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https://github.com/RGBCube/serenity
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fdcc73d4b1
This is a first pass at painting conic-gradient()s, I've yet to try to optimize this much, but I feel like you could do better than atan2 in a loop.
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, 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 <AK/Span.h>
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#include <AK/Vector.h>
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#include <LibGfx/Color.h>
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#include <LibWeb/Forward.h>
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#include <LibWeb/Painting/PaintContext.h>
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namespace Web::Painting {
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struct ColorStop {
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Gfx::Color color;
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float position = AK::NaN<float>;
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Optional<float> transition_hint = {};
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};
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using ColorStopList = Vector<ColorStop, 4>;
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struct LinearGradientData {
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float gradient_angle;
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ColorStopList color_stops;
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Optional<float> repeat_length;
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};
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struct ConicGradientData {
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float start_angle;
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ColorStopList color_stops;
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};
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LinearGradientData resolve_linear_gradient_data(Layout::Node const&, Gfx::FloatSize const&, CSS::LinearGradientStyleValue const&);
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ConicGradientData resolve_conic_gradient_data(Layout::Node const&, CSS::ConicGradientStyleValue const&);
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void paint_linear_gradient(PaintContext&, Gfx::IntRect const&, LinearGradientData const&);
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void paint_conic_gradient(PaintContext&, Gfx::IntRect const&, ConicGradientData const&, Gfx::IntPoint position);
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}
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