/* === 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 López
**
** 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/layers/layer_composite.h>
#include <synfig/vector.h>
#include <synfig/color.h>
#include <synfig/string.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include <vector>
#include <synfig/string.h>
#include <synfig/time.h>
#include <synfig/context.h>
#include <synfig/paramdesc.h>
#include <synfig/renddesc.h>
#include <synfig/surface.h>
#include <synfig/value.h>
#include <synfig/valuenode.h>
#include <synfig/canvas.h>
#include <ETL/misc>
#ifdef USE_MAC_FT_FUNCS
#include <CoreServices/CoreServices.h>
#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;
struct Glyph
{
FT_Glyph glyph;
FT_Vector pos;
//int width;
};
struct TextLine
{
int width;
std::vector<Glyph> glyph_table;
TextLine():width(0) { }
void clear_and_free();
int actual_height()const
{
int height(0);
std::vector<Glyph>::const_iterator iter;
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