1 files changed, 83 insertions, 0 deletions
diff --git a/app/core/gimpdrawable-offset.c b/app/core/gimpdrawable-offset.c
new file mode 100644
index 0000000..b7f5eb2
--- /dev/null
+++ b/app/core/gimpdrawable-offset.c
@@ -0,0 +1,83 @@
+/* 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 <string.h>
+
+#include <cairo.h>
+#include <gegl.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+
+#include "core-types.h"
+
+#include "gimp.h"
+#include "gimpcontext.h"
+#include "gimpdrawable.h"
+#include "gimpdrawable-offset.h"
+#include "gimpdrawable-operation.h"
+
+#include "gimp-intl.h"
+
+
+void
+gimp_drawable_offset (GimpDrawable   *drawable,
+                      GimpContext    *context,
+                      gboolean        wrap_around,
+                      GimpOffsetType  fill_type,
+                      gint            offset_x,
+                      gint            offset_y)
+{
+  GeglNode *node;
+  gint      width;
+  gint      height;
+
+  g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
+  g_return_if_fail (GIMP_IS_CONTEXT (context));
+
+  if (! gimp_item_mask_intersect (GIMP_ITEM (drawable),
+                                  NULL, NULL, &width, &height))
+    {
+      return;
+    }
+
+  if (wrap_around)
+    fill_type = GIMP_OFFSET_WRAP_AROUND;
+
+  if (fill_type == GIMP_OFFSET_WRAP_AROUND)
+    {
+      offset_x %= width;
+      offset_y %= height;
+    }
+
+  if (offset_x == 0 && offset_y == 0)
+    return;
+
+  node = gegl_node_new_child (NULL,
+                              "operation", "gimp:offset",
+                              "context", context,
+                              "type",    fill_type,
+                              "x",       offset_x,
+                              "y",       offset_y,
+                              NULL);
+
+  gimp_drawable_apply_operation (drawable, NULL,
+                                 C_("undo-type", "Offset Drawable"),
+                                 node);
+
+  g_object_unref (node);
+}