C++ (Cpp) RenderLayer::reflectionInfo示例

void GraphicsLayerUpdater::update(RenderLayer& layer, UpdateType updateType)
{
    if (layer.hasCompositedLayerMapping()) {
        CompositedLayerMappingPtr mapping = layer.compositedLayerMapping();

        // Note carefully: here we assume that the compositing state of all descendants have been updated already,
        // so it is legitimate to compute and cache the composited bounds for this layer.
        mapping->updateCompositedBounds(updateType);

        if (RenderLayerReflectionInfo* reflection = layer.reflectionInfo()) {
            if (reflection->reflectionLayer()->hasCompositedLayerMapping())
                reflection->reflectionLayer()->compositedLayerMapping()->updateCompositedBounds(ForceUpdate);
        }

        mapping->updateGraphicsLayerConfiguration();
        updateType = mapping->updateGraphicsLayerGeometry(updateType);
        mapping->clearNeedsGeometryUpdate();

        if (!layer.parent())
            layer.compositor()->updateRootLayerPosition();

        if (mapping->hasUnpositionedOverflowControlsLayers())
            layer.scrollableArea()->positionOverflowControls();
    }

    for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
        update(*child, updateType);
}

示例#2

显示文件

文件： GraphicsLayerUpdater.cpp 项目： jeremyroman/blink

void GraphicsLayerUpdater::update(RenderLayer& layer, UpdateType updateType, const UpdateContext& context)
{
    if (layer.hasCompositedLayerMapping()) {
        CompositedLayerMappingPtr mapping = layer.compositedLayerMapping();

        const RenderLayer* compositingContainer = context.compositingContainer(layer);
        ASSERT(compositingContainer == layer.ancestorCompositingLayer());
        if (mapping->updateRequiresOwnBackingStoreForAncestorReasons(compositingContainer))
            updateType = ForceUpdate;

        // Note carefully: here we assume that the compositing state of all descendants have been updated already,
        // so it is legitimate to compute and cache the composited bounds for this layer.
        mapping->updateCompositedBounds(updateType);

        if (RenderLayerReflectionInfo* reflection = layer.reflectionInfo()) {
            if (reflection->reflectionLayer()->hasCompositedLayerMapping())
                reflection->reflectionLayer()->compositedLayerMapping()->updateCompositedBounds(ForceUpdate);
        }

        if (mapping->updateGraphicsLayerConfiguration(updateType))
            m_needsRebuildTree = true;

        mapping->updateGraphicsLayerGeometry(updateType, compositingContainer);

        updateType = mapping->updateTypeForChildren(updateType);
        mapping->clearNeedsGraphicsLayerUpdate();

        if (!layer.parent())
            layer.compositor()->updateRootLayerPosition();

        if (mapping->hasUnpositionedOverflowControlsLayers())
            layer.scrollableArea()->positionOverflowControls();
    }

    UpdateContext childContext(context, layer);
    for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
        update(*child, updateType, childContext);
}