Bug 93899

Summary:	[Outline] Tree in outline view flashes
Product:	[Eclipse Project] Platform	Reporter:	Steve Northover <steve_northover>
Component:	UI	Assignee:	Mike Wilson <Mike_Wilson>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	P3	CC:	billy.biggs, steve_northover, Tod_Creasey
Version:	3.1
Target Milestone:	---
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description Steve Northover

2005-05-06 08:23:45 EDT

Commenting and uncommenting main() in a large file such as my _Scrapbook file 
causes the tree in the outline view to flash and scroll.  This could be 
related to the removal of setRedraw() from JFace.

BB and SN to resolve.

Comment 1 Billy Biggs

2005-05-06 14:49:33 EDT

Reproducable on 3.0.2 as well.

Comment 2 Steve Northover

2005-05-06 15:02:35 EDT

Ok, so our setRedraw() changed didn't cause this.  Who should we give this to?

Comment 3 Steve Northover

2006-12-05 14:41:56 EST

Found this.  If many changes are being made to a tree, the application code can use setRedraw() to stop the tree from updating.

Comment 4 Steve Northover

2008-06-03 15:10:55 EDT

It seems that many changes were being made to the tree (ie. multiple scroll requests).  Some plaforms simply set the new top index and redraw the entire tree.  It seems Windows draws right away.  The only way to get rid of this is to use setRedraw() to batch the changes.  This means that application code has to know that it is making multiple changes.

Moving to UI.

Comment 5 Eclipse Webmaster

2019-09-06 16:08:11 EDT

This bug hasn't had any activity in quite some time. Maybe the problem got resolved, was a duplicate of something else, or became less pressing for some reason - or maybe it's still relevant but just hasn't been looked at yet.

If you have further information on the current state of the bug, please add it. The information can be, for example, that the problem still occurs, that you still want the feature, that more information is needed, or that the bug is (for whatever reason) no longer relevant.