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/*
* Copyright (C) 2007 Rob Buis <buis@kde.org>
* (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifndef SVGInlineTextBox_h
#define SVGInlineTextBox_h
#if ENABLE(SVG)
#include "InlineTextBox.h"
namespace WebCore {
class SVGRootInlineBox;
struct SVGChar;
struct SVGTextDecorationInfo;
enum SVGTextPaintSubphase {
SVGTextPaintSubphaseBackground,
SVGTextPaintSubphaseGlyphFill,
SVGTextPaintSubphaseGlyphFillSelection,
SVGTextPaintSubphaseGlyphStroke,
SVGTextPaintSubphaseGlyphStrokeSelection,
SVGTextPaintSubphaseForeground
};
struct SVGTextPaintInfo {
SVGTextPaintInfo() : activePaintServer(0), subphase(SVGTextPaintSubphaseBackground) {}
SVGPaintServer* activePaintServer;
SVGTextPaintSubphase subphase;
};
class SVGInlineTextBox : public InlineTextBox {
public:
SVGInlineTextBox(RenderObject* obj);
virtual int virtualHeight() const { return m_height; }
void setHeight(int h) { m_height = h; }
virtual int selectionTop();
virtual int selectionHeight();
virtual int offsetForPosition(int x, bool includePartialGlyphs = true) const;
virtual int positionForOffset(int offset) const;
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty);
virtual IntRect selectionRect(int absx, int absy, int startPos, int endPos);
// SVGs custom paint text method
void paintCharacters(RenderObject::PaintInfo&, int tx, int ty, const SVGChar&, const UChar* chars, int length, SVGTextPaintInfo&);
// SVGs custom paint selection method
void paintSelection(int boxStartOffset, const SVGChar&, const UChar*, int length, GraphicsContext*, RenderStyle*, const Font&);
// SVGs custom paint decoration method
void paintDecoration(ETextDecoration, GraphicsContext*, int tx, int ty, int width, const SVGChar&, const SVGTextDecorationInfo&);
SVGRootInlineBox* svgRootInlineBox() const;
// Helper functions shared with SVGRootInlineBox
float calculateGlyphWidth(RenderStyle* style, int offset, int extraCharsAvailable, int& charsConsumed, String& glyphName) const;
float calculateGlyphHeight(RenderStyle*, int offset, int extraCharsAvailable) const;
FloatRect calculateGlyphBoundaries(RenderStyle*, int offset, const SVGChar&) const;
SVGChar* closestCharacterToPosition(int x, int y, int& offset) const;
private:
friend class RenderSVGInlineText;
bool svgCharacterHitsPosition(int x, int y, int& offset) const;
bool chunkSelectionStartEnd(const UChar* chunk, int chunkLength, int& selectionStart, int& selectionEnd);
int m_height;
};
} // namespace WebCore
#endif
#endif // SVGInlineTextBox_h
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