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-rw-r--r--app/core/gimpdrawablemodundo.c216
1 files changed, 216 insertions, 0 deletions
diff --git a/app/core/gimpdrawablemodundo.c b/app/core/gimpdrawablemodundo.c
new file mode 100644
index 0000000..5c3e897
--- /dev/null
+++ b/app/core/gimpdrawablemodundo.c
@@ -0,0 +1,216 @@
+/* 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-utils.h"
+
+#include "gimp-memsize.h"
+#include "gimpimage.h"
+#include "gimpdrawable.h"
+#include "gimpdrawablemodundo.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_COPY_BUFFER
+};
+
+
+static void gimp_drawable_mod_undo_constructed (GObject *object);
+static void gimp_drawable_mod_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gimp_drawable_mod_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static gint64 gimp_drawable_mod_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size);
+
+static void gimp_drawable_mod_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum);
+static void gimp_drawable_mod_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode);
+
+
+G_DEFINE_TYPE (GimpDrawableModUndo, gimp_drawable_mod_undo, GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_drawable_mod_undo_parent_class
+
+
+static void
+gimp_drawable_mod_undo_class_init (GimpDrawableModUndoClass *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_drawable_mod_undo_constructed;
+ object_class->set_property = gimp_drawable_mod_undo_set_property;
+ object_class->get_property = gimp_drawable_mod_undo_get_property;
+
+ gimp_object_class->get_memsize = gimp_drawable_mod_undo_get_memsize;
+
+ undo_class->pop = gimp_drawable_mod_undo_pop;
+ undo_class->free = gimp_drawable_mod_undo_free;
+
+ g_object_class_install_property (object_class, PROP_COPY_BUFFER,
+ g_param_spec_boolean ("copy-buffer",
+ NULL, NULL,
+ FALSE,
+ GIMP_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gimp_drawable_mod_undo_init (GimpDrawableModUndo *undo)
+{
+}
+
+static void
+gimp_drawable_mod_undo_constructed (GObject *object)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (object);
+ GimpItem *item;
+ GimpDrawable *drawable;
+
+ G_OBJECT_CLASS (parent_class)->constructed (object);
+
+ gimp_assert (GIMP_IS_DRAWABLE (GIMP_ITEM_UNDO (object)->item));
+
+ item = GIMP_ITEM_UNDO (object)->item;
+ drawable = GIMP_DRAWABLE (item);
+
+ if (drawable_mod_undo->copy_buffer)
+ {
+ drawable_mod_undo->buffer =
+ gimp_gegl_buffer_dup (gimp_drawable_get_buffer (drawable));
+ }
+ else
+ {
+ drawable_mod_undo->buffer =
+ g_object_ref (gimp_drawable_get_buffer (drawable));
+ }
+
+ gimp_item_get_offset (item,
+ &drawable_mod_undo->offset_x,
+ &drawable_mod_undo->offset_y);
+}
+
+static void
+gimp_drawable_mod_undo_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_COPY_BUFFER:
+ drawable_mod_undo->copy_buffer = g_value_get_boolean (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gimp_drawable_mod_undo_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (object);
+
+ switch (property_id)
+ {
+ case PROP_COPY_BUFFER:
+ g_value_set_boolean (value, drawable_mod_undo->copy_buffer);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gint64
+gimp_drawable_mod_undo_get_memsize (GimpObject *object,
+ gint64 *gui_size)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (object);
+ gint64 memsize = 0;
+
+ memsize += gimp_gegl_buffer_get_memsize (drawable_mod_undo->buffer);
+
+ return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+ gui_size);
+}
+
+static void
+gimp_drawable_mod_undo_pop (GimpUndo *undo,
+ GimpUndoMode undo_mode,
+ GimpUndoAccumulator *accum)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (undo);
+ GimpDrawable *drawable = GIMP_DRAWABLE (GIMP_ITEM_UNDO (undo)->item);
+ GeglBuffer *buffer;
+ gint offset_x;
+ gint offset_y;
+
+ GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+ buffer = drawable_mod_undo->buffer;
+ offset_x = drawable_mod_undo->offset_x;
+ offset_y = drawable_mod_undo->offset_y;
+
+ drawable_mod_undo->buffer = g_object_ref (gimp_drawable_get_buffer (drawable));
+
+ gimp_item_get_offset (GIMP_ITEM (drawable),
+ &drawable_mod_undo->offset_x,
+ &drawable_mod_undo->offset_y);
+
+ gimp_drawable_set_buffer_full (drawable, FALSE, NULL,
+ buffer,
+ GEGL_RECTANGLE (offset_x, offset_y, 0, 0),
+ TRUE);
+ g_object_unref (buffer);
+}
+
+static void
+gimp_drawable_mod_undo_free (GimpUndo *undo,
+ GimpUndoMode undo_mode)
+{
+ GimpDrawableModUndo *drawable_mod_undo = GIMP_DRAWABLE_MOD_UNDO (undo);
+
+ g_clear_object (&drawable_mod_undo->buffer);
+
+ GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}