mirror of https://github.com/GNOME/gimp.git
117 lines
3.3 KiB
C
117 lines
3.3 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 <gdk-pixbuf/gdk-pixbuf.h>
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#include <gegl.h>
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#include "core-types.h"
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#include "gimpimage.h"
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#include "gimpimage-guides.h"
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#include "gimpguide.h"
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#include "gimpguideundo.h"
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static void gimp_guide_undo_constructed (GObject *object);
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static void gimp_guide_undo_pop (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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G_DEFINE_TYPE (GimpGuideUndo, gimp_guide_undo,
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GIMP_TYPE_AUX_ITEM_UNDO)
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#define parent_class gimp_guide_undo_parent_class
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static void
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gimp_guide_undo_class_init (GimpGuideUndoClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
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object_class->constructed = gimp_guide_undo_constructed;
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undo_class->pop = gimp_guide_undo_pop;
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}
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static void
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gimp_guide_undo_init (GimpGuideUndo *undo)
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{
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}
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static void
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gimp_guide_undo_constructed (GObject *object)
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{
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GimpGuideUndo *guide_undo = GIMP_GUIDE_UNDO (object);
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GimpGuide *guide;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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guide = GIMP_GUIDE (GIMP_AUX_ITEM_UNDO (object)->aux_item);
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gimp_assert (GIMP_IS_GUIDE (guide));
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guide_undo->orientation = gimp_guide_get_orientation (guide);
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guide_undo->position = gimp_guide_get_position (guide);
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}
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static void
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gimp_guide_undo_pop (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum)
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{
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GimpGuideUndo *guide_undo = GIMP_GUIDE_UNDO (undo);
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GimpGuide *guide;
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GimpOrientationType orientation;
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gint position;
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gboolean moved = FALSE;
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GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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guide = GIMP_GUIDE (GIMP_AUX_ITEM_UNDO (undo)->aux_item);
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orientation = gimp_guide_get_orientation (guide);
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position = gimp_guide_get_position (guide);
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if (position == GIMP_GUIDE_POSITION_UNDEFINED)
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{
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gimp_image_add_guide (undo->image, guide, guide_undo->position);
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}
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else if (guide_undo->position == GIMP_GUIDE_POSITION_UNDEFINED)
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{
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gimp_image_remove_guide (undo->image, guide, FALSE);
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}
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else
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{
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gimp_guide_set_position (guide, guide_undo->position);
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moved = TRUE;
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}
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gimp_guide_set_orientation (guide, guide_undo->orientation);
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if (moved || guide_undo->orientation != orientation)
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gimp_image_guide_moved (undo->image, guide);
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guide_undo->position = position;
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guide_undo->orientation = orientation;
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}
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