Some more fixes following pixelwise resize changes including one for Bug#16306.

* gtkutil.c (x_wm_set_size_hint): Have size hints respect value
of frame_resize_pixelwise.
* widget.c (pixel_to_text_size): New function.
(update_wm_hints): Have size hints respect value of
frame_resize_pixelwise.
(EmacsFrameResize): Alway process resize requests pixelwise.
* window.c (grow_mini_window): Make sure mini window is at least
one line tall.
* xdisp.c (display_menu_bar): Make sure menubar extends till
right end of frame.
* xfns.c (x_set_menu_bar_lines): Resize frame windows pixelwise.
(x_set_tool_bar_lines): Calculate pixelwise.
* xterm.c (x_wm_set_size_hint): Have size hints respect value of
frame_resize_pixelwise.

1 files changed, 6 insertions, 4 deletions

diff --git a/src/window.c b/src/window.c
index 9bc95224f7c..1e3d70fd88d 100644
--- a/src/window.c
+++ b/src/window.c
@@ -4582,14 +4582,16 @@ grow_mini_window (struct window *w, int delta, bool pixelwise)
 
           if (pixelwise)
             {
-              pixel_height = min (-XINT (height), INT_MAX - w->pixel_height);
+              pixel_height = max (min (-XINT (height), INT_MAX - w->pixel_height),
+                                  FRAME_LINE_HEIGHT (f));
               line_height = pixel_height / FRAME_LINE_HEIGHT (f);
             }
           else
             {
-              line_height = min (-XINT (height),
-                                 ((INT_MAX - w->pixel_height)
-                                  / FRAME_LINE_HEIGHT (f)));
+              line_height = max (min (-XINT (height),
+                                      ((INT_MAX - w->pixel_height)
+                                       / FRAME_LINE_HEIGHT (f))),
+                                 1);
               pixel_height = line_height * FRAME_LINE_HEIGHT (f);
             }