1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 /* 31 * 32 * PostScript picture inclusion routines. Support for managing in-line pictures 33 * has been added, and works in combination with the simple picpack pre-processor 34 * that's supplied with this package. An in-line picture begins with a special 35 * device control command that looks like, 36 * 37 * x X InlinPicture name size 38 * 39 * where name is the pathname of the original picture file and size is the number 40 * of bytes in the picture, which begins immediately on the next line. When dpost 41 * encounters the InlinePicture device control command inlinepic() is called and 42 * that routine appends the string name and the integer size to a temporary file 43 * (fp_pic) and then adds the next size bytes read from the current input file to 44 * file fp_pic. All in-line pictures are saved in fp_pic and located later using 45 * the name string and picture file size that separate pictures saved in fp_pic. 46 * 47 * When a picture request (ie. an "x X PI" command) is encountered picopen() is 48 * called and it first looks for the picture file in fp_pic. If it's found there 49 * the entire picture (ie. size bytes) is copied from fp_pic to a new temp file 50 * and that temp file is used as the picture file. If there's nothing in fp_pic 51 * or if the lookup failed the original route is taken. 52 * 53 * Support for in-line pictures is an attempt to address requirements, expressed 54 * by several orginazations, of being able to store a document as a single file 55 * (usually troff input) that can then be sent through dpost and ultimately to 56 * a PostScript printer. The mechanism may help some users, but the are obvious 57 * disadvantages to this approach, and the original mechanism is the recommended 58 * approach! Perhaps the most important problem is that troff output, with in-line 59 * pictures included, doesn't fit the device independent language accepted by 60 * important post-processors (like proff) and that means you won't be able to 61 * reliably preview a packed file on your 5620 (or whatever). 62 * 63 */ 64 65 66 #include <stdio.h> 67 68 #include "comments.h" /* PostScript file structuring comments */ 69 #include "gen.h" /* general purpose definitions */ 70 #include "path.h" /* just for TEMPDIR definition */ 71 72 73 FILE *fp_pic = NULL; /* in-line pictures go here */ 74 FILE *picopen(); 75 76 extern int res, hpos, vpos; 77 extern int picflag; 78 extern FILE *tf; 79 80 static void piccopy(FILE *, FILE *, long); 81 82 /*****************************************************************************/ 83 84 85 void 86 picture(char *buf) 87 /* stuff following 'x X PI' command */ 88 { 89 int poffset; /* page offset */ 90 int indent; /* indent */ 91 int length; /* line length */ 92 int totrap; /* distance to next trap */ 93 char name[100]; /* picture file and page string */ 94 char hwo[40], *p; /* height, width and offset strings */ 95 char flags[20]; /* miscellaneous stuff */ 96 int page = 1; /* page number pulled from name[] */ 97 double frame[4]; /* height, width, y, and x offsets from hwo[] */ 98 char units; /* scale indicator for frame dimensions */ 99 int whiteout = 0; /* white out the box? */ 100 int outline = 0; /* draw a box around the picture? */ 101 int scaleboth = 0; /* scale both dimensions? */ 102 double adjx = 0.5; /* left-right adjustment */ 103 double adjy = 0.5; /* top-bottom adjustment */ 104 double rot = 0; /* rotation in clockwise degrees */ 105 FILE *fp_in; /* for *name */ 106 int i; /* loop index */ 107 108 char *strchr(); 109 110 111 /* 112 * 113 * Called from devcntrl() after an 'x X PI' command is found. The syntax of that 114 * command is: 115 * 116 * x X PI:args 117 * 118 * with args separated by colons and given by: 119 * 120 * poffset 121 * indent 122 * length 123 * totrap 124 * file[(page)] 125 * height[,width[,yoffset[,xoffset]]] 126 * [flags] 127 * 128 * poffset, indent, length, and totrap are given in machine units. height, width, 129 * and offset refer to the picture frame in inches, unless they're followed by 130 * the u scale indicator. flags is a string that provides a little bit of control 131 * over the placement of the picture in the frame. Rotation of the picture, in 132 * clockwise degrees, is set by the a flag. If it's not followed by an angle 133 * the current rotation angle is incremented by 90 degrees, otherwise the angle 134 * is set by the number that immediately follows the a. 135 * 136 */ 137 138 139 if ( picflag == OFF ) /* skip it */ 140 return; 141 142 endtext(); 143 144 flags[0] = '\0'; /* just to be safe */ 145 if ( sscanf(buf, "%d:%d:%d:%d:%[^:]:%[^:]:%[^:]", &poffset, &indent, 146 &length, &totrap, name, hwo, flags) < 6 ) { 147 error(NON_FATAL, "too few arguments to specify picture"); 148 return; 149 } /* End if */ 150 151 if ( sscanf(name, "%*[^(](%d", &page) == 1 ) /* grab the page number */ 152 strtok(name, "("); /* and separate it from the name */ 153 154 if ( (fp_in = picopen(name)) == NULL ) { 155 error(NON_FATAL, "can't open picture file %s", name); 156 return; 157 } /* End if */ 158 159 frame[0] = frame[1] = -1; /* default frame height, width */ 160 frame[2] = frame[3] = 0; /* and y and x offsets */ 161 162 for ( i = 0, p = hwo-1; i < 4 && p != NULL; i++, p = strchr(p, ',') ) 163 if ( sscanf(++p, "%lf%c", &frame[i], &units) == 2 ) 164 if ( units == 'i' || units == ',' || units == '\0' ) 165 frame[i] *= res; 166 167 if ( frame[0] <= 0 ) /* check what we got for height */ 168 frame[0] = totrap; 169 170 if ( frame[1] <= 0 ) /* and width - check too big?? */ 171 frame[1] = length - indent; 172 173 frame[3] += poffset + indent; /* real x offset */ 174 175 for ( i = 0; flags[i]; i++ ) 176 switch ( flags[i] ) { 177 case 'c': adjx = adjy = 0.5; break; /* move to the center */ 178 case 'l': adjx = 0; break; /* left */ 179 case 'r': adjx = 1; break; /* right */ 180 case 't': adjy = 1; break; /* top */ 181 case 'b': adjy = 0; break; /* or bottom justify */ 182 case 'o': outline = 1; break; /* outline the picture */ 183 case 'w': whiteout = 1; break; /* white out the box */ 184 case 's': scaleboth = 1; break; /* scale both dimensions */ 185 case 'a': if ( sscanf(&flags[i+1], "%lf", &rot) != 1 ) 186 rot += 90; 187 } /* End switch */ 188 189 fprintf(tf, "cleartomark restore\n"); 190 191 ps_include(fp_in, tf, page, whiteout, outline, scaleboth, 192 frame[3]+frame[1]/2, -vpos-frame[2]-frame[0]/2, frame[1], frame[0], adjx, adjy, -rot); 193 194 fprintf(tf, "save mark\n"); 195 xymove(hpos, vpos); 196 t_sf(); 197 198 fclose(fp_in); 199 200 } /* End of picture */ 201 202 203 /*****************************************************************************/ 204 205 206 FILE * 207 picopen(char *path) 208 /* picture file pathname */ 209 { 210 char name[100]; /* pathnames */ 211 long total; /* and sizes - from *fp_pic */ 212 char *tname; /* pathname */ 213 FILE *fp; /* and pointer for the new temp file */ 214 215 216 /* 217 * 218 * Responsible for finding and opening the next picture file. If we've accumulated 219 * any in-line pictures fp_pic won't be NULL and we'll look there first. If *path 220 * is found in *fp_pic we create another temp file, open it for update, unlink it, 221 * copy in the picture, seek back to the start of the new temp file, and return 222 * the file pointer to the caller. If fp_pic is NULL or the lookup fails we just 223 * open file *path and return the resulting file pointer to the caller. 224 * 225 */ 226 227 228 if ( fp_pic != NULL ) { 229 fseek(fp_pic, 0L, 0); 230 while ( fscanf(fp_pic, "%s %ld\n", name, &total) != EOF ) { 231 if ( strcmp(path, name) == 0 ) { 232 if ( (tname = tempnam(TEMPDIR, "dpost")) == NULL ) 233 error(FATAL, "can't generate temp file name"); 234 if ( (fp = fopen(tname, "w+")) == NULL ) 235 error(FATAL, "can't open %s", tname); 236 unlink(tname); 237 free(tname); 238 piccopy(fp_pic, fp, total); 239 fseek(fp, 0L, 0); 240 return(fp); 241 } /* End if */ 242 fseek(fp_pic, total, 1); 243 } /* End while */ 244 } /* End if */ 245 246 return(fopen(path, "r")); 247 248 } /* End of picopen */ 249 250 251 /*****************************************************************************/ 252 253 254 void 255 inlinepic(FILE *fp, char *buf) 256 /* fp - current input file */ 257 /* buf - whatever followed "x X InlinePicture" */ 258 { 259 char *tname; /* temp file pathname - for *fp_pic */ 260 char name[100]; /* picture file pathname */ 261 long total; /* and size - both from *buf */ 262 263 264 /* 265 * 266 * Adds an in-line picture file to the end of temporary file *fp_pic. All pictures 267 * grabbed from the input file are saved in the same temp file. Each is preceeded 268 * by a one line header that includes the original picture file pathname and the 269 * size of the picture in bytes. The in-line picture file is opened for update, 270 * left open, and unlinked so it disappears when we do. 271 * 272 */ 273 274 275 if ( fp_pic == NULL ) { 276 if ( (tname = tempnam(TEMPDIR, "dpost")) == NULL ) 277 error(FATAL, "can't generate in-line picture file name"); 278 if ( (fp_pic = fopen(tname, "w+")) == NULL ) 279 error(FATAL, "can't open in-line picture file %s", tname); 280 unlink(tname); 281 } /* End if */ 282 283 if ( sscanf(buf, "%s %ld", name, &total) != 2 ) 284 error(FATAL, "in-line picture error"); 285 286 fseek(fp_pic, 0L, 2); 287 fprintf(fp_pic, "%s %ld\n", name, total); 288 getc(fp); 289 fflush(fp_pic); 290 piccopy(fp, fp_pic, total); 291 ungetc('\n', fp); 292 293 } /* End of inlinepic */ 294 295 296 /*****************************************************************************/ 297 298 299 static void 300 piccopy(FILE *fp_in, FILE *fp_out, long total) 301 /* fp_in - input */ 302 /* fp_out - and output file pointers */ 303 /* total - number of bytes to be copied */ 304 { 305 long i; /* loop index */ 306 307 308 /* 309 * 310 * Copies total bytes from file fp_in to fp_out. Used to append picture files to 311 * *fp_pic and then copy them to yet another temporary file immediately before 312 * they're used (in picture()). 313 * 314 */ 315 316 317 for ( i = 0; i < total; i++ ) 318 if ( putc(getc(fp_in), fp_out) == EOF ) 319 error(FATAL, "error copying in-line picture file"); 320 fflush(fp_out); 321 322 } /* End of piccopy */ 323