Apache OpenOffice (AOO) Bugzilla – Issue 20249
scrolling a drawing partly covered by a window corrupts the drawing
Last modified: 2005-01-25 15:50:53 UTC
When e.g. the 'Graphics Styles' window is placed partly over the drawing and then the drawing is scrolled with the scrollbars thereby moving it under the 'Graphics Styles' window the drawing easily gets corrupted. Horizontal scrolling works `best'. From my X11 programming experience this is typically the result of not correctly handling the `GraphicsExpose' events that XCopyArea creates.
Created attachment 9738 [details] Example drawing to easily reproduce the described effect
This is reproducible in RC5. I attach a screenshot of the effect.
Created attachment 9777 [details] Screenshot
Reassigned to Armin.
AW->PL: Looks system specific (linux implementation?), no DRawingLayer problem.
looks ugly
The problem occured if a second Scroll (aka XCopyArea) occured before the GraphicsExpose events of the first one were processed. The cure is to wait for either a GraphicsExpose sequence or NoExpose and immediately paint all outstanding requests before a second XCopyArea can occur. fixed in CWS vcl7pp1r3
pl->wg: please verify in CWS vcl7pp1r3
Fixed.
Verfied in CWS.
Tested in internal master. Issue closed. Thanks for your help again.
*** Issue 7817 has been marked as a duplicate of this issue. ***
*** Issue 20368 has been marked as a duplicate of this issue. ***