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-rw-r--r--app/core/gimpmaskundo.c292
1 files changed, 292 insertions, 0 deletions
diff --git a/app/core/gimpmaskundo.c b/app/core/gimpmaskundo.c
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--- /dev/null
+++ b/app/core/gimpmaskundo.c
@@ -0,0 +1,292 @@
+/* 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 "gegl/gimp-gegl-loops.h"
+
+#include "gimp-memsize.h"
+#include "gimpchannel.h"
+#include "gimpmaskundo.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_CONVERT_FORMAT
+};
+
+
+static void gimp_mask_undo_constructed (GObject *object);
+static void gimp_mask_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_mask_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static gint64 gimp_mask_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size);
+
+static void gimp_mask_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum);
+static void gimp_mask_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode);
+
+
+G_DEFINE_TYPE (GimpMaskUndo, gimp_mask_undo, GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_mask_undo_parent_class
+
+
+static void
+gimp_mask_undo_class_init (GimpMaskUndoClass *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_mask_undo_constructed;
+ object_class->set_property = gimp_mask_undo_set_property;
+ object_class->get_property = gimp_mask_undo_get_property;
+
+ gimp_object_class->get_memsize = gimp_mask_undo_get_memsize;
+
+ undo_class->pop = gimp_mask_undo_pop;
+ undo_class->free = gimp_mask_undo_free;
+
+ g_object_class_install_property (object_class, PROP_CONVERT_FORMAT,
+ g_param_spec_boolean ("convert-format",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gimp_mask_undo_init (GimpMaskUndo *undo)
+{
+}
+
+static void
+gimp_mask_undo_constructed (GObject *object)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (object);
+ GimpItem *item;
+ GimpDrawable *drawable;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (GIMP_IS_CHANNEL (GIMP_ITEM_UNDO (object)->item));
+
+ item = GIMP_ITEM_UNDO (object)->item;
+ drawable = GIMP_DRAWABLE (item);
+
+ mask_undo->format = gimp_drawable_get_format (drawable);
+
+ if (gimp_item_bounds (item,
+ &mask_undo->bounds.x,
+ &mask_undo->bounds.y,
+ &mask_undo->bounds.width,
+ &mask_undo->bounds.height))
+ {
+ GeglBuffer *buffer = gimp_drawable_get_buffer (drawable);
+ GeglRectangle rect;
+
+ gegl_rectangle_align_to_buffer (&rect, &mask_undo->bounds, buffer,
+ GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
+
+ mask_undo->buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
+ rect.width,
+ rect.height),
+ mask_undo->format);
+
+ gimp_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
+ mask_undo->buffer, GEGL_RECTANGLE (0, 0, 0, 0));
+
+ mask_undo->x = rect.x;
+ mask_undo->y = rect.y;
+ }
+}
+
+static void
+gimp_mask_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_CONVERT_FORMAT:
+ mask_undo->convert_format = g_value_get_boolean (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_mask_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_CONVERT_FORMAT:
+ g_value_set_boolean (value, mask_undo->convert_format);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gint64
+gimp_mask_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (object);
+ gint64 memsize = 0;
+
+ memsize += gimp_gegl_buffer_get_memsize (mask_undo->buffer);
+
+ return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+ gui_size);
+}
+
+static void
+gimp_mask_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (undo);
+ GimpItem *item = GIMP_ITEM_UNDO (undo)->item;
+ GimpDrawable *drawable = GIMP_DRAWABLE (item);
+ GimpChannel *channel = GIMP_CHANNEL (item);
+ GeglBuffer *new_buffer = NULL;
+ GeglRectangle bounds = {};
+ GeglRectangle rect = {};
+ const Babl *format;
+
+ GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+ format = gimp_drawable_get_format (drawable);
+
+ if (gimp_item_bounds (item,
+ &bounds.x,
+ &bounds.y,
+ &bounds.width,
+ &bounds.height))
+ {
+ GeglBuffer *buffer = gimp_drawable_get_buffer (drawable);
+
+ gegl_rectangle_align_to_buffer (&rect, &bounds, buffer,
+ GEGL_RECTANGLE_ALIGNMENT_SUPERSET);
+
+ new_buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
+ rect.width, rect.height),
+ format);
+
+ gimp_gegl_buffer_copy (buffer, &rect, GEGL_ABYSS_NONE,
+ new_buffer, GEGL_RECTANGLE (0, 0, 0, 0));
+
+ gegl_buffer_clear (buffer, &rect);
+ }
+
+ if (mask_undo->convert_format)
+ {
+ GeglBuffer *buffer;
+ gint width = gimp_item_get_width (item);
+ gint height = gimp_item_get_height (item);
+
+ buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0, width, height),
+ mask_undo->format);
+
+ gimp_drawable_set_buffer (drawable, FALSE, NULL, buffer);
+ g_object_unref (buffer);
+ }
+
+ if (mask_undo->buffer)
+ {
+ gimp_gegl_buffer_copy (mask_undo->buffer,
+ NULL,
+ GEGL_ABYSS_NONE,
+ gimp_drawable_get_buffer (drawable),
+ GEGL_RECTANGLE (mask_undo->x, mask_undo->y, 0, 0));
+
+ g_object_unref (mask_undo->buffer);
+ }
+
+ /* invalidate the current bounds and boundary of the mask */
+ gimp_drawable_invalidate_boundary (drawable);
+
+ if (mask_undo->buffer)
+ {
+ channel->empty = FALSE;
+ channel->x1 = mask_undo->bounds.x;
+ channel->y1 = mask_undo->bounds.y;
+ channel->x2 = mask_undo->bounds.x + mask_undo->bounds.width;
+ channel->y2 = mask_undo->bounds.y + mask_undo->bounds.height;
+ }
+ else
+ {
+ channel->empty = TRUE;
+ channel->x1 = 0;
+ channel->y1 = 0;
+ channel->x2 = gimp_item_get_width (item);
+ channel->y2 = gimp_item_get_height (item);
+ }
+
+ /* we know the bounds */
+ channel->bounds_known = TRUE;
+
+ /* set the new mask undo parameters */
+ mask_undo->format = format;
+ mask_undo->buffer = new_buffer;
+ mask_undo->bounds = bounds;
+ mask_undo->x = rect.x;
+ mask_undo->y = rect.y;
+
+ gimp_drawable_update (drawable, 0, 0, -1, -1);
+}
+
+static void
+gimp_mask_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode)
+{
+ GimpMaskUndo *mask_undo = GIMP_MASK_UNDO (undo);
+
+ g_clear_object (&mask_undo->buffer);
+
+ GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}
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