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

/*!	\file lyr_freetype.h

**	\brief Header file for implementation of the "Text" 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_LYR_FREETYPE_H

#define __SYNFIG_LYR_FREETYPE_H

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

//#ifdef __APPLE__

//#define USE_MAC_FT_FUNCS	(1)

//#endif

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

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

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

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

#include <ft2build.h></ft2build.h>

#include FT_FREETYPE_H

#include FT_GLYPH_H

#include <vector></vector>

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

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

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

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

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

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

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

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

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

#include <etl misc=""></etl>

#ifdef USE_MAC_FT_FUNCS

	#include <coreservices coreservices.h=""></coreservices>

	#include FT_MAC_H

#endif

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

using namespace synfig;

using namespace std;

using namespace etl;

struct Glyph

{

	FT_Glyph glyph;

	FT_Vector pos;

	//int width;

};

struct TextLine

{

	int width;

	std::vector<glyph> glyph_table;</glyph>

	TextLine():width(0) { }

	void clear_and_free();

	int actual_height()const

	{

		int height(0);

		std::vector<glyph>::const_iterator iter;</glyph>

		for(iter=glyph_table.begin();iter!=glyph_table.end();++iter)

		{

			FT_BBox   glyph_bbox;

			//FT_Glyph_Get_CBox( glyphs[n], ft_glyph_bbox_pixels, &glyph_bbox );

			FT_Glyph_Get_CBox( iter->glyph, ft_glyph_bbox_subpixels, &glyph_bbox );

			if(glyph_bbox.yMax>height)

				height=glyph_bbox.yMax;

		}

		return height;

	}

};

class Layer_Freetype : public synfig::Layer_Composite, public synfig::Layer_NoDeform

{

	SYNFIG_LAYER_MODULE_EXT

private:

	//!Parameter: (synfig::String) text of the layer;

	ValueBase param_text;

	//!Parameter: (synfig::Color) color of the text;

	ValueBase param_color;

	//!Parameter: (synfig::String) font family used in the text

	ValueBase param_family;

	//!Parameter: (int) style used in the font

	ValueBase param_style;

	//!Parameter: (int) weight used in the font

	ValueBase param_weight;

	//!Parameter: (synfig::Real) horizontal spacing

	ValueBase param_compress;

	//!Parameter: (synfig::Real) vertical spacing

	ValueBase param_vcompress;

	//!Parameter: (synfig::Vector) size of the text

	ValueBase param_size;

	//!Parameter: (synfig::Vector) text orientation

	ValueBase param_orient;

	//!Parameter: (synfig::Point) text position

	ValueBase param_origin;

	//!Parameter: (synfig::String) font used in the text

	ValueBase param_font;

	//!Parameter: (bool)

	ValueBase param_use_kerning;

	//!Parameter: (bool)

	ValueBase param_grid_fit;

	//!Parameter: (bool) inverts the rendered text

	ValueBase param_invert;

	FT_Face face;

	bool old_version;

	bool needs_sync_;

	void sync();

	synfig::Color color_func(const synfig::Point &x, int quality=10, synfig::ColorReal supersample=0)const;

	mutable std::mutex mutex_;

public:

	Layer_Freetype();

	virtual ~Layer_Freetype();

	virtual void on_canvas_set();

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

	virtual ValueBase get_param(const String & param)const;

	virtual Color get_color(Context context, const synfig::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;

	virtual Vocab get_param_vocab()const;

	virtual bool set_version(const String &ver){if(ver=="0.1")old_version=true;return true;}

	virtual void reset_version(){old_version=false;}

	virtual synfig::Rect get_bounding_rect()const;

private:

	void new_font(const synfig::String &family, int style=0, int weight=400);

	bool new_font_(const synfig::String &family, int style=0, int weight=400);

	bool new_face(const synfig::String &newfont);

};

extern FT_Library ft_library;

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

#endif