D14898: Create shadow tiles on demand

[Kai Uwe Broulik]

broulik created this revision.
broulik added reviewers: Plasma, ngraham, zzag.
Herald added a project: Plasma.
Herald added a subscriber: plasma-devel.
broulik requested review of this revision.

REVISION SUMMARY
  Breeze spent 70ms on every application startup loading the shadow tiles, despite them only being used for e.g. context menus. Create them only as needed.

TEST PLAN
  - Context menu shadows still look fine
  - MDI windows don't have any shadows here but that is also without this patch..

REPOSITORY
  R31 Breeze

REVISION DETAIL
  https://phabricator.kde.org/D14898

AFFECTED FILES
  kstyle/breezemdiwindowshadow.cpp
  kstyle/breezemdiwindowshadow.h
  kstyle/breezeshadowhelper.cpp
  kstyle/breezestyle.cpp

To: broulik, #plasma, ngraham, zzag
Cc: plasma-devel, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.kde.org/pipermail/plasma-devel/attachments/20180817/0ea80872/attachment.html>