Review Request 129807: proposal: add ksvg2ico

[Christoph Feck]

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Someone more experienced with legal matters should review the verbatim inclusion of Qt code; in particular the license header.

- Christoph Feck


On Jan. 12, 2017, 6:01 p.m., René J.V. Bertin wrote:
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/129807/
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> 
> (Updated Jan. 12, 2017, 6:01 p.m.)
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> 
> Review request for KDE Frameworks, kdewin, Alex Merry, Christoph Feck, and Hannah von Reth.
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> Repository: kiconthemes
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> Description
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> Recently I committed a few changes to `ecm_add_app_icon` that make use of the fact that KIconThemes includes a `ksvg2icns` utility, making it possible to generate an application icon from an SVG file instead of from a series of PNG files. 
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> With the present patch I propose to add an updated and extensively rewritten version of the ageing `svg2ico` tool from the KDEWin project to KIconThemes. The goal is to have a proper and up-to-date tool to generate application icons from SVG on MS Windows too.
> This new version (named `ksvg2ico` in line with `ksvg2icns`) is a standalone tool that combines SVG - PNG conversion with PNG - ICO conversion. More accurately: it renders SVG files to an internal bitmap and then saves those bitmaps (as BMP?) to the .ico file.
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> - it now handles sizes up to 256x256, in part thanks to syncing `QtIcoHandler` with the version from Qt 5.7
> - for that it uses a private copy of that class, with the unused read support disabled. (qicohandler.h isn't available on Mac and Linux so I cannot check building against Qt's internal version).
> - a `--rcfile` option is provided, copied from `png2ico`.
> - the PNG files are still saved and are left for debugging when `--debug` is given.
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> I considered proposing it to KDEWin instead, but in the end I liked the idea better to provide icon conversion utilities for Mac and Windows with a framework, where they might also serve in a less KDE-centric context (and cross-platform development).
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> Diffs
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>   src/CMakeLists.txt efba9e6 
>   src/tools/ksvg2ico/CMakeLists.txt PRE-CREATION 
>   src/tools/ksvg2ico/ksvg2ico.cpp PRE-CREATION 
>   src/tools/ksvg2ico/qicohandler.h PRE-CREATION 
>   src/tools/ksvg2ico/qicohandler.cpp PRE-CREATION 
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> Diff: https://git.reviewboard.kde.org/r/129807/diff/
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> Testing
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> On Mac OS X 10.9 with Qt 5.7.1 and KF5 5.29.0 .
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> File Attachments
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> .ico file generated from sc-apps-calligrakarbon.svgz using ksvg2ico with Benkmann's png2ico
>   https://git.reviewboard.kde.org/media/uploaded/files/2017/01/11/aa0973dc-1be8-4d36-82dc-8f7baa053fee__apps-calligrakarbon.ico
> .ico created by icotool from *-apps-calligrakarbon.png
>   https://git.reviewboard.kde.org/media/uploaded/files/2017/01/12/3bbee1f5-6770-4d6e-847d-e32c7e5d3fe1__icotool-apps-calligrakarbon.png
> ico file generated by the standalone ksvg2ico
>   https://git.reviewboard.kde.org/media/uploaded/files/2017/01/12/7b286997-3100-47d0-800e-acb56ee9c68f__apps-calligrakarbon.ico
> 
> 
> Thanks,
> 
> René J.V. Bertin
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>

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