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      1 /*
      2  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  */
     19 
     20 #ifndef SVGTextLayoutAttributes_h
     21 #define SVGTextLayoutAttributes_h
     22 
     23 #if ENABLE(SVG)
     24 #include "SVGTextMetrics.h"
     25 #include <wtf/Vector.h>
     26 #include <wtf/text/WTFString.h>
     27 
     28 namespace WebCore {
     29 
     30 class RenderSVGInlineText;
     31 
     32 class SVGTextLayoutAttributes {
     33 public:
     34     struct PositioningLists {
     35         void fillWithEmptyValues(unsigned length);
     36         void appendEmptyValues();
     37         void appendValuesFromPosition(const PositioningLists&, unsigned position);
     38 
     39         Vector<float> xValues;
     40         Vector<float> yValues;
     41         Vector<float> dxValues;
     42         Vector<float> dyValues;
     43         Vector<float> rotateValues;
     44     };
     45 
     46     SVGTextLayoutAttributes(RenderSVGInlineText* context = 0);
     47 
     48     void reserveCapacity(unsigned length);
     49     void dump() const;
     50 
     51     static float emptyValue();
     52 
     53     RenderSVGInlineText* context() const { return m_context; }
     54 
     55     PositioningLists& positioningLists() { return m_positioningLists; }
     56     const PositioningLists& positioningLists() const { return m_positioningLists; }
     57 
     58     Vector<float>& xValues() { return m_positioningLists.xValues; }
     59     const Vector<float>& xValues() const { return m_positioningLists.xValues; }
     60 
     61     Vector<float>& yValues() { return m_positioningLists.yValues; }
     62     const Vector<float>& yValues() const { return m_positioningLists.yValues; }
     63 
     64     Vector<float>& dxValues() { return m_positioningLists.dxValues; }
     65     const Vector<float>& dxValues() const { return m_positioningLists.dxValues; }
     66 
     67     Vector<float>& dyValues() { return m_positioningLists.dyValues; }
     68     const Vector<float>& dyValues() const { return m_positioningLists.dyValues; }
     69 
     70     Vector<float>& rotateValues() { return m_positioningLists.rotateValues; }
     71     const Vector<float>& rotateValues() const { return m_positioningLists.rotateValues; }
     72 
     73     Vector<SVGTextMetrics>& textMetricsValues() { return m_textMetricsValues; }
     74     const Vector<SVGTextMetrics>& textMetricsValues() const { return m_textMetricsValues; }
     75 
     76 private:
     77     RenderSVGInlineText* m_context;
     78     PositioningLists m_positioningLists;
     79     Vector<SVGTextMetrics> m_textMetricsValues;
     80 };
     81 
     82 } // namespace WebCore
     83 
     84 #endif // ENABLE(SVG)
     85 #endif
     86