Review Request 123486: Fix a bug when KoResourceItemChooser's current resource was resent on resize

[Dmitry Kazakov]

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https://git.reviewboard.kde.org/r/123486/
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Review request for Calligra.


Repository: calligra


Description
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This patch fixes numerous bugs in KoResourceItemChooser

1) Resizing the widged and then hide/show used to reset currently selected resource. That caused user's paintop presets and styles being invalidated by simply showing the widget on screen. Now this problem has gone, because the madoel()->reset() call is done in two stages with first saving the current selection and then restoring it when the reset is finished.

2) Now the number of columns is calculated dynamically when the widget is being resized. Before the patch there was a weird behaviour: when resizing the widget the tiles were **scaled only**, and after the next hide/show the **number of columns** would be recalculated. Now both steps are executed simultaneously.

3) The size of the preview splitter in KisPatternChooser is now fixed, so the user would see at least something :)


Diffs
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  libs/widgets/KoResourceModel.cpp 3b2f5e3 
  libs/widgets/KoResourceModel.h 06a7135 
  libs/widgets/KoResourceItemView.cpp e5d9e5a 
  libs/widgets/KoResourceItemView.h 9b712ed 
  libs/widgets/KoResourceItemChooser.cpp 6e5c349 
  libs/widgets/KoResourceItemChooser.h e41bd26 
  krita/ui/widgets/kis_pattern_chooser.cc 9568d3b 

Diff: https://git.reviewboard.kde.org/r/123486/diff/


Testing
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Tested in Krita only


Thanks,

Dmitry Kazakov

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