/* === S Y N F I G ========================================================= */

/*!	\file layer_shape.h

**	\brief Header file for implementation of the "Shape" layer

**

**	$Id$

**

**	\legal

**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley

**	Copyright (c) 2007-2008 Chris Moore

**	Copyright (c) 2012-2013 Carlos Lรณpez

**

**	This package is free software; you can redistribute it and/or

**	modify it under the terms of the GNU General Public License as

**	published by the Free Software Foundation; either version 2 of

**	the License, or (at your option) any later version.

**

**	This package is distributed in the hope that it will be useful,

**	but WITHOUT ANY WARRANTY; without even the implied warranty of

**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

**	General Public License for more details.

**	\endlegal

*/

/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_LAYER_SHAPE_H

#define __SYNFIG_LAYER_SHAPE_H

/* === H E A D E R S ======================================================= */

#include "layer_composite.h"

#include <synfig color.h=""></synfig>

#include <synfig vector.h=""></synfig>

#include <synfig blur.h=""></synfig>

#include <synfig contour.h="" primitive="" rendering=""></synfig>

#include <vector></vector>

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace synfig {

/*!	\class Layer_Shape

**	\brief writeme			*/

class Layer_Shape : public Layer_Composite, public Layer_NoDeform

{

	SYNFIG_LAYER_MODULE_EXT

protected:

	//!Parameter: (Color) Color of the shape

	ValueBase   param_color;

	//!Parameter: (Point) Origin of the shape definition

	ValueBase   param_origin;

	//!Parameter: (bool) Whether the shape is inverted or not

	ValueBase   param_invert;

	//!Parameter: (bool) Whether the shape has antialiased edge

	ValueBase   param_antialias;

	//!Parameter: (Blur::Type) The type of blur used for the feather

	ValueBase   param_blurtype;

	//!Parameter: (Real) Amount of feather of the shape

	ValueBase   param_feather;

	//!Parameter: (WindingStyle) How shape is rendered when crosses it self

	ValueBase	param_winding_style;

private:

	rendering::Contour::Handle contour;

	Vector feather;

	mutable Time last_sync_time;

	mutable Real last_sync_outline_grow;

protected:

	Layer_Shape(const Real &a = 1.0, const Color::BlendMethod m = Color::BLEND_COMPOSITE);

public:

	~Layer_Shape();

protected:

	rendering::Contour& shape_contour()

		{ return *contour; }

	void clear();

	void move_to(Real x, Real y);

	void line_to(Real x, Real y);

	void conic_to(Real x, Real y, Real x1, Real y1);

	void cubic_to(Real x, Real y, Real x1, Real y1, Real x2, Real y2);

	void close();

	void move_to(const Vector &p)

		{ move_to(p[0], p[1]); }

	void line_to(const Vector &p)

		{ line_to(p[0], p[1]); }

	void conic_to(const Vector &p, const Vector &p1)

		{ conic_to(p[0], p[1], p1[0], p1[1]); }

	void cubic_to(const Vector &p, const Vector &p1, const Vector &p2)

		{ cubic_to(p[0], p[1], p1[0], p1[1], p2[0], p2[1]); }

	void add(const rendering::Contour::Chunk &chunk);

	void add(const rendering::Contour::ChunkList &chunks);

	//! list will attached as line

	//! curve information for first segment of incoming list will ignored

	void add_reverse(const rendering::Contour::ChunkList &list);

	Vector get_feather() const { return feather; }

	void set_feather(const Vector &x) { feather = x; }

public:

	void sync(bool force = false) const;

	void force_sync() const { sync(true); }

	virtual bool set_shape_param(const String & param, const synfig::ValueBase &value);

	virtual bool set_param(const String & param, const synfig::ValueBase &value);

	virtual ValueBase get_param(const String & param)const;

	virtual Vocab get_param_vocab()const;

	virtual Color get_color(Context context, const Point &pos)const;

	virtual synfig::Layer::Handle hit_check(synfig::Context context, const synfig::Point &point)const;

	virtual Rect get_bounding_rect()const;

protected:

	virtual void sync_vfunc();

	virtual void set_time_vfunc(IndependentContext context, Time time)const;

	virtual rendering::Task::Handle build_composite_task_vfunc(ContextParams context_params)const;

private:

	bool render_shape(Surface *surface, bool useblend, const RendDesc &renddesc) const;

}; // END of Layer_Shape

}; // END of namespace synfig

/* === E N D =============================================================== */

#endif