#ifndef SVGTextChunk_h
#define SVGTextChunk_h
#include "SVGRenderStyleDefs.h"
#include "SVGTextContentElement.h"
namespace WebCore {
class SVGInlineTextBox;
class SVGTextChunk {
public:
enum ChunkStyle {
DefaultStyle = 1 << 0,
MiddleAnchor = 1 << 1,
EndAnchor = 1 << 2,
RightToLeftText = 1 << 3,
VerticalText = 1 << 4,
LengthAdjustSpacing = 1 << 5,
LengthAdjustSpacingAndGlyphs = 1 << 6
};
SVGTextChunk(const Vector<SVGInlineTextBox*>&, unsigned first, unsigned limit);
unsigned totalCharacters() const;
float totalLength() const;
float totalAnchorShift() const;
void layout(HashMap<SVGInlineTextBox*, AffineTransform>&) const;
private:
void processTextAnchorCorrection() const;
void buildBoxTransformations(HashMap<SVGInlineTextBox*, AffineTransform>&) const;
void processTextLengthSpacingCorrection() const;
bool isVerticalText() const { return m_chunkStyle & VerticalText; }
float desiredTextLength() const { return m_desiredTextLength; }
bool hasDesiredTextLength() const { return m_desiredTextLength > 0 && ((m_chunkStyle & LengthAdjustSpacing) || (m_chunkStyle & LengthAdjustSpacingAndGlyphs)); }
bool hasTextAnchor() const { return m_chunkStyle & RightToLeftText ? !(m_chunkStyle & EndAnchor) : (m_chunkStyle & (MiddleAnchor | EndAnchor)); }
bool hasLengthAdjustSpacing() const { return m_chunkStyle & LengthAdjustSpacing; }
bool hasLengthAdjustSpacingAndGlyphs() const { return m_chunkStyle & LengthAdjustSpacingAndGlyphs; }
bool boxSpacingAndGlyphsTransform(const SVGInlineTextBox*, AffineTransform&) const;
private:
Vector<SVGInlineTextBox*> m_boxes;
unsigned m_chunkStyle { DefaultStyle };
float m_desiredTextLength { 0 };
};
}
#endif