D17658: Redraw the slider if modes have changed

[Andras Mantia]

amantia created this revision.
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REVISION SUMMARY
  This can happen if a monitor was not configured at all, the KCM is shown
  when it first plugged in and the user selects to not configure it.
  In the UI it will appear with no Resolution/Refresh rate and wrong size in
  the QML view.
  
  Depends on D17657 <https://phabricator.kde.org/D17657>

REPOSITORY
  R104 KScreen

BRANCH
  fix_null_size

REVISION DETAIL
  https://phabricator.kde.org/D17658

AFFECTED FILES
  kcm/src/resolutionslider.cpp
  kcm/src/resolutionslider.h

To: amantia
Cc: plasma-devel, GB_2, ragreen, Pitel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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