#ifndef LineLayoutState_h
#define LineLayoutState_h
#include "LayoutRect.h"
#include "RenderBox.h"
namespace WebCore {
struct FloatWithRect {
FloatWithRect(RenderBox& f)
: object(f)
, rect(LayoutRect(f.x() - f.marginLeft(), f.y() - f.marginTop(), f.width() + f.horizontalMarginExtent(), f.height() + f.verticalMarginExtent()))
, everHadLayout(f.everHadLayout())
{
}
RenderBox& object;
LayoutRect rect;
bool everHadLayout;
};
class LineLayoutState {
public:
LineLayoutState(bool fullLayout, LayoutUnit& repaintLogicalTop, LayoutUnit& repaintLogicalBottom, RenderFlowThread* flowThread)
: m_endLineLogicalTop(0)
, m_endLine(0)
, m_lastFloat(0)
, m_floatIndex(0)
, m_adjustedLogicalLineTop(0)
, m_flowThread(flowThread)
, m_repaintLogicalTop(repaintLogicalTop)
, m_repaintLogicalBottom(repaintLogicalBottom)
, m_endLineMatched(false)
, m_checkForFloatsFromLastLine(false)
, m_isFullLayout(fullLayout)
, m_usesRepaintBounds(false)
{
}
LineInfo& lineInfo() { return m_lineInfo; }
const LineInfo& lineInfo() const { return m_lineInfo; }
LayoutUnit endLineLogicalTop() const { return m_endLineLogicalTop; }
void setEndLineLogicalTop(LayoutUnit logicalTop) { m_endLineLogicalTop = logicalTop; }
RootInlineBox* endLine() const { return m_endLine; }
void setEndLine(RootInlineBox* line) { m_endLine = line; }
FloatingObject* lastFloat() const { return m_lastFloat; }
void setLastFloat(FloatingObject* lastFloat) { m_lastFloat = lastFloat; }
Vector<FloatWithRect>& floats() { return m_floats; }
unsigned floatIndex() const { return m_floatIndex; }
void setFloatIndex(unsigned floatIndex) { m_floatIndex = floatIndex; }
LayoutUnit adjustedLogicalLineTop() const { return m_adjustedLogicalLineTop; }
void setAdjustedLogicalLineTop(LayoutUnit value) { m_adjustedLogicalLineTop = value; }
RenderFlowThread* flowThread() const { return m_flowThread; }
void setFlowThread(RenderFlowThread* thread) { m_flowThread = thread; }
bool endLineMatched() const { return m_endLineMatched; }
void setEndLineMatched(bool endLineMatched) { m_endLineMatched = endLineMatched; }
bool checkForFloatsFromLastLine() const { return m_checkForFloatsFromLastLine; }
void setCheckForFloatsFromLastLine(bool check) { m_checkForFloatsFromLastLine = check; }
void markForFullLayout() { m_isFullLayout = true; }
bool isFullLayout() const { return m_isFullLayout; }
bool usesRepaintBounds() const { return m_usesRepaintBounds; }
void setRepaintRange(LayoutUnit logicalHeight)
{
m_usesRepaintBounds = true;
m_repaintLogicalTop = m_repaintLogicalBottom = logicalHeight;
}
void updateRepaintRangeFromBox(RootInlineBox* box, LayoutUnit paginationDelta = 0)
{
m_usesRepaintBounds = true;
m_repaintLogicalTop = std::min(m_repaintLogicalTop, box->logicalTopVisualOverflow() + std::min<LayoutUnit>(paginationDelta, 0));
m_repaintLogicalBottom = std::max(m_repaintLogicalBottom, box->logicalBottomVisualOverflow() + std::max<LayoutUnit>(paginationDelta, 0));
}
private:
LineInfo m_lineInfo;
LayoutUnit m_endLineLogicalTop;
RootInlineBox* m_endLine;
FloatingObject* m_lastFloat;
Vector<FloatWithRect> m_floats;
unsigned m_floatIndex;
LayoutUnit m_adjustedLogicalLineTop;
RenderFlowThread* m_flowThread;
LayoutUnit& m_repaintLogicalTop;
LayoutUnit& m_repaintLogicalBottom;
bool m_endLineMatched : 1;
bool m_checkForFloatsFromLastLine : 1;
bool m_isFullLayout : 1;
bool m_usesRepaintBounds : 1;
};
}
#endif // LineLayoutState_h