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

/*!	\file curvewarp.h

**	\brief Header file for implementation of the "Curve Warp" 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

**

** === N O T E S ===========================================================

**

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

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

#ifndef __SYNFIG_CURVEWARP_H

#define __SYNFIG_CURVEWARP_H

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

#include <vector></vector>

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

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

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

/* === 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

{

namespace modules

{

namespace lyr_std

{

class CurveWarp : public Layer

{

	SYNFIG_LAYER_MODULE_EXT

private:

	//!Parameter: (Point) origin of the warp

	ValueBase param_origin;

	//!Parameter: (Real) perpendicular expansion

	ValueBase param_perp_width;

	//!Parameter: (Point) start point of source

	ValueBase param_start_point;

	//!Parameter: (Point) end point of source

	ValueBase param_end_point;

	//!Parameter: (std::vector<blinepoint>) spline of the warp</blinepoint>

	ValueBase param_bline;

	//!Parameter: (bool)

	ValueBase param_fast;

	Vector perp_;

	Real curve_length_;

	void sync();

public:

	CurveWarp();

	virtual bool set_param(const String ¶m, const ValueBase &value);

	virtual ValueBase get_param(const String ¶m)const;

	virtual Point transform(const Point &point_, Real *dist=NULL, Real *along=0, int quality=10)const;

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

	virtual bool accelerated_render(Context context,Surface *surface,int quality, const RendDesc &renddesc, ProgressCallback *cb)const;

	virtual bool accelerated_cairorender(Context context,cairo_t *cr, int quality, const RendDesc &renddesc, ProgressCallback *cb)const;

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

	virtual Vocab get_param_vocab()const;

protected:

	virtual RendDesc get_sub_renddesc_vfunc(const RendDesc &renddesc) const;

};

}; // END of namespace lyr_std

}; // END of namespace modules

}; // END of namespace synfig

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

#endif