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/*
* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
* Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
*
* 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
#include "SVGNames.h"
#include "core/dom/QualifiedName.h"
#include "core/svg/SVGPreserveAspectRatio.h"
#include "core/svg/SVGRect.h"
#include "wtf/HashSet.h"
namespace WebCore {
class AffineTransform;
class Document;
class SVGFitToViewBox {
public:
static AffineTransform viewBoxToViewTransform(const FloatRect& viewBoxRect, const SVGPreserveAspectRatio&, float viewWidth, float viewHeight);
static bool isKnownAttribute(const QualifiedName&);
static void addSupportedAttributes(HashSet<QualifiedName>&);
template<class SVGElementTarget>
static bool parseAttribute(SVGElementTarget* target, const QualifiedName& name, const AtomicString& value)
{
ASSERT(target);
if (name == SVGNames::viewBoxAttr) {
FloatRect viewBox;
bool valueIsValid = !value.isNull() && parseViewBox(&target->document(), value, viewBox);
if (valueIsValid)
target->setViewBoxBaseValue(viewBox);
else
target->setViewBoxBaseValue(SVGRect(SVGRect::InvalidSVGRectTag()));
return true;
}
if (name == SVGNames::preserveAspectRatioAttr) {
SVGPreserveAspectRatio preserveAspectRatio;
preserveAspectRatio.parse(value);
target->setPreserveAspectRatioBaseValue(preserveAspectRatio);
return true;
}
return false;
}
static bool parseViewBox(Document*, const LChar*& start, const LChar* end, FloatRect& viewBox, bool validate = true);
static bool parseViewBox(Document*, const UChar*& start, const UChar* end, FloatRect& viewBox, bool validate = true);
private:
static bool parseViewBox(Document*, const String&, FloatRect&);
};
} // namespace WebCore
#endif // SVGFitToViewBox_h
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