162665e42b
Add a "show all" mode to GimpDisplayShell, controlled through a corresponding "View -> Show All" menu item. When enabled, the entire image content is displayed, instead of cropping the image to the canvas size. More generally, the display behaves as if the canvas were infinite. The following commits improve the overall behavior in this mode. Add a prefernces option to control the default "show all" state.
129 lines
4.3 KiB
C
129 lines
4.3 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "display-types.h"
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#include "core/gimpimage.h"
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#include "gimpdisplay.h"
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#include "gimpdisplay-handlers.h"
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/* local function prototypes */
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static void gimp_display_update_handler (GimpProjection *projection,
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gboolean now,
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gint x,
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gint y,
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gint w,
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gint h,
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GimpDisplay *display);
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static void gimp_display_bounds_changed_handler (GimpImage *image,
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gint old_x,
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gint old_y,
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GimpDisplay *display);
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static void gimp_display_flush_handler (GimpImage *image,
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gboolean invalidate_preview,
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GimpDisplay *display);
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/* public functions */
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void
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gimp_display_connect (GimpDisplay *display)
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{
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GimpImage *image;
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g_return_if_fail (GIMP_IS_DISPLAY (display));
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image = gimp_display_get_image (display);
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_signal_connect (gimp_image_get_projection (image), "update",
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G_CALLBACK (gimp_display_update_handler),
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display);
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g_signal_connect (image, "bounds-changed",
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G_CALLBACK (gimp_display_bounds_changed_handler),
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display);
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g_signal_connect (image, "flush",
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G_CALLBACK (gimp_display_flush_handler),
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display);
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}
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void
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gimp_display_disconnect (GimpDisplay *display)
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{
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GimpImage *image;
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g_return_if_fail (GIMP_IS_DISPLAY (display));
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image = gimp_display_get_image (display);
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_signal_handlers_disconnect_by_func (image,
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gimp_display_flush_handler,
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display);
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g_signal_handlers_disconnect_by_func (image,
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gimp_display_bounds_changed_handler,
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display);
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g_signal_handlers_disconnect_by_func (gimp_image_get_projection (image),
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gimp_display_update_handler,
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display);
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}
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/* private functions */
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static void
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gimp_display_update_handler (GimpProjection *projection,
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gboolean now,
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gint x,
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gint y,
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gint w,
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gint h,
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GimpDisplay *display)
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{
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gimp_display_update_area (display, now, x, y, w, h);
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}
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static void
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gimp_display_bounds_changed_handler (GimpImage *image,
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gint old_x,
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gint old_y,
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GimpDisplay *display)
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{
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gimp_display_update_bounding_box (display);
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}
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static void
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gimp_display_flush_handler (GimpImage *image,
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gboolean invalidate_preview,
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GimpDisplay *display)
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{
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gimp_display_flush (display);
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}
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