/* * (C) 1999-2003 Lars Knoll ([email protected]) * Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved. * Copyright (C) 2007 Alexey Proskuryakov <[email protected]> * * 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 THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_PRIMITIVE_VALUE_H_ #define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_PRIMITIVE_VALUE_H_ #include <array> #include <bitset> #include "third_party/blink/renderer/core/core_export.h" #include "third_party/blink/renderer/core/css/css_value.h" #include "third_party/blink/renderer/platform/geometry/length.h" #include "third_party/blink/renderer/platform/wtf/casting.h" #include "third_party/blink/renderer/platform/wtf/forward.h" #include "third_party/blink/renderer/platform/wtf/math_extras.h" #include "third_party/blink/renderer/platform/wtf/text/string_hash.h" #include "third_party/blink/renderer/platform/wtf/text/string_view.h" namespace blink { class CSSLengthResolver; class CSSMathExpressionNode; // Dimension calculations are imprecise, often resulting in values of e.g. // 44.99998. We need to go ahead and round if we're really close to the next // integer value. template <typename T> inline T RoundForImpreciseConversion(double value) { … } template <> inline float RoundForImpreciseConversion(double value) { … } // Common interface for numeric data types, including both literals (e.g. 1, // 10px, 4%) and values involving math functions (e.g. calc(3px + 2em)). class CORE_EXPORT CSSPrimitiveValue : public CSSValue { … }; CSSLengthArray; template <> struct DowncastTraits<CSSPrimitiveValue> { … }; template <> int CSSPrimitiveValue::ComputeLength(const CSSLengthResolver&) const; template <> Length CSSPrimitiveValue::ComputeLength(const CSSLengthResolver&) const; template <> unsigned CSSPrimitiveValue::ComputeLength(const CSSLengthResolver&) const; template <> int16_t CSSPrimitiveValue::ComputeLength(const CSSLengthResolver&) const; template <> CORE_EXPORT float CSSPrimitiveValue::ComputeLength( const CSSLengthResolver&) const; template <> CORE_EXPORT double CSSPrimitiveValue::ComputeLength( const CSSLengthResolver&) const; } // namespace blink #endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_PRIMITIVE_VALUE_H_
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