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https://git.reviewboard.kde.org/r/115397/
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Review request for Plasma, Martin Klapetek and Harald Sitter.


Repository: kdelibs


Description
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A variation of https://git.reviewboard.kde.org/r/115326 which also cleans up 
when the metadata.desktop file in the theme changes at runtime.

This resulted in moving the creation of the svg cache file into useCache(), 
which makes more sense anyways. Even if discardCache was always called before 
methods checked for d->svgElementsCache, that is obviously not only 
non-intuitive but hard to track in the code (changes are scheduled via a 
timer...) making that more brittle than necessary. Upon review of the code, 
there is no reason to expect there to be an svg elements cache if caching is 
turned off (the svg files need to be opened in that case anyways, so nothing is 
really being saved). This simplifies discardCaches and creates consistency 
between how the two cache files (image and svg elements) are used in the rest 
of the code base.

Fixes pulled in from Harald's patch include checking the time of the file 
before creating the image cache object to preserve correct mtime and versioning 
the image cache file name appropriately. 


Diffs
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  plasma/theme.cpp cb44878 

Diff: https://git.reviewboard.kde.org/r/115397/diff/


Testing
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changed desktop theme version in meatadata.desktop between runs of 
plasma-desktop: cache files changed to correct versions

changed config file *during* plasma-desktop running: caches files changed to 
correct versions

no change between runs: cache files retained


Thanks,

Aaron J. Seigo

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