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85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
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* Copyright (c) 2021-2023, Sam Atkins <atkinssj@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 "ConicGradientStyleValue.h"
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#include <LibWeb/CSS/Serialize.h>
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namespace Web::CSS {
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// FIXME: Temporary until AbstractImageStyleValue.h exists. (And the Serialize.h include above.)
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static ErrorOr<void> serialize_color_stop_list(StringBuilder& builder, auto const& color_stop_list)
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{
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bool first = true;
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for (auto const& element : color_stop_list) {
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if (!first)
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TRY(builder.try_append(", "sv));
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if (element.transition_hint.has_value())
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TRY(builder.try_appendff("{}, "sv, TRY(element.transition_hint->value.to_string())));
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TRY(serialize_a_srgb_value(builder, element.color_stop.color));
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for (auto position : Array { &element.color_stop.position, &element.color_stop.second_position }) {
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if (position->has_value())
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TRY(builder.try_appendff(" {}"sv, TRY((*position)->to_string())));
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}
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first = false;
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}
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return {};
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}
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ErrorOr<String> ConicGradientStyleValue::to_string() const
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{
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StringBuilder builder;
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if (is_repeating())
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TRY(builder.try_append("repeating-"sv));
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TRY(builder.try_append("conic-gradient("sv));
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bool has_from_angle = false;
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bool has_at_position = false;
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if ((has_from_angle = m_properties.from_angle.to_degrees() != 0))
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TRY(builder.try_appendff("from {}", TRY(m_properties.from_angle.to_string())));
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if ((has_at_position = m_properties.position != PositionValue::center())) {
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if (has_from_angle)
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TRY(builder.try_append(' '));
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TRY(builder.try_appendff("at "sv));
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TRY(m_properties.position.serialize(builder));
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}
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if (has_from_angle || has_at_position)
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TRY(builder.try_append(", "sv));
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TRY(serialize_color_stop_list(builder, m_properties.color_stop_list));
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TRY(builder.try_append(')'));
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return builder.to_string();
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}
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void ConicGradientStyleValue::resolve_for_size(Layout::Node const& node, CSSPixelSize size) const
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{
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if (!m_resolved.has_value())
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m_resolved = ResolvedData { Painting::resolve_conic_gradient_data(node, *this), {} };
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m_resolved->position = m_properties.position.resolved(node, CSSPixelRect { { 0, 0 }, size });
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}
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void ConicGradientStyleValue::paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering) const
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{
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VERIFY(m_resolved.has_value());
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Painting::paint_conic_gradient(context, dest_rect, m_resolved->data, context.rounded_device_point(m_resolved->position));
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}
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bool ConicGradientStyleValue::equals(StyleValue const& other) const
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{
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if (type() != other.type())
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return false;
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auto& other_gradient = other.as_conic_gradient();
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return m_properties == other_gradient.m_properties;
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}
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float ConicGradientStyleValue::angle_degrees() const
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{
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return m_properties.from_angle.to_degrees();
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}
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}
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