D5092: [KMessageWidget] Fix wrong size hint when animatedShow() is called with a hidden parentWidget()

[Christoph Feck]

cfeck created this revision.
Restricted Application added a project: Frameworks.
Restricted Application added a subscriber: Frameworks.

REVISION SUMMARY
  If the parent widget is not visible, then immediately show() the message widget to compute proper size hint. Otherwise, when the widget is later implicitely shown when parent gets visible, we are too late.
  
  Fixes https://bugs.kde.org/show_bug.cgi?id=377676

REPOSITORY
  R236 KWidgetsAddons

REVISION DETAIL
  https://phabricator.kde.org/D5092

AFFECTED FILES
  src/kmessagewidget.cpp

To: cfeck, kossebau, elvisangelaccio
Cc: #frameworks
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