当前位置: 首页>>代码示例>>C++>>正文


C++ TextureMapperLayer::computeOverlapRegions方法代码示例

本文整理汇总了C++中TextureMapperLayer::computeOverlapRegions方法的典型用法代码示例。如果您正苦于以下问题:C++ TextureMapperLayer::computeOverlapRegions方法的具体用法?C++ TextureMapperLayer::computeOverlapRegions怎么用?C++ TextureMapperLayer::computeOverlapRegions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TextureMapperLayer的用法示例。


在下文中一共展示了TextureMapperLayer::computeOverlapRegions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: computeOverlapRegions

void TextureMapperLayer::computeOverlapRegions(Region& overlapRegion, Region& nonOverlapRegion, ResolveSelfOverlapMode mode)
{
    if (!m_state.visible || !m_state.contentsVisible)
        return;

    FloatRect boundingRect;
    if (m_backingStore || m_state.masksToBounds || m_state.maskLayer || hasFilters())
        boundingRect = layerRect();
    else if (m_contentsLayer || m_state.solidColor.alpha())
        boundingRect = m_state.contentsRect;

#if ENABLE(CSS_FILTERS)
    if (m_currentFilters.hasOutsets()) {
        FilterOutsets outsets = m_currentFilters.outsets();
        IntRect unfilteredTargetRect(boundingRect);
        boundingRect.move(std::max(0, -outsets.left()), std::max(0, -outsets.top()));
        boundingRect.expand(outsets.left() + outsets.right(), outsets.top() + outsets.bottom());
        boundingRect.unite(unfilteredTargetRect);
    }
#endif

    TransformationMatrix replicaMatrix;
    if (m_state.replicaLayer) {
        replicaMatrix = replicaTransform();
        boundingRect.unite(replicaMatrix.mapRect(boundingRect));
    }

    boundingRect = m_currentTransform.combined().mapRect(boundingRect);

    // Count all masks and filters as overlap layers.
    if (hasFilters() || m_state.maskLayer || (m_state.replicaLayer && m_state.replicaLayer->m_state.maskLayer)) {
        Region newOverlapRegion(enclosingIntRect(boundingRect));
        nonOverlapRegion.subtract(newOverlapRegion);
        overlapRegion.unite(newOverlapRegion);
        return;
    }

    Region newOverlapRegion;
    Region newNonOverlapRegion(enclosingIntRect(boundingRect));

    if (!m_state.masksToBounds) {
        for (size_t i = 0; i < m_children.size(); ++i) {
            TextureMapperLayer* child = m_children[i];
            child->computeOverlapRegions(newOverlapRegion, newNonOverlapRegion, ResolveSelfOverlapIfNeeded);
        }
    }

    if (m_state.replicaLayer) {
        newOverlapRegion.unite(replicaMatrix.mapRect(newOverlapRegion.bounds()));
        Region replicaRegion(replicaMatrix.mapRect(newNonOverlapRegion.bounds()));
        resolveOverlaps(replicaRegion, newOverlapRegion, newNonOverlapRegion);
    }

    if ((mode != ResolveSelfOverlapAlways) && shouldBlend()) {
        newNonOverlapRegion.unite(newOverlapRegion);
        newOverlapRegion = Region();
    }

    overlapRegion.unite(newOverlapRegion);
    resolveOverlaps(newNonOverlapRegion, overlapRegion, nonOverlapRegion);
}
开发者ID:boska,项目名称:webkit,代码行数:61,代码来源:TextureMapperLayer.cpp


注:本文中的TextureMapperLayer::computeOverlapRegions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。