Review Request 109700: Make KoProgressProxy (re)usuable without KoMainWindow

[Commit Hook]

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This review has been submitted with commit fc7ca3fcef301d4b4737413c14d63c0b650fb903 by Sebastian Sauer to branch master.

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On March 25, 2013, 4:47 a.m., Sebastian Sauer wrote:
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> (Updated March 25, 2013, 4:47 a.m.)
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> Review request for Calligra.
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> Description
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> Changes:
> * Introduced getter matching to thesetter for the KoProgressProxy* to KoDocument.
> * Changed KoPart::openFile and KoPart::saveFile to NOT overwrite KoDocument's KoProgressProxy* if there is already one set.
> * Be sure if KoPart::openFile and KoPart::saveFile set a KoProgressProxy* in KoDocument they set the KoDocument's KoProgressProxy* back to NULL once done rather then ending with a dangling pointer in KoDocument.
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> Motivation:
> KoMainWindow is QtGui and so far handles all the progress-display logic. This patches changes that behavior to allow from outside to inject an own KoProgressProxy and not have KoDocument overwrite that again. This enables display of loading/saving progress in all non KoMainWindow-based applications like Coffice or Calligra Active. Coffice already contains some code to proper display that progress. In short: Inherit from KoProgessProxy (to be able to forward/evaluate that setValue or use it direct to fill your progressbar) and after you got the KoPart do myKoPartInstance->document()->setProgressProxy(myProgressProxyInstance). You not need to reset that later on on every load/save.
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> Diffs
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>   libs/main/KoDocument.h 287a56d 
>   libs/main/KoDocument.cpp 13e7258 
>   libs/main/KoPart.cpp d1e86e5 
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> Diff: http://git.reviewboard.kde.org/r/109700/diff/
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> Testing
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> Thanks,
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> Sebastian Sauer
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