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LibWeb: Split LinearGradientStyleValue out of StyleValue.{h,cpp}

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Sam Atkins 2023-03-24 16:17:50 +00:00 • committed by Linus Groh
parent f30b042890
commit c8ffd82cb7
7 changed files with 229 additions and 172 deletions
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85
Userland/Libraries/LibWeb/CSS/StyleValues/LinearGradientStyleValue.h Normal file
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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2021-2023, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022-2023, MacDue <macdue@dueutil.tech>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Vector.h>
#include <LibWeb/CSS/StyleValue.h>
namespace Web::CSS {
// Note: The sides must be before the corners in this enum (as this order is used in parsing).
enum class SideOrCorner {
Top,
Bottom,
Left,
Right,
TopLeft,
TopRight,
BottomLeft,
BottomRight
};
class LinearGradientStyleValue final : public AbstractImageStyleValue {
public:
using GradientDirection = Variant<Angle, SideOrCorner>;
enum class GradientType {
Standard,
WebKit
};
static ValueComparingNonnullRefPtr<LinearGradientStyleValue> create(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating)
{
VERIFY(color_stop_list.size() >= 2);
return adopt_ref(*new LinearGradientStyleValue(direction, move(color_stop_list), type, repeating));
}
virtual ErrorOr<String> to_string() const override;
virtual ~LinearGradientStyleValue() override = default;
virtual bool equals(StyleValue const& other) const override;
Vector<LinearColorStopListElement> const& color_stop_list() const
{
return m_properties.color_stop_list;
}
bool is_repeating() const { return m_properties.repeating == GradientRepeating::Yes; }
float angle_degrees(CSSPixelSize gradient_size) const;
void resolve_for_size(Layout::Node const&, CSSPixelSize) const override;
bool is_paintable() const override { return true; }
void paint(PaintContext& context, DevicePixelRect const& dest_rect, CSS::ImageRendering image_rendering) const override;
private:
LinearGradientStyleValue(GradientDirection direction, Vector<LinearColorStopListElement> color_stop_list, GradientType type, GradientRepeating repeating)
: AbstractImageStyleValue(Type::LinearGradient)
, m_properties { .direction = direction, .color_stop_list = move(color_stop_list), .gradient_type = type, .repeating = repeating }
{
}
struct Properties {
GradientDirection direction;
Vector<LinearColorStopListElement> color_stop_list;
GradientType gradient_type;
GradientRepeating repeating;
bool operator==(Properties const&) const = default;
} m_properties;
struct ResolvedData {
Painting::LinearGradientData data;
CSSPixelSize size;
};
mutable Optional<ResolvedData> m_resolved;
};
}