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macOS: Don't draw scrollbar handle when there is no range

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If the minimum and maximum is set to be the same then we should not
draw the handle. An empty groove should be shown instead.

Change-Id: Ie79f55cd761f9a8f614967c40c23a7f59e700a0f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
(cherry picked from commit aac33296e618e617ab9e05b3c71682a13f2d5dfc)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
This commit is contained in:
Andy Shaw 2021-03-10 12:22:32 +01:00 committed by Qt Cherry-pick Bot
parent eb21e8f7d9
commit fe7bf854f8
1 changed files with 1 additions and 1 deletions
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src/plugins/styles/mac/qmacstyle_mac.mm
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@ -5181,7 +5181,7 @@ void QMacStyle::drawComplexControl(ComplexControl cc, const QStyleOptionComplex
if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt)) { if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
const bool drawTrack = sb->subControls & SC_ScrollBarGroove; const bool drawTrack = sb->subControls & SC_ScrollBarGroove;
const bool drawKnob = sb->subControls & SC_ScrollBarSlider; const bool drawKnob = sb->subControls & SC_ScrollBarSlider && sb->minimum != sb->maximum;
if (!drawTrack && !drawKnob) if (!drawTrack && !drawKnob)
break; break;