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next.trm
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1995-07-19
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/*
* $Id: next.trm,v 1.0 1995/07/09 13:21:37 ril $
*
*/
/* GNUPLOT - next.trm */
/*
* Copyright (C) 1991, 1992
*
* 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 modified code. Modifications are to be distributed
* as patches to released version.
*
* This software is provided "as is" without express or implied warranty.
*
* This file is included by ../term.c.
*
* This terminal driver supports:
* next
*
* AUTHORS
* Robert Lutwak from Russell Lang's post.trm
* with thanks to Nick Strobel who first appreciated the ease of DNEXT
*
* send your comments or suggestions to (info-gnuplot@dartmouth.edu).
*
* This terminal attempts to connect, via the NeXTstep Distributed
* Objects system, to the "gnuplotServer." If there is no such
* service registered with the OS, the terminal attempts to fire
* up GnuTerm.app. If the user has not set the environment variable
* GNUTERMPATH, the terminal uses the users ApplicationPaths Workspace
* dwrite to search for GnuTerm.app (Note: this is usually something
* like ~/ApNEXT, ~/LocalApNEXT, ~/NextApNEXT, etc.).
* In order to use this filter, you MUST have GnuTerm.app installed
* on your system.
*
* Once connected to the server, this filter is basically Russell Lang's
* Postscript filter, except that the resultant postscript code
* is sent, via the D.O. system, to GnuTerm.app, which manages
* the windows which produce the postscript output on the screen.
*
*
* Defaults are
* 'set term next dashed monochrome "Helvetica" 14'
*
* To change font to Times-Roman and font size to 20pts use
* 'set term next "Times-Roman" 20'.
*/
#import <appkit/appkit.h>
#import <remote/NXProxy.h> /* setProtocolForProxy */
#import <remote/NXConnection.h> /* setProtocolForProxy */
#import <machkit/NXNetNameServer.h>
#import <machkit/senderIsInvalid.h>
#import <stdarg.h>
#ifndef GOT_DRIVER_H
#include "driver.h"
#endif
#ifdef TERM_REGISTER
register_term(next)
#endif
#ifdef TERM_PROTO
TERM_PUBLIC void NEXT_options __P((void));
TERM_PUBLIC void NEXT_common_init __P((int uses_fonts, unsigned int xoff, unsigned int yoff, unsigned int xsize, unsigned int ysize, char **dict));
TERM_PUBLIC void NEXT_init __P((void));
TERM_PUBLIC void NEXT_graphics __P((void));
TERM_PUBLIC void NEXT_text __P((void));
TERM_PUBLIC void NEXT_reset __P((void));
TERM_PUBLIC void NEXT_linetype __P((int linetype));
TERM_PUBLIC void NEXT_move __P((unsigned int x, unsigned int y));
TERM_PUBLIC void NEXT_vector __P((unsigned int x, unsigned int y));
TERM_PUBLIC void NEXT_put_text __P((unsigned int x, unsigned int y, char *str));
TERM_PUBLIC int NEXT_text_angle __P((int ang));
TERM_PUBLIC int NEXT_justify_text __P((enum JUSTIFY mode));
TERM_PUBLIC void NEXT_point __P((unsigned int x, unsigned int y, int number));
TERM_PUBLIC int NEXT_set_font __P((char * font));
TERM_PUBLIC char *NEXT_RememberFont __P((char *fname));
TERM_PUBLIC void NEXT_set_pointsize __P((double size));
#define NEXT_POINT_TYPES 8 /* div */
#define NEXT_XOFF 25 /* page offset in pts */
#define NEXT_YOFF 25
#define NEXT_XMAX 7200
#define NEXT_YMAX 5040
#define NEXT_XLAST (NEXT_XMAX - 1)
#define NEXT_YLAST (NEXT_YMAX - 1)
#define NEXT_VTIC (NEXT_YMAX/80)
#define NEXT_HTIC (NEXT_YMAX/80)
#define NEXT_SC (10) /* scale is 1pt = 10 units */
#define NEXT_LW (0.5*NEXT_SC) /* linewidth = 0.5 pts */
#define NEXT_VCHAR (14*NEXT_SC) /* default is 14 point characters */
#define NEXT_HCHAR (14*NEXT_SC*6/10)
#define GOT_NEXT_PROTO
#endif
#ifndef TERM_PROTO_ONLY
#ifdef TERM_BODY
@interface GnuTermDriver: Object <NXSenderIsInvalid>
{
id server;
}
- senderIsInvalid:(id)sender;
- plot:(char *)PSstr;
- init;
@end
#define DEFAULTNEXTSIZE 10000
static id gnuTermAccess; /* local object manages the D.O. connection */
static char *NEXTBuffer, *NEXTBufAt, *NEXTBufEnd;
static int NEXTsize;
static char NEXTTmpBuf[1000];
static void NEXTPrintf(char *, ...);
char NEXT_font[MAX_ID_LEN+1] = "Helvetica" ; /* name of font */
int NEXT_fontsize = 14; /* size of font in pts */
TBOOLEAN NEXT_color = FALSE;
TBOOLEAN NEXT_solid = FALSE; /* use dashed lines */
/* Added by Robert Davis <davis@ecn.purdue.edu> */
int NEXT_path_count=0; /* count of lines in path */
int NEXT_ang=0; /* text angle */
enum JUSTIFY NEXT_justify=LEFT; /* text is flush left */
/* added by Matt Heffron <heffron@falstaff.css.beckman.com> */
static TBOOLEAN NEXT_duplex_state = FALSE;
static TBOOLEAN NEXT_duplex_option = FALSE;
static char GPFAR * GPFAR NEXT_header[] = {
"/M {moveto} bind def\n",
"/L {lineto} bind def\n",
"/R {rmoveto} bind def\n",
"/V {rlineto} bind def\n",
"/vpt2 vpt 2 mul def\n",
"/hpt2 hpt 2 mul def\n",
/* flush left show */
"/Lshow { currentpoint stroke M\n",
" 0 vshift R show } def\n",
/* flush right show */
"/Rshow { currentpoint stroke M\n",
" dup stringwidth pop neg vshift R show } def\n",
/* centred show */
"/Cshow { currentpoint stroke M\n",
" dup stringwidth pop -2 div vshift R show } def\n",
/* Dash or Color Line */
"/DL { Color {setrgbcolor Solid {pop []} if 0 setdash }\n",
" {pop pop pop Solid {pop []} if 0 setdash} ifelse } def\n",
/* Border Lines */
"/BL { stroke gnulinewidth 2 mul setlinewidth } def\n",
/* Axes Lines */
"/AL { stroke gnulinewidth 2 div setlinewidth } def\n",
/* Plot Lines */
"/PL { stroke gnulinewidth setlinewidth } def\n",
/* Line Types */
"/LTb { BL [] 0 0 0 DL } def\n", /* border */
"/LTa { AL [1 dl 2 dl] 0 setdash 0 0 0 setrgbcolor } def\n", /* axes */
"/LT0 { PL [] 0 1 0 DL } def\n",
"/LT1 { PL [4 dl 2 dl] 0 0 1 DL } def\n",
"/LT2 { PL [2 dl 3 dl] 1 0 0 DL } def\n",
"/LT3 { PL [1 dl 1.5 dl] 1 0 1 DL } def\n",
"/LT4 { PL [5 dl 2 dl 1 dl 2 dl] 0 1 1 DL } def\n",
"/LT5 { PL [4 dl 3 dl 1 dl 3 dl] 1 1 0 DL } def\n",
"/LT6 { PL [2 dl 2 dl 2 dl 4 dl] 0 0 0 DL } def\n",
"/LT7 { PL [2 dl 2 dl 2 dl 2 dl 2 dl 4 dl] 1 0.3 0 DL } def\n",
"/LT8 { PL [2 dl 2 dl 2 dl 2 dl 2 dl 2 dl 2 dl 4 dl] 0.5 0.5 0.5 DL } def\n",
/* Point (Round) */ /* Matt Heffron make it round */
"/Pnt { stroke [] 0 setdash\n",
" gsave 1 setlinecap M 0 0 V stroke grestore } def\n",
/* Diamond */
"/Dia { stroke [] 0 setdash 2 copy vpt add M\n",
" hpt neg vpt neg V hpt vpt neg V\n",
" hpt vpt V hpt neg vpt V closepath stroke\n",
" Pnt } def\n",
/* Plus */
"/Pls { stroke [] 0 setdash vpt sub M 0 vpt2 V\n",
" currentpoint stroke M\n",
" hpt neg vpt neg R hpt2 0 V stroke\n",
" } def\n",
/* Box */
"/Box { stroke [] 0 setdash 2 copy exch hpt sub exch vpt add M\n",
" 0 vpt2 neg V hpt2 0 V 0 vpt2 V\n",
" hpt2 neg 0 V closepath stroke\n",
" Pnt } def\n",
/* Cross (X) */
"/Crs { stroke [] 0 setdash exch hpt sub exch vpt add M\n",
" hpt2 vpt2 neg V currentpoint stroke M\n",
" hpt2 neg 0 R hpt2 vpt2 V stroke } def\n",
/* Triangle Up*/
"/TriU { stroke [] 0 setdash 2 copy vpt 1.12 mul add M\n",
" hpt neg vpt -1.62 mul V\n",
" hpt 2 mul 0 V\n",
" hpt neg vpt 1.62 mul V closepath stroke\n",
" Pnt } def\n",
/* Star */
"/Star { 2 copy Pls Crs } def\n",
/* div added filed box */
/* Filled Box */
"/BoxF { stroke [] 0 setdash exch hpt sub exch vpt add M\n",
" 0 vpt2 neg V hpt2 0 V 0 vpt2 V\n",
" hpt2 neg 0 V closepath fill } def\n",
/* div added filled triangle */
/* Triangle Up, Filled */
"/TriUF { stroke [] 0 setdash vpt 1.12 mul add M\n",
" hpt neg vpt -1.62 mul V\n",
" hpt 2 mul 0 V\n",
" hpt neg vpt 1.62 mul V closepath fill } def\n",
/* Matt Heffron: added a few more types */
/* Triangle Down */
"/TriD { stroke [] 0 setdash 2 copy vpt 1.12 mul sub M\n",
" hpt neg vpt 1.62 mul V\n",
" hpt 2 mul 0 V\n",
" hpt neg vpt -1.62 mul V closepath stroke\n",
" Pnt } def\n",
/* Triangle Down, Filled*/
"/TriDF { stroke [] 0 setdash vpt 1.12 mul sub M\n",
" hpt neg vpt 1.62 mul V\n",
" hpt 2 mul 0 V\n",
" hpt neg vpt -1.62 mul V closepath fill} def\n",
/* Diamond, Filled */
"/DiaF { stroke [] 0 setdash vpt add M\n",
" hpt neg vpt neg V hpt vpt neg V\n",
" hpt vpt V hpt neg vpt V closepath fill } def\n",
/* Pentagon */
"/Pent { stroke [] 0 setdash 2 copy gsave\n",
" translate 0 hpt M 4 {72 rotate 0 hpt L} repeat\n",
" closepath stroke grestore Pnt } def\n",
/* Pentagon, Filled */
"/PentF { stroke [] 0 setdash gsave\n",
" translate 0 hpt M 4 {72 rotate 0 hpt L} repeat\n",
" closepath fill grestore } def\n",
/* Circle */
"/Circle { stroke [] 0 setdash 2 copy\n",
" hpt 0 360 arc stroke Pnt } def\n",
/* Circle,Filled */
"/CircleF { stroke [] 0 setdash hpt 0 360 arc fill } def\n",
/* 16 differently filled circles */
"/C0 { BL [] 0 setdash 2 copy moveto vpt 90 450 arc } bind def\n",
"/C1 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 90 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C2 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 90 180 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C3 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 180 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C4 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 180 270 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C5 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 90 arc\n",
" 2 copy moveto\n",
" 2 copy vpt 180 270 arc closepath fill\n",
" vpt 0 360 arc } bind def\n",
"/C6 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 90 270 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C7 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 270 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C8 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 270 360 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C9 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 270 450 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C10 { BL [] 0 setdash 2 copy 2 copy moveto vpt 270 360 arc closepath fill\n",
" 2 copy moveto\n",
" 2 copy vpt 90 180 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C11 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 90 arc closepath fill\n",
" 2 copy moveto\n",
" 2 copy vpt 180 360 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C12 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 180 360 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C13 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 0 90 arc closepath fill\n",
" 2 copy moveto\n",
" 2 copy vpt 180 360 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
"/C14 { BL [] 0 setdash 2 copy moveto\n",
" 2 copy vpt 90 360 arc closepath fill\n",
" vpt 0 360 arc } bind def\n",
"/C15 { BL [] 0 setdash 2 copy vpt 0 360 arc closepath fill\n",
" vpt 0 360 arc closepath } bind def\n",
/* Auxiliary definitions for rectangles */
"/Rec { newpath 4 2 roll moveto 1 index 0 rlineto 0 exch rlineto\n",
" neg 0 rlineto closepath } bind def\n",
"/Square { dup Rec } bind def\n",
"/Bsquare { vpt sub exch vpt sub exch vpt2 Square } bind def\n",
/* 16 differently filled squares */
"/S0 { BL [] 0 setdash 2 copy moveto 0 vpt rlineto BL Bsquare } bind def\n",
"/S1 { BL [] 0 setdash 2 copy vpt Square fill Bsquare } bind def\n",
"/S2 { BL [] 0 setdash 2 copy exch vpt sub exch vpt Square fill Bsquare } bind def\n",
"/S3 { BL [] 0 setdash 2 copy exch vpt sub exch vpt2 vpt Rec fill Bsquare } bind def\n",
"/S4 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt Square fill Bsquare } bind def\n",
"/S5 { BL [] 0 setdash 2 copy 2 copy vpt Square fill\n",
" exch vpt sub exch vpt sub vpt Square fill Bsquare } bind def\n",
"/S6 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt vpt2 Rec fill Bsquare } bind def\n",
"/S7 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt vpt2 Rec fill\n",
" 2 copy vpt Square fill\n",
" Bsquare } bind def\n",
"/S8 { BL [] 0 setdash 2 copy vpt sub vpt Square fill Bsquare } bind def\n",
"/S9 { BL [] 0 setdash 2 copy vpt sub vpt vpt2 Rec fill Bsquare } bind def\n",
"/S10 { BL [] 0 setdash 2 copy vpt sub vpt Square fill 2 copy exch vpt sub exch vpt Square fill\n",
" Bsquare } bind def\n",
"/S11 { 2 copy vpt sub vpt Square fill 2 copy exch vpt sub exch vpt2 vpt Rec fill\n",
" Bsquare } bind def\n",
"/S12 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt2 vpt Rec fill Bsquare } bind def\n",
"/S13 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt2 vpt Rec fill\n",
" 2 copy vpt Square fill Bsquare } bind def\n",
"/S14 { BL [] 0 setdash 2 copy exch vpt sub exch vpt sub vpt2 vpt Rec fill\n",
" 2 copy exch vpt sub exch vpt Square fill Bsquare } bind def\n",
"/S15 { BL [] 0 setdash 2 copy Bsquare fill Bsquare } bind def\n",
/* 16 different diamonds (actually just rotated squares) */
"/D0 { gsave translate 45 rotate 0 0 Box stroke grestore } bind def\n",
"/D1 { gsave translate 45 rotate 0 0 S1 stroke grestore } bind def\n",
"/D2 { gsave translate 45 rotate 0 0 S2 stroke grestore } bind def\n",
"/D3 { gsave translate 45 rotate 0 0 S3 stroke grestore } bind def\n",
"/D4 { gsave translate 45 rotate 0 0 S4 stroke grestore } bind def\n",
"/D5 { gsave translate 45 rotate 0 0 S5 stroke grestore } bind def\n",
"/D6 { gsave translate 45 rotate 0 0 S6 stroke grestore } bind def\n",
"/D7 { gsave translate 45 rotate 0 0 S7 stroke grestore } bind def\n",
"/D8 { gsave translate 45 rotate 0 0 S8 stroke grestore } bind def\n",
"/D9 { gsave translate 45 rotate 0 0 S9 stroke grestore } bind def\n",
"/D10 { gsave translate 45 rotate 0 0 S10 stroke grestore } bind def\n",
"/D11 { gsave translate 45 rotate 0 0 S11 stroke grestore } bind def\n",
"/D12 { gsave translate 45 rotate 0 0 S12 stroke grestore } bind def\n",
"/D13 { gsave translate 45 rotate 0 0 S13 stroke grestore } bind def\n",
"/D14 { gsave translate 45 rotate 0 0 S14 stroke grestore } bind def\n",
"/D15 { gsave translate 45 rotate 0 0 S15 stroke grestore } bind def\n",
NULL
};
static char GPFAR * GPFAR ENHNEXT_header[] = {
/* For MFshow and MFwidth the tos is an array with the string and font info: */
/* [<fontname (a string)> <fontsize> <vertical offset> <width significant?> <text string>] */
"/MFshow {{dup dup 0 get findfont exch 1 get scalefont setfont\n",
" [ currentpoint ] exch dup 2 get 0 exch rmoveto dup 4 get show dup\n",
" 3 get {2 get neg 0 exch rmoveto pop} {pop aload pop moveto}ifelse} forall} bind def\n",
"/MFwidth {0 exch {dup 3 get{dup dup 0 get findfont exch 1 get scalefont setfont\n",
" 4 get stringwidth pop add}\n",
" {pop} ifelse} forall} bind def\n",
/* flush left show */
"/MLshow { currentpoint stroke M\n",
" 0 exch R MFshow } bind def\n",
/* flush right show */
"/MRshow { currentpoint stroke M\n",
" exch dup MFwidth neg 3 -1 roll R MFshow } def\n",
/* centred show */
"/MCshow { currentpoint stroke M\n",
" exch dup MFwidth -2 div 3 -1 roll R MFshow } def\n",
NULL
};
/* added to post by Matt Heffron <heffron@falstaff.css.beckman.com> */
/* moved to post.trm by drd */
struct NEXT_FontName {
char *name;
struct NEXT_FontName *next;
} *NEXT_DocFonts = NULL;
TERM_PUBLIC char *NEXT_RememberFont(fname)
char *fname;
{
struct NEXT_FontName *fnp;
for (fnp=NEXT_DocFonts; fnp && strcmp(fnp->name, fname); fnp = fnp->next);
if (fnp)
return fnp->name; /* we must have found it in the list */
if (encoding == ENCODING_ISO_8859_1) {
NEXTPrintf("/%s reencodeISO def\n",fname);
}
fnp = (struct NEXT_FontName *)alloc(sizeof(struct NEXT_FontName), "PostScript Font record");
fnp->name = alloc(1+strlen(fname), "PostScript Font name");
strcpy(fnp->name, fname);
fnp->next = NEXT_DocFonts;
NEXT_DocFonts = fnp;
return fnp->name;
}
int NEXT_pen_x, NEXT_pen_y;
int NEXT_taken;
int NEXT_linetype_last;
TBOOLEAN NEXT_relative_ok;
TERM_PUBLIC void NEXT_options()
{
if (!END_OF_COMMAND) {
if (almost_equals(c_token,"d$efault")) {
NEXT_color=FALSE;
NEXT_solid=FALSE;
NEXT_duplex_option=FALSE;
strcpy(NEXT_font,"Helvetica");
NEXT_fontsize = 14;
term->v_char = (unsigned int)(NEXT_fontsize*NEXT_SC);
term->h_char = (unsigned int)(NEXT_fontsize*NEXT_SC*6/10);
term->put_text = NEXT_put_text;
c_token++;
}
}
if (!END_OF_COMMAND) {
if (almost_equals(c_token,"m$onochrome")) {
NEXT_color=FALSE;
c_token++;
}
else if (almost_equals(c_token,"c$olor")) {
NEXT_color=TRUE;
c_token++;
}
}
if (!END_OF_COMMAND) {
if (almost_equals(c_token,"so$lid")) {
NEXT_solid=TRUE;
c_token++;
}
else if (almost_equals(c_token,"da$shed")) {
NEXT_solid=FALSE;
c_token++;
}
}
if (!END_OF_COMMAND) {
if (almost_equals(c_token,"si$mplex")) {
NEXT_duplex_state = FALSE;
NEXT_duplex_option = TRUE;
c_token++;
}
else if (almost_equals(c_token,"du$plex")) {
NEXT_duplex_state = TRUE;
NEXT_duplex_option = TRUE;
c_token++;
}
else if (almost_equals(c_token,"defaultp$lex")) {
NEXT_duplex_option = FALSE;
c_token++;
}
}
if (!END_OF_COMMAND && isstring(c_token)) {
quote_str(NEXT_font,c_token, MAX_ID_LEN);
c_token++;
}
if (!END_OF_COMMAND) {
/* We have font size specified */
struct value a;
NEXT_fontsize = (int)real(const_express(&a));
term->v_char = (unsigned int)(NEXT_fontsize*NEXT_SC);
term->h_char = (unsigned int)(NEXT_fontsize*NEXT_SC*6/10);
}
sprintf(default_font,"%s,%d",NEXT_font,NEXT_fontsize);
/* default_font holds the font and size set at 'set term' */
/* Entry font added by DJL */
sprintf(term_options,"%s %s %s \"%s\" %d",
NEXT_color ? "color" : "monochrome",
NEXT_solid ? "solid" : "dashed",
NEXT_duplex_option ? (NEXT_duplex_state ? "duplex" : "simplex")
: "defaultplex",
NEXT_font,NEXT_fontsize);
}
/* store settings passed to common_init() for use in NEXT_graphics()
* are reserved for storing the term options
*/
static int NEXT_common_uses_fonts;
static unsigned int NEXT_common_xoff, NEXT_common_yoff;
TERM_PUBLIC void NEXT_common_init(uses_fonts, xoff, yoff, width, height, dict)
int uses_fonts; /* 0 for NEXT(la)tex */
unsigned int xoff, yoff; /* offset - 50 for /post, 0 for NEXT(la)tex */
unsigned int width,height; /* for bounding box */
char **dict; /* extra entries for the dictionary */
{
static char GPFAR NEXTi1[] = "%%%%Creator: gnuplot\n\
%%%%DocumentFonts: %s\n";
static char GPFAR NEXTi2[] = "%%%%EndComments\n\
/gnudict 120 dict def\ngnudict begin\n\
/Color %s def\n\
/Solid %s def\n\
/gnulinewidth %.3f def\n\
/vshift %d def\n\
/dl {%d mul} def\n\
/hpt %.1f def\n\
/vpt %.1f def\n";
static char GPFAR *NEXT_iso_8859_1_encoding[] = {
"/reencodeISO {\n",
"dup dup findfont dup length dict begin\n",
"{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n",
"/Encoding ISOLatin1Encoding def\n",
"currentdict end definefont\n",
"} def\n",
"/ISOLatin1Encoding [\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n",
"/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n",
"/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n",
"/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n",
"/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n",
"/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n",
"/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n",
"/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n",
"/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n",
"/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n",
"/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n",
"/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n",
"/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n",
"/guillemotright/onequarter/onehalf/threequarters/questiondown\n",
"/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n",
"/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n",
"/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n",
"/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n",
"/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n",
"/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n",
"/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n",
"/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n",
"/yacute/thorn/ydieresis\n",
"] def\n",
NULL };
struct termentry *t = term;
int i;
NEXT_common_uses_fonts = uses_fonts;
NEXT_common_xoff = xoff;
NEXT_common_yoff = yoff;
NEXTPrintf("%%!NEXT-Adobe-2.0\n");
NEXTPrintf( NEXTi1, uses_fonts ? "(atend)" : "");
NEXTPrintf("%%%%BoundingBox: %d %d %d %d\n", xoff, yoff,
(int)(xsize*width/NEXT_SC+0.5+xoff),
(int)(ysize*height/NEXT_SC+0.5+yoff) );
NEXTPrintf( NEXTi2,
NEXT_color ? "true" : "false",
NEXT_solid ? "true" : "false",
NEXT_LW, /* line width */
(int)(t->v_char)/(-3), /* shift for vertical centring */
NEXT_SC, /* dash length */
pointsize*NEXT_HTIC/2.0, /* half point width */
pointsize*NEXT_VTIC/2.0); /* half point height */
if (uses_fonts && (encoding == ENCODING_ISO_8859_1)) {
for (i=0; NEXT_iso_8859_1_encoding[i] != NULL; i++) {
NEXTPrintf("%s",NEXT_iso_8859_1_encoding[i]);
}
}
for ( i=0; NEXT_header[i] != NULL; i++)
NEXTPrintf("%s",NEXT_header[i]);
if (NEXT_duplex_option)
NEXTPrintf( "statusdict begin %s setduplexmode end\n",
NEXT_duplex_state ? "true" : "false");
NEXT_RememberFont(NEXT_font);
if (dict)
while (*dict)
NEXTPrintf("%s", *(dict++));
NEXTPrintf("end\n%%%%EndProlog\n");
}
/* the init fn for the postscript driver */
TERM_PUBLIC void NEXT_init()
{
/* Connect to server port */
gnuTermAccess = [[GnuTermDriver alloc] init];
/* Initialize output string */
NEXTsize = DEFAULTNEXTSIZE;
if ((NEXTBuffer = malloc(NEXTsize)) == NULL) {
printf("Malloc error in next filter init\n");
exit(1);
}
NEXTBufEnd = NEXTBuffer + NEXTsize;
NEXTBufAt = NEXTBuffer;
term->xmax = NEXT_XMAX;
term->ymax = NEXT_YMAX;
/* NEXT_common_init(1, NEXT_XOFF, NEXT_YOFF, term->xmax, term->ymax,
NEXT_header);*/
}
TERM_PUBLIC void NEXT_graphics()
{
static char GPFAR NEXTg1[] = "0 setgray\nnewpath\n";
struct termentry *t = term;
*NEXTBuffer = 0;
NEXTBufAt = NEXTBuffer;
NEXT_common_init(1, NEXT_XOFF, NEXT_YOFF, term->xmax, term->ymax,
ENHNEXT_header);
NEXTPrintf("gnudict begin\ngsave\n");
NEXTPrintf("%d %d translate\n",NEXT_common_xoff, NEXT_common_yoff);
NEXTPrintf("%.3f %.3f scale\n", 1.0/NEXT_SC,1.0/NEXT_SC);
/* NEXTPrintf("90 rotate\n0 %d translate\n", (int)(-NEXT_YMAX)); */
NEXTPrintf( NEXTg1);
if (NEXT_common_uses_fonts)
NEXTPrintf( "(%s) findfont %d scalefont setfont\n", NEXT_font, (t->v_char) );
NEXT_path_count = 0;
NEXT_relative_ok = FALSE;
NEXT_pen_x = NEXT_pen_y = -4000;
NEXT_taken = 0;
NEXT_linetype_last = -1;
}
TERM_PUBLIC void NEXT_text()
{
NEXT_path_count = 0;
NEXTPrintf("stroke\ngrestore\nend\n");
/* Terminate string */
*NEXTBufAt = 0;
/* Here's the call that dumps the string to the server */
[gnuTermAccess plot:NEXTBuffer];
}
TERM_PUBLIC void NEXT_reset()
{
NEXTPrintf("%%%%Trailer\n");
if (!NEXT_common_uses_fonts) {
NEXTPrintf("%%%%DocumentFonts: ");
while (NEXT_DocFonts) {
struct NEXT_FontName *fnp;
fnp = NEXT_DocFonts->next;
NEXTPrintf( "%s%s", NEXT_DocFonts->name, fnp ? ", " : "\n");
free(NEXT_DocFonts->name);
free(NEXT_DocFonts);
NEXT_DocFonts=fnp;
}
}
}
TERM_PUBLIC void NEXT_linetype(linetype)
int linetype;
{
linetype = (linetype % 9) + 2;
if (linetype < 0) linetype = 0;
NEXT_relative_ok = FALSE;
if (NEXT_linetype_last == linetype) return;
NEXT_linetype_last = linetype;
NEXTPrintf("LT%c\n", "ba012345678"[linetype]);
NEXT_path_count = 0;
}
TERM_PUBLIC void NEXT_move(x,y)
unsigned int x,y;
{
int dx, dy;
char abso[20],rel[20];
dx = x - NEXT_pen_x;
dy = y - NEXT_pen_y;
/* can't cancel all null moves--need a move after stroke'ing */
if (dx==0 && dy==0 && NEXT_relative_ok)
return;
sprintf(abso, "%d %d M\n", x, y);
sprintf(rel, "%d %d R\n", dx, dy);
if (strlen(rel) < strlen(abso) && NEXT_relative_ok){
NEXTPrintf("%s", rel);
NEXT_taken++;
}else
NEXTPrintf("%s", abso);
NEXT_relative_ok = TRUE;
NEXT_path_count += 1;
NEXT_pen_x = x;
NEXT_pen_y = y;
}
TERM_PUBLIC void NEXT_vector(x,y)
unsigned int x,y;
{
int dx, dy;
char abso[20],rel[20];
dx = x - NEXT_pen_x;
dy = y - NEXT_pen_y;
if (dx==0 && dy==0) return;
sprintf(abso, "%d %d L\n", x, y);
sprintf(rel, "%d %d V\n", dx, dy);
if (strlen(rel) < strlen(abso) && NEXT_relative_ok){
NEXTPrintf("%s", rel);
NEXT_taken++;
}else
NEXTPrintf("%s", abso);
NEXT_relative_ok = TRUE;
NEXT_path_count += 1;
NEXT_pen_x = x;
NEXT_pen_y = y;
if (NEXT_path_count >= 400) {
NEXTPrintf("currentpoint stroke M\n");
NEXT_path_count = 0;
}
}
TERM_PUBLIC int NEXT_text_angle(ang)
int ang;
{
NEXT_ang=ang;
return TRUE;
}
TERM_PUBLIC int NEXT_justify_text(mode)
enum JUSTIFY mode;
{
NEXT_justify=mode;
return TRUE;
}
TERM_PUBLIC int NEXT_set_font(font) /* Entry font added by DJL */
char *font;
{
char name[32];
int size,sep;
sep=strcspn(font,",");
strncpy(name,font,sep); name[sep]='\0';
size=NEXT_fontsize; sscanf (&(font[sep+1]),"%d",&size);
NEXTPrintf("/%s findfont %d scalefont setfont\n",name,size*NEXT_SC);
NEXT_RememberFont(name);
return TRUE;
}
/* postscript point routines */
TERM_PUBLIC void NEXT_set_pointsize(size)
double size;
{
NEXTPrintf( "/vpt %.1f def /hpt %.1f def /vpt2 vpt 2 mul def /hpt2 hpt 2 mul def\n",
pointsize*NEXT_VTIC*0.5, pointsize*NEXT_HTIC*0.5);
}
TERM_PUBLIC void NEXT_point(x,y,number)
unsigned int x,y;
int number;
{
static char *pointFNS[] = {"Pnt", "Pls", "Crs", "Star",
"Box", "BoxF", "Circle", "CircleF",
"TriU", "TriUF", "TriD", "TriDF",
"Dia", "DiaF", "Pent", "PentF",
"C0", "C1", "C2", "C3",
"C4", "C5", "C6", "C7",
"C8", "C9", "C10", "C11",
"C12", "C13", "C14", "C15",
"S0", "S1", "S2", "S3",
"S4", "S5", "S6", "S7",
"S8", "S9", "S10", "S11",
"S12", "S13", "S14", "S15",
"D0", "D1", "D2", "D3",
"D4", "D5", "D6", "D7",
"D8", "D9", "D10", "D11",
"D12", "D13", "D14", "D15"
};
if (number < 0)
number = -1; /* negative types are all 'dot' */
else
number %= sizeof(pointFNS)/sizeof(pointFNS[0]) -1;
NEXTPrintf("%d %d %s\n", x, y, pointFNS[number+1]);
NEXT_relative_ok = 0;
NEXT_path_count = 0;
NEXT_linetype_last = -1; /* force next linetype change */
}
/* All lifted from the anced postscript driver */
static TBOOLEAN NEXT_opened_string; /* try to cut out empty ()'s */
/* used in determining height of processed text */
static float NEXT_max_height, NEXT_min_height;
/* process a bit of string, and return the last character used.
* p is start of string
* brace is TRUE to keep processing to }, FALSE for do one character
* fontname & fontsize are obvious
* base is the current baseline
* widthflag is TRUE if the width of this should count,
* FALSE for zero width boxes
*/
static char *NEXT_recurse(p, brace, fontname, fontsize, base, widthflag)
char *p, *fontname;
TBOOLEAN brace, widthflag;
double fontsize, base;
{
/* close a postscript string if it has been opened */
#define NEXT_FLUSH \
{ if (NEXT_opened_string) \
{ NEXTPrintf("%s", ")]\n"); \
NEXT_opened_string = FALSE; \
} \
}
#define NEXT_OPEN \
{ if (!NEXT_opened_string) \
{ NEXTPrintf( "[(%s) %.1f %.1f %s (", \
fontname, fontsize, base, \
widthflag ? "true" : "false"); \
NEXT_opened_string = TRUE; \
} \
}
/* Start each recursion with a clean string */
NEXT_FLUSH
if (base + fontsize > NEXT_max_height)
{ NEXT_max_height = base + fontsize;
}
if (base < NEXT_min_height)
{ NEXT_min_height = base;
}
for ( ; *p; ++p)
{ float shift;
float f=0; /* used for getting new font size */
char *localfontname, ch;
switch (*p)
{
case '}' :
if (brace)
return (p);
fprintf(stderr, "next driver - spurious }\n");
break;
case '_' :
case '^' :
shift = (*p == '^') ? 0.5 : -0.3;
NEXT_FLUSH
p = NEXT_recurse(p+1, FALSE, fontname, fontsize*0.8, base+shift*fontsize, widthflag);
break;
case '{' :
/*{{{ recurse (possibly with a new font) */
if (*++p == '/')
{ /* then parse a fontname, optional fontsize */
while (*++p == ' ');
localfontname = p;
while ((ch = *p) > ' ' && ch != '=')
++p;
if (ch == '=')
{
*p++ = '\0';
/*{{{ get optional font size*/
f = (float)strtod(p, &p);
if (f)
f *= NEXT_SC; /* remember the scaling */
else
f = fontsize;
/*}}}*/
}
else
{
*p++ = '\0';
f = fontsize;
}
while (*p == ' ')
++p;
if (*localfontname)
localfontname = NEXT_RememberFont(localfontname);
else
localfontname = fontname;
}
else
{
localfontname = fontname;
f = fontsize;
}
/*}}}*/
p = NEXT_recurse(p, TRUE, localfontname, f, base, widthflag);
NEXT_FLUSH
break;
case '@' :
/*{{{ phantom box - prints next 'char', then restores currentpoint */
NEXT_FLUSH
p = NEXT_recurse(++p, FALSE, fontname, fontsize, base, FALSE);
break;
/*}}}*/
case '(' :
case ')' :
/* special cases */
NEXT_OPEN
NEXTPrintf("\\");
NEXTPrintf("%c",*p);
break;
/*}}}*/
case '\\' :
/*{{{ is it an escape */
/* special cases */
if (p[1]=='\\' || p[1]=='(' || p[1]==')')
{
NEXT_OPEN
NEXTPrintf("%c", '\\');
}
else if ((ch = p[1]) >= '0' && ch <= '7')
{
/* up to 3 octal digits */
NEXT_OPEN
NEXTPrintf("%c", '\\');
NEXTPrintf("%c", ch);
++p;
if ((ch = p[1]) >= '0' && ch <= '7')
{
NEXTPrintf("%c", ch);
++p;
if ((ch = p[1]) >= '0' && ch <= '7')
{
NEXTPrintf("%c", ch);
++p;
}
}
break;
}
++p;
/* just go and print it (fall into the 'default' case) */
/*}}}*/
default:
NEXT_OPEN
NEXTPrintf("%c", *p);
}
/* like TeX, we only do one character in a recursion, unless it's
* in braces
*/
if (!brace)
{
NEXT_FLUSH
return(p); /* the ++p in the outer copy will increment us */
}
}
NEXT_FLUSH
return p;
}
TERM_PUBLIC void NEXT_put_text(x, y, str)
unsigned int x, y;
char *str;
{
/* flush any pending graphics (all the XShow routines do this...) */
if (!strlen(str))
return;
if (NEXT_path_count)
{
NEXTPrintf(" stroke\n");
NEXT_path_count=0;
NEXT_relative_ok=FALSE;
}
NEXT_move(x,y);
if (NEXT_ang != 0)
NEXTPrintf("currentpoint gsave translate %d rotate 0 0 moveto\n",
NEXT_ang*90);
NEXTPrintf("[ ");
/* set up the globals */
NEXT_opened_string = FALSE;
NEXT_max_height = -1000;
NEXT_min_height = 1000;
while (*(str = NEXT_recurse(str, TRUE, NEXT_font,
(double)term->v_char,
0.0, TRUE)));
NEXT_max_height += NEXT_min_height;
NEXTPrintf( "] %.1f ", -NEXT_max_height/3);
switch(NEXT_justify)
{
case LEFT : NEXTPrintf( "MLshow\n");
break;
case CENTRE : NEXTPrintf( "MCshow\n");
break;
case RIGHT : NEXTPrintf( "MRshow\n");
break;
}
if (NEXT_ang != 0)
NEXTPrintf("grestore\n");
NEXT_path_count = 0;
NEXT_relative_ok=FALSE;
}
/* This just packs all the postscript into one (possibly huge) string
* which will be passed (as a fake pointer) via D.O. to the server
*/
void NEXTPrintf(char *fmt, ...)
{
va_list ap;
char *pb;
int NEXToff;
/* Process formatting instructions */
va_start(ap, fmt);
vsprintf(NEXTTmpBuf,fmt,ap);
va_end(ap);
/* Add to buffer */
for (pb=NEXTTmpBuf; (*pb != 0); ++pb, ++NEXTBufAt) {
/* reallocate if necessary */
if (NEXTBufAt >= NEXTBufEnd) {
NEXToff = NEXTBufAt - NEXTBuffer;
NEXTsize *=2;
NEXTBuffer = realloc(NEXTBuffer, NEXTsize);
NEXTBufEnd = NEXTBuffer + NEXTsize;
NEXTBufAt = NEXTBuffer + NEXToff;
}
*NEXTBufAt = *pb;
}
return;
}
/* This next section implements the GnuTermDriver object which manages
the D.O. connection and interface to OBjC
*/
@protocol GnuTermServerMethods
- (id) executePScode:(char *)PStext;
@end
@implementation GnuTermDriver
- init
{
NXConnection *myConnection;
char serverpath[100], *envstring;
int GnuTermPathSet=0;
/* Ask OS for connection to server */
server = [NXConnection connectToName:"gnuplotServer"];
/* Server is running ready to go */
if (server) printf("Connected to server\n");
/* Server isn't running, we must fire it up */
else {
*serverpath = 0;
/* Check for path set in environment */
if ((envstring = getenv("GNUTERMPATH")) != (char *) NULL) {
sprintf(serverpath, "%s/GnuTerm.app/GnuTerm", envstring);
GnuTermPathSet = 1;
}
/* Not in environment */
else strcpy(serverpath, "GnuTerm");
/* Try to launch application */
if ([[Application workspace] launchApplication:serverpath] == NO) {
printf("Failed to launch %s\n.", serverpath);
/* Offer a little advice */
if (GnuTermPathSet) {
printf("You must have setenv GNUTERMPATH to something wrong\n");
printf("I recommend you exit gnuplot and fix this.\n");
}
else {
printf("It must not be located ~/Apps or /LocalApps\n");
printf("I recommend either that you move GnuTerm.app one of these locations\n");
printf("or\n");
printf("host% setenv GNUTERMPATH /directory/containing/GnuTerm.app\n");
}
}
/* I wish the gnuplot terminal interface would
let me return an error here.
*/
/* Application is launching */
else {
/* Wait for it to register Server methods with OS */
do {
server = [NXConnection connectToName:"gnuplotServer"];
} while (!server); /* This could result in a hang,
but I've never seen it fail */
}
}
/* By limiting ourselves to known protocol
* we speed up the messaging
*/
[server setProtocolForProxy:@protocol(GnuTermServerMethods)];
myConnection = [server connectionForProxy];
/* If the server dies we want to know about it */
[myConnection registerForInvalidationNotification:self];
[NXPort worryAboutPortInvalidation];
return self;
}
- plot:(char *)PSstr;
{
/* If server has become invalid, re-initialize */
if (!server) [self init];
/* This is where we send the huge postscript string to the server
Note:
The D.O. system doesn't actually give this pointer to the server.
The pointer is dereferenced on the client side and the
resulting data is sent to the server. On the server side,
space for the data is automatically allocated, and a pointer to
the local data is received.
For details check out:
/NextLibrary/Documentation/NextDev/GeneralRef/06_DistributedObjects/IntroDistObjects.rtf
*/
[server executePScode:PSstr];
return self;
}
/* This gets called by OS if server goes down */
- senderIsInvalid:(id)sender
{
server = 0;
}
@end
#endif /* TERM_BODY */
#ifdef TERM_TABLE
TERM_TABLE_START(next_driver)
"next",
"Interface to GnuTerm.app under NeXTstep",
NEXT_XMAX, NEXT_YMAX, NEXT_VCHAR, NEXT_HCHAR,
NEXT_VTIC, NEXT_HTIC, NEXT_options, NEXT_init, NEXT_reset,
NEXT_text, null_scale, NEXT_graphics, NEXT_move, NEXT_vector,
NEXT_linetype, NEXT_put_text, NEXT_text_angle,
NEXT_justify_text, NEXT_point, do_arrow, NEXT_set_font,
NEXT_set_pointsize
TERM_TABLE_END(next_driver)
#undef LAST_TERM
#define LAST_TERM next_driver
#endif /* TERM_TABLE */
#endif /* TERM_PROTO_ONLY */
#ifdef TERM_HELP
START_HELP(next)
"1 next",
"?set terminal next",
"?next",
" Several options may be set in the next driver.",
"",
" Syntax:",
" set terminal next {<mode>} {<color>} {<dashed>} \\",
" {\"<fontname>\"} {<fontsize>}",
"",
" where <mode> is `default`.",
" Selecting default sets all options to their defaults.",
" <color> is either `color` or `monochrome`.",
" <dashed> is either `solid` or `dashed`.",
" \"<fontname>\" is the name of a valid PostScript font.",
" <fontsize> is the size of the font in PostScript points.",
" Defaults are `monochrome`, `dashed`, "Helvetica", and 14pt.",
"",
" Examples:",
"",
" set term next default # old postscript",
" set term next 22,"
" set term next color \"Times-Roman\" 14"
END_HELP(next)
#endif