Prevent subclassing of gestures

For now, at least. We do this by hiding the instance and
class structures in private headers.

1 files changed, 47 insertions, 0 deletions

diff --git a/gtk/gtkgesturedragprivate.h b/gtk/gtkgesturedragprivate.h
new file mode 100644
index 0000000000..63edc7e265
--- /dev/null
+++ b/gtk/gtkgesturedragprivate.h
@@ -0,0 +1,47 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2014, Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author(s): Carlos Garnacho <carlosg@gnome.org>
+ */
+#ifndef __GTK_GESTURE_DRAG_PRIVATE_H__
+#define __GTK_GESTURE_DRAG_PRIVATE_H__
+
+#include "gtkgesturesingleprivate.h"
+#include "gtkgesturedrag.h"
+
+struct _GtkGestureDrag
+{
+  GtkGestureSingle parent_instance;
+};
+
+struct _GtkGestureDragClass
+{
+  GtkGestureSingleClass parent_class;
+
+  void (* drag_begin)  (GtkGestureDrag *gesture,
+                        gdouble         start_x,
+                        gdouble         start_y);
+  void (* drag_update) (GtkGestureDrag *gesture,
+                        gdouble         offset_x,
+                        gdouble         offset_y);
+  void (* drag_end)    (GtkGestureDrag *gesture,
+                        gdouble         offset_x,
+                        gdouble         offset_y);
+  /*<private>*/
+  gpointer padding[10];
+};
+
+#endif /* __GTK_GESTURE_DRAG_PRIVATE_H__ */