C++ (Cpp) RenderBox::flipForWritingModeの例

コード例 #1

// FIXME: This should take a RenderBoxModelObject&.
bool RenderLineBoxList::rangeIntersectsRect(RenderBoxModelObject* renderer, LayoutUnit logicalTop, LayoutUnit logicalBottom, const LayoutRect& rect, const LayoutPoint& offset) const
{
    LayoutUnit physicalStart = logicalTop;
    LayoutUnit physicalEnd = logicalBottom;
    if (renderer->view().frameView().hasFlippedBlockRenderers()) {
        RenderBox* block;
        if (is<RenderBox>(*renderer))
            block = downcast<RenderBox>(renderer);
        else
            block = renderer->containingBlock();
        physicalStart = block->flipForWritingMode(logicalTop);
        physicalEnd = block->flipForWritingMode(logicalBottom);
    }

    LayoutUnit physicalExtent = absoluteValue(physicalEnd - physicalStart);
    physicalStart = std::min(physicalStart, physicalEnd);
    
    if (renderer->style().isHorizontalWritingMode()) {
        physicalStart += offset.y();
        if (physicalStart >= rect.maxY() || physicalStart + physicalExtent <= rect.y())
            return false;
    } else {
        physicalStart += offset.x();
        if (physicalStart >= rect.maxX() || physicalStart + physicalExtent <= rect.x())
            return false;
    }
    
    return true;
}

コード例 #2

ファイル: RenderLineBoxList.cpp プロジェクト: Drakey83/steamlink-sdk

bool RenderLineBoxList::rangeIntersectsRect(RenderBoxModelObject* renderer, LayoutUnit logicalTop, LayoutUnit logicalBottom, const LayoutRect& rect, const LayoutPoint& offset) const
{
    RenderBox* block;
    if (renderer->isBox())
        block = toRenderBox(renderer);
    else
        block = renderer->containingBlock();
    LayoutUnit physicalStart = block->flipForWritingMode(logicalTop);
    LayoutUnit physicalEnd = block->flipForWritingMode(logicalBottom);
    LayoutUnit physicalExtent = absoluteValue(physicalEnd - physicalStart);
    physicalStart = min(physicalStart, physicalEnd);

    if (renderer->style()->isHorizontalWritingMode()) {
        physicalStart += offset.y();
        if (physicalStart >= rect.maxY() || physicalStart + physicalExtent <= rect.y())
            return false;
    } else {
        physicalStart += offset.x();
        if (physicalStart >= rect.maxX() || physicalStart + physicalExtent <= rect.x())
            return false;
    }

    return true;
}