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https://github.com/RGBCube/serenity
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a37c29e353
This patch adds HTMLCanvasElement along with a LayoutCanvas object.
The DOM and layout parts are very similar to <img> elements.
The <canvas> element holds a Gfx::Bitmap which is sized according to
the "width" and "height" attributes on the element.
Calling .getContext("2d") on a <canvas> element gives you a context
object that draws into the underlying Gfx::Bitmap of the <canvas>.
The context weakly points to the <canvas> which allows it to outlive
the canvas element if needed.
This is really quite cool. :^)
38 lines
932 B
C++
38 lines
932 B
C++
#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 fill_rect(int x, int y, int width, int height);
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private:
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explicit CanvasRenderingContext2D(HTMLCanvasElement&);
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OwnPtr<Gfx::Painter> painter();
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WeakPtr<HTMLCanvasElement> m_element;
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Gfx::Color m_fill_style;
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};
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}
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