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  1. Qt
  2. QTBUG-25650

Bug with QGraphicsOpacityEffect and ScrollArea.

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Details

    • Bug
    • Resolution: Out of scope
    • Not Evaluated
    • None
    • 4.8.0
    • Widgets: GraphicsView
    • None
    • Ubuntu 12.04

    Description

      So I have a widget. Inside the widget there is a scrollarea..
      If i try this:

      QGraphicsOpacityEffect* opacityEffect = new QGraphicsOpacityEffect(this);
    opacityEffect->setOpacity(0.0);
    ui->widget->setGraphicsEffect(opacityEffect);
    QPropertyAnimation* anim = new QPropertyAnimation(this);
    anim->setTargetObject(opacityEffect);
    anim->setPropertyName("opacity");
    anim->setDuration(3000);
    anim->setStartValue(opacityEffect->opacity());
    anim->setEndValue(1);
    anim->setEasingCurve(QEasingCurve::OutQuad);
    anim->start(QAbstractAnimation::DeleteWhenStopped);

      which always works with widgets, buttons, labels,etc
      the whole widget will be black

      This is like a scrollarea bug, cause it is the same with groupbox, stackwidget, etc

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            Unassigned Unassigned
            leon Leon Vitanos
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            Dates

              Created:
              Updated:
              Resolved:

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