1 files changed, 141 insertions, 0 deletions
diff --git a/app/vectors/gimpvectorsmodundo.c b/app/vectors/gimpvectorsmodundo.c
new file mode 100644
index 0000000..b681ba9
--- /dev/null
+++ b/app/vectors/gimpvectorsmodundo.c
@@ -0,0 +1,141 @@
+/* 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 "vectors-types.h"
+
+#include "gimpvectors.h"
+#include "gimpvectorsmodundo.h"
+
+
+static void     gimp_vectors_mod_undo_constructed (GObject             *object);
+
+static gint64   gimp_vectors_mod_undo_get_memsize (GimpObject          *object,
+                                                   gint64              *gui_size);
+
+static void     gimp_vectors_mod_undo_pop         (GimpUndo            *undo,
+                                                   GimpUndoMode         undo_mode,
+                                                   GimpUndoAccumulator *accum);
+static void     gimp_vectors_mod_undo_free        (GimpUndo            *undo,
+                                                   GimpUndoMode         undo_mode);
+
+
+G_DEFINE_TYPE (GimpVectorsModUndo, gimp_vectors_mod_undo, GIMP_TYPE_ITEM_UNDO)
+
+#define parent_class gimp_vectors_mod_undo_parent_class
+
+
+static void
+gimp_vectors_mod_undo_class_init (GimpVectorsModUndoClass *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_vectors_mod_undo_constructed;
+
+  gimp_object_class->get_memsize = gimp_vectors_mod_undo_get_memsize;
+
+  undo_class->pop                = gimp_vectors_mod_undo_pop;
+  undo_class->free               = gimp_vectors_mod_undo_free;
+}
+
+static void
+gimp_vectors_mod_undo_init (GimpVectorsModUndo *undo)
+{
+}
+
+static void
+gimp_vectors_mod_undo_constructed (GObject *object)
+{
+  GimpVectorsModUndo *vectors_mod_undo = GIMP_VECTORS_MOD_UNDO (object);
+  GimpVectors        *vectors;
+
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+
+  gimp_assert (GIMP_IS_VECTORS (GIMP_ITEM_UNDO (object)->item));
+
+  vectors = GIMP_VECTORS (GIMP_ITEM_UNDO (object)->item);
+
+  vectors_mod_undo->vectors =
+    GIMP_VECTORS (gimp_item_duplicate (GIMP_ITEM (vectors),
+                                       G_TYPE_FROM_INSTANCE (vectors)));
+}
+
+static gint64
+gimp_vectors_mod_undo_get_memsize (GimpObject *object,
+                                   gint64     *gui_size)
+{
+  GimpVectorsModUndo *vectors_mod_undo = GIMP_VECTORS_MOD_UNDO (object);
+  gint64              memsize          = 0;
+
+  memsize += gimp_object_get_memsize (GIMP_OBJECT (vectors_mod_undo->vectors),
+                                      gui_size);
+
+  return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
+                                                                  gui_size);
+}
+
+static void
+gimp_vectors_mod_undo_pop (GimpUndo            *undo,
+                           GimpUndoMode         undo_mode,
+                           GimpUndoAccumulator *accum)
+{
+  GimpVectorsModUndo *vectors_mod_undo = GIMP_VECTORS_MOD_UNDO (undo);
+  GimpVectors        *vectors          = GIMP_VECTORS (GIMP_ITEM_UNDO (undo)->item);
+  GimpVectors        *temp;
+  gint                offset_x;
+  gint                offset_y;
+
+  GIMP_UNDO_CLASS (parent_class)->pop (undo, undo_mode, accum);
+
+  temp = vectors_mod_undo->vectors;
+
+  vectors_mod_undo->vectors =
+    GIMP_VECTORS (gimp_item_duplicate (GIMP_ITEM (vectors),
+                                       G_TYPE_FROM_INSTANCE (vectors)));
+
+  gimp_vectors_freeze (vectors);
+
+  gimp_vectors_copy_strokes (temp, vectors);
+
+  gimp_item_get_offset (GIMP_ITEM (temp), &offset_x, &offset_y);
+  gimp_item_set_offset (GIMP_ITEM (vectors), offset_x, offset_y);
+
+  gimp_item_set_size (GIMP_ITEM (vectors),
+                      gimp_item_get_width  (GIMP_ITEM (temp)),
+                      gimp_item_get_height (GIMP_ITEM (temp)));
+
+  g_object_unref (temp);
+
+  gimp_vectors_thaw (vectors);
+}
+
+static void
+gimp_vectors_mod_undo_free (GimpUndo     *undo,
+                            GimpUndoMode  undo_mode)
+{
+  GimpVectorsModUndo *vectors_mod_undo = GIMP_VECTORS_MOD_UNDO (undo);
+
+  g_clear_object (&vectors_mod_undo->vectors);
+
+  GIMP_UNDO_CLASS (parent_class)->free (undo, undo_mode);
+}