mirror of
https://github.com/RGBCube/serenity
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469491906f
This implements support for painting linear-gradients in a spec correct way :^). Right now it supports: - Multi-stop gradients - Color stop fixups - Using pre-multiplied alpha mixing when required - Painting gradients at arbitrary angles It still needs to support: - Transition hints - Double position color stops However what is implemented now seems to be accurate to other browsers, and covers the most common use cases.
34 lines
750 B
C++
34 lines
750 B
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/CSS/StyleValue.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 = 0;
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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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};
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LinearGradientData resolve_linear_gradient_data(Layout::Node const&, Gfx::FloatRect const&, CSS::LinearGradientStyleValue const&);
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void paint_linear_gradient(PaintContext&, Gfx::IntRect const&, LinearGradientData const&);
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}
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