Restore GimpMetadata API - merge with Master

restore xcf-functions
restore file-load/save functions

app/core/Makefile.am

@@ -284,6 +284,8 @@ libappcore_a_sources = \
 	gimpitem-exclusive.h			\
 	gimpitem-linked.c			\
 	gimpitem-linked.h			\
+	gimpitem-metadata.c			\
+	gimpitem-metadata.h			\
 	gimpitem-preview.c			\
 	gimpitem-preview.h			\
 	gimpitempropundo.c			\

app/core/core-enums.c

@@ -853,14 +853,15 @@ gimp_undo_type_get_type (void)
     { GIMP_UNDO_IMAGE_SIZE, "GIMP_UNDO_IMAGE_SIZE", "image-size" },
     { GIMP_UNDO_IMAGE_RESOLUTION, "GIMP_UNDO_IMAGE_RESOLUTION", "image-resolution" },
     { GIMP_UNDO_IMAGE_GRID, "GIMP_UNDO_IMAGE_GRID", "image-grid" },
-    { GIMP_UNDO_IMAGE_METADATA, "GIMP_UNDO_IMAGE_METADATA", "image-metadata" },
     { GIMP_UNDO_IMAGE_COLORMAP, "GIMP_UNDO_IMAGE_COLORMAP", "image-colormap" },
     { GIMP_UNDO_IMAGE_COLOR_MANAGED, "GIMP_UNDO_IMAGE_COLOR_MANAGED", "image-color-managed" },
+    { GIMP_UNDO_IMAGE_ATTRIBUTES, "GIMP_UNDO_IMAGE_ATTRIBUTES", "image-attributes" },
     { GIMP_UNDO_GUIDE, "GIMP_UNDO_GUIDE", "guide" },
     { GIMP_UNDO_SAMPLE_POINT, "GIMP_UNDO_SAMPLE_POINT", "sample-point" },
     { GIMP_UNDO_DRAWABLE, "GIMP_UNDO_DRAWABLE", "drawable" },
     { GIMP_UNDO_DRAWABLE_MOD, "GIMP_UNDO_DRAWABLE_MOD", "drawable-mod" },
     { GIMP_UNDO_MASK, "GIMP_UNDO_MASK", "mask" },
+    { GIMP_UNDO_ITEM_ATTRIBUTES, "GIMP_UNDO_ITEM_ATTRIBUTES", "item-attributes" },
     { GIMP_UNDO_ITEM_REORDER, "GIMP_UNDO_ITEM_REORDER", "item-reorder" },
     { GIMP_UNDO_ITEM_RENAME, "GIMP_UNDO_ITEM_RENAME", "item-rename" },
     { GIMP_UNDO_ITEM_DISPLACE, "GIMP_UNDO_ITEM_DISPLACE", "item-displace" },
@@ -897,6 +898,7 @@ gimp_undo_type_get_type (void)
     { GIMP_UNDO_FOREGROUND_SELECT, "GIMP_UNDO_FOREGROUND_SELECT", "foreground-select" },
     { GIMP_UNDO_PARASITE_ATTACH, "GIMP_UNDO_PARASITE_ATTACH", "parasite-attach" },
     { GIMP_UNDO_PARASITE_REMOVE, "GIMP_UNDO_PARASITE_REMOVE", "parasite-remove" },
+    { GIMP_UNDO_VIEWABLE_ATTRIBUTES, "GIMP_UNDO_VIEWABLE_ATTRIBUTES", "viewable-attributes" },
     { GIMP_UNDO_CANT, "GIMP_UNDO_CANT", "cant" },
     { 0, NULL, NULL }
   };
@@ -946,14 +948,15 @@ gimp_undo_type_get_type (void)
     { GIMP_UNDO_IMAGE_SIZE, NC_("undo-type", "Image size"), NULL },
     { GIMP_UNDO_IMAGE_RESOLUTION, NC_("undo-type", "Image resolution change"), NULL },
     { GIMP_UNDO_IMAGE_GRID, NC_("undo-type", "Grid"), NULL },
-    { GIMP_UNDO_IMAGE_METADATA, NC_("undo-type", "Change metadata"), NULL },
     { GIMP_UNDO_IMAGE_COLORMAP, NC_("undo-type", "Change indexed palette"), NULL },
     { GIMP_UNDO_IMAGE_COLOR_MANAGED, NC_("undo-type", "Change color managed state"), NULL },
+    { GIMP_UNDO_IMAGE_ATTRIBUTES, "GIMP_UNDO_IMAGE_ATTRIBUTES", NULL },
     { GIMP_UNDO_GUIDE, NC_("undo-type", "Guide"), NULL },
     { GIMP_UNDO_SAMPLE_POINT, NC_("undo-type", "Sample Point"), NULL },
     { GIMP_UNDO_DRAWABLE, NC_("undo-type", "Layer/Channel"), NULL },
     { GIMP_UNDO_DRAWABLE_MOD, NC_("undo-type", "Layer/Channel modification"), NULL },
     { GIMP_UNDO_MASK, NC_("undo-type", "Selection mask"), NULL },
+    { GIMP_UNDO_ITEM_ATTRIBUTES, "GIMP_UNDO_ITEM_ATTRIBUTES", NULL },
     { GIMP_UNDO_ITEM_REORDER, NC_("undo-type", "Reorder item"), NULL },
     { GIMP_UNDO_ITEM_RENAME, NC_("undo-type", "Rename item"), NULL },
     { GIMP_UNDO_ITEM_DISPLACE, NC_("undo-type", "Move item"), NULL },
@@ -990,6 +993,7 @@ gimp_undo_type_get_type (void)
     { GIMP_UNDO_FOREGROUND_SELECT, NC_("undo-type", "Select foreground"), NULL },
     { GIMP_UNDO_PARASITE_ATTACH, NC_("undo-type", "Attach parasite"), NULL },
     { GIMP_UNDO_PARASITE_REMOVE, NC_("undo-type", "Remove parasite"), NULL },
+    { GIMP_UNDO_VIEWABLE_ATTRIBUTES, "GIMP_UNDO_VIEWABLE_ATTRIBUTES", NULL },
     { GIMP_UNDO_CANT, NC_("undo-type", "Not undoable"), NULL },
     { 0, NULL, NULL }
   };

app/core/core-enums.h

@@ -425,14 +425,15 @@ typedef enum /*< pdb-skip >*/
   GIMP_UNDO_IMAGE_SIZE,               /*< desc="Image size"                  >*/
   GIMP_UNDO_IMAGE_RESOLUTION,         /*< desc="Image resolution change"     >*/
   GIMP_UNDO_IMAGE_GRID,               /*< desc="Grid"                        >*/
-  GIMP_UNDO_IMAGE_METADATA,           /*< desc="Change metadata"             >*/
   GIMP_UNDO_IMAGE_COLORMAP,           /*< desc="Change indexed palette"      >*/
   GIMP_UNDO_IMAGE_COLOR_MANAGED,      /*< desc="Change color managed state"  >*/
+  GIMP_UNDO_IMAGE_ATTRIBUTES,         /*< desc="Change attributes            >*/
   GIMP_UNDO_GUIDE,                    /*< desc="Guide"                       >*/
   GIMP_UNDO_SAMPLE_POINT,             /*< desc="Sample Point"                >*/
   GIMP_UNDO_DRAWABLE,                 /*< desc="Layer/Channel"               >*/
   GIMP_UNDO_DRAWABLE_MOD,             /*< desc="Layer/Channel modification"  >*/
   GIMP_UNDO_MASK,                     /*< desc="Selection mask"              >*/
+  GIMP_UNDO_ITEM_ATTRIBUTES,          /*< desc="Change attributes            >*/
   GIMP_UNDO_ITEM_REORDER,             /*< desc="Reorder item"                >*/
   GIMP_UNDO_ITEM_RENAME,              /*< desc="Rename item"                 >*/
   GIMP_UNDO_ITEM_DISPLACE,            /*< desc="Move item"                   >*/
@@ -469,6 +470,7 @@ typedef enum /*< pdb-skip >*/
   GIMP_UNDO_FOREGROUND_SELECT,        /*< desc="Select foreground"           >*/
   GIMP_UNDO_PARASITE_ATTACH,          /*< desc="Attach parasite"             >*/
   GIMP_UNDO_PARASITE_REMOVE,          /*< desc="Remove parasite"             >*/
+  GIMP_UNDO_VIEWABLE_ATTRIBUTES,      /*< desc="Change attributes            >*/
 
   GIMP_UNDO_CANT                      /*< desc="Not undoable"                >*/
 } GimpUndoType;

app/core/core-types.h

@@ -157,6 +157,7 @@ typedef struct _GimpGroupLayer      GimpGroupLayer;
 typedef struct _GimpUndo            GimpUndo;
 typedef struct _GimpUndoStack       GimpUndoStack;
 typedef struct _GimpUndoAccumulator GimpUndoAccumulator;
+typedef struct _GimpViewableUndo      GimpViewableUndo;
 
 
 /* Symmetry transformations */

app/core/gimp.c

@@ -38,6 +38,8 @@
 #include "plug-in/gimppluginmanager.h"
 #include "plug-in/gimppluginmanager-restore.h"
 
+#include "gui/gimpdbusservice-generated.h"
+
 #include "paint/gimp-paint.h"
 
 #include "text/gimp-fonts.h"

app/core/gimpchannel.c

@@ -23,6 +23,7 @@
 #include <gegl.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
 
+#include "libgimpbase/gimpbase.h"
 #include "libgimpmath/gimpmath.h"
 #include "libgimpcolor/gimpcolor.h"
 
@@ -44,6 +45,7 @@
 #include "gimpimage-quick-mask.h"
 #include "gimpimage-undo.h"
 #include "gimpimage-undo-push.h"
+#include "gimpitem-metadata.h"
 #include "gimpchannel.h"
 #include "gimpchannel-select.h"
 #include "gimpcontext.h"
@@ -538,6 +540,9 @@ gimp_channel_duplicate (GimpItem *item,
 
   if (GIMP_IS_CHANNEL (new_item))
     {
+      GimpAttributes *attributes;
+      GimpAttributes *new_attributes;
+
       GimpChannel *channel     = GIMP_CHANNEL (item);
       GimpChannel *new_channel = GIMP_CHANNEL (new_item);
 
@@ -551,6 +556,15 @@ gimp_channel_duplicate (GimpItem *item,
       new_channel->y1           = channel->y1;
       new_channel->x2           = channel->x2;
       new_channel->y2           = channel->y2;
+
+      attributes = gimp_item_get_attributes (item);
+      if (attributes)
+        {
+          new_attributes = gimp_attributes_duplicate (attributes);
+          gimp_item_set_attributes (new_item, new_attributes, FALSE);
+          g_object_unref (new_attributes);
+        }
+
     }
 
   return new_item;

app/core/gimpimage-duplicate.c

@@ -73,7 +73,7 @@ static void          gimp_image_duplicate_sample_points    (GimpImage *image,
                                                             GimpImage *new_image);
 static void          gimp_image_duplicate_grid             (GimpImage *image,
                                                             GimpImage *new_image);
-static void          gimp_image_duplicate_metadata         (GimpImage *image,
+static void          gimp_image_duplicate_attributes       (GimpImage *image,
                                                             GimpImage *new_image);
 static void          gimp_image_duplicate_quick_mask       (GimpImage *image,
                                                             GimpImage *new_image);
@@ -154,8 +154,8 @@ gimp_image_duplicate (GimpImage *image)
   /*  Copy the grid  */
   gimp_image_duplicate_grid (image, new_image);
 
-  /*  Copy the metadata  */
-  gimp_image_duplicate_metadata (image, new_image);
+  /*  Copy the attributes  */
+  gimp_image_duplicate_attributes (image, new_image);
 
   /*  Copy the quick mask info  */
   gimp_image_duplicate_quick_mask (image, new_image);
@@ -479,16 +479,16 @@ gimp_image_duplicate_grid (GimpImage *image,
 }
 
 static void
-gimp_image_duplicate_metadata (GimpImage *image,
-                               GimpImage *new_image)
+gimp_image_duplicate_attributes (GimpImage *image,
+                                 GimpImage *new_image)
 {
-  GimpMetadata *metadata = gimp_image_get_metadata (image);
+  GimpAttributes *attributes = gimp_image_get_attributes (image);
 
-  if (metadata)
+  if (attributes)
     {
-      metadata = gimp_metadata_duplicate (metadata);
-      gimp_image_set_metadata (new_image, metadata, FALSE);
-      g_object_unref (metadata);
+      attributes = gimp_attributes_duplicate (attributes);
+      gimp_image_set_attributes (new_image, attributes, FALSE);
+      g_object_unref (attributes);
     }
 }
 

app/core/gimpimage-merge.c

@@ -40,8 +40,10 @@
 #include "gimpgrouplayer.h"
 #include "gimpimage.h"
 #include "gimpimage-merge.h"
+#include "gimpimage-metadata.h"
 #include "gimpimage-undo.h"
 #include "gimpitemstack.h"
+#include "gimpitem-metadata.h"
 #include "gimplayer-floating-selection.h"
 #include "gimplayer-new.h"
 #include "gimplayermask.h"
@@ -428,6 +430,7 @@ gimp_image_merge_layers (GimpImage     *image,
   GimpLayer        *layer;
   GimpLayer        *bottom_layer;
   GimpParasiteList *parasites;
+  GimpAttributes   *attributes;
   gint              count;
   gint              x1, y1, x2, y2;
   gint              off_x, off_y;
@@ -522,8 +525,8 @@ gimp_image_merge_layers (GimpImage     *image,
       (gimp_drawable_is_indexed (GIMP_DRAWABLE (layer)) &&
        ! gimp_drawable_has_alpha (GIMP_DRAWABLE (layer))))
     {
-      GeglColor *color;
-      GimpRGB    bg;
+      GeglColor      *color;
+      GimpRGB         bg;
 
       merge_layer = gimp_layer_new (image, (x2 - x1), (y2 - y1),
                                     gimp_image_get_layer_format (image, FALSE),
@@ -585,6 +588,22 @@ gimp_image_merge_layers (GimpImage     *image,
 
   bottom_layer = layer;
 
+  /* Copy the attributes of the bottom layer to the new layer */
+
+  attributes = gimp_item_get_attributes (GIMP_ITEM (bottom_layer));
+
+  if (!attributes)
+    attributes = gimp_image_get_attributes (image);
+
+  if (attributes)
+    {
+      GimpAttributes *new_attributes;
+
+      new_attributes = gimp_attributes_duplicate (attributes);
+      gimp_item_set_attributes (GIMP_ITEM (merge_layer), new_attributes, TRUE);
+      g_object_unref (new_attributes);
+    }
+
   /* Copy the tattoo and parasites of the bottom layer to the new layer */
   gimp_item_set_tattoo (GIMP_ITEM (merge_layer),
                         gimp_item_get_tattoo (GIMP_ITEM (bottom_layer)));

app/core/gimpimage-metadata.c

@@ -36,13 +36,20 @@
 GimpMetadata *
 gimp_image_get_metadata (GimpImage *image)
 {
-  GimpImagePrivate *private;
+  GimpAttributes *attributes = NULL;
+  GimpMetadata   *metadata   = NULL;
 
   g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
   
-  private = GIMP_IMAGE_GET_PRIVATE (image);
-
-  return private->metadata;
+  attributes = gimp_image_get_attributes (image);
+  if (attributes)
+  {
+    metadata = gimp_metadata_new ();
+    gimp_attributes_to_metadata (attributes, 
+                                 metadata, 
+                                 "image/any");
+  }
+  return metadata;
 }
 
 void
@@ -50,58 +57,85 @@ gimp_image_set_metadata (GimpImage    *image,
                          GimpMetadata *metadata,
                          gboolean      push_undo)
 {
-  GimpImagePrivate *private;
+  GimpAttributes *attributes = NULL;
+
+  attributes = gimp_attributes_from_metadata (NULL, metadata);
+  
+  gimp_image_set_attributes (image, 
+                             attributes, 
+                             push_undo);
+  g_object_unref (attributes);
+}
+
+void
+gimp_image_set_attributes (GimpImage      *image,
+                           GimpAttributes *attributes,
+                           gboolean        push_undo)
+{
+  GimpViewable *viewable;
+  gdouble xres, yres;
 
   g_return_if_fail (GIMP_IS_IMAGE (image));
 
-  private = GIMP_IMAGE_GET_PRIVATE (image);
+  if (! attributes)
+    return;
 
-  if (metadata != private->metadata)
+  if (push_undo)
+    gimp_image_undo_push_image_attributes (image, NULL);
+
+  viewable = GIMP_VIEWABLE (image);
+
+  if (viewable)
     {
-      if (push_undo)
-        gimp_image_undo_push_image_metadata (image, NULL);
 
-      if (private->metadata)
-        g_object_unref (private->metadata);
+      gimp_attributes_set_pixel_size (attributes,
+                                      gimp_image_get_width  (image),
+                                      gimp_image_get_height (image));
 
-      private->metadata = metadata;
+      switch (gimp_image_get_component_type (image))
+      {
+        case GIMP_COMPONENT_TYPE_U8:
+          gimp_attributes_set_bits_per_sample (attributes, 8);
+          break;
 
-      if (private->metadata)
-        {
-          gdouble xres, yres;
+        case GIMP_COMPONENT_TYPE_U16:
+        case GIMP_COMPONENT_TYPE_HALF:
+          gimp_attributes_set_bits_per_sample (attributes, 16);
+          break;
 
-          g_object_ref (private->metadata);
+        case GIMP_COMPONENT_TYPE_U32:
+        case GIMP_COMPONENT_TYPE_FLOAT:
+          gimp_attributes_set_bits_per_sample (attributes, 32);
+          break;
 
-          gimp_metadata_set_pixel_size (metadata,
-                                        gimp_image_get_width  (image),
-                                        gimp_image_get_height (image));
+        case GIMP_COMPONENT_TYPE_DOUBLE:
+          gimp_attributes_set_bits_per_sample (attributes, 64);
+          break;
+      }
 
-          switch (gimp_image_get_component_type (image))
-            {
-            case GIMP_COMPONENT_TYPE_U8:
-              gimp_metadata_set_bits_per_sample (metadata, 8);
-              break;
+      gimp_image_get_resolution (image, &xres, &yres);
+      gimp_attributes_set_resolution (attributes, xres, yres,
+                                      gimp_image_get_unit (image));
 
-            case GIMP_COMPONENT_TYPE_U16:
-            case GIMP_COMPONENT_TYPE_HALF:
-              gimp_metadata_set_bits_per_sample (metadata, 16);
-              break;
-
-            case GIMP_COMPONENT_TYPE_U32:
-            case GIMP_COMPONENT_TYPE_FLOAT:
-              gimp_metadata_set_bits_per_sample (metadata, 32);
-              break;
-
-            case GIMP_COMPONENT_TYPE_DOUBLE:
-              gimp_metadata_set_bits_per_sample (metadata, 64);
-              break;
-            }
-
-          gimp_image_get_resolution (image, &xres, &yres);
-          gimp_metadata_set_resolution (metadata, xres, yres,
-                                        gimp_image_get_unit (image));
-        }
-
-      g_object_notify (G_OBJECT (image), "metadata");
+      gimp_viewable_set_attributes (viewable, attributes);
     }
 }
+
+GimpAttributes *
+gimp_image_get_attributes (GimpImage *image)
+{
+  GimpViewable   *viewable;
+  GimpAttributes *attributes;
+
+  g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
+
+  viewable = GIMP_VIEWABLE (image);
+
+  if (viewable)
+    {
+      attributes = gimp_viewable_get_attributes (viewable);
+      return attributes;
+    }
+
+  return NULL;
+}

app/core/gimpimage-metadata.h

@@ -19,10 +19,14 @@
 #define __GIMP_IMAGE_METADATA_H__
 
 
-GimpMetadata * gimp_image_get_metadata (GimpImage    *image);
-void           gimp_image_set_metadata (GimpImage    *image,
-                                        GimpMetadata *metadata,
-                                        gboolean      push_undo);
+GimpMetadata   *  gimp_image_get_metadata    (GimpImage    *image);
+void              gimp_image_set_metadata    (GimpImage    *image,
+                                              GimpMetadata *metadata,
+                                              gboolean      push_undo);
+void              gimp_image_set_attributes  (GimpImage      *image,
+                                              GimpAttributes *attributes,
+                                              gboolean        push_undo);
+GimpAttributes *  gimp_image_get_attributes  (GimpImage      *image);
 
 
 #endif /* __GIMP_IMAGE_METADATA_H__ */

app/core/gimpimage-undo-push.c

@@ -49,6 +49,8 @@
 #include "gimpsamplepoint.h"
 #include "gimpsamplepointundo.h"
 #include "gimpselection.h"
+#include "gimpviewable.h"
+#include "gimpviewableundo.h"
 
 #include "text/gimptextlayer.h"
 #include "text/gimptextundo.h"
@@ -161,17 +163,32 @@ gimp_image_undo_push_image_color_managed (GimpImage   *image,
 }
 
 GimpUndo *
-gimp_image_undo_push_image_metadata (GimpImage   *image,
+gimp_image_undo_push_image_attributes (GimpImage   *image,
                                      const gchar *undo_desc)
 {
   g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
 
   return gimp_image_undo_push (image, GIMP_TYPE_IMAGE_UNDO,
-                               GIMP_UNDO_IMAGE_METADATA, undo_desc,
+                               GIMP_UNDO_IMAGE_ATTRIBUTES, undo_desc,
                                GIMP_DIRTY_IMAGE_META,
                                NULL);
 }
 
+
+GimpUndo *
+gimp_image_undo_push_item_attributes (GimpImage    *image,
+                                      const gchar  *undo_desc,
+                                      GimpItem     *item)
+{
+  g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
+
+  return gimp_image_undo_push (image, GIMP_TYPE_ITEM_UNDO,
+                               GIMP_UNDO_ITEM_ATTRIBUTES, undo_desc,
+                               GIMP_DIRTY_IMAGE_META,
+                               "item", item,
+                               NULL);
+}
+
 GimpUndo *
 gimp_image_undo_push_image_parasite (GimpImage          *image,
                                      const gchar        *undo_desc,

app/core/gimpimage-undo-push.h

@@ -40,7 +40,7 @@ GimpUndo * gimp_image_undo_push_image_colormap      (GimpImage     *image,
                                                      const gchar   *undo_desc);
 GimpUndo * gimp_image_undo_push_image_color_managed (GimpImage     *image,
                                                      const gchar   *undo_desc);
-GimpUndo * gimp_image_undo_push_image_metadata      (GimpImage     *image,
+GimpUndo * gimp_image_undo_push_image_attributes    (GimpImage     *image,
                                                      const gchar   *undo_desc);
 GimpUndo * gimp_image_undo_push_image_parasite      (GimpImage     *image,
                                                      const gchar   *undo_desc,
@@ -118,6 +118,9 @@ GimpUndo * gimp_image_undo_push_item_parasite_remove(GimpImage     *image,
                                                      const gchar   *undo_desc,
                                                      GimpItem      *item,
                                                      const gchar   *name);
+GimpUndo * gimp_image_undo_push_item_attributes     (GimpImage     *image,
+                                                     const gchar   *undo_desc,
+                                                     GimpItem      *item);
 
 
 /*  layer undos  */
@@ -234,5 +237,4 @@ GimpUndo * gimp_image_undo_push_fs_to_layer         (GimpImage     *image,
 GimpUndo * gimp_image_undo_push_cantundo            (GimpImage     *image,
                                                      const gchar   *undo_desc);
 
-
 #endif  /* __GIMP_IMAGE_UNDO_PUSH_H__ */

app/core/gimpimage.c

@@ -958,9 +958,6 @@ gimp_image_get_property (GObject    *object,
     case PROP_PRECISION:
       g_value_set_enum (value, private->precision);
       break;
-    case PROP_METADATA:
-      g_value_set_object (value, gimp_image_get_metadata (image));
-      break;
     case PROP_BUFFER:
       g_value_set_object (value, gimp_image_get_buffer (GIMP_PICKABLE (image)));
       break;
@@ -1279,10 +1276,10 @@ gimp_image_get_size (GimpViewable *viewable,
 static void
 gimp_image_size_changed (GimpViewable *viewable)
 {
-  GimpImage    *image = GIMP_IMAGE (viewable);
-  GimpMetadata *metadata;
-  GList        *all_items;
-  GList        *list;
+  GimpImage      *image = GIMP_IMAGE (viewable);
+  GimpAttributes *attributes;
+  GList          *all_items;
+  GList          *list;
 
   if (GIMP_VIEWABLE_CLASS (parent_class)->size_changed)
     GIMP_VIEWABLE_CLASS (parent_class)->size_changed (viewable);
@@ -1307,12 +1304,15 @@ gimp_image_size_changed (GimpViewable *viewable)
 
   gimp_viewable_size_changed (GIMP_VIEWABLE (gimp_image_get_mask (image)));
 
-  metadata = gimp_image_get_metadata (image);
-  if (metadata)
-    gimp_metadata_set_pixel_size (metadata,
-                                  gimp_image_get_width  (image),
-                                  gimp_image_get_height (image));
+  attributes = gimp_image_get_attributes (image);
 
+  if (attributes)
+    {
+      gimp_attributes_set_pixel_size (attributes,
+                                      gimp_image_get_width  (image),
+                                      gimp_image_get_height (image));
+
+    }
   gimp_projectable_structure_changed (GIMP_PROJECTABLE (image));
 }
 
@@ -1339,31 +1339,32 @@ gimp_image_real_mode_changed (GimpImage *image)
 static void
 gimp_image_real_precision_changed (GimpImage *image)
 {
-  GimpMetadata *metadata;
+  GimpAttributes *attributes;
 
-  metadata = gimp_image_get_metadata (image);
-  if (metadata)
+  attributes = gimp_image_get_attributes (image);
+
+  if (attributes)
     {
       switch (gimp_image_get_component_type (image))
-        {
+      {
         case GIMP_COMPONENT_TYPE_U8:
-          gimp_metadata_set_bits_per_sample (metadata, 8);
+          gimp_attributes_set_bits_per_sample (attributes, 8);
           break;
 
         case GIMP_COMPONENT_TYPE_U16:
         case GIMP_COMPONENT_TYPE_HALF:
-          gimp_metadata_set_bits_per_sample (metadata, 16);
+          gimp_attributes_set_bits_per_sample (attributes, 16);
           break;
 
         case GIMP_COMPONENT_TYPE_U32:
         case GIMP_COMPONENT_TYPE_FLOAT:
-          gimp_metadata_set_bits_per_sample (metadata, 32);
+          gimp_attributes_set_bits_per_sample (attributes, 32);
           break;
 
         case GIMP_COMPONENT_TYPE_DOUBLE:
-          gimp_metadata_set_bits_per_sample (metadata, 64);
+          gimp_attributes_set_bits_per_sample (attributes, 64);
           break;
-        }
+      }
     }
 
   gimp_projectable_structure_changed (GIMP_PROJECTABLE (image));
@@ -1372,16 +1373,17 @@ gimp_image_real_precision_changed (GimpImage *image)
 static void
 gimp_image_real_resolution_changed (GimpImage *image)
 {
-  GimpMetadata *metadata;
+  GimpAttributes *attributes;
 
-  metadata = gimp_image_get_metadata (image);
-  if (metadata)
+  attributes = gimp_image_get_attributes (image);
+
+  if (attributes)
     {
       gdouble xres, yres;
 
       gimp_image_get_resolution (image, &xres, &yres);
-      gimp_metadata_set_resolution (metadata, xres, yres,
-                                    gimp_image_get_unit (image));
+      gimp_attributes_set_resolution (attributes, xres, yres,
+                                      gimp_image_get_unit (image));
     }
 }
 
@@ -1402,16 +1404,17 @@ gimp_image_real_size_changed_detailed (GimpImage *image,
 static void
 gimp_image_real_unit_changed (GimpImage *image)
 {
-  GimpMetadata *metadata;
+  GimpAttributes *attributes;
 
-  metadata = gimp_image_get_metadata (image);
-  if (metadata)
+  attributes = gimp_image_get_attributes (image);
+
+  if (attributes)
     {
       gdouble xres, yres;
 
       gimp_image_get_resolution (image, &xres, &yres);
-      gimp_metadata_set_resolution (metadata, xres, yres,
-                                    gimp_image_get_unit (image));
+      gimp_attributes_set_resolution (attributes, xres, yres,
+                                      gimp_image_get_unit (image));
     }
 }
 

app/core/gimpimageundo.c

@@ -192,9 +192,9 @@ gimp_image_undo_constructed (GObject *object)
       image_undo->is_color_managed = gimp_image_get_is_color_managed (image);
       break;
 
-    case GIMP_UNDO_IMAGE_METADATA:
-      image_undo->metadata =
-        gimp_metadata_duplicate (gimp_image_get_metadata (image));
+    case GIMP_UNDO_IMAGE_ATTRIBUTES:
+      image_undo->attributes =
+        gimp_attributes_duplicate (gimp_image_get_attributes (image));
       break;
 
     case GIMP_UNDO_PARASITE_ATTACH:
@@ -295,8 +295,8 @@ gimp_image_undo_get_memsize (GimpObject *object,
   if (image_undo->colormap)
     memsize += GIMP_IMAGE_COLORMAP_SIZE;
 
-  if (image_undo->metadata)
-    memsize += gimp_g_object_get_memsize (G_OBJECT (image_undo->metadata));
+  if (image_undo->attributes)
+    memsize += gimp_g_object_get_memsize (G_OBJECT (image_undo->attributes));
 
   memsize += gimp_object_get_memsize (GIMP_OBJECT (image_undo->grid),
                                       gui_size);
@@ -483,17 +483,17 @@ gimp_image_undo_pop (GimpUndo            *undo,
       }
       break;
 
-    case GIMP_UNDO_IMAGE_METADATA:
+    case GIMP_UNDO_IMAGE_ATTRIBUTES:
       {
-        GimpMetadata *metadata;
+        GimpAttributes *attributes;
 
-        metadata = gimp_metadata_duplicate (gimp_image_get_metadata (image));
+        attributes = gimp_attributes_duplicate (gimp_image_get_attributes (image));
 
-        gimp_image_set_metadata (image, image_undo->metadata, FALSE);
+        gimp_image_set_attributes (image, image_undo->attributes, FALSE);
 
-        if (image_undo->metadata)
-          g_object_unref (image_undo->metadata);
-        image_undo->metadata = metadata;
+        if (image_undo->attributes)
+          g_object_unref (image_undo->attributes);
+        image_undo->attributes = attributes;
       }
       break;
 
@@ -545,10 +545,10 @@ gimp_image_undo_free (GimpUndo     *undo,
       image_undo->colormap = NULL;
     }
 
-  if (image_undo->metadata)
+  if (image_undo->attributes)
     {
-      g_object_unref (image_undo->metadata);
-      image_undo->metadata = NULL;
+      g_object_unref (image_undo->attributes);
+      image_undo->attributes = NULL;
     }
 
   if (image_undo->parasite_name)

app/core/gimpimageundo.h

@@ -53,6 +53,7 @@ struct _GimpImageUndo
   guchar            *colormap;
   gboolean           is_color_managed;
   GimpMetadata      *metadata;
+  GimpAttributes    *attributes;
   gchar             *parasite_name;
   GimpParasite      *parasite;
 };

app/core/gimpitem-metadata.c

@@ -0,0 +1,73 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpimage.h"
+#include "gimpitem.h"
+#include "gimpitem-metadata.h"
+
+
+/* public functions */
+
+void
+gimp_item_set_attributes (GimpItem *item,
+                          GimpAttributes *attributes,
+                          gboolean        push_undo)
+{
+  GimpViewable *viewable;
+
+  g_return_if_fail (GIMP_IS_ITEM (item));
+
+  if (push_undo)
+    gimp_image_undo_push_item_attributes (gimp_item_get_image (item),
+                                          NULL,
+                                          item);
+
+  viewable = GIMP_VIEWABLE (item);
+
+  if (viewable)
+    {
+      gimp_viewable_set_attributes (viewable, attributes);
+    }
+}
+
+GimpAttributes *
+gimp_item_get_attributes (GimpItem *item)
+{
+  GimpViewable   *viewable;
+  GimpAttributes *attributes;
+
+  g_return_val_if_fail (GIMP_IS_ITEM (item), NULL);
+
+  viewable = GIMP_VIEWABLE (item);
+
+  if (viewable)
+    {
+      attributes = gimp_viewable_get_attributes (viewable);
+      return attributes;
+    }
+
+  return NULL;
+}

app/core/gimpitem-metadata.h

@@ -0,0 +1,28 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_ITEM_METADATA_H__
+#define __GIMP_ITEM_METADATA_H__
+
+
+void              gimp_item_set_attributes  (GimpItem       *item,
+                                             GimpAttributes *attributes,
+                                             gboolean        push_undo);
+GimpAttributes *  gimp_item_get_attributes  (GimpItem       *item);
+
+
+#endif /* __GIMP_ITEM_METADATA_H__ */

app/core/gimpitemundo.c

@@ -22,8 +22,11 @@
 
 #include "core-types.h"
 
+#include "libgimpbase/gimpbase.h"
+
 #include "gimpimage.h"
 #include "gimpitem.h"
+#include "gimpitem-metadata.h"
 #include "gimpitemundo.h"
 
 
@@ -34,18 +37,21 @@ enum
 };
 
 
-static void   gimp_item_undo_constructed  (GObject      *object);
-static void   gimp_item_undo_set_property (GObject      *object,
-                                           guint         property_id,
-                                           const GValue *value,
-                                           GParamSpec   *pspec);
-static void   gimp_item_undo_get_property (GObject      *object,
-                                           guint         property_id,
-                                           GValue       *value,
-                                           GParamSpec   *pspec);
+static void   gimp_item_undo_constructed  (GObject             *object);
+static void   gimp_item_undo_set_property (GObject             *object,
+                                           guint                property_id,
+                                           const GValue        *value,
+                                           GParamSpec          *pspec);
+static void   gimp_item_undo_get_property (GObject             *object,
+                                           guint                property_id,
+                                           GValue              *value,
+                                           GParamSpec          *pspec);
 
-static void   gimp_item_undo_free         (GimpUndo     *undo,
-                                           GimpUndoMode  undo_mode);
+static void   gimp_item_undo_free         (GimpUndo            *undo,
+                                           GimpUndoMode         undo_mode);
+static void   gimp_item_undo_pop          (GimpUndo            *undo,
+                                           GimpUndoMode         undo_mode,
+                                           GimpUndoAccumulator *accum);
 
 
 G_DEFINE_TYPE (GimpItemUndo, gimp_item_undo, GIMP_TYPE_UNDO)
@@ -63,6 +69,7 @@ gimp_item_undo_class_init (GimpItemUndoClass *klass)
   object_class->set_property = gimp_item_undo_set_property;
   object_class->get_property = gimp_item_undo_get_property;
 
+  undo_class->pop            = gimp_item_undo_pop;
   undo_class->free           = gimp_item_undo_free;
 
   g_object_class_install_property (object_class, PROP_ITEM,
@@ -84,7 +91,14 @@ gimp_item_undo_constructed (GObject *object)
 
   G_OBJECT_CLASS (parent_class)->constructed (object);
 
-  g_assert (GIMP_IS_ITEM (item_undo->item));
+  switch (GIMP_UNDO (object)->undo_type)
+  {
+    case GIMP_UNDO_ITEM_ATTRIBUTES:
+      item_undo->attributes =
+          gimp_attributes_duplicate (gimp_item_get_attributes (item_undo->item));
+      break;
+  }
+
 }
 
 static void
@@ -139,5 +153,42 @@ gimp_item_undo_free (GimpUndo     *undo,
       item_undo->item = NULL;
     }
 
+  if (item_undo->attributes)
+    {
+      g_object_unref (item_undo->attributes);
+      item_undo->attributes = NULL;
+    }
+
   GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
 }
+
+static void
+gimp_item_undo_pop     (GimpUndo            *undo,
+                        GimpUndoMode         undo_mode,
+                        GimpUndoAccumulator *accum)
+{
+  GimpItemUndo   *item_undo  = GIMP_ITEM_UNDO (undo);
+  GimpItem       *item       = GIMP_ITEM_UNDO (undo)->item;
+
+  switch (undo->undo_type)
+    {
+    case GIMP_UNDO_ITEM_ATTRIBUTES:
+      {
+        GimpAttributes *attributes;
+
+        attributes = gimp_attributes_duplicate (gimp_item_get_attributes (item));
+
+        gimp_item_set_attributes (item, item_undo->attributes, FALSE);
+
+        if (item_undo->attributes)
+          g_object_unref (item_undo->attributes);
+        item_undo->attributes = attributes;
+      }
+      break;
+
+    default:
+//      g_assert_not_reached ();
+      break;
+
+    }
+}

app/core/gimpitemundo.h

@@ -38,6 +38,8 @@ struct _GimpItemUndo
   GimpUndo  parent_instance;
 
   GimpItem *item;  /* the item this undo is for */
+  GimpAttributes    *attributes; 
+
 };
 
 struct _GimpItemUndoClass

app/core/gimplayer.c

@@ -743,7 +743,9 @@ static GimpItem *
 gimp_layer_duplicate (GimpItem *item,
                       GType     new_type)
 {
-  GimpItem *new_item;
+  GimpItem       *new_item;
+  GimpAttributes *attributes;
+  GimpAttributes *new_attributes;
 
   g_return_val_if_fail (g_type_is_a (new_type, GIMP_TYPE_DRAWABLE), NULL);
 
@@ -774,6 +776,14 @@ gimp_layer_duplicate (GimpItem *item,
           new_layer->edit_mask  = layer->edit_mask;
           new_layer->show_mask  = layer->show_mask;
         }
+
+      attributes = gimp_viewable_get_attributes (GIMP_VIEWABLE (layer));
+      if (attributes)
+        {
+          new_attributes = gimp_attributes_duplicate (attributes);
+          gimp_viewable_set_attributes (GIMP_VIEWABLE (new_layer), new_attributes);
+          g_object_unref (new_attributes);
+        }
     }
 
   return new_item;

app/core/gimpviewable.c

@@ -26,6 +26,7 @@
 #include <gdk-pixbuf/gdk-pixbuf.h>
 #include <gegl.h>
 
+#include "libgimpbase/gimpbase.h"
 #include "libgimpcolor/gimpcolor.h"
 #include "libgimpmath/gimpmath.h"
 #include "libgimpconfig/gimpconfig.h"
@@ -125,7 +126,6 @@ static gboolean gimp_viewable_deserialize_property   (GimpConfig       *config,
                                                       GScanner         *scanner,
                                                       GTokenType       *expected);
 
-
 G_DEFINE_TYPE_WITH_CODE (GimpViewable, gimp_viewable, GIMP_TYPE_OBJECT,
                          G_IMPLEMENT_INTERFACE (GIMP_TYPE_CONFIG,
                                                 gimp_viewable_config_iface_init))
@@ -213,6 +213,7 @@ gimp_viewable_class_init (GimpViewableClass *klass)
 static void
 gimp_viewable_init (GimpViewable *viewable)
 {
+  viewable->attributes = NULL;
 }
 
 static void
@@ -225,6 +226,7 @@ gimp_viewable_config_iface_init (GimpConfigInterface *iface)
 static void
 gimp_viewable_finalize (GObject *object)
 {
+  GimpViewable        *viewable = GIMP_VIEWABLE (object);
   GimpViewablePrivate *private = GET_PRIVATE (object);
 
   if (private->icon_name)
@@ -250,6 +252,11 @@ gimp_viewable_finalize (GObject *object)
       g_object_unref (private->preview_pixbuf);
       private->preview_pixbuf = NULL;
     }
+  if (viewable->attributes)
+    {
+      g_object_unref (viewable->attributes);
+      viewable->attributes = NULL;
+    }
 
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
@@ -570,8 +577,23 @@ gimp_viewable_invalidate_preview (GimpViewable *viewable)
 void
 gimp_viewable_size_changed (GimpViewable *viewable)
 {
+  GimpAttributes *attributes = NULL;
+  gint width, height;
+
   g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
 
+  gimp_viewable_get_size (viewable, &width, &height);
+
+  attributes = gimp_viewable_get_attributes (viewable);
+
+  if (attributes)
+    {
+      gimp_attributes_set_pixel_size (attributes,
+                                      width,
+                                      height);
+
+    }
+
   g_signal_emit (viewable, viewable_signals[SIZE_CHANGED], 0);
 }
 
@@ -1301,6 +1323,30 @@ gimp_viewable_set_expanded (GimpViewable *viewable,
     GIMP_VIEWABLE_GET_CLASS (viewable)->set_expanded (viewable, expanded);
 }
 
+void 
+gimp_viewable_set_attributes (GimpViewable   *viewable,
+                              GimpAttributes *attributes)
+{
+  g_return_if_fail (GIMP_IS_VIEWABLE (viewable));
+
+  if (attributes)
+    {
+      if (viewable->attributes)
+        g_object_unref (viewable->attributes);
+
+      viewable->attributes = attributes;
+      g_object_ref (viewable->attributes);
+    }
+}
+
+GimpAttributes *
+gimp_viewable_get_attributes (GimpViewable  *viewable)
+{
+  g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), NULL);
+
+  return viewable->attributes;
+}
+
 gboolean
 gimp_viewable_is_ancestor (GimpViewable *ancestor,
                            GimpViewable *descendant)

app/core/gimpviewable.h

@@ -43,7 +43,8 @@ typedef struct _GimpViewableClass GimpViewableClass;
 
 struct _GimpViewable
 {
-  GimpObject  parent_instance;
+  GimpObject       parent_instance;
+  GimpAttributes  *attributes;
 };
 
 struct _GimpViewableClass
@@ -97,6 +98,7 @@ struct _GimpViewableClass
   void            (* set_expanded)       (GimpViewable  *viewable,
                                           gboolean       expand);
   gboolean        (* get_expanded)       (GimpViewable  *viewable);
+
 };
 
 
@@ -179,7 +181,10 @@ GimpContainer * gimp_viewable_get_children       (GimpViewable  *viewable);
 gboolean        gimp_viewable_get_expanded       (GimpViewable  *viewable);
 void            gimp_viewable_set_expanded       (GimpViewable  *viewable,
                                                   gboolean       expanded);
-
+void            gimp_viewable_set_attributes     (GimpViewable  *viewable,
+                                                  GimpAttributes *attributes);
+GimpAttributes *
+                gimp_viewable_get_attributes     (GimpViewable  *viewable);
 gboolean        gimp_viewable_is_ancestor        (GimpViewable  *ancestor,
                                                   GimpViewable  *descendant);
 

app/core/gimpviewableundo.c

@@ -0,0 +1,175 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimpviewable.h"
+#include "gimpviewableundo.h"
+
+
+enum
+{
+  PROP_0,
+  PROP_VIEWABLE
+};
+
+
+static void   gimp_viewable_undo_constructed  (GObject      *object);
+static void   gimp_viewable_undo_set_property (GObject      *object,
+                                           guint         property_id,
+                                           const GValue *value,
+                                           GParamSpec   *pspec);
+static void   gimp_viewable_undo_get_property (GObject      *object,
+                                           guint         property_id,
+                                           GValue       *value,
+                                           GParamSpec   *pspec);
+
+static void   gimp_viewable_undo_free         (GimpUndo     *undo,
+                                           GimpUndoMode  undo_mode);
+
+
+G_DEFINE_TYPE (GimpViewableUndo, gimp_viewable_undo, GIMP_TYPE_UNDO)
+
+#define parent_class gimp_viewable_undo_parent_class
+
+
+static void
+gimp_viewable_undo_class_init (GimpViewableUndoClass *klass)
+{
+  GObjectClass  *object_class = G_OBJECT_CLASS (klass);
+  GimpUndoClass *undo_class   = GIMP_UNDO_CLASS (klass);
+
+  object_class->constructed  = gimp_viewable_undo_constructed;
+  object_class->set_property = gimp_viewable_undo_set_property;
+  object_class->get_property = gimp_viewable_undo_get_property;
+
+  undo_class->pop            = gimp_viewable_undo_pop;
+  undo_class->free           = gimp_viewable_undo_free;
+
+  g_object_class_install_property (object_class, PROP_VIEWABLE,
+                                   g_param_spec_object ("viewable", NULL, NULL,
+                                                        GIMP_TYPE_VIEWABLE,
+                                                        GIMP_PARAM_READWRITE |
+                                                        G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gimp_viewable_undo_init (GimpViewableUndo *undo)
+{
+}
+
+static void
+gimp_viewable_undo_constructed (GObject *object)
+{
+  GimpViewableUndo *viewable_undo = GIMP_VIEWABLE_UNDO (object);
+
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+
+  g_assert (GIMP_IS_VIEWABLE (viewable_undo->viewable));
+}
+
+static void
+gimp_viewable_undo_set_property (GObject      *object,
+                             guint         property_id,
+                             const GValue *value,
+                             GParamSpec   *pspec)
+{
+  GimpViewableUndo *viewable_undo = GIMP_VIEWABLE_UNDO (object);
+
+  switch (property_id)
+    {
+    case PROP_VIEWABLE:
+      viewable_undo->viewable = g_value_dup_object (value);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_viewable_undo_get_property (GObject    *object,
+                             guint       property_id,
+                             GValue     *value,
+                             GParamSpec *pspec)
+{
+  GimpViewableUndo *viewable_undo = GIMP_VIEWABLE_UNDO (object);
+
+  switch (property_id)
+    {
+    case PROP_VIEWABLE:
+      g_value_set_object (value, viewable_undo->viewable);
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+    }
+}
+
+static void
+gimp_viewable_undo_free (GimpUndo     *undo,
+                     GimpUndoMode  undo_mode)
+{
+  GimpViewableUndo *viewable_undo = GIMP_VIEWABLE_UNDO (undo);
+
+  if (viewable_undo->viewable)
+    {
+      g_object_unref (viewable_undo->viewable);
+      viewable_undo->viewable = NULL;
+    }
+
+  GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}
+
+static void
+gimp_viewable_undo_pop (GimpUndo            *undo,
+                        GimpUndoMode         undo_mode,
+                        GimpUndoAccumulator *accum)
+{
+  GimpViewableUndo *viewable_undo  = GIMP_VIEWABLE_UNDO (undo);
+  GimpViewable     *viewable       = GIMP_VIEWABLE_UNDO (undo)->viewable;
+
+  switch (undo->undo_type)
+    {
+    case GIMP_UNDO_IMAGE_ATTRIBUTES:
+      {
+        GimpAttributes *attributes;
+
+        attributes = gimp_attributes_duplicate (gimp_image_get_attributes (image));
+
+        gimp_image_set_attributes (image, image_undo->attributes, FALSE);
+
+        if (image_undo->attributes)
+          g_object_unref (image_undo->attributes);
+        image_undo->attributes = attributes;
+      }
+      break;
+
+    default:
+      g_assert_not_reached ();
+
+    }
+}

app/core/gimpviewableundo.h

@@ -0,0 +1,51 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_VIEWABLE_UNDO_H__
+#define __GIMP_VIEWABLE_UNDO_H__
+
+
+#include "gimpundo.h"
+
+
+#define GIMP_TYPE_VIEWABLE_UNDO            (gimp_viewable_undo_get_type ())
+#define GIMP_VIEWABLE_UNDO(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_VIEWABLE_UNDO, GimpViewableUndo))
+#define GIMP_VIEWABLE_UNDO_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_VIEWABLE_UNDO, GimpViewableUndoClass))
+#define GIMP_IS_VIEWABLE_UNDO(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_VIEWABLE_UNDO))
+#define GIMP_IS_VIEWABLE_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_VIEWABLE_UNDO))
+#define GIMP_VIEWABLE_UNDO_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_VIEWABLE_UNDO, GimpViewableUndoClass))
+
+
+typedef struct _GimpViewableUndoClass GimpViewableUndoClass;
+
+struct _GimpViewableUndo
+{
+  GimpUndo  parent_instance;
+
+  GimpViewable *viewable;  /* the viewable this undo is for */
+};
+
+struct _GimpViewableUndoClass
+{
+  GimpUndoClass  parent_class;
+};
+
+
+GType   gimp_viewable_undo_get_type (void) G_GNUC_CONST;
+
+
+#endif /* __GIMP_VIEWABLE_UNDO_H__ */

app/main.c

@@ -442,6 +442,7 @@ main (int    argc,
 
   basename = g_path_get_basename (argv[0]);
   g_set_prgname (basename);
+  g_setenv ("GIMP_PROG_BASENAME", basename, TRUE);
   g_free (basename);
 
   /* Check argv[] for "--verbose" first */

app/pdb/image-cmds.c

@@ -1487,66 +1487,66 @@ image_set_colormap_invoker (GimpProcedure         *procedure,
 }
 
 static GimpValueArray *
-image_get_metadata_invoker (GimpProcedure         *procedure,
-                            Gimp                  *gimp,
-                            GimpContext           *context,
-                            GimpProgress          *progress,
-                            const GimpValueArray  *args,
-                            GError               **error)
+image_set_attributes_invoker (GimpProcedure         *procedure,
+                              Gimp                  *gimp,
+                              GimpContext           *context,
+                              GimpProgress          *progress,
+                              const GimpValueArray  *args,
+                              GError               **error)
+{
+  gboolean success = TRUE;
+  GimpImage *image;
+  const gchar *attributes_string;
+
+  image = gimp_value_get_image (gimp_value_array_index (args, 0), gimp);
+  attributes_string = g_value_get_string (gimp_value_array_index (args, 1));
+
+  if (success)
+    {
+      GimpAttributes *attributes = gimp_attributes_deserialize (attributes_string);
+
+      gimp_image_set_attributes (image, attributes, TRUE);
+
+      if (attributes)
+        g_object_unref (attributes);
+    }
+
+  return gimp_procedure_get_return_values (procedure, success,
+                                           error ? *error : NULL);
+}
+
+static GimpValueArray *
+image_get_attributes_invoker (GimpProcedure         *procedure,
+                              Gimp                  *gimp,
+                              GimpContext           *context,
+                              GimpProgress          *progress,
+                              const GimpValueArray  *args,
+                              GError               **error)
 {
   gboolean success = TRUE;
   GimpValueArray *return_vals;
   GimpImage *image;
-  gchar *metadata_string = NULL;
+  gchar *attributes_string = NULL;
 
   image = gimp_value_get_image (gimp_value_array_index (args, 0), gimp);
 
   if (success)
     {
-      GimpMetadata *metadata = gimp_image_get_metadata (image);
+      GimpAttributes *attributes = gimp_image_get_attributes (image);
 
-      if (metadata)
-        metadata_string = gimp_metadata_serialize (metadata);
+      if (attributes)
+        attributes_string = gimp_attributes_serialize (attributes);
     }
 
   return_vals = gimp_procedure_get_return_values (procedure, success,
                                                   error ? *error : NULL);
 
   if (success)
-    g_value_take_string (gimp_value_array_index (return_vals, 1), metadata_string);
+    g_value_take_string (gimp_value_array_index (return_vals, 1), attributes_string);
 
   return return_vals;
 }
 
-static GimpValueArray *
-image_set_metadata_invoker (GimpProcedure         *procedure,
-                            Gimp                  *gimp,
-                            GimpContext           *context,
-                            GimpProgress          *progress,
-                            const GimpValueArray  *args,
-                            GError               **error)
-{
-  gboolean success = TRUE;
-  GimpImage *image;
-  const gchar *metadata_string;
-
-  image = gimp_value_get_image (gimp_value_array_index (args, 0), gimp);
-  metadata_string = g_value_get_string (gimp_value_array_index (args, 1));
-
-  if (success)
-    {
-      GimpMetadata *metadata = gimp_metadata_deserialize (metadata_string);
-
-      gimp_image_set_metadata (image, metadata, TRUE);
-
-      if (metadata)
-        g_object_unref (metadata);
-    }
-
-  return gimp_procedure_get_return_values (procedure, success,
-                                           error ? *error : NULL);
-}
-
 static GimpValueArray *
 image_clean_all_invoker (GimpProcedure         *procedure,
                          Gimp                  *gimp,
@@ -4156,15 +4156,45 @@ register_image_procs (GimpPDB *pdb)
   g_object_unref (procedure);
 
   /*
-   * gimp-image-get-metadata
+   * gimp-image-set-attributes
    */
-  procedure = gimp_procedure_new (image_get_metadata_invoker);
+  procedure = gimp_procedure_new (image_set_attributes_invoker);
   gimp_object_set_static_name (GIMP_OBJECT (procedure),
-                               "gimp-image-get-metadata");
+                               "gimp-image-set-attributes");
   gimp_procedure_set_static_strings (procedure,
-                                     "gimp-image-get-metadata",
-                                     "Returns the image's metadata.",
-                                     "Returns exif/iptc/xmp metadata from the image.",
+                                     "gimp-image-set-attributes",
+                                     "Set the image's attributes.",
+                                     "Sets attributes on the image.",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "1995-1996",
+                                     NULL);
+  gimp_procedure_add_argument (procedure,
+                               gimp_param_spec_image_id ("image",
+                                                         "image",
+                                                         "The image",
+                                                         pdb->gimp, FALSE,
+                                                         GIMP_PARAM_READWRITE));
+  gimp_procedure_add_argument (procedure,
+                               gimp_param_spec_string ("attributes-string",
+                                                       "attributes string",
+                                                       "The attributes as a xml string",
+                                                       FALSE, FALSE, FALSE,
+                                                       NULL,
+                                                       GIMP_PARAM_READWRITE));
+  gimp_pdb_register_procedure (pdb, procedure);
+  g_object_unref (procedure);
+
+  /*
+   * gimp-image-get-attributes
+   */
+  procedure = gimp_procedure_new (image_get_attributes_invoker);
+  gimp_object_set_static_name (GIMP_OBJECT (procedure),
+                               "gimp-image-get-attributes");
+  gimp_procedure_set_static_strings (procedure,
+                                     "gimp-image-get-attributes",
+                                     "Returns the image's attributes.",
+                                     "Returns attributes from the image.",
                                      "Spencer Kimball & Peter Mattis",
                                      "Spencer Kimball & Peter Mattis",
                                      "1995-1996",
@@ -4176,45 +4206,15 @@ register_image_procs (GimpPDB *pdb)
                                                          pdb->gimp, FALSE,
                                                          GIMP_PARAM_READWRITE));
   gimp_procedure_add_return_value (procedure,
-                                   gimp_param_spec_string ("metadata-string",
-                                                           "metadata string",
-                                                           "The exif/ptc/xmp metadata as a string",
+                                   gimp_param_spec_string ("attributes-string",
+                                                           "attributes string",
+                                                           "The attributes as a xml string",
                                                            FALSE, FALSE, FALSE,
                                                            NULL,
                                                            GIMP_PARAM_READWRITE));
   gimp_pdb_register_procedure (pdb, procedure);
   g_object_unref (procedure);
 
-  /*
-   * gimp-image-set-metadata
-   */
-  procedure = gimp_procedure_new (image_set_metadata_invoker);
-  gimp_object_set_static_name (GIMP_OBJECT (procedure),
-                               "gimp-image-set-metadata");
-  gimp_procedure_set_static_strings (procedure,
-                                     "gimp-image-set-metadata",
-                                     "Set the image's metadata.",
-                                     "Sets exif/iptc/xmp metadata on the image.",
-                                     "Spencer Kimball & Peter Mattis",
-                                     "Spencer Kimball & Peter Mattis",
-                                     "1995-1996",
-                                     NULL);
-  gimp_procedure_add_argument (procedure,
-                               gimp_param_spec_image_id ("image",
-                                                         "image",
-                                                         "The image",
-                                                         pdb->gimp, FALSE,
-                                                         GIMP_PARAM_READWRITE));
-  gimp_procedure_add_argument (procedure,
-                               gimp_param_spec_string ("metadata-string",
-                                                       "metadata string",
-                                                       "The exif/ptc/xmp metadata as a string",
-                                                       FALSE, FALSE, FALSE,
-                                                       NULL,
-                                                       GIMP_PARAM_READWRITE));
-  gimp_pdb_register_procedure (pdb, procedure);
-  g_object_unref (procedure);
-
   /*
    * gimp-image-clean-all
    */

app/pdb/internal-procs.c

@@ -28,7 +28,7 @@
 #include "internal-procs.h"
 
 
-/* 802 procedures registered total */
+/* 804 procedures registered total */
 
 void
 internal_procs_init (GimpPDB *pdb)

app/pdb/item-cmds.c

@@ -30,6 +30,7 @@
 #include "pdb-types.h"
 
 #include "core/gimpimage.h"
+#include "core/gimpitem-metadata.h"
 #include "core/gimpitem.h"
 #include "core/gimplayermask.h"
 #include "core/gimplist.h"
@@ -821,6 +822,67 @@ item_set_tattoo_invoker (GimpProcedure         *procedure,
                                            error ? *error : NULL);
 }
 
+static GimpValueArray *
+item_get_attributes_invoker (GimpProcedure         *procedure,
+                             Gimp                  *gimp,
+                             GimpContext           *context,
+                             GimpProgress          *progress,
+                             const GimpValueArray  *args,
+                             GError               **error)
+{
+  gboolean success = TRUE;
+  GimpValueArray *return_vals;
+  GimpItem *item;
+  gchar *attributes_string = NULL;
+
+  item = gimp_value_get_item (gimp_value_array_index (args, 0), gimp);
+
+  if (success)
+    {
+      GimpAttributes *attributes = gimp_item_get_attributes (item);
+
+      if (attributes)
+        attributes_string = gimp_attributes_serialize (attributes);
+    }
+
+  return_vals = gimp_procedure_get_return_values (procedure, success,
+                                                  error ? *error : NULL);
+
+  if (success)
+    g_value_take_string (gimp_value_array_index (return_vals, 1), attributes_string);
+
+  return return_vals;
+}
+
+static GimpValueArray *
+item_set_attributes_invoker (GimpProcedure         *procedure,
+                             Gimp                  *gimp,
+                             GimpContext           *context,
+                             GimpProgress          *progress,
+                             const GimpValueArray  *args,
+                             GError               **error)
+{
+  gboolean success = TRUE;
+  GimpItem *item;
+  const gchar *attributes_string;
+
+  item = gimp_value_get_item (gimp_value_array_index (args, 0), gimp);
+  attributes_string = g_value_get_string (gimp_value_array_index (args, 1));
+
+  if (success)
+    {
+      GimpAttributes *attributes = gimp_attributes_deserialize (attributes_string);
+
+      gimp_item_set_attributes (item, attributes, TRUE);
+
+      if (attributes)
+        g_object_unref (attributes);
+    }
+
+  return gimp_procedure_get_return_values (procedure, success,
+                                           error ? *error : NULL);
+}
+
 static GimpValueArray *
 item_attach_parasite_invoker (GimpProcedure         *procedure,
                               Gimp                  *gimp,
@@ -1730,6 +1792,66 @@ register_item_procs (GimpPDB *pdb)
   gimp_pdb_register_procedure (pdb, procedure);
   g_object_unref (procedure);
 
+  /*
+   * gimp-item-get-attributes
+   */
+  procedure = gimp_procedure_new (item_get_attributes_invoker);
+  gimp_object_set_static_name (GIMP_OBJECT (procedure),
+                               "gimp-item-get-attributes");
+  gimp_procedure_set_static_strings (procedure,
+                                     "gimp-item-get-attributes",
+                                     "Returns the item's attributes.",
+                                     "Returns attributes from the item.",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "1995-1996",
+                                     NULL);
+  gimp_procedure_add_argument (procedure,
+                               gimp_param_spec_item_id ("item",
+                                                        "item",
+                                                        "The item",
+                                                        pdb->gimp, FALSE,
+                                                        GIMP_PARAM_READWRITE));
+  gimp_procedure_add_return_value (procedure,
+                                   gimp_param_spec_string ("attributes-string",
+                                                           "attributes string",
+                                                           "The attributes as a xml string",
+                                                           FALSE, FALSE, FALSE,
+                                                           NULL,
+                                                           GIMP_PARAM_READWRITE));
+  gimp_pdb_register_procedure (pdb, procedure);
+  g_object_unref (procedure);
+
+  /*
+   * gimp-item-set-attributes
+   */
+  procedure = gimp_procedure_new (item_set_attributes_invoker);
+  gimp_object_set_static_name (GIMP_OBJECT (procedure),
+                               "gimp-item-set-attributes");
+  gimp_procedure_set_static_strings (procedure,
+                                     "gimp-item-set-attributes",
+                                     "Set the item's attributes.",
+                                     "Sets attributes on the item.",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "Spencer Kimball & Peter Mattis",
+                                     "1995-1996",
+                                     NULL);
+  gimp_procedure_add_argument (procedure,
+                               gimp_param_spec_item_id ("item",
+                                                        "item",
+                                                        "The item",
+                                                        pdb->gimp, FALSE,
+                                                        GIMP_PARAM_READWRITE));
+  gimp_procedure_add_argument (procedure,
+                               gimp_param_spec_string ("attributes-string",
+                                                       "attributes string",
+                                                       "The attributes as a xml string",
+                                                       FALSE, FALSE, FALSE,
+                                                       NULL,
+                                                       GIMP_PARAM_READWRITE));
+  gimp_pdb_register_procedure (pdb, procedure);
+  g_object_unref (procedure);
+
   /*
    * gimp-item-attach-parasite
    */

app/widgets/gimpsavedialog.c

@@ -270,7 +270,7 @@ gimp_save_dialog_set_image (GimpSaveDialog *dialog,
       tooltip = g_strdup_printf (_("Disables compression to make the XCF "
                                    "file readable by %s and later."),
                                  version_string);
-      if (gimp_image_get_metadata (image))
+      if (gimp_image_get_attributes (image))
         {
           gchar *temp_tooltip;
 

app/xcf/xcf-load.c

@@ -48,6 +48,7 @@
 #include "core/gimpimage-undo.h"
 #include "core/gimpitemstack.h"
 #include "core/gimplayer-floating-selection.h"
+#include "core/gimpitem-metadata.h"
 #include "core/gimplayer-new.h"
 #include "core/gimplayermask.h"
 #include "core/gimpparasitelist.h"
@@ -268,6 +269,31 @@ xcf_load_image (Gimp     *gimp,
       gimp_parasite_list_remove (private->parasites,
                                  gimp_parasite_name (parasite));
     }
+  else
+    {
+
+      /* check for an attributes parasite */
+      parasite = gimp_image_parasite_find (GIMP_IMAGE (image),
+                                           "gimp-image-attributes");
+      if (parasite)
+        {
+          GimpImagePrivate *private = GIMP_IMAGE_GET_PRIVATE (image);
+          GimpAttributes   *attributes;
+          const gchar      *attributes_string;
+
+          attributes_string = (gchar *) gimp_parasite_data (parasite);
+          attributes = gimp_attributes_deserialize (attributes_string);
+
+          if (attributes)
+            {
+              gimp_image_set_attributes (image, attributes, FALSE);
+              g_object_unref (attributes);
+            }
+
+          gimp_parasite_list_remove (private->parasites,
+                                     gimp_parasite_name (parasite));
+        }
+    }
 
   /* migrate the old "exif-data" parasite */
   parasite = gimp_image_parasite_find (GIMP_IMAGE (image),
@@ -284,13 +310,11 @@ xcf_load_image (Gimp     *gimp,
         }
       else
         {
-          GimpMetadata *metadata = gimp_image_get_metadata (image);
-          GError       *my_error = NULL;
+          GimpMetadata   *metadata = NULL;
+          GimpAttributes *attributes = NULL;
+          GError         *my_error = NULL;
 
-          if (metadata)
-            g_object_ref (metadata);
-          else
-            metadata = gimp_metadata_new ();
+          metadata = gimp_metadata_new ();
 
           if (! gimp_metadata_set_from_exif (metadata,
                                              gimp_parasite_data (parasite),
@@ -306,7 +330,12 @@ xcf_load_image (Gimp     *gimp,
             }
           else
             {
-              gimp_image_set_metadata (image, metadata, FALSE);
+              attributes = gimp_attributes_new ();
+              attributes = gimp_attributes_from_metadata (attributes, metadata);
+
+              gimp_image_set_attributes (image, attributes, FALSE);
+
+              g_object_unref (attributes);
             }
 
           g_object_unref (metadata);
@@ -341,13 +370,11 @@ xcf_load_image (Gimp     *gimp,
         }
       else
         {
-          GimpMetadata *metadata = gimp_image_get_metadata (image);
-          GError       *my_error = NULL;
+          GimpMetadata   *metadata = NULL;
+          GimpAttributes *attributes = NULL;
+          GError         *my_error = NULL;
 
-          if (metadata)
-            g_object_ref (metadata);
-          else
-            metadata = gimp_metadata_new ();
+          metadata = gimp_metadata_new ();
 
           if (! gimp_metadata_set_from_xmp (metadata,
                                             (const guint8 *) xmp_data + 10,
@@ -363,7 +390,12 @@ xcf_load_image (Gimp     *gimp,
             }
           else
             {
-              gimp_image_set_metadata (image, metadata, FALSE);
+              attributes = gimp_attributes_new ();
+              attributes = gimp_attributes_from_metadata (attributes, metadata);
+
+              gimp_image_set_attributes (image, attributes, FALSE);
+
+              g_object_unref (attributes);
             }
 
           g_object_unref (metadata);
@@ -1425,25 +1457,26 @@ xcf_load_layer (XcfInfo    *info,
                 GimpImage  *image,
                 GList     **item_path)
 {
-  GimpLayer         *layer;
-  GimpLayerMask     *layer_mask;
-  guint32            hierarchy_offset;
-  guint32            layer_mask_offset;
-  gboolean           apply_mask = TRUE;
-  gboolean           edit_mask  = FALSE;
-  gboolean           show_mask  = FALSE;
-  gboolean           active;
-  gboolean           floating;
-  guint32            group_layer_flags = 0;
-  guint32            text_layer_flags = 0;
-  gint               width;
-  gint               height;
-  gint               type;
-  GimpImageBaseType  base_type;
-  gboolean           has_alpha;
-  const Babl        *format;
-  gboolean           is_fs_drawable;
-  gchar             *name;
+  GimpLayer          *layer;
+  GimpLayerMask      *layer_mask;
+  const GimpParasite *parasite;
+  guint32             hierarchy_offset;
+  guint32             layer_mask_offset;
+  gboolean            apply_mask = TRUE;
+  gboolean            edit_mask  = FALSE;
+  gboolean            show_mask  = FALSE;
+  gboolean            active;
+  gboolean            floating;
+  guint32             group_layer_flags = 0;
+  guint32             text_layer_flags = 0;
+  gint                width;
+  gint                height;
+  gint                type;
+  GimpImageBaseType   base_type;
+  gboolean            has_alpha;
+  const Babl         *format;
+  gboolean            is_fs_drawable;
+  gchar              *name;
 
   /* check and see if this is the drawable the floating selection
    *  is attached to. if it is then we'll do the attachment in our caller.
@@ -1520,6 +1553,29 @@ xcf_load_layer (XcfInfo    *info,
 
   GIMP_LOG (XCF, "layer props loaded");
 
+  parasite = gimp_item_parasite_find (GIMP_ITEM (layer),
+                                       "gimp-item-attributes");
+  if (parasite)
+    {
+      GimpAttributes   *attributes;
+      const gchar      *attributes_string;
+
+      attributes_string = (gchar *) gimp_parasite_data (parasite);
+      attributes = gimp_attributes_deserialize (attributes_string);
+
+      if (attributes)
+        {
+          gimp_item_set_attributes (GIMP_ITEM (layer), attributes, FALSE);
+          g_object_unref (attributes);
+        }
+
+      gimp_item_parasite_detach (GIMP_ITEM (layer),
+                                 "gimp-item-attributes",
+                                 FALSE);
+    }
+
+  GIMP_LOG (XCF, "layer attributes loaded");
+
   xcf_progress_update (info);
 
   /* call the evil text layer hack that might change our layer pointer */
@@ -1609,13 +1665,14 @@ static GimpChannel *
 xcf_load_channel (XcfInfo   *info,
                   GimpImage *image)
 {
-  GimpChannel *channel;
-  guint32      hierarchy_offset;
-  gint         width;
-  gint         height;
-  gboolean     is_fs_drawable;
-  gchar       *name;
-  GimpRGB      color = { 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE };
+  GimpChannel        *channel;
+  const GimpParasite *parasite;
+  guint32             hierarchy_offset;
+  gint                width;
+  gint                height;
+  gboolean            is_fs_drawable;
+  gchar              *name;
+  GimpRGB             color = { 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE };
 
   /* check and see if this is the drawable the floating selection
    *  is attached to. if it is then we'll do the attachment in our caller.
@@ -1640,6 +1697,27 @@ xcf_load_channel (XcfInfo   *info,
   if (!xcf_load_channel_props (info, image, &channel))
     goto error;
 
+  parasite = gimp_item_parasite_find (GIMP_ITEM (channel),
+                                       "gimp-item-attributes");
+  if (parasite)
+    {
+      GimpAttributes   *attributes;
+      const gchar      *attributes_string;
+
+      attributes_string = (gchar *) gimp_parasite_data (parasite);
+      attributes = gimp_attributes_deserialize (attributes_string);
+
+      if (attributes)
+        {
+          gimp_item_set_attributes (GIMP_ITEM (channel), attributes, FALSE);
+          g_object_unref (attributes);
+        }
+
+      gimp_item_parasite_detach (GIMP_ITEM (channel),
+                                 "gimp-item-attributes",
+                                 FALSE);
+    }
+
   xcf_progress_update (info);
 
   /* read the hierarchy and layer mask offsets */

app/xcf/xcf-save.c

@@ -45,6 +45,7 @@
 #include "core/gimpimage-metadata.h"
 #include "core/gimpimage-private.h"
 #include "core/gimpimage-sample-points.h"
+#include "core/gimpitem-metadata.h"
 #include "core/gimplayer.h"
 #include "core/gimplayermask.h"
 #include "core/gimpparasitelist.h"
@@ -337,11 +338,11 @@ xcf_save_image_props (XcfInfo    *info,
                       GimpImage  *image,
                       GError    **error)
 {
-  GimpImagePrivate *private         = GIMP_IMAGE_GET_PRIVATE (image);
-  GimpParasite     *grid_parasite   = NULL;
-  GimpParasite     *meta_parasite   = NULL;
-  GimpParasite     *compat_parasite = NULL;
-  GimpUnit          unit            = gimp_image_get_unit (image);
+  GimpImagePrivate *private             = GIMP_IMAGE_GET_PRIVATE (image);
+  GimpParasite     *grid_parasite       = NULL;
+  GimpParasite     *meta_parasite       = NULL;
+  GimpParasite     *compat_parasite     = NULL;
+  GimpUnit          unit                = gimp_image_get_unit (image);
   gdouble           xres;
   gdouble           yres;
 
@@ -393,6 +394,27 @@ xcf_save_image_props (XcfInfo    *info,
       gimp_parasite_list_add (private->parasites, grid_parasite);
     }
 
+#if 0
+  if (gimp_image_get_attributes (image))
+    {
+      GimpParasite   *attributes_parasite = NULL;
+      GimpAttributes *attributes = gimp_image_get_attributes (image);
+      gchar          *attributes_string;
+
+      attributes_string = gimp_attributes_serialize (attributes);
+
+      if (attributes_string)
+        {
+          attributes_parasite = gimp_parasite_new ("gimp-image-attributes",
+                                                   GIMP_PARASITE_PERSISTENT,
+                                                   strlen (attributes_string) + 1,
+                                                   attributes_string);
+          gimp_parasite_list_add (private->parasites, attributes_parasite);
+          g_free (attributes_string);
+        }
+    }
+#endif
+
   if (gimp_image_get_metadata (image))
     {
       GimpMetadata *metadata = gimp_image_get_metadata (image);
@@ -468,6 +490,25 @@ xcf_save_layer_props (XcfInfo    *info,
   GimpParasiteList *parasites;
   gint              offset_x;
   gint              offset_y;
+  GimpParasite     *attributes_parasite = NULL;
+
+  if (gimp_item_get_attributes (GIMP_ITEM (layer)))
+    {
+      GimpAttributes *attributes = gimp_item_get_attributes (GIMP_ITEM (layer));
+      gchar          *attributes_string;
+
+      attributes_string = gimp_attributes_serialize (attributes);
+
+      if (attributes_string)
+        {
+          attributes_parasite = gimp_parasite_new ("gimp-item-attributes",
+                                                   GIMP_PARASITE_PERSISTENT,
+                                                   strlen (attributes_string) + 1,
+                                                   attributes_string);
+          gimp_item_parasite_attach (GIMP_ITEM (layer), attributes_parasite, FALSE);
+          g_free (attributes_string);
+        }
+    }
 
   if (gimp_viewable_get_children (GIMP_VIEWABLE (layer)))
     xcf_check_error (xcf_save_prop (info, image, PROP_GROUP_ITEM, error));
@@ -581,6 +622,27 @@ xcf_save_channel_props (XcfInfo      *info,
 {
   GimpParasiteList *parasites;
   guchar            col[3];
+  GimpParasite     *attributes_parasite = NULL;
+
+#if 0
+  if (gimp_item_get_attributes (GIMP_ITEM (channel)))
+    {
+      GimpAttributes *attributes = gimp_item_get_attributes (GIMP_ITEM (channel));
+      gchar          *attributes_string;
+
+      attributes_string = gimp_attributes_serialize (attributes);
+
+      if (attributes_string)
+        {
+          attributes_parasite = gimp_parasite_new ("gimp-item-attributes",
+                                                   GIMP_PARASITE_PERSISTENT,
+                                                   strlen (attributes_string) + 1,
+                                                   attributes_string);
+          gimp_item_parasite_attach (GIMP_ITEM (channel), attributes_parasite, FALSE);
+          g_free (attributes_string);
+        }
+    }
+#endif
 
   if (channel == gimp_image_get_active_channel (image))
     xcf_check_error (xcf_save_prop (info, image, PROP_ACTIVE_CHANNEL, error));

configure.ac

@@ -66,7 +66,7 @@ m4_define([pycairo_required_version], [1.0.2])
 m4_define([poppler_required_version], [0.44.0])
 m4_define([poppler_data_required_version], [0.4.7])
 m4_define([libgudev_required_version], [167])
-m4_define([gexiv2_required_version], [0.6.1])
+m4_define([gexiv2_required_version], [0.10.3])
 m4_define([libmypaint_required_version], [1.3.0])
 m4_define([lcms_required_version], [2.7])
 m4_define([libpng_required_version], [1.6.25])
@@ -2429,6 +2429,7 @@ plug-ins/imagemap/images/Makefile
 plug-ins/lighting/Makefile
 plug-ins/lighting/images/Makefile
 plug-ins/map-object/Makefile
+plug-ins/metainfo/Makefile
 plug-ins/pagecurl/Makefile
 plug-ins/print/Makefile
 plug-ins/pygimp/Makefile

icons/Color/24/gimp-image-metadata.svg

@@ -0,0 +1,275 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:osb="http://www.openswatchbook.org/uri/2009/osb"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="24"
+   height="24"
+   viewBox="0 0 24 24"
+   id="svg2"
+   version="1.1"
+   inkscape:version="0.91 r13725"
+   sodipodi:docname="gimp-image-tag 24.svg">
+  <defs
+     id="defs4">
+    <linearGradient
+       id="linearGradient19282"
+       osb:paint="solid"
+       gradientTransform="matrix(1.2178615,0,0,1.043881,378.84797,1794.4958)">
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+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
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+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="2.4076613"
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+      <cc:Work
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+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
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+        <dc:title></dc:title>
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icons/Color/scalable/gimp-image-metadata.svg

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+<svg
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+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
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+       xlink:href="#linearGradient19282-4"
+       id="linearGradient10176"
+       x1="142.0002"
+       y1="386.95001"
+       x2="156.0002"
+       y2="386.95001"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="translate(520.93726,194.66866)" />
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="5.5"
+     inkscape:cx="-7.7272727"
+     inkscape:cy="32"
+     inkscape:current-layer="g4559"
+     showgrid="true"
+     inkscape:document-units="px"
+     inkscape:grid-bbox="true"
+     inkscape:window-width="3440"
+     inkscape:window-height="1377"
+     inkscape:window-x="-8"
+     inkscape:window-y="-8"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata4141">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     id="layer1"
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     transform="translate(0,-48)">
+    <g
+       id="stock"
+       style="display:inline"
+       transform="matrix(0.97282511,0,0,0.98586873,-61.228842,20.979234)"
+       inkscape:export-xdpi="90.773643"
+       inkscape:export-ydpi="90.773643">
+      <g
+         transform="translate(-77.874095,-351.36258)"
+         style="display:inline"
+         id="gimp-image">
+        <rect
+           transform="translate(241.0002,217)"
+           y="162"
+           x="-100"
+           height="16"
+           width="16"
+           id="rect6346"
+           style="fill:none;stroke:none" />
+        <path
+           inkscape:connector-curvature="0"
+           id="rect5882"
+           d="m 142.0002,379.9 0,14.1 14,0 0,-14.1 z m 1,1.1 12,0 0,9 -12,0 z"
+           style="fill:url(#linearGradient10176);fill-opacity:1;stroke:none" />
+        <path
+           inkscape:connector-curvature="0"
+           id="rect10683"
+           transform="translate(241.0002,217)"
+           d="m -97,165 0,7 1,0 c 0,-0.75515 0.671573,-1.375 1.5,-1.375 0.828427,0 1.5,0.61985 1.5,1.375 l 1,0 0,-1.5 c 1.4e-4,-0.98573 -0.7274,-1.47402 -2,-2.0625 0,0 0.02947,3.7e-4 0.25,0 0.40803,0.0835 1.38212,0.3501 1.75,0.59375 -0.09819,-0.35554 -0.14101,-0.89353 -0.4375,-1.34375 C -92.73401,167.23732 -94,166.34375 -94,166.34375 l 0.0625,-0.0312 c 0.05568,-0.0402 0.9453,0.7655 1.25,0.6875 -0.13515,-0.32497 -0.25949,-0.63468 -0.40625,-0.8125 l 0.1875,-0.0312 c 0.35629,0.59147 0.46684,0.72309 0.84375,1.15625 0.12472,0.0571 -0.03108,-0.0423 1.0625,-0.59375 L -91,167 c 0,0 -1.0625,0.30993 -0.75,0.90625 0.22248,0.30573 0.39823,1.01025 0.75,1.09375 0,0 0.85009,-1.22532 1.5,-1.625 0,0 -0.21923,-0.50879 -0.21875,-0.78125 3.7e-4,-0.20918 0.15625,-0.59375 0.15625,-0.59375 0.02319,0.39561 -0.0029,0.83091 0.28125,1.21875 L -88.34375,166 -88,166 c 0,0 -2.25088,2.3886 -2,2.78125 0.39455,-0.048 2,-0.34375 2,-0.34375 l 0,0.0625 c -1.04689,0.34884 -1.67111,0.68872 -2,1.5 l 0,2 3,0 0,-7 z"
+           style="opacity:0.3;fill:url(#linearGradient10174);fill-opacity:1;stroke:none" />
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+    </g>
+    <g
+       transform="matrix(2.1155203,-2.1155203,2.1155203,2.1155203,-559.23734,114.18176)"
+       style="fill:#808080;stroke:#f7ffff;stroke-width:0.1;stroke-miterlimit:4;stroke-dasharray:none;stroke-opacity:1"
+       id="g4559">
+      <path
+         style="fill:#999999;fill-opacity:1;stroke:#f7ffff;stroke-width:0.02462314;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+         d="m 147.26469,118.59655 0.003,-0.85612 0.28162,-0.28362 0.28161,-0.28364 0.28552,0.28107 0.28552,0.28106 -0.003,0.85653 -0.003,0.85653 -0.56735,0.002 -0.56735,0.002 0.003,-0.85612 z"
+         id="path4551"
+         inkscape:connector-curvature="0"
+         inkscape:export-xdpi="90.773643"
+         inkscape:export-ydpi="90.773643" />
+      <circle
+         style="fill:#ffffff;fill-opacity:1;stroke:#f7ffff;stroke-width:0.02462349;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+         id="path4557"
+         cx="148.27634"
+         cy="118.23177"
+         r="0.14285833"
+         inkscape:export-xdpi="90.773643"
+         inkscape:export-ydpi="90.773643"
+         transform="matrix(0.99999277,-0.00380225,-0.00380225,0.99999277,0,0)" />
+    </g>
+  </g>
+  <g
+     inkscape:groupmode="layer"
+     id="layer2"
+     inkscape:label="Layer 2"
+     transform="translate(0,-48)" />
+</svg>

icons/icon-list.mk

@@ -142,6 +142,7 @@ scalable_images = \
 	scalable/gimp-histogram.svg			\
 	scalable/gimp-images.svg			\
 	scalable/gimp-image.svg				\
+	scalable/gimp-image-metadata.svg		\
 	scalable/gimp-image-open.svg			\
 	scalable/gimp-image-reload.svg			\
 	scalable/gimp-info.svg				\
@@ -353,6 +354,7 @@ vector24_images = \
 	24/gimp-grid.svg				\
 	24/gimp-histogram.svg				\
 	24/gimp-image.svg				\
+	24/gimp-image-metadata.svg				\
 	24/gimp-images.svg				\
 	24/gimp-info.svg				\
 	24/gimp-landscape.svg				\
@@ -605,6 +607,7 @@ icons16_images = \
 	16/gimp-histogram-logarithmic.png			\
 	16/gimp-histogram.png						\
 	16/gimp-image.png							\
+	16/gimp-image-metadata.png					\
 	16/gimp-images.png							\
 	16/gimp-image-open.png						\
 	16/gimp-image-reload.png					\
@@ -861,6 +864,7 @@ icons24_images = \
 	24/gimp-hchain.png			\
 	24/gimp-hfill.png			\
 	24/gimp-image.png			\
+	24/gimp-image-metadata.png		\
 	24/gimp-images.png			\
 	24/gimp-info.png			\
 	24/gimp-layer-mask.png			\
@@ -970,6 +974,7 @@ icons48_images = \
 	48/gimp-channel.png			\
 	48/gimp-floating-selection.png		\
 	48/gimp-image.png			\
+	48/gimp-image-metadata.png			\
 	48/gimp-layer-mask.png			\
 	48/gimp-layer.png			\
 	48/gimp-prefs-color-management.png	\

libgimp/Makefile.am

@@ -222,6 +222,8 @@ libgimp_sources = \
 	gimpimage.h		\
 	gimpimagecolorprofile.c	\
 	gimpimagecolorprofile.h	\
+	gimpitem.c		\
+	gimpitem.h		\
 	gimplayer.c		\
 	gimplayer.h		\
 	gimppalette.c		\
@@ -345,6 +347,7 @@ gimpinclude_HEADERS = \
 	gimpgradientselect.h		\
 	gimpimage.h			\
 	gimpimagecolorprofile.h		\
+	gimpitem.h			\
 	gimplayer.h			\
 	gimppalette.h			\
 	gimppalettes.h			\

libgimp/gimp.def

@@ -425,6 +425,7 @@ EXPORTS
 	gimp_image_get_active_drawable
 	gimp_image_get_active_layer
 	gimp_image_get_active_vectors
+	gimp_image_get_attributes
 	gimp_image_get_channel_by_name
 	gimp_image_get_channel_by_tattoo
 	gimp_image_get_channel_position
@@ -524,6 +525,7 @@ EXPORTS
 	gimp_image_set_active_channel
 	gimp_image_set_active_layer
 	gimp_image_set_active_vectors
+	gimp_image_set_attributes
 	gimp_image_set_cmap
 	gimp_image_set_color_profile
 	gimp_image_set_color_profile_from_file
@@ -551,6 +553,7 @@ EXPORTS
 	gimp_item_attach_parasite
 	gimp_item_delete
 	gimp_item_detach_parasite
+	gimp_item_get_attributes
 	gimp_item_get_children
 	gimp_item_get_color_tag
 	gimp_item_get_image
@@ -573,6 +576,7 @@ EXPORTS
 	gimp_item_is_valid
 	gimp_item_is_vectors
 	gimp_item_set_color_tag
+	gimp_item_set_attributes
 	gimp_item_set_linked
 	gimp_item_set_lock_content
 	gimp_item_set_lock_position

libgimp/gimp.h

@@ -46,6 +46,7 @@
 #include <libgimp/gimpgradientselect.h>
 #include <libgimp/gimpimage.h>
 #include <libgimp/gimpimagecolorprofile.h>
+#include <libgimp/gimpitem.h>
 #include <libgimp/gimplayer.h>
 #include <libgimp/gimppalette.h>
 #include <libgimp/gimppalettes.h>

libgimp/gimpimage.c

@@ -99,7 +99,6 @@ gimp_image_get_thumbnail_data (gint32  image_ID,
 
   return image_data;
 }
-
 /**
  * gimp_image_get_metadata:
  * @image_ID: The image.
@@ -115,19 +114,50 @@ gimp_image_get_thumbnail_data (gint32  image_ID,
 GimpMetadata *
 gimp_image_get_metadata (gint32 image_ID)
 {
-  GimpMetadata *metadata = NULL;
-  gchar        *metadata_string;
+  GimpMetadata            *metadata          = NULL;
+  GimpAttributes          *attributes        = NULL;
+  gchar                   *attributes_string = NULL;
 
-  metadata_string = _gimp_image_get_metadata (image_ID);
-  if (metadata_string)
+  metadata = gimp_metadata_new ();
+  attributes_string = _gimp_image_get_attributes (image_ID);
+  if (attributes_string)
     {
-      metadata = gimp_metadata_deserialize (metadata_string);
-      g_free (metadata_string);
+      attributes = gimp_attributes_deserialize (attributes_string);
+      g_free (attributes_string);
+      gimp_attributes_to_metadata (attributes, metadata, "image/any");
     }
 
   return metadata;
 }
 
+/**
+ * gimp_image_get_attributes:
+ * @image_ID: The image.
+ *
+ * Returns the image's attributes.
+ *
+ * Returns attributes from the image.
+ *
+ * Returns: The attributes, or %NULL if there is none.
+ *
+ * Since: 2.10
+ **/
+GimpAttributes *
+gimp_image_get_attributes (gint32 image_ID)
+{
+  GimpAttributes *attributes        = NULL;
+  gchar          *attributes_string = NULL;
+
+  attributes_string = _gimp_image_get_attributes (image_ID);
+  if (attributes_string)
+    {
+      attributes = gimp_attributes_deserialize (attributes_string);
+      g_free (attributes_string);
+    }
+
+  return attributes;
+}
+
 /**
  * gimp_image_set_metadata:
  * @image_ID: The image.
@@ -146,16 +176,49 @@ gboolean
 gimp_image_set_metadata (gint32        image_ID,
                          GimpMetadata *metadata)
 {
-  gchar    *metadata_string = NULL;
+  GimpAttributes *attributes = NULL;
+  gchar    *attributes_string = NULL;
   gboolean  success;
 
-  if (metadata)
-    metadata_string = gimp_metadata_serialize (metadata);
+  attributes = gimp_attributes_from_metadata (attributes, metadata);
+  if (attributes)
+    attributes_string = gimp_attributes_serialize (attributes);
 
-  success = _gimp_image_set_metadata (image_ID, metadata_string);
+  success = _gimp_image_set_attributes (image_ID, attributes_string);
+  if (attributes_string)
+    g_free (attributes_string);
 
-  if (metadata_string)
-    g_free (metadata_string);
+  return success;
+}
+
+/**
+ * gimp_image_set_attributes:
+ * @image_ID: The image.
+ * @metadata: The GimpAttributes object.
+ *
+ * Set the image's attributes.
+ *
+ * Sets attributes on the image, or deletes it if
+ * @attributes is %NULL.
+ *
+ * Returns: TRUE on success.
+ *
+ * Since: 2.10
+ **/
+gboolean
+gimp_image_set_attributes (gint32          image_ID,
+                           GimpAttributes *attributes)
+{
+  gchar    *attributes_string = NULL;
+  gboolean  success;
+
+  if (attributes)
+    attributes_string = gimp_attributes_serialize (attributes);
+
+  success = _gimp_image_set_attributes (image_ID, attributes_string);
+
+  if (attributes_string)
+    g_free (attributes_string);
 
   return success;
 }

libgimp/gimpimage.h

@@ -45,6 +45,11 @@ GimpMetadata * gimp_image_get_metadata            (gint32              image_ID)
 gboolean       gimp_image_set_metadata            (gint32              image_ID,
                                                    GimpMetadata       *metadata);
                                                    
+
+gboolean       gimp_image_set_attributes          (gint32              image_ID,
+                                                   GimpAttributes     *attributes);
+GimpAttributes *gimp_image_get_attributes         (gint32              image_ID);
+
 GIMP_DEPRECATED_FOR(gimp_image_get_colormap)
 guchar       * gimp_image_get_cmap                (gint32              image_ID,
                                                    gint               *num_colors);

libgimp/gimpimage_pdb.c

@@ -1532,58 +1532,28 @@ _gimp_image_set_colormap (gint32        image_ID,
 }
 
 /**
- * _gimp_image_get_metadata:
+ * _gimp_image_set_attributes:
  * @image_ID: The image.
+ * @attributes_string: The attributes as a xml string.
  *
- * Returns the image's metadata.
+ * Set the image's attributes.
  *
- * Returns exif/iptc/xmp metadata from the image.
- *
- * Returns: The exif/ptc/xmp metadata as a string.
- **/
-gchar *
-_gimp_image_get_metadata (gint32 image_ID)
-{
-  GimpParam *return_vals;
-  gint nreturn_vals;
-  gchar *metadata_string = NULL;
-
-  return_vals = gimp_run_procedure ("gimp-image-get-metadata",
-                                    &nreturn_vals,
-                                    GIMP_PDB_IMAGE, image_ID,
-                                    GIMP_PDB_END);
-
-  if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
-    metadata_string = g_strdup (return_vals[1].data.d_string);
-
-  gimp_destroy_params (return_vals, nreturn_vals);
-
-  return metadata_string;
-}
-
-/**
- * _gimp_image_set_metadata:
- * @image_ID: The image.
- * @metadata_string: The exif/ptc/xmp metadata as a string.
- *
- * Set the image's metadata.
- *
- * Sets exif/iptc/xmp metadata on the image.
+ * Sets attributes on the image.
  *
  * Returns: TRUE on success.
  **/
 gboolean
-_gimp_image_set_metadata (gint32       image_ID,
-                          const gchar *metadata_string)
+_gimp_image_set_attributes (gint32       image_ID,
+                            const gchar *attributes_string)
 {
   GimpParam *return_vals;
   gint nreturn_vals;
   gboolean success = TRUE;
 
-  return_vals = gimp_run_procedure ("gimp-image-set-metadata",
+  return_vals = gimp_run_procedure ("gimp-image-set-attributes",
                                     &nreturn_vals,
                                     GIMP_PDB_IMAGE, image_ID,
-                                    GIMP_PDB_STRING, metadata_string,
+                                    GIMP_PDB_STRING, attributes_string,
                                     GIMP_PDB_END);
 
   success = return_vals[0].data.d_status == GIMP_PDB_SUCCESS;
@@ -1593,6 +1563,36 @@ _gimp_image_set_metadata (gint32       image_ID,
   return success;
 }
 
+/**
+ * _gimp_image_get_attributes:
+ * @image_ID: The image.
+ *
+ * Returns the image's attributes.
+ *
+ * Returns attributes from the image.
+ *
+ * Returns: The attributes as a xml string.
+ **/
+gchar *
+_gimp_image_get_attributes (gint32 image_ID)
+{
+  GimpParam *return_vals;
+  gint nreturn_vals;
+  gchar *attributes_string = NULL;
+
+  return_vals = gimp_run_procedure ("gimp-image-get-attributes",
+                                    &nreturn_vals,
+                                    GIMP_PDB_IMAGE, image_ID,
+                                    GIMP_PDB_END);
+
+  if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
+    attributes_string = g_strdup (return_vals[1].data.d_string);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+
+  return attributes_string;
+}
+
 /**
  * gimp_image_clean_all:
  * @image_ID: The image.

libgimp/gimpimage_pdb.h

@@ -125,9 +125,9 @@ G_GNUC_INTERNAL guint8*  _gimp_image_get_colormap            (gint32
 G_GNUC_INTERNAL gboolean _gimp_image_set_colormap            (gint32               image_ID,
                                                               gint                 num_bytes,
                                                               const guint8        *colormap);
-G_GNUC_INTERNAL gchar*   _gimp_image_get_metadata            (gint32               image_ID);
-G_GNUC_INTERNAL gboolean _gimp_image_set_metadata            (gint32               image_ID,
-                                                              const gchar         *metadata_string);
+G_GNUC_INTERNAL gboolean _gimp_image_set_attributes          (gint32               image_ID,
+                                                              const gchar         *attributes_string);
+G_GNUC_INTERNAL gchar*   _gimp_image_get_attributes          (gint32               image_ID);
 gboolean                 gimp_image_clean_all                (gint32               image_ID);
 gboolean                 gimp_image_is_dirty                 (gint32               image_ID);
 G_GNUC_INTERNAL gboolean _gimp_image_thumbnail               (gint32               image_ID,

libgimp/gimpimagemetadata.c

@@ -28,6 +28,7 @@
 #include "gimp.h"
 #include "gimpui.h"
 #include "gimpimagemetadata.h"
+#include "libgimpbase/gimpbase.h"
 
 #include "libgimp-intl.h"
 
@@ -44,7 +45,6 @@ static gboolean    gimp_image_metadata_rotate_dialog (gint32             image_I
                                                       GExiv2Orientation  orientation,
                                                       const gchar       *parasite_name);
 
-
 /*  public functions  */
 
 /**
@@ -122,81 +122,90 @@ gimp_image_metadata_load_prepare (gint32        image_ID,
  */
 void
 gimp_image_metadata_load_finish (gint32                 image_ID,
+                                 gint32                 layer_ID,
                                  const gchar           *mime_type,
                                  GimpMetadata          *metadata,
                                  GimpMetadataLoadFlags  flags,
                                  gboolean               interactive)
 {
+  GimpAttributes *attributes = NULL;
+
   g_return_if_fail (image_ID > 0);
   g_return_if_fail (mime_type != NULL);
   g_return_if_fail (GEXIV2_IS_METADATA (metadata));
 
-  if (flags & GIMP_METADATA_LOAD_COMMENT)
-    {
-      gchar *comment;
-
-      comment = gexiv2_metadata_get_tag_interpreted_string (metadata,
-                                                            "Exif.Photo.UserComment");
-      if (! comment)
-        comment = gexiv2_metadata_get_tag_interpreted_string (metadata,
-                                                              "Exif.Image.ImageDescription");
-
-      if (comment)
-        {
-          GimpParasite *parasite;
-
-          parasite = gimp_parasite_new ("gimp-comment",
-                                        GIMP_PARASITE_PERSISTENT,
-                                        strlen (comment) + 1,
-                                        comment);
-          g_free (comment);
-
-          gimp_image_attach_parasite (image_ID, parasite);
-          gimp_parasite_free (parasite);
-        }
-    }
-
-  if (flags & GIMP_METADATA_LOAD_RESOLUTION)
-    {
-      gdouble   xres;
-      gdouble   yres;
-      GimpUnit  unit;
-
-      if (gimp_metadata_get_resolution (metadata, &xres, &yres, &unit))
-        {
-          gimp_image_set_resolution (image_ID, xres, yres);
-          gimp_image_set_unit (image_ID, unit);
-        }
-    }
-
   if (flags & GIMP_METADATA_LOAD_ORIENTATION)
     {
       gimp_image_metadata_rotate_query (image_ID, mime_type,
                                         metadata, interactive);
     }
 
+  attributes = gimp_attributes_from_metadata (attributes, metadata);
+
+  if (attributes)
+    {
+      if (flags & GIMP_METADATA_LOAD_COMMENT)
+        {
+          GimpAttribute *attribute = NULL;
+          gchar         *comment   = NULL;
+
+          attribute = gimp_attributes_get_attribute (attributes, "Exif.Photo.UserComment");
+          if (attribute)
+            comment = gimp_attribute_get_string (attribute);
+          else
+            {
+              attribute = gimp_attributes_get_attribute (attributes, "Exif.Image.ImageDescription");
+              if (attribute)
+                comment = gimp_attribute_get_string (attribute);
+            }
+
+          if (comment)
+            {
+              GimpParasite *parasite;
+
+              parasite = gimp_parasite_new ("gimp-comment",
+                                            GIMP_PARASITE_PERSISTENT,
+                                            strlen (comment) + 1,
+                                            comment);
+              g_free (comment);
+
+              gimp_image_attach_parasite (image_ID, parasite);
+              gimp_parasite_free (parasite);
+            }
+        }
+      if (flags & GIMP_METADATA_LOAD_RESOLUTION)
+        {
+          gdouble   xres;
+          gdouble   yres;
+          GimpUnit  unit;
+
+          if (gimp_attributes_get_resolution (attributes, &xres, &yres, &unit))
+            {
+              gimp_image_set_resolution (image_ID, xres, yres);
+              gimp_image_set_unit (image_ID, unit);
+            }
+        }
+    }
+
   if (flags & GIMP_METADATA_LOAD_COLORSPACE)
     {
       GimpColorProfile *profile = gimp_image_get_color_profile (image_ID);
 
-      /* only look for colorspace information from metadata if the
-       * image didn't contain an embedded color profile
-       */
       if (! profile)
         {
-          GimpMetadataColorspace colorspace;
+          GimpAttributesColorspace colorspace;
 
-          colorspace = gimp_metadata_get_colorspace (metadata);
+          colorspace = gimp_attributes_get_colorspace (attributes);
 
           switch (colorspace)
             {
-            case GIMP_METADATA_COLORSPACE_UNSPECIFIED:
-            case GIMP_METADATA_COLORSPACE_UNCALIBRATED:
-            case GIMP_METADATA_COLORSPACE_SRGB:
+            case GIMP_ATTRIBUTES_COLORSPACE_UNSPECIFIED:
+            case GIMP_ATTRIBUTES_COLORSPACE_UNCALIBRATED:
+            case GIMP_ATTRIBUTES_COLORSPACE_SRGB:
               /* use sRGB, a NULL profile will do the right thing  */
               break;
 
-            case GIMP_METADATA_COLORSPACE_ADOBERGB:
+            case GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB:
               profile = gimp_color_profile_new_rgb_adobe ();
               break;
             }
@@ -209,7 +218,13 @@ gimp_image_metadata_load_finish (gint32                 image_ID,
         g_object_unref (profile);
     }
 
-  gimp_image_set_metadata (image_ID, metadata);
+    gimp_image_set_attributes (image_ID, attributes);
+    if (layer_ID > 0)
+      {
+        gimp_item_set_attributes (layer_ID, attributes);
+      }
+
+    g_object_unref (attributes);
 }
 
 /**
@@ -219,7 +234,7 @@ gimp_image_metadata_load_finish (gint32                 image_ID,
  * @suggested_flags: Suggested default values for the @flags passed to
  *                   gimp_image_metadata_save_finish()
  *
- * Gets the image metadata for saving it using
+ * Gets the image attributes for saving using
  * gimp_image_metadata_save_finish().
  *
  * The @suggested_flags are determined from what kind of metadata
@@ -227,7 +242,7 @@ gimp_image_metadata_load_finish (gint32                 image_ID,
  * value for GIMP_METADATA_SAVE_THUMBNAIL is determined by whether
  * there was a thumbnail in the previously imported image.
  *
- * Returns: The image's metadata, prepared for saving.
+ * Returns: The image's attributes, prepared for saving.
  *
  * Since: 2.10
  */
@@ -236,7 +251,8 @@ gimp_image_metadata_save_prepare (gint32                 image_ID,
                                   const gchar           *mime_type,
                                   GimpMetadataSaveFlags *suggested_flags)
 {
-  GimpMetadata *metadata;
+  GimpAttributes *attributes = NULL;
+  GimpMetadata   *metadata   = NULL;
 
   g_return_val_if_fail (image_ID > 0, NULL);
   g_return_val_if_fail (mime_type != NULL, NULL);
@@ -244,133 +260,35 @@ gimp_image_metadata_save_prepare (gint32                 image_ID,
 
   *suggested_flags = GIMP_METADATA_SAVE_ALL;
 
-  metadata = gimp_image_get_metadata (image_ID);
+  attributes = gimp_image_get_attributes (image_ID);
+  metadata = gimp_metadata_new ();
 
-  if (metadata)
+  if (attributes)
     {
-      GDateTime          *datetime;
-      const GimpParasite *comment_parasite;
-      const gchar        *comment = NULL;
-      gint                image_width;
-      gint                image_height;
-      gdouble             xres;
-      gdouble             yres;
-      gchar               buffer[32];
-
-      image_width  = gimp_image_width  (image_ID);
-      image_height = gimp_image_height (image_ID);
-
-      datetime = g_date_time_new_now_local ();
-
-      comment_parasite = gimp_image_get_parasite (image_ID, "gimp-comment");
-      if (comment_parasite)
-        comment = gimp_parasite_data (comment_parasite);
-
       /* Exif */
 
-      if (! gexiv2_metadata_has_exif (metadata))
+      if (! gimp_attributes_has_tag_type (attributes, TAG_EXIF))
         *suggested_flags &= ~GIMP_METADATA_SAVE_EXIF;
 
-      if (comment)
-        {
-          gexiv2_metadata_set_tag_string (metadata,
-                                          "Exif.Photo.UserComment",
-                                          comment);
-          gexiv2_metadata_set_tag_string (metadata,
-                                          "Exif.Image.ImageDescription",
-                                          comment);
-        }
-
-      g_snprintf (buffer, sizeof (buffer),
-                  "%d:%02d:%02d %02d:%02d:%02d",
-                  g_date_time_get_year (datetime),
-                  g_date_time_get_month (datetime),
-                  g_date_time_get_day_of_month (datetime),
-                  g_date_time_get_hour (datetime),
-                  g_date_time_get_minute (datetime),
-                  g_date_time_get_second (datetime));
-      gexiv2_metadata_set_tag_string (metadata,
-                                      "Exif.Image.DateTime",
-                                      buffer);
-
-      gexiv2_metadata_set_tag_string (metadata,
-                                      "Exif.Image.Software",
-                                      PACKAGE_STRING);
-
-      gimp_metadata_set_pixel_size (metadata,
-                                    image_width, image_height);
-
-      gimp_image_get_resolution (image_ID, &xres, &yres);
-      gimp_metadata_set_resolution (metadata, xres, yres,
-                                    gimp_image_get_unit (image_ID));
 
       /* XMP */
 
-      if (! gexiv2_metadata_has_xmp (metadata))
+      if (! gimp_attributes_has_tag_type (attributes, TAG_XMP))
         *suggested_flags &= ~GIMP_METADATA_SAVE_XMP;
 
-      gexiv2_metadata_set_tag_string (metadata,
-                                      "Xmp.dc.Format",
-                                      mime_type);
-
-      if (! g_strcmp0 (mime_type, "image/tiff"))
-        {
-          /* TIFF specific XMP data */
-
-          g_snprintf (buffer, sizeof (buffer), "%d", image_width);
-          gexiv2_metadata_set_tag_string (metadata,
-                                          "Xmp.tiff.ImageWidth",
-                                          buffer);
-
-          g_snprintf (buffer, sizeof (buffer), "%d", image_height);
-          gexiv2_metadata_set_tag_string (metadata,
-                                          "Xmp.tiff.ImageLength",
-                                          buffer);
-
-          g_snprintf (buffer, sizeof (buffer),
-                      "%d:%02d:%02d %02d:%02d:%02d",
-                      g_date_time_get_year (datetime),
-                      g_date_time_get_month (datetime),
-                      g_date_time_get_day_of_month (datetime),
-                      g_date_time_get_hour (datetime),
-                      g_date_time_get_minute (datetime),
-                      g_date_time_get_second (datetime));
-          gexiv2_metadata_set_tag_string (metadata,
-                                          "Xmp.tiff.DateTime",
-                                          buffer);
-        }
 
       /* IPTC */
 
-      if (! gexiv2_metadata_has_iptc (metadata))
+      if (! gimp_attributes_has_tag_type (attributes, TAG_IPTC))
         *suggested_flags &= ~GIMP_METADATA_SAVE_IPTC;
 
-      g_snprintf (buffer, sizeof (buffer),
-                  "%d-%d-%d",
-                  g_date_time_get_year (datetime),
-                  g_date_time_get_month (datetime),
-                  g_date_time_get_day_of_month (datetime));
-      gexiv2_metadata_set_tag_string (metadata,
-                                      "Iptc.Application2.DateCreated",
-                                      buffer);
-
-      g_snprintf (buffer, sizeof (buffer),
-                  "%02d:%02d:%02d-%02d:%02d",
-                  g_date_time_get_hour (datetime),
-                  g_date_time_get_minute (datetime),
-                  g_date_time_get_second (datetime),
-                  g_date_time_get_hour (datetime),
-                  g_date_time_get_minute (datetime));
-      gexiv2_metadata_set_tag_string (metadata,
-                                      "Iptc.Application2.TimeCreated",
-                                      buffer);
-
-      g_date_time_unref (datetime);
 
       /* Thumbnail */
 
       if (FALSE /* FIXME if (original image had a thumbnail) */)
         *suggested_flags &= ~GIMP_METADATA_SAVE_THUMBNAIL;
+        
+        gimp_attributes_to_metadata (attributes, metadata, mime_type);
     }
 
   return metadata;
@@ -402,93 +320,162 @@ gimp_image_metadata_save_finish (gint32                  image_ID,
                                  GError                **error)
 {
   GExiv2Metadata *new_metadata;
-  gboolean        support_exif;
-  gboolean        support_xmp;
-  gboolean        support_iptc;
-  gchar          *value;
-  gboolean        success = FALSE;
-  gint            i;
+  GimpAttributes *attributes = NULL;
+  gboolean            success = FALSE;
+  gchar               buffer[32];
+  GDateTime          *datetime;
+  const GimpParasite *comment_parasite;
+  const gchar        *comment = NULL;
+  gint                image_width;
+  gint                image_height;
+  gdouble             xres;
+  gdouble             yres;
 
   g_return_val_if_fail (image_ID > 0, FALSE);
   g_return_val_if_fail (mime_type != NULL, FALSE);
-  g_return_val_if_fail (GEXIV2_IS_METADATA (metadata), FALSE);
   g_return_val_if_fail (G_IS_FILE (file), FALSE);
   g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
 
+  attributes = gimp_attributes_from_metadata (attributes, metadata);
+
   if (! (flags & (GIMP_METADATA_SAVE_EXIF |
                   GIMP_METADATA_SAVE_XMP  |
                   GIMP_METADATA_SAVE_IPTC |
                   GIMP_METADATA_SAVE_THUMBNAIL)))
     return TRUE;
 
+  image_width  = gimp_image_width  (image_ID);
+  image_height = gimp_image_height (image_ID);
+
+  datetime = g_date_time_new_now_local ();
+
+  comment_parasite = gimp_image_get_parasite (image_ID, "gimp-comment");
+  if (comment_parasite)
+    comment = gimp_parasite_data (comment_parasite);
+
   /* read metadata from saved file */
   new_metadata = gimp_metadata_load_from_file (file, error);
 
   if (! new_metadata)
     return FALSE;
 
-  support_exif = gexiv2_metadata_get_supports_exif (new_metadata);
-  support_xmp  = gexiv2_metadata_get_supports_xmp  (new_metadata);
-  support_iptc = gexiv2_metadata_get_supports_iptc (new_metadata);
+  /* Exif */
 
-  if ((flags & GIMP_METADATA_SAVE_EXIF) && support_exif)
+  if (flags & GIMP_METADATA_SAVE_EXIF)
     {
-      gchar **exif_data = gexiv2_metadata_get_exif_tags (metadata);
 
-      for (i = 0; exif_data[i] != NULL; i++)
+      if (comment)
         {
-          if (! gexiv2_metadata_has_tag (new_metadata, exif_data[i]) &&
-              gimp_metadata_is_tag_supported (exif_data[i], mime_type))
-            {
-              value = gexiv2_metadata_get_tag_string (metadata, exif_data[i]);
-              gexiv2_metadata_set_tag_string (new_metadata, exif_data[i],
-                                              value);
-              g_free (value);
-            }
+          gimp_attributes_new_attribute (attributes,
+                                         "Exif.Photo.UserComment",
+                                         (gchar *) comment,
+                                         TYPE_UNICODE);
+          gimp_attributes_new_attribute (attributes,
+                                         "Exif.Image.ImageDescription",
+                                         (gchar *) comment,
+                                         TYPE_ASCII);
         }
 
-      g_strfreev (exif_data);
+      g_snprintf (buffer, sizeof (buffer),
+                  "%d:%02d:%02d %02d:%02d:%02d",
+                  g_date_time_get_year (datetime),
+                  g_date_time_get_month (datetime),
+                  g_date_time_get_day_of_month (datetime),
+                  g_date_time_get_hour (datetime),
+                  g_date_time_get_minute (datetime),
+                  g_date_time_get_second (datetime));
+      gimp_attributes_new_attribute (attributes,
+                                     "Exif.Image.DateTime",
+                                     buffer,
+                                     TYPE_ASCII);
+
+      gimp_attributes_new_attribute (attributes,
+                                     "Exif.Image.Software",
+                                     PACKAGE_STRING,
+                                     TYPE_ASCII);
+
+      gimp_attributes_set_pixel_size (attributes,
+                                      image_width, image_height);
+
+      gimp_image_get_resolution (image_ID, &xres, &yres);
+      gimp_attributes_set_resolution (attributes, xres, yres,
+                                      gimp_image_get_unit (image_ID));
     }
 
-  if ((flags & GIMP_METADATA_SAVE_XMP) && support_xmp)
+  /* XMP */
+
+  if (flags & GIMP_METADATA_SAVE_XMP)
     {
-      gchar **xmp_data = gexiv2_metadata_get_xmp_tags (metadata);
+      gimp_attributes_new_attribute (attributes,
+                                     "Xmp.dc.Format",
+                                     (gchar *) mime_type,
+                                     TYPE_ASCII);
 
-      for (i = 0; xmp_data[i] != NULL; i++)
+      if (! g_strcmp0 (mime_type, "image/tiff"))
         {
-          if (! gexiv2_metadata_has_tag (new_metadata, xmp_data[i]) &&
-              gimp_metadata_is_tag_supported (xmp_data[i], mime_type))
-            {
-              value = gexiv2_metadata_get_tag_string (metadata, xmp_data[i]);
-              gexiv2_metadata_set_tag_string (new_metadata, xmp_data[i],
-                                              value);
-              g_free (value);
-            }
-        }
+          /* TIFF specific XMP data */
 
-      g_strfreev (xmp_data);
+          g_snprintf (buffer, sizeof (buffer), "%d", image_width);
+          gimp_attributes_new_attribute (attributes,
+                                         "Xmp.tiff.ImageWidth",
+                                         buffer,
+                                         TYPE_ASCII);
+
+          g_snprintf (buffer, sizeof (buffer), "%d", image_height);
+          gimp_attributes_new_attribute (attributes,
+                                         "Xmp.tiff.ImageLength",
+                                         buffer,
+                                         TYPE_ASCII);
+
+          g_snprintf (buffer, sizeof (buffer),
+                      "%d:%02d:%02d %02d:%02d:%02d",
+                      g_date_time_get_year (datetime),
+                      g_date_time_get_month (datetime),
+                      g_date_time_get_day_of_month (datetime),
+                      g_date_time_get_hour (datetime),
+                      g_date_time_get_minute (datetime),
+                      g_date_time_get_second (datetime));
+          gimp_attributes_new_attribute (attributes,
+                                         "Xmp.tiff.DateTime",
+                                         buffer,
+                                         TYPE_ASCII);
+        }
     }
 
-  if ((flags & GIMP_METADATA_SAVE_IPTC) && support_iptc)
+  /* IPTC */
+
+  if (flags & GIMP_METADATA_SAVE_IPTC)
     {
-      gchar **iptc_data = gexiv2_metadata_get_iptc_tags (metadata);
 
-      for (i = 0; iptc_data[i] != NULL; i++)
-        {
-          if (! gexiv2_metadata_has_tag (new_metadata, iptc_data[i]) &&
-              gimp_metadata_is_tag_supported (iptc_data[i], mime_type))
-            {
-              value = gexiv2_metadata_get_tag_string (metadata, iptc_data[i]);
-              gexiv2_metadata_set_tag_string (new_metadata, iptc_data[i],
-                                              value);
-              g_free (value);
-            }
-        }
+      g_snprintf (buffer, sizeof (buffer),
+                  "%d-%d-%d",
+                  g_date_time_get_year (datetime),
+                  g_date_time_get_month (datetime),
+                  g_date_time_get_day_of_month (datetime));
+      gimp_attributes_new_attribute (attributes,
+                                     "Iptc.Application2.DateCreated",
+                                     buffer,
+                                     TYPE_ASCII);
+
+      g_snprintf (buffer, sizeof (buffer),
+                  "%02d:%02d:%02d",
+                  g_date_time_get_hour (datetime),
+                  g_date_time_get_minute (datetime),
+                  g_date_time_get_second (datetime));
+      gimp_attributes_new_attribute (attributes,
+                                     "Iptc.Application2.TimeCreated",
+                                     buffer,
+                                     TYPE_ASCII);
+
+      g_date_time_unref (datetime);
 
-      g_strfreev (iptc_data);
     }
 
-  if (flags & GIMP_METADATA_SAVE_THUMBNAIL)
+  gimp_attributes_to_metadata (attributes, new_metadata, mime_type);
+
+  /* Thumbnail */
+
+  if ((flags & GIMP_METADATA_SAVE_THUMBNAIL) && g_strcmp0 (mime_type, "image/tiff"))
     {
       GdkPixbuf *thumb_pixbuf;
       gchar     *thumb_buffer;

libgimp/gimpimagemetadata.h

@@ -35,6 +35,7 @@ GimpMetadata * gimp_image_metadata_load_prepare (gint32                 image_ID
                                                  GFile                 *file,
                                                  GError               **error);
 void           gimp_image_metadata_load_finish  (gint32                 image_ID,
+                                                 gint32                 layer_ID,
                                                  const gchar           *mime_type,
                                                  GimpMetadata          *metadata,
                                                  GimpMetadataLoadFlags  flags,

libgimp/gimpitem.c

@@ -0,0 +1,86 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
+ *
+ * gimpitem.c
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gimp.h"
+#include "gimpitem.h"
+
+
+/**
+ * gimp_item_get_attributes:
+ * @item_ID: The item.
+ *
+ * Returns the item's attributes.
+ *
+ * Returns attributes from the item.
+ *
+ * Returns: The attributes, or %NULL if there is none.
+ *
+ * Since: GIMP 2.10
+ **/
+GimpAttributes *
+gimp_item_get_attributes (gint32 item_ID)
+{
+  GimpAttributes *attributes = NULL;
+  gchar          *attributes_string;
+
+  attributes_string = _gimp_item_get_attributes (item_ID);
+  if (attributes_string)
+    {
+      attributes = gimp_attributes_deserialize (attributes_string);
+      g_free (attributes_string);
+    }
+
+  return attributes;
+}
+
+/**
+ * gimp_item_set_attributes:
+ * @item_ID: The item.
+ * @metadata: The GimpAttributes object.
+ *
+ * Set the item's attributes.
+ *
+ * Sets attributes on the item, or deletes it if
+ * @attributes is %NULL.
+ *
+ * Returns: TRUE on success.
+ *
+ * Since: GIMP 2.10
+ **/
+gboolean
+gimp_item_set_attributes (gint32          item_ID,
+                          GimpAttributes *attributes)
+{
+  gchar    *attributes_string = NULL;
+  gboolean  success;
+
+  if (attributes)
+    attributes_string = gimp_attributes_serialize (attributes);
+
+  success = _gimp_item_set_attributes (item_ID, attributes_string);
+
+  if (attributes_string)
+    g_free (attributes_string);
+
+  return success;
+}
+

libgimp/gimpitem.h

@@ -0,0 +1,40 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
+ *
+ * gimpitem.h
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#if !defined (__GIMP_H_INSIDE__) && !defined (GIMP_COMPILATION)
+#error "Only <libgimp/gimp.h> can be included directly."
+#endif
+
+#ifndef __GIMP_ITEM_H__
+#define __GIMP_ITEM_H__
+
+G_BEGIN_DECLS
+
+/* For information look into the C source or the html documentation */
+
+
+gboolean       gimp_item_set_attributes          (gint32              item_ID,
+                                                  GimpAttributes     *attributes);
+GimpAttributes *gimp_item_get_attributes         (gint32              item_ID);
+
+
+G_END_DECLS
+
+#endif /* __GIMP_ITEM_H__ */

libgimp/gimpitem_pdb.c

@@ -934,6 +934,68 @@ gimp_item_set_tattoo (gint32 item_ID,
   return success;
 }
 
+/**
+ * _gimp_item_get_attributes:
+ * @item_ID: The item.
+ *
+ * Returns the item's attributes.
+ *
+ * Returns attributes from the item.
+ *
+ * Returns: The attributes as a xml string.
+ **/
+gchar *
+_gimp_item_get_attributes (gint32 item_ID)
+{
+  GimpParam *return_vals;
+  gint nreturn_vals;
+  gchar *attributes_string = NULL;
+
+  return_vals = gimp_run_procedure ("gimp-item-get-attributes",
+                                    &nreturn_vals,
+                                    GIMP_PDB_ITEM, item_ID,
+                                    GIMP_PDB_END);
+
+  if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
+    attributes_string = g_strdup (return_vals[1].data.d_string);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+
+  return attributes_string;
+}
+
+/**
+ * _gimp_item_set_attributes:
+ * @item_ID: The item.
+ * @attributes_string: The attributes as a xml string.
+ *
+ * Set the item's attributes.
+ *
+ * Sets attributes on the item.
+ *
+ * Returns: TRUE on success.
+ **/
+gboolean
+_gimp_item_set_attributes (gint32       item_ID,
+                           const gchar *attributes_string)
+{
+  GimpParam *return_vals;
+  gint nreturn_vals;
+  gboolean success = TRUE;
+
+  return_vals = gimp_run_procedure ("gimp-item-set-attributes",
+                                    &nreturn_vals,
+                                    GIMP_PDB_ITEM, item_ID,
+                                    GIMP_PDB_STRING, attributes_string,
+                                    GIMP_PDB_END);
+
+  success = return_vals[0].data.d_status == GIMP_PDB_SUCCESS;
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+
+  return success;
+}
+
 /**
  * gimp_item_attach_parasite:
  * @item_ID: The item.

libgimp/gimpitem_pdb.h

@@ -32,49 +32,52 @@ G_BEGIN_DECLS
 /* For information look into the C source or the html documentation */
 
 
-gboolean      gimp_item_is_valid          (gint32              item_ID);
-gint32        gimp_item_get_image         (gint32              item_ID);
-gboolean      gimp_item_delete            (gint32              item_ID);
-gboolean      gimp_item_is_drawable       (gint32              item_ID);
-gboolean      gimp_item_is_layer          (gint32              item_ID);
-gboolean      gimp_item_is_text_layer     (gint32              item_ID);
-gboolean      gimp_item_is_channel        (gint32              item_ID);
-gboolean      gimp_item_is_layer_mask     (gint32              item_ID);
-gboolean      gimp_item_is_selection      (gint32              item_ID);
-gboolean      gimp_item_is_vectors        (gint32              item_ID);
-gboolean      gimp_item_is_group          (gint32              item_ID);
-gint32        gimp_item_get_parent        (gint32              item_ID);
-gint*         gimp_item_get_children      (gint32              item_ID,
-                                           gint               *num_children);
-gchar*        gimp_item_get_name          (gint32              item_ID);
-gboolean      gimp_item_set_name          (gint32              item_ID,
-                                           const gchar        *name);
-gboolean      gimp_item_get_visible       (gint32              item_ID);
-gboolean      gimp_item_set_visible       (gint32              item_ID,
-                                           gboolean            visible);
-gboolean      gimp_item_get_linked        (gint32              item_ID);
-gboolean      gimp_item_set_linked        (gint32              item_ID,
-                                           gboolean            linked);
-gboolean      gimp_item_get_lock_content  (gint32              item_ID);
-gboolean      gimp_item_set_lock_content  (gint32              item_ID,
-                                           gboolean            lock_content);
-gboolean      gimp_item_get_lock_position (gint32              item_ID);
-gboolean      gimp_item_set_lock_position (gint32              item_ID,
-                                           gboolean            lock_position);
-GimpColorTag  gimp_item_get_color_tag     (gint32              item_ID);
-gboolean      gimp_item_set_color_tag     (gint32              item_ID,
-                                           GimpColorTag        color_tag);
-gint          gimp_item_get_tattoo        (gint32              item_ID);
-gboolean      gimp_item_set_tattoo        (gint32              item_ID,
-                                           gint                tattoo);
-gboolean      gimp_item_attach_parasite   (gint32              item_ID,
-                                           const GimpParasite *parasite);
-gboolean      gimp_item_detach_parasite   (gint32              item_ID,
-                                           const gchar        *name);
-GimpParasite* gimp_item_get_parasite      (gint32              item_ID,
-                                           const gchar        *name);
-gchar**       gimp_item_get_parasite_list (gint32              item_ID,
-                                           gint               *num_parasites);
+gboolean                 gimp_item_is_valid          (gint32              item_ID);
+gint32                   gimp_item_get_image         (gint32              item_ID);
+gboolean                 gimp_item_delete            (gint32              item_ID);
+gboolean                 gimp_item_is_drawable       (gint32              item_ID);
+gboolean                 gimp_item_is_layer          (gint32              item_ID);
+gboolean                 gimp_item_is_text_layer     (gint32              item_ID);
+gboolean                 gimp_item_is_channel        (gint32              item_ID);
+gboolean                 gimp_item_is_layer_mask     (gint32              item_ID);
+gboolean                 gimp_item_is_selection      (gint32              item_ID);
+gboolean                 gimp_item_is_vectors        (gint32              item_ID);
+gboolean                 gimp_item_is_group          (gint32              item_ID);
+gint32                   gimp_item_get_parent        (gint32              item_ID);
+gint*                    gimp_item_get_children      (gint32              item_ID,
+                                                      gint               *num_children);
+gchar*                   gimp_item_get_name          (gint32              item_ID);
+gboolean                 gimp_item_set_name          (gint32              item_ID,
+                                                      const gchar        *name);
+gboolean                 gimp_item_get_visible       (gint32              item_ID);
+gboolean                 gimp_item_set_visible       (gint32              item_ID,
+                                                      gboolean            visible);
+gboolean                 gimp_item_get_linked        (gint32              item_ID);
+gboolean                 gimp_item_set_linked        (gint32              item_ID,
+                                                      gboolean            linked);
+gboolean                 gimp_item_get_lock_content  (gint32              item_ID);
+gboolean                 gimp_item_set_lock_content  (gint32              item_ID,
+                                                      gboolean            lock_content);
+gboolean                 gimp_item_get_lock_position (gint32              item_ID);
+gboolean                 gimp_item_set_lock_position (gint32              item_ID,
+                                                      gboolean            lock_position);
+GimpColorTag             gimp_item_get_color_tag     (gint32              item_ID);
+gboolean                 gimp_item_set_color_tag     (gint32              item_ID,
+                                                      GimpColorTag        color_tag);
+gint                     gimp_item_get_tattoo        (gint32              item_ID);
+gboolean                 gimp_item_set_tattoo        (gint32              item_ID,
+                                                      gint                tattoo);
+G_GNUC_INTERNAL gchar*   _gimp_item_get_attributes   (gint32              item_ID);
+G_GNUC_INTERNAL gboolean _gimp_item_set_attributes   (gint32              item_ID,
+                                                      const gchar        *attributes_string);
+gboolean                 gimp_item_attach_parasite   (gint32              item_ID,
+                                                      const GimpParasite *parasite);
+gboolean                 gimp_item_detach_parasite   (gint32              item_ID,
+                                                      const gchar        *name);
+GimpParasite*            gimp_item_get_parasite      (gint32              item_ID,
+                                                      const gchar        *name);
+gchar**                  gimp_item_get_parasite_list (gint32              item_ID,
+                                                      gint               *num_parasites);
 
 
 G_END_DECLS

libgimp/gimpviewable.c

@@ -0,0 +1,84 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-2000 Peter Mattis and Spencer Kimball
+ *
+ * gimpimage.c
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gimp.h"
+#include "gimpimage.h"
+
+/**
+ * gimp_viewable_get_attributes:
+ * @object_ID: The viewable object.
+ *
+ * Returns the viewable's attributes.
+ *
+ * Returns attributes from the viewable.
+ *
+ * Returns: The attributes, or %NULL if there is none.
+ *
+ * Since: GIMP 2.10
+ **/
+GimpAttributes *
+gimp_viewable_get_attributes (gint32 object_ID)
+{
+  GimpAttributes *attributes = NULL;
+  gchar          *attributes_string;
+
+  attributes_string = _gimp_viewable_get_attributes (object_ID);
+  if (attributes_string)
+    {
+      attributes = gimp_attributes_deserialize (NULL, attributes_string);
+      g_free (attributes_string);
+    }
+
+  return attributes;
+}
+
+/**
+ * gimp_viewable_set_attributes:
+ * @object_ID: The viewable object.
+ * @attributes: The GimpAttributes object.
+ *
+ * Set the viewable's attributes.
+ *
+ * Sets attributes on the viewable, or deletes it if
+ * @attributes is %NULL.
+ *
+ * Returns: TRUE on success.
+ *
+ * Since: GIMP 2.10
+ **/
+gboolean
+gimp_viewable_set_attributes (gint32          object_ID,
+                              GimpAttributes *attributes)
+{
+  gchar    *attributes_string = NULL;
+  gboolean  success;
+
+  if (attributes)
+    attributes_string = gimp_attributes_serialize (attributes);
+
+  success = _gimp_viewable_set_attributes (object_ID, attributes_string);
+
+  if (attributes_string)
+    g_free (attributes_string);
+
+  return success;
+}

libgimp/gimpviewable_pdb.c

@@ -0,0 +1,100 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
+ *
+ * gimpimage_pdb.c
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+/* NOTE: This file is auto-generated by pdbgen.pl */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "gimp.h"
+
+
+/**
+ * SECTION: gimpimage
+ * @title: gimpimage
+ * @short_description: Operations on complete images.
+ *
+ * Operations on complete images: creation, resizing/rescaling, and
+ * operations involving multiple layers.
+ **/
+
+/**
+ * _gimp_viewable_get_attributes:
+ * @object_ID: The viewable object.
+ *
+ * Returns the viewable's attributes.
+ *
+ * Returns attributes from the viewable.
+ *
+ * Returns: The attributes as a xml string.
+ **/
+gchar *
+_gimp_viewable_get_attributes (gint32 object_ID)
+{
+  GimpParam *return_vals;
+  gint nreturn_vals;
+  gchar *attributes_string = NULL;
+
+  return_vals = gimp_run_procedure ("gimp-viewable-get-attributes",
+                                    &nreturn_vals,
+                                    GIMP_PDB_IMAGE, object_ID,
+                                    GIMP_PDB_END);
+
+  if (return_vals[0].data.d_status == GIMP_PDB_SUCCESS)
+    attributes_string = g_strdup (return_vals[1].data.d_string);
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+
+  return attributes_string;
+}
+
+/**
+ * _gimp_viewable_set_attributes:
+ * @object_ID: The viewable object.
+ * @attributes_string: The attributes as a string.
+ *
+ * Set the viewable's attributes.
+ *
+ * Sets attributes on the viewable.
+ *
+ * Returns: TRUE on success.
+ **/
+gboolean
+_gimp_image_set_attributes (gint32       object_ID,
+                            const gchar *attributes_string)
+{
+  GimpParam *return_vals;
+  gint nreturn_vals;
+  gboolean success = TRUE;
+
+  return_vals = gimp_run_procedure ("gimp-viewable-set-attributes",
+                                    &nreturn_vals,
+                                    GIMP_PDB_IMAGE, object_ID,
+                                    GIMP_PDB_STRING, attributes_string,
+                                    GIMP_PDB_END);
+
+  success = return_vals[0].data.d_status == GIMP_PDB_SUCCESS;
+
+  gimp_destroy_params (return_vals, nreturn_vals);
+
+  return success;
+}
+

libgimpbase/Makefile.am

@@ -90,6 +90,12 @@ libgimpbase_sources = \
 	gimpparam.h		\
 	gimpversion.h		\
 	\
+	gimpattribute.c	\
+	gimpattribute.h	\
+	gimpattributes.c	\
+	gimpattributes.h	\
+	gimpattributes-image.c	\
+	gimpattributes-image.h	\
 	gimpbase-private.c	\
 	gimpbase-private.h	\
 	gimpchecks.c           	\
@@ -110,6 +116,8 @@ libgimpbase_sources = \
 	gimpparasiteio.h	\
 	gimpprotocol.c		\
 	gimpprotocol.h		\
+	gimprational.c		\
+	gimprational.h		\
 	gimprectangle.c		\
 	gimprectangle.h		\
 	gimpreloc.c		\
@@ -143,6 +151,9 @@ libgimpbaseinclude_HEADERS = \
 	gimpparam.h		\
 	gimpversion.h		\
 	\
+	gimpattribute.h		\
+	gimpattributes.h		\
+	gimpattributes-image.h	\
 	gimpchecks.h		\
 	gimpdatafiles.h		\
 	gimpenv.h		\
@@ -150,6 +161,7 @@ libgimpbaseinclude_HEADERS = \
 	gimpmetadata.h		\
 	gimpparasite.h		\
 	gimpparasiteio.h	\
+	gimprational.h		\
 	gimprectangle.h		\
 	gimpsignal.h		\
 	gimpunit.h		\

libgimpbase/gimpattribute.h

@@ -0,0 +1,97 @@
+/* gimpattribute.h generated by valac 0.24.0, the Vala compiler, do not modify */
+
+
+#ifndef __GIMPATTRIBUTE_H__
+#define __GIMPATTRIBUTE_H__
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+#define GIMP_TYPE_ATTRIBUTE            (gimp_attribute_get_type ())
+#define GIMP_ATTRIBUTE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_ATTRIBUTE, GimpAttribute))
+#define GIMP_ATTRIBUTE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_ATTRIBUTE, GimpAttributeClass))
+#define GIMP_IS_ATTRIBUTE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_ATTRIBUTE))
+#define GIMP_IS_ATTRIBUTE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_ATTRIBUTE))
+#define GIMP_ATTRIBUTE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ATTRIBUTE, GimpAttributeClass))
+#define GIMP_ATTRIBUTE_GET_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE ((o), GIMP_TYPE_ATTRIBUTE, GimpAttributePrivate))
+
+#define GIMP_TYPE_ATTRIBUTE_TAG_TYPE (gimp_attribute_tag_type_get_type ())
+
+GType gimp_attribute_tag_type_get_type (void) G_GNUC_CONST;
+
+typedef enum  {
+  TYPE_INVALID,
+  TYPE_LONG,
+  TYPE_SLONG,
+  TYPE_FLOAT,
+  TYPE_DOUBLE,
+  TYPE_SHORT,
+  TYPE_SSHORT,
+  TYPE_DATE,
+  TYPE_TIME,
+  TYPE_ASCII,
+  TYPE_UNICODE,
+  TYPE_BYTE,
+  TYPE_MULTIPLE,
+  TYPE_RATIONAL,
+  TYPE_SRATIONAL,
+  TYPE_UNKNOWN,
+  NUM_VALUE_TYPES
+} GimpAttributeValueType;
+
+typedef enum  {
+  STRUCTURE_TYPE_BAG,
+  STRUCTURE_TYPE_SEQ,
+  STRUCTURE_TYPE_ALT,
+  STRUCTURE_TYPE_LANG,
+  STRUCTURE_TYPE_NONE,
+  STRUCTURE_TYPE_STRUCT,
+  NUM_STRUCTURE_TYPES
+} GimpAttributeStructureType;
+
+typedef enum {
+  TAG_INVALID,
+  TAG_EXIF,
+  TAG_XMP,
+  TAG_IPTC,
+  TAG_GIMP,
+  TAG_MISC,
+  NUM_TAG_TYPES
+} GimpAttributeTagType;
+
+GType                       gimp_attribute_get_type                       (void) G_GNUC_CONST;
+
+GimpAttribute*              gimp_attribute_new_string                     (const gchar                *name,
+                                                                           gchar                      *value,
+                                                                           GimpAttributeValueType      type);
+const gchar*                gimp_attribute_get_interpreted_string         (GimpAttribute              *attribute);
+void                        gimp_attribute_set_interpreted_string         (GimpAttribute              *attribute,
+                                                                           const gchar                *value);
+GimpAttribute*              gimp_attribute_copy                           (GimpAttribute              *attribute);
+gboolean                    gimp_attribute_is_valid                       (GimpAttribute              *attribute);
+const gchar*                gimp_attribute_get_attribute_type             (GimpAttribute              *attribute);
+const gchar*                gimp_attribute_get_attribute_ifd              (GimpAttribute              *attribute);
+const gchar*                gimp_attribute_get_attribute_tag              (GimpAttribute              *attribute);
+const gboolean              gimp_attribute_is_new_namespace               (GimpAttribute              *attribute);
+const gchar*                gimp_attribute_get_name                       (GimpAttribute              *attribute);
+const gchar*                gimp_attribute_get_sortable_name              (GimpAttribute              *attribute);
+GValue                      gimp_attribute_get_value                      (GimpAttribute              *attribute);
+gchar*                      gimp_attribute_get_string                     (GimpAttribute              *attribute);
+GimpAttributeTagType        gimp_attribute_get_tag_type                   (GimpAttribute              *attribute);
+GimpAttributeValueType      gimp_attribute_get_value_type_from_string     (const gchar                *string);
+GimpAttributeValueType      gimp_attribute_get_value_type                 (GimpAttribute              *attribute);
+void                        gimp_attribute_set_value_type                 (GimpAttribute              *attribute,
+                                                                           GimpAttributeValueType      value_type);
+gboolean                    gimp_attribute_has_structure                  (GimpAttribute              *attribute);
+GSList*                     gimp_attribute_get_attribute_structure        (GimpAttribute              *attribute);
+void                        gimp_attribute_set_structure_type             (GimpAttribute              *attribute,
+                                                                           GimpAttributeStructureType  value);
+GimpAttributeStructureType  gimp_attribute_get_structure_type             (GimpAttribute              *attribute);
+gdouble                     gimp_attribute_get_gps_degree                 (GimpAttribute              *attribute);
+gchar*                      gimp_attribute_get_xml                        (GimpAttribute              *attribute);
+void                        gimp_attribute_print                          (GimpAttribute              *attribute);
+
+G_END_DECLS
+
+#endif

libgimpbase/gimpattributes-image.c

@@ -0,0 +1,471 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimpattributes-image.c
+ * Copyright (C) 2014  Hartmut Kuhse <hatti@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdio.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+
+#include <glib-object.h>
+#include <gexiv2/gexiv2.h>
+
+#ifdef G_OS_WIN32
+#endif
+
+#include "libgimpmath/gimpmath.h"
+
+#include "gimprational.h"
+#include "gimpbasetypes.h"
+#include "gimpattribute.h"
+#include "gimpattributes.h"
+#include "gimplimits.h"
+#include "gimpmetadata.h"
+#include "gimpunit.h"
+#include "gimpattributes-image.h"
+
+/**
+ * SECTION: gimpattributes-image
+ * @title: gimpattributes-image
+ * @short_description: handle image data.
+ * @see_also: GimpAttribute, GimpAttributes
+ *
+ * handle image data.
+ **/
+
+
+/**
+ * gimp_metadata_set_resolution:
+ * @metadata: A #GimpMetadata instance.
+ * @xres:     The image's X Resolution, in ppi
+ * @yres:     The image's Y Resolution, in ppi
+ * @unit:     The image's unit
+ *
+ * Sets Exif.Image.XResolution, Exif.Image.YResolution and
+ * Exif.Image.ResolutionUnit @metadata.
+ *
+ * Since: GIMP 2.10
+ */
+void
+gimp_attributes_set_resolution (GimpAttributes *attributes,
+                                gdouble         xres,
+                                gdouble         yres,
+                                GimpUnit        unit)
+{
+  gchar buffer[64];
+  gint  exif_unit;
+  gint  factor;
+
+  g_return_if_fail (GIMP_IS_ATTRIBUTES (attributes));
+
+  if (gimp_unit_is_metric (unit))
+    {
+      xres /= 2.54;
+      yres /= 2.54;
+
+      exif_unit = 3;
+    }
+  else
+    {
+      exif_unit = 2;
+    }
+
+  for (factor = 1; factor <= 100 /* arbitrary */; factor++)
+    {
+      if (fabs (xres * factor - ROUND (xres * factor)) < 0.01 &&
+          fabs (yres * factor - ROUND (yres * factor)) < 0.01)
+        break;
+    }
+
+  g_snprintf (buffer, sizeof (buffer), "%d/%d", ROUND (xres * factor), factor);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.XResolution", buffer, TYPE_RATIONAL);
+
+  g_snprintf (buffer, sizeof (buffer), "%d/%d", ROUND (yres * factor), factor);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.YResolution", buffer, TYPE_RATIONAL);
+
+  g_snprintf (buffer, sizeof (buffer), "%d", exif_unit);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.ResolutionUnit", buffer, TYPE_SHORT);
+}
+
+/**
+ * gimp_attributes_get_resolution:
+ * @metadata: A #GimpMetadata instance.
+ * @xres:     Return location for the X Resolution, in ppi
+ * @yres:     Return location for the Y Resolution, in ppi
+ * @unit:     Return location for the unit unit
+ *
+ * Returns values based on Exif.Image.XResolution,
+ * Exif.Image.YResolution and Exif.Image.ResolutionUnit of @metadata.
+ *
+ * Return value: %TRUE on success, %FALSE otherwise.
+ *
+ * Since: GIMP 2.10
+ */
+gboolean
+gimp_attributes_get_resolution (GimpAttributes *attributes,
+                                gdouble        *xres,
+                                gdouble        *yres,
+                                GimpUnit       *unit)
+{
+  GimpAttribute *x_attribute;
+  GimpAttribute *y_attribute;
+  GimpAttribute *res_attribute;
+
+  gint   xnom, xdenom;
+  gint   ynom, ydenom;
+  gint   exif_unit = 2;
+
+  g_return_val_if_fail (GIMP_IS_ATTRIBUTES (attributes), FALSE);
+
+  x_attribute = gimp_attributes_get_attribute (attributes, "Exif.Image.XResolution");
+  y_attribute = gimp_attributes_get_attribute (attributes, "Exif.Image.YResolution");
+  res_attribute = gimp_attributes_get_attribute (attributes, "Exif.Image.ResolutionUnit");
+
+  if (x_attribute)
+    {
+      GValue    value;
+      Rational *rats;
+      gint     *_nom;
+      gint     *_denom;
+      gint      l;
+
+      value = gimp_attribute_get_value (x_attribute);
+
+      rats = g_value_get_boxed (&value);
+
+      rational_to_int (rats, &_nom, &_denom, &l);
+
+      if (l > 0)
+        {
+          xnom = _nom[0];
+          xdenom = _denom[0];
+        }
+      rational_free (rats);
+    }
+  else
+    return FALSE;
+
+  if (y_attribute)
+    {
+      GValue    value;
+      Rational *rats;
+      gint     *_nom;
+      gint     *_denom;
+      gint      l;
+
+      value = gimp_attribute_get_value (y_attribute);
+
+      rats = g_value_get_boxed (&value);
+
+      rational_to_int (rats, &_nom, &_denom, &l);
+
+      if (l > 0)
+        {
+          ynom = _nom[0];
+          ydenom = _denom[0];
+        }
+      rational_free (rats);
+    }
+  else
+    return FALSE;
+
+  if (res_attribute)
+    {
+      GValue value = gimp_attribute_get_value (res_attribute);
+
+      exif_unit = (gint) g_value_get_uint (&value);
+    }
+
+  if (xnom != 0 && xdenom != 0 &&
+      ynom != 0 && ydenom != 0)
+    {
+      gdouble xresolution = (gdouble) xnom / (gdouble) xdenom;
+      gdouble yresolution = (gdouble) ynom / (gdouble) ydenom;
+
+      if (exif_unit == 3)
+        {
+          xresolution *= 2.54;
+          yresolution *= 2.54;
+        }
+
+      if (xresolution >= GIMP_MIN_RESOLUTION &&
+          xresolution <= GIMP_MAX_RESOLUTION &&
+          yresolution >= GIMP_MIN_RESOLUTION &&
+          yresolution <= GIMP_MAX_RESOLUTION)
+        {
+          if (xres)
+            *xres = xresolution;
+
+          if (yres)
+            *yres = yresolution;
+
+          if (unit)
+            {
+              if (exif_unit == 3)
+                *unit = GIMP_UNIT_MM;
+              else
+                *unit = GIMP_UNIT_INCH;
+            }
+
+          return TRUE;
+        }
+    }
+  return FALSE;
+}
+
+/**
+ * gimp_attributes_set_bits_per_sample:
+ * @metadata: A #GimpMetadata instance.
+ * @bps:      Bytes per pixel, per component
+ *
+ * Sets Exif.Image.BitsPerSample on @metadata.
+ *
+ * Since: GIMP 2.10
+ */
+void
+gimp_attributes_set_bits_per_sample (GimpAttributes *attributes,
+                                     gint            bps)
+{
+  gchar buffer[32];
+
+  g_return_if_fail (GIMP_IS_ATTRIBUTES (attributes));
+
+  g_snprintf (buffer, sizeof (buffer), "%d", bps);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.BitsPerSample", buffer, TYPE_SHORT);
+}
+
+/**
+ * gimp_attributes_set_pixel_size:
+ * @metadata: A #GimpMetadata instance.
+ * @width:    Width in pixels
+ * @height:   Height in pixels
+ *
+ * Sets Exif.Image.ImageWidth and Exif.Image.ImageLength on @metadata.
+ *
+ * Since: GIMP 2.10
+ */
+void
+gimp_attributes_set_pixel_size (GimpAttributes *attributes,
+                                gint            width,
+                                gint            height)
+{
+  gchar buffer[32];
+
+  g_return_if_fail (GIMP_IS_ATTRIBUTES (attributes));
+
+  g_snprintf (buffer, sizeof (buffer), "%d", width);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.ImageWidth", buffer, TYPE_LONG);
+
+  g_snprintf (buffer, sizeof (buffer), "%d", height);
+  gimp_attributes_new_attribute (attributes, "Exif.Image.ImageLength", buffer, TYPE_LONG);
+}
+
+/**
+ * gimp_metadata_get_colorspace:
+ * @attributes: Ab #GimpAttributes instance.
+ *
+ * Returns values based on Exif.Photo.ColorSpace, Xmp.exif.ColorSpace,
+ * Exif.Iop.InteroperabilityIndex, Exif.Nikon3.ColorSpace,
+ * Exif.Canon.ColorSpace of @metadata.
+ *
+ * Return value: The colorspace specified by above tags.
+ *
+ * Since: 2.10
+ */
+GimpAttributesColorspace
+gimp_attributes_get_colorspace (GimpAttributes *attributes)
+{
+  glong          exif_cs   = -1;
+  GimpAttribute *attribute = NULL;
+  GValue         val;
+
+  g_return_val_if_fail (GIMP_IS_ATTRIBUTES (attributes),
+                        GIMP_ATTRIBUTES_COLORSPACE_UNSPECIFIED);
+
+  /*  the logic here was mostly taken from darktable and libkexiv2  */
+
+  attribute = gimp_attributes_get_attribute (attributes, "Exif.Photo.ColorSpace");
+  if ( ! attribute)
+    {
+      attribute = gimp_attributes_get_attribute (attributes, "Xmp.exif.ColorSpace");
+    }
+
+  if (attribute)
+    {
+      if (gimp_attribute_get_value_type (attribute) == TYPE_LONG || gimp_attribute_get_value_type (attribute) == TYPE_SLONG)
+        {
+          val = gimp_attribute_get_value (attribute);
+          exif_cs = g_value_get_long (&val);
+        }
+    }
+
+  if (exif_cs == 0x01)
+    {
+      return GIMP_ATTRIBUTES_COLORSPACE_SRGB;
+    }
+  else if (exif_cs == 0x02)
+    {
+      return GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB;
+    }
+  else
+    {
+      if (exif_cs == 0xffff)
+        {
+          gchar *iop_index;
+
+          attribute = gimp_attributes_get_attribute (attributes, "Exif.Iop.InteroperabilityIndex");
+          if (attribute)
+            iop_index = gimp_attribute_get_string (attribute);
+
+          if (! g_strcmp0 (iop_index, "R03"))
+            {
+              g_free (iop_index);
+
+              return GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB;
+            }
+          else if (! g_strcmp0 (iop_index, "R98"))
+            {
+              g_free (iop_index);
+
+              return GIMP_ATTRIBUTES_COLORSPACE_SRGB;
+            }
+
+          g_free (iop_index);
+        }
+
+      attribute = gimp_attributes_get_attribute (attributes, "Exif.Nikon3.ColorSpace");
+      if (attribute)
+        {
+          if (gimp_attribute_get_value_type (attribute) == TYPE_LONG || gimp_attribute_get_value_type (attribute) == TYPE_SLONG)
+            {
+              glong nikon_cs;
+
+              val = gimp_attribute_get_value (attribute);
+              nikon_cs = g_value_get_long (&val);
+
+              if (nikon_cs == 0x01)
+                {
+                  return GIMP_ATTRIBUTES_COLORSPACE_SRGB;
+                }
+              else if (nikon_cs == 0x02)
+                {
+                  return GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB;
+                }
+            }
+        }
+
+      attribute = gimp_attributes_get_attribute (attributes, "Exif.Canon.ColorSpace");
+      if (attribute)
+        {
+          if (gimp_attribute_get_value_type (attribute) == TYPE_LONG || gimp_attribute_get_value_type (attribute) == TYPE_SLONG)
+            {
+              glong canon_cs;
+
+              val = gimp_attribute_get_value (attribute);
+              canon_cs = g_value_get_long (&val);
+
+              if (canon_cs == 0x01)
+                {
+                  return GIMP_ATTRIBUTES_COLORSPACE_SRGB;
+                }
+              else if (canon_cs == 0x02)
+                {
+                  return GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB;
+                }
+            }
+        }
+
+      if (exif_cs == 0xffff)
+        return GIMP_ATTRIBUTES_COLORSPACE_UNCALIBRATED;
+    }
+
+  return GIMP_ATTRIBUTES_COLORSPACE_UNSPECIFIED;
+}
+
+/**
+ * gimp_metadata_set_colorspace:
+ * @metadata:   A #GimpMetadata instance.
+ * @colorspace: The color space.
+ *
+ * Sets Exif.Photo.ColorSpace, Xmp.exif.ColorSpace,
+ * Exif.Iop.InteroperabilityIndex, Exif.Nikon3.ColorSpace,
+ * Exif.Canon.ColorSpace of @metadata.
+ *
+ * Since: 2.10
+ */
+void
+gimp_attributes_set_colorspace (GimpAttributes           *attributes,
+                                GimpAttributesColorspace  colorspace)
+{
+  g_return_if_fail (GIMP_IS_ATTRIBUTES (attributes));
+
+  gimp_attributes_remove_attribute (attributes, "Exif.Photo.ColorSpace");
+  gimp_attributes_remove_attribute (attributes, "Xmp.exif.ColorSpace");
+  gimp_attributes_remove_attribute (attributes, "Exif.Iop.InteroperabilityIndex");
+
+  switch (colorspace)
+    {
+    case GIMP_ATTRIBUTES_COLORSPACE_UNSPECIFIED:
+      gimp_attributes_remove_attribute (attributes, "Exif.Nikon3.ColorSpace");
+      gimp_attributes_remove_attribute (attributes, "Exif.Canon.ColorSpace");
+      break;
+
+    case GIMP_ATTRIBUTES_COLORSPACE_UNCALIBRATED:
+      gimp_attributes_new_attribute (attributes, "Exif.Photo.ColorSpace", "0xffff", TYPE_LONG);
+      gimp_attributes_new_attribute (attributes, "Xmp.exif.ColorSpace", "0xffff", TYPE_LONG);
+      break;
+
+    case GIMP_ATTRIBUTES_COLORSPACE_SRGB:
+      gimp_attributes_new_attribute (attributes, "Exif.Photo.ColorSpace", "0x01", TYPE_LONG);
+      gimp_attributes_new_attribute (attributes, "Xmp.exif.ColorSpace", "0x01", TYPE_LONG);
+      gimp_attributes_new_attribute (attributes, "Exif.Iop.InteroperabilityIndex", "R98", TYPE_ASCII);
+      if (gimp_attributes_has_attribute (attributes, "Exif.Nikon3.ColorSpace"))
+        {
+          gimp_attributes_remove_attribute (attributes, "Exif.Nikon3.ColorSpace");
+          gimp_attributes_new_attribute (attributes, "Exif.Nikon3.ColorSpace", "0x01", TYPE_LONG);
+        }
+      if (gimp_attributes_has_attribute (attributes, "Exif.Canon.ColorSpace"))
+        {
+          gimp_attributes_remove_attribute (attributes, "Exif.Canon.ColorSpace");
+          gimp_attributes_new_attribute (attributes, "Exif.Canon.ColorSpace", "0x01", TYPE_LONG);
+        }
+      break;
+
+    case GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB:
+      gimp_attributes_new_attribute (attributes, "Exif.Photo.ColorSpace", "0x02", TYPE_LONG);
+      gimp_attributes_new_attribute (attributes, "Xmp.exif.ColorSpace", "0x02", TYPE_LONG);
+      gimp_attributes_new_attribute (attributes, "Exif.Iop.InteroperabilityIndex", "R03", TYPE_ASCII);
+      if (gimp_attributes_has_attribute (attributes, "Exif.Nikon3.ColorSpace"))
+        {
+          gimp_attributes_remove_attribute (attributes, "Exif.Nikon3.ColorSpace");
+          gimp_attributes_new_attribute (attributes, "Exif.Nikon3.ColorSpace", "0x02", TYPE_LONG);
+        }
+      if (gimp_attributes_has_attribute (attributes, "Exif.Canon.ColorSpace"))
+        {
+          gimp_attributes_remove_attribute (attributes, "Exif.Canon.ColorSpace");
+          gimp_attributes_new_attribute (attributes, "Exif.Canon.ColorSpace", "0x02", TYPE_LONG);
+        }
+      break;
+    }
+}

libgimpbase/gimpattributes-image.h

@@ -0,0 +1,59 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimpattributes-image.h
+ * Copyright (C) 2014  Hartmut Kuhse <hatti@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef __GIMPATTRIBUTES_IMAGE_H__
+#define __GIMPATTRIBUTES_IMAGE_H__
+
+G_BEGIN_DECLS
+
+typedef enum
+{
+  GIMP_ATTRIBUTES_COLORSPACE_UNSPECIFIED,
+  GIMP_ATTRIBUTES_COLORSPACE_UNCALIBRATED,
+  GIMP_ATTRIBUTES_COLORSPACE_SRGB,
+  GIMP_ATTRIBUTES_COLORSPACE_ADOBERGB
+} GimpAttributesColorspace;
+
+gboolean                 gimp_attributes_get_resolution            (GimpAttributes           *attributes,
+                                                                    gdouble                  *xres,
+                                                                    gdouble                  *yres,
+                                                                    GimpUnit                 *unit);
+
+void                     gimp_attributes_set_resolution            (GimpAttributes           *attributes,
+                                                                    gdouble                   xres,
+                                                                    gdouble                   yres,
+                                                                    GimpUnit                  unit);
+
+void                     gimp_attributes_set_bits_per_sample       (GimpAttributes           *attributes,
+                                                                    gint                      bps);
+
+void                     gimp_attributes_set_pixel_size            (GimpAttributes           *attributes,
+                                                                    gint                      width,
+                                                                    gint                      height);
+
+GimpAttributesColorspace gimp_attributes_get_colorspace            (GimpAttributes           *attributes);
+
+void                     gimp_attributes_set_colorspace            (GimpAttributes           *attributes,
+                                                                    GimpAttributesColorspace  colorspace);
+G_END_DECLS
+
+#endif

libgimpbase/gimpattributes.h

@@ -0,0 +1,79 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimpattributes.h
+ * Copyright (C) 2014  Hartmut Kuhse <hatti@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef __GIMPATTRIBUTES_H__
+#define __GIMPATTRIBUTES_H__
+
+G_BEGIN_DECLS
+
+#define GIMP_TYPE_ATTRIBUTES            (gimp_attributes_get_type ())
+#define GIMP_ATTRIBUTES(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_ATTRIBUTES, GimpAttributes))
+#define GIMP_ATTRIBUTES_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_ATTRIBUTES, GimpAttributesClass))
+#define GIMP_IS_ATTRIBUTES(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_ATTRIBUTES))
+#define GIMP_IS_ATTRIBUTES_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_ATTRIBUTES))
+#define GIMP_ATTRIBUTES_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_ATTRIBUTES, GimpAttributesClass))
+#define GIMP_ATTRIBUTES_GET_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE ((o), GIMP_TYPE_ATTRIBUTES, GimpAttributesPrivate))
+
+
+GType                                     gimp_attributes_get_type                                   (void) G_GNUC_CONST;
+GimpAttributes *                          gimp_attributes_new                                        (void);
+gint                                      gimp_attributes_size                                       (GimpAttributes      *attributes);
+GimpAttributes *                          gimp_attributes_duplicate                                  (GimpAttributes      *attributes);
+GHashTable *                              gimp_attributes_get_table                                  (GimpAttributes      *attributes);
+void                                      gimp_attributes_add_attribute                              (GimpAttributes      *attributes,
+                                                                                                      GimpAttribute       *attribute);
+GimpAttribute *                           gimp_attributes_get_attribute                              (GimpAttributes      *attributes,
+                                                                                                      const gchar         *name);
+gboolean                                  gimp_attributes_remove_attribute                           (GimpAttributes      *attributes,
+                                                                                                      const gchar         *name);
+gboolean                                  gimp_attributes_has_attribute                              (GimpAttributes      *attributes,
+                                                                                                      const gchar         *name);
+gboolean                                  gimp_attributes_new_attribute                              (GimpAttributes      *attributes,
+                                                                                                      const gchar         *name,
+                                                                                                      gchar               *value,
+                                                                                                      GimpAttributeValueType
+                                                                                                                           type);
+
+GimpAttributes *                          gimp_attributes_from_metadata                              (GimpAttributes      *attributes,
+                                                                                                      GimpMetadata        *metadata);
+void                                      gimp_attributes_to_metadata                                (GimpAttributes      *attributes,
+                                                                                                      GimpMetadata        *metadata,
+                                                                                                      const gchar         *mime_type);
+const gchar *                             gimp_attributes_to_xmp_packet                              (GimpAttributes      *attributes,
+                                                                                                      const gchar         *mime_type);
+gchar *                                   gimp_attributes_serialize                                  (GimpAttributes      *attributes);
+GimpAttributes *                          gimp_attributes_deserialize                                (const gchar         *xml);
+gboolean                                  gimp_attributes_has_tag_type                               (GimpAttributes      *attributes,
+                                                                                                      GimpAttributeTagType tag_type);
+void                                      gimp_attributes_print                                      (GimpAttributes      *attributes);
+GList *                                   gimp_attributes_iter_init                                  (GimpAttributes      *attributes,
+                                                                                                      GList              **iter);
+gboolean                                  gimp_attributes_iter_next                                  (GimpAttributes      *attributes,
+                                                                                                      GimpAttribute      **attribute,
+                                                                                                      GList              **prev);
+
+
+
+
+G_END_DECLS
+
+#endif

libgimpbase/gimpbase.def

@@ -1,6 +1,53 @@
 EXPORTS
 	gimp_add_mask_type_get_type
 	gimp_any_to_utf8
+	gimp_attribute_copy
+	gimp_attribute_get_attribute_type
+	gimp_attribute_get_attribute_ifd
+	gimp_attribute_get_attribute_structure
+	gimp_attribute_get_attribute_tag
+	gimp_attribute_get_interpreted_string
+	gimp_attribute_get_name
+	gimp_attribute_get_sortable_name
+	gimp_attribute_get_string
+	gimp_attribute_get_structure_type
+	gimp_attribute_get_tag_type
+	gimp_attribute_get_value
+	gimp_attribute_get_value_type
+	gimp_attribute_get_value_type_from_string
+	gimp_attribute_get_gps_degree
+	gimp_attribute_get_xml
+	gimp_attribute_has_structure
+	gimp_attribute_is_valid
+	gimp_attribute_new_string
+	gimp_attribute_print
+	gimp_attribute_set_interpreted_string
+	gimp_attribute_set_structure_type
+	gimp_attribute_set_value_type
+	gimp_attributes_add_attribute
+	gimp_attributes_deserialize
+	gimp_attributes_duplicate
+	gimp_attributes_from_metadata
+	gimp_attributes_get_attribute
+	gimp_attributes_get_colorspace
+	gimp_attributes_get_resolution
+	gimp_attributes_get_table
+	gimp_attributes_has_tag_type
+	gimp_attributes_iter_init
+	gimp_attributes_iter_next
+	gimp_attributes_new
+	gimp_attributes_new_attribute
+	gimp_attributes_print
+	gimp_attributes_remove_attribute
+	gimp_attributes_has_attribute
+	gimp_attributes_serialize
+	gimp_attributes_set_bits_per_sample
+	gimp_attributes_set_colorspace
+	gimp_attributes_set_pixel_size
+	gimp_attributes_set_resolution
+	gimp_attributes_size
+	gimp_attributes_to_metadata
+	gimp_attributes_to_xmp_packet
 	gimp_base_init
 	gimp_blend_mode_get_type
 	gimp_brush_generated_shape_get_type
@@ -71,7 +118,6 @@ EXPORTS
 	gimp_merge_type_get_type
 	gimp_message_handler_type_get_type
 	gimp_metadata_deserialize 
-	gimp_metadata_duplicate
 	gimp_metadata_get_colorspace
 	gimp_metadata_get_resolution
 	gimp_metadata_is_tag_supported
@@ -83,8 +129,6 @@ EXPORTS
 	gimp_metadata_set_colorspace
 	gimp_metadata_set_from_exif
 	gimp_metadata_set_from_xmp
-	gimp_metadata_set_pixel_size
-	gimp_metadata_set_resolution
 	gimp_micro_version
 	gimp_minor_version
 	gimp_offset_type_get_type
@@ -210,3 +254,5 @@ EXPORTS
 	gp_tile_ack_write
 	gp_tile_data_write
 	gp_tile_req_write
+	rational_free
+	srational_free

libgimpbase/gimpbase.h

@@ -23,6 +23,9 @@
 
 #include <libgimpbase/gimpbasetypes.h>
 
+#include <libgimpbase/gimpattribute.h>
+#include <libgimpbase/gimpattributes.h>
+#include <libgimpbase/gimpattributes-image.h>
 #include <libgimpbase/gimpchecks.h>
 #include <libgimpbase/gimpcpuaccel.h>
 #include <libgimpbase/gimpdatafiles.h>

libgimpbase/gimpbasetypes.h

@@ -45,6 +45,8 @@ G_BEGIN_DECLS
 #endif
 
 
+typedef struct _GimpAttribute    GimpAttribute;
+typedef struct _GimpAttributes   GimpAttributes;
 typedef struct _GimpParasite     GimpParasite;
 typedef struct _GimpDatafileData GimpDatafileData;
 typedef struct _GimpEnumDesc     GimpEnumDesc;

libgimpbase/gimpdatafiles.c

@@ -195,7 +195,7 @@ is_script (const gchar *filename)
   static gchar **exts = NULL;
 
   const gchar   *ext = strrchr (filename, '.');
-  gchar         *pathext;
+  const gchar   *pathext;
   gint           i;
 
   if (exts == NULL)

libgimpbase/gimpmetadata.c

@@ -92,7 +92,6 @@ static const gchar *unsupported_tags[] =
   "Exif.Image.ClipPath",
   "Exif.Image.XClipPathUnits",
   "Exif.Image.YClipPathUnits",
-  "Xmp.xmpMM.History",
   "Exif.Image.XPTitle",
   "Exif.Image.XPComment",
   "Exif.Image.XPAuthor",
@@ -100,8 +99,7 @@ static const gchar *unsupported_tags[] =
   "Exif.Image.XPSubject",
   "Exif.Image.DNGVersion",
   "Exif.Image.DNGBackwardVersion",
-  "Exif.Iop"
-};
+  "Exif.Iop"};
 
 static const guint8 minimal_exif[] =
 {
@@ -173,35 +171,6 @@ gimp_metadata_new (void)
   return metadata;
 }
 
-/**
- * gimp_metadata_duplicate:
- * @metadata: The object to duplicate, or %NULL.
- *
- * Duplicates a #GimpMetadata instance.
- *
- * Return value: The new #GimpMetadata, or %NULL if @metadata is %NULL.
- *
- * Since: 2.10
- */
-GimpMetadata *
-gimp_metadata_duplicate (GimpMetadata *metadata)
-{
-  GimpMetadata *new_metadata = NULL;
-
-  g_return_val_if_fail (metadata == NULL || GEXIV2_IS_METADATA (metadata), NULL);
-
-  if (metadata)
-    {
-      gchar *xml;
-
-      xml = gimp_metadata_serialize (metadata);
-      new_metadata = gimp_metadata_deserialize (xml);
-      g_free (xml);
-    }
-
-  return new_metadata;
-}
-
 typedef struct
 {
   gchar         name[1024];

libgimpbase/gimprational.c

@@ -0,0 +1,301 @@
+/*
+ * gimprational.c
+ *
+ *  Created on: 19.09.2014
+ *      Author: kuhse
+ */
+
+#include <stdlib.h>
+
+#include "gimprational.h"
+
+
+static gpointer                rational_copy                         (gpointer             data);
+static gpointer                srational_copy                        (gpointer             data);
+
+
+G_DEFINE_BOXED_TYPE (Rational, rational,
+                     rational_copy,
+                     rational_free)
+G_DEFINE_BOXED_TYPE (SRational, srational,
+                     srational_copy,
+                     srational_free)
+
+
+/**
+ * string_to_rational:
+ *
+ * @string:     a #gchar array
+ * @rational:  a pointer to a #Rational struct
+ *
+ * converts a string, representing one/more rational values into
+ * a #Rational struct.
+ *
+ * Since: 2.10
+ */
+void
+string_to_rational (gchar *string, Rational **rational)
+{
+  gchar **nom;
+  gchar **rats;
+  gint count;
+  gint i;
+  Rational *rval;
+  GArray *rational_array;
+
+  rats = g_strsplit (string, " ", -1);
+
+  count = 0;
+  while (rats[count])
+    count++;
+
+  rational_array = g_array_new (TRUE, TRUE, sizeof (RationalValue));
+
+  for (i = 0; i < count; i++)
+    {
+      RationalValue or;
+
+      nom = g_strsplit (rats[i], "/", 2);
+
+      if (nom[0] && nom[1])
+        {
+          or.nom = (guint) atoi (nom [0]);
+          or.denom = (guint) atoi (nom [1]);
+        }
+      else
+        count--;
+
+      rational_array = g_array_append_val (rational_array, or);
+
+      g_strfreev (nom);
+    }
+
+  g_strfreev (rats);
+
+  rval = g_slice_new (Rational);
+
+  rval->rational_array = rational_array;
+  rval->length = count;
+
+  *rational = rval;
+}
+
+/**
+ * rational_to_string:
+ *
+ * @rational : a pointer to a @Rational struct
+ * @nom      : a pointer to a #gint array
+ * @denom    : a pointer to a #gint array
+ * @length   : a pointer to a #gint
+ *
+ * converts a @rational to nom/denum gchar arrays
+ *
+ * Since: 2.10
+ */
+void
+rational_to_int (Rational *rational, gint **nom, gint **denom, gint *length)
+{
+  gint i;
+  gint *_nom;
+  gint *_denom;
+
+  g_return_if_fail (rational != NULL);
+
+  _nom = g_new (gint, rational->length);
+  _denom = g_new (gint, rational->length);
+
+  for (i = 0; i < rational->length; i++)
+    {
+      RationalValue one;
+      one = g_array_index(rational->rational_array, RationalValue, i);
+      _nom[i] = one.nom;
+      _denom[i] = one.denom;
+    }
+
+  *nom = _nom;
+  *denom = _denom;
+  *length = rational->length;
+}
+
+/**
+ * rational_copy:
+ *
+ * @data:          a #gpointer to a #Rational structure
+ *
+ * copy part of the #Rational type
+ *
+ * Since: 2.10
+ */
+static gpointer
+rational_copy (gpointer data)
+{
+  struct _Rational *rational = (struct _Rational *) data;
+  struct _Rational *copy = g_slice_new (Rational);
+  gint i;
+  GArray *rlacp;
+
+  if (!data)
+    return NULL;
+
+  rlacp = g_array_new (TRUE, TRUE, sizeof (RationalValue));
+
+  for (i = 0; i < rational->length; i++)
+    {
+      RationalValue or;
+      RationalValue cor;
+
+      or = g_array_index (rational->rational_array, RationalValue, i);
+
+      cor.nom = or.nom;
+      cor.denom = or.denom;
+
+      rlacp = g_array_append_val (rlacp, cor);
+    }
+
+  copy->rational_array = rlacp;
+  copy->length = rational->length;
+
+  return (gpointer) copy;
+}
+
+/**
+ * rational_free:
+ *
+ * @data:          a #gpointer to a #Rational structure
+ *
+ * free part of the #Rational type
+ *
+ * Since: 2.10
+ */
+void
+rational_free (gpointer data)
+{
+  struct _Rational *rational = (struct _Rational *) data;
+
+  if (rational)
+    {
+      if (rational->rational_array)
+        g_array_free (rational->rational_array, TRUE);
+      rational->length = 0;
+    }
+}
+
+/**
+ * string_to_srational:
+ *
+ * @string:     a #gchar array
+ * @srational: a pointer to a #Rational struct
+ *
+ * converts a string, representing one/more srational values into
+ * a #SRational struct.
+ *
+ * Since: 2.10
+ */
+void
+string_to_srational (gchar *string, SRational **srational)
+{
+  gchar **nom;
+  gchar **srats;
+  gint count;
+  gint i;
+  SRational *srval;
+  GArray *srational_array;
+
+  srats = g_strsplit (string, " ", -1);
+
+  count = 0;
+  while (srats[count])
+    count++;
+
+  srational_array = g_array_new (TRUE, TRUE, sizeof (SRationalValue));
+
+  for (i = 0; i < count; i++)
+    {
+      SRationalValue or;
+
+      nom = g_strsplit (srats[i], "/", 2);
+
+      if (nom[0] && nom[1])
+        {
+          or.nom = (gint) atoi (nom [0]);
+          or.denom = (guint) atoi (nom [1]);
+        }
+      else
+        count--;
+
+      srational_array = g_array_append_val (srational_array, or);
+
+      g_strfreev (nom);
+    }
+
+  g_strfreev (srats);
+
+  srval = g_slice_new (SRational);
+
+  srval->srational_array = srational_array;
+  srval->length = count;
+
+  *srational = srval;
+}
+/**
+ * srational_copy:
+ *
+ * @data:          a #gpointer to a #SRational structure
+ *
+ * copy part of the #SRational type
+ *
+ * Since: 2.10
+ */
+static gpointer
+srational_copy (gpointer data)
+{
+  struct _SRational *srational = (struct _SRational *) data;
+  struct _SRational *copy = g_slice_new (SRational);
+  gint i;
+  GArray *rlacp;
+
+  if (!data)
+    return NULL;
+
+  rlacp = g_array_new (TRUE, TRUE, sizeof (SRationalValue));
+
+  for (i = 0; i < srational->length; i++)
+    {
+      SRationalValue or;
+      SRationalValue cor;
+
+      or = g_array_index (srational->srational_array, SRationalValue, i);
+
+      cor.nom = or.nom;
+      cor.denom = or.denom;
+
+      rlacp = g_array_append_val (rlacp, cor);
+    }
+
+  copy->srational_array = rlacp;
+  copy->length = srational->length;
+
+  return (gpointer) copy;
+}
+
+/**
+ * srational_free:
+ *
+ * @data:          a #gpointer to a #SRational structure
+ *
+ * free part of the #SRational type
+ *
+ * Since: 2.10
+ */
+void
+srational_free (gpointer data)
+{
+  struct _SRational *srational = (struct _SRational *) data;
+
+  if (srational)
+    {
+      if (srational->srational_array)
+        g_array_free (srational->srational_array, TRUE);
+      srational->length = 0;
+    }
+}

libgimpbase/gimprational.h

@@ -0,0 +1,68 @@
+/*
+ * gimprational.h
+ *
+ *  Created on: 19.09.2014
+ *      Author: kuhse
+ */
+
+#ifndef __GIMPRATIONAL_H__
+#define __GIMPRATIONAL_H__
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define GIMP_TYPE_RATIONAL             (rational_get_type  ())
+#define GIMP_TYPE_SRATIONAL            (srational_get_type ())
+
+typedef struct _RationalValue RationalValue;
+
+struct _RationalValue
+{
+  guint nom;
+  guint denom;
+};
+
+typedef struct _SRationalValue SRationalValue;
+
+struct _SRationalValue
+{
+  gint  nom;
+  guint denom;
+};
+
+typedef struct _Rational Rational;
+
+struct _Rational
+{
+  GArray *rational_array;
+  gint length;
+};
+
+typedef struct _SRational SRational;
+
+struct _SRational
+{
+  GArray *srational_array;
+  gint length;
+};
+
+GType                          rational_get_type                     (void) G_GNUC_CONST;
+GType                          srational_get_type                    (void) G_GNUC_CONST;
+
+void                           rational_free                         (gpointer             data);
+void                           srational_free                        (gpointer             data);
+
+void                           string_to_rational                    (gchar               *string,
+                                                                      Rational           **rational);
+void                           rational_to_int                       (Rational            *rational,
+                                                                      gint               **nom,
+                                                                      gint               **denom,
+                                                                      gint                *length);
+void                           string_to_srational                   (gchar               *string,
+                                                                      SRational          **srational);
+
+
+G_END_DECLS
+
+#endif /* __GIMPRATIONAL_H__ */

libgimpwidgets/gimpdialog.c

@@ -22,6 +22,10 @@
 #include "config.h"
 
 #include <gtk/gtk.h>
+#include <glib/gstdio.h>
+
+#include "libgimpconfig/gimpconfig.h"
+#include "libgimpbase/gimpbase.h"
 
 #include "gimpwidgetstypes.h"
 
@@ -56,6 +60,11 @@ struct _GimpDialogPrivate
   GimpHelpFunc  help_func;
   gchar        *help_id;
   GtkWidget    *help_button;
+  gchar        *allocation_rc;
+  gint          dialog_width;
+  gint          dialog_height;
+  gint          dialog_x;
+  gint          dialog_y;
 };
 
 #define GET_PRIVATE(dialog) G_TYPE_INSTANCE_GET_PRIVATE (dialog, \
@@ -63,28 +72,36 @@ struct _GimpDialogPrivate
                                                          GimpDialogPrivate)
 
 
-static void       gimp_dialog_constructed  (GObject      *object);
-static void       gimp_dialog_dispose      (GObject      *object);
-static void       gimp_dialog_finalize     (GObject      *object);
-static void       gimp_dialog_set_property (GObject      *object,
-                                            guint         property_id,
-                                            const GValue *value,
-                                            GParamSpec   *pspec);
-static void       gimp_dialog_get_property (GObject      *object,
-                                            guint         property_id,
-                                            GValue       *value,
-                                            GParamSpec   *pspec);
+static void       gimp_dialog_constructed      (GObject      *object);
+static void       gimp_dialog_dispose          (GObject      *object);
+static void       gimp_dialog_finalize         (GObject      *object);
+static void       gimp_dialog_set_property     (GObject      *object,
+                                                guint         property_id,
+                                                const GValue *value,
+                                                GParamSpec   *pspec);
+static void       gimp_dialog_get_property     (GObject      *object,
+                                                guint         property_id,
+                                                GValue       *value,
+                                                GParamSpec   *pspec);
 
-static void       gimp_dialog_hide         (GtkWidget    *widget);
-static gboolean   gimp_dialog_delete_event (GtkWidget    *widget,
-                                            GdkEventAny  *event);
+static void       gimp_dialog_hide             (GtkWidget    *widget);
+static gboolean   gimp_dialog_delete_event     (GtkWidget    *widget,
+                                                GdkEventAny  *event);
 
-static void       gimp_dialog_close        (GtkDialog    *dialog);
+static void       gimp_dialog_close            (GtkDialog    *dialog);
 
-static void       gimp_dialog_help         (GObject      *dialog);
-static void       gimp_dialog_response     (GtkDialog    *dialog,
-                                            gint          response_id);
+static void       gimp_dialog_help             (GObject      *dialog);
+static void       gimp_dialog_response         (GtkDialog    *dialog,
+                                                gint          response_id);
                                             
+static void       gimp_dialog_read_context     (GtkWidget    *dialog,
+                                                gchar        *name,
+                                                GtkAllocation *allocation);
+static void       gimp_dialog_save_context     (GtkDialog    *dialog,
+                                                GtkAllocation allocation);
+
+void              gimp_dialog_unmap_callback   (GtkDialog    *dialog);
+void              gimp_dialog_map_callback     (GtkDialog    *dialog);
 
 G_DEFINE_TYPE (GimpDialog, gimp_dialog, GTK_TYPE_DIALOG)
 
@@ -446,7 +463,9 @@ gimp_dialog_new_valist (const gchar    *title,
                         const gchar    *help_id,
                         va_list         args)
 {
-  GtkWidget *dialog;
+  GtkWidget   *dialog;
+  const gchar *prog_name;
+  const gchar *gimp_basename;
 
   g_return_val_if_fail (title != NULL, NULL);
   g_return_val_if_fail (role != NULL, NULL);
@@ -461,6 +480,9 @@ gimp_dialog_new_valist (const gchar    *title,
                          "parent",    parent,
                          NULL);
 
+  prog_name = g_get_prgname ();
+  gimp_basename = g_getenv ("GIMP_PROG_BASENAME");
+
   if (parent)
     {
       if (flags & GTK_DIALOG_DESTROY_WITH_PARENT)
@@ -468,6 +490,27 @@ gimp_dialog_new_valist (const gchar    *title,
                                  G_CALLBACK (gimp_dialog_close),
                                  dialog, G_CONNECT_SWAPPED);
     }
+  else
+    {
+      if (dialog && strcmp (prog_name, gimp_basename))
+        {
+          GimpDialogPrivate *private = GET_PRIVATE (dialog);
+          GtkAllocation      allocation;
+
+          g_printerr ("allocating: %s\n", role);
+
+          private->allocation_rc = g_strdup (role);
+          gimp_dialog_read_context(dialog, private->allocation_rc, &allocation);
+
+          private->dialog_x = allocation.x;
+          private->dialog_y = allocation.y;
+          private->dialog_width = allocation.width;
+          private->dialog_height = allocation.height;
+
+          g_signal_connect(GTK_WIDGET(dialog), "unmap", G_CALLBACK(gimp_dialog_unmap_callback), NULL);
+          g_signal_connect (GTK_WIDGET(dialog), "map-event", G_CALLBACK (gimp_dialog_map_callback), NULL);
+        }
+    }
 
   gimp_dialog_add_buttons_valist (GIMP_DIALOG (dialog), args);
 
@@ -686,3 +729,244 @@ gimp_dialogs_show_help_button (gboolean  show)
 {
   show_help_button = show ? TRUE : FALSE;
 }
+
+enum
+{
+  POS_X,
+  POS_Y,
+  WIDTH,
+  HEIGHT
+};
+
+static void
+gimp_dialog_read_context(GtkWidget *dialog, gchar *name, GtkAllocation *allocation)
+{
+  GimpDialogPrivate *private = GET_PRIVATE (dialog);
+  gchar             *options_path;
+  GFile             *options_dir;
+  GFile             *options_file;
+  GScanner          *scanner;
+  GTokenType         token;
+  GError            *error = NULL;
+  gint               x=0, y=0, width=0, height=0;
+
+  allocation->height = height;
+  allocation->width = width;
+  allocation->x = x;
+  allocation->y = y;
+
+  g_return_if_fail (private->allocation_rc != NULL);
+
+  options_path = g_build_filename (g_strdup (gimp_directory ()),
+                                   "plugin-options",
+                                   NULL);
+
+  options_dir = g_file_new_for_path (options_path);
+  options_file = g_file_get_child(options_dir, g_strconcat (private->allocation_rc, ".rc", NULL));
+
+  scanner = gimp_scanner_new_gfile (options_file, &error);
+
+  if (! scanner)
+    {
+      g_clear_error (&error);
+      g_free (options_path);
+      g_object_unref (options_dir);
+      g_object_unref (options_file);
+      return;
+    }
+
+  g_scanner_scope_add_symbol (scanner, 0, "pos-x",
+                              GINT_TO_POINTER (POS_X));
+  g_scanner_scope_add_symbol (scanner, 0,  "pos-y",
+                              GINT_TO_POINTER (POS_Y));
+  g_scanner_scope_add_symbol (scanner, 0,  "width",
+                              GINT_TO_POINTER (WIDTH));
+  g_scanner_scope_add_symbol (scanner, 0,  "height",
+                              GINT_TO_POINTER (HEIGHT));
+
+  token = G_TOKEN_LEFT_PAREN;
+
+  while (g_scanner_peek_next_token (scanner) == token)
+    {
+      token = g_scanner_get_next_token (scanner);
+
+      switch (token)
+        {
+        case G_TOKEN_LEFT_PAREN:
+          token = G_TOKEN_SYMBOL;
+          break;
+
+        case G_TOKEN_SYMBOL:
+          if (scanner->value.v_symbol == GINT_TO_POINTER (POS_X))
+            {
+              token = G_TOKEN_IDENTIFIER;
+
+              if (! gimp_scanner_parse_int (scanner, &x))
+                break;
+            }
+          else if (scanner->value.v_symbol == GINT_TO_POINTER (POS_Y))
+            {
+              token = G_TOKEN_IDENTIFIER;
+
+              if (! gimp_scanner_parse_int (scanner, &y))
+                break;
+            }
+          else if (scanner->value.v_symbol == GINT_TO_POINTER (WIDTH))
+            {
+              token = G_TOKEN_IDENTIFIER;
+
+              if (! gimp_scanner_parse_int (scanner, &width))
+                break;
+            }
+          else if (scanner->value.v_symbol == GINT_TO_POINTER (HEIGHT))
+            {
+              token = G_TOKEN_IDENTIFIER;
+
+              if (! gimp_scanner_parse_int (scanner, &height))
+                break;
+            }
+          token = G_TOKEN_RIGHT_PAREN;
+
+          break;
+
+        case G_TOKEN_RIGHT_PAREN:
+          token = G_TOKEN_LEFT_PAREN;
+          break;
+
+        default: /* do nothing */
+          break;
+        }
+    }
+
+  if (token != G_TOKEN_LEFT_PAREN)
+    {
+      g_scanner_get_next_token (scanner);
+      g_scanner_unexp_token (scanner, token, NULL, NULL, NULL, "fatal parse error", TRUE);
+    }
+
+  if (error)
+    {
+      g_print("error: %s\n", error->message);
+      g_clear_error (&error);
+    }
+
+  allocation->height = height;
+  allocation->width = width;
+  allocation->x = x;
+  allocation->y = y;
+
+  gimp_scanner_destroy (scanner);
+
+  g_free (options_path);
+  g_object_unref (options_dir);
+  g_object_unref (options_file);
+}
+
+static void
+gimp_dialog_save_context(GtkDialog *dialog, GtkAllocation allocation)
+{
+  GimpDialogPrivate *private = GET_PRIVATE (dialog);
+  gchar             *options_path;
+  GFile             *options_dir;
+  GFile             *options_file;
+  GimpConfigWriter  *writer;
+  GError            *error = NULL;
+
+  g_return_if_fail (private->allocation_rc != NULL);
+
+  options_path = g_build_filename (g_strdup (gimp_directory ()),
+                                   "plugin-options",
+                                   NULL);
+
+  options_dir = g_file_new_for_path (options_path);
+
+  if (! g_file_query_exists (options_dir, NULL))
+    {
+      g_file_make_directory (options_dir, NULL, &error);
+    }
+
+  if (error)
+    {
+      g_clear_error (&error);
+      g_free (options_path);
+      g_object_unref (options_dir);
+      return;
+    }
+
+  g_clear_error (&error);
+
+  options_file = g_file_get_child(options_dir, g_strconcat (private->allocation_rc, ".rc", NULL));
+
+  writer =
+    gimp_config_writer_new_gfile (options_file,
+                                  TRUE,
+                                  "start of file\n",
+                                  NULL);
+  g_object_unref (options_dir);
+  g_object_unref (options_file);
+  g_free (options_path);
+
+  if (!writer)
+    {
+      return;
+    }
+
+  gimp_config_writer_open (writer, "pos-x");
+  gimp_config_writer_printf (writer, "%d", allocation.x);
+  gimp_config_writer_close (writer);
+  gimp_config_writer_open (writer, "pos-y");
+  gimp_config_writer_printf (writer, "%d", allocation.y);
+  gimp_config_writer_close (writer);
+  gimp_config_writer_open (writer, "width");
+  gimp_config_writer_printf (writer, "%d", allocation.width);
+  gimp_config_writer_close (writer);
+  gimp_config_writer_open (writer, "height");
+  gimp_config_writer_printf (writer, "%d", allocation.height);
+  gimp_config_writer_close (writer);
+
+  if (! gimp_config_writer_finish (writer, "end of file", &error))
+    {
+      g_clear_error (&error);
+    }
+}
+
+void
+gimp_dialog_unmap_callback (GtkDialog *dialog)
+{
+  GtkAllocation  allocation;
+  GdkRectangle   rect;
+  gint           dx, dy, dw, dh, dd;
+  gint           monitor;
+  GdkWindow     *window = gtk_widget_get_window (GTK_WIDGET(dialog));
+  GdkScreen     *screen = gtk_widget_get_screen (GTK_WIDGET(dialog));
+
+  gdk_window_get_frame_extents (window, &rect);
+  gdk_window_get_geometry (window, &dx, &dy, &dw, &dh, &dd);
+
+  if (window)
+    monitor = gdk_screen_get_monitor_at_window (screen, window);
+
+  allocation.x=rect.x;
+  allocation.y=rect.y;
+  allocation.width=dw;
+  allocation.height=dh;
+
+  gimp_dialog_save_context(dialog, allocation);
+}
+
+void
+gimp_dialog_map_callback (GtkDialog *dialog)
+{
+  GimpDialogPrivate *private = GET_PRIVATE (dialog);
+  GdkWindow         *window = gtk_widget_get_window (GTK_WIDGET(dialog));
+
+  if(private->dialog_width > 0 && private->dialog_height > 0)
+    {
+      gdk_window_move_resize (window,
+                              private->dialog_x,
+                              private->dialog_y,
+                              private->dialog_width,
+                              private->dialog_height);
+
+    }
+}

libgimpwidgets/gimpicons.c

@@ -166,6 +166,7 @@ static const GtkStockItem gimp_stock_items[] =
   { GIMP_STOCK_TOOL_PRESET,              NULL,        0, 0, LIBGIMP_DOMAIN },
 
   { GIMP_STOCK_IMAGE,                    NULL,        0, 0, LIBGIMP_DOMAIN },
+  { GIMP_STOCK_IMAGE_METADATA,           NULL,        0, 0, LIBGIMP_DOMAIN },
   { GIMP_STOCK_LAYER,                    NULL,        0, 0, LIBGIMP_DOMAIN },
   { GIMP_STOCK_TEXT_LAYER,               NULL,        0, 0, LIBGIMP_DOMAIN },
   { GIMP_STOCK_FLOATING_SELECTION,       NULL,        0, 0, LIBGIMP_DOMAIN },

libgimpwidgets/gimpicons.h

@@ -182,6 +182,7 @@ G_BEGIN_DECLS
 #define GIMP_STOCK_FLIP_VERTICAL            "gimp-flip-vertical"
 
 #define GIMP_STOCK_IMAGE                    "gimp-image"
+#define GIMP_STOCK_IMAGE_METADATA           "gimp-image-metadata"
 #define GIMP_STOCK_LAYER                    "gimp-layer"
 #define GIMP_STOCK_TEXT_LAYER               "gimp-text-layer"
 #define GIMP_STOCK_FLOATING_SELECTION       "gimp-floating-selection"

plug-ins/Makefile.am

@@ -55,6 +55,7 @@ SUBDIRS = \
 	imagemap		\
 	lighting		\
 	map-object		\
+	metainfo		\
 	pagecurl		\
 	$(print)		\
 	screenshot		\

plug-ins/common/Makefile.am

@@ -52,6 +52,7 @@ libexec_PROGRAMS = \
 	align-layers \
 	animation-optimize \
 	animation-play \
+	attributes	\
 	blinds \
 	blur \
 	border-average \
@@ -116,10 +117,10 @@ libexec_PROGRAMS = \
 	grid \
 	guillotine \
 	hot \
+	iptc	\
 	jigsaw \
 	$(MAIL) \
 	max-rgb \
-	metadata \
 	newsprint \
 	nl-filter \
 	oilify \
@@ -218,6 +219,24 @@ animation_play_LDADD = \
 	$(INTLLIBS)		\
 	$(animation_play_RC)
 
+attributes_SOURCES = \
+	attributes.c
+
+attributes_LDADD = \
+	$(libgimpui)		\
+	$(libgimpwidgets)	\
+	$(libgimpmodule)	\
+	$(libgimp)		\
+	$(libgimpmath)		\
+	$(libgimpconfig)	\
+	$(libgimpcolor)		\
+	$(libgimpbase)		\
+	$(GTK_LIBS)		\
+	$(GEGL_LIBS)		\
+	$(RT_LIBS)		\
+	$(INTLLIBS)		\
+	$(attributes_RC)
+
 blinds_SOURCES = \
 	blinds.c
 
@@ -1354,6 +1373,26 @@ hot_LDADD = \
 	$(INTLLIBS)		\
 	$(hot_RC)
 
+iptc_CFLAGS = $(GEXIV2_CFLAGS)
+
+iptc_SOURCES = \
+	iptc.c
+
+iptc_LDADD = \
+	$(libgimpui)		\
+	$(libgimpwidgets)	\
+	$(libgimpmodule)	\
+	$(libgimp)		\
+	$(libgimpmath)		\
+	$(libgimpconfig)	\
+	$(libgimpcolor)		\
+	$(libgimpbase)		\
+	$(GTK_LIBS)		\
+	$(GEXIV2_LIBS)		\
+	$(RT_LIBS)		\
+	$(INTLLIBS)		\
+	$(iptc_RC)
+
 jigsaw_SOURCES = \
 	jigsaw.c
 
@@ -1405,26 +1444,6 @@ max_rgb_LDADD = \
 	$(INTLLIBS)		\
 	$(max_rgb_RC)
 
-metadata_CFLAGS = $(GEXIV2_CFLAGS)
-
-metadata_SOURCES = \
-	metadata.c
-
-metadata_LDADD = \
-	$(libgimpui)		\
-	$(libgimpwidgets)	\
-	$(libgimpmodule)	\
-	$(libgimp)		\
-	$(libgimpmath)		\
-	$(libgimpconfig)	\
-	$(libgimpcolor)		\
-	$(libgimpbase)		\
-	$(GTK_LIBS)		\
-	$(GEXIV2_LIBS)		\
-	$(RT_LIBS)		\
-	$(INTLLIBS)		\
-	$(metadata_RC)
-
 newsprint_SOURCES = \
 	newsprint.c
 

plug-ins/common/attributes.c

@@ -0,0 +1,949 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * attributes.c
+ * Copyright (C) 2014 Hartmut Kuhse <hatti@gimp.org>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * additions: share/gimp/2.0/ui/plug-ins/plug-in-attributes.ui
+ * This plug-in reads in a (libgimpbase/gimpattributes.c) object and
+ * presents it:
+ * as GtkTreeView lists
+ * in a GtkNotebook.
+ * The GtkNotebook pages represents the type of attributes, as "exif",
+ * "xmp", "iptc" or more.
+ * The expanders of the GtkTreeView represents the IFD (Exif) or Key (XMP, IPTC).
+ * of the attribute.
+ * The list entry of the GtkTreeView represents the tag of the attribute.
+ */
+
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#include <glib/gstdio.h>
+#include <gio/gio.h>
+
+#ifdef G_OS_WIN32
+#include <io.h>
+#endif
+
+#include <gtk/gtk.h>
+#include <gexiv2/gexiv2.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+#include <libgimpbase/gimpbase.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_IMAGE_PROC     "plug-in-image-attributes-viewer"
+#define PLUG_IN_LAYER_PROC     "plug-in-layer-attributes-viewer"
+#define PLUG_IN_HELP           "plug-in-attributes-viewer"
+#define PLUG_IN_BINARY         "attributes"
+
+#define THUMB_SIZE       48
+#define RESPONSE_EXPORT   1
+#define RESPONSE_GPS      3
+
+typedef enum
+{
+  ATT_IMAGE,
+  ATT_LAYER,
+  ATT_CHANNEL
+} AttributesSource;
+
+enum
+{
+  C_IFD = 0,
+  C_TAG,
+  C_VALUE,
+  C_SORT,
+  NUM_COL
+};
+
+/*  local function prototypes  */
+
+static void            query                              (void);
+static void            run                                (const gchar      *name,
+                                                           gint              nparams,
+                                                           const GimpParam  *param,
+                                                           gint             *nreturn_vals,
+                                                           GimpParam       **return_vals);
+static void            attributes_dialog_response         (GtkWidget        *widget,
+                                                           gint              response_id,
+                                                           gpointer          data);
+static gboolean        attributes_dialog                  (gint32            image_id,
+                                                           AttributesSource  source,
+                                                           GimpAttributes   *attributes);
+static void            attributes_dialog_set_attributes   (GimpAttributes   *attributes,
+                                                           GtkBuilder       *builder);
+static GtkTreeIter    *attributes_get_parent              (const gchar      *type,
+                                                           const gchar      *name);
+static void            attributes_add_parent              (const gchar      *type,
+                                                           const gchar      *name,
+                                                           GtkTreeIter      *iter);
+static GtkTreeStore   *attributes_notebook_page_get       (GtkWidget        *notebook,
+                                                           const gchar      *name);
+static GtkWidget      *attributes_treeview_new            (void);
+static void            attributes_file_export_dialog      (GtkWidget        *parent,
+                                                           GimpAttributes   *attributes);
+static void            attributes_export_dialog_response  (GtkWidget        *dlg,
+                                                           gint              response_id,
+                                                           gpointer          data);
+static void            attributes_show_gps                (GtkWidget        *parent,
+                                                           GimpAttributes   *attributes);
+
+static void            attributes_message_dialog          (GtkMessageType    type,
+                                                           GtkWindow        *parent,
+                                                           const gchar      *title,
+                                                           const gchar      *message);
+
+/* local variables */
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+  NULL,  /* init_proc  */
+  NULL,  /* quit_proc  */
+  query, /* query_proc */
+  run,   /* run_proc   */
+};
+
+static GHashTable *ifd_table = NULL;
+static GHashTable *tab_table = NULL;
+
+static gchar      *item_name = NULL;
+
+static GtkWidget   *gps_button;
+static gdouble      gps_latitude       = 0.0;
+static gdouble      gps_longitude      = 0.0;
+static gchar       *gps_latitude_ref   = "N";
+static gchar       *gps_longitude_ref  = "W";
+
+/*  functions  */
+
+MAIN ()
+
+static void
+query (void)
+{
+  static const GimpParamDef image_attribs_args[] =
+  {
+    { GIMP_PDB_INT32, "run-mode", "Run mode { RUN-INTERACTIVE (0) }" },
+    { GIMP_PDB_IMAGE, "image",    "Input image"                      }
+  };
+
+  static const GimpParamDef layer_attribs_args[] =
+  {
+    { GIMP_PDB_INT32, "run-mode", "Run mode { RUN-INTERACTIVE (0) }" },
+    { GIMP_PDB_IMAGE, "image",    "Input image"                      },
+    { GIMP_PDB_LAYER, "layer",    "Input layer"                      }
+  };
+
+  gimp_install_procedure (PLUG_IN_IMAGE_PROC,
+                          N_("View attributes (Exif, IPTC, XMP, ...)"),
+                          "View attributes information attached to the "
+                          "current image.  This can include Exif, IPTC, "
+                          "XMP and/or other information. Some or all of these "
+                          "attributes will be saved in the file, depending on "
+                          "the output file format.",
+                          "Hartmut Kuhse",
+                          "Hartmut Kuhse",
+                          "2014",
+                          N_("Image Attributes"),
+                          "*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (image_attribs_args), 0,
+                          image_attribs_args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_IMAGE_PROC, "<Image>/Image");
+  gimp_plugin_icon_register (PLUG_IN_IMAGE_PROC, GIMP_ICON_TYPE_ICON_NAME,
+                             (const guint8 *) GIMP_STOCK_IMAGE_METADATA); 
+
+  gimp_install_procedure (PLUG_IN_LAYER_PROC,
+                          N_("View attributes (Exif, IPTC, XMP, ...)"),
+                          "View attributes information attached to the "
+                          "current layer.  This can include Exif, IPTC, "
+                          "XMP and/or other information.",
+                          "Hartmut Kuhse",
+                          "Hartmut Kuhse",
+                          "2014",
+                          N_("Layer Attributes"),
+                          "*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (layer_attribs_args), 0,
+                          layer_attribs_args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_LAYER_PROC, "<Layers>");
+  gimp_plugin_icon_register (PLUG_IN_LAYER_PROC, GIMP_ICON_TYPE_ICON_NAME,
+                             (const guint8 *) GIMP_STOCK_IMAGE_METADATA); 
+
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  GimpAttributes   *attributes;
+  AttributesSource   source;
+  gint32             item_ID;
+  static GimpParam   values[1];
+  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+
+  INIT_I18N();
+  gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+  if (! strcmp (name, PLUG_IN_IMAGE_PROC))
+    {
+      item_ID = param[1].data.d_image;
+
+      attributes = gimp_image_get_attributes (item_ID);
+      source = ATT_IMAGE;
+
+      status = GIMP_PDB_SUCCESS;
+    }
+  else if (! strcmp (name, PLUG_IN_LAYER_PROC))
+    {
+      item_ID = param[2].data.d_layer;
+
+      attributes = gimp_item_get_attributes (item_ID);
+      source = ATT_LAYER;
+
+      status = GIMP_PDB_SUCCESS;
+    }
+  else
+    {
+      status = GIMP_PDB_CALLING_ERROR;
+    }
+
+  if (attributes)
+    {
+      ifd_table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+      tab_table = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, NULL);
+      attributes_dialog (item_ID, source, attributes);
+    }
+  else
+    {
+      g_message (_("This image has no attributes attached to it."));
+    }
+
+  if (attributes)
+    g_object_unref (attributes);
+
+  if (ifd_table)
+    g_hash_table_unref (ifd_table);
+
+  values[0].data.d_status = status;
+}
+
+static void
+attributes_dialog_response (GtkWidget *widget,
+                            gint       response_id,
+                            gpointer   data)
+{
+
+  GimpAttributes *attributes = (GimpAttributes *) data;
+  switch (response_id)
+    {
+    case RESPONSE_EXPORT:
+      attributes_file_export_dialog (widget, attributes);
+      break;
+    case RESPONSE_GPS:
+      attributes_show_gps (widget, attributes);
+      break;
+
+    default:
+      gtk_widget_destroy (widget);
+      break;
+    }
+}
+
+static gboolean
+attributes_dialog (gint32           item_id,
+                   AttributesSource source,
+                   GimpAttributes  *attributes)
+{
+  GtkBuilder *builder;
+  GtkWidget  *dialog;
+  GtkWidget  *attributes_vbox;
+  GtkWidget  *content_area;
+  GdkPixbuf  *pixbuf;
+  GtkWidget  *label_header;
+  GtkWidget  *label_info;
+  GtkWidget  *thumb_box;
+
+  gchar      *header;
+  gchar      *ui_file;
+  gchar      *title;
+  gchar      *role;
+  GError     *error = NULL;
+
+  gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+  switch (source)
+  {
+    case ATT_IMAGE:
+      item_name = g_filename_display_basename (gimp_image_get_uri (item_id));
+      header  = g_strdup_printf ("Image");
+      role  = g_strdup_printf ("gimp-image-attributes-dialog");
+      pixbuf = gimp_image_get_thumbnail (item_id, THUMB_SIZE, THUMB_SIZE,
+                                         GIMP_PIXBUF_SMALL_CHECKS);
+
+      break;
+    case ATT_LAYER:
+      item_name = gimp_item_get_name (item_id);
+      header  = g_strdup_printf ("Layer");
+      role  = g_strdup_printf ("gimp-layer-attributes-dialog");
+      pixbuf = gimp_drawable_get_thumbnail (item_id, THUMB_SIZE, THUMB_SIZE,
+                                            GIMP_PIXBUF_SMALL_CHECKS);
+      break;
+    default:
+      item_name = g_strdup_printf ("unknown");
+      header  = g_strdup_printf ("Unknown");
+      role  = g_strdup_printf ("gimp-attributes-dialog");
+      pixbuf = NULL;
+      break;
+  }
+
+  title = g_strdup_printf ("Attributes: %s", item_name);
+
+  builder = gtk_builder_new ();
+
+  ui_file = g_build_filename (gimp_data_directory (),
+                              "ui", "plug-ins", "plug-in-attributes.ui", NULL);
+
+  if (! gtk_builder_add_from_file (builder, ui_file, &error))
+    {
+      g_printerr ("Error occured while loading UI file!\n");
+      g_printerr ("Message: %s\n", error->message);
+      g_clear_error (&error);
+      g_free (ui_file);
+      g_object_unref (builder);
+      return FALSE;
+    }
+
+  g_free (ui_file);
+
+  dialog = gimp_dialog_new (title,
+                            role,
+                            NULL, 0,
+                            gimp_standard_help_func, PLUG_IN_HELP,
+                            _("_Export XMP..."), RESPONSE_EXPORT,
+                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
+                            NULL);
+
+  gps_button = gtk_dialog_add_button (GTK_DIALOG (dialog), _("_Show GPS..."), RESPONSE_GPS);
+  gtk_widget_set_sensitive (GTK_WIDGET (gps_button), FALSE);
+
+  g_signal_connect (dialog, "response",
+                    G_CALLBACK (attributes_dialog_response),
+                    attributes);
+
+  g_signal_connect (dialog, "destroy",
+                    G_CALLBACK (gtk_main_quit),
+                    NULL);
+
+  g_free (title);
+  g_free (role);
+
+  gtk_window_set_default_size (GTK_WINDOW (dialog),
+                               650,
+                               550);
+
+  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+                                           RESPONSE_GPS,
+                                           RESPONSE_EXPORT,
+                                           GTK_RESPONSE_CLOSE,
+                                           -1);
+
+  content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+  attributes_vbox = GTK_WIDGET (gtk_builder_get_object (builder,
+                                                      "attributes-vbox"));
+  gtk_container_set_border_width (GTK_CONTAINER (attributes_vbox), 2);
+  gtk_box_pack_start (GTK_BOX (content_area), attributes_vbox, TRUE, TRUE, 0);
+
+  label_header = GTK_WIDGET (gtk_builder_get_object (builder, "label-header"));
+  gimp_label_set_attributes (GTK_LABEL (label_header),
+                             PANGO_ATTR_SCALE,  PANGO_SCALE_LARGE,
+                             PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
+                             -1);
+  gtk_label_set_text (GTK_LABEL (label_header), header);
+
+  label_info = GTK_WIDGET (gtk_builder_get_object (builder, "label-info"));
+  gimp_label_set_attributes (GTK_LABEL (label_info),
+                             PANGO_ATTR_SCALE,  PANGO_SCALE_SMALL,
+                             -1);
+  gtk_label_set_text (GTK_LABEL (label_info), item_name);
+
+  g_free (header);
+
+  if (pixbuf)
+    {
+      GtkWidget *image;
+
+      thumb_box = GTK_WIDGET (gtk_builder_get_object (builder, "thumb-box"));
+
+      if (thumb_box)
+        {
+          image = gtk_image_new_from_pixbuf (pixbuf);
+          gtk_box_pack_end (GTK_BOX (thumb_box), image, FALSE, FALSE, 0);
+          gtk_widget_show (image);
+        }
+    }
+
+  attributes_dialog_set_attributes (attributes, builder);
+
+  gtk_widget_show (GTK_WIDGET (dialog));
+
+  gtk_main ();
+
+  return TRUE;
+}
+
+
+/*  private functions  */
+
+static void
+attributes_dialog_set_attributes (GimpAttributes *attributes,
+                                  GtkBuilder     *builder)
+{
+  GtkTreeStore   *exif_store;
+  GtkTreeStore   *xmp_store;
+  GtkTreeStore   *iptc_store;
+  GtkTreeView    *exif_treeview;
+  GtkTreeView    *xmp_treeview;
+  GtkTreeView    *iptc_treeview;
+  GtkWidget      *attributes_notebook;
+  GList          *iter_list   = NULL;
+  GimpAttribute  *attribute   = NULL;
+  gboolean        gps_lat     = FALSE;
+  gboolean        gps_lon     = FALSE;
+
+  exif_store = GTK_TREE_STORE (gtk_builder_get_object (builder,
+                                                       "exif-treestore"));
+  xmp_store  = GTK_TREE_STORE (gtk_builder_get_object (builder,
+                                                       "xmp-treestore"));
+  iptc_store  = GTK_TREE_STORE (gtk_builder_get_object (builder,
+                                                       "iptc-treestore"));
+
+  exif_treeview = GTK_TREE_VIEW (gtk_builder_get_object (builder,
+                                                       "exif-treeview"));
+  xmp_treeview = GTK_TREE_VIEW (gtk_builder_get_object (builder,
+                                                       "xmp-treeview"));
+  iptc_treeview = GTK_TREE_VIEW (gtk_builder_get_object (builder,
+                                                       "iptc-treeview"));
+
+  attributes_notebook = GTK_WIDGET (gtk_builder_get_object (builder,
+                                                       "attributes-notebook"));
+
+  gimp_attributes_iter_init (attributes, &iter_list);
+
+  while (gimp_attributes_iter_next (attributes, &attribute, &iter_list))
+    {
+      const gchar    *name;
+      const gchar    *type;
+      const gchar    *ifd;
+      const gchar    *tag;
+      const gchar    *value;
+      const gchar    *tag_sorted;
+      gchar          *value_utf;
+      GtkTreeIter    *parent = NULL;
+      GtkTreeIter    *iter = g_slice_new (GtkTreeIter);
+
+      name       = gimp_attribute_get_name (attribute);
+      type       = gimp_attribute_get_attribute_type (attribute);
+      ifd        = gimp_attribute_get_attribute_ifd (attribute);
+      tag        = gimp_attribute_get_attribute_tag (attribute);
+      tag_sorted = gimp_attribute_get_sortable_name (attribute);
+      value      = gimp_attribute_get_interpreted_string (attribute);
+
+      if (! g_utf8_validate (value, -1, NULL))
+        value_utf = g_locale_to_utf8 (value, -1, NULL, NULL, NULL);
+      else
+        value_utf = g_strdup (value);
+
+      parent = attributes_get_parent (type, ifd);
+
+      if (! g_strcmp0 (name, "Exif.GPSInfo.GPSLatitude"))
+        {
+          gps_lat = TRUE;
+          gps_latitude = gimp_attribute_get_gps_degree (attribute);
+          if (gps_latitude < 0.0 && !gps_latitude_ref)
+            {
+              gps_latitude = gps_latitude * -1.0;
+              gps_latitude_ref = "S";
+            }
+
+        }
+      if (! g_strcmp0 (name, "Exif.GPSInfo.GPSLatitudeRef"))
+        {
+          gps_latitude_ref = gimp_attribute_get_string (attribute);
+        }
+      if (! g_strcmp0 (name, "Exif.GPSInfo.GPSLongitude"))
+        {
+          gps_lon = TRUE;
+          gps_longitude = gimp_attribute_get_gps_degree (attribute);
+          if (gps_longitude < 0.0 && !gps_longitude_ref)
+            {
+              gps_longitude = gps_longitude * -1.0;
+              gps_longitude_ref = "W";
+            }
+        }
+      if (! g_strcmp0 (name, "Exif.GPSInfo.GPSLongitudeRef"))
+        {
+          gps_longitude_ref = gimp_attribute_get_string (attribute);
+        }
+
+      if (gps_lat && gps_lon)
+        {
+          gtk_widget_set_sensitive (gps_button, TRUE);
+          gps_lat = FALSE;
+          gps_lon = FALSE;
+        }
+
+      switch (gimp_attribute_get_tag_type (attribute))
+      {
+        case TAG_EXIF:
+          {
+            gtk_tree_store_append (exif_store, iter, parent);
+
+            if (!parent)
+              {
+                GtkTreeIter child;
+                gtk_tree_store_set (exif_store, iter,
+                                    C_IFD, ifd,
+                                    C_TAG, "",
+                                    C_VALUE, "",
+                                    C_SORT, "",
+                                    -1);
+                parent = iter;
+                gtk_tree_store_append (exif_store, &child, parent);
+                gtk_tree_store_set (exif_store, &child,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+                attributes_add_parent (type, ifd, parent);
+              }
+            else
+              {
+
+                gtk_tree_store_set (exif_store, iter,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+              }
+          }
+          break;
+        case TAG_XMP:
+          {
+            gtk_tree_store_append (xmp_store, iter, parent);
+            if (!parent)
+              {
+                GtkTreeIter child;
+                gtk_tree_store_set (xmp_store, iter,
+                                    C_IFD, ifd,
+                                    C_TAG, "",
+                                    C_VALUE, "",
+                                    C_SORT, "",
+                                    -1);
+                parent = iter;
+                gtk_tree_store_append (xmp_store, &child, parent);
+                gtk_tree_store_set (xmp_store, &child,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+                attributes_add_parent (type, ifd, parent);
+              }
+            else
+              {
+
+                gtk_tree_store_set (xmp_store, iter,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+              }
+          }
+          break;
+        case TAG_IPTC:
+          {
+            gtk_tree_store_append (iptc_store, iter, parent);
+            if (!parent)
+              {
+                GtkTreeIter child;
+                gtk_tree_store_set (iptc_store, iter,
+                                    C_IFD, ifd,
+                                    C_TAG, "",
+                                    C_VALUE, "",
+                                    C_SORT, "",
+                                    -1);
+                parent = iter;
+                gtk_tree_store_append (iptc_store, &child, parent);
+                gtk_tree_store_set (iptc_store, &child,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+                attributes_add_parent (type, ifd, parent);
+              }
+            else
+              {
+
+                gtk_tree_store_set (iptc_store, iter,
+                                    C_IFD, "",
+                                    C_TAG, tag,
+                                    C_VALUE, value_utf,
+                                    C_SORT, tag_sorted,
+                                    -1);
+              }
+          }
+          break;
+        default:
+          {
+            GtkTreeStore   *treestore;
+            GtkTreeIter     iter;
+
+            treestore = attributes_notebook_page_get (attributes_notebook, type);
+
+            gtk_tree_store_append (treestore, &iter, NULL);
+            gtk_tree_store_set (treestore, &iter,
+                                C_IFD, "",
+                                C_TAG, name,
+                                C_VALUE, value_utf,
+                                -1);
+          }
+          break;
+      }
+    }
+  gtk_tree_view_expand_all (exif_treeview);
+  gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(exif_store),
+                                       C_SORT, GTK_SORT_ASCENDING);
+
+  gtk_tree_view_expand_all (xmp_treeview);
+  gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(xmp_store),
+                                       C_SORT, GTK_SORT_ASCENDING);
+  gtk_tree_view_expand_all (iptc_treeview);
+  gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(iptc_store),
+                                       C_SORT, GTK_SORT_ASCENDING);
+}
+
+static GtkTreeIter *
+attributes_get_parent (const gchar *type, const gchar *name)
+{
+  gchar          *key;
+  gchar          *lowchar;
+  GtkTreeIter    *iter;
+  gpointer       *data;
+
+  key = g_strdup_printf ("%s.%s", type, name);
+  lowchar = g_ascii_strdown (key, -1);
+  g_free (key);
+
+  data = g_hash_table_lookup (ifd_table, (gpointer) lowchar);
+  g_free (lowchar);
+
+  if (data)
+    {
+      iter = (GtkTreeIter *) data;
+      return iter;
+    }
+  else
+    {
+      return NULL;
+    }
+}
+
+static void
+attributes_add_parent (const gchar *type, const gchar *name, GtkTreeIter *iter)
+{
+  gchar          *key;
+  gchar          *lowchar;
+
+  key = g_strdup_printf ("%s.%s", type, name);
+  lowchar = g_ascii_strdown (key, -1);
+  g_free (key);
+
+  g_hash_table_insert (ifd_table, (gpointer) lowchar, (gpointer) iter);
+
+}
+
+static GtkTreeStore *
+attributes_notebook_page_get (GtkWidget *notebook,
+                              const gchar *name)
+{
+  GtkWidget        *scrolledwindow;
+  GtkWidget        *treeview;
+  gchar            *lowchar;
+  gpointer         *data;
+  GtkTreeStore     *treestore;
+
+  lowchar = g_ascii_strdown (name, -1);
+
+  data = g_hash_table_lookup (tab_table, (gpointer) lowchar);
+
+  if (data)
+    {
+      treestore = (GtkTreeStore *) data;
+      g_free (lowchar);
+    }
+  else
+    {
+      treeview = attributes_treeview_new ();
+
+      scrolledwindow = gtk_scrolled_window_new (NULL, NULL);
+      gtk_widget_show (scrolledwindow);
+      gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolledwindow), GTK_SHADOW_IN);
+
+      gtk_widget_show (treeview);
+      gtk_container_add (GTK_CONTAINER (scrolledwindow), treeview);
+      gtk_tree_view_set_enable_search (GTK_TREE_VIEW (treeview), FALSE);
+
+      gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
+                                scrolledwindow,
+                                gtk_label_new (name));
+
+      treestore = GTK_TREE_STORE (gtk_tree_view_get_model (GTK_TREE_VIEW (treeview)));
+
+      g_hash_table_insert (tab_table, (gpointer) lowchar, (gpointer) treestore);
+    }
+  return treestore;
+}
+
+static GtkWidget *
+attributes_treeview_new (void)
+{
+  GtkWidget        *treeview;
+  GtkTreeStore     *treestore;
+  GtkCellRenderer  *ifd_renderer;
+  GtkCellRenderer  *tag_renderer;
+  GtkCellRenderer  *val_renderer;
+  GtkTreeViewColumn *ifd_column;
+  GtkTreeViewColumn *tag_column;
+  GtkTreeViewColumn *val_column;
+
+  ifd_renderer = gtk_cell_renderer_text_new ();
+  tag_renderer = gtk_cell_renderer_text_new ();
+  val_renderer = gtk_cell_renderer_text_new ();
+  treestore = gtk_tree_store_new (NUM_COL, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_STRING);
+  treeview = gtk_tree_view_new ();
+  gtk_tree_view_set_model(GTK_TREE_VIEW (treeview), GTK_TREE_MODEL(treestore));
+
+  ifd_column = gtk_tree_view_column_new_with_attributes ("", ifd_renderer, "text", C_IFD, NULL);
+  tag_column = gtk_tree_view_column_new_with_attributes ("Tag", tag_renderer, "text", C_TAG, NULL);
+  val_column = gtk_tree_view_column_new_with_attributes ("Value", val_renderer, "text", C_VALUE, NULL);
+
+  gtk_tree_view_column_set_resizable (ifd_column, TRUE);
+  gtk_tree_view_column_set_resizable (tag_column, TRUE);
+  gtk_tree_view_column_set_resizable (val_column, TRUE);
+
+  gtk_tree_view_insert_column (GTK_TREE_VIEW (treeview), ifd_column, -1);
+  gtk_tree_view_insert_column (GTK_TREE_VIEW (treeview), tag_column, -1);
+  gtk_tree_view_insert_column (GTK_TREE_VIEW (treeview), val_column, -1);
+
+  return treeview;
+}
+
+/* select file to export */
+static void
+attributes_file_export_dialog (GtkWidget      *parent,
+                               GimpAttributes *attributes)
+{
+  static GtkWidget *dlg = NULL;
+  gchar            *suggest_file;
+//                                          GTK_WINDOW (parent),
+
+  suggest_file = g_strdup_printf ("%s.xmp", item_name);
+
+  if (! dlg)
+    {
+      dlg = gtk_file_chooser_dialog_new (_("Export XMP to File"),
+                                         GTK_WINDOW (parent),
+                                         GTK_FILE_CHOOSER_ACTION_SAVE,
+
+                                         GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+                                         GTK_STOCK_SAVE,   GTK_RESPONSE_OK,
+
+                                         NULL);
+
+      gtk_dialog_set_alternative_button_order (GTK_DIALOG (dlg),
+                                               GTK_RESPONSE_OK,
+                                               GTK_RESPONSE_CANCEL,
+                                               -1);
+      gtk_dialog_set_default_response (GTK_DIALOG (dlg), GTK_RESPONSE_OK);
+
+      gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dlg),
+                                                      TRUE);
+
+      gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dlg), suggest_file);
+
+      g_signal_connect (dlg, "destroy",
+                        G_CALLBACK (gtk_widget_destroyed),
+                        &dlg);
+      g_signal_connect (dlg, "response",
+                        G_CALLBACK (attributes_export_dialog_response),
+                        attributes);
+
+      g_free (suggest_file);
+    }
+  gtk_window_present (GTK_WINDOW (dlg));
+}
+
+/* call default browser for google maps */
+static void
+attributes_show_gps (GtkWidget      *parent,
+                     GimpAttributes *attributes)
+{
+  GError  *error = NULL;
+  gchar   *uri   = NULL;
+  gchar    lat_buf[G_ASCII_DTOSTR_BUF_SIZE];
+  gchar    lon_buf[G_ASCII_DTOSTR_BUF_SIZE];
+
+  if (!g_strcmp0 (gps_latitude_ref, "S"))
+    gps_latitude = gps_latitude * -1.0;
+  if (!g_strcmp0 (gps_longitude_ref, "W"))
+    gps_longitude = gps_longitude * -1.0;
+
+  g_ascii_formatd (lat_buf, G_ASCII_DTOSTR_BUF_SIZE, "%.6f",
+                   gps_latitude);
+  g_ascii_formatd (lon_buf, G_ASCII_DTOSTR_BUF_SIZE, "%.6f",
+                   gps_longitude);
+
+  uri = g_strdup_printf ("http://maps.google.com?q=%s,%s&z=15",
+                         lat_buf,
+                         lon_buf);
+
+  g_app_info_launch_default_for_uri (uri, NULL, &error);
+  if (error)
+    {
+      attributes_message_dialog (GTK_MESSAGE_ERROR, GTK_WINDOW (parent),
+                               _("GPS failure"),
+                               error->message);
+    }
+
+
+}
+
+/* save XMP metadata to a file (only XMP, nothing else) */
+static void
+attributes_export_dialog_response (GtkWidget *dlg,
+                                   gint       response_id,
+                                   gpointer   data)
+{
+  GimpAttributes *attributes = (GimpAttributes *) data;
+
+  g_return_if_fail (attributes != NULL);
+
+  if (response_id == GTK_RESPONSE_OK)
+    {
+      GString       *buffer;
+      const gchar   *xmp_data = NULL;
+      gchar         *filename = NULL;
+      int            fd;
+
+      xmp_data = gimp_attributes_to_xmp_packet (attributes, "file/xmp");
+
+      if (!xmp_data)
+        {
+          attributes_message_dialog (GTK_MESSAGE_ERROR, GTK_WINDOW (dlg),
+                                   _("XMP creation failed"),
+                                   _("Cannot create xmp packet"));
+          return;
+        }
+
+      buffer = g_string_new (xmp_data);
+
+      filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dlg));
+      fd = g_open (filename, O_CREAT | O_TRUNC | O_WRONLY | _O_BINARY, 0666);
+      if (fd < 0)
+        {
+          attributes_message_dialog (GTK_MESSAGE_ERROR, GTK_WINDOW (dlg),
+                                   _("Open failed"),
+                                   _("Cannot create file"));
+          g_string_free (buffer, TRUE);
+          g_free (filename);
+          return;
+        }
+
+      if (write (fd, buffer->str, buffer->len) < 0)
+        {
+          attributes_message_dialog (GTK_MESSAGE_ERROR, GTK_WINDOW (dlg),
+                                   _("Save failed"),
+                                   _("Some error occurred while saving"));
+          g_string_free (buffer, TRUE);
+          g_free (filename);
+          return;
+        }
+
+      if (close (fd) < 0)
+        {
+          attributes_message_dialog (GTK_MESSAGE_ERROR, GTK_WINDOW (dlg),
+                                   _("Save failed"),
+                                   _("Could not close the file"));
+          g_string_free (buffer, TRUE);
+          g_free (filename);
+          return;
+        }
+
+      g_string_free (buffer, TRUE);
+      g_free (filename);
+    }
+
+  gtk_widget_destroy (dlg); /* FIXME: destroy or unmap? */
+}
+
+/* show a transient message dialog */
+static void
+attributes_message_dialog (GtkMessageType  type,
+                           GtkWindow      *parent,
+                           const gchar    *title,
+                           const gchar    *message)
+{
+  GtkWidget *dlg;
+
+  dlg = gtk_message_dialog_new (parent, 0, type, GTK_BUTTONS_OK, "%s", message);
+
+  if (title)
+    gtk_window_set_title (GTK_WINDOW (dlg), title);
+
+  gtk_window_set_role (GTK_WINDOW (dlg), "metadata-message");
+  gtk_dialog_run (GTK_DIALOG (dlg));
+  gtk_widget_destroy (dlg);
+}
+

plug-ins/common/file-jp2-load.c

@@ -57,6 +57,7 @@ static void     run               (const gchar      *name,
                                    gint             *nreturn_vals,
                                    GimpParam       **return_vals);
 static gint32   load_image        (const gchar      *filename,
+                                   gint32           *layer_ID,
                                    GError          **error);
 static gboolean load_icc_profile  (jas_image_t      *jas_image,
                                    gint              image_ID,
@@ -126,6 +127,7 @@ run (const gchar      *name,
   GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
   gint               image_ID;
   GError            *error = NULL;
+  gint32             layer_ID;
 
   run_mode = param[0].data.d_int32;
 
@@ -154,7 +156,7 @@ run (const gchar      *name,
           break;
         }
 
-      image_ID = load_image (param[1].data.d_string, &error);
+      image_ID = load_image (param[1].data.d_string, &layer_ID, &error);
 
       if (image_ID != -1)
         {
@@ -168,7 +170,7 @@ run (const gchar      *name,
             {
               GimpMetadataLoadFlags flags = GIMP_METADATA_LOAD_ALL;
 
-              gimp_image_metadata_load_finish (image_ID, "image/jp2",
+              gimp_image_metadata_load_finish (image_ID, layer_ID, "image/jp2",
                                                metadata, flags,
                                                interactive);
 
@@ -203,13 +205,13 @@ run (const gchar      *name,
 
 static gint32
 load_image (const gchar  *filename,
+            gint32       *layer_ID,
             GError      **error)
 {
   gint               fd;
   jas_stream_t      *stream;
   gint32             image_ID = -1;
   jas_image_t       *image;
-  gint32             layer_ID;
   GimpImageType      image_type;
   GimpImageBaseType  base_type;
   gint               width;

plug-ins/common/file-png.c

@@ -140,6 +140,7 @@ static void      run                       (const gchar      *name,
                                             GimpParam       **return_vals);
 
 static gint32    load_image                (const gchar      *filename,
+                                            gint32           *layer_ID,
                                             gboolean          interactive,
                                             gboolean         *resolution_loaded,
                                             GError          **error);
@@ -147,6 +148,7 @@ static gboolean  save_image                (const gchar      *filename,
                                             gint32            image_ID,
                                             gint32            drawable_ID,
                                             gint32            orig_image_ID,
+                                            gint             *bits_depth,
                                             GError          **error);
 
 static int       respin_cmap               (png_structp       pp,
@@ -416,6 +418,7 @@ run (const gchar      *name,
   GimpRunMode       run_mode;
   GimpPDBStatusType status = GIMP_PDB_SUCCESS;
   gint32            image_ID;
+  gint32            layer_ID;
   gint32            drawable_ID;
   GError           *error  = NULL;
 
@@ -448,6 +451,7 @@ run (const gchar      *name,
         }
 
       image_ID = load_image (param[1].data.d_string,
+                             &layer_ID,
                              interactive,
                              &resolution_loaded,
                              &error);
@@ -467,7 +471,7 @@ run (const gchar      *name,
               if (resolution_loaded)
                 flags &= ~GIMP_METADATA_LOAD_RESOLUTION;
 
-              gimp_image_metadata_load_finish (image_ID, "image/png",
+              gimp_image_metadata_load_finish (image_ID, layer_ID, "image/png",
                                                metadata, flags,
                                                interactive);
 
@@ -492,6 +496,7 @@ run (const gchar      *name,
       GimpMetadata          *metadata;
       GimpMetadataSaveFlags  metadata_flags;
       gint32                 orig_image_ID;
+      gint                   bits_depth;
       GimpExportReturn       export = GIMP_EXPORT_CANCEL;
       gboolean               alpha;
 
@@ -525,8 +530,8 @@ run (const gchar      *name,
         }
 
       metadata = gimp_image_metadata_save_prepare (orig_image_ID,
-                                                   "image/png",
-                                                   &metadata_flags);
+                                                     "image/png",
+                                                     &metadata_flags);
 
       pngvals.save_exif      = (metadata_flags & GIMP_METADATA_SAVE_EXIF) != 0;
       pngvals.save_xmp       = (metadata_flags & GIMP_METADATA_SAVE_XMP) != 0;
@@ -608,7 +613,7 @@ run (const gchar      *name,
       if (status == GIMP_PDB_SUCCESS)
         {
           if (save_image (param[3].data.d_string,
-                          image_ID, drawable_ID, orig_image_ID, &error))
+                          image_ID, drawable_ID, orig_image_ID, &bits_depth, &error))
             {
               if (metadata)
                 {
@@ -637,10 +642,12 @@ run (const gchar      *name,
                     metadata_flags &= ~GIMP_METADATA_SAVE_THUMBNAIL;
 
                   file = g_file_new_for_path (param[3].data.d_string);
+
                   gimp_image_metadata_save_finish (orig_image_ID,
                                                    "image/png",
                                                    metadata, metadata_flags,
                                                    file, NULL);
+                  g_object_unref (metadata);
                   g_object_unref (file);
                 }
 
@@ -655,8 +662,6 @@ run (const gchar      *name,
       if (export == GIMP_EXPORT_EXPORT)
         gimp_image_delete (image_ID);
 
-      if (metadata)
-        g_object_unref (metadata);
     }
   else if (strcmp (name, GET_DEFAULTS_PROC) == 0)
     {
@@ -817,6 +822,7 @@ load_color_profile (png_structp   pp,
  */
 static gint32
 load_image (const gchar  *filename,
+            gint32       *layer_ID,
             gboolean      interactive,
             gboolean     *resolution_loaded,
             GError      **error)
@@ -1427,6 +1433,7 @@ save_image (const gchar  *filename,
             gint32        image_ID,
             gint32        drawable_ID,
             gint32        orig_image_ID,
+            gint         *bits_depth,
             GError      **error)
 {
   gint              i, k;             /* Looping vars */
@@ -1500,6 +1507,8 @@ save_image (const gchar  *filename,
       break;
     }
 
+  *bits_depth = bit_depth;
+
   pp = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
   if (!pp)
     {

plug-ins/common/gimprc.common

@@ -1,6 +1,7 @@
 align_layers_RC = align-layers.rc.o
 animation_optimize_RC = animation-optimize.rc.o
 animation_play_RC = animation-play.rc.o
+attributes_RC = attributes.rc.o
 blinds_RC = blinds.rc.o
 blur_RC = blur.rc.o
 border_average_RC = border-average.rc.o
@@ -65,10 +66,10 @@ gradient_map_RC = gradient-map.rc.o
 grid_RC = grid.rc.o
 guillotine_RC = guillotine.rc.o
 hot_RC = hot.rc.o
+iptc_RC = iptc.rc.o
 jigsaw_RC = jigsaw.rc.o
 mail_RC = mail.rc.o
 max_rgb_RC = max-rgb.rc.o
-metadata_RC = metadata.rc.o
 newsprint_RC = newsprint.rc.o
 nl_filter_RC = nl-filter.rc.o
 oilify_RC = oilify.rc.o

plug-ins/common/iptc.c

@@ -0,0 +1,513 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * iptc.c
+ * Copyright (C) 2013 Hartmut Kuhse
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+#include <gexiv2/gexiv2.h>
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_IMAGE_PROC     "plug-in-image-iptc-editor"
+#define PLUG_IN_LAYER_PROC     "plug-in-layer-iptc-editor"
+#define PLUG_IN_CHANNEL_PROC   "plug-in-channel-iptc-editor"
+#define PLUG_IN_HELP           "plug-in-iptc-editor"
+#define PLUG_IN_BINARY         "iptc"
+
+#define THUMB_SIZE 48
+
+#define IPTC_PREFIX "Iptc."
+
+typedef struct
+{
+  gchar *tag;
+  gchar *mode;
+} iptc_tag;
+
+typedef enum
+{
+  ATT_IMAGE,
+  ATT_LAYER,
+  ATT_CHANNEL
+} AttributesSource;
+
+/*  local function prototypes  */
+
+static void              query                      (void);
+static void              run                        (const gchar           *name,
+                                                     gint                   nparams,
+                                                     const GimpParam       *param,
+                                                     gint                  *nreturn_vals,
+                                                     GimpParam            **return_vals);
+
+static gboolean        iptc_dialog                  (gint32                 image_id,
+                                                     GimpAttributes        *attributes,
+                                                     AttributesSource       source,
+                                                     GtkBuilder            *builder);
+
+static void            iptc_dialog_set_iptc         (GimpAttributes        *attributes,
+                                                     GtkBuilder            *builder);
+
+static void            iptc_change_iptc             (GimpAttributes        *attributes,
+                                                     GtkBuilder            *builder);
+
+
+/* local variables */
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+  NULL,  /* init_proc  */
+  NULL,  /* quit_proc  */
+  query, /* query_proc */
+  run,   /* run_proc   */
+};
+
+static const iptc_tag const iptc_tags[] =
+{
+  { "Iptc.Application2.Byline",                  "single" },
+  { "Iptc.Application2.BylineTitle",             "single" },
+  { "Iptc.Application2.Caption",                 "multi"  },
+  { "Iptc.Application2.Category",                "single" },
+  { "Iptc.Application2.City",                    "single" },
+  { "Iptc.Application2.Copyright",               "single" },
+  { "Iptc.Application2.CountryName",             "single" },
+  { "Iptc.Application2.Credit",                  "single" },
+  { "Iptc.Application2.Headline",                "multi"  },
+  { "Iptc.Application2.Keywords",                "multi"  },
+  { "Iptc.Application2.ObjectName",              "single" },
+  { "Iptc.Application2.ProvinceState",           "single" },
+  { "Iptc.Application2.Source",                  "single" },
+  { "Iptc.Application2.SpecialInstructions",     "multi"  },
+  { "Iptc.Application2.SubLocation",             "single" },
+  { "Iptc.Application2.SuppCategory",            "multi"  },
+  { "Iptc.Application2.TransmissionReference",   "single" },
+  { "Iptc.Application2.Urgency",                 "single" },
+  { "Iptc.Application2.Writer",                  "single" }
+};
+
+/*  functions  */
+
+MAIN ()
+
+static void
+query (void)
+{
+  static const GimpParamDef image_attribs_args[] =
+  {
+    { GIMP_PDB_INT32, "run-mode", "Run mode { RUN-INTERACTIVE (0) }" },
+    { GIMP_PDB_IMAGE, "image",    "Input image"                      }
+  };
+
+  static const GimpParamDef layer_attribs_args[] =
+  {
+    { GIMP_PDB_INT32, "run-mode", "Run mode { RUN-INTERACTIVE (0) }" },
+    { GIMP_PDB_IMAGE, "image",    "Input image"                      },
+    { GIMP_PDB_LAYER, "layer",    "Input layer"                      }
+  };
+
+  static const GimpParamDef channel_attribs_args[] =
+  {
+    { GIMP_PDB_INT32,   "run-mode",   "Run mode { RUN-INTERACTIVE (0) }" },
+    { GIMP_PDB_IMAGE,   "image",      "Input image"                      },
+    { GIMP_PDB_CHANNEL, "channel",    "Input channel"                    }
+  };
+
+  gimp_install_procedure (PLUG_IN_IMAGE_PROC,
+                          N_("View and edit IPTC data"),
+                          "View and edit IPTC information attached to the "
+                          "current image. This iptc will be saved in the "
+                          "file, depending on the output file format.",
+                          "Hartmut Kuhse",
+                          "Hartmut Kuhse",
+                          "2014",
+                          N_("Edit IPTC Metadata"),
+                          "*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (image_attribs_args), 0,
+                          image_attribs_args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_IMAGE_PROC, "<Image>/Image");
+
+  gimp_install_procedure (PLUG_IN_LAYER_PROC,
+                          N_("View and edit IPTC data"),
+                          "View and edit IPTC information attached to the "
+                          "current layer. This iptc will be saved in the "
+                          "xcf file.",
+                          "Hartmut Kuhse",
+                          "Hartmut Kuhse",
+                          "2014",
+                          N_("Edit layers IPTC Metadata"),
+                          "*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (layer_attribs_args), 0,
+                          layer_attribs_args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_LAYER_PROC, "<Layers>");
+
+  gimp_install_procedure (PLUG_IN_CHANNEL_PROC,
+                          N_("View and edit IPTC data"),
+                          "View and edit IPTC information attached to the "
+                          "current channel. This iptc will be saved in the "
+                          "xcf file.",
+                          "Hartmut Kuhse",
+                          "Hartmut Kuhse",
+                          "2014",
+                          N_("Edit channels IPTC Metadata"),
+                          "*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (channel_attribs_args), 0,
+                          channel_attribs_args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_CHANNEL_PROC, "<Channels>");
+
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  GimpAttributes    *attributes;
+  GtkBuilder        *builder;
+  AttributesSource   source;
+  gint32             item_ID;
+  static GimpParam   values[1];
+  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
+
+  INIT_I18N();
+  gimp_ui_init (PLUG_IN_BINARY, TRUE);
+
+  if (! strcmp (name, PLUG_IN_IMAGE_PROC))
+    {
+      item_ID = param[1].data.d_image;
+
+      attributes = gimp_image_get_attributes (item_ID);
+      source = ATT_IMAGE;
+
+      status = GIMP_PDB_SUCCESS;
+    }
+  else if (! strcmp (name, PLUG_IN_LAYER_PROC))
+    {
+      item_ID = param[2].data.d_layer;
+
+      attributes = gimp_item_get_attributes (item_ID);
+      source = ATT_LAYER;
+
+      status = GIMP_PDB_SUCCESS;
+    }
+  else if (! strcmp (name, PLUG_IN_CHANNEL_PROC))
+    {
+      item_ID = param[2].data.d_channel;
+
+      attributes = gimp_item_get_attributes (item_ID);
+      source = ATT_CHANNEL;
+
+      status = GIMP_PDB_SUCCESS;
+    }
+  else
+    {
+      status = GIMP_PDB_CALLING_ERROR;
+    }
+
+  if (! attributes)
+    {
+      attributes = gimp_attributes_new();
+    }
+
+  builder = gtk_builder_new ();
+
+  if (status == GIMP_PDB_SUCCESS && iptc_dialog (item_ID, attributes, source, builder))
+    {
+
+      iptc_change_iptc (attributes, builder);
+
+      if (! strcmp (name, PLUG_IN_IMAGE_PROC))
+        {
+          gimp_image_set_attributes (item_ID, attributes);
+        }
+      else if (! strcmp (name, PLUG_IN_LAYER_PROC))
+        {
+          gimp_item_set_attributes (item_ID, attributes);
+        }
+      else if (! strcmp (name, PLUG_IN_CHANNEL_PROC))
+        {
+          gimp_item_set_attributes (item_ID, attributes);
+        }
+      status = GIMP_PDB_SUCCESS;
+    }
+  else
+    {
+      status = GIMP_PDB_CALLING_ERROR;
+    }
+
+  g_object_unref (attributes);
+
+  values[0].data.d_status = status;
+}
+
+static gboolean
+iptc_dialog (gint32            item_id,
+             GimpAttributes   *attributes,
+             AttributesSource  source,
+             GtkBuilder       *builder)
+{
+  GtkWidget  *dialog;
+  GtkWidget  *iptc_vbox;
+  GtkWidget  *content_area;
+  GdkPixbuf  *pixbuf;
+  GtkWidget  *label_header;
+  GtkWidget  *label_info;
+  GtkWidget  *thumb_box;
+  gchar      *ui_file;
+  gchar      *title;
+  gchar      *fname;
+  gchar      *header;
+  gchar      *role;
+  GError     *error = NULL;
+  gboolean    run;
+
+
+  switch (source)
+  {
+    case ATT_IMAGE:
+      fname = g_filename_display_basename (gimp_image_get_uri (item_id));
+      header  = g_strdup_printf ("Image");
+      title = g_strdup_printf ("Image: %s", fname);
+      role  = g_strdup_printf ("gimp-image-iptc-dialog");
+      pixbuf = gimp_image_get_thumbnail (item_id, THUMB_SIZE, THUMB_SIZE,
+                                         GIMP_PIXBUF_SMALL_CHECKS);
+
+      break;
+    case ATT_LAYER:
+      fname = gimp_item_get_name (item_id);
+      header  = g_strdup_printf ("Layer");
+      title = g_strdup_printf ("Layer: %s", fname);
+      role  = g_strdup_printf ("gimp-layer-iptc-dialog");
+      pixbuf = gimp_drawable_get_thumbnail (item_id, THUMB_SIZE, THUMB_SIZE,
+                                            GIMP_PIXBUF_SMALL_CHECKS);
+      break;
+    case ATT_CHANNEL:
+      fname = gimp_item_get_name (item_id);
+      header  = g_strdup_printf ("Channel");
+      title = g_strdup_printf ("Channel: %s", fname);
+      role  = g_strdup_printf ("gimp-channel-iptc-dialog");
+      pixbuf = gimp_drawable_get_thumbnail (item_id, THUMB_SIZE, THUMB_SIZE,
+                                            GIMP_PIXBUF_SMALL_CHECKS);
+      break;
+    default:
+      fname = g_strdup_printf ("unknown");
+      header  = g_strdup_printf ("Unknown");
+      title = g_strdup_printf ("Attributes: %s", fname);
+      role  = g_strdup_printf ("gimp-iptc-dialog");
+      pixbuf = NULL;
+      break;
+  }
+
+  ui_file = g_build_filename (gimp_data_directory (),
+                              "ui", "plug-ins", "plug-in-iptc.ui", NULL);
+
+  if (! gtk_builder_add_from_file (builder, ui_file, &error))
+    {
+      g_printerr ("Error occured while loading UI file!\n");
+      g_printerr ("Message: %s\n", error->message);
+      g_clear_error (&error);
+      g_free (ui_file);
+      g_object_unref (builder);
+      return FALSE;
+    }
+
+  g_free (ui_file);
+
+  dialog = gimp_dialog_new (title,
+                            role,
+                            NULL, 0,
+                            gimp_standard_help_func, PLUG_IN_HELP,
+                            
+                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
+                            GTK_STOCK_OK,    GTK_RESPONSE_OK,
+
+                            NULL);
+
+  g_free (title);
+  g_free (role);
+
+  gtk_window_set_default_size (GTK_WINDOW (dialog),
+                               600,
+                               -1);
+
+  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+                                           GTK_RESPONSE_OK,
+                                           GTK_RESPONSE_CLOSE,
+                                           -1);
+
+  content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
+
+  iptc_vbox = GTK_WIDGET (gtk_builder_get_object (builder,
+                                                  "iptc-vbox"));
+  gtk_container_set_border_width (GTK_CONTAINER (iptc_vbox), 2);
+  gtk_box_pack_start (GTK_BOX (content_area), iptc_vbox, TRUE, TRUE, 0);
+
+  label_header = GTK_WIDGET (gtk_builder_get_object (builder, "label-header"));
+  gimp_label_set_attributes (GTK_LABEL (label_header),
+                             PANGO_ATTR_SCALE,  PANGO_SCALE_LARGE,
+                             PANGO_ATTR_WEIGHT, PANGO_WEIGHT_BOLD,
+                             -1);
+  gtk_label_set_text (GTK_LABEL (label_header), header);
+
+  label_info = GTK_WIDGET (gtk_builder_get_object (builder, "label-info"));
+  gimp_label_set_attributes (GTK_LABEL (label_info),
+                             PANGO_ATTR_SCALE,  PANGO_SCALE_SMALL,
+                             -1);
+  gtk_label_set_text (GTK_LABEL (label_info), fname);
+
+  g_free (header);
+  g_free (fname);
+
+  if (pixbuf)
+    {
+      GtkWidget *image;
+
+      thumb_box = GTK_WIDGET (gtk_builder_get_object (builder, "thumb-box"));
+
+      if (thumb_box)
+        {
+          image = gtk_image_new_from_pixbuf (pixbuf);
+          gtk_box_pack_end (GTK_BOX (thumb_box), image, FALSE, FALSE, 0);
+          gtk_widget_show (image);
+        }
+    }
+
+  iptc_dialog_set_iptc (attributes, builder);
+
+  run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+  return run;
+}
+
+
+/*  private functions  */
+
+static void
+iptc_dialog_set_iptc (GimpAttributes *attributes,
+                      GtkBuilder     *builder)
+{
+  gchar         *value;
+  gint           i;
+
+  for (i = 0; i < G_N_ELEMENTS (iptc_tags); i++)
+    {
+      GimpAttribute *attribute = NULL;
+      GtkWidget     *widget    = NULL;
+
+      attribute = gimp_attributes_get_attribute (attributes, iptc_tags[i].tag);
+      widget = GTK_WIDGET (gtk_builder_get_object (builder, iptc_tags[i].tag));
+
+      if (attribute && widget)
+        {
+          value = gimp_attribute_get_string (attribute);
+
+          if (GTK_IS_ENTRY (widget))
+            {
+              GtkEntry *entry_widget = GTK_ENTRY (widget);
+
+              gtk_entry_set_text (entry_widget, value);
+            }
+          else if (GTK_IS_TEXT_VIEW (widget))
+            {
+              GtkTextView   *text_view = GTK_TEXT_VIEW (widget);
+              GtkTextBuffer *buffer;
+
+              buffer = gtk_text_view_get_buffer (text_view);
+              gtk_text_buffer_set_text (buffer, value, -1);
+            }
+          g_free (value);
+        }
+    }
+}
+
+static void
+iptc_change_iptc (GimpAttributes *attributes,
+                  GtkBuilder     *builder)
+{
+  gint            i;
+
+  for (i = 0; i < G_N_ELEMENTS (iptc_tags); i++)
+    {
+      GimpAttribute *attribute;
+
+      GObject *object = gtk_builder_get_object (builder,
+                                                iptc_tags[i].tag);
+
+      if (! strcmp ("single", iptc_tags[i].mode))
+        {
+          GtkEntry     *entry = GTK_ENTRY (object);
+          const gchar  *text  = gtk_entry_get_text (entry);
+
+          if (strcmp ("", text))
+            {
+              attribute = gimp_attribute_new_string (iptc_tags[i].tag, (gchar *) text, TYPE_UNICODE);
+              gimp_attributes_add_attribute (attributes, attribute);
+            }
+          else
+            {
+              gimp_attributes_remove_attribute (attributes, iptc_tags[i].tag);
+            }
+        }
+      else  if (!strcmp ("multi", iptc_tags[i].mode))
+        {
+          GtkTextView   *text_view = GTK_TEXT_VIEW (object);
+          GtkTextBuffer *buffer;
+          GtkTextIter    start;
+          GtkTextIter    end;
+          gchar         *text;
+
+          buffer = gtk_text_view_get_buffer (text_view);
+          gtk_text_buffer_get_start_iter (buffer, &start);
+          gtk_text_buffer_get_end_iter (buffer, &end);
+
+          text = gtk_text_buffer_get_text (buffer, &start, &end, TRUE);
+          
+          if (strcmp ("", text))
+            {
+              attribute = gimp_attribute_new_string (iptc_tags[i].tag, (gchar *) text, TYPE_MULTIPLE);
+              gimp_attributes_add_attribute (attributes, attribute);
+            }
+          else
+            {
+              gimp_attributes_remove_attribute (attributes, iptc_tags[i].tag);
+            }
+
+          g_free (text);
+        }
+    }
+}

plug-ins/common/metadata.c

@@ -1,383 +0,0 @@
-/* GIMP - The GNU Image Manipulation Program
- * Copyright (C) 1995 Spencer Kimball and Peter Mattis
- *
- * metadata.c
- * Copyright (C) 2013 Hartmut Kuhse
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "config.h"
-
-#include <gegl.h>
-#include <gtk/gtk.h>
-#include <gexiv2/gexiv2.h>
-
-#include <libgimp/gimp.h>
-#include <libgimp/gimpui.h>
-
-#include "libgimp/stdplugins-intl.h"
-
-
-#define PLUG_IN_PROC   "plug-in-metadata-editor"
-#define PLUG_IN_BINARY "metadata"
-#define PLUG_IN_ROLE   "gimp-metadata"
-
-#define EXIF_PREFIX "Exif."
-#define IPTC_PREFIX "Iptc."
-#define XMP_PREFIX  "Xmp."
-
-enum
-{
-  C_XMP_TAG = 0,
-  C_XMP_VALUE,
-  NUM_XMP_COLS
-};
-
-enum
-{
-  C_EXIF_TAG = 0,
-  C_EXIF_VALUE,
-  NUM_EXIF_COLS
-};
-
-
-typedef struct
-{
-  gchar *tag;
-  gchar *mode;
-} iptc_tag;
-
-
-/*  local function prototypes  */
-
-static void       query                         (void);
-static void       run                           (const gchar      *name,
-                                                 gint              nparams,
-                                                 const GimpParam  *param,
-                                                 gint             *nreturn_vals,
-                                                 GimpParam       **return_vals);
-
-static gboolean   metadata_dialog               (gint32          image_id,
-                                                 GExiv2Metadata *metadata);
-
-static void       metadata_dialog_set_metadata  (GExiv2Metadata *metadata,
-                                                 GtkBuilder     *builder);
-
-static void       metadata_dialog_iptc_callback (GtkWidget      *dialog,
-                                                 GtkBuilder     *builder);
-
-
-/* local variables */
-
-const GimpPlugInInfo PLUG_IN_INFO =
-{
-  NULL,  /* init_proc  */
-  NULL,  /* quit_proc  */
-  query, /* query_proc */
-  run,   /* run_proc   */
-};
-
-static const iptc_tag const iptc_tags[] =
-{
-  { "Iptc.Application2.Byline",                  "single" },
-  { "Iptc.Application2.BylineTitle",             "single" },
-  { "Iptc.Application2.Caption",                 "multi"  },
-  { "Iptc.Application2.Category",                "single" },
-  { "Iptc.Application2.City",                    "single" },
-  { "Iptc.Application2.Copyright",               "single" },
-  { "Iptc.Application2.CountryName",             "single" },
-  { "Iptc.Application2.Credit",                  "single" },
-  { "Iptc.Application2.Headline",                "multi"  },
-  { "Iptc.Application2.Keywords",                "multi"  },
-  { "Iptc.Application2.ObjectName",              "single" },
-  { "Iptc.Application2.ProvinceState",           "single" },
-  { "Iptc.Application2.Source",                  "single" },
-  { "Iptc.Application2.SpecialInstructions",     "multi"  },
-  { "Iptc.Application2.SubLocation",             "single" },
-  { "Iptc.Application2.SuppCategory",            "multi"  },
-  { "Iptc.Application2.TransmissionReference",   "single" },
-  { "Iptc.Application2.Urgency",                 "single" },
-  { "Iptc.Application2.Writer",                  "single" }
-};
-
-
-/*  functions  */
-
-MAIN ()
-
-static void
-query (void)
-{
-  static const GimpParamDef metadata_args[] =
-  {
-    { GIMP_PDB_INT32, "run-mode", "Run mode { RUN-INTERACTIVE (0) }" },
-    { GIMP_PDB_IMAGE, "image",    "Input image"                      }
-  };
-
-  gimp_install_procedure (PLUG_IN_PROC,
-                          N_("View and edit metadata (Exif, IPTC, XMP)"),
-                          "View and edit metadata information attached to the "
-                          "current image.  This can include Exif, IPTC and/or "
-                          "XMP information.  Some or all of this metadata "
-                          "will be saved in the file, depending on the output "
-                          "file format.",
-                          "Hartmut Kuhse, Michael Natterer",
-                          "Hartmut Kuhse, Michael Natterer",
-                          "2013",
-                          N_("Image Metadata"),
-                          "*",
-                          GIMP_PLUGIN,
-                          G_N_ELEMENTS (metadata_args), 0,
-                          metadata_args, NULL);
-
-  gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Image");
-}
-
-static void
-run (const gchar      *name,
-     gint              nparams,
-     const GimpParam  *param,
-     gint             *nreturn_vals,
-     GimpParam       **return_vals)
-{
-  static GimpParam   values[1];
-  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
-
-  *nreturn_vals = 1;
-  *return_vals  = values;
-
-  values[0].type          = GIMP_PDB_STATUS;
-  values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR;
-
-  INIT_I18N();
-  gimp_ui_init (PLUG_IN_BINARY, TRUE);
-
-  if (! strcmp (name, PLUG_IN_PROC))
-    {
-      GimpMetadata *metadata;
-      gint32        image_ID = param[1].data.d_image;
-
-      metadata = gimp_image_get_metadata (image_ID);
-
-      if (metadata)
-        {
-          metadata_dialog (image_ID, metadata);
-        }
-      else
-        {
-          g_message (_("This image has no metadata attached to it."));
-        }
-
-      status = GIMP_PDB_SUCCESS;
-    }
-  else
-    {
-      status = GIMP_PDB_CALLING_ERROR;
-    }
-
-  values[0].data.d_status = status;
-}
-
-static gboolean
-metadata_dialog (gint32          image_id,
-                 GExiv2Metadata *metadata)
-{
-  GtkBuilder *builder;
-  GtkWidget  *dialog;
-  GtkWidget  *metadata_vbox;
-  GtkWidget  *content_area;
-  GObject    *write_button;
-  gchar      *ui_file;
-  gchar      *title;
-  gchar      *name;
-  GError     *error = NULL;
-
-  builder = gtk_builder_new ();
-
-  ui_file = g_build_filename (gimp_data_directory (),
-                              "ui", "plug-ins", "plug-in-metadata.ui", NULL);
-
-  if (! gtk_builder_add_from_file (builder, ui_file, &error))
-    {
-      g_printerr ("Error occured while loading UI file!\n");
-      g_printerr ("Message: %s\n", error->message);
-      g_clear_error (&error);
-      g_free (ui_file);
-      g_object_unref (builder);
-      return FALSE;
-    }
-
-  g_free (ui_file);
-
-  name = gimp_image_get_name (image_id);
-  title = g_strdup_printf ("Metadata: %s", name);
-  g_free (name);
-
-  dialog = gimp_dialog_new (title,
-                            "gimp-metadata-dialog",
-                            NULL, 0,
-                            gimp_standard_help_func, PLUG_IN_PROC,
-
-                            GTK_STOCK_CLOSE, GTK_RESPONSE_CLOSE,
-
-                            NULL);
-
-  g_free (title);
-
-  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
-                                           GTK_RESPONSE_CLOSE,
-                                           -1);
-
-  content_area = gtk_dialog_get_content_area (GTK_DIALOG (dialog));
-
-  metadata_vbox = GTK_WIDGET (gtk_builder_get_object (builder,
-                                                      "metadata-vbox"));
-  gtk_container_set_border_width (GTK_CONTAINER (metadata_vbox), 12);
-  gtk_box_pack_start (GTK_BOX (content_area), metadata_vbox, TRUE, TRUE, 0);
-
-  write_button = gtk_builder_get_object (builder, "iptc-write-button");
-
-  g_signal_connect (write_button, "clicked",
-                    G_CALLBACK (metadata_dialog_iptc_callback),
-                    builder);
-
-  metadata_dialog_set_metadata (metadata, builder);
-
-  gtk_dialog_run (GTK_DIALOG (dialog));
-
-  return TRUE;
-}
-
-
-/*  private functions  */
-
-static void
-metadata_dialog_set_metadata (GExiv2Metadata *metadata,
-                              GtkBuilder     *builder)
-{
-  GtkListStore  *exif_store;
-  GtkListStore  *xmp_store;
-  gchar        **exif_data;
-  gchar        **iptc_data;
-  gchar        **xmp_data;
-  gchar         *value;
-  gchar         *value_utf;
-  GtkTreeIter    iter;
-  gint           i;
-
-  exif_store = GTK_LIST_STORE (gtk_builder_get_object (builder,
-                                                       "exif-liststore"));
-  xmp_store  = GTK_LIST_STORE (gtk_builder_get_object (builder,
-                                                       "xmp-liststore"));
-
-  exif_data = gexiv2_metadata_get_exif_tags (metadata);
-
-  for (i = 0; exif_data[i] != NULL; i++)
-    {
-      gtk_list_store_append (exif_store, &iter);
-      value = gexiv2_metadata_get_tag_interpreted_string (metadata,
-                                                          exif_data[i]);
-      value_utf = g_locale_to_utf8 (value, -1, NULL, NULL, NULL);
-
-      gtk_list_store_set (exif_store, &iter,
-                          C_EXIF_TAG,   exif_data[i],
-                          C_EXIF_VALUE, value_utf,
-                          -1);
-    }
-
-  xmp_data = gexiv2_metadata_get_xmp_tags (metadata);
-
-  for (i = 0; xmp_data[i] != NULL; i++)
-    {
-      gtk_list_store_append (xmp_store, &iter);
-      value = gexiv2_metadata_get_tag_interpreted_string (metadata,
-                                                          xmp_data[i]);
-      value_utf = g_locale_to_utf8 (value, -1, NULL, NULL, NULL);
-
-      gtk_list_store_set (xmp_store, &iter,
-                          C_XMP_TAG,   xmp_data[i],
-                          C_XMP_VALUE, value_utf,
-                          -1);
-    }
-
-  iptc_data = gexiv2_metadata_get_iptc_tags (metadata);
-
-  for (i = 0; iptc_data[i] != NULL; i++)
-    {
-      GtkWidget *widget;
-
-      widget = GTK_WIDGET (gtk_builder_get_object (builder, iptc_data[i]));
-      value = gexiv2_metadata_get_tag_interpreted_string (metadata,
-                                                          iptc_data[i]);
-      value_utf = g_locale_to_utf8 (value, -1, NULL, NULL, NULL);
-
-      if (GTK_IS_ENTRY (widget))
-        {
-          GtkEntry *entry_widget = GTK_ENTRY (widget);
-
-          gtk_entry_set_text (entry_widget, value_utf);
-        }
-      else if (GTK_IS_TEXT_VIEW (widget))
-        {
-          GtkTextView   *text_view = GTK_TEXT_VIEW (widget);
-          GtkTextBuffer *buffer;
-
-          buffer = gtk_text_view_get_buffer (text_view);
-          gtk_text_buffer_set_text (buffer, value_utf, -1);
-        }
-    }
-}
-
-static void
-metadata_dialog_iptc_callback (GtkWidget  *dialog,
-                               GtkBuilder *builder)
-{
-#if 0
-  GExiv2Metadata *metadata;
-  gint            i;
-
-  metadata = gimp_image_get_metadata (handler->image);
-
-  for (i = 0; i < G_N_ELEMENTS (iptc_tags); i++)
-    {
-      GObject *object = gtk_builder_get_object (handler->builder,
-                                                iptc_tags[i].tag);
-
-      if (! strcmp ("single", iptc_tags[i].mode))
-        {
-          GtkEntry *entry = GTK_ENTRY (object);
-
-          gexiv2_metadata_set_tag_string (metadata, iptc_tags[i].tag,
-                                          gtk_entry_get_text (entry));
-        }
-      else  if (!strcmp ("multi", iptc_tags[i].mode))
-        {
-          GtkTextView   *text_view = GTK_TEXT_VIEW (object);
-          GtkTextBuffer *buffer;
-          GtkTextIter    start;
-          GtkTextIter    end;
-          gchar         *text;
-
-          buffer = gtk_text_view_get_buffer (text_view);
-          gtk_text_buffer_get_start_iter (buffer, &start);
-          gtk_text_buffer_get_end_iter (buffer, &end);
-
-          text = gtk_text_buffer_get_text (buffer, &start, &end, TRUE);
-          gexiv2_metadata_set_tag_string (metadata, iptc_tags[i].tag, text);
-          g_free (text);
-        }
-    }
-#endif
-}

plug-ins/common/plugin-defs.pl

@@ -2,6 +2,7 @@
     'align-layers' => { ui => 1 },
     'animation-optimize' => {},
     'animation-play' => { ui => 1, gegl => 1 },
+    'attributes' => { ui => 1, gegl => 1 },
     'blinds' => { ui => 1 },
     'blur' => {},
     'border-average' => { ui => 1, gegl => 1 },
@@ -66,10 +67,10 @@
     'grid' => { ui => 1 },
     'guillotine' => {},
     'hot' => { ui => 1 },
+    'iptc' => { ui => 1, libs => 'GEXIV2_LIBS', cflags => 'GEXIV2_CFLAGS' },
     'jigsaw' => { ui => 1 },
     'mail' => { ui => 1, optional => 1 },
     'max-rgb' => { ui => 1 },
-    'metadata' => { ui => 1, libs => 'GEXIV2_LIBS', cflags => 'GEXIV2_CFLAGS' },
     'newsprint' => { ui => 1 },
     'nl-filter' => { ui => 1 },
     'oilify' => { ui => 1 },

plug-ins/file-exr/file-exr.c

@@ -167,14 +167,14 @@ load_image (const gchar  *filename,
   GimpImageType     layer_type;
   gint32            layer;
   const Babl       *format;
-  GeglBuffer       *buffer = NULL;
+  GeglBuffer       *buffer        = NULL;
   gint              bpp;
   gint              tile_height;
-  gchar            *pixels = NULL;
+  gchar            *pixels        = NULL;
   gint              begin;
-  gint32            success = FALSE;
+  gint32            success       = FALSE;
   gchar            *comment;
-  GimpMetadata     *metadata;
+  GimpMetadata     *metadata      = NULL;
   gboolean          have_metadata = FALSE;
   guchar           *exif_data;
   guint             exif_size;
@@ -367,7 +367,9 @@ load_image (const gchar  *filename,
     }
 
   if (have_metadata)
-    gimp_image_set_metadata (image, metadata);
+    {
+      gimp_image_set_metadata (image, metadata);
+    }
 
   g_object_unref (metadata);
 

plug-ins/file-jpeg/jpeg-load.c

@@ -58,12 +58,13 @@ gint32           preview_layer_ID;
 gint32
 load_image (const gchar  *filename,
             GimpRunMode   runmode,
+            gint32       *layer_ID,
             gboolean      preview,
             gboolean     *resolution_loaded,
             GError      **error)
 {
   gint32 volatile  image_ID;
-  gint32           layer_ID;
+  gint32           _layer_ID;
   struct jpeg_decompress_struct cinfo;
   struct my_error_mgr           jerr;
   jpeg_saved_marker_ptr         marker;
@@ -232,11 +233,11 @@ load_image (const gchar  *filename,
                                          cinfo.output_width,
                                          cinfo.output_height,
                                          layer_type, 100, GIMP_NORMAL_MODE);
-      layer_ID = preview_layer_ID;
+      _layer_ID = preview_layer_ID;
     }
   else
     {
-      layer_ID = gimp_layer_new (image_ID, _("Background"),
+      _layer_ID = gimp_layer_new (image_ID, _("Background"),
                                  cinfo.output_width,
                                  cinfo.output_height,
                                  layer_type, 100, GIMP_NORMAL_MODE);
@@ -343,7 +344,7 @@ load_image (const gchar  *filename,
    * loop counter, so that we don't have to keep track ourselves.
    */
 
-  buffer = gimp_drawable_get_buffer (layer_ID);
+  buffer = gimp_drawable_get_buffer (_layer_ID);
   format = babl_format (image_type == GIMP_RGB ? "R'G'B' u8" : "Y' u8");
 
   while (cinfo.output_scanline < cinfo.output_height)
@@ -412,7 +413,9 @@ load_image (const gchar  *filename,
       gimp_progress_update (1.0);
     }
 
-  gimp_image_insert_layer (image_ID, layer_ID, -1, 0);
+  gimp_image_insert_layer (image_ID, _layer_ID, -1, 0);
+
+  *layer_ID = _layer_ID;
 
   return image_ID;
 }

plug-ins/file-jpeg/jpeg-load.h

@@ -20,6 +20,7 @@
 
 gint32 load_image           (const gchar  *filename,
                              GimpRunMode   runmode,
+                             gint32       *layer_ID,
                              gboolean      preview,
                              gboolean     *resolution_loaded,
                              GError      **error);

plug-ins/file-jpeg/jpeg-save.c

@@ -188,6 +188,7 @@ background_jpeg_save (PreviewPersistent *pp)
           GFile     *file = g_file_new_for_path (pp->file_name);
           GFileInfo *info;
           gchar     *text;
+          gint32     layer_ID;
           GError    *error = NULL;
 
           info = g_file_query_info (file,
@@ -218,7 +219,7 @@ background_jpeg_save (PreviewPersistent *pp)
           g_object_unref (file);
 
           /* and load the preview */
-          load_image (pp->file_name, GIMP_RUN_NONINTERACTIVE, TRUE, NULL, NULL);
+          load_image (pp->file_name, GIMP_RUN_NONINTERACTIVE, &layer_ID, TRUE, NULL, NULL);
         }
 
       /* we cleanup here (load_image doesn't run in the background) */

plug-ins/file-jpeg/jpeg.c

@@ -173,6 +173,7 @@ run (const gchar      *name,
   GimpRunMode        run_mode;
   GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
   gint32             image_ID;
+  gint32             layer_ID;
   gint32             drawable_ID;
   GimpParasite      *parasite;
   GError            *error  = NULL;
@@ -210,7 +211,7 @@ run (const gchar      *name,
           break;
         }
 
-      image_ID = load_image (param[1].data.d_string, run_mode, FALSE,
+      image_ID = load_image (param[1].data.d_string, run_mode, &layer_ID, FALSE,
                              &resolution_loaded, &error);
 
       if (image_ID != -1)
@@ -223,12 +224,12 @@ run (const gchar      *name,
 
           if (metadata)
             {
-              GimpMetadataLoadFlags flags = GIMP_METADATA_LOAD_ALL;
+              GimpMetadataLoadFlags  flags = GIMP_METADATA_LOAD_ALL;
 
               if (resolution_loaded)
                 flags &= ~GIMP_METADATA_LOAD_RESOLUTION;
 
-              gimp_image_metadata_load_finish (image_ID, "image/jpeg",
+              gimp_image_metadata_load_finish (image_ID, layer_ID, "image/jpeg",
                                                metadata, flags,
                                                load_interactive);
 
@@ -574,7 +575,6 @@ run (const gchar      *name,
               g_object_unref (file);
             }
         }
-
       if (metadata)
         g_object_unref (metadata);
     }

plug-ins/file-psd/psd.c

@@ -211,7 +211,7 @@ run (const gchar      *name,
               if (resolution_loaded)
                 flags &= ~GIMP_METADATA_LOAD_RESOLUTION;
 
-              gimp_image_metadata_load_finish (image_ID, "image/x-psd",
+              gimp_image_metadata_load_finish (image_ID, -1, "image/x-psd",
                                                metadata, flags,
                                                interactive);
 
@@ -315,6 +315,8 @@ run (const gchar      *name,
                                                metadata, metadata_flags,
                                                file, NULL);
               g_object_unref (file);
+
+              g_object_unref (metadata);
             }
 
           values[0].data.d_status = GIMP_PDB_SUCCESS;
@@ -334,8 +336,6 @@ run (const gchar      *name,
       if (export == GIMP_EXPORT_EXPORT)
         gimp_image_delete (image_ID);
 
-      if (metadata)
-        g_object_unref (metadata);
     }
 
   /* Unknown procedure */

plug-ins/file-tiff/file-tiff-load.c

@@ -219,6 +219,7 @@ load_dialog (TIFF              *tif,
 
 gint32
 load_image (GFile              *file,
+            gint32             *layer_ID,
             TIFF               *tif,
             TiffSelectedPages  *pages,
             gboolean           *resolution_loaded,
@@ -929,6 +930,8 @@ load_image (GFile              *file,
           g_free (name);
         }
 
+      *layer_ID         = layer;
+
       if (! base_format && image_type == GIMP_INDEXED)
         {
           /* can't create the palette format here, need to get it from

plug-ins/file-tiff/file-tiff-load.h

@@ -37,6 +37,7 @@ gboolean   load_dialog (TIFF               *tif,
                         TiffSelectedPages  *pages);
 
 gint32     load_image  (GFile              *file,
+                        gint32             *layer_ID,
                         TIFF               *tif,
                         TiffSelectedPages  *pages,
                         gboolean           *resolution_loaded,

plug-ins/file-tiff/file-tiff.c

@@ -264,13 +264,14 @@ run (const gchar      *name,
 
               if (run_it)
                 {
-                  gint32    image;
-                  gboolean  resolution_loaded = FALSE;
+                  gint32   image;
+                  gint32   layer_ID;
+                  gboolean resolution_loaded = FALSE;
 
                   gimp_set_data (LOAD_PROC,
                                  &pages.target, sizeof (pages.target));
 
-                  image = load_image (file, tif, &pages,
+                  image = load_image (file, &layer_ID, tif, &pages,
                                       &resolution_loaded,
                                       &error);
 
@@ -291,7 +292,7 @@ run (const gchar      *name,
                           if (resolution_loaded)
                             flags &= ~GIMP_METADATA_LOAD_RESOLUTION;
 
-                          gimp_image_metadata_load_finish (image, "image/tiff",
+                          gimp_image_metadata_load_finish (image, layer_ID, "image/tiff",
                                                            metadata, flags,
                                                            run_mode == GIMP_RUN_INTERACTIVE);
 

plug-ins/metainfo/Makefile.am

@@ -0,0 +1,63 @@
+## Process this file with automake to produce Makefile.in
+
+libgimpui = $(top_builddir)/libgimp/libgimpui-$(GIMP_API_VERSION).la
+libgimpwidgets = $(top_builddir)/libgimpwidgets/libgimpwidgets-$(GIMP_API_VERSION).la
+libgimp = $(top_builddir)/libgimp/libgimp-$(GIMP_API_VERSION).la
+libgimpconfig = $(top_builddir)/libgimpconfig/libgimpconfig-$(GIMP_API_VERSION).la
+libgimpcolor = $(top_builddir)/libgimpcolor/libgimpcolor-$(GIMP_API_VERSION).la
+libgimpbase = $(top_builddir)/libgimpbase/libgimpbase-$(GIMP_API_VERSION).la
+libgimpmath = $(top_builddir)/libgimpmath/libgimpmath-$(GIMP_API_VERSION).la
+
+if OS_WIN32
+mwindows = -mwindows
+endif
+
+if HAVE_WINDRES
+include $(top_srcdir)/build/windows/gimprc-plug-ins.rule
+metainfo_RC = metainfo.rc.o
+endif
+
+AM_LDFLAGS = $(mwindows)
+
+libexecdir = $(gimpplugindir)/plug-ins
+
+libexec_PROGRAMS = metainfo
+
+metainfo_SOURCES = \
+	metainfo.c		\
+	metainfo.h		\
+	interface.h		\
+	interface.c		\
+	metainfo-helper.c		\
+	metainfo-helper.h		\
+	datapage.c		\
+	datapage.h		\
+	page-description.c		\
+	page-description.h	\
+	page-artwork.c		\
+	page-artwork.h		\
+	page-administration.c		\
+	page-administration.h		\
+	page-rights.c		\
+	page-rights.h
+
+AM_CPPFLAGS = \
+	-I$(top_srcdir)	\
+	$(GTK_CFLAGS)	\
+	$(GEGL_CFLAGS) \
+	$(GEXIV2_CFLAGS)	\
+	-I$(includedir)
+
+LDADD = \
+	$(libgimpui)		\
+	$(libgimpwidgets)	\
+	$(libgimp)		\
+	$(libgimpmath)		\
+	$(libgimpconfig)	\
+	$(libgimpcolor)		\
+	$(libgimpbase)		\
+	$(GEXIV2_LIBS)		\
+	$(GTK_LIBS)		\
+	$(RT_LIBS)		\
+	$(INTLLIBS)		\
+	$(metainfo_RC)

plug-ins/metainfo/datapage.h

@@ -0,0 +1,128 @@
+/* page.h
+ *
+ * Copyright (C) 2014, Hartmut Kuhse <hatti@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+
+// int (*arr)[8];
+
+#ifndef __PAGE_H__
+#define __PAGE_H__
+
+#include <glib.h>
+
+G_BEGIN_DECLS
+
+#define TYPE_DATAPAGE (datapage_get_type ())
+#define DATAPAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), TYPE_DATAPAGE, datapage))
+#define DATAPAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), TYPE_DATAPAGE, datapageClass))
+#define IS_DATAPAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), TYPE_DATAPAGE))
+#define IS_DATAPAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), TYPE_DATAPAGE))
+#define DATAPAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), TYPE_DATAPAGE, datapageClass))
+
+typedef enum
+{
+  WIDGET_TYPE_ENTRY,
+  WIDGET_TYPE_COMBOBOX
+} WidgetType;
+
+typedef enum
+{
+  LIST_TYPE_NONE,
+  LIST_TYPE_SEQ,
+  LIST_TYPE_BAG,
+  LIST_TYPE_LANGALT
+} ListType;
+
+typedef struct _ComboBoxData      ComboBoxData;
+
+struct _ComboBoxData
+{
+  const gchar  *val_in_combo;                          /* translateable - value shown in the combobox */
+  const gchar  *val_in_tag;                            /* value saved as tag value */
+};
+
+
+typedef struct _MetadataEntry     MetadataEntry;
+
+struct _MetadataEntry
+{
+        gchar      *label;                             /* label of the widget */
+  const gchar      *ui_label;                          /* name of the label widget in GtkBuilder ui file */
+  const gchar      *ui_entry;                          /* name of the entry widget in GtkBuilder ui file */
+  const gchar      *xmp_tag;                           /* xmp tag, saved in GimpAttribute.name */
+  WidgetType        widget_type;                       /* type of entry widget in GtkBuilder ui : GtkEntry or GtkComboBox */
+        gint        number_of_comboarray;              /*number of entry in ComboBoxData - array. Only valid for combobox entries */
+};
+
+typedef struct _StructureElement StructureElement;
+
+struct _StructureElement
+{
+  gint                        number_of_element;       /* simply the number, corresponding to STRUCTURES_ON_PAGE */
+  const gchar                *identifier;              /* translateable - identifier for combobox entries */
+  const gchar                *struct_tag;              /* structure tag without array number */
+  GimpAttributeStructureType  struct_type;             /* type of structure, gexiv2 cannot get the right list type from tag*/
+  const gchar                *expand_label_widget;     /* name of the expander label widget */
+  const gchar                *struct_combo_widget;     /* name of the combobox widget for this structure */
+  const gchar                *struct_liststore_widget; /* name of the liststore of the combobox for this structure */
+  const gchar                *add_widget;              /* name of the add structure button for this structure */
+  const gchar                *remove_widget;           /* name of the remove structure button for this structure */
+};
+
+typedef struct _Datapage Datapage;
+typedef struct _DatapageClass DatapageClass;
+
+struct _Datapage {
+  GObject parent_instance;
+  StructureElement *struct_element;
+  gint              structure_element_count;
+  MetadataEntry    *metadata_entry;
+  gint              metadata_entry_count;
+  ComboBoxData     *combobox_data;
+  gint              combobox_data_count;
+  gint              max_combobox_entries;
+  GtkBuilder       *builder;
+//  GimpAttributes   *attributes;
+};
+
+struct _DatapageClass {
+  GObjectClass parent_class;
+};
+
+GType datapage_get_type (void) G_GNUC_CONST;
+
+
+Datapage*                    datapage_new                       (GtkBuilder        *builder);
+void                         datapage_set_structure_element     (Datapage          *datapage,
+                                                                 StructureElement *struct_elem,
+                                                                 gint              structure_element_count);
+void                         datapage_set_combobox_data         (Datapage         *datapage,
+                                                                 ComboBoxData     *combobox_data,
+                                                                 gint              combobox_data_count,
+                                                                 gint              max_combobox_entries);
+void                         datapage_set_metadata_entry        (Datapage         *datapage,
+                                                                 MetadataEntry    *metadata_entry,
+                                                                 gint              metadata_entry_count);
+
+void                         datapage_read_from_attributes      (Datapage         *datapage,
+                                                                 GimpAttributes  **attributes);
+void                         datapage_save_to_attributes        (Datapage         *datapage,
+                                                                 GimpAttributes  **attributes);
+
+G_END_DECLS
+
+#endif