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Diffstat (limited to 'app/display/gimpcanvasproxygroup.c')
| -rw-r--r-- | app/display/gimpcanvasproxygroup.c | 197 |
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); +} |