Review Request: Fix KWidgetItemeDelegate to correctly update widget positions when a row gets removed

[Thomas Richard]

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http://svn.reviewboard.kde.org/r/6401/
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Review request for kdelibs, Kevin Ottens and Rafael Fernández López.


Summary
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When a row other then the last got removed from a model, the widgets that are created by the itemdelegate are not moved. This is obviously a big problem when you start removing rows in between. The wrong widgets will show up in the wrong rows. This also happens when you insert a new row instead of appending it.

This patch will update the widgets position of the rows that come behind the one that is inserted/removed. I also had to change QModelIndex to QPersistentModelIndex at one place because the modelindex changes when your remove/insert a row in the middle and new widgets would get created.


Diffs
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  trunk/KDE/kdelibs/kdeui/itemviews/kwidgetitemdelegate.h 1214155 
  trunk/KDE/kdelibs/kdeui/itemviews/kwidgetitemdelegate.cpp 1214155 
  trunk/KDE/kdelibs/kdeui/itemviews/kwidgetitemdelegate_p.h 1214155 
  trunk/KDE/kdelibs/kdeui/itemviews/kwidgetitemdelegatepool_p.h 1214155 

Diff: http://svn.reviewboard.kde.org/r/6401/diff


Testing
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*Compiling
*Insert a row at the start/in the middle/at the end
*Remove a row at the start/in the middle/at the end

Everything seems to work now.


Thanks,

Thomas

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