GitHub Viewer

/* 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 /* functions provided by term.c */ static void do_point(unsigned int x, unsigned int y, int number); static int null_text_angle(float ang); static int null_justify_text(enum JUSTIFY just); static int null_scale(double x, double y); static void options_null(void); static void UNKNOWN_null(void); #define set_font_null NULL #if defined(WITH_METAPOST) || defined(WITH_METAFONT) || defined(WITH_TEKTRONIX) || !defined(NO_BITMAP_SUPPORT) static void line_and_point(unsigned int x, unsigned int y, int number); #endif extern FILE *gpoutfile; extern struct termentry *term; /* for use by all drivers */ #define sign(x) ((x) >= 0 ? 1 : -1) /* 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 */