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

/*!	\file halftone3.h

**	\brief Header file for implementation of the "Halftone 3" layer

**

**	$Id$

**

**	\legal

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

**	Copyright (c) 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_HALFTONE3_H

#define __SYNFIG_HALFTONE3_H

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

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

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

#include <synfig layer_composite_fork.h="" layers=""></synfig>

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

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

#include "halftone.h"

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

#define HALFTONE3_IMPORT_VALUE(x)                                             \

	if (#x=="tone[i].param_"+param && x.get_type()==value.get_type())         \

		{                                                                     \

			x=value;                                                          \

			return true;                                                      \

		}                                                                     \

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

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

using namespace synfig;

using namespace std;

using namespace etl;

class Halftone3 : public Layer_CompositeFork

{

	SYNFIG_LAYER_MODULE_EXT

private:

	//! Parameter: (Vector)

	ValueBase param_size;

	//! Parameter: (int)

	ValueBase param_type;

	//! Parameter: (class Halftone)

	Halftone tone[3];

	//! Parameter: (Color)

	ValueBase param_color[3];

	//! Parameter: (bool)

	ValueBase param_subtractive;

	float inverse_matrix[3][3];

	Color color_func(const Point &x, float supersample,const Color &under_color)const;

	float calc_supersample(const Point &x, float pw,float ph)const;

	//float halftone_func(Point x)const;

	void sync();

public:

	Halftone3();

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

	virtual ValueBase get_param(const String ¶m)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;

	virtual bool reads_context()const { return true; }

protected:

	virtual rendering::Task::Handle build_rendering_task_vfunc(Context context) const;

}; // END of class Halftone3

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

#endif