158 lines
4.9 KiB
C
158 lines
4.9 KiB
C
/* Pika - Photo and Image Kooker Application
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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 "libpikabase/pikabase.h"
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#include "core-types.h"
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#include "pikaimage.h"
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#include "pikalayer.h"
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#include "pikalayerpropundo.h"
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static void pika_layer_prop_undo_constructed (GObject *object);
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static void pika_layer_prop_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum);
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G_DEFINE_TYPE (PikaLayerPropUndo, pika_layer_prop_undo, PIKA_TYPE_ITEM_UNDO)
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#define parent_class pika_layer_prop_undo_parent_class
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static void
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pika_layer_prop_undo_class_init (PikaLayerPropUndoClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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PikaUndoClass *undo_class = PIKA_UNDO_CLASS (klass);
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object_class->constructed = pika_layer_prop_undo_constructed;
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undo_class->pop = pika_layer_prop_undo_pop;
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}
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static void
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pika_layer_prop_undo_init (PikaLayerPropUndo *undo)
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{
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}
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static void
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pika_layer_prop_undo_constructed (GObject *object)
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{
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PikaLayerPropUndo *layer_prop_undo = PIKA_LAYER_PROP_UNDO (object);
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PikaLayer *layer;
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G_OBJECT_CLASS (parent_class)->constructed (object);
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pika_assert (PIKA_IS_LAYER (PIKA_ITEM_UNDO (object)->item));
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layer = PIKA_LAYER (PIKA_ITEM_UNDO (object)->item);
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switch (PIKA_UNDO (object)->undo_type)
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{
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case PIKA_UNDO_LAYER_MODE:
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layer_prop_undo->mode = pika_layer_get_mode (layer);
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layer_prop_undo->blend_space = pika_layer_get_blend_space (layer);
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layer_prop_undo->composite_space = pika_layer_get_composite_space (layer);
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layer_prop_undo->composite_mode = pika_layer_get_composite_mode (layer);
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break;
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case PIKA_UNDO_LAYER_OPACITY:
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layer_prop_undo->opacity = pika_layer_get_opacity (layer);
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break;
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case PIKA_UNDO_LAYER_LOCK_ALPHA:
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layer_prop_undo->lock_alpha = pika_layer_get_lock_alpha (layer);
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break;
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default:
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g_return_if_reached ();
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}
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}
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static void
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pika_layer_prop_undo_pop (PikaUndo *undo,
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PikaUndoMode undo_mode,
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PikaUndoAccumulator *accum)
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{
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PikaLayerPropUndo *layer_prop_undo = PIKA_LAYER_PROP_UNDO (undo);
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PikaLayer *layer = PIKA_LAYER (PIKA_ITEM_UNDO (undo)->item);
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PIKA_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
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switch (undo->undo_type)
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{
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case PIKA_UNDO_LAYER_MODE:
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{
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PikaLayerMode mode;
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PikaLayerColorSpace blend_space;
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PikaLayerColorSpace composite_space;
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PikaLayerCompositeMode composite_mode;
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mode = pika_layer_get_mode (layer);
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blend_space = pika_layer_get_blend_space (layer);
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composite_space = pika_layer_get_composite_space (layer);
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composite_mode = pika_layer_get_composite_mode (layer);
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pika_layer_set_mode (layer, layer_prop_undo->mode,
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FALSE);
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pika_layer_set_blend_space (layer, layer_prop_undo->blend_space,
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FALSE);
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pika_layer_set_composite_space (layer, layer_prop_undo->composite_space,
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FALSE);
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pika_layer_set_composite_mode (layer, layer_prop_undo->composite_mode,
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FALSE);
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layer_prop_undo->mode = mode;
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layer_prop_undo->blend_space = blend_space;
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layer_prop_undo->composite_space = composite_space;
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layer_prop_undo->composite_mode = composite_mode;
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}
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break;
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case PIKA_UNDO_LAYER_OPACITY:
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{
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gdouble opacity;
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opacity = pika_layer_get_opacity (layer);
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pika_layer_set_opacity (layer, layer_prop_undo->opacity, FALSE);
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layer_prop_undo->opacity = opacity;
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}
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break;
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case PIKA_UNDO_LAYER_LOCK_ALPHA:
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{
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gboolean lock_alpha;
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lock_alpha = pika_layer_get_lock_alpha (layer);
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pika_layer_set_lock_alpha (layer, layer_prop_undo->lock_alpha, FALSE);
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layer_prop_undo->lock_alpha = lock_alpha;
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}
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break;
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default:
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g_return_if_reached ();
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}
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}
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