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/*
* Copyright (C) Research In Motion Limited 2010. All rights reserved.
*
* 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 SVGTextChunk_h
#define SVGTextChunk_h
#if ENABLE(SVG)
#include "SVGRenderStyleDefs.h"
#include "SVGTextContentElement.h"
namespace WebCore {
class SVGInlineTextBox;
// A SVGTextChunk describes a range of SVGTextFragments, see the SVG spec definition of a "text chunk".
class SVGTextChunk {
public:
SVGTextChunk(bool isVerticalText, ETextAnchor, SVGTextContentElement::SVGLengthAdjustType, float desiredTextLength);
void calculateLength(float& length, unsigned& characters) const;
float calculateTextAnchorShift(float length) const;
bool isVerticalText() const { return m_isVerticalText; }
ETextAnchor textAnchor() const { return m_textAnchor; }
SVGTextContentElement::SVGLengthAdjustType lengthAdjust() const { return m_lengthAdjust; }
float desiredTextLength() const { return m_desiredTextLength; }
Vector<SVGInlineTextBox*>& boxes() { return m_boxes; }
const Vector<SVGInlineTextBox*>& boxes() const { return m_boxes; }
bool hasDesiredTextLength() const { return m_lengthAdjust != SVGTextContentElement::LENGTHADJUST_UNKNOWN && m_desiredTextLength > 0; }
bool hasTextAnchor() const { return m_textAnchor != TA_START; }
private:
// Contains all SVGInlineTextBoxes this chunk spans.
Vector<SVGInlineTextBox*> m_boxes;
// writing-mode specific property.
bool m_isVerticalText;
// text-anchor specific properties.
ETextAnchor m_textAnchor;
// textLength/lengthAdjust specific properties.
SVGTextContentElement::SVGLengthAdjustType m_lengthAdjust;
float m_desiredTextLength;
};
} // namespace WebCore
#endif // ENABLE(SVG)
#endif
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