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

/*!	\file layerpaint.h

**	\brief Template File

**

**	$Id$

**

**	\legal

**	......... ... 2014 Ivan Mahonin

**

**	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_APP_ACTION_LAYERPAINT_H

#define __SYNFIG_APP_ACTION_LAYERPAINT_H

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

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

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

#include <synfigapp action.h=""></synfigapp>

#include <brushlib.h></brushlib.h>

/* === 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 synfigapp {

class Instance;

namespace Action {

class LayerPaint :

	public Undoable,

	public CanvasSpecific

{

public:

	struct PaintPoint {

		float x, y, pressure;

		double dtime;

		PaintPoint(): x(0), y(0), pressure(0), dtime(0) { }

		PaintPoint(float x, float y, float pressure, double dtime):

			x(x), y(y), pressure(pressure), dtime(dtime) { }

	};

	class PaintStroke {

	private:

		static PaintStroke *first, *last;

		PaintStroke *prev, *next;

		PaintStroke *prevSameLayer, *nextSameLayer;

		etl::handle<synfig::layer_bitmap> layer;</synfig::layer_bitmap>

		brushlib::Brush brush_;

		synfig::Surface surface;

		synfig::Point tl;

		synfig::Point br;

		synfig::Point new_tl;

		synfig::Point new_br;

		std::vector<paintpoint> points;</paintpoint>

		bool prepared;

		bool applied;

		void paint_prev(synfig::Surface &surface);

		void paint_self(synfig::Surface &surface);

		void reset(const PaintPoint &point);

	public:

		PaintStroke();

		~PaintStroke();

		void set_layer(etl::handle<synfig::layer_bitmap> layer) { assert(!prepared); this->layer = layer; }</synfig::layer_bitmap>

		etl::handle<synfig::layer_bitmap> get_layer() const { return layer; }</synfig::layer_bitmap>

		brushlib::Brush &brush() { assert(!prepared); return brush_; }

		const brushlib::Brush &get_brush() const { return brush_; }

		bool is_prepared() const { return prepared; }

		void prepare();

		void undo();

		void apply();

		void add_point_and_apply(const PaintPoint &point);

	};

private:

	synfig::GUID id;

	bool applied;

public:

	PaintStroke stroke;

	LayerPaint();

	static ParamVocab get_param_vocab();

	static bool is_candidate(const ParamList &x);

	virtual bool set_param(const synfig::String& name, const Param &);

	virtual bool is_ready()const;

	virtual void perform();

	virtual void undo();

	ACTION_MODULE_EXT

};

}; // END of namespace action

}; // END of namespace studio

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

#endif