gimplayermaskpropundo.c 3.51 KB
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/* Gimp - The GNU Image Manipulation Program
 * Copyright (C) 1995 Spencer Kimball and Peter Mattis
 *
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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.
 *
 * 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
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 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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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 "gimplayer.h"
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#include "gimplayermaskpropundo.h"


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static void   gimp_layer_mask_prop_undo_constructed (GObject             *object);
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static void   gimp_layer_mask_prop_undo_pop         (GimpUndo            *undo,
                                                     GimpUndoMode         undo_mode,
                                                     GimpUndoAccumulator *accum);
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G_DEFINE_TYPE (GimpLayerMaskPropUndo, gimp_layer_mask_prop_undo,
               GIMP_TYPE_ITEM_UNDO)

#define parent_class gimp_layer_mask_prop_undo_parent_class


static void
gimp_layer_mask_prop_undo_class_init (GimpLayerMaskPropUndoClass *klass)
{
  GObjectClass  *object_class = G_OBJECT_CLASS (klass);
  GimpUndoClass *undo_class   = GIMP_UNDO_CLASS (klass);

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  object_class->constructed = gimp_layer_mask_prop_undo_constructed;
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  undo_class->pop           = gimp_layer_mask_prop_undo_pop;
}

static void
gimp_layer_mask_prop_undo_init (GimpLayerMaskPropUndo *undo)
{
}

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static void
gimp_layer_mask_prop_undo_constructed (GObject *object)
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{
  GimpLayerMaskPropUndo *layer_mask_prop_undo;
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  GimpLayer             *layer;
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  layer_mask_prop_undo = GIMP_LAYER_MASK_PROP_UNDO (object);

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  G_OBJECT_CLASS (parent_class)->constructed (object);
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  gimp_assert (GIMP_IS_LAYER (GIMP_ITEM_UNDO (object)->item));
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  layer = GIMP_LAYER (GIMP_ITEM_UNDO (object)->item);
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  switch (GIMP_UNDO (object)->undo_type)
    {
    case GIMP_UNDO_LAYER_MASK_APPLY:
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      layer_mask_prop_undo->apply = gimp_layer_get_apply_mask (layer);
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      break;

    case GIMP_UNDO_LAYER_MASK_SHOW:
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      layer_mask_prop_undo->show = gimp_layer_get_show_mask (layer);
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      break;

    default:
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      g_return_if_reached ();
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    }
}

static void
gimp_layer_mask_prop_undo_pop (GimpUndo            *undo,
                               GimpUndoMode         undo_mode,
                               GimpUndoAccumulator *accum)
{
  GimpLayerMaskPropUndo *layer_mask_prop_undo = GIMP_LAYER_MASK_PROP_UNDO (undo);
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  GimpLayer             *layer                = GIMP_LAYER (GIMP_ITEM_UNDO (undo)->item);
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  GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);

  switch (undo->undo_type)
    {
    case GIMP_UNDO_LAYER_MASK_APPLY:
      {
        gboolean apply;

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        apply = gimp_layer_get_apply_mask (layer);
        gimp_layer_set_apply_mask (layer, layer_mask_prop_undo->apply, FALSE);
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        layer_mask_prop_undo->apply = apply;
      }
      break;

    case GIMP_UNDO_LAYER_MASK_SHOW:
      {
        gboolean show;

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        show = gimp_layer_get_show_mask (layer);
        gimp_layer_set_show_mask (layer, layer_mask_prop_undo->show, FALSE);
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        layer_mask_prop_undo->show = show;
      }
      break;

    default:
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      g_return_if_reached ();
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    }
}