81 lines
3.0 KiB
C++
81 lines
3.0 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/** A simple implementation of the b2Draw class, used to draw a Box2D world.
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To use it, simply create an instance of this class in your paint() method,
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and call its render() method.
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@tags{Box2D}
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*/
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class Box2DRenderer : public b2Draw
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{
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public:
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Box2DRenderer() noexcept;
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/** Renders the world.
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@param g the context to render into
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@param world the world to render
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@param box2DWorldLeft the left coordinate of the area of the world to be drawn
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@param box2DWorldTop the top coordinate of the area of the world to be drawn
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@param box2DWorldRight the right coordinate of the area of the world to be drawn
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@param box2DWorldBottom the bottom coordinate of the area of the world to be drawn
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@param targetArea the area within the target context onto which the source
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world rectangle should be mapped
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*/
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void render (Graphics& g,
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b2World& world,
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float box2DWorldLeft, float box2DWorldTop,
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float box2DWorldRight, float box2DWorldBottom,
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const Rectangle<float>& targetArea);
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// b2Draw methods:
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void DrawPolygon (const b2Vec2*, int32, const b2Color&) override;
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void DrawSolidPolygon (const b2Vec2*, int32, const b2Color&) override;
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void DrawCircle (const b2Vec2& center, float32 radius, const b2Color&) override;
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void DrawSolidCircle (const b2Vec2& center, float32 radius, const b2Vec2& axis, const b2Color&) override;
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void DrawSegment (const b2Vec2& p1, const b2Vec2& p2, const b2Color&) override;
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void DrawTransform (const b2Transform& xf) override;
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/** Converts a b2Color to a juce Colour. */
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virtual Colour getColour (const b2Color&) const;
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/** Returns the thickness to use for drawing outlines. */
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virtual float getLineThickness() const;
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protected:
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Graphics* graphics;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Box2DRenderer)
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};
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} // namespace juce
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