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Origin: upstream, commit:443ead70ac77c655095a67bfc0978145fda0c5de
Author: Matt McClinch <mattmcclinch@gmail.com>
Description: Fix #303619: MuseScore crashing when entering font name
Resolves: https://musescore.org/en/node/303619.
.
Passing an empty string to QWidget::setStyleSheet() causes the widget's
current style sheet to be removed, thus causing the widget's style to be
inherited from its parent. This creates a problem in QComboBox::showPopup(),
where it becomes possible that a pointer to a QStyle object could used after
the object itself has been destroyed. A style sheet of " " can be used to
override any previous style sheet without invalidating the current QStyle
object.
--- a/mscore/inspector/inspectorBase.cpp
+++ b/mscore/inspector/inspectorBase.cpp
@@ -344,7 +344,7 @@ void InspectorBase::checkDifferentValues
if (valuesAreDifferent)
break;
}
- ii.w->setStyleSheet(valuesAreDifferent ? QString("* { color: %1 }").arg(c.name()) : "");
+ ii.w->setStyleSheet(valuesAreDifferent ? QString("* { color: %1 }").arg(c.name()) : " ");
}
//deal with reset if only one element, or if values are the same
@@ -359,12 +359,12 @@ void InspectorBase::checkDifferentValues
enableReset = false;
break;
case PropertyFlags::UNSTYLED:
- ii.w->setStyleSheet("");
+ ii.w->setStyleSheet(" ");
enableReset = true;
break;
case PropertyFlags::NOSTYLE:
enableReset = !isDefault(ii);
- ii.w->setStyleSheet("");
+ ii.w->setStyleSheet(" ");
break;
}
}
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