91 lines
3.5 KiB
C++
91 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
|
|
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
|
|
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
|
|
* Copyright (c) 2023, MacDue <macdue@dueutil.tech>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/DeprecatedString.h>
|
|
#include <LibWeb/HTML/Canvas/CanvasState.h>
|
|
#include <LibWeb/HTML/CanvasGradient.h>
|
|
#include <LibWeb/HTML/CanvasPattern.h>
|
|
|
|
namespace Web::HTML {
|
|
|
|
// https://html.spec.whatwg.org/multipage/canvas.html#canvasfillstrokestyles
|
|
template<typename IncludingClass>
|
|
class CanvasFillStrokeStyles {
|
|
public:
|
|
~CanvasFillStrokeStyles() = default;
|
|
using FillOrStrokeStyleVariant = Variant<DeprecatedString, JS::Handle<CanvasGradient>, JS::Handle<CanvasPattern>>;
|
|
|
|
static CanvasState::FillOrStrokeStyle to_canvas_state_fill_or_stroke_style(auto const& style)
|
|
{
|
|
return style.visit(
|
|
[&](DeprecatedString const& string) -> CanvasState::FillOrStrokeStyle {
|
|
return Gfx::Color::from_string(string).value_or(Color::Black);
|
|
},
|
|
[&](auto fill_or_stroke_style) -> CanvasState::FillOrStrokeStyle {
|
|
return fill_or_stroke_style;
|
|
});
|
|
}
|
|
|
|
void set_fill_style(FillOrStrokeStyleVariant style)
|
|
{
|
|
// FIXME: 2. If the given value is a CanvasPattern object that is marked as not origin-clean, then set this's origin-clean flag to false.
|
|
my_drawing_state().fill_style = to_canvas_state_fill_or_stroke_style(style);
|
|
}
|
|
|
|
FillOrStrokeStyleVariant fill_style() const
|
|
{
|
|
return my_drawing_state().fill_style.to_js_fill_or_stroke_style();
|
|
}
|
|
|
|
void set_stroke_style(FillOrStrokeStyleVariant style)
|
|
{
|
|
// FIXME: 2. If the given value is a CanvasPattern object that is marked as not origin-clean, then set this's origin-clean flag to false.
|
|
my_drawing_state().stroke_style = to_canvas_state_fill_or_stroke_style(style);
|
|
}
|
|
|
|
FillOrStrokeStyleVariant stroke_style() const
|
|
{
|
|
return my_drawing_state().stroke_style.to_js_fill_or_stroke_style();
|
|
}
|
|
|
|
WebIDL::ExceptionOr<JS::NonnullGCPtr<CanvasGradient>> create_radial_gradient(double x0, double y0, double r0, double x1, double y1, double r1)
|
|
{
|
|
auto& realm = static_cast<IncludingClass&>(*this).realm();
|
|
return CanvasGradient::create_radial(realm, x0, y0, r0, x1, y1, r1);
|
|
}
|
|
|
|
JS::NonnullGCPtr<CanvasGradient> create_linear_gradient(double x0, double y0, double x1, double y1)
|
|
{
|
|
auto& realm = static_cast<IncludingClass&>(*this).realm();
|
|
return CanvasGradient::create_linear(realm, x0, y0, x1, y1).release_value_but_fixme_should_propagate_errors();
|
|
}
|
|
|
|
JS::NonnullGCPtr<CanvasGradient> create_conic_gradient(double start_angle, double x, double y)
|
|
{
|
|
auto& realm = static_cast<IncludingClass&>(*this).realm();
|
|
return CanvasGradient::create_conic(realm, start_angle, x, y).release_value_but_fixme_should_propagate_errors();
|
|
}
|
|
|
|
WebIDL::ExceptionOr<JS::GCPtr<CanvasPattern>> create_pattern(CanvasImageSource const& image, StringView repetition)
|
|
{
|
|
auto& realm = static_cast<IncludingClass&>(*this).realm();
|
|
return CanvasPattern::create(realm, image, repetition);
|
|
}
|
|
|
|
protected:
|
|
CanvasFillStrokeStyles() = default;
|
|
|
|
private:
|
|
CanvasState::DrawingState& my_drawing_state() { return reinterpret_cast<IncludingClass&>(*this).drawing_state(); }
|
|
CanvasState::DrawingState const& my_drawing_state() const { return reinterpret_cast<IncludingClass const&>(*this).drawing_state(); }
|
|
};
|
|
|
|
}
|