/* $Id: driver.h,v 1.9 1998/06/18 14:59:19 ddenholm Exp $ */
/* GNUPLOT - driver.h $Id: driver.h,v 1.9 1998/06/18 14:59:19 ddenholm Exp $ */
/*[
* Copyright 1986 - 1993, 1998 Thomas Williams, Colin Kelley
*
* Permission to use, copy, and distribute this software and its
* documentation for any purpose with or without fee is hereby granted,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
*
* Permission to modify the software is granted, but not the right to
* distribute the complete modified source code. Modifications are to
* be distributed as patches to the released version. Permission to
* distribute binaries produced by compiling modified sources is granted,
* provided you
* 1. distribute the corresponding source modifications from the
* released version in the form of a patch file along with the binaries,
* 2. add special version identification to distinguish your version
* in addition to the base release version number,
* 3. provide your name and address as the primary contact for the
* support of your modified version, and
* 4. retain our contact information in regard to use of the base
* software.
* Permission to distribute the released version of the source code along
* with corresponding source modifications in the form of a patch file is
* granted with same provisions 2 through 4 for binary distributions.
*
* This software is provided "as is" without express or implied warranty
* to the extent permitted by applicable law.
]*/
#ifndef TERM_DRIVER_H
#define TERM_DRIVER_H
#if 0
/* Dangerous; putc may already be defined as fputc */
/* corey@cac added the next line for efficiency */
#define fputc putc
#endif
/* functions provided by in term.c */
void do_point __PROTO((unsigned int x, unsigned int y, int number));
void line_and_point __PROTO((unsigned int x, unsigned int y, int number));
void do_arrow __PROTO((unsigned int sx, unsigned int sy, unsigned int ex, unsigned int ey, int head));
int null_text_angle __PROTO((int ang));
int null_justify_text __PROTO((enum JUSTIFY just));
int null_scale __PROTO((double x, double y));
int do_scale __PROTO((double x, double y));
void options_null __PROTO((void));
void UNKNOWN_null __PROTO((void));
int set_font_null __PROTO((char *s));
void null_set_pointsize __PROTO((double size));
extern FILE *gpoutfile;
extern struct termentry *term;
extern float xsize, ysize;
/* for use by all drivers */
#ifndef NEXT
#define sign(x) ((x) >= 0 ? 1 : -1)
#else
/* it seems that sign as macro causes some conflict with precompiled headers */
static int sign(int x)
{
return x >= 0 ? 1 : -1;
}
#endif /* NEXT */
/* abs as macro is now uppercase, there are conflicts with a few C compilers
that have abs as macro, even though ANSI defines abs as function
(int abs(int)). Most calls to ABS in term/ could be changed to abs if
they use only int arguments and others to fabs, but for the time being,
all calls are done via the macro */
#ifndef ABS
# define ABS(x) ((x) >= 0 ? (x) : -(x))
#endif /* ABS */
/* GPMIN/GPMAX are already defined in "plot.h" */
#define NICE_LINE 0
#define POINT_TYPES 6
#endif /* TERM_DRIVER_H */