/* PIKA - Photo and Image Kooker Application * a rebranding of The GNU Image Manipulation Program (created with heckimp) * A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio * * Original copyright, applying to most contents (license remains unchanged): * Copyright (C) 1995 Spencer Kimball and Peter Mattis * * pikacanvasproxygroup.c * Copyright (C) 2010 Michael Natterer * * 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 . */ #include "config.h" #include #include #include "libpikabase/pikabase.h" #include "libpikamath/pikamath.h" #include "display-types.h" #include "pikacanvas.h" #include "pikacanvasproxygroup.h" #include "pikadisplayshell.h" enum { PROP_0 }; typedef struct _PikaCanvasProxyGroupPrivate PikaCanvasProxyGroupPrivate; struct _PikaCanvasProxyGroupPrivate { GHashTable *proxy_hash; }; #define GET_PRIVATE(proxy_group) \ ((PikaCanvasProxyGroupPrivate *) pika_canvas_proxy_group_get_instance_private ((PikaCanvasProxyGroup *) (proxy_group))) /* local function prototypes */ static void pika_canvas_proxy_group_finalize (GObject *object); static void pika_canvas_proxy_group_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec); static void pika_canvas_proxy_group_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec); G_DEFINE_TYPE_WITH_PRIVATE (PikaCanvasProxyGroup, pika_canvas_proxy_group, PIKA_TYPE_CANVAS_GROUP) #define parent_class pika_canvas_proxy_group_parent_class static void pika_canvas_proxy_group_class_init (PikaCanvasProxyGroupClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); object_class->finalize = pika_canvas_proxy_group_finalize; object_class->set_property = pika_canvas_proxy_group_set_property; object_class->get_property = pika_canvas_proxy_group_get_property; } static void pika_canvas_proxy_group_init (PikaCanvasProxyGroup *proxy_group) { PikaCanvasProxyGroupPrivate *private = GET_PRIVATE (proxy_group); private->proxy_hash = g_hash_table_new (g_direct_hash, g_direct_equal); } static void pika_canvas_proxy_group_finalize (GObject *object) { PikaCanvasProxyGroupPrivate *private = GET_PRIVATE (object); g_clear_pointer (&private->proxy_hash, g_hash_table_unref); G_OBJECT_CLASS (parent_class)->finalize (object); } static void pika_canvas_proxy_group_set_property (GObject *object, guint property_id, const GValue *value, GParamSpec *pspec) { /* PikaCanvasProxyGroupPrivate *private = GET_PRIVATE (object); */ switch (property_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } static void pika_canvas_proxy_group_get_property (GObject *object, guint property_id, GValue *value, GParamSpec *pspec) { /* PikaCanvasProxyGroupPrivate *private = GET_PRIVATE (object); */ switch (property_id) { default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); break; } } PikaCanvasItem * pika_canvas_proxy_group_new (PikaDisplayShell *shell) { g_return_val_if_fail (PIKA_IS_DISPLAY_SHELL (shell), NULL); return g_object_new (PIKA_TYPE_CANVAS_PROXY_GROUP, "shell", shell, NULL); } void pika_canvas_proxy_group_add_item (PikaCanvasProxyGroup *group, gpointer object, PikaCanvasItem *proxy_item) { PikaCanvasProxyGroupPrivate *private; g_return_if_fail (PIKA_IS_CANVAS_GROUP (group)); g_return_if_fail (object != NULL); g_return_if_fail (PIKA_IS_CANVAS_ITEM (proxy_item)); g_return_if_fail (PIKA_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); pika_canvas_group_add_item (PIKA_CANVAS_GROUP (group), proxy_item); } void pika_canvas_proxy_group_remove_item (PikaCanvasProxyGroup *group, gpointer object) { PikaCanvasProxyGroupPrivate *private; PikaCanvasItem *proxy_item; g_return_if_fail (PIKA_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); pika_canvas_group_remove_item (PIKA_CANVAS_GROUP (group), proxy_item); } PikaCanvasItem * pika_canvas_proxy_group_get_item (PikaCanvasProxyGroup *group, gpointer object) { PikaCanvasProxyGroupPrivate *private; g_return_val_if_fail (PIKA_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); }