Magic_Game/src/kiwano/2d/ShapeActor.h

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include <kiwano/2d/Actor.h>
#include <kiwano/render/Brush.h>
#include <kiwano/render/Geometry.h>
#include <kiwano/render/GeometrySink.h>
#include <kiwano/render/StrokeStyle.h>

namespace kiwano
{
	KGE_DECLARE_SMART_PTR(ShapeActor);
	KGE_DECLARE_SMART_PTR(LineActor);
	KGE_DECLARE_SMART_PTR(RectActor);
	KGE_DECLARE_SMART_PTR(RoundRectActor);
	KGE_DECLARE_SMART_PTR(CircleActor);
	KGE_DECLARE_SMART_PTR(EllipseActor);
	KGE_DECLARE_SMART_PTR(PolygonActor);
	KGE_DECLARE_SMART_PTR(PathShapeActor);

	/**
	* \addtogroup Actors
	* @{
	*/

	/**
	* \~chinese
	* @brief <EFBFBD><EFBFBD>ά<EFBFBD><EFBFBD>״<EFBFBD><EFBFBD>ɫ
	*/
	class KGE_API ShapeActor
		: public Actor
	{
	public:
		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ά<EFBFBD><CEAC>״<EFBFBD><D7B4>ɫ
		ShapeActor();

		virtual ~ShapeActor();

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD>仭ˢ
		BrushPtr GetFillBrush() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ
		BrushPtr GetStrokeBrush() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		float GetStrokeWidth() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
		const StrokeStyle& GetStrokeStyle() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1>״
		Geometry GetGeometry() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD>߽<EFBFBD>
		Rect GetBounds() const override;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD>а<EFBFBD>Χ<EFBFBD><CEA7>
		Rect GetBoundingBox() const override;

		/// \~chinese
		/// @brief <20>жϵ<D0B6><CFB5>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>״<EFBFBD><D7B4>
		bool ContainsPoint(const Point& point) const override;

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		/// @param color <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		void SetFillColor(Color const& color);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>仭ˢ
		/// @param[in] brush <20><><EFBFBD>仭ˢ
		void SetFillBrush(BrushPtr brush);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		/// @param color <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɫ
		void SetStrokeColor(Color const& color);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ
		/// @param[in] brush <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˢ
		void SetStrokeBrush(BrushPtr brush);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȣ<EFBFBD>Ĭ<EFBFBD><C4AC>Ϊ 1.0
		void SetStrokeWidth(float width);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ
		void SetStrokeStyle(const StrokeStyle& stroke_style);

		/// \~chinese
		/// @brief <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>״
		void SetGeometry(Geometry const& geometry);

		void OnRender(RenderContext& ctx) override;

	protected:
		bool CheckVisibility(RenderContext& ctx) const override;

	private:
		BrushPtr	fill_brush_;
		BrushPtr	stroke_brush_;
		float		stroke_width_;
		StrokeStyle	stroke_style_;
		Rect		bounds_;
		Geometry	geo_;
	};


	/// \~chinese
	/// @brief <20>߶<EFBFBD>ͼ<EFBFBD>ν<EFBFBD>ɫ
	class KGE_API LineActor
		: public ShapeActor
	{
	public:
		LineActor();

		virtual ~LineActor();

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
		Point const& GetBeginPoint() const;

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD>߶<EFBFBD><DFB6>յ<EFBFBD>
		Point const& GetEndPoint() const;

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
		/// @param begin <20>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
		void SetBeginPoint(Point const& begin);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD>߶<EFBFBD><DFB6>յ<EFBFBD>
		/// @param end <20>߶<EFBFBD><DFB6>յ<EFBFBD>
		void SetEndPoint(Point const& end);

		/// \~chinese
		/// @brief <20><><EFBFBD>þ<EFBFBD><C3BE>δ<EFBFBD>С
		/// @param begin <20>߶<EFBFBD><DFB6><EFBFBD><EFBFBD><EFBFBD>
		/// @param end <20>߶<EFBFBD><DFB6>յ<EFBFBD>
		void SetLine(Point const& begin, Point const& end);

	private:
		Point begin_;
		Point end_;
	};


	/// \~chinese
	/// @brief <20><><EFBFBD>ν<EFBFBD>ɫ
	class KGE_API RectActor
		: public ShapeActor
	{
	public:
		RectActor();

		virtual ~RectActor();

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1><EFBFBD>δ<EFBFBD>С
		Size const& GetRectSize() const;

		/// \~chinese
		/// @brief <20><><EFBFBD>þ<EFBFBD><C3BE>δ<EFBFBD>С
		/// @param size <20><><EFBFBD>δ<EFBFBD>С
		void SetRectSize(Size const& size);

	private:
		Size rect_size_;
	};



	/// \~chinese
	/// @brief Բ<>Ǿ<EFBFBD><C7BE>ν<EFBFBD>ɫ
	class KGE_API RoundRectActor
		: public ShapeActor
	{
	public:
		RoundRectActor();

		virtual ~RoundRectActor();

		/// \~chinese
		/// @brief <20><>ȡԲ<C8A1>ǰ뾶
		Vec2 GetRadius() const;

		/// \~chinese
		/// @brief <20><>ȡԲ<C8A1>Ǿ<EFBFBD><C7BE>δ<EFBFBD>С
		Size GetRectSize() const;

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>Բ<EFBFBD>ǰ뾶
		/// @param radius Բ<>ǰ뾶
		void SetRadius(Vec2 const& radius);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>Բ<EFBFBD>Ǿ<EFBFBD><C7BE>δ<EFBFBD>С
		/// @param size Բ<>Ǿ<EFBFBD><C7BE>δ<EFBFBD>С
		void SetRectSize(Size const& size);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>Բ<EFBFBD>Ǿ<EFBFBD><C7BE><EFBFBD>
		/// @param size Բ<>Ǿ<EFBFBD><C7BE>δ<EFBFBD>С
		/// @param radius Բ<>ǰ뾶
		void SetRoundedRect(Size const& size, Vec2 const& radius);

	private:
		Size rect_size_;
		Vec2 radius_;
	};


	/// \~chinese
	/// @brief Բ<>ν<EFBFBD>ɫ
	class KGE_API CircleActor
		: public ShapeActor
	{
	public:
		CircleActor();

		virtual ~CircleActor();

		/// \~chinese
		/// @brief <20><>ȡԲ<C8A1>ΰ뾶
		float GetRadius() const;

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>Բ<EFBFBD>ΰ뾶
		/// @param radius Բ<>ΰ뾶
		void SetRadius(float radius);

	private:
		float radius_;
	};


	/// \~chinese
	/// @brief <20><>Բ<EFBFBD><D4B2>ɫ
	class KGE_API EllipseActor
		: public ShapeActor
	{
	public:
		EllipseActor();

		virtual ~EllipseActor();

		/// \~chinese
		/// @brief <20><>ȡ<EFBFBD><C8A1>Բ<EFBFBD>뾶
		Vec2 GetRadius() const;

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բ<EFBFBD>뾶
		/// @param radius <20><>Բ<EFBFBD>뾶
		void SetRadius(Vec2 const& radius);

	private:
		Vec2 radius_;
	};


	/// \~chinese
	/// @brief <20><><EFBFBD><EFBFBD><EFBFBD>ν<EFBFBD>ɫ
	class KGE_API PolygonActor
		: public ShapeActor
	{
	public:
		PolygonActor();

		virtual ~PolygonActor();

		/// \~chinese
		/// @brief <20><><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD>ζ˵<CEB6>
		/// @param points <20><><EFBFBD><EFBFBD><EFBFBD>ζ˵㼯<CBB5><E3BCAF>
		void SetVertices(Vector<Point> const& points);
	};


	/// \~chinese
	/// @brief ·<><C2B7>ͼ<EFBFBD>ν<EFBFBD>ɫ
	class KGE_API PathShapeActor
		: public ShapeActor
	{
	public:
		PathShapeActor();

		virtual ~PathShapeActor();

		/// \~chinese
		/// @brief <20><>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		/// @param begin_pos <20><>ʼ<EFBFBD><CABC>
		void BeginPath(Point const& begin_pos = Point());

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		/// @param closed ·<><C2B7><EFBFBD>Ƿ<EFBFBD><C7B7>պ<EFBFBD>
		void EndPath(bool closed = true);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>߶<EFBFBD>
		/// @param point <20>߶ζ˵<CEB6>
		void AddLine(Point const& point);

		/// \~chinese
		/// @brief <20><><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD>߶<EFBFBD>
		/// @param points <20>߶ζ˵㼯<CBB5><E3BCAF>
		void AddLines(Vector<Point> const& points);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>η<EFBFBD><CEB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		/// @param point1 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĵ<DFB5>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>
		/// @param point2 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵĵڶ<C4B5><DAB6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>
		/// @param point3 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߵ<EFBFBD><DFB5>յ<EFBFBD>
		void AddBezier(Point const& point1, Point const& point2, Point const& point3);

		/// \~chinese
		/// @brief <20><><EFBFBD>ӻ<EFBFBD><D3BB><EFBFBD>
		/// @param point <20><>ԲԲ<D4B2><D4B2>
		/// @param radius <20><>Բ<EFBFBD>뾶
		/// @param rotation <20><>Բ<EFBFBD><D4B2>ת<EFBFBD>Ƕ<EFBFBD>
		/// @param clockwise ˳ʱ<CBB3><CAB1> or <20><>ʱ<EFBFBD><CAB1>
		/// @param is_small <20>Ƿ<EFBFBD>ȡС<C8A1><D0A1> 180<38><30> <20>Ļ<EFBFBD>
		void AddArc(Point const& point, Size const& radius, float rotation, bool clockwise = true, bool is_small = true);

		/// \~chinese
		/// @brief <20><><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
		void ClearPath();

	private:
		GeometrySink sink_;
	};

	/** @} */

	inline void ShapeActor::SetStrokeColor(Color const& color)
	{
		if (!stroke_brush_)
		{
			stroke_brush_ = new Brush;
		}
		stroke_brush_->SetColor(color);
	}

	inline void ShapeActor::SetFillColor(Color const& color)
	{
		if (!fill_brush_)
		{
			fill_brush_ = new Brush;
		}
		fill_brush_->SetColor(color);
	}

	inline void					ShapeActor::SetFillBrush(BrushPtr brush)		{ fill_brush_ = brush; }
	inline void					ShapeActor::SetStrokeBrush(BrushPtr brush)		{ stroke_brush_ = brush; }
	inline BrushPtr				ShapeActor::GetFillBrush() const				{ return fill_brush_; }
	inline BrushPtr				ShapeActor::GetStrokeBrush() const				{ return stroke_brush_; }
	inline float				ShapeActor::GetStrokeWidth() const				{ return stroke_width_; }
	inline const StrokeStyle&	ShapeActor::GetStrokeStyle() const				{ return stroke_style_; }
	inline Geometry				ShapeActor::GetGeometry() const					{ return geo_; }

	inline Point const&			LineActor::GetBeginPoint() const				{ return begin_; }
	inline Point const&			LineActor::GetEndPoint() const					{ return end_; }
	inline void					LineActor::SetBeginPoint(Point const& begin)	{ SetLine(begin, end_); }
	inline void					LineActor::SetEndPoint(Point const& end)		{ SetLine(begin_, end); }

	inline Size const&			RectActor::GetRectSize() const					{ return rect_size_; }

	inline Vec2					RoundRectActor::GetRadius() const				{ return radius_; }
	inline Size					RoundRectActor::GetRectSize() const				{ return GetSize(); }

	inline float				CircleActor::GetRadius() const					{ return radius_; }

	inline Vec2			EllipseActor::GetRadius() const					{ return radius_; }
}