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LibWeb: Split ConicGradientStyleValue out of StyleValue.{h,cpp}

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Sam Atkins 2023-03-24 16:09:41 +00:00 • committed by Linus Groh
parent 35b240c87d
commit f30b042890
7 changed files with 158 additions and 102 deletions
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85
Userland/Libraries/LibWeb/CSS/StyleValues/ConicGradientStyleValue.cpp Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "ConicGradientStyleValue.h"
#include <LibWeb/CSS/Serialize.h>
namespace Web::CSS {
// FIXME: Temporary until AbstractImageStyleValue.h exists. (And the Serialize.h include above.)
static ErrorOr<void> serialize_color_stop_list(StringBuilder& builder, auto const& color_stop_list)
{
bool first = true;
for (auto const& element : color_stop_list) {
if (!first)
TRY(builder.try_append(", "sv));
if (element.transition_hint.has_value())
TRY(builder.try_appendff("{}, "sv, TRY(element.transition_hint->value.to_string())));
TRY(serialize_a_srgb_value(builder, element.color_stop.color));
for (auto position : Array { &element.color_stop.position, &element.color_stop.second_position }) {
if (position->has_value())
TRY(builder.try_appendff(" {}"sv, TRY((*position)->to_string())));
}
first = false;
}
return {};
}
ErrorOr<String> ConicGradientStyleValue::to_string() const
{
StringBuilder builder;
if (is_repeating())
TRY(builder.try_append("repeating-"sv));
TRY(builder.try_append("conic-gradient("sv));
bool has_from_angle = false;
bool has_at_position = false;
if ((has_from_angle = m_properties.from_angle.to_degrees() != 0))
TRY(builder.try_appendff("from {}", TRY(m_properties.from_angle.to_string())));
if ((has_at_position = m_properties.position != PositionValue::center())) {
if (has_from_angle)
TRY(builder.try_append(' '));
TRY(builder.try_appendff("at "sv));
TRY(m_properties.position.serialize(builder));
}
if (has_from_angle || has_at_position)
TRY(builder.try_append(", "sv));
TRY(serialize_color_stop_list(builder, m_properties.color_stop_list));
TRY(builder.try_append(')'));
return builder.to_string();
}
void ConicGradientStyleValue::resolve_for_size(Layout::Node const& node, CSSPixelSize size) const
{
if (!m_resolved.has_value())
m_resolved = ResolvedData { Painting::resolve_conic_gradient_data(node, *this), {} };
m_resolved->position = m_properties.position.resolved(node, CSSPixelRect { { 0, 0 }, size });
}
void ConicGradientStyleValue::paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering) const
{
VERIFY(m_resolved.has_value());
Painting::paint_conic_gradient(context, dest_rect, m_resolved->data, context.rounded_device_point(m_resolved->position));
}
bool ConicGradientStyleValue::equals(StyleValue const& other) const
{
if (type() != other.type())
return false;
auto& other_gradient = other.as_conic_gradient();
return m_properties == other_gradient.m_properties;
}
float ConicGradientStyleValue::angle_degrees() const
{
return m_properties.from_angle.to_degrees();
}
}