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-rw-r--r--app/core/gimpgrouplayerundo.c253
1 files changed, 253 insertions, 0 deletions
diff --git a/app/core/gimpgrouplayerundo.c b/app/core/gimpgrouplayerundo.c
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+++ b/app/core/gimpgrouplayerundo.c
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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 <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "core-types.h"
+
+#include "gimp-memsize.h"
+#include "gimpimage.h"
+#include "gimpgrouplayer.h"
+#include "gimpgrouplayerundo.h"
+
+
+static void gimp_group_layer_undo_constructed (GObject *object);
+
+static gint64 gimp_group_layer_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size);
+
+static void gimp_group_layer_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum);
+static void gimp_group_layer_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode);
+
+
+G_DEFINE_TYPE (GimpGroupLayerUndo, gimp_group_layer_undo, GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_group_layer_undo_parent_class
+
+
+static void
+gimp_group_layer_undo_class_init (GimpGroupLayerUndoClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
+ GimpUndoClass *undo_class = GIMP_UNDO_CLASS (klass);
+
+ object_class->constructed = gimp_group_layer_undo_constructed;
+
+ gimp_object_class->get_memsize = gimp_group_layer_undo_get_memsize;
+
+ undo_class->pop = gimp_group_layer_undo_pop;
+ undo_class->free = gimp_group_layer_undo_free;
+}
+
+static void
+gimp_group_layer_undo_init (GimpGroupLayerUndo *undo)
+{
+}
+
+static void
+gimp_group_layer_undo_constructed (GObject *object)
+{
+ GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (object);
+ GimpGroupLayer *group;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ g_return_if_fail (GIMP_IS_GROUP_LAYER (GIMP_ITEM_UNDO (object)->item));
+
+ group = GIMP_GROUP_LAYER (GIMP_ITEM_UNDO (object)->item);
+
+ switch (GIMP_UNDO (object)->undo_type)
+ {
+ case GIMP_UNDO_GROUP_LAYER_SUSPEND_RESIZE:
+ case GIMP_UNDO_GROUP_LAYER_RESUME_RESIZE:
+ case GIMP_UNDO_GROUP_LAYER_SUSPEND_MASK:
+ case GIMP_UNDO_GROUP_LAYER_START_TRANSFORM:
+ case GIMP_UNDO_GROUP_LAYER_END_TRANSFORM:
+ break;
+
+ case GIMP_UNDO_GROUP_LAYER_RESUME_MASK:
+ group_layer_undo->mask_buffer =
+ _gimp_group_layer_get_suspended_mask(group,
+ &group_layer_undo->mask_bounds);
+
+ if (group_layer_undo->mask_buffer)
+ g_object_ref (group_layer_undo->mask_buffer);
+ break;
+
+ case GIMP_UNDO_GROUP_LAYER_CONVERT:
+ group_layer_undo->prev_type = gimp_drawable_get_base_type (GIMP_DRAWABLE (group));
+ group_layer_undo->prev_precision = gimp_drawable_get_precision (GIMP_DRAWABLE (group));
+ group_layer_undo->prev_has_alpha = gimp_drawable_has_alpha (GIMP_DRAWABLE (group));
+ break;
+
+ default:
+ g_return_if_reached ();
+ }
+}
+
+static gint64
+gimp_group_layer_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size)
+{
+ GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (object);
+ gint64 memsize = 0;
+
+ memsize += gimp_gegl_buffer_get_memsize (group_layer_undo->mask_buffer);
+
+ return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+ gui_size);
+}
+
+static void
+gimp_group_layer_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum)
+{
+ GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (undo);
+ GimpGroupLayer *group;
+
+ group = GIMP_GROUP_LAYER (GIMP_ITEM_UNDO (undo)->item);
+
+ GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+ switch (undo->undo_type)
+ {
+ case GIMP_UNDO_GROUP_LAYER_SUSPEND_RESIZE:
+ case GIMP_UNDO_GROUP_LAYER_RESUME_RESIZE:
+ if ((undo_mode == GIMP_UNDO_MODE_UNDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_SUSPEND_RESIZE) ||
+ (undo_mode == GIMP_UNDO_MODE_REDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_RESUME_RESIZE))
+ {
+ /* resume group layer auto-resizing */
+
+ gimp_group_layer_resume_resize (group, FALSE);
+ }
+ else
+ {
+ /* suspend group layer auto-resizing */
+
+ gimp_group_layer_suspend_resize (group, FALSE);
+
+ if (undo->undo_type == GIMP_UNDO_GROUP_LAYER_RESUME_RESIZE &&
+ group_layer_undo->mask_buffer)
+ {
+ GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (group));
+
+ gimp_drawable_set_buffer_full (GIMP_DRAWABLE (mask),
+ FALSE, NULL,
+ group_layer_undo->mask_buffer,
+ &group_layer_undo->mask_bounds,
+ TRUE);
+ }
+ }
+ break;
+
+ case GIMP_UNDO_GROUP_LAYER_SUSPEND_MASK:
+ case GIMP_UNDO_GROUP_LAYER_RESUME_MASK:
+ if ((undo_mode == GIMP_UNDO_MODE_UNDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_SUSPEND_MASK) ||
+ (undo_mode == GIMP_UNDO_MODE_REDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_RESUME_MASK))
+ {
+ /* resume group layer mask auto-resizing */
+
+ gimp_group_layer_resume_mask (group, FALSE);
+ }
+ else
+ {
+ /* suspend group layer mask auto-resizing */
+
+ gimp_group_layer_suspend_mask (group, FALSE);
+
+ if (undo->undo_type == GIMP_UNDO_GROUP_LAYER_RESUME_MASK &&
+ group_layer_undo->mask_buffer)
+ {
+ _gimp_group_layer_set_suspended_mask (
+ group,
+ group_layer_undo->mask_buffer,
+ &group_layer_undo->mask_bounds);
+ }
+ }
+ break;
+
+ case GIMP_UNDO_GROUP_LAYER_START_TRANSFORM:
+ case GIMP_UNDO_GROUP_LAYER_END_TRANSFORM:
+ if ((undo_mode == GIMP_UNDO_MODE_UNDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_START_TRANSFORM) ||
+ (undo_mode == GIMP_UNDO_MODE_REDO &&
+ undo->undo_type == GIMP_UNDO_GROUP_LAYER_END_TRANSFORM))
+ {
+ /* end group layer transform operation */
+
+ _gimp_group_layer_end_transform (group, FALSE);
+ }
+ else
+ {
+ /* start group layer transform operation */
+
+ _gimp_group_layer_start_transform (group, FALSE);
+ }
+ break;
+
+ case GIMP_UNDO_GROUP_LAYER_CONVERT:
+ {
+ GimpImageBaseType type;
+ GimpPrecision precision;
+ gboolean has_alpha;
+
+ type = gimp_drawable_get_base_type (GIMP_DRAWABLE (group));
+ precision = gimp_drawable_get_precision (GIMP_DRAWABLE (group));
+ has_alpha = gimp_drawable_has_alpha (GIMP_DRAWABLE (group));
+
+ gimp_drawable_convert_type (GIMP_DRAWABLE (group),
+ gimp_item_get_image (GIMP_ITEM (group)),
+ group_layer_undo->prev_type,
+ group_layer_undo->prev_precision,
+ group_layer_undo->prev_has_alpha,
+ NULL,
+ 0, 0,
+ FALSE, NULL);
+
+ group_layer_undo->prev_type = type;
+ group_layer_undo->prev_precision = precision;
+ group_layer_undo->prev_has_alpha = has_alpha;
+ }
+ break;
+
+ default:
+ g_return_if_reached ();
+ }
+}
+
+static void
+gimp_group_layer_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode)
+{
+ GimpGroupLayerUndo *group_layer_undo = GIMP_GROUP_LAYER_UNDO (undo);
+
+ g_clear_object (&group_layer_undo->mask_buffer);
+
+ GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}