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https://github.com/RGBCube/serenity
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4f2770a745
The transform can change between path building operations (and before the path is filled or stroked). This fixes the sun ray backgroun on the https://www.kevs3d.co.uk/dev/html5logo/ canvas demo.
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
/*
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
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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 <LibGfx/Path.h>
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#include <LibWeb/HTML/Canvas/CanvasState.h>
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#include <LibWeb/WebIDL/ExceptionOr.h>
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namespace Web::HTML {
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// https://html.spec.whatwg.org/multipage/canvas.html#canvaspath
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class CanvasPath {
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public:
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~CanvasPath() = default;
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void close_path();
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void move_to(float x, float y);
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void line_to(float x, float y);
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void quadratic_curve_to(float cx, float cy, float x, float y);
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void bezier_curve_to(double cp1x, double cp1y, double cp2x, double cp2y, double x, double y);
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void rect(float x, float y, float width, float height);
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WebIDL::ExceptionOr<void> arc(float x, float y, float radius, float start_angle, float end_angle, bool counter_clockwise);
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WebIDL::ExceptionOr<void> ellipse(float x, float y, float radius_x, float radius_y, float rotation, float start_angle, float end_angle, bool counter_clockwise);
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Gfx::Path& path() { return m_path; }
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Gfx::Path const& path() const { return m_path; }
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protected:
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explicit CanvasPath(Bindings::PlatformObject& self)
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: m_self(self)
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{
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}
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explicit CanvasPath(Bindings::PlatformObject& self, CanvasState const& canvas_state)
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: m_self(self)
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, m_canvas_state(canvas_state)
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{
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}
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private:
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Gfx::AffineTransform active_transform() const;
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JS::NonnullGCPtr<Bindings::PlatformObject> m_self;
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Optional<CanvasState const&> m_canvas_state;
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Gfx::Path m_path;
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};
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}
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