134 lines
4.5 KiB
C++
134 lines
4.5 KiB
C++
/*
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CSSValueKeywords.h"
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#include "FontSelectionAlgorithm.h"
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namespace WebCore {
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inline bool isCSS21Weight(FontSelectionValue weight)
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{
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return weight == FontSelectionValue(100)
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|| weight == FontSelectionValue(200)
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|| weight == FontSelectionValue(300)
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|| weight == FontSelectionValue(400)
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|| weight == FontSelectionValue(500)
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|| weight == FontSelectionValue(600)
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|| weight == FontSelectionValue(700)
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|| weight == FontSelectionValue(800)
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|| weight == FontSelectionValue(900);
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}
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inline bool isCSS21Weight(int weight)
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{
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return !((weight % 100) || weight < 100 || weight > 900);
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}
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inline std::optional<CSSValueID> fontWeightKeyword(FontSelectionValue weight)
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{
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if (weight == normalWeightValue())
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return CSSValueNormal;
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if (weight == boldWeightValue())
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return CSSValueBold;
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return std::nullopt;
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}
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inline std::optional<FontSelectionValue> fontWeightValue(CSSValueID value)
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{
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switch (value) {
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case CSSValueNormal:
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return normalWeightValue();
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case CSSValueBold:
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case CSSValueBolder:
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return boldWeightValue();
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case CSSValueLighter:
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return lightWeightValue();
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default:
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return std::nullopt;
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}
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}
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inline std::optional<CSSValueID> fontStretchKeyword(FontSelectionValue stretch)
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{
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if (stretch == ultraCondensedStretchValue())
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return CSSValueUltraCondensed;
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if (stretch == extraCondensedStretchValue())
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return CSSValueExtraCondensed;
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if (stretch == condensedStretchValue())
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return CSSValueCondensed;
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if (stretch == semiCondensedStretchValue())
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return CSSValueSemiCondensed;
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if (stretch == normalStretchValue())
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return CSSValueNormal;
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if (stretch == semiExpandedStretchValue())
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return CSSValueSemiExpanded;
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if (stretch == expandedStretchValue())
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return CSSValueExpanded;
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if (stretch == extraExpandedStretchValue())
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return CSSValueExtraExpanded;
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if (stretch == ultraExpandedStretchValue())
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return CSSValueUltraExpanded;
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return std::nullopt;
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}
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inline std::optional<FontSelectionValue> fontStretchValue(CSSValueID value)
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{
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switch (value) {
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case CSSValueUltraCondensed:
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return ultraCondensedStretchValue();
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case CSSValueExtraCondensed:
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return extraCondensedStretchValue();
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case CSSValueCondensed:
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return condensedStretchValue();
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case CSSValueSemiCondensed:
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return semiCondensedStretchValue();
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case CSSValueNormal:
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return normalStretchValue();
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case CSSValueSemiExpanded:
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return semiExpandedStretchValue();
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case CSSValueExpanded:
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return expandedStretchValue();
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case CSSValueExtraExpanded:
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return extraExpandedStretchValue();
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case CSSValueUltraExpanded:
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return ultraExpandedStretchValue();
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default:
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return std::nullopt;
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}
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}
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inline std::optional<CSSValueID> fontStyleKeyword(std::optional<FontSelectionValue> style, FontStyleAxis axis)
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{
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if (!style || style.value() == normalItalicValue())
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return CSSValueNormal;
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if (style.value() == italicValue())
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return axis == FontStyleAxis::ital ? CSSValueItalic : CSSValueOblique;
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return std::nullopt;
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}
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}
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