gimp/app/display/gimpdisplayshell-expose.c

79 lines
2.2 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <gegl.h>
#include <gtk/gtk.h>
#include "display-types.h"
#include "gimpdisplayshell.h"
#include "gimpdisplayshell-expose.h"
void
gimp_display_shell_expose_area (GimpDisplayShell *shell,
gint x,
gint y,
gint w,
gint h)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gtk_widget_queue_draw_area (shell->canvas, x, y, w, h);
}
void
gimp_display_shell_expose_region (GimpDisplayShell *shell,
cairo_region_t *region)
{
GdkRegion *gdk_region;
gint n_rectangles;
gint i;
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
g_return_if_fail (region != NULL);
if (! gtk_widget_get_realized (shell->canvas))
return;
gdk_region = gdk_region_new ();
n_rectangles = cairo_region_num_rectangles (region);
for (i = 0; i < n_rectangles; i++)
{
cairo_rectangle_int_t rectangle;
cairo_region_get_rectangle (region, i, &rectangle);
gdk_region_union_with_rect (gdk_region, (GdkRectangle *) &rectangle);
}
gdk_window_invalidate_region (gtk_widget_get_window (shell->canvas),
gdk_region, TRUE);
gdk_region_destroy (gdk_region);
}
void
gimp_display_shell_expose_full (GimpDisplayShell *shell)
{
g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
gtk_widget_queue_draw (shell->canvas);
}