--- /dev/null
+/* Hello, Emacs, this is -*-C-*-
+ * $Id: pslatex.trm,v 1.69.2.3 2009/05/11 21:47:30 sfeam Exp $
+ */
+
+/* GNUPLOT - pslatex.trm */
+
+/*[
+ * Copyright 1990 - 1993, 1998, 2004
+ *
+ * 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.
+]*/
+
+/*
+ * This file is included by ../term.c.
+ *
+ * This file supplies the terminal drivers:
+ * pslatex -- LaTeX with embedded postscript
+ * pstex -- plain TeX with embedded postscript
+ * epslatex -- LaTeX using \includegraphics, postscript part in an
+ * external file
+ *
+ * AUTHORS
+ * George Phillips
+ * Russell Lang
+ * David Kotz
+ *
+ * Petr Mikulik, May 2000: terminal entries for PM3D functionality
+ *
+ * Dan Sebald, 5 March 2003: terminal entry for image functionality
+ *
+ * Theo Hopman
+ * 23 May 2003:
+ * - added epslatex support. Replaces epslatex.trm; pointtype
+ * and linetypes for epslatex terminal are now identical to
+ * those of pslatex terminal.
+ * - added arbitrary text rotations to all [e]ps[la]tex
+ * terminals.
+ * 27 May 2004:
+ * - epslatex patch updated for gnuplot 4.0
+ *
+ * Harald Harders (h.harders@tu-bs.de), 2005-02-08:
+ * - Merged functionality of postscript, pslatex, pstex, and
+ * epslatex terminals. Therefore deleted epslatex.trm.
+ * - Added a standalone mode to the epslatex mode for standalone use without
+ * an additional LaTeX document.
+ * - Fixed text rotation of ps(la)tex terminals.
+ *
+ * Send your comments or suggestions to (gnuplot-info@lists.sourceforge.net).
+ */
+
+#include "driver.h"
+
+#ifdef TERM_REGISTER
+register_term(pslatex)
+register_term(pstex)
+register_term(epslatex)
+#endif
+
+#ifdef TERM_PROTO
+/* Common functions for epslatex and ps(la)tex */
+/* All these routines begin with PSLATEX_ */
+TERM_PUBLIC void PSLATEX_reset __PROTO((void));
+
+/* Functions for ps(la)tex */
+/* All these routines begin with PSTEX_ */
+TERM_PUBLIC void PSTEX_reopen_output __PROTO((void));
+TERM_PUBLIC void PSTEX_common_init __PROTO((void));
+TERM_PUBLIC void PSTEX_put_text __PROTO((unsigned int x, unsigned int y, const char *str));
+TERM_PUBLIC void PSTEX_text __PROTO((void));
+
+/* Functions for epslatex */
+/* All these routines begin with EPSLATEX_ */
+TERM_PUBLIC void EPSLATEX_reopen_output __PROTO((void));
+TERM_PUBLIC void EPSLATEX_common_init __PROTO((void));
+TERM_PUBLIC void EPSLATEX_put_text __PROTO((unsigned int x, unsigned int y, const char *str));
+TERM_PUBLIC void EPSLATEX_linetype __PROTO((int linetype));
+TERM_PUBLIC void EPSLATEX_layer __PROTO((t_termlayer syncpoint));
+
+/* additional LaTeX header information for epslatex terminal */
+TERM_PUBLIC char *epslatex_header = NULL;
+
+#endif /* TERM_PROTO */
+
+
+#ifndef TERM_PROTO_ONLY
+
+#ifdef TERM_BODY
+
+#include "post.h"
+
+struct pstex_text_command {
+ int x, y, angle, justify;
+ char *label;
+ struct pstex_text_command *next;
+};
+
+static struct pstex_text_command *pstex_labels = NULL;
+static int epslatex_text_layer = 0;
+
+/* Support for optimization of set_color */
+static t_colorspec tex_previous_colorspec = {-1, 0, 0.0}; /* Initialize to invalid type */
+static char tex_current_color[64];
+static TBOOLEAN tex_color_synced = FALSE;
+
+#define EPSLATEX_sync_color \
+ do { \
+ if (!tex_color_synced) { \
+ fputs(tex_current_color,gpoutfile); \
+ tex_color_synced = TRUE; \
+ } \
+ } while (0)
+
+/* Common functions for epslatex and ps(la)tex */
+
+TERM_PUBLIC void
+PSLATEX_reset()
+{
+ switch (ps_params->terminal) {
+ case PSTERM_EPSLATEX:
+ PS_reset();
+ if (gpoutfile) {
+ fprintf(gpoutfile, "\
+ \\gplbacktext\n\
+ \\put(0,0){\\includegraphics{%s}}%%\n\
+ \\gplfronttext\n\
+ \\end{picture}%%\n\
+\\endgroup\n", pslatex_auxname);
+ if (ps_params->epslatex_standalone)
+ fputs("\\end{document}\n", gpoutfile);
+ }
+ break;
+ case PSTERM_PSLATEX:
+ fputs("\
+\\end{picture}%\n\
+\\endgroup\n\
+\\endinput\n", gpoutfile);
+ break;
+ case PSTERM_PSTEX:
+ fputs("\
+\\endGNUPLOTpicture\n\
+\\endgroup\n\
+\\endinput\n", gpoutfile);
+ break;
+ default:; /* do nothing, just avoid a compiler warning */
+ }
+
+ if (pslatex_auxname) {
+ free(pslatex_auxname);
+ pslatex_auxname = NULL;
+ }
+ if (gppsfile && (gppsfile != gpoutfile)) {
+ fclose(gppsfile);
+ gppsfile = NULL;
+ }
+}
+
+
+/* Functions for ps(la)tex */
+
+TERM_PUBLIC void
+PSTEX_reopen_output()
+{
+ if (outstr) {
+ char *dotIndex;
+
+ /* if there's no extension, append ".ps" */
+ if ((dotIndex = strrchr(outstr, '.')) == NULL)
+ dotIndex = strchr(outstr, NUL);
+
+ /* try to open the auxiliary file for the postscript parts. */
+ if (ps_params->useauxfile) {
+ /* length of outstr plus ('.' or '\0') plus "eps" plus '\0' */
+ pslatex_auxname = gp_realloc(pslatex_auxname,dotIndex - outstr + 5,
+ "pslatex aux filename");
+ if (pslatex_auxname) {
+ /* include period or '\0' */
+ strncpy(pslatex_auxname, outstr, (dotIndex - outstr) + 1);
+ /* period or '\0' is overwritten with period, and "ps" appended */
+ strcpy(pslatex_auxname + (dotIndex - outstr), ".ps");
+ gppsfile = fopen(pslatex_auxname, "w");
+ if (gppsfile == (FILE *) NULL) {
+ fprintf(stderr, "Cannot open aux file %s for output. Switching off auxfile option.\n",
+ pslatex_auxname);
+ free(pslatex_auxname);
+ pslatex_auxname = NULL;
+ ps_params->useauxfile = FALSE;
+ gppsfile = gpoutfile;
+ }
+ } else {
+ fprintf(stderr, "Cannot make PostScript file name from %s\n",
+ outstr);
+ fprintf(stderr, "Turning off auxfile option\n");
+ ps_params->useauxfile = FALSE;
+ gppsfile = gpoutfile;
+ }
+ } else
+ gppsfile = gpoutfile;
+ } else {
+ if (ps_params->useauxfile) {
+ fprintf(stderr, "Cannot use aux file on stdout. Switching off auxfile option.\n");
+ ps_params->useauxfile = FALSE;
+ }
+ gppsfile = gpoutfile;
+ }
+}
+
+
+TERM_PUBLIC void
+PSTEX_common_init()
+{
+ switch (ps_params->terminal) {
+ case PSTERM_PSLATEX:
+ fprintf(gpoutfile,"\
+%% GNUPLOT: LaTeX picture with Postscript\n\
+\\begingroup%%\n\
+\\makeatletter%%\n\
+\\newcommand{\\GNUPLOTspecial}{%%\n\
+ \\@sanitize\\catcode`\\%%=14\\relax\\special}%%\n\
+\\setlength{\\unitlength}{%.4fbp}%%\n", 1.0 / (2*PS_SC));
+ fprintf(gpoutfile, "\\begin{picture}(%d,%d)(0,0)%%\n",
+ (int) (xsize * term->xmax), (int) (ysize * term->ymax));
+ break;
+ case PSTERM_PSTEX:
+ /* write plain TeX header */
+ fprintf(gpoutfile, "\
+%% GNUPLOT: plain TeX with Postscript\n\
+\\begingroup\n\
+\\catcode`\\@=11\\relax\n\
+\\def\\GNUPLOTspecial{%%\n\
+ \\def\\do##1{\\catcode`##1=12\\relax}\\dospecials\n\
+ \\catcode`\\{=1\\catcode`\\}=2\\catcode\\%%=14\\relax\\special}%%\n\
+%%\n\
+\\expandafter\\ifx\\csname GNUPLOTpicture\\endcsname\\relax\n\
+ \\csname newdimen\\endcsname\\GNUPLOTunit\n\
+ \\gdef\\GNUPLOTpicture(#1,#2){\\vbox to#2\\GNUPLOTunit\\bgroup\n\
+ \\def\\put(##1,##2)##3{\\unskip\\raise##2\\GNUPLOTunit\n\
+ \\hbox to0pt{\\kern##1\\GNUPLOTunit ##3\\hss}\\ignorespaces}%%\n\
+ \\def\\ljust##1{\\vbox to0pt{\\vss\\hbox to0pt{##1\\hss}\\vss}}%%\n\
+ \\def\\cjust##1{\\vbox to0pt{\\vss\\hbox to0pt{\\hss ##1\\hss}\\vss}}%%\n\
+ \\def\\rjust##1{\\vbox to0pt{\\vss\\hbox to0pt{\\hss ##1}\\vss}}%%\n\
+ \\def\\stack##1{\\let\\\\=\\cr\\tabskip=0pt\\halign{\\hfil ####\\hfil\\cr ##1\\crcr}}%%\n\
+ \\def\\lstack##1{\\hbox to0pt{\\vbox to0pt{\\vss\\stack{##1}}\\hss}}%%\n\
+ \\def\\cstack##1{\\hbox to0pt{\\hss\\vbox to0pt{\\vss\\stack{##1}}\\hss}}%%\n\
+ \\def\\rstack##1{\\hbox to0pt{\\vbox to0pt{\\stack{##1}\\vss}\\hss}}%%\n\
+ \\vss\\hbox to#1\\GNUPLOTunit\\bgroup\\ignorespaces}%%\n\
+ \\gdef\\endGNUPLOTpicture{\\hss\\egroup\\egroup}%%\n\
+\\fi\n\
+\\GNUPLOTunit=%.4fbp\n", 1.0 / (2*PS_SC));
+ fprintf(gpoutfile, "\\GNUPLOTpicture(%d,%d)\n",
+ (int) (xsize * term->xmax), (int) (ysize * term->ymax));
+ break;
+ default:; /* do nothing, just avoid a compiler warning */
+ }
+
+ if (gppsfile != gpoutfile) {
+ /* these are taken from the post.trm file computation
+ * of the bounding box, but without the X_OFF and Y_OFF */
+ int urx = (int) (xsize * term->xmax / (2*PS_SC) + 0.5);
+ int ury = (int) (ysize * term->ymax / (2*PS_SC) + 0.5);
+ /* moved this code here from beginning of the function
+ * pslatex_auxname is only != NULL with the `auxfile' option */
+ char *psfile_basename = strrchr(pslatex_auxname, DIRSEP1);
+
+ /* If pslatex_auxname is not a simple file name, but a path,
+ * we need to strip the path off the auxiliary file name,
+ * because tex file and ps aux file end up in the same directory! */
+ if (psfile_basename)
+ psfile_basename++;
+ else {
+#if DIRSEP2 != NUL
+ psfile_basename = strrchr(pslatex_auxname, DIRSEP2);
+ if (psfile_basename)
+ psfile_basename++;
+ else
+ psfile_basename = pslatex_auxname;
+#else
+ psfile_basename = pslatex_auxname;
+#endif
+ }
+
+ /* generate special which xdvi and dvips can handle */
+ fprintf(gpoutfile,
+ " \\special{psfile=%s llx=0 lly=0 urx=%d ury=%d rwi=%d}\n",
+ psfile_basename, urx, ury, 10 * urx);
+ } else
+ fputs(" {\\GNUPLOTspecial{\"\n", gpoutfile);
+
+ /* HH: really necessary?
+ ps_ang = 0;
+ ps_justify = 0;
+ */
+ pstex_labels = (struct pstex_text_command *) NULL;
+}
+
+
+TERM_PUBLIC void
+PSTEX_put_text(unsigned int x, unsigned int y, const char *str)
+{
+ struct pstex_text_command *tc;
+
+ /* ignore empty strings */
+ if (str[0] == NUL)
+ return;
+
+ /* Save the text for later printing after the core graphics */
+ tc = (struct pstex_text_command *) gp_alloc(sizeof(struct pstex_text_command),
+ term->name);
+ tc->x = x;
+ tc->y = y;
+ tc->label = (char *) gp_alloc(strlen(str) + 1, term->name);
+ strcpy(tc->label, str);
+ tc->justify = ps_justify;
+ tc->angle = ps_ang;
+
+ tc->next = pstex_labels;
+ pstex_labels = tc;
+}
+
+TERM_PUBLIC void
+PSTEX_text()
+{
+ struct pstex_text_command *tc;
+
+ PS_text();
+ if (gppsfile == gpoutfile)
+ fputs(" }}%\n", gpoutfile);
+
+ if (ps_params->fontsize) {
+ if (ps_params->terminal == PSTERM_PSLATEX)
+ fprintf(gpoutfile, "\\fontsize{%g}{\\baselineskip}\\selectfont\n",
+ ps_params->fontsize);
+ /* Should have an else clause here to handle pstex equivalent */
+ }
+
+ for (tc = pstex_labels;
+ tc != (struct pstex_text_command *) NULL;
+ tc = tc->next) {
+ fprintf(gpoutfile, " \\put(%d,%d){", tc->x, tc->y);
+ if ((ps_params->rotate) && (tc->angle != 0))
+ fprintf(gpoutfile, "\
+%%\n \\special{ps: gsave currentpoint currentpoint translate\n\
+%d rotate neg exch neg exch translate}%%\n ", 360 - tc->angle);
+ if ((ps_params->terminal == PSTERM_PSLATEX) &&
+ ((tc->label[0] == '{') || (tc->label[0] == '['))) {
+ fprintf(gpoutfile, "\\makebox(0,0)%s", tc->label);
+ } else
+ switch (tc->justify) {
+ case LEFT:
+ fprintf(gpoutfile, (ps_params->terminal == PSTERM_PSLATEX
+ ? "\\makebox(0,0)[l]{\\strut{}%s}"
+ : "\\ljust{\\strut{}%s}"), tc->label);
+ break;
+ case CENTRE:
+ fprintf(gpoutfile, (ps_params->terminal == PSTERM_PSLATEX
+ ? "\\makebox(0,0){\\strut{}%s}"
+ : "\\cjust{\\strut{}%s}"), tc->label);
+ break;
+ case RIGHT:
+ fprintf(gpoutfile, (ps_params->terminal == PSTERM_PSLATEX
+ ? "\\makebox(0,0)[r]{\\strut{}%s}"
+ : "\\rjust{\\strut{}%s}"), tc->label);
+ break;
+ }
+ if ((ps_params->rotate) && (tc->angle != 0))
+ fputs("%\n \\special{ps: currentpoint grestore moveto}%\n ",
+ gpoutfile);
+ fputs("}%\n", gpoutfile);
+ }
+
+ while (pstex_labels) {
+ tc = pstex_labels->next;
+ free(pstex_labels->label);
+ free(pstex_labels);
+ pstex_labels = tc;
+ }
+
+}
+
+
+/* Functions for epslatex */
+
+/* the common init function for the epslatex driver */
+TERM_PUBLIC void
+EPSLATEX_common_init()
+{
+ char *fontfamily = NULL;
+ char *fontseries = NULL;
+ char *fontshape = NULL;
+
+ if (!gpoutfile) {
+ char *temp = gp_alloc(strlen(outstr) + 1, "temp file string");
+ if (temp) {
+ strcpy(temp, outstr);
+ term_set_output(temp); /* will free outstr */
+ if (temp != outstr) {
+ if (temp)
+ free(temp);
+ temp = outstr;
+ }
+ } else
+ os_error(c_token, "Cannot reopen output files");
+ }
+ if (!outstr)
+ os_error(c_token,
+ "epslatex terminal cannot write to standard output");
+ if (gpoutfile) {
+ char *inputenc = NULL;
+
+ fprintf(gpoutfile, "%% GNUPLOT: LaTeX picture with Postscript\n");
+
+ switch(encoding) {
+ case S_ENC_DEFAULT:
+ break;
+ case S_ENC_ISO8859_1:
+ inputenc = "latin1";
+ break;
+ case S_ENC_ISO8859_2:
+ inputenc = "latin2";
+ break;
+ case S_ENC_ISO8859_15:
+ inputenc = "latin9";
+ break;
+ case S_ENC_CP437:
+ inputenc = "cp437de";
+ break;
+ case S_ENC_CP850:
+ inputenc = "cp850";
+ break;
+ case S_ENC_CP852:
+ inputenc = "cp852";
+ break;
+ case S_ENC_CP1250:
+ inputenc = "cp1250";
+ break;
+ case S_ENC_KOI8_R:
+ inputenc = "koi8-r";
+ break;
+ case S_ENC_KOI8_U:
+ inputenc = "koi8-u";
+ break;
+ case S_ENC_INVALID:
+ int_error(NO_CARET, "invalid input encoding used");
+ break;
+ default:
+ /* do nothing */
+ break;
+ }
+
+ /* Clear previous state */
+ tex_previous_colorspec.type = -1;
+
+ /* Clear any leftover text-layering state */
+ EPSLATEX_layer(TERM_LAYER_RESET);
+
+ /* Analyse LaTeX font name 'family,series,shape' */
+ if ((strlen(ps_params->font) > 0) &&
+ (strcmp(ps_params->font,"default") != 0)) {
+ char *comma = NULL;
+ fontfamily = gp_alloc(strlen(ps_params->font)+1,
+ "EPSLATEX_common_init");
+ fontseries = gp_alloc(strlen(ps_params->font)+1,
+ "EPSLATEX_common_init");
+ fontshape = gp_alloc(strlen(ps_params->font)+1,
+ "EPSLATEX_common_init");
+ strcpy(fontfamily,ps_params->font);
+ *fontseries = '\0';
+ *fontshape = '\0';
+ if ((comma = strchr(fontfamily, ',')) != NULL) {
+ *comma = '\0';
+ strcpy(fontseries,comma+1);
+ if ((comma = strchr(fontseries, ',')) != NULL) {
+ *comma = '\0';
+ strcpy(fontshape,comma+1);
+ }
+ }
+ }
+
+ if (ps_params->epslatex_standalone) {
+ fprintf(gpoutfile, "\
+\\documentclass{minimal}\n\
+%% Set font size\n\
+\\makeatletter\n\
+\\def\\@ptsize{%d}\n\
+\\InputIfFileExists{size%d.clo}{}{%%\n\
+ \\GenericError{(gnuplot) \\space\\space\\space\\@spaces}{%%\n\
+ Gnuplot Error: File `size%d.clo' not found! Could not set font size%%\n\
+ }{See the gnuplot documentation for explanation.%%\n\
+ }{For using a font size a file `size<fontsize>.clo' has to exist.\n\
+ Falling back ^^Jto default fontsize 10pt.}%%\n\
+ \\def\\@ptsize{0}\n\
+ \\input{size10.clo}%%\n\
+}%%\n\
+\\makeatother\n",
+ (int)(ps_params->fontsize-10),
+ (int)(ps_params->fontsize),
+ (int)(ps_params->fontsize));
+
+ if (fontfamily && strlen(fontfamily) > 0)
+ fprintf(gpoutfile, "\\renewcommand*\\rmdefault{%s}%%\n",
+ fontfamily);
+ if (fontseries && strlen(fontseries) > 0)
+ fprintf(gpoutfile, "\\renewcommand*\\mddefault{%s}%%\n",
+ fontseries);
+ if (fontshape && strlen(fontshape) > 0)
+ fprintf(gpoutfile, "\\renewcommand*\\updefault{%s}%%\n",
+ fontshape);
+
+ fputs("\
+% Load packages\n\
+\\usepackage{graphicx}\n\
+\\usepackage{color}\n", gpoutfile);
+
+ if (inputenc)
+ fprintf(gpoutfile, "\\usepackage[%s]{inputenc}\n", inputenc);
+
+ fprintf(gpoutfile, "\
+\\makeatletter\n\
+%% Select an appropriate default driver (from TeXLive graphics.cfg)\n\
+\\begingroup\n\
+ \\chardef\\x=0 %%\n\
+ %% check pdfTeX\n\
+ \\@ifundefined{pdfoutput}{}{%%\n\
+ \\ifcase\\pdfoutput\n\
+ \\else\n\
+ \\chardef\\x=1 %%\n\
+ \\fi\n\
+ }%%\n\
+ %% check VTeX\n\
+ \\@ifundefined{OpMode}{}{%%\n\
+ \\chardef\\x=2 %%\n\
+ }%%\n\
+\\expandafter\\endgroup\n\
+\\ifcase\\x\n\
+ %% default case\n\
+ \\PassOptionsToPackage{dvips}{geometry}\n\
+\\or\n\
+ %% pdfTeX is running in pdf mode\n\
+ \\PassOptionsToPackage{pdftex}{geometry}\n\
+\\else\n\
+ %% VTeX is running\n\
+ \\PassOptionsToPackage{vtex}{geometry}\n\
+\\fi\n\
+\\makeatother\n\
+%% Set papersize\n\
+\\usepackage[papersize={%.2fbp,%.2fbp},text={%.2fbp,%.2fbp}]{geometry}\n\
+%% No page numbers and no paragraph indentation\n\
+\\pagestyle{empty}\n\
+\\setlength{\\parindent}{0bp}%%\n\
+%% Load configuration file\n\
+\\InputIfFileExists{gnuplot.cfg}{%%\n\
+ \\typeout{Using configuration file gnuplot.cfg}%%\n\
+}{%%\n\
+ \\typeout{No configuration file gnuplot.cfg found.}%%\n\
+}%%\n\
+%s\n\
+\\begin{document}\n",
+ term->xmax * xsize / (2.0*PS_SC),
+ term->ymax * ysize / (2.0*PS_SC),
+ term->xmax * xsize / (2.0*PS_SC),
+ term->ymax * ysize / (2.0*PS_SC),
+ epslatex_header ? epslatex_header : "%" );
+ }
+
+ fputs("\\begingroup\n", gpoutfile);
+
+ if (inputenc)
+ fprintf(gpoutfile, "\
+ %% Encoding inside the plot. In the header of your document, this encoding\n\
+ %% should to defined, e.g., by using\n\
+ %% \\usepackage[%s,<other encodings>]{inputenc}\n\
+ \\inputencoding{%s}%%\n", inputenc, inputenc);
+
+ if (!ps_params->epslatex_standalone) {
+ if (fontfamily && strlen(fontfamily) > 0)
+ fprintf(gpoutfile, " \\fontfamily{%s}%%\n",
+ fontfamily);
+ if (fontseries && strlen(fontseries) > 0)
+ fprintf(gpoutfile, " \\fontseries{%s}%%\n",
+ fontseries);
+ if (fontshape && strlen(fontshape) > 0)
+ fprintf(gpoutfile, " \\fontshape{%s}%%\n",
+ fontshape);
+ if (fontfamily || fontseries || fontshape)
+ fputs(" \\selectfont\n", gpoutfile);
+ if (epslatex_header)
+ fprintf(gpoutfile, "%s\n", epslatex_header );
+ }
+
+ fprintf(gpoutfile, "\
+ \\makeatletter\n\
+ \\providecommand\\color[2][]{%%\n\
+ \\GenericError{(gnuplot) \\space\\space\\space\\@spaces}{%%\n\
+ Package color not loaded in conjunction with\n\
+ terminal option `colourtext'%%\n\
+ }{See the gnuplot documentation for explanation.%%\n\
+ }{Either use 'blacktext' in gnuplot or load the package\n\
+ color.sty in LaTeX.}%%\n\
+ \\renewcommand\\color[2][]{}%%\n\
+ }%%\n\
+ \\providecommand\\includegraphics[2][]{%%\n\
+ \\GenericError{(gnuplot) \\space\\space\\space\\@spaces}{%%\n\
+ Package graphicx or graphics not loaded%%\n\
+ }{See the gnuplot documentation for explanation.%%\n\
+ }{The gnuplot epslatex terminal needs graphicx.sty or graphics.sty.}%%\n\
+ \\renewcommand\\includegraphics[2][]{}%%\n\
+ }%%\n\
+ \\providecommand\\rotatebox[2]{#2}%%\n\
+ \\@ifundefined{ifGPcolor}{%%\n\
+ \\newif\\ifGPcolor\n\
+ \\GPcolor%s\n\
+ }{}%%\n\
+ \\@ifundefined{ifGPblacktext}{%%\n\
+ \\newif\\ifGPblacktext\n\
+ \\GPblacktext%s\n\
+ }{}%%\n\
+ %% define a \\g@addto@macro without @ in the name:\n\
+ \\let\\gplgaddtomacro\\g@addto@macro\n\
+ %% define empty templates for all commands taking text:\n\
+ \\gdef\\gplbacktext{}%%\n\
+ \\gdef\\gplfronttext{}%%\n\
+ \\makeatother\n",
+ (ps_params->color?"true":"false"),
+ (ps_params->blacktext?"true":"false") );
+
+ /* use \expandafter\def\csname LT0\endcsname{...}
+ * instead of \def\LT0{...} because digits may not be part of
+ * \... sequences */
+ fputs("\
+ \\ifGPblacktext\n\
+ % no textcolor at all\n\
+ \\def\\colorrgb#1{}%\n\
+ \\def\\colorgray#1{}%\n\
+ \\else\n\
+ % gray or color?\n\
+ \\ifGPcolor\n\
+ \\def\\colorrgb#1{\\color[rgb]{#1}}%\n\
+ \\def\\colorgray#1{\\color[gray]{#1}}%\n\
+ \\expandafter\\def\\csname LTw\\endcsname{\\color{white}}%\n\
+ \\expandafter\\def\\csname LTb\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LTa\\endcsname{\\color{black}}%\n",
+ gpoutfile);
+ if (ps_params->oldstyle) {
+ fputs("\
+ \\expandafter\\def\\csname LT0\\endcsname{\\color[rgb]{1,0,0}}%\n\
+ \\expandafter\\def\\csname LT1\\endcsname{\\color[rgb]{0,0,1}}%\n\
+ \\expandafter\\def\\csname LT2\\endcsname{\\color[rgb]{0,1,1}}%\n\
+ \\expandafter\\def\\csname LT3\\endcsname{\\color[rgb]{1,0,1}}%\n",
+ gpoutfile);
+ } else {
+ fputs("\
+ \\expandafter\\def\\csname LT0\\endcsname{\\color[rgb]{1,0,0}}%\n\
+ \\expandafter\\def\\csname LT1\\endcsname{\\color[rgb]{0,1,0}}%\n\
+ \\expandafter\\def\\csname LT2\\endcsname{\\color[rgb]{0,0,1}}%\n\
+ \\expandafter\\def\\csname LT3\\endcsname{\\color[rgb]{1,0,1}}%\n\
+ \\expandafter\\def\\csname LT4\\endcsname{\\color[rgb]{0,1,1}}%\n\
+ \\expandafter\\def\\csname LT5\\endcsname{\\color[rgb]{1,1,0}}%\n\
+ \\expandafter\\def\\csname LT6\\endcsname{\\color[rgb]{0,0,0}}%\n\
+ \\expandafter\\def\\csname LT7\\endcsname{\\color[rgb]{1,0.3,0}}%\n\
+ \\expandafter\\def\\csname LT8\\endcsname{\\color[rgb]{0.5,0.5,0.5}}%\n",
+ gpoutfile);
+ }
+ fputs("\
+ \\else\n\
+ % gray\n\
+ \\def\\colorrgb#1{\\color{black}}%\n\
+ \\def\\colorgray#1{\\color[gray]{#1}}%\n\
+ \\expandafter\\def\\csname LTw\\endcsname{\\color{white}}%\n\
+ \\expandafter\\def\\csname LTb\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LTa\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT0\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT1\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT2\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT3\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT4\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT5\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT6\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT7\\endcsname{\\color{black}}%\n\
+ \\expandafter\\def\\csname LT8\\endcsname{\\color{black}}%\n\
+ \\fi\n\
+ \\fi\n", gpoutfile);
+
+ fprintf(gpoutfile,"\
+ \\setlength{\\unitlength}{%.4fbp}%%\n\
+ \\begin{picture}(%.2f,%.2f)%%\n",
+ 1.0 / (2*PS_SC), term->xmax * xsize, term->ymax * ysize);
+ }
+
+ if (fontfamily)
+ free(fontfamily);
+ if (fontseries)
+ free(fontseries);
+ if (fontshape)
+ free(fontshape);
+}
+
+
+TERM_PUBLIC void
+EPSLATEX_put_text(unsigned int x, unsigned int y, const char *str)
+{
+ if (gpoutfile) {
+ EPSLATEX_sync_color;
+ fprintf(gpoutfile, " \\put(%d,%d){", x, y);
+ if (ps_ang)
+ fprintf(gpoutfile,"\\rotatebox{%d}{", ps_ang);
+ if (((str[0] == '{') || (str[0] == '['))) {
+ fprintf(gpoutfile, "\\makebox(0,0)%s", str);
+ } else
+ switch (ps_justify) {
+ case LEFT:
+ fprintf(gpoutfile, "\\makebox(0,0)[l]{\\strut{}%s}", str);
+ break;
+ case CENTRE:
+ fprintf(gpoutfile, "\\makebox(0,0){\\strut{}%s}", str);
+ break;
+ case RIGHT:
+ fprintf(gpoutfile, "\\makebox(0,0)[r]{\\strut{}%s}", str);
+ break;
+ }
+ if (ps_ang) {
+ fputs("}", gpoutfile);
+ }
+ fputs("}%\n", gpoutfile);
+ }
+}
+
+
+/* assigns dest to outstr, so it must be allocated or NULL
+ * and it must not be outstr itself !
+ */
+void
+EPSLATEX_reopen_output()
+{
+ char *psoutstr = NULL;
+
+ if (outstr) {
+ unsigned int outstrlen = strlen(outstr);
+ if (strrchr(outstr, '.') != &outstr[outstrlen-4] ) {
+ int_error(NO_CARET,
+ "epslatex outputfile may not have dots inside %s",
+ "their filenames before the extension .tex or .eps");
+ }
+
+ /* copy filename to postsript output */
+ psoutstr = gp_alloc(outstrlen+5, "epslatex eps filename");
+ strcpy( psoutstr, outstr);
+
+ if ((!strncmp( &outstr[outstrlen-4], ".eps", 4 )) ||
+ (!strncmp( &outstr[outstrlen-4], ".EPS", 4 ))) {
+ if (ps_params->epslatex_standalone)
+ int_error(NO_CARET,
+ "For epslatex standalone mode, you have to %s",
+ "give the tex filename as output");
+ /* rename primary output (tex) */
+ strncpy( &outstr[outstrlen-4], ".tex", 4);
+ /* redirect FILE stream */
+ gppsfile = gpoutfile;
+ gpoutfile = fopen(outstr,"w");
+ int_warn(NO_CARET, "Resetting primary output file to %s,\n\
+ PostScript output to %s", outstr, psoutstr);
+ if (!gpoutfile)
+ int_error(NO_CARET, "--- reopen failed");
+ } else {
+ if (ps_params->epslatex_standalone)
+ strncpy( &psoutstr[outstrlen-4], "-inc.eps", 9);
+ else
+ strncpy( &psoutstr[outstrlen-4], ".eps", 4);
+ gppsfile = fopen(psoutstr,"w");
+ }
+ if (!gppsfile)
+ int_error(NO_CARET, "open of postscipt output file %s failed",
+ psoutstr);
+
+ /* set the name for the \includegraphics command */
+ pslatex_auxname = gp_alloc(strlen(psoutstr)-3,
+ "epslatex TeX filename");
+ strncpy( pslatex_auxname, psoutstr, strlen(psoutstr)-4 );
+ pslatex_auxname[strlen(psoutstr)-4] = '\0';
+
+ free(psoutstr);
+ }
+}
+
+
+TERM_PUBLIC void
+EPSLATEX_set_color(t_colorspec *colorspec)
+{
+ double gray;
+
+ /* EAM Jul 2006 - Filter out duplicate requests */
+ if (!memcmp(&tex_previous_colorspec, colorspec, sizeof(t_colorspec)))
+ return;
+ else
+ memcpy(&tex_previous_colorspec, colorspec, sizeof(t_colorspec));
+
+ /* Fancy footwork to deal with mono/grayscale plots */
+ if (colorspec->type == TC_LT && !ps_params->color)
+ PS_linetype(colorspec->lt);
+ else
+ PS_set_color(colorspec);
+
+ /* Many [most? all?] of the set_color commands only affect the *.eps */
+ /* output stream. So rather than printing them all to the *.tex stream, */
+ /* we update the current color and set a flag to say it has changed. */
+ /* Only when some TeX object is output do we sync the current color by */
+ /* writing it out. */
+ tex_color_synced = FALSE;
+
+ if (colorspec->type == TC_RGB) {
+ double r = (double)((colorspec->lt >> 16 ) & 255) / 255.;
+ double g = (double)((colorspec->lt >> 8 ) & 255) / 255.;
+ double b = (double)(colorspec->lt & 255) / 255.;
+ sprintf(tex_current_color, " \\colorrgb{%3.2f,%3.2f,%3.2f}%%\n",r,g,b);
+ }
+
+ if (colorspec->type == TC_LT) {
+ int linetype = colorspec->lt;
+ if (ps_params->oldstyle)
+ linetype = (linetype % 4) + 3;
+ else
+ linetype = (linetype % 9) + 3;
+
+ sprintf(tex_current_color, " \\csname LT%c\\endcsname%%\n",
+ "wba012345678"[linetype]);
+ }
+
+ if (colorspec->type != TC_FRAC)
+ return;
+
+/* map [0;1] to gray/colors */
+ gray = colorspec->value;
+
+ if (ps_params->blacktext) {
+ if (gray <= 0)
+ sprintf(tex_current_color, " \\color{black}%%\n");
+ else if (gray >= 1)
+ sprintf(tex_current_color, " \\color{white}%%\n");
+ else
+ sprintf(tex_current_color, " \\colorgray{%s}%%\n",save_space(gray));
+ } else {
+ rgb_color color;
+ rgb1_from_gray( colorspec->value, &color );
+ sprintf(tex_current_color, " \\colorrgb{%3.2f,%3.2f,%3.2f}%%\n",color.r,color.g,color.b);
+ }
+}
+
+TERM_PUBLIC void
+EPSLATEX_linetype(int linetype)
+{
+ t_colorspec tempcol = {TC_LT, 0, 0.0};
+ tempcol.lt = linetype;
+ PS_linetype(linetype);
+
+ /* This leads to redundant *.eps output */
+ EPSLATEX_set_color(&tempcol);
+}
+
+/*
+ * The TERM_LAYER mechanism is used here to signal a difference between
+ * "front" text and "back" text.
+ */
+TERM_PUBLIC void
+EPSLATEX_layer(t_termlayer syncpoint)
+{
+ switch (syncpoint) {
+
+ case TERM_LAYER_RESET: /* Start of plot; reset flag */
+ epslatex_text_layer = 0;
+ break;
+
+ case TERM_LAYER_BACKTEXT: /* Start of "back" text layer */
+ if (epslatex_text_layer == 1)
+ break;
+ if (epslatex_text_layer == 2)
+ fputs(" }%\n", gpoutfile);
+ epslatex_text_layer = 1;
+ fputs(" \\gplgaddtomacro\\gplbacktext{%\n", gpoutfile);
+ break;
+
+ case TERM_LAYER_FRONTTEXT:/* Start of "front" text layer */
+ if (epslatex_text_layer == 2)
+ break;
+ if (epslatex_text_layer == 1)
+ fputs(" }%\n", gpoutfile);
+ epslatex_text_layer = 2;
+ fputs(" \\gplgaddtomacro\\gplfronttext{%\n", gpoutfile);
+ break;
+
+ case TERM_LAYER_END_TEXT: /* Close off front or back macro before leaving */
+ if (epslatex_text_layer == 1 || epslatex_text_layer == 2)
+ fputs(" }%\n", gpoutfile);
+ epslatex_text_layer = 0;
+ break;
+
+ default:
+ break;
+ }
+}
+
+#endif /* TERM_BODY */
+
+#ifdef TERM_TABLE
+
+#ifndef GOT_POST_PROTO
+#define TERM_PROTO_ONLY
+#include "post.trm"
+#undef TERM_PROTO_ONLY
+#endif /* GOT_POST_PROTO */
+
+TERM_TABLE_START(epslatex_driver)
+ "epslatex", "LaTeX picture environment using graphicx package",
+ PS_XMAX, PS_YMAX, EPSLATEX_VCHAR, EPSLATEX_HCHAR,
+ PS_VTIC, PS_HTIC, PS_options, PS_init, PSLATEX_reset,
+ PS_text, null_scale, PS_graphics, PS_move,
+ PS_vector, EPSLATEX_linetype, EPSLATEX_put_text, PS_text_angle,
+ PS_justify_text, PS_point, do_arrow, PS_set_font,
+ PS_pointsize, TERM_BINARY|TERM_IS_POSTSCRIPT|TERM_CAN_CLIP /*flags */,
+ 0 /*suspend */, 0 /*resume */,
+ PS_fillbox, PS_linewidth,
+#ifdef USE_MOUSE
+ 0, 0, 0, 0, 0, /* no mouse support for postscript */
+#endif
+ PS_make_palette, PS_previous_palette,
+ EPSLATEX_set_color, PS_filled_polygon,
+#ifdef WITH_IMAGE
+ PS_image,
+#endif
+ 0, 0, 0, /* Enhanced text mode not used */
+ EPSLATEX_layer, /* Used to signal front/back text */
+ PS_path
+TERM_TABLE_END(epslatex_driver)
+#undef LAST_TERM
+#define LAST_TERM epslatex_driver
+
+TERM_TABLE_START(pslatex_driver)
+ "pslatex", "LaTeX picture environment with PostScript \\specials",
+ PS_XMAX, PS_YMAX, PSTEX_VCHAR, PSTEX_HCHAR,
+ PS_VTIC, PS_HTIC, PS_options, PS_init, PSLATEX_reset,
+ PSTEX_text, null_scale, PS_graphics, PS_move,
+ PS_vector, PS_linetype, PSTEX_put_text, PS_text_angle,
+ PS_justify_text, PS_point, PS_arrow, set_font_null,
+ PS_pointsize, TERM_CAN_CLIP /*flags */ , 0 /*suspend */
+ , 0 /*resume */ ,
+ PS_fillbox, PS_linewidth
+#ifdef USE_MOUSE
+ , 0, 0, 0, 0, 0 /* no mouse support for postscript */
+#endif
+ , PS_make_palette,
+ PS_previous_palette, /* write grestore */
+ PS_set_color,
+ PS_filled_polygon
+#ifdef WITH_IMAGE
+ , PS_image
+ , 0, 0, 0 /* No enhanced text mode because this is LaTeX */
+ , 0 /* layer */
+ , PS_path
+#endif
+TERM_TABLE_END(pslatex_driver)
+#undef LAST_TERM
+#define LAST_TERM pslatex_driver
+
+TERM_TABLE_START(pstex_driver)
+ "pstex", "plain TeX with PostScript \\specials",
+ PS_XMAX, PS_YMAX, PSTEX_VCHAR, PSTEX_HCHAR,
+ PS_VTIC, PS_HTIC, PS_options, PS_init, PSLATEX_reset,
+ PSTEX_text, null_scale, PS_graphics, PS_move,
+ PS_vector, PS_linetype, PSTEX_put_text, PS_text_angle,
+ PS_justify_text, PS_point, PS_arrow, set_font_null,
+ PS_pointsize, TERM_CAN_CLIP /*flags */ , 0 /*suspend */
+ , 0 /*resume */ ,
+ PS_fillbox, PS_linewidth
+#ifdef USE_MOUSE
+ , 0, 0, 0, 0, 0 /* no mouse support for postscript */
+#endif
+ , PS_make_palette,
+ PS_previous_palette, /* write grestore */
+ PS_set_color,
+ PS_filled_polygon
+#ifdef WITH_IMAGE
+ , PS_image
+#endif
+ , 0, 0, 0 /* No enhanced text mode because this is LaTeX */
+ , 0 /* layer */
+ , PS_path
+TERM_TABLE_END(pstex_driver)
+#undef LAST_TERM
+#define LAST_TERM pstex_driver
+
+#endif /* TERM_TABLE */
+#endif /* TERM_PROTO_ONLY */
+
+
projects / gnuplot / blobdiff