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ladybird/Userland/Libraries/LibWeb/CSS/StyleValue.cpp
Sam Atkins 3df3a85235 LibGfx+Userland: Move FontWeight enum into its own file 
FontDatabase.h with its includes add up to quite a lot of code. In the
next commit, compiled GML files are going to need to access the
FontWeight enum, so let's allow them to do that without pulling in lots
of other things.

Also, change users to include FontWeight.h instead of FontDatabase.h
where appropriate.
2024-01-21 09:32:10 -05:00

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