Review Request: make Calligra thumbnailer functional again

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This review has been submitted with commit ca51fcfc7b51480da36c0a7562a28da1163fb7e7 by Friedrich W. H. Kossebau to branch master.

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On July 4, 2012, 1:08 p.m., Friedrich W. H. Kossebau wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/105373/
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> 
> (Updated July 4, 2012, 1:08 p.m.)
> 
> 
> Review request for Calligra and Boudewijn Rempt.
> 
> 
> Description
> -------
> 
> Currently the Calligra thumbnailer is slightly broken:
> * it claims to support a fixed set of mimetypes, even if not all of Calligra is built.
> * it reports the flags like BlendIcon based on the last document a preview was done for
> * it does not offer to create mimetypes for formats supported by import filters
> * it might not really wait for the rendering of the loaded document
> 
> Attached patch fixes that by:
> * duplicate into two plugins:
>   calligraimagethumbnail for preview without blending the icon (for all image formats),
>   calligrathumbnail for preview with blending the icon (for all other)
> * wait for result of thumbnail rendering
> * extends the range of supported mimetypes with the MS formats and some other otherwise not done.
> * install separate thumbnail descriptions per import filter and only if
>   the import filter is installed
> * put a white background behind extracted mimetypes (as OO/LI creates transparent backgrounds which look bad then)
> 
> But this uncovers some problems:
> First is that at least for xfig images the imagethumbnailer of kde-runtime hides the Calligra-based one. A patch to fix this is commited to kde-runtime for 4.8.5 and 4.9.0.
> Second is that the result of some KoDocument subclasses is not really perfect, Words and Flow/Stage have seen fixes, but at least Sheets still needs one. Separate issue, separate patch, as this also is valid for the thumbnails added on storing ODS.
> 
> And some filters could possibly use a preview image from the original format? But that is also outside the scope of this patch.
> 
> Okay to backport to 2.5? Would ask for string freeze exception for all the separate mimetypes.
> 
> 
> Diffs
> -----
> 
>   filters/flow/visio/import/CMakeLists.txt 0f42264 
>   filters/flow/visio/import/flow_vsdx_thumbnail.desktop PRE-CREATION 
>   filters/karbon/karbon1.x/CMakeLists.txt 127a2aa 
>   filters/karbon/karbon1.x/karbon_karbon1x_thumbnail.desktop PRE-CREATION 
>   filters/karbon/xfig/CMakeLists.txt b3b21a9 
>   filters/karbon/xfig/karbon_xfig_thumbnail.desktop PRE-CREATION 
>   filters/sheets/excel/import/CMakeLists.txt 7ae3cbb 
>   filters/sheets/excel/import/sheets_excel_thumbnail.desktop PRE-CREATION 
>   filters/sheets/xlsx/CMakeLists.txt a637afa 
>   filters/sheets/xlsx/sheets_xlsx_thumbnail.desktop PRE-CREATION 
>   filters/stage/kpr2odf/CMakeLists.txt 96b5650 
>   filters/stage/kpr2odf/stage_kpr_thumbnail.desktop PRE-CREATION 
>   filters/stage/powerpoint/CMakeLists.txt 8e5478c 
>   filters/stage/powerpoint/stage_powerpoint_thumbnail.desktop PRE-CREATION 
>   filters/stage/pptx/CMakeLists.txt 3332270 
>   filters/stage/pptx/stage_pptx_thumbnail.desktop PRE-CREATION 
>   filters/words/docx/CMakeLists.txt 30111e4 
>   filters/words/docx/words_docx_thumbnail.desktop PRE-CREATION 
>   filters/words/msword-odf/CMakeLists.txt 2f79f7b 
>   filters/words/msword-odf/words_msword_thumbnail.desktop PRE-CREATION 
>   filters/words/rtf/import/CMakeLists.txt 4a6fe10 
>   filters/words/rtf/import/words_rtf_thumbnail.desktop PRE-CREATION 
>   filters/words/wordperfect/import/CMakeLists.txt 5efb0b0 
>   filters/words/wordperfect/import/words_wpd_thumbnail.desktop PRE-CREATION 
>   filters/words/works/import/CMakeLists.txt 83f5254 
>   filters/words/works/import/words_wps_thumbnail.desktop PRE-CREATION 
>   krita/plugins/formats/ora/CMakeLists.txt 666de52 
>   krita/plugins/formats/ora/krita_ora_thumbnail.desktop PRE-CREATION 
>   tools/thumbnail/CMakeLists.txt f7aac3f 
>   tools/thumbnail/calligracreator.h dfe50d2 
>   tools/thumbnail/calligracreator.cpp 804b0db 
>   tools/thumbnail/calligraodgthumbnail.desktop PRE-CREATION 
>   tools/thumbnail/calligrathumbnail.desktop 2c2272c 
>   tools/thumbnail/kritathumbnail.desktop PRE-CREATION 
>   tools/thumbnail/otherofficethumbnail.desktop e62eba1 
>   tools/thumbnail/sheetsodsthumbnail.desktop PRE-CREATION 
>   tools/thumbnail/stageodpthumbnail.desktop PRE-CREATION 
>   tools/thumbnail/wordsodtthumbnail.desktop PRE-CREATION 
> 
> Diff: http://git.reviewboard.kde.org/r/105373/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Friedrich W. H. Kossebau
> 
>

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