khtml/svg/SVGPreserveAspectRatio.h

   1 /*
   2     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
   3                   2004, 2005, 2006, 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 SVGPreserveAspectRatio_h
  24 #define SVGPreserveAspectRatio_h
  25
  26 #if ENABLE(SVG)
  27 #include "PlatformString.h"
  28 #include "SVGNames.h"
  29 #include "Document.h"
  30
  31 #include <wtf/RefCounted.h>
  32
  33 //khtml
  34 #include <wtf/PassRefPtr.h>
  35
  36 namespace WebCore {
  37
  38     //class String;
  39     class AffineTransform;
  40     class SVGStyledElement;
  41
  42     class SVGPreserveAspectRatio : public RefCounted<SVGPreserveAspectRatio> {
  43     public:
  44         static PassRefPtr<SVGPreserveAspectRatio> create() { return adoptRef(new SVGPreserveAspectRatio); }
  45
  46         enum SVGPreserveAspectRatioType {
  47             SVG_PRESERVEASPECTRATIO_UNKNOWN     = 0,
  48             SVG_PRESERVEASPECTRATIO_NONE        = 1,
  49             SVG_PRESERVEASPECTRATIO_XMINYMIN    = 2,
  50             SVG_PRESERVEASPECTRATIO_XMIDYMIN    = 3,
  51             SVG_PRESERVEASPECTRATIO_XMAXYMIN    = 4,
  52             SVG_PRESERVEASPECTRATIO_XMINYMID    = 5,
  53             SVG_PRESERVEASPECTRATIO_XMIDYMID    = 6,
  54             SVG_PRESERVEASPECTRATIO_XMAXYMID    = 7,
  55             SVG_PRESERVEASPECTRATIO_XMINYMAX    = 8,
  56             SVG_PRESERVEASPECTRATIO_XMIDYMAX    = 9,
  57             SVG_PRESERVEASPECTRATIO_XMAXYMAX    = 10
  58         };
  59
  60         enum SVGMeetOrSliceType {
  61             SVG_MEETORSLICE_UNKNOWN    = 0,
  62             SVG_MEETORSLICE_MEET       = 1,
  63             SVG_MEETORSLICE_SLICE      = 2
  64         };
  65
  66         virtual ~SVGPreserveAspectRatio();
  67
  68         void setAlign(unsigned short);
  69         unsigned short align() const;
  70
  71         void setMeetOrSlice(unsigned short);
  72         unsigned short meetOrSlice() const;
  73
  74         AffineTransform getCTM(double logicX, double logicY,
  75                                double logicWidth, double logicHeight,
  76                                double physX, double physY,
  77                                double physWidth, double physHeight);
  78
  79         // Helper
  80         bool parsePreserveAspectRatio(const UChar*& currParam, const UChar* end, bool validate = true);
  81
  82         const QualifiedName& associatedAttributeName() const { return SVGNames::preserveAspectRatioAttr; }
  83
  84     private:
  85         SVGPreserveAspectRatio();
  86
  87         unsigned short m_align;
  88         unsigned short m_meetOrSlice;
  89     };
  90
  91 } // namespace WebCore
  92
  93 #endif // ENABLE(SVG)
  94 #endif // SVGPreserveAspectRatio_h
  95