summaryrefslogtreecommitdiffstats
path: root/app/display/gimpcanvasproxygroup.c
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--app/display/gimpcanvasproxygroup.c197
1 files changed, 197 insertions, 0 deletions
diff --git a/app/display/gimpcanvasproxygroup.c b/app/display/gimpcanvasproxygroup.c
new file mode 100644
index 0000000..a979f24
--- /dev/null
+++ b/app/display/gimpcanvasproxygroup.c
@@ -0,0 +1,197 @@
+/* GIMP - The GNU Image Manipulation Program
+ * Copyright (C) 1995 Spencer Kimball and Peter Mattis
+ *
+ * gimpcanvasproxygroup.c
+ * Copyright (C) 2010 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpmath/gimpmath.h"
+
+#include "display-types.h"
+
+#include "gimpcanvas.h"
+#include "gimpcanvasproxygroup.h"
+#include "gimpdisplayshell.h"
+
+
+enum
+{
+ PROP_0
+};
+
+
+typedef struct _GimpCanvasProxyGroupPrivate GimpCanvasProxyGroupPrivate;
+
+struct _GimpCanvasProxyGroupPrivate
+{
+ GHashTable *proxy_hash;
+};
+
+#define GET_PRIVATE(proxy_group) \
+ ((GimpCanvasProxyGroupPrivate *) gimp_canvas_proxy_group_get_instance_private ((GimpCanvasProxyGroup *) (proxy_group)))
+
+
+/* local function prototypes */
+
+static void gimp_canvas_proxy_group_finalize (GObject *object);
+static void gimp_canvas_proxy_group_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_canvas_proxy_group_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+
+G_DEFINE_TYPE_WITH_PRIVATE (GimpCanvasProxyGroup, gimp_canvas_proxy_group,
+ GIMP_TYPE_CANVAS_GROUP)
+
+#define parent_class gimp_canvas_proxy_group_parent_class
+
+
+static void
+gimp_canvas_proxy_group_class_init (GimpCanvasProxyGroupClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gimp_canvas_proxy_group_finalize;
+ object_class->set_property = gimp_canvas_proxy_group_set_property;
+ object_class->get_property = gimp_canvas_proxy_group_get_property;
+}
+
+static void
+gimp_canvas_proxy_group_init (GimpCanvasProxyGroup *proxy_group)
+{
+ GimpCanvasProxyGroupPrivate *private = GET_PRIVATE (proxy_group);
+
+ private->proxy_hash = g_hash_table_new (g_direct_hash, g_direct_equal);
+}
+
+static void
+gimp_canvas_proxy_group_finalize (GObject *object)
+{
+ GimpCanvasProxyGroupPrivate *private = GET_PRIVATE (object);
+
+ g_clear_pointer (&private->proxy_hash, g_hash_table_unref);
+
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+gimp_canvas_proxy_group_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ /* GimpCanvasProxyGroupPrivate *private = GET_PRIVATE (object); */
+
+ switch (property_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_canvas_proxy_group_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ /* GimpCanvasProxyGroupPrivate *private = GET_PRIVATE (object); */
+
+ switch (property_id)
+ {
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+GimpCanvasItem *
+gimp_canvas_proxy_group_new (GimpDisplayShell *shell)
+{
+ g_return_val_if_fail (GIMP_IS_DISPLAY_SHELL (shell), NULL);
+
+ return g_object_new (GIMP_TYPE_CANVAS_PROXY_GROUP,
+ "shell", shell,
+ NULL);
+}
+
+void
+gimp_canvas_proxy_group_add_item (GimpCanvasProxyGroup *group,
+ gpointer object,
+ GimpCanvasItem *proxy_item)
+{
+ GimpCanvasProxyGroupPrivate *private;
+
+ g_return_if_fail (GIMP_IS_CANVAS_GROUP (group));
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (GIMP_IS_CANVAS_ITEM (proxy_item));
+ g_return_if_fail (GIMP_CANVAS_ITEM (group) != proxy_item);
+
+ private = GET_PRIVATE (group);
+
+ g_return_if_fail (g_hash_table_lookup (private->proxy_hash, object) ==
+ NULL);
+
+ g_hash_table_insert (private->proxy_hash, object, proxy_item);
+
+ gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (group), proxy_item);
+}
+
+void
+gimp_canvas_proxy_group_remove_item (GimpCanvasProxyGroup *group,
+ gpointer object)
+{
+ GimpCanvasProxyGroupPrivate *private;
+ GimpCanvasItem *proxy_item;
+
+ g_return_if_fail (GIMP_IS_CANVAS_GROUP (group));
+ g_return_if_fail (object != NULL);
+
+ private = GET_PRIVATE (group);
+
+ proxy_item = g_hash_table_lookup (private->proxy_hash, object);
+
+ g_return_if_fail (proxy_item != NULL);
+
+ g_hash_table_remove (private->proxy_hash, object);
+
+ gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (group), proxy_item);
+}
+
+GimpCanvasItem *
+gimp_canvas_proxy_group_get_item (GimpCanvasProxyGroup *group,
+ gpointer object)
+{
+ GimpCanvasProxyGroupPrivate *private;
+
+ g_return_val_if_fail (GIMP_IS_CANVAS_GROUP (group), NULL);
+ g_return_val_if_fail (object != NULL, NULL);
+
+ private = GET_PRIVATE (group);
+
+ return g_hash_table_lookup (private->proxy_hash, object);
+}