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https://github.com/RGBCube/serenity
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39855fe9ef
Add an implementation of CanvasRenderingContext2DWrapper.strokeRect(). While implementing this I fixed fillRect() and the new strokeRect() to honor the .scale() and .translate() values that had previously been plumbed. Also enhance the canvas.html demo to utilize strokeRect(), scale(), and translate().
78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/RefCounted.h>
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#include <LibGfx/Color.h>
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#include <LibGfx/Forward.h>
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#include <LibWeb/Bindings/Wrappable.h>
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namespace Web {
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class CanvasRenderingContext2D
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: public RefCounted<CanvasRenderingContext2D>
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, public Bindings::Wrappable {
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AK_MAKE_NONCOPYABLE(CanvasRenderingContext2D);
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AK_MAKE_NONMOVABLE(CanvasRenderingContext2D);
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public:
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using WrapperType = Bindings::CanvasRenderingContext2DWrapper;
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static NonnullRefPtr<CanvasRenderingContext2D> create(HTMLCanvasElement& element) { return adopt(*new CanvasRenderingContext2D(element)); }
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~CanvasRenderingContext2D();
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void set_fill_style(String);
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String fill_style() const;
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void set_stroke_style(String);
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String stroke_style() const;
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void fill_rect(int x, int y, int width, int height);
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void stroke_rect(int x, int y, int width, int height);
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void scale(double sx, double sy);
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void translate(double x, double y);
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private:
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explicit CanvasRenderingContext2D(HTMLCanvasElement&);
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Gfx::Rect compute_rect(int x, int y, int width, int height);
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void did_draw(const Gfx::Rect&);
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OwnPtr<Gfx::Painter> painter();
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WeakPtr<HTMLCanvasElement> m_element;
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double m_scale_x { 1 };
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double m_scale_y { 1 };
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double m_translate_x { 0 };
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double m_translate_y { 0 };
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Gfx::Color m_fill_style;
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Gfx::Color m_stroke_style;
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};
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}
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