[haiku-bugs] Re: [Haiku] #5736: LayoutBug, AlignLayoutWith, SplitLayout

  • From: "cipri" <trac@xxxxxxxxxxxx>
  • Date: Sun, 18 Apr 2010 18:31:09 -0000

#5736: LayoutBug, AlignLayoutWith, SplitLayout
--------------------------------+-------------------------------------------
 Reporter:  cipri               |       Owner:  axeld         
     Type:  bug                 |      Status:  new           
 Priority:  normal              |   Milestone:  R1            
Component:  Kits/Interface Kit  |     Version:  R1/Development
 Keywords:                      |   Blockedby:                
 Platform:  All                 |    Blocking:                
--------------------------------+-------------------------------------------

Comment(by cipri):

 Replying to [comment:2 cipri]:
 > Replying to [comment:1 bonefish]:
 > > I think the problem is that the split view doesn't deal correctly with
 layout invalidations (caused by BStringView::SetText() each second) while
 dragging.
 >
 > Perhaps, but I'm not so sure about that. In the source code,
 AlignLayoutWith is called two times. If one of them is uncommented, then
 (if I can remember correctly) it works correctly. So perhaps it is related
 to the alignment.


 sorry, I remembered it wrong :P. (it's the same, if one or two
 alignments).
 (I confused it with something similar
 )
 In the source code, you find these two lines:

 leftLayout->AlignLayoutWith( middleLayout, B_VERTICAL );
 middleLayout->AlignLayoutWith( rightLayout, B_VERTICAL );

 if you make a little change, and turn them into:

 leftLayout->AlignLayoutWith( middleLayout, B_VERTICAL );
 middleLayout->AlignLayoutWith( rightLayout, B_VERTICAL );


 then the program crashes.

 I think both variants should work the same,, fact is, that the second
 variant crashes the program.
 (and this didn't happen, before BGLView - bug (which I reported some time
 ago) was fixed).

-- 
Ticket URL: <http://dev.haiku-os.org/ticket/5736#comment:3>
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