67d68eac64
Before this change, "background-clip: text" was implemented by saving a Vector<Gfx::Path> of all glyphs needed to paint a mask for the background. The issue with this approach was that once glyphs were extracted into vector paths, the glyph rasterization cache could no longer be utilized. With this change, all text required for mask painting is saved in a nested display list and rasterized as a regular text.
71 lines
2.6 KiB
C++
71 lines
2.6 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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#pragma once
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#include <LibWeb/CSS/Angle.h>
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#include <LibWeb/CSS/StyleValues/AbstractImageStyleValue.h>
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#include <LibWeb/Painting/GradientPainting.h>
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namespace Web::CSS {
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class ConicGradientStyleValue final : public AbstractImageStyleValue {
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public:
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static ValueComparingNonnullRefPtr<ConicGradientStyleValue> create(Angle from_angle, ValueComparingNonnullRefPtr<PositionStyleValue> position, Vector<AngularColorStopListElement> color_stop_list, GradientRepeating repeating)
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{
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VERIFY(color_stop_list.size() >= 2);
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return adopt_ref(*new (nothrow) ConicGradientStyleValue(from_angle, move(position), move(color_stop_list), repeating));
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}
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virtual String to_string() const override;
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void paint(PaintContext&, DevicePixelRect const& dest_rect, CSS::ImageRendering, RefPtr<Painting::DisplayList> text_clip = {}) const override;
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virtual bool equals(StyleValue const& other) const override;
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Vector<AngularColorStopListElement> const& color_stop_list() const
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{
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return m_properties.color_stop_list;
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}
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float angle_degrees() const;
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bool is_paintable() const override { return true; }
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void resolve_for_size(Layout::NodeWithStyleAndBoxModelMetrics const&, CSSPixelSize) const override;
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virtual ~ConicGradientStyleValue() override = default;
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bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
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private:
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ConicGradientStyleValue(Angle from_angle, ValueComparingNonnullRefPtr<PositionStyleValue> position, Vector<AngularColorStopListElement> color_stop_list, GradientRepeating repeating)
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: AbstractImageStyleValue(Type::ConicGradient)
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, m_properties { .from_angle = from_angle, .position = move(position), .color_stop_list = move(color_stop_list), .repeating = repeating }
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{
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}
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struct Properties {
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// FIXME: Support <color-interpolation-method>
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Angle from_angle;
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ValueComparingNonnullRefPtr<PositionStyleValue> position;
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Vector<AngularColorStopListElement> color_stop_list;
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GradientRepeating repeating;
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bool operator==(Properties const&) const = default;
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} m_properties;
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struct ResolvedData {
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Painting::ConicGradientData data;
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CSSPixelPoint position;
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};
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mutable Optional<ResolvedData> m_resolved;
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};
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}
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