WIP

app/core/gimplistmodel.c

@@ -0,0 +1,119 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimplist.c
+ * Copyright (C) 2001-2016 Michael Natterer <mitch@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 <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+
+#include <gio/gio.h>
+
+#include "libgimpbase/gimpbase.h"
+
+#include "core-types.h"
+
+#include "gimp-memsize.h"
+#include "gimplistmodel.h"
+
+/**
+ * GimpListModel:
+ *
+ * An object that represents a list of GimpObjects, and that is itself a
+ * GimpObject.
+ */
+
+
+struct _GimpListModel
+{
+  GimpObject parent_instance;
+};
+
+enum
+{
+  PROP_0,
+  N_PROPS
+};
+
+
+
+G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GimpListModel, gimp_list_model, GIMP_TYPE_OBJECT,
+                                  G_ADD_PRIVATE (GimpListModel)
+                                  G_IMPLEMENT_INTERFACE ())
+
+static void
+gimp_list_model_class_init (GimpListModelClass *klass)
+{
+  GObjectClass       *object_class      = G_OBJECT_CLASS (klass);
+  GimpObjectClass    *gimp_object_class = GIMP_OBJECT_CLASS (klass);
+
+  object_class->finalize              = gimp_list_finalize;
+  object_class->set_property          = gimp_list_set_property;
+  object_class->get_property          = gimp_list_get_property;
+
+  gimp_object_class->get_memsize      = gimp_list_get_memsize;
+
+}
+
+static void
+gimp_list_model_init (GimpListModel *self)
+{
+}
+
+static void
+gimp_list_model_get_property (GObject    *object,
+                              guint       property_id,
+                              GValue     *value,
+                              GParamSpec *pspec)
+{
+  GimpListModel *self = GIMP_LIST_MODEL (object);
+
+  switch (prop_id)
+    {
+    case PAGES_PROP_ITEM_TYPE:
+      g_value_set_gtype (value, g_list_model_get_item_type (G_LIST_MODEL (self)));
+      break;
+
+    case PAGES_PROP_N_ITEMS:
+      g_value_set_uint (value, g_list_model_get_n_items (G_LIST_MODEL (self)));
+      break;
+
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+    }
+}
+
+static gint64
+gimp_list_get_memsize (GimpObject *object,
+                       gint64     *gui_size)
+{
+  GListModel    *list    = G_LIST_MODEL (self);
+  gint64         memsize = 0;
+
+  for (guint i = 0; i < g_list_model_get_n_items (list); i++)
+    {
+      GimpObject *item;
+
+      item = g_list_model_get_item (list, i);
+      memsize += gimp_object_get_memsize (gui_size);
+    }
+
+  return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+                                                                  gui_size);
+}

app/core/gimplistmodel.h

@@ -0,0 +1,43 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
+ *
+ * gimplistmodel.h
+ * Copyright (C) 2022 Niels De Graef <nielsdegraef@gmail.com>
+ *
+ * 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 <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GIMP_LIST_H__
+#define __GIMP_LIST_H__
+
+
+#include "gimpobject.h"
+
+
+#define GIMP_TYPE_LIST_MODEL (gimp_list_get_type ())
+G_DECLARE_DERIVABLE_TYPE (GimpListModel, gimp_list_model, GIMP, LIST_MODEL, GimpObject)
+
+struct _GimpListClass
+{
+  GimpObjectClass parent_class;
+};
+
+GimpObject *   gimp_list_model_find             (GimpListModel *self,
+                                                 guint         *position);
+
+GimpObject *   gimp_list_model_find_by_name     (GimpListModel *self,
+                                                 const gchar *name,
+                                                 guint       *position);
+
+#endif  /* __GIMP_LIST_H__ */