mirror of
https://github.com/LadybirdBrowser/ladybird.git
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210 lines
7.7 KiB
C++
210 lines
7.7 KiB
C++
/*
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* Copyright (c) 2018-2023, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibGfx/Font/FontStyleMapping.h>
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#include <LibGfx/Font/FontWeight.h>
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#include <LibWeb/CSS/StyleValue.h>
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#include <LibWeb/CSS/StyleValues/AbstractImageStyleValue.h>
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#include <LibWeb/CSS/StyleValues/AngleStyleValue.h>
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#include <LibWeb/CSS/StyleValues/BackgroundRepeatStyleValue.h>
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#include <LibWeb/CSS/StyleValues/BackgroundSizeStyleValue.h>
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#include <LibWeb/CSS/StyleValues/BorderRadiusStyleValue.h>
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#include <LibWeb/CSS/StyleValues/CalculatedStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ColorStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ConicGradientStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ContentStyleValue.h>
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#include <LibWeb/CSS/StyleValues/CustomIdentStyleValue.h>
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#include <LibWeb/CSS/StyleValues/DisplayStyleValue.h>
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#include <LibWeb/CSS/StyleValues/EasingStyleValue.h>
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#include <LibWeb/CSS/StyleValues/EdgeStyleValue.h>
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#include <LibWeb/CSS/StyleValues/FilterValueListStyleValue.h>
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#include <LibWeb/CSS/StyleValues/FlexStyleValue.h>
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#include <LibWeb/CSS/StyleValues/FrequencyStyleValue.h>
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#include <LibWeb/CSS/StyleValues/GridAutoFlowStyleValue.h>
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#include <LibWeb/CSS/StyleValues/GridTemplateAreaStyleValue.h>
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#include <LibWeb/CSS/StyleValues/GridTrackPlacementStyleValue.h>
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#include <LibWeb/CSS/StyleValues/GridTrackSizeListStyleValue.h>
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#include <LibWeb/CSS/StyleValues/IdentifierStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ImageStyleValue.h>
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#include <LibWeb/CSS/StyleValues/InheritStyleValue.h>
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#include <LibWeb/CSS/StyleValues/InitialStyleValue.h>
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#include <LibWeb/CSS/StyleValues/IntegerStyleValue.h>
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#include <LibWeb/CSS/StyleValues/LengthStyleValue.h>
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#include <LibWeb/CSS/StyleValues/LinearGradientStyleValue.h>
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#include <LibWeb/CSS/StyleValues/MathDepthStyleValue.h>
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#include <LibWeb/CSS/StyleValues/NumberStyleValue.h>
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#include <LibWeb/CSS/StyleValues/PercentageStyleValue.h>
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#include <LibWeb/CSS/StyleValues/PositionStyleValue.h>
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#include <LibWeb/CSS/StyleValues/RadialGradientStyleValue.h>
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#include <LibWeb/CSS/StyleValues/RatioStyleValue.h>
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#include <LibWeb/CSS/StyleValues/RectStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ResolutionStyleValue.h>
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#include <LibWeb/CSS/StyleValues/RevertStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ShadowStyleValue.h>
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#include <LibWeb/CSS/StyleValues/ShorthandStyleValue.h>
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#include <LibWeb/CSS/StyleValues/StringStyleValue.h>
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#include <LibWeb/CSS/StyleValues/StyleValueList.h>
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#include <LibWeb/CSS/StyleValues/TimeStyleValue.h>
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#include <LibWeb/CSS/StyleValues/TransformationStyleValue.h>
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#include <LibWeb/CSS/StyleValues/TransitionStyleValue.h>
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#include <LibWeb/CSS/StyleValues/URLStyleValue.h>
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#include <LibWeb/CSS/StyleValues/UnresolvedStyleValue.h>
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#include <LibWeb/CSS/StyleValues/UnsetStyleValue.h>
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namespace Web::CSS {
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StyleValue::StyleValue(Type type)
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: m_type(type)
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{
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}
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AbstractImageStyleValue const& StyleValue::as_abstract_image() const
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{
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VERIFY(is_abstract_image());
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return static_cast<AbstractImageStyleValue const&>(*this);
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}
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#define __ENUMERATE_STYLE_VALUE_TYPE(TitleCaseName, SnakeCaseName) \
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TitleCaseName##StyleValue const& StyleValue::as_##SnakeCaseName() const \
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{ \
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VERIFY(is_##SnakeCaseName()); \
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return static_cast<TitleCaseName##StyleValue const&>(*this); \
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}
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ENUMERATE_STYLE_VALUE_TYPES
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#undef __ENUMERATE_STYLE_VALUE_TYPE
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ValueComparingNonnullRefPtr<StyleValue const> StyleValue::absolutized(CSSPixelRect const&, Length::FontMetrics const&, Length::FontMetrics const&) const
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{
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return *this;
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}
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bool StyleValue::has_auto() const
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{
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return is_identifier() && as_identifier().id() == ValueID::Auto;
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}
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ValueID StyleValue::to_identifier() const
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{
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if (is_identifier())
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return as_identifier().id();
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return ValueID::Invalid;
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}
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int StyleValue::to_font_weight() const
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{
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if (is_identifier()) {
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switch (static_cast<IdentifierStyleValue const&>(*this).id()) {
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case CSS::ValueID::Normal:
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return Gfx::FontWeight::Regular;
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case CSS::ValueID::Bold:
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return Gfx::FontWeight::Bold;
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case CSS::ValueID::Lighter:
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// FIXME: This should be relative to the parent.
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return Gfx::FontWeight::Regular;
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case CSS::ValueID::Bolder:
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// FIXME: This should be relative to the parent.
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return Gfx::FontWeight::Bold;
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default:
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return Gfx::FontWeight::Regular;
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}
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}
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if (is_number()) {
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return round_to<int>(as_number().number());
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}
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if (is_calculated()) {
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auto maybe_weight = const_cast<CalculatedStyleValue&>(as_calculated()).resolve_integer();
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if (maybe_weight.has_value())
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return maybe_weight.value();
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}
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return Gfx::FontWeight::Regular;
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}
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int StyleValue::to_font_slope() const
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{
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// FIXME: Implement oblique <angle>
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if (is_identifier()) {
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switch (static_cast<IdentifierStyleValue const&>(*this).id()) {
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case CSS::ValueID::Italic: {
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static int italic_slope = Gfx::name_to_slope("Italic"sv);
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return italic_slope;
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}
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case CSS::ValueID::Oblique:
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static int oblique_slope = Gfx::name_to_slope("Oblique"sv);
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return oblique_slope;
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case CSS::ValueID::Normal:
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default:
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break;
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}
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}
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static int normal_slope = Gfx::name_to_slope("Normal"sv);
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return normal_slope;
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}
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int StyleValue::to_font_stretch_width() const
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{
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int width = Gfx::FontWidth::Normal;
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if (is_identifier()) {
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switch (static_cast<IdentifierStyleValue const&>(*this).id()) {
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case CSS::ValueID::UltraCondensed:
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width = Gfx::FontWidth::UltraCondensed;
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break;
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case CSS::ValueID::ExtraCondensed:
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width = Gfx::FontWidth::ExtraCondensed;
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break;
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case CSS::ValueID::Condensed:
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width = Gfx::FontWidth::Condensed;
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break;
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case CSS::ValueID::SemiCondensed:
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width = Gfx::FontWidth::SemiCondensed;
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break;
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case CSS::ValueID::Normal:
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width = Gfx::FontWidth::Normal;
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break;
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case CSS::ValueID::SemiExpanded:
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width = Gfx::FontWidth::SemiExpanded;
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break;
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case CSS::ValueID::Expanded:
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width = Gfx::FontWidth::Expanded;
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break;
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case CSS::ValueID::ExtraExpanded:
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width = Gfx::FontWidth::ExtraExpanded;
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break;
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case CSS::ValueID::UltraExpanded:
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width = Gfx::FontWidth::UltraExpanded;
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break;
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default:
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break;
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}
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} else if (is_percentage()) {
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float percentage = as_percentage().percentage().value();
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if (percentage <= 50) {
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width = Gfx::FontWidth::UltraCondensed;
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} else if (percentage <= 62.5f) {
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width = Gfx::FontWidth::ExtraCondensed;
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} else if (percentage <= 75.0f) {
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width = Gfx::FontWidth::Condensed;
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} else if (percentage <= 87.5f) {
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width = Gfx::FontWidth::SemiCondensed;
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} else if (percentage <= 100.0f) {
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width = Gfx::FontWidth::Normal;
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} else if (percentage <= 112.5f) {
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width = Gfx::FontWidth::SemiExpanded;
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} else if (percentage <= 125.0f) {
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width = Gfx::FontWidth::Expanded;
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} else if (percentage <= 150.0f) {
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width = Gfx::FontWidth::ExtraExpanded;
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} else {
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width = Gfx::FontWidth::UltraExpanded;
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}
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}
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return width;
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}
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}
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