WebCore/svg/SVGFontData.h

   1 /*
   2  * Copyright (C) 2008 Nikolas Zimmermann <zimmermann@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