khtml/svg/SVGLocatable.h

   1 /*
   2     Copyright (C) 2004, 2005 Nikolas Zimmermann <wildfox@kde.org>
   3                   2004, 2005, 2007 Rob Buis <buis@kde.org>
   4
   5     This file is part of the KDE project
   6
   7     This library is free software; you can redistribute it and/or
   8     modify it under the terms of the GNU Library General Public
   9     License as published by the Free Software Foundation; either
  10     version 2 of the License, or (at your option) any later version.
  11
  12     This library is distributed in the hope that it will be useful,
  13     but WITHOUT ANY WARRANTY; without even the implied warranty of
  14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15     Library General Public License for more details.
  16
  17     You should have received a copy of the GNU Library General Public License
  18     along with this library; see the file COPYING.LIB.  If not, write to
  19     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20     Boston, MA 02110-1301, USA.
  21 */
  22
  23 #ifndef SVGLocatable_h
  24 #define SVGLocatable_h
  25
  26 #if ENABLE(SVG)
  27
  28 #include "ExceptionCode.h"
  29 #include "Document.h"
  30
  31 namespace WebCore {
  32
  33     class AffineTransform;
  34     class FloatRect;
  35     class SVGElement;
  36     class SVGStyledElement;
  37
  38     class SVGLocatable {
  39     public:
  40         SVGLocatable();
  41         virtual ~SVGLocatable();
  42
  43         // 'SVGLocatable' functions
  44         virtual SVGElement* nearestViewportElement() const = 0;
  45         virtual SVGElement* farthestViewportElement() const = 0;
  46
  47         virtual FloatRect getBBox() const = 0;
  48         virtual AffineTransform getCTM() const = 0;
  49         virtual AffineTransform getScreenCTM() const = 0;
  50         AffineTransform getTransformToElement(SVGElement*, ExceptionCode&) const;
  51
  52         static SVGElement* nearestViewportElement(const SVGStyledElement*);
  53         static SVGElement* farthestViewportElement(const SVGStyledElement*);
  54
  55     protected:
  56         static FloatRect getBBox(const SVGStyledElement*);
  57         static AffineTransform getCTM(const SVGElement*);
  58         static AffineTransform getScreenCTM(const SVGElement*);
  59     };
  60
  61 } // namespace WebCore
  62
  63 #endif // ENABLE(SVG)
  64 #endif // SVGLocatable_h
  65
  66 // vim:ts=4:noet