Review Request 114519: fix endless loop in KLineEdit->setSqueezedText()

[Commit Hook]

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This review has been submitted with commit 9dc18abf5387ef40f6ddff02ef6b5407e70eefe0 by David Faure on behalf of Axel Arnold to branch KDE/4.12.

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On Dec. 20, 2013, 7:11 p.m., Axel Arnold wrote:
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> (Updated Dec. 20, 2013, 7:11 p.m.)
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> Review request for kdelibs.
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> Bugs: 328263
>     http://bugs.kde.org/show_bug.cgi?id=328263
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> Repository: kdelibs
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> Description
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> If KLineEdit has squeezed text enabled, but the widget has still zero width, KLineEdit::setSqueezedText() can go into an endless loop trying to remove more than all letters from the string. This patch fixes both this underrun and the corresponding possible overrun if the squeezed text is too small. The underrun is responsible for endless loops in digikam, see the corresponding bug report.
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> Diffs
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>   kdeui/widgets/klineedit.cpp 2193ef2969d49ad602e66da7776feda4b7595b13 
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> Diff: http://git.reviewboard.kde.org/r/114519/diff/
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> Testing
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> Thanks,
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> Axel Arnold
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