Review Request: Fix zooming and keep the preferred center

[Thorsten Zachmann]

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http://git.reviewboard.kde.org/r/102988/
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Review request for Calligra.


Description
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When zooming in stage the center is not kept and the zooming does not happen naturally. The problem is that the prefered center was recalaulated as the signal was not set to blocked. Moving the line fixes that.


Diffs
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  libs/flake/KoCanvasControllerWidget.cpp 2e6f1cd 

Diff: http://git.reviewboard.kde.org/r/102988/diff/diff


Testing
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Tested in stage, karbon, krita and words. It works fine in all 4 however there is a repainting problem in words that is unrelared to the patch.


Thanks,

Thorsten Zachmann

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