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gnuplot-old/term/driver.h at gnuplot-4-4-alpha · gnuplot/gnuplot-old · GitHub
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/* $Id: driver.h,v 1.22 2006/10/08 21:11:08 sfeam Exp $ */
/* GNUPLOT - driver.h */
/*[
* Copyright 1986 - 1993, 1998, 2004 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
#include
"syscfg.h"
#include
<stdio.h>
/* functions provided by term.c */
static
void
do_point
__PROTO
((
unsigned
int
x
,
unsigned
int
y
,
int
number
));
static
void
line_and_point
__PROTO
((
unsigned
int
x
,
unsigned
int
y
,
int
number
));
static
int
null_text_angle
__PROTO
((
int
ang
));
static
int
null_justify_text
__PROTO
((
enum
JUSTIFY
just
));
static
int
null_scale
__PROTO
((
double
x
,
double
y
));
static
void
options_null
__PROTO
((
void
));
static
void
UNKNOWN_null
__PROTO
((
void
));
/* static int set_font_null __PROTO((const char *s)); */
/* unused */
#define
set_font_null
NULL
extern
FILE
*
gpoutfile
;
extern
struct
termentry
*
term
;
/* 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 */
#define
NICE_LINE
0
#define
POINT_TYPES
6
#endif
/* TERM_DRIVER_H */
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