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      1 /*
      2  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann (at) kde.org>
      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 
     21 #ifndef SVGFontData_h
     22 #define SVGFontData_h
     23 
     24 #if ENABLE(SVG_FONTS)
     25 #include "SVGFontFaceElement.h"
     26 
     27 namespace WebCore {
     28 
     29 class SVGFontData : public Noncopyable {
     30 public:
     31     SVGFontData(SVGFontFaceElement*);
     32     virtual ~SVGFontData();
     33 
     34     SVGFontFaceElement* svgFontFaceElement() const { return m_svgFontFaceElement; }
     35 
     36     float horizontalOriginX() const { return m_horizontalOriginX; }
     37     float horizontalOriginY() const { return m_horizontalOriginY; }
     38     float horizontalAdvanceX() const { return m_horizontalAdvanceX; }
     39 
     40     float verticalOriginX() const { return m_verticalOriginX; }
     41     float verticalOriginY() const { return m_verticalOriginY; }
     42     float verticalAdvanceY() const { return m_verticalAdvanceY; }
     43 
     44 private:
     45     // Ths SVGFontFaceElement is kept alive --
     46     // 1) in the external font case: by the CSSFontFaceSource, which holds a reference to the external SVG document
     47     //    containing the element;
     48     // 2) in the in-document font case: by virtue of being in the document tree and making sure that when it is removed
     49     //    from the document, it removes the @font-face rule it owns from the document's mapped element sheet and forces
     50     //    a style update.
     51     SVGFontFaceElement* m_svgFontFaceElement;
     52 
     53     float m_horizontalOriginX;
     54     float m_horizontalOriginY;
     55     float m_horizontalAdvanceX;
     56 
     57     float m_verticalOriginX;
     58     float m_verticalOriginY;
     59     float m_verticalAdvanceY;
     60 };
     61 
     62 } // namespace WebCore
     63 
     64 #endif
     65 #endif // SVGFontData_h
     66