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/*
* picture.h -- ePiX globals functions for picture interface
*
* This file is part of ePiX, a C++ library for creating high-quality
* figures in LaTeX
*
* Version 1.1.16
* Last Change: September 11, 2007
*/
/*
* Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
* Andrew D. Hwang <rot 13 nujnat at zngupf dot ubylpebff dot rqh>
* Department of Mathematics and Computer Science
* College of the Holy Cross
* Worcester, MA, 01610-2395, USA
*/
/*
* ePiX 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.
*
* ePiX 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.
*
* You should have received a copy of the GNU General Public License
* along with ePiX; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef EPIX_PICTURE
#define EPIX_PICTURE
#include <string>
namespace ePiX {
class Color;
class P;
class picture_data;
class screen;
// "global" references
picture_data& the_picture();
double& xmin();
double& xmax();
double& xsize();
double& ymin();
double& ymax();
double& ysize();
double& tix();
// preferred initialization functions
// corners and dimensions, e.g. "4in x 15cm" or "4 x 6in"
// (width units take precedence, dimension string must be passed by value)
void picture(const P& arg1, const P& arg2, std::string);
// same syntax as for picture dimensions
void offset(std::string);
//// Old global functions for manipulating the page markup region ////
void bounding_box(const P&, const P&);
void picture(double, double);
void picture(const P&);
void offset(double hoff, double voff);
void offset(const P& arg);
void unitlength(const std::string& units);
// activate default screen
void begin();
// write the output file
void end_picture();
//// New global functions ////
// the_picture().the_canvas
screen& canvas();
// specify active screen; pass non-const ref only to assign/compare pointer
void activate(screen&);
void deactivate(screen&);
// add active or specified screen to the_picture
void import();
void inset(const P& sw, const P& ne);
void import(const screen& child);
void inset(const screen& child, const P& sw, const P& ne);
void inset(const screen& child); // use child's corners
// interpret child's coordinates as true pt on the page,
// place origin at P
void inlay(const screen& child, const P& loc);
// interpret stated coord as true pt, the other as Cartesian
void inlay_vertical(const screen& child, const P& loc);
void inlay_horizontal(const screen& child, const P& loc);
// set decorations on active screen
void backing(const Color&);
void border(const Color&, double); // width in pt
void border(const Color&, const std::string&);
void backing(); // use current fill style
void border(); // use current line pen
// write verbatim string to output file
void write(const std::string&);
void pre_write(const std::string&); // before picture header
void post_write(const std::string&); // after picture footer
// set output format
void eepic_format();
// void mp_format();
void tikz_format();
void pst_format();
// write in specified format to named output file
void print_eepic(const std::string& filename);
// void print_mp(const std::string& filename);
void print_tikz(const std::string& filename);
void print_pst(const std::string& filename);
// allow user to override in-file format request on the command line
inline void end()
{
#ifdef EPIX_FMT_PSTRICKS
pst_format();
#else
#ifdef EPIX_FMT_TIKZ
tikz_format();
#else
#ifdef EPIX_FMT_EEPIC
eepic_format();
#endif /* EPIX_FMT_EEPIC */
#endif /* EPIX_FMT_TIKZ */
#endif /* EPIX_FMT_PSTRICKS */
end_picture();
}
// for implementors of true-size elements
double pic_units_per_pt(); // exact
double units_per_pic_unit(); // approximate, exact at true aspect ratio
double pt_to_screen(double); // true length to screen length
////////////////////////////////////////////////////////////////
//// ////
//// DEPRECATED global variables required for backward ////
//// compatibility. Will be removed in a future release. ////
//// Use reference functions xmin() et. al. ////
//// ////
////////////////////////////////////////////////////////////////
// bounding_box corners and dimensions
extern double x_min, x_max, x_size, y_min, y_max, y_size;
} // end of namespace
#endif /* EPIX_PICTURE */
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