mirror of
https://github.com/darlinghq/darling-WebCore.git
synced 2024-11-23 04:19:40 +00:00
113 lines
4.1 KiB
C++
113 lines
4.1 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
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* Copyright (C) 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 "ExceptionOr.h"
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#include "SVGParsingError.h"
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#include "SVGPropertyTraits.h"
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namespace WebCore {
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class CSSPrimitiveValue;
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class SVGLengthContext;
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enum class SVGLengthType : uint8_t {
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Unknown = 0,
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Number,
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Percentage,
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Ems,
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Exs,
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Pixels,
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Centimeters,
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Millimeters,
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Inches,
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Points,
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Picas
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};
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enum class SVGLengthMode : uint8_t {
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Width,
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Height,
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Other
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};
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enum class SVGLengthNegativeValuesMode : uint8_t {
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Allow,
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Forbid
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};
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class SVGLengthValue {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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SVGLengthValue(SVGLengthMode = SVGLengthMode::Other, const String& valueAsString = { });
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SVGLengthValue(float valueInSpecifiedUnits, SVGLengthType, SVGLengthMode = SVGLengthMode::Other);
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SVGLengthValue(const SVGLengthContext&, float, SVGLengthType = SVGLengthType::Number, SVGLengthMode = SVGLengthMode::Other);
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static Optional<SVGLengthValue> construct(SVGLengthMode, StringView);
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static SVGLengthValue construct(SVGLengthMode, StringView, SVGParsingError&, SVGLengthNegativeValuesMode = SVGLengthNegativeValuesMode::Allow);
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static SVGLengthValue blend(const SVGLengthValue& from, const SVGLengthValue& to, float progress);
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static SVGLengthValue fromCSSPrimitiveValue(const CSSPrimitiveValue&);
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static Ref<CSSPrimitiveValue> toCSSPrimitiveValue(const SVGLengthValue&);
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SVGLengthType lengthType() const { return m_lengthType; }
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SVGLengthMode lengthMode() const { return m_lengthMode; }
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bool isZero() const { return !m_valueInSpecifiedUnits; }
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bool isRelative() const { return m_lengthType == SVGLengthType::Percentage || m_lengthType == SVGLengthType::Ems || m_lengthType == SVGLengthType::Exs; }
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float value(const SVGLengthContext&) const;
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float valueAsPercentage() const { return m_lengthType == SVGLengthType::Percentage ? m_valueInSpecifiedUnits / 100 : m_valueInSpecifiedUnits; }
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float valueInSpecifiedUnits() const { return m_valueInSpecifiedUnits; }
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String valueAsString() const;
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ExceptionOr<float> valueForBindings(const SVGLengthContext&) const;
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void setValueInSpecifiedUnits(float value) { m_valueInSpecifiedUnits = value; }
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ExceptionOr<void> setValue(const SVGLengthContext&, float);
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ExceptionOr<void> setValue(const SVGLengthContext&, float, SVGLengthType, SVGLengthMode);
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ExceptionOr<void> setValueAsString(StringView);
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ExceptionOr<void> setValueAsString(StringView, SVGLengthMode);
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ExceptionOr<void> convertToSpecifiedUnits(const SVGLengthContext&, SVGLengthType);
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private:
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float m_valueInSpecifiedUnits { 0 };
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SVGLengthType m_lengthType { SVGLengthType::Number };
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SVGLengthMode m_lengthMode { SVGLengthMode::Other };
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};
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inline bool operator==(const SVGLengthValue& a, const SVGLengthValue& b)
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{
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return a.valueInSpecifiedUnits() == b.valueInSpecifiedUnits() && a.lengthType() == b.lengthType() && a.lengthMode() == b.lengthMode();
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}
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inline bool operator!=(const SVGLengthValue& a, const SVGLengthValue& b)
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{
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return a.valueInSpecifiedUnits() != b.valueInSpecifiedUnits() || a.lengthType() != b.lengthType() || a.lengthMode() != b.lengthMode();
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}
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WTF::TextStream& operator<<(WTF::TextStream&, const SVGLengthValue&);
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} // namespace WebCore
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