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serenity/Userland/Libraries/LibWeb/Painting/GradientPainting.h
2023-03-06 13:05:43 +00:00

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/*
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Span.h>
#include <AK/Vector.h>
#include <LibGfx/Color.h>
#include <LibGfx/Gradients.h>
#include <LibWeb/Forward.h>
#include <LibWeb/Painting/PaintContext.h>
namespace Web::Painting {
using ColorStopList = Vector<Gfx::ColorStop, 4>;
struct ColorStopData {
ColorStopList list;
Optional<float> repeat_length;
};
struct LinearGradientData {
float gradient_angle;
ColorStopData color_stops;
};
struct ConicGradientData {
float start_angle;
ColorStopData color_stops;
};
struct RadialGradientData {
ColorStopData color_stops;
};
LinearGradientData resolve_linear_gradient_data(Layout::Node const&, CSSPixelSize, CSS::LinearGradientStyleValue const&);
ConicGradientData resolve_conic_gradient_data(Layout::Node const&, CSS::ConicGradientStyleValue const&);
RadialGradientData resolve_radial_gradient_data(Layout::Node const&, CSSPixelSize, CSS::RadialGradientStyleValue const&);
void paint_linear_gradient(PaintContext&, DevicePixelRect const&, LinearGradientData const&);
void paint_conic_gradient(PaintContext&, DevicePixelRect const&, ConicGradientData const&, DevicePixelPoint position);
void paint_radial_gradient(PaintContext&, DevicePixelRect const&, RadialGradientData const&, DevicePixelPoint position, DevicePixelSize size);
}