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

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. Pick-to: 6.1 6.0 5.15 Change-Id: Ie79f55cd761f9a8f614967c40c23a7f59e700a0f Reviewed-by: Tor Arne Vestbø <[email protected]>
testxsubject · Mar 18, 2021 · aac3329 · aac3329
1 parent 63a0d26
commit aac3329
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/plugins/styles/mac/qmacstyle_mac.mm b/src/plugins/styles/mac/qmacstyle_mac.mm
@@ -5181,7 +5181,7 @@ static void setLayoutItemMargins(int left, int top, int right, int bottom, QRect
         if (const QStyleOptionSlider *sb = qstyleoption_cast<const QStyleOptionSlider *>(opt)) {
 
             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)
                 break;