C++ (Cpp) RootInlineBox::leftOverflow示例

void RenderListItem::positionListMarker()
{
    if (m_marker && !m_marker->isInside() && m_marker->inlineBoxWrapper()) {
        int markerOldX = m_marker->xPos();
        int yOffset = 0;
        int xOffset = 0;
        for (RenderObject* o = m_marker->parent(); o != this; o = o->parent()) {
            yOffset += o->yPos();
            xOffset += o->xPos();
        }
        
        RootInlineBox* root = m_marker->inlineBoxWrapper()->root();
        if (style()->direction() == LTR) {
            int leftLineOffset = leftRelOffset(yOffset, leftOffset(yOffset));
            int markerXPos = leftLineOffset - xOffset - paddingLeft() - borderLeft() + m_marker->marginLeft();
            m_marker->inlineBoxWrapper()->adjustPosition(markerXPos - markerOldX, 0);
            if (markerXPos < root->leftOverflow()) {
                root->setHorizontalOverflowPositions(markerXPos, root->rightOverflow());
                m_overflowLeft = min(markerXPos, m_overflowLeft);
            }
        } else {
            int rightLineOffset = rightRelOffset(yOffset, rightOffset(yOffset));
            int markerXPos = rightLineOffset - xOffset + paddingRight() + borderRight() + m_marker->marginLeft();
            m_marker->inlineBoxWrapper()->adjustPosition(markerXPos - markerOldX, 0);
            if (markerXPos + m_marker->width() > root->rightOverflow()) {
                root->setHorizontalOverflowPositions(root->leftOverflow(), markerXPos + m_marker->width());
                m_overflowWidth = max(markerXPos + m_marker->width(), m_overflowLeft);
            }
        }
    }
}

示例#2

显示文件

void RenderListItem::positionListMarker()
{
    if (m_marker && !m_marker->isInside() && m_marker->inlineBoxWrapper()) {
        int markerOldX = m_marker->xPos();
        int yOffset = 0;
        int xOffset = 0;
        for (RenderObject* o = m_marker->parent(); o != this; o = o->parent()) {
            yOffset += o->yPos();
            xOffset += o->xPos();
        }

        bool adjustOverflow = false;
        int markerXPos;
        RootInlineBox* root = m_marker->inlineBoxWrapper()->root();

        if (style()->direction() == LTR) {
            int leftLineOffset = leftRelOffset(yOffset, leftOffset(yOffset));
            markerXPos = leftLineOffset - xOffset - paddingLeft() - borderLeft() + m_marker->marginLeft();
            m_marker->inlineBoxWrapper()->adjustPosition(markerXPos - markerOldX, 0);
            if (markerXPos < root->leftOverflow()) {
                root->setHorizontalOverflowPositions(markerXPos, root->rightOverflow());
                adjustOverflow = true;
            }
        } else {
            int rightLineOffset = rightRelOffset(yOffset, rightOffset(yOffset));
            markerXPos = rightLineOffset - xOffset + paddingRight() + borderRight() + m_marker->marginLeft();
            m_marker->inlineBoxWrapper()->adjustPosition(markerXPos - markerOldX, 0);
            if (markerXPos + m_marker->width() > root->rightOverflow()) {
                root->setHorizontalOverflowPositions(root->leftOverflow(), markerXPos + m_marker->width());
                adjustOverflow = true;
            }
        }

        if (adjustOverflow) {
            IntRect markerRect(markerXPos + xOffset, yOffset, m_marker->width(), m_marker->height());
            RenderObject* o = m_marker;
            do {
                o = o->parent();
                if (o->isRenderBlock())
                    static_cast<RenderBlock*>(o)->addVisualOverflow(markerRect);
                markerRect.move(-o->xPos(), -o->yPos());
            } while (o != this);
        }
    }
}