Add functions to set frame size and position in one compound step

* lisp/frame.el (set-frame-size-and-position): New function.
* src/frame.c (adjust_frame_size): Handle requests to set size
and position.
(Fset_frame_size_and_position_pixelwise): New function.
* src/gtkutil.c (xg_frame_set_size_and_position): New function.
(xg_wm_set_size_hint): Handle any non-NorthWestGravity values
for child frames only.  Some GTK implementations don't like
them.
* src/gtkutil.h (xg_frame_set_size_and_position.): Add external
declaration.
* src/termhooks.h (set_window_size_and_position_hook): New hook.
* src/w32term.c (w32_set_window_size_and_position): New
function.
(w32_create_terminal): Make it the Microsoft Windows API
set_window_size_and_position_hook.
* src/xterm.c (x_set_window_size_and_position_1)
(x_set_window_size_and_position): New functions.
(x_create_terminal): Make x_set_window_size_and_position the
set_window_size_and_position_hook for the X protocol.
* src/xterm.h (x_set_window_size_and_position): Add external
declaration.
* etc/NEWS: Announce new functions.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/termhooks.h b/src/termhooks.h
index e688ed40c0f..5e861051498 100644
--- a/src/termhooks.h
+++ b/src/termhooks.h
@@ -684,6 +684,11 @@ struct terminal
   void (*set_window_size_hook) (struct frame *f, bool change_gravity,
                                 int width, int height);
 
+  /* This hook is called to change the size and position of frame F's
+     native (underlying) window.  */
+  void (*set_window_size_and_position_hook) (struct frame *f, int width,
+                                             int height);
+
   /* CHANGE_GRAVITY is 1 when calling from Fset_frame_position,
    to really change the position, and 0 when calling from
    *_make_frame_visible (in that case, XOFF and YOFF are the current