SVGRootInlineBox.h [plain text]
#ifndef SVGRootInlineBox_h
#define SVGRootInlineBox_h
#if ENABLE(SVG)
#include "RootInlineBox.h"
#include "SVGCharacterData.h"
#include "SVGCharacterLayoutInfo.h"
#include "SVGTextChunkLayoutInfo.h"
#include "SVGRenderSupport.h"
namespace WebCore {
class InlineTextBox;
class RenderSVGRoot;
class SVGInlineTextBox;
struct LastGlyphInfo {
LastGlyphInfo() : isValid(false) { }
String unicode;
String glyphName;
bool isValid;
};
class SVGRootInlineBox : public RootInlineBox, protected SVGRenderBase {
public:
SVGRootInlineBox(RenderObject* obj)
: RootInlineBox(obj)
, m_height(0)
{
}
virtual bool isSVGRootInlineBox() { return true; }
virtual int virtualHeight() const { return m_height; }
void setHeight(int h) { m_height = h; }
virtual void paint(RenderObject::PaintInfo&, int tx, int ty);
virtual int placeBoxesHorizontally(int x, int& leftPosition, int& rightPosition, bool& needsWordSpacing);
virtual int verticallyAlignBoxes(int heightOfBlock);
virtual void computePerCharacterLayoutInformation();
virtual FloatRect objectBoundingBox() const { return FloatRect(); }
virtual FloatRect repaintRectInLocalCoordinates() const { return FloatRect(); }
const Vector<SVGTextChunk>& svgTextChunks() const;
void walkTextChunks(SVGTextChunkWalkerBase*, const SVGInlineTextBox* textBox = 0);
private:
friend struct SVGRootInlineBoxPaintWalker;
void layoutInlineBoxes();
void layoutInlineBoxes(InlineFlowBox* start, Vector<SVGChar>::iterator& it, int& minX, int& maxX, int& minY, int& maxY);
void buildLayoutInformation(InlineFlowBox* start, SVGCharacterLayoutInfo&);
void buildLayoutInformationForTextBox(SVGCharacterLayoutInfo&, InlineTextBox*, LastGlyphInfo&);
void buildTextChunks(Vector<SVGChar>&, Vector<SVGTextChunk>&, InlineFlowBox* start);
void buildTextChunks(Vector<SVGChar>&, InlineFlowBox* start, SVGTextChunkLayoutInfo&);
void layoutTextChunks();
SVGTextDecorationInfo retrievePaintServersForTextDecoration(RenderObject* start);
private:
int m_height;
Vector<SVGChar> m_svgChars;
Vector<SVGTextChunk> m_svgTextChunks;
};
TextRun svgTextRunForInlineTextBox(const UChar*, int len, RenderStyle* style, const InlineTextBox* textBox, float xPos);
FloatPoint topLeftPositionOfCharacterRange(Vector<SVGChar>::iterator start, Vector<SVGChar>::iterator end);
float cummulatedWidthOfInlineBoxCharacterRange(SVGInlineBoxCharacterRange& range);
float cummulatedHeightOfInlineBoxCharacterRange(SVGInlineBoxCharacterRange& range);
RenderSVGRoot* findSVGRootObject(RenderObject* start);
}
#endif // ENABLE(SVG)
#endif // SVGRootInlineBox_h