D11274: Fix font rendering for non-HiDPI and integer scale factors

[Nathaniel Graham]

ngraham created this revision.
ngraham added reviewers: mart, davidedmundson, broulik.
Restricted Application added a project: Plasma.
Restricted Application added a subscriber: plasma-devel.
ngraham requested review of this revision.

REVISION SUMMARY
  QQC2-desktop-style was attempting to force the use of `Text.QtRendering` for non-integer scale factors. However, it was accidentally using it everywhere. This patch resolves the issue, and makes it use `Text.QtRendering` only for non-integer scale factors.
  
  BUG: 391780
  FIXED-IN: 5.45

TEST PLAN
  No visual changes when there is a non-integer scale factor.
  
  Before, no scale factor:
  
  After, no scale factor

REPOSITORY
  R858 Qt Quick Controls 2: Desktop Style

BRANCH
  fix-font-rendering-for-non-hidpi-and-integer-scale-factors (branched from master)

REVISION DETAIL
  https://phabricator.kde.org/D11274

AFFECTED FILES
  org.kde.desktop/ComboBox.qml
  org.kde.desktop/Label.qml
  org.kde.desktop/TextArea.qml
  org.kde.desktop/TextField.qml

To: ngraham, mart, davidedmundson, broulik
Cc: plasma-devel, ZrenBot, lesliezhai, ali-mohamed, jensreuterberg, abetts, sebas, apol, mart
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