Review Request: Maintain text selection through undo/redo

[Elvis Stansvik]

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http://git.reviewboard.kde.org/r/104098/
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Review request for Calligra, Pierre Stirnweiss and C. Boemann.


Description
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An unfortunate effect of calling QTextDocument::undo/redo is that it will move the cursor to where the change happened, but not the selection (anchor).

This patch makes sure that on construction of a UndoTextCommand, the current cursor and anchor positions are saved. They are then restored after the calls to QTextDocument::undo/redo. The effect is the same behavior as in LO Writer.


Diffs
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  libs/kotext/KoTextEditor_undo.cpp 912540b 

Diff: http://git.reviewboard.kde.org/r/104098/diff/


Testing
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Tested repeatedly making different words bold, then undoing and redoing the operations. The selection is maintained.


Thanks,

Elvis Stansvik

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