Review Request: Correctly trigger executed signal of KListWidget for both single click and double click.

[Yichao Yu]

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http://git.reviewboard.kde.org/r/107829/
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Review request for kdelibs.


Description
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When clicking on a item in a KListWidget, the `executed` signals is not correctly emitted.
If the system-wide setting is to use single click, only `executed( QListWidgetItem *item )` is emitted (once).
If the setting is to use double click, `executed( QListWidgetItem *item )` will be emitted twice and `executed( QListWidgetItem *item, const QPoint &pos )` is emitted once, which cause the edit note dialog in Kontact_KNotePlugin to popup a second time right after close in some cases.

This patch fixes the problem. It is a little hacky but there isn't another easy way to get the position of the single click event except overriding the mouseReleaseEvent function. 


Diffs
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  kdeui/itemviews/klistwidget.h 9309efc 
  kdeui/itemviews/klistwidget.cpp 13497bf 

Diff: http://git.reviewboard.kde.org/r/107829/diff/


Testing
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Compiled kdelibs as well as program that has problem (kontact) and the signal is triggered correctly.


Thanks,

Yichao Yu

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