D26720: Cache single image wallpapers locally

[Tranter Madi]

trmdi added inline comments.

INLINE COMMENTS

> image.cpp:503
> +        // check the cache
> +        } else if (QFile::exists(m_cachedWallpaperPath)) {
> +            m_wallpaperPath = m_cachedWallpaperPath;

`QDir::mkpath` is better: https://doc.qt.io/qt-5/qdir.html#mkpath

REPOSITORY
  R120 Plasma Workspace

REVISION DETAIL
  https://phabricator.kde.org/D26720

To: ngraham, #plasma, davidedmundson
Cc: trmdi, davidedmundson, broulik, filipf, plasma-devel, Orage, LeGast00n, The-Feren-OS-Dev, jraleigh, zachus, fbampaloukas, GB_2, ragreen, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, ahiemstra, mart
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