mirror of https://github.com/GNOME/gimp.git
125 lines
3.7 KiB
C
125 lines
3.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimpdisplayshell-items.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 <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <gtk/gtk.h>
|
|
|
|
#include "display-types.h"
|
|
|
|
#include "gimpcanvascursor.h"
|
|
#include "gimpcanvasgrid.h"
|
|
#include "gimpcanvasproxygroup.h"
|
|
#include "gimpdisplayshell.h"
|
|
#include "gimpdisplayshell-expose.h"
|
|
#include "gimpdisplayshell-items.h"
|
|
|
|
|
|
/* local function prototypes */
|
|
|
|
static void gimp_display_shell_item_update (GimpCanvasItem *item,
|
|
GdkRegion *region,
|
|
GimpDisplayShell *shell);
|
|
|
|
|
|
/* public functions */
|
|
|
|
void
|
|
gimp_display_shell_items_init (GimpDisplayShell *shell)
|
|
{
|
|
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
|
|
|
|
shell->canvas_item = gimp_canvas_group_new (shell);
|
|
|
|
shell->grid = gimp_canvas_grid_new (shell, NULL);
|
|
g_object_set (shell->grid, "grid-style", TRUE, NULL);
|
|
gimp_display_shell_add_item (shell, shell->grid);
|
|
g_object_unref (shell->grid);
|
|
|
|
shell->guides = gimp_canvas_proxy_group_new (shell);
|
|
gimp_display_shell_add_item (shell, shell->guides);
|
|
g_object_unref (shell->guides);
|
|
|
|
shell->sample_points = gimp_canvas_proxy_group_new (shell);
|
|
gimp_display_shell_add_item (shell, shell->sample_points);
|
|
g_object_unref (shell->sample_points);
|
|
|
|
shell->cursor = gimp_canvas_cursor_new (shell);
|
|
gimp_canvas_item_set_visible (shell->cursor, FALSE);
|
|
gimp_display_shell_add_item (shell, shell->cursor);
|
|
g_object_unref (shell->cursor);
|
|
|
|
g_signal_connect (shell->canvas_item, "update",
|
|
G_CALLBACK (gimp_display_shell_item_update),
|
|
shell);
|
|
}
|
|
|
|
void
|
|
gimp_display_shell_items_free (GimpDisplayShell *shell)
|
|
{
|
|
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
|
|
|
|
if (shell->canvas_item)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (shell->canvas_item,
|
|
gimp_display_shell_item_update,
|
|
shell);
|
|
|
|
g_object_unref (shell->canvas_item);
|
|
shell->canvas_item = NULL;
|
|
|
|
shell->grid = NULL;
|
|
shell->guides = NULL;
|
|
shell->sample_points = NULL;
|
|
shell->cursor = NULL;
|
|
}
|
|
}
|
|
|
|
void
|
|
gimp_display_shell_add_item (GimpDisplayShell *shell,
|
|
GimpCanvasItem *item)
|
|
{
|
|
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
|
|
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
|
|
|
|
gimp_canvas_group_add_item (GIMP_CANVAS_GROUP (shell->canvas_item), item);
|
|
}
|
|
|
|
void
|
|
gimp_display_shell_remove_item (GimpDisplayShell *shell,
|
|
GimpCanvasItem *item)
|
|
{
|
|
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
|
|
g_return_if_fail (GIMP_IS_CANVAS_ITEM (item));
|
|
|
|
gimp_canvas_group_remove_item (GIMP_CANVAS_GROUP (shell->canvas_item), item);
|
|
}
|
|
|
|
|
|
/* private functions */
|
|
|
|
static void
|
|
gimp_display_shell_item_update (GimpCanvasItem *item,
|
|
GdkRegion *region,
|
|
GimpDisplayShell *shell)
|
|
{
|
|
gimp_display_shell_expose_region (shell, region);
|
|
}
|