gdk: Add gdk_toplevel_begin_move/resize

For now, these are wrappers around the surface apis,
but they are going to replace them, since this operation
is only available on toplevels.

1 files changed, 50 insertions, 0 deletions

diff --git a/gdk/gdktoplevel.c b/gdk/gdktoplevel.c
index 96e4982627..7c10511ca9 100644
--- a/gdk/gdktoplevel.c
+++ b/gdk/gdktoplevel.c
@@ -23,6 +23,8 @@
 #include "gdk-private.h"
 #include "gdktoplevelprivate.h"
 
+#include <math.h>
+
 /**
  * SECTION:gdktoplevel
  * @Short_description: Interface for toplevel surfaces
@@ -512,3 +514,51 @@ gdk_toplevel_restore_system_shortcuts (GdkToplevel *toplevel)
 
   GDK_TOPLEVEL_GET_IFACE (toplevel)->restore_system_shortcuts (toplevel);
 }
+
+/**
+ * gdk_toplevel_begin_resize:
+ * @toplevel: a #GdkToplevel
+ * @edge: the edge or corner from which the drag is started
+ * @device: the device used for the operation
+ * @button: the button being used to drag, or 0 for a keyboard-initiated drag
+ * @x: surface X coordinate of mouse click that began the drag
+ * @y: surface Y coordinate of mouse click that began the drag
+ * @timestamp: timestamp of mouse click that began the drag (use gdk_event_get_time())
+ *
+ * Begins an interactive resize operation (for a toplevel surface).
+ * You might use this function to implement a “window resize grip.”
+ */
+void
+gdk_toplevel_begin_resize (GdkToplevel    *toplevel,
+                           GdkSurfaceEdge  edge,
+                           GdkDevice      *device,
+                           int             button,
+                           double          x,
+                           double          y,
+                           guint32         timestamp)
+{
+  gdk_surface_begin_resize_drag (GDK_SURFACE (toplevel), edge, device, button, round (x), round (y), timestamp);
+}
+
+/**
+ * gdk_toplevel_begin_move:
+ * @toplevel: a #GdkToplevel
+ * @device: the device used for the operation
+ * @button: the button being used to drag, or 0 for a keyboard-initiated drag
+ * @x: surface X coordinate of mouse click that began the drag
+ * @y: surface Y coordinate of mouse click that began the drag
+ * @timestamp: timestamp of mouse click that began the drag
+ *
+ * Begins an interactive move operation (for a toplevel surface).
+ * You might use this function to implement draggable titlebars.
+ */
+void
+gdk_toplevel_begin_move (GdkToplevel *toplevel,
+                         GdkDevice   *device,
+                         int          button,
+                         double       x,
+                         double       y,
+                         guint32      timestamp)
+{
+  gdk_surface_begin_move_drag (GDK_SURFACE (toplevel), device, button, round (x), round (y), timestamp);
+}