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      1 /*
      2  * Copyright (C) Research In Motion Limited 2010-2011. 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 #include "core/rendering/svg/SVGTextMetrics.h"
     24 #include "wtf/HashMap.h"
     25 #include "wtf/Noncopyable.h"
     26 #include "wtf/Vector.h"
     27 #include "wtf/text/WTFString.h"
     28 
     29 namespace blink {
     30 
     31 class RenderSVGInlineText;
     32 
     33 struct SVGCharacterData {
     34     SVGCharacterData();
     35 
     36     float x;
     37     float y;
     38     float dx;
     39     float dy;
     40     float rotate;
     41 };
     42 
     43 typedef HashMap<unsigned, SVGCharacterData> SVGCharacterDataMap;
     44 
     45 class SVGTextLayoutAttributes {
     46     WTF_MAKE_NONCOPYABLE(SVGTextLayoutAttributes);
     47 public:
     48     SVGTextLayoutAttributes(RenderSVGInlineText*);
     49 
     50     void clear();
     51     void dump() const;
     52     static float emptyValue();
     53 
     54     RenderSVGInlineText* context() const { return m_context; }
     55 
     56     SVGCharacterDataMap& characterDataMap() { return m_characterDataMap; }
     57     const SVGCharacterDataMap& characterDataMap() const { return m_characterDataMap; }
     58 
     59     Vector<SVGTextMetrics>& textMetricsValues() { return m_textMetricsValues; }
     60     const Vector<SVGTextMetrics>& textMetricsValues() const { return m_textMetricsValues; }
     61 
     62 private:
     63     RenderSVGInlineText* m_context;
     64     SVGCharacterDataMap m_characterDataMap;
     65     Vector<SVGTextMetrics> m_textMetricsValues;
     66 };
     67 
     68 inline SVGCharacterData::SVGCharacterData()
     69     : x(SVGTextLayoutAttributes::emptyValue())
     70     , y(SVGTextLayoutAttributes::emptyValue())
     71     , dx(SVGTextLayoutAttributes::emptyValue())
     72     , dy(SVGTextLayoutAttributes::emptyValue())
     73     , rotate(SVGTextLayoutAttributes::emptyValue())
     74 {
     75 }
     76 
     77 } // namespace blink
     78 
     79 #endif
     80