summaryrefslogtreecommitdiffstats
path: root/tkblt/generic/tkbltGrPSOutput.C
blob: 01a31018ccb8d0e2cedd57a193be74ab14ff746e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
/*
 * Smithsonian Astrophysical Observatory, Cambridge, MA, USA
 * This code has been modified under the terms listed below and is made
 * available under the same terms.
 */

/*
 *	Copyright 1991-2004 George A Howlett.
 *
 *	Permission is hereby granted, free of charge, to any person obtaining
 *	a copy of this software and associated documentation files (the
 *	"Software"), to deal in the Software without restriction, including
 *	without limitation the rights to use, copy, modify, merge, publish,
 *	distribute, sublicense, and/or sell copies of the Software, and to
 *	permit persons to whom the Software is furnished to do so, subject to
 *	the following conditions:
 *
 *	The above copyright notice and this permission notice shall be
 *	included in all copies or substantial portions of the Software.
 *
 *	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 *	LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 *	OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 *	WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */

#include <stdlib.h>
#include <string.h>
#include <time.h>

#include <cmath>

#include "tk.h"

// copied from tk3d.h

typedef struct TkBorder {
    Screen *screen;		/* Screen on which the border will be used. */
    Visual *visual;		/* Visual for all windows and pixmaps using
				 * the border. */
    int depth;			/* Number of bits per pixel of drawables where
				 * the border will be used. */
    Colormap colormap;		/* Colormap out of which pixels are
				 * allocated. */
    int resourceRefCount;	/* Number of active uses of this color (each
				 * active use corresponds to a call to
				 * Tk_Alloc3DBorderFromObj or Tk_Get3DBorder).
				 * If this count is 0, then this structure is
				 * no longer valid and it isn't present in
				 * borderTable: it is being kept around only
				 * because there are objects referring to it.
				 * The structure is freed when objRefCount and
				 * resourceRefCount are both 0. */
    int objRefCount;		/* The number of Tcl objects that reference
				 * this structure. */
    XColor *bgColorPtr;		/* Background color (intensity between
				 * lightColorPtr and darkColorPtr). */
    XColor *darkColorPtr;	/* Color for darker areas (must free when
				 * deleting structure). NULL means shadows
				 * haven't been allocated yet.*/
    XColor *lightColorPtr;	/* Color used for lighter areas of border
				 * (must free this when deleting structure).
				 * NULL means shadows haven't been allocated
				 * yet. */
    Pixmap shadow;		/* Stipple pattern to use for drawing shadows
				 * areas. Used for displays with <= 64 colors
				 * or where colormap has filled up. */
    GC bgGC;			/* Used (if necessary) to draw areas in the
				 * background color. */
    GC darkGC;			/* Used to draw darker parts of the border.
				 * None means the shadow colors haven't been
				 * allocated yet.*/
    GC lightGC;			/* Used to draw lighter parts of the border.
				 * None means the shadow colors haven't been
				 * allocated yet. */
    Tcl_HashEntry *hashPtr;	/* Entry in borderTable (needed in order to
				 * delete structure). */
    struct TkBorder *nextPtr;	/* Points to the next TkBorder structure with
				 * the same color name. Borders with the same
				 * name but different screens or colormaps are
				 * chained together off a single entry in
				 * borderTable. */
} TkBorder;

#include "tkbltGraph.h"
#include "tkbltGrPostscript.h"
#include "tkbltGrPSOutput.h"

using namespace Blt;

PSOutput::PSOutput(Graph* graphPtr)
{
  graphPtr_ = graphPtr;

  Tcl_DStringInit(&dString_);
}

PSOutput::~PSOutput()
{
  Tcl_DStringFree(&dString_);
}

void PSOutput::printPolyline(Point2d* screenPts, int nScreenPts)
{
  Point2d* pp = screenPts;
  append("newpath\n");
  format("  %g %g moveto\n", pp->x, pp->y);

  Point2d* pend;
  for (pp++, pend = screenPts + nScreenPts; pp < pend; pp++)
    format("  %g %g lineto\n", pp->x, pp->y);
}

void PSOutput::printMaxPolyline(Point2d* points, int nPoints)
{
  if (nPoints <= 0)
    return;

  for (int nLeft = nPoints; nLeft > 0; nLeft -= 1500) {
    int length = MIN(1500, nLeft);
    printPolyline(points, length);
    append("DashesProc stroke\n");
    points += length;
  }
}

void PSOutput::printSegments(Segment2d* segments, int nSegments)
{
  append("newpath\n");

  for (Segment2d *sp = segments, *send = sp + nSegments; sp < send; sp++) {
    format("  %g %g moveto %g %g lineto\n", sp->p.x, sp->p.y, sp->q.x, sp->q.y);
    append("DashesProc stroke\n");
  }
}

void PSOutput::computeBBox(int width, int height)
{
  Postscript* setupPtr = graphPtr_->postscript_;
  PostscriptOptions* pops = (PostscriptOptions*)setupPtr->ops_;

  // scale from points to pica
  double pica = 25.4 / 72 *
    WidthOfScreen(Tk_Screen(graphPtr_->tkwin_)) / 
    WidthMMOfScreen(Tk_Screen(graphPtr_->tkwin_));

  double hBorder = 2*pops->xPad/pica;
  double vBorder = 2*pops->yPad/pica;
  int hSize = !pops->landscape ? width : height; 
  int vSize = !pops->landscape ? height : width;

  // If the paper size wasn't specified, set it to the graph size plus the
  // paper border.
  double paperWidth = pops->reqPaperWidth > 0 ? pops->reqPaperWidth/pica :
    hSize + hBorder;
  double paperHeight = pops->reqPaperHeight > 0 ? pops->reqPaperHeight/pica :
    vSize + vBorder;

  // Scale the plot size if it's bigger than the paper
  double hScale = (hSize+hBorder)>paperWidth ? (paperWidth-hBorder)/hSize
    : 1.0;
  double vScale = (vSize+vBorder)>paperHeight ? (paperHeight-vBorder)/vSize
    : 1.0;

  double scale = MIN(hScale, vScale);
  if (scale != 1.0) {
    hSize = (int)(hSize*scale + 0.5);
    vSize = (int)(vSize*scale + 0.5);
  }

  int x = (int)((paperWidth > hSize) && pops->center ?
		(paperWidth - hSize) / 2 : pops->xPad/pica);
  int y = (int)((paperHeight > vSize) && pops->center ?
		(paperHeight - vSize) / 2 : pops->yPad/pica);

  setupPtr->left = x;
  setupPtr->bottom = y;
  setupPtr->right = x + hSize - 1;
  setupPtr->top = y + vSize - 1;
  setupPtr->scale = scale;
  setupPtr->paperHeight = (int)paperHeight;
  setupPtr->paperWidth = (int)paperWidth;
}

const char* PSOutput::getValue(int* lengthPtr)
{
  *lengthPtr = strlen(Tcl_DStringValue(&dString_));
  return Tcl_DStringValue(&dString_);
}

void PSOutput::append(const char* string)
{
  Tcl_DStringAppend(&dString_, string, -1);
}

void PSOutput::format(const char* fmt, ...)
{
  va_list argList;

  va_start(argList, fmt);
  vsnprintf(scratchArr_, POSTSCRIPT_BUFSIZ, fmt, argList);
  va_end(argList);
  Tcl_DStringAppend(&dString_, scratchArr_, -1);
}

void PSOutput::setLineWidth(int lineWidth)
{
  if (lineWidth < 1)
    lineWidth = 1;
  format("%d setlinewidth\n", lineWidth);
}

void PSOutput::printRectangle(double x, double y, int width, int height)
{
  append("newpath\n");
  format("  %g %g moveto\n", x, y);
  format("  %d %d rlineto\n", width, 0);
  format("  %d %d rlineto\n", 0, height);
  format("  %d %d rlineto\n", -width, 0);
  append("closepath\n");
  append("stroke\n");
}

void PSOutput::fillRectangle(double x, double y, int width, int height)
{
  append("newpath\n");
  format("  %g %g moveto\n", x, y);
  format("  %d %d rlineto\n", width, 0);
  format("  %d %d rlineto\n", 0, height);
  format("  %d %d rlineto\n", -width, 0);
  append("closepath\n");
  append("fill\n");
}

void PSOutput::fillRectangles(Rectangle* rectangles, int nRectangles)
{
  for (Rectangle *rp = rectangles, *rend = rp + nRectangles; rp < rend; rp++)
    fillRectangle((double)rp->x, (double)rp->y, (int)rp->width,(int)rp->height);
}

void PSOutput::setBackground(XColor* colorPtr)
{
  PostscriptOptions* pops = (PostscriptOptions*)graphPtr_->postscript_->ops_;
  printXColor(colorPtr);
  append(" setrgbcolor\n");
  if (pops->greyscale)
    append(" currentgray setgray\n");
}

void PSOutput::setForeground(XColor* colorPtr)
{
  PostscriptOptions* pops = (PostscriptOptions*)graphPtr_->postscript_->ops_;
  printXColor(colorPtr);
  append(" setrgbcolor\n");
  if (pops->greyscale)
    append(" currentgray setgray\n");
}

void PSOutput::setBackground(Tk_3DBorder border)
{
  TkBorder* borderPtr = (TkBorder*)border;
  setBackground(borderPtr->bgColorPtr);
}

void PSOutput::setFont(Tk_Font font) 
{
  Tcl_DString psdstr;
  Tcl_DStringInit(&psdstr);
  int psSize = Tk_PostscriptFontName(font, &psdstr);
  format("%d /%s SetFont\n", psSize, Tcl_DStringValue(&psdstr));
  Tcl_DStringFree(&psdstr);
}

void PSOutput::setLineAttributes(XColor* colorPtr,int lineWidth,
				   Dashes* dashesPtr, int capStyle, 
				   int joinStyle)
{
  setJoinStyle(joinStyle);
  setCapStyle(capStyle);
  setForeground(colorPtr);
  setLineWidth(lineWidth);
  setDashes(dashesPtr);
  append("/DashesProc {} def\n");
}

void PSOutput::fill3DRectangle(Tk_3DBorder border, double x, double y,
				 int width, int height, int borderWidth, 
				 int relief)
{
  TkBorder* borderPtr = (TkBorder*)border;

  setBackground(borderPtr->bgColorPtr);
  fillRectangle(x, y, width, height);
  print3DRectangle(border, x, y, width, height, borderWidth, relief);
}

void PSOutput::setClearBackground()
{
  append("1 1 1 setrgbcolor\n");
}

void PSOutput::setDashes(Dashes* dashesPtr)
{

  append("[ ");
  if (dashesPtr) {
    for (unsigned char* vp = dashesPtr->values; *vp != 0; vp++)
      format(" %d", *vp);
  }
  append("] 0 setdash\n");
}

void PSOutput::fillPolygon(Point2d *screenPts, int nScreenPts)
{
  printPolygon(screenPts, nScreenPts);
  append("fill\n");
}

void PSOutput::setJoinStyle(int joinStyle)
{
  // miter = 0, round = 1, bevel = 2
  format("%d setlinejoin\n", joinStyle);
}

void PSOutput::setCapStyle(int capStyle)
{
  // X11:not last = 0, butt = 1, round = 2, projecting = 3
  // PS: butt = 0, round = 1, projecting = 2
  if (capStyle > 0)
    capStyle--;

  format("%d setlinecap\n", capStyle);
}

void PSOutput::printPolygon(Point2d *screenPts, int nScreenPts)
{
  Point2d* pp = screenPts;
  append("newpath\n");
  format("  %g %g moveto\n", pp->x, pp->y);

  Point2d* pend;
  for (pp++, pend = screenPts + nScreenPts; pp < pend; pp++) 
    format("  %g %g lineto\n", pp->x, pp->y);

  format("  %g %g lineto\n", screenPts[0].x, screenPts[0].y);
  append("closepath\n");
}

void PSOutput::print3DRectangle(Tk_3DBorder border, double x, double y,
				 int width, int height, int borderWidth,
				 int relief)
{
  int twiceWidth = (borderWidth * 2);
  if ((width < twiceWidth) || (height < twiceWidth))
    return;

  TkBorder* borderPtr = (TkBorder*)border;

  // Handle grooves and ridges with recursive calls
  if ((relief == TK_RELIEF_GROOVE) || (relief == TK_RELIEF_RIDGE)) {
    int halfWidth = borderWidth / 2;
    int insideOffset = borderWidth - halfWidth;
    print3DRectangle(border, (double)x, (double)y, width, height, halfWidth, 
		    (relief == TK_RELIEF_GROOVE) ? 
		    TK_RELIEF_SUNKEN : TK_RELIEF_RAISED);
    print3DRectangle(border, (double)(x + insideOffset), 
		    (double)(y + insideOffset), width - insideOffset * 2, 
		    height - insideOffset * 2, halfWidth,
		    (relief == TK_RELIEF_GROOVE) ? 
		    TK_RELIEF_RAISED : TK_RELIEF_SUNKEN);
    return;
  }

  XColor* lightPtr = borderPtr->lightColorPtr;
  XColor* darkPtr = borderPtr->darkColorPtr;
  XColor light;
  if (!lightPtr) {
    light.red = 0x00;
    light.blue = 0x00;
    light.green = 0x00;
    lightPtr = &light;
  }
  XColor dark;
  if (!darkPtr) {
    dark.red = 0x00;
    dark.blue = 0x00;
    dark.green = 0x00;
    darkPtr = &dark;
  }

  XColor* topPtr, *bottomPtr;
  if (relief == TK_RELIEF_RAISED) {
    topPtr = lightPtr;
    bottomPtr = darkPtr;
  }
  else if (relief == TK_RELIEF_SUNKEN) {
    topPtr = darkPtr;
    bottomPtr = lightPtr;
  }
  else if (relief == TK_RELIEF_SOLID) {
    topPtr = lightPtr;
    bottomPtr = lightPtr;
  }
  else {
    topPtr = borderPtr->bgColorPtr;
    bottomPtr = borderPtr->bgColorPtr;
  }

  setBackground(bottomPtr);
  fillRectangle(x, y + height - borderWidth, width, borderWidth);
  fillRectangle(x + width - borderWidth, y, borderWidth, height);

  Point2d points[7];
  points[0].x = points[1].x = points[6].x = x;
  points[0].y = points[6].y = y + height;
  points[1].y = points[2].y = y;
  points[2].x = x + width;
  points[3].x = x + width - borderWidth;
  points[3].y = points[4].y = y + borderWidth;
  points[4].x = points[5].x = x + borderWidth;
  points[5].y = y + height - borderWidth;
  if (relief != TK_RELIEF_FLAT)
    setBackground(topPtr);

  fillPolygon(points, 7);
}

void PSOutput::printXColor(XColor* colorPtr)
{
  format("%g %g %g",
	 ((double)(colorPtr->red >> 8) / 255.0),
	 ((double)(colorPtr->green >> 8) / 255.0),
	 ((double)(colorPtr->blue >> 8) / 255.0));
}

int PSOutput::preamble(const char* fileName)
{
  Postscript* setupPtr = graphPtr_->postscript_;
  PostscriptOptions* ops = (PostscriptOptions*)setupPtr->ops_;

  if (!fileName)
    fileName = Tk_PathName(graphPtr_->tkwin_);

  // Comments
  append("%!PS-Adobe-3.0 EPSF-3.0\n");

  // The "BoundingBox" comment is required for EPS files. The box
  // coordinates are integers, so we need round away from the center of the
  // box.
  format("%%%%BoundingBox: %d %d %d %d\n",
	 setupPtr->left, setupPtr->paperHeight - setupPtr->top,
	 setupPtr->right, setupPtr->paperHeight - setupPtr->bottom);
	
  append("%%Pages: 0\n");

  format("%%%%Creator: (%s %s %s)\n", PACKAGE_NAME, PACKAGE_VERSION,
	 Tk_Class(graphPtr_->tkwin_));

  time_t ticks = time((time_t *) NULL);
  char date[200];
  strcpy(date, ctime(&ticks));
  char* newline = date + strlen(date) - 1;
  if (*newline == '\n')
    *newline = '\0';

  format("%%%%CreationDate: (%s)\n", date);
  format("%%%%Title: (%s)\n", fileName);
  append("%%DocumentData: Clean7Bit\n");
  if (ops->landscape)
    append("%%Orientation: Landscape\n");
  else
    append("%%Orientation: Portrait\n");

  append("%%DocumentNeededResources: font Helvetica Courier\n");
  addComments(ops->comments);
  append("%%EndComments\n\n");

  // Prolog
  prolog();

  // Setup
  append("%%BeginSetup\n");
  append("gsave\n");
  append("1 setlinewidth\n");
  append("1 setlinejoin\n");
  append("0 setlinecap\n");
  append("[] 0 setdash\n");
  append("0 0 0 setrgbcolor\n");

  if (ops->footer) {
    const char* who = getenv("LOGNAME");
    if (!who)
      who = "???";

    append("8 /Helvetica SetFont\n");
    append("10 30 moveto\n");
    format("(Date: %s) show\n", date);
    append("10 20 moveto\n");
    format("(File: %s) show\n", fileName);
    append("10 10 moveto\n");
    format("(Created by: %s@%s) show\n", who, Tcl_GetHostName());
    append("0 0 moveto\n");
  }

  // Set the conversion from postscript to X11 coordinates. Scale pica to
  // pixels and flip the y-axis (the origin is the upperleft corner).
  // Papersize is in pixels. Translate the new origin *after* changing the scale
  append("% Transform coordinate system to use X11 coordinates\n");
  append("% 1. Flip y-axis over by reversing the scale,\n");
  append("% 2. Translate the origin to the other side of the page,\n");
  append("%    making the origin the upper left corner\n");
  append("1 -1 scale\n");
  format("0 %d translate\n", -setupPtr->paperHeight);

  // Set Origin
  format("%% Set origin\n%d %d translate\n\n", setupPtr->left,setupPtr->bottom);
  if (ops->landscape)
    format("%% Landscape orientation\n0 %g translate\n-90 rotate\n",
	   ((double)graphPtr_->width_ * setupPtr->scale));

  append("\n%%EndSetup\n\n");

  return TCL_OK;
}

void PSOutput::addComments(const char** comments)
{
  if (!comments)
    return;

  for (const char** pp = comments; *pp; pp+=2) {
    if (*(pp+1) == NULL)
      break;
    format("%% %s: %s\n", *pp, *(pp+1));
  }
}

unsigned char PSOutput::reverseBits(unsigned char byte)
{
  byte = ((byte >> 1) & 0x55) | ((byte << 1) & 0xaa);
  byte = ((byte >> 2) & 0x33) | ((byte << 2) & 0xcc);
  byte = ((byte >> 4) & 0x0f) | ((byte << 4) & 0xf0);
  return byte;
}

void PSOutput::byteToHex(unsigned char byte, char* string)
{
  static char hexDigits[] = "0123456789ABCDEF";

  string[0] = hexDigits[byte >> 4];
  string[1] = hexDigits[byte & 0x0F];
}

void PSOutput::prolog()
{
  append(
"%%BeginProlog\n"
"%\n"
"% PostScript prolog file of the BLT graph widget.\n"
"%\n"
"% Copyright 1989-1992 Regents of the University of California.\n"
"% Permission to use, copy, modify, and distribute this\n"
"% software and its documentation for any purpose and without\n"
"% fee is hereby granted, provided that the above copyright\n"
"% notice appear in all copies.  The University of California\n"
"% makes no representations about the suitability of this\n"
"% software for any purpose.  It is provided 'as is' without\n"
"% express or implied warranty.\n"
"%\n"
"% Copyright 1991-1997 Bell Labs Innovations for Lucent Technologies.\n"
"%\n"
"% Permission to use, copy, modify, and distribute this software and its\n"
"% documentation for any purpose and without fee is hereby granted, provided\n"
"% that the above copyright notice appear in all copies and that both that the\n"
"% copyright notice and warranty disclaimer appear in supporting documentation,\n"
"% and that the names of Lucent Technologies any of their entities not be used\n"
"% in advertising or publicity pertaining to distribution of the software\n"
"% without specific, written prior permission.\n"
"%\n"
"% Lucent Technologies disclaims all warranties with regard to this software,\n"
"% including all implied warranties of merchantability and fitness.  In no event\n"
"% shall Lucent Technologies be liable for any special, indirect or\n"
"% consequential damages or any damages whatsoever resulting from loss of use,\n"
"% data or profits, whether in an action of contract, negligence or other\n"
"% tortuous action, arising out of or in connection with the use or performance\n"
"% of this software.\n"
"%\n"
"\n"
"200 dict begin\n"
"\n"
"/BaseRatio 1.3467736870885982 def	% Ratio triangle base / symbol size\n"
"/DrawSymbolProc 0 def			% Routine to draw symbol outline/fill\n"
"/DashesProc 0 def			% Dashes routine (line segments)\n"
"\n"
"% Define the array ISOLatin1Encoding (which specifies how characters are \n"
"% encoded for ISO-8859-1 fonts), if it isn't already present (Postscript \n"
"% level 2 is supposed to define it, but level 1 doesn't). \n"
"\n"
"systemdict /ISOLatin1Encoding known not { \n"
"  /ISOLatin1Encoding [ \n"
"    /space /space /space /space /space /space /space /space \n"
"    /space /space /space /space /space /space /space /space \n"
"    /space /space /space /space /space /space /space /space \n"
"    /space /space /space /space /space /space /space /space \n"
"    /space /exclam /quotedbl /numbersign /dollar /percent /ampersand \n"
"    /quoteright \n"
"    /parenleft /parenright /asterisk /plus /comma /minus /period /slash \n"
"    /zero /one /two /three /four /five /six /seven \n"
"    /eight /nine /colon /semicolon /less /equal /greater /question \n"
"    /at /A /B /C /D /E /F /G \n"
"    /H /I /J /K /L /M /N /O \n"
"    /P /Q /R /S /T /U /V /W \n"
"    /X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore \n"
"    /quoteleft /a /b /c /d /e /f /g \n"
"    /h /i /j /k /l /m /n /o \n"
"    /p /q /r /s /t /u /v /w \n"
"    /x /y /z /braceleft /bar /braceright /asciitilde /space \n"
"    /space /space /space /space /space /space /space /space \n"
"    /space /space /space /space /space /space /space /space \n"
"    /dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent \n"
"    /dieresis /space /ring /cedilla /space /hungarumlaut /ogonek /caron \n"
"    /space /exclamdown /cent /sterling /currency /yen /brokenbar /section \n"
"    /dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen \n"
"    /registered /macron \n"
"    /degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph \n"
"    /periodcentered \n"
"    /cedillar /onesuperior /ordmasculine /guillemotright /onequarter \n"
"    /onehalf /threequarters /questiondown \n"
"    /Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla \n"
"    /Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex \n"
"    /Idieresis \n"
"    /Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply \n"
"    /Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn \n"
"    /germandbls \n"
"    /agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla \n"
"    /egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex \n"
"    /idieresis \n"
"    /eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide \n"
"    /oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn \n"
"    /ydieresis \n"
"  ] def \n"
"} if \n"
"\n"
"% font ISOEncode font \n"
"% This procedure changes the encoding of a font from the default \n"
"% Postscript encoding to ISOLatin1.  It is typically invoked just \n"
"% before invoking 'setfont'.  The body of this procedure comes from \n"
"% Section 5.6.1 of the Postscript book. \n"
"\n"
"/ISOEncode { \n"
"  dup length dict\n"
"  begin \n"
"    {1 index /FID ne {def} {pop pop} ifelse} forall \n"
"    /Encoding ISOLatin1Encoding def \n"
"    currentdict \n"
"  end \n"
"\n"
"  % I'm not sure why it's necessary to use 'definefont' on this new \n"
"  % font, but it seems to be important; just use the name 'Temporary' \n"
"  % for the font. \n"
"\n"
"  /Temporary exch definefont \n"
"} bind def \n"
"\n"
"/Stroke {\n"
"  gsave\n"
"    stroke\n"
"  grestore\n"
"} def\n"
"\n"
"/Fill {\n"
"  gsave\n"
"    fill\n"
"  grestore\n"
"} def\n"
"\n"
"/SetFont { 	\n"
"  % Stack: pointSize fontName\n"
"  findfont exch scalefont ISOEncode setfont\n"
"} def\n"
"\n"
"/Box {\n"
"  % Stack: x y width height\n"
"  newpath\n"
"    exch 4 2 roll moveto\n"
"    dup 0 rlineto\n"
"    exch 0 exch rlineto\n"
"    neg 0 rlineto\n"
"  closepath\n"
"} def\n"
"\n"
"/LS {	% Stack: x1 y1 x2 y2\n"
"  newpath \n"
"    4 2 roll moveto \n"
"    lineto \n"
"  closepath\n"
"  stroke\n"
"} def\n"
"\n"
"/baselineSampler ( TXygqPZ) def\n"
"% Put an extra-tall character in; done this way to avoid encoding trouble\n"
"baselineSampler 0 196 put\n"
"\n"
"/cstringshow {\n"
"  {\n"
"    dup type /stringtype eq\n"
"    { show } { glyphshow }\n"
"    ifelse\n"
"  } forall\n"
"} bind def\n"
"\n"
"/cstringwidth {\n"
"  0 exch 0 exch\n"
"  {\n"
"    dup type /stringtype eq\n"
"    { stringwidth } {\n"
"      currentfont /Encoding get exch 1 exch put (\001)\n"
"      stringwidth\n"
"    }\n"
"    ifelse\n"
"    exch 3 1 roll add 3 1 roll add exch\n"
"  } forall\n"
"} bind def\n" 
"\n"
"/DrawText {\n"
"  gsave\n"
"  /justify exch def\n"
"  /yoffset exch def\n"
"  /xoffset exch def\n"
"  /strings exch def\n"
"  % Compute the baseline offset and the actual font height.\n"
"  0 0 moveto baselineSampler false charpath\n"
"  pathbbox dup /baseline exch def\n"
"  exch pop exch sub /height exch def pop\n"
"  newpath\n"
"  % overall width\n"
"  /ww 0 def\n"
"  strings {\n"
"    cstringwidth pop\n"
"    dup ww gt {/ww exch def} {pop} ifelse\n"
"    newpath\n"
"  } forall\n"
"  % overall height\n"
"  /hh 0 def\n"
"  strings length height mul /hh exch def\n"
"  newpath\n"
"  % Translate to x,y\n"
"  translate\n"
"  % Translate to offset\n"
"  ww xoffset mul hh yoffset mul translate\n"
"  % rotate\n"
"  ww 2 div hh 2 div translate\n"
"  neg rotate\n"
"  ww -2 div hh -2 div translate\n"
"  % Translate to justify and baseline\n"
"  justify ww mul baseline translate\n"
"  % For each line, justify and display\n"
"  strings {\n"
"    dup cstringwidth pop\n"
"    justify neg mul 0 moveto\n"
"    gsave\n"
"    1 -1 scale\n"
"    cstringshow\n"
"    grestore\n"
"    0 height translate\n"
"  } forall\n"
"  grestore\n"
"} bind def \n"
"\n"
"% Symbols:\n"
"\n"
"% Skinny-cross\n"
"/Sc {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate 45 rotate\n"
"    0 0 3 -1 roll Sp\n"
"  grestore\n"
"} def\n"
"\n"
"% Skinny-plus\n"
"/Sp {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate\n"
"    2 div\n"
"    dup 2 copy\n"
"    newpath \n"
"      neg 0 \n"
"      moveto 0 \n"
"      lineto\n"
"    DrawSymbolProc\n"
"    newpath \n"
"      neg 0 \n"
"      exch moveto 0 \n"
"      exch lineto\n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"% Cross\n"
"/Cr {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate 45 rotate\n"
"    0 0 3 -1 roll Pl\n"
"  grestore\n"
"} def\n"
"\n"
"% Plus\n"
"/Pl {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate\n"
"    dup 2 div\n"
"    exch 6 div\n"
"\n"
"    %\n"
"    %          2   3		The plus/cross symbol is a\n"
"    %				closed polygon of 12 points.\n"
"    %      0   1   4    5	The diagram to the left\n"
"    %           x,y		represents the positions of\n"
"    %     11  10   7    6	the points which are computed\n"
"    %				below.\n"
"    %          9   8\n"
"    %\n"
"\n"
"    newpath\n"
"      2 copy exch neg exch neg moveto \n"
"      dup neg dup lineto\n"
"      2 copy neg exch neg lineto\n"
"      2 copy exch neg lineto\n"
"      dup dup neg lineto \n"
"      2 copy neg lineto 2 copy lineto\n"
"      dup dup lineto \n"
"      2 copy exch lineto \n"
"      2 copy neg exch lineto\n"
"      dup dup neg exch lineto \n"
"      exch neg exch lineto\n"
"    closepath\n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"% Circle\n"
"/Ci {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 copy pop moveto \n"
"    newpath\n"
"      2 div 0 360 arc\n"
"    closepath \n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"% Square\n"
"/Sq {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    dup dup 2 div dup\n"
"    6 -1 roll exch sub exch\n"
"    5 -1 roll exch sub 4 -2 roll Box\n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"% Line\n"
"/Li {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 1 roll exch 3 -1 roll 2 div 3 copy\n"
"    newpath\n"
"      sub exch moveto \n"
"      add exch lineto\n"
"    closepath\n"
"    stroke\n"
"  grestore\n"
"} def\n"
"\n"
"% Diamond\n"
"/Di {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 1 roll translate 45 rotate 0 0 3 -1 roll Sq\n"
"  grestore\n"
"} def\n"
"    \n"
"% Triangle\n"
"/Tr {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate\n"
"    BaseRatio mul 0.5 mul		% Calculate 1/2 base\n"
"    dup 0 exch 30 cos mul		% h1 = height above center point\n"
"    neg				% b2 0 -h1\n"
"    newpath \n"
"      moveto				% point 1;  b2\n"
"      dup 30 sin 30 cos div mul	% h2 = height below center point\n"
"      2 copy lineto			% point 2;  b2 h2\n"
"      exch neg exch lineto		% \n"
"    closepath\n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"% Arrow\n"
"/Ar {\n"
"  % Stack: x y symbolSize\n"
"  gsave\n"
"    3 -2 roll translate\n"
"    BaseRatio mul 0.5 mul		% Calculate 1/2 base\n"
"    dup 0 exch 30 cos mul		% h1 = height above center point\n"
"					% b2 0 h1\n"
"    newpath moveto			% point 1;  b2\n"
"    dup 30 sin 30 cos div mul		% h2 = height below center point\n"
"    neg				% -h2 b2\n"
"    2 copy lineto			% point 2;  b2 h2\n"
"    exch neg exch lineto		% \n"
"    closepath\n"
"    DrawSymbolProc\n"
"  grestore\n"
"} def\n"
"\n"
"%%EndProlog\n"
);
}