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C++ QPropertyAnimation::blockSignals方法代码示例

本文整理汇总了C++中QPropertyAnimation::blockSignals方法的典型用法代码示例。如果您正苦于以下问题:C++ QPropertyAnimation::blockSignals方法的具体用法?C++ QPropertyAnimation::blockSignals怎么用?C++ QPropertyAnimation::blockSignals使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在QPropertyAnimation的用法示例。


在下文中一共展示了QPropertyAnimation::blockSignals方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: setScrollOffset

void KItemListViewAnimation::setScrollOffset(qreal offset)
{
    const qreal diff = m_scrollOffset - offset;
    m_scrollOffset = offset;

    // The change of the offset requires that the position of all
    // animated QGraphicsWidgets get adjusted. An exception is made
    // for the delete animation that should just fade away on the
    // existing position.
    for (int type = 0; type < AnimationTypeCount; ++type) {
        if (type == DeleteAnimation) {
            continue;
        }

        QHashIterator<QGraphicsWidget*, QPropertyAnimation*>  it(m_animation[type]);
        while (it.hasNext()) {
            it.next();

            QGraphicsWidget* widget = it.key();
            QPropertyAnimation* propertyAnim = it.value();

            QPointF currentPos = widget->pos();
            if (m_scrollOrientation == Qt::Vertical) {
                currentPos.ry() += diff;
            } else {
                currentPos.rx() += diff;
            }

            if (type == MovingAnimation) {
                // Stop the animation, calculate the moved start- and end-value
                // and restart the animation for the remaining duration.
                const int remainingDuration = propertyAnim->duration()
                                              - propertyAnim->currentTime();

                const bool block = propertyAnim->signalsBlocked();
                propertyAnim->blockSignals(true);
                propertyAnim->stop();

                QPointF endPos = propertyAnim->endValue().toPointF();
                if (m_scrollOrientation == Qt::Vertical) {
                    endPos.ry() += diff;
                } else {
                    endPos.rx() += diff;
                }

                propertyAnim->setDuration(remainingDuration);
                propertyAnim->setStartValue(currentPos);
                propertyAnim->setEndValue(endPos);
                propertyAnim->start();
                propertyAnim->blockSignals(block);
            } else {
                widget->setPos(currentPos);
            }
        }
    }
}
开发者ID:stream009,项目名称:dolphin,代码行数:56,代码来源:kitemlistviewanimation.cpp


注:本文中的QPropertyAnimation::blockSignals方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。