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Ensure that list is not empty before accessing

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With settings to animate windows in boxswitch it was
possible that an empty list was accessed when the last
window closed.
BUG: 263306
FIXED-IN: 4.7.0
This commit is contained in:
Martin Gräßlin 2011-05-07 11:23:15 +02:00
parent 1dd614ee4b
commit 032c2cc333
1 changed files with 4 additions and 0 deletions
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4
effects/boxswitch/boxswitch.cpp
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@ -547,6 +547,10 @@ void BoxSwitchEffect::calculateItemSizes()
qDeleteAll(windows);
windows.clear();
if ((mAnimateSwitch && !mProxyActivated) || (mProxyActivated && mProxyAnimateSwitch)) {
if (original_windows.isEmpty()) {
// can happen when last window is closed.
return;
}
int index = original_windows.indexOf(effects->currentTabBoxWindow());
int leftIndex = index;
int rightIndex = index + 1;