Solving ancient Blender window sizing issue;

- Removed grid-snapping for area coordinates on scaling windows. 
  That caused the areas to shrink or expand, and eventually corrupt screen layouts.

- Added simple but efficient life resize for OSX. I need to know why this is so much
  code for Windows... I suggest Windows to just copy same method; dispatch the queue,
  and just let the event system draw.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/windowmanager/intern/wm_window.c b/source/blender/windowmanager/intern/wm_window.c
index fe419010780..282e14cc5fe 100644
--- a/source/blender/windowmanager/intern/wm_window.c
+++ b/source/blender/windowmanager/intern/wm_window.c
@@ -900,6 +900,13 @@ static int ghost_event_proc(GHOST_EventHandle evt, GHOST_TUserDataPtr C_void_ptr
 						wm_draw_window_clear(win);
 						WM_event_add_notifier(C, NC_SCREEN | NA_EDITED, NULL);
 						WM_event_add_notifier(C, NC_WINDOW | NA_EDITED, NULL);
+						
+#if defined(__APPLE__)
+						/* OSX doesn't return to the mainloop while resize */
+						wm_event_do_handlers(C);
+						wm_event_do_notifiers(C);
+						wm_draw_update(C);
+#endif
 					}
 				}
 				break;