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/* 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "display-types.h"
#include "core/gimpimage.h"
#include "gimpdisplay.h"
#include "gimpdisplay-handlers.h"
/* local function prototypes */
static void gimp_display_update_handler (GimpProjection *projection,
gboolean now,
gint x,
gint y,
gint w,
gint h,
GimpDisplay *display);
static void gimp_display_bounds_changed_handler (GimpImage *image,
gint old_x,
gint old_y,
GimpDisplay *display);
static void gimp_display_flush_handler (GimpImage *image,
gboolean invalidate_preview,
GimpDisplay *display);
static gboolean
gimp_display_flush_handler_idle (gpointer user_data);
/* public functions */
void
gimp_display_connect (GimpDisplay *display)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_DISPLAY (display));
image = gimp_display_get_image (display);
g_return_if_fail (GIMP_IS_IMAGE (image));
g_signal_connect (gimp_image_get_projection (image), "update",
G_CALLBACK (gimp_display_update_handler),
display);
g_signal_connect (image, "bounds-changed",
G_CALLBACK (gimp_display_bounds_changed_handler),
display);
g_signal_connect_swapped (image, "flush",
G_CALLBACK (gimp_display_flush),
display);
g_signal_connect_swapped (image, "selected-layers-changed",
G_CALLBACK (gimp_display_flush),
display);
}
void
gimp_display_disconnect (GimpDisplay *display)
{
GimpImage *image;
g_return_if_fail (GIMP_IS_DISPLAY (display));
image = gimp_display_get_image (display);
g_return_if_fail (GIMP_IS_IMAGE (image));
g_signal_handlers_disconnect_by_func (image,
gimp_display_flush,
display);
g_signal_handlers_disconnect_by_func (image,
gimp_display_bounds_changed_handler,
display);
g_signal_handlers_disconnect_by_func (gimp_image_get_projection (image),
gimp_display_update_handler,
display);
}
/* private functions */
static void
gimp_display_update_handler (GimpProjection *projection,
gboolean now,
gint x,
gint y,
gint w,
gint h,
GimpDisplay *display)
{
gimp_display_update_area (display, now, x, y, w, h);
}
static void
gimp_display_bounds_changed_handler (GimpImage *image,
gint old_x,
gint old_y,
GimpDisplay *display)
{
gimp_display_update_bounding_box (display);
}
static void
gimp_display_flush_handler (GimpImage *image,
gboolean invalidate_preview,
GimpDisplay *display)
{
g_idle_add_full (G_PRIORITY_LOW,
(GSourceFunc) gimp_display_flush_handler_idle,
g_object_ref (display), g_object_unref);
}
static gboolean
gimp_display_flush_handler_idle (gpointer user_data)
{
GimpDisplay *display = user_data;
gimp_display_flush (display);
return G_SOURCE_REMOVE;
}
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