80 lines
3.3 KiB
C++
80 lines
3.3 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
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* Copyright (C) 2018-2019 Apple Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "FloatRect.h"
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#include "QualifiedName.h"
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#include "SVGAnimatedPropertyImpl.h"
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#include "SVGNames.h"
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#include "SVGPreserveAspectRatio.h"
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#include "SVGPropertyOwnerRegistry.h"
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namespace WebCore {
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class AffineTransform;
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class SVGFitToViewBox {
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WTF_MAKE_NONCOPYABLE(SVGFitToViewBox);
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public:
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static AffineTransform viewBoxToViewTransform(const FloatRect& viewBoxRect, const SVGPreserveAspectRatioValue&, float viewWidth, float viewHeight);
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using PropertyRegistry = SVGPropertyOwnerRegistry<SVGFitToViewBox>;
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const FloatRect& viewBox() const { return m_viewBox->currentValue(); }
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const SVGPreserveAspectRatioValue& preserveAspectRatio() const { return m_preserveAspectRatio->currentValue(); }
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SVGAnimatedRect& viewBoxAnimated() { return m_viewBox; }
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SVGAnimatedPreserveAspectRatio& preserveAspectRatioAnimated() { return m_preserveAspectRatio; }
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void setViewBox(const FloatRect&);
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void resetViewBox();
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void setPreserveAspectRatio(const SVGPreserveAspectRatioValue& preserveAspectRatio) { m_preserveAspectRatio->setBaseValInternal(preserveAspectRatio); }
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void resetPreserveAspectRatio() { m_preserveAspectRatio->setBaseValInternal({ }); }
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String viewBoxString() const { return SVGPropertyTraits<FloatRect>::toString(viewBox()); }
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String preserveAspectRatioString() const { return preserveAspectRatio().valueAsString(); }
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bool hasValidViewBox() const { return m_isViewBoxValid; }
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bool hasEmptyViewBox() const { return m_isViewBoxValid && viewBox().isEmpty(); }
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protected:
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SVGFitToViewBox(SVGElement* contextElement, SVGPropertyAccess = SVGPropertyAccess::ReadWrite);
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static bool isKnownAttribute(const QualifiedName& attributeName) { return PropertyRegistry::isKnownAttribute(attributeName); }
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void reset();
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bool parseAttribute(const QualifiedName&, const AtomString&);
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std::optional<FloatRect> parseViewBox(StringView);
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std::optional<FloatRect> parseViewBox(StringParsingBuffer<LChar>&, bool validate = true);
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std::optional<FloatRect> parseViewBox(StringParsingBuffer<UChar>&, bool validate = true);
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private:
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template<typename CharacterType> std::optional<FloatRect> parseViewBoxGeneric(StringParsingBuffer<CharacterType>&, bool validate = true);
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Ref<SVGAnimatedRect> m_viewBox;
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Ref<SVGAnimatedPreserveAspectRatio> m_preserveAspectRatio;
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bool m_isViewBoxValid { false };
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};
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} // namespace WebCore
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