Resizing oddity

[David Chisnall]

Since upgrading to the latest trunk, I've found redraws over remote  
X11 to be a lot faster.  The file browser, for example, is now  
slightly laggy where previously it was totally unusable.   
Unfortunately there are some serious issues.

When resizing a window, the old rectangle is redrawn, quickly but the  
new region is not painted at all.  Then, after about 5 seconds the  
entire window is redrawn, correctly resized.

There also still seems to be a lot of xlib superfluous round- 
tripping.  Resizing the window a lot fills up the event queue and  
causes mouse events not to be delivered until all of the round-trips  
between the GNUstep app and the X server have been completed, which  
can take tens of seconds even over a fast local link.

David