Bug 131625

Summary: Invalid object coordinates on resize of view object
Product: [Applications] kst Reporter: Andrew Walker <arwalker>
Component: generalAssignee: kst
Status: RESOLVED FIXED    
Severity: normal    
Priority: NOR    
Version: 1.x   
Target Milestone: ---   
Platform: Compiled Sources   
OS: Linux   
Latest Commit: Version Fixed In:

Description Andrew Walker 2006-08-01 01:15:03 UTC 
Version:           HEAD (using KDE KDE 3.5.0)
Installed from:    Compiled From Sources
OS:                Linux

PROBLEM:
Kst will crash when the user resizes a plot

STEPS TO REPRODUCE:
Start Kst
Create a single plot
Enter layout mode
Resize the plot from the lower centre resize point

RESULTS:
Crash
kst: kstviewobject.cpp:1464: virtual void KstViewObject::updateFromAspect(): Assertion `_geom.left() >= 0 && _geom.top() >= 0 && !_geom.size().isNull()' failed.
KCrash: Application 'kst' crashing...

EXPECTED RESULT:
The plot resizes correctly
Comment 1 George Staikos 2006-08-01 01:42:37 UTC 
Appears to be related to the merge of the view aspect branch.   I will back out that merge if the fix isn't obvious.  I'm working on it.  It's really unfortunate that this stuff wasn't tested thoroughly while it was in the branch.  From now on I won't merge any branches unless they're fully tested.
Comment 2 Andrew Walker 2006-08-01 02:09:27 UTC 
SVN commit 568394 by arwalker:

BUG:131625 Correctly normalize the new QRect

 M  +11 -0     kstgfxmousehandlerutils.cpp  


--- trunk/extragear/graphics/kst/src/libkstapp/kstgfxmousehandlerutils.cpp #568393:568394
@@ -152,6 +152,17 @@
       newSize.setRight(anchorPoint.x() - int(newHalfWidth));
     }
 
+  if (newSize.width() < 0) {
+    int width = newSize.width();
+    newSize.setLeft(newSize.left() + width);
+    newSize.setRight(width * -1);
+  }
+  if (newSize.height() < 0) {
+    int height = newSize.height();
+    newSize.setTop(newSize.top() + height);
+    newSize.setHeight(height * -1);
+  }
+      
     newSize = newSize.normalize();
 
     return newSize;
Comment 3 Duncan Hanson 2006-08-01 17:55:16 UTC 
The problem is that KstViewObject::move is being called on the plot with
an invalid pos of (-1,0). I don't know where this call is originating
from, or why it's happening- can anyone more familiar with the
architecture explain?

Duncan.

On Mon, 2006-07-31 at 23:42 +0000, George Staikos wrote:
[bugs.kde.org quoted mail]