Review Request 127779: use system colors for monochrome icons

Marco Martin notmart at gmail.com
Mon May 9 13:53:35 UTC 2016


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https://git.reviewboard.kde.org/r/127779/
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(Updated May 9, 2016, 7:23 p.m.)


Status
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This change has been marked as submitted.


Review request for KDE Frameworks and Plasma.


Changes
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Submitted with commit 2db5bafdb675e75168a101843620e7416b46cc34 by Marco Martin to branch master.


Repository: kiconthemes


Description
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Breeze uses stylesheet information to color its icons with some "named" colors that change depending from the current system color scheme, this is already used since some time in the icons used by the Plasma shell.
But QWidget applications have the same problem, when the user changes the color scheme from breeze to breeze dark (or any color scheme), most of the icons will be black on black.
This patch clones (a bit simplified and taking only the most "important" colors) the logic used by Plasma::Svg to color icons with the stylesheet.

even tough it's doing more things at icon generation, an application that uses a lot of icons like Dolphin doesn't seem to have noticeable startup time difference, even when the image cache is not present yet, so i hope is not an unacceptable performance tradeoff (successive loads are unchanged as are from the image cache).

still some questions and things that can be optimized, like

* an optional key in the theme metadata file to explicitly enable this, to not have it running in themes that don't care?

* can i use karchive in this framework?, so it would work with svgz icons as well

* right now to refresh icons at runtime it depends from a patch in the colors kcm to emit iconchanges as well, alternatively kiconloader could watch for kcolorscheme changes as well, but i don't think is strictly necessary


Diffs
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  CMakeLists.txt 5c7cbe5 
  autotests/coloredsvgicon.svg PRE-CREATION 
  autotests/kiconloader_unittest.cpp ca97559 
  autotests/resources.qrc a19c963 
  src/CMakeLists.txt 0e30a35 
  src/kiconloader.cpp 6ce7ecd 
  src/kicontheme.h 5b1229c 
  src/kicontheme.cpp f8c0a37 

Diff: https://git.reviewboard.kde.org/r/127779/diff/


Testing
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File Attachments
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dadel1.png
  https://git.reviewboard.kde.org/media/uploaded/files/2016/04/28/0fc42425-947c-479e-9759-09c7a703a456__dadel1.png
Gwenview in fullscreen flips colors
  https://git.reviewboard.kde.org/media/uploaded/files/2016/05/04/1c0cab70-a54f-4533-b5e9-0b3af07ae087__dadel2.png


Thanks,

Marco Martin

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