当前位置: 首页>>代码示例>>C++>>正文


C++ LayoutBoxModelObject::container方法代码示例

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


在下文中一共展示了LayoutBoxModelObject::container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: LayoutSize

PaintInvalidationState::PaintInvalidationState(PaintInvalidationState& next, LayoutBoxModelObject& layoutObject, const LayoutBoxModelObject& paintInvalidationContainer)
    : m_clipped(false)
    , m_cachedOffsetsEnabled(true)
    , m_forcedSubtreeInvalidationWithinContainer(next.m_forcedSubtreeInvalidationWithinContainer)
    , m_forcedSubtreeInvalidationRectUpdateWithinContainer(next.m_forcedSubtreeInvalidationRectUpdateWithinContainer)
    , m_viewClippingAndScrollOffsetDisabled(false)
    , m_paintInvalidationContainer(paintInvalidationContainer)
    , m_pendingDelayedPaintInvalidations(next.pendingDelayedPaintInvalidationTargets())
    , m_enclosingSelfPaintingLayer(next.enclosingSelfPaintingLayer(layoutObject))
{
    // FIXME: SVG could probably benefit from a stack-based optimization like html does. crbug.com/391054
    bool establishesPaintInvalidationContainer = layoutObject == m_paintInvalidationContainer;
    bool fixed = layoutObject.style()->position() == FixedPosition;

    if (!layoutObject.supportsPaintInvalidationStateCachedOffsets() || !next.m_cachedOffsetsEnabled)
        m_cachedOffsetsEnabled = false;
    if (establishesPaintInvalidationContainer) {
        // When we hit a new paint invalidation container, we don't need to
        // continue forcing a check for paint invalidation, since we're
        // descending into a different invalidation container. (For instance if
        // our parents were moved, the entire container will just move.)
        m_forcedSubtreeInvalidationWithinContainer = false;
    } else {
        if (m_cachedOffsetsEnabled) {
            if (fixed) {
                FloatPoint fixedOffset = layoutObject.localToAncestorPoint(FloatPoint(), &m_paintInvalidationContainer, TraverseDocumentBoundaries);
                m_paintOffset = LayoutSize(fixedOffset.x(), fixedOffset.y());
            } else {
                LayoutSize offset = layoutObject.isBox() && !layoutObject.isTableRow() ? toLayoutBox(layoutObject).locationOffset() : LayoutSize();
                m_paintOffset = next.m_paintOffset + offset;
            }

            if (layoutObject.isOutOfFlowPositioned() && !fixed) {
                if (LayoutObject* container = layoutObject.container()) {
                    if (container->style()->hasInFlowPosition() && container->isLayoutInline())
                        m_paintOffset += toLayoutInline(container)->offsetForInFlowPositionedInline(toLayoutBox(layoutObject));
                }
            }

            if (layoutObject.style()->hasInFlowPosition() && layoutObject.hasLayer())
                m_paintOffset += layoutObject.layer()->offsetForInFlowPosition();
        }

        m_clipped = !fixed && next.m_clipped;
        if (m_clipped)
            m_clipRect = next.m_clipRect;
    }

    if (m_cachedOffsetsEnabled && layoutObject.isSVGRoot()) {
        const LayoutSVGRoot& svgRoot = toLayoutSVGRoot(layoutObject);
        m_svgTransform = AffineTransform(svgRoot.localToBorderBoxTransform());
        if (svgRoot.shouldApplyViewportClip())
            addClipRectRelativeToPaintOffset(LayoutSize(svgRoot.pixelSnappedSize()));
    }

    applyClipIfNeeded(layoutObject);

    // FIXME: <http://bugs.webkit.org/show_bug.cgi?id=13443> Apply control clip if present.
}
开发者ID:astojilj,项目名称:chromium-crosswalk,代码行数:59,代码来源:PaintInvalidationState.cpp


注:本文中的LayoutBoxModelObject::container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。