svgfittoviewbox.h

来自「linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自Web」· C头文件 代码 · 共 58 行

/*
    Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <[e-mail]>
                  2004, 2005, 2006, 2007 Rob Buis <[e-mail]>

    This file is part of the KDE project

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#ifndef SVGFitToViewBox_h
#define SVGFitToViewBox_h

#if ENABLE(SVG)
#include "SVGElement.h"
#include "SVGPreserveAspectRatio.h"

namespace WebCore {

    extern char SVGFitToViewBoxIdentifier[];

    class TransformationMatrix;

    class SVGFitToViewBox {
    public:
        SVGFitToViewBox();
        virtual ~SVGFitToViewBox();

        bool parseViewBox(const UChar*& start, const UChar* end, float& x, float& y, float& w, float& h, bool validate = true);
        virtual TransformationMatrix viewBoxToViewTransform(float viewWidth, float viewHeight) const;

        bool parseMappedAttribute(MappedAttribute*);
        bool isKnownAttribute(const QualifiedName&);

        virtual const SVGElement* contextElement() const = 0;

    private:
        ANIMATED_PROPERTY_DECLARATIONS(SVGFitToViewBox, SVGFitToViewBoxIdentifier, SVGNames::viewBoxAttrString, FloatRect, ViewBox, viewBox)
        ANIMATED_PROPERTY_DECLARATIONS(SVGFitToViewBox, SVGFitToViewBoxIdentifier, SVGNames::preserveAspectRatioAttrString, SVGPreserveAspectRatio, PreserveAspectRatio, preserveAspectRatio)
    };

} // namespace WebCore

#endif // ENABLE(SVG)
#endif // SVGFitToViewBox_h