]> git.saurik.com Git - wxWidgets.git/blob - src/generic/dcpsg.cpp
projects / wxWidgets.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Be C file.
[wxWidgets.git] / src / generic / dcpsg.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: dcpsg.cpp
3 // Purpose: Generic wxPostScriptDC implementation
4 // Author: Julian Smart, Robert Roebling, Markus Holzhem
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
13 #pragma implementation "dcpsg.h"
14 #endif
15
16 #include "wx/wxprec.h"
17
18 #ifdef __BORLANDC__
19 #pragma hdrstop
20 #endif
21
22 #ifndef WX_PRECOMP
23 #endif // WX_PRECOMP
24
25 #if wxUSE_PRINTING_ARCHITECTURE
26
27 #if wxUSE_POSTSCRIPT
28
29 #include "wx/setup.h"
30
31 #include "wx/dcmemory.h"
32 #include "wx/utils.h"
33 #include "wx/intl.h"
34 #include "wx/app.h"
35 #include "wx/image.h"
36 #include "wx/log.h"
37 #include "wx/generic/dcpsg.h"
38 #include "wx/prntbase.h"
39 #include "wx/generic/prntdlgg.h"
40 #include "wx/paper.h"
41 #include "wx/filefn.h"
42
43 #include <math.h>
44
45 #ifdef __WXMSW__
46
47 #ifdef DrawText
48 #undef DrawText
49 #endif
50
51 #ifdef StartDoc
52 #undef StartDoc
53 #endif
54
55 #ifdef GetCharWidth
56 #undef GetCharWidth
57 #endif
58
59 #ifdef FindWindow
60 #undef FindWindow
61 #endif
62
63 #endif
64
65 //-----------------------------------------------------------------------------
66 // start and end of document/page
67 //-----------------------------------------------------------------------------
68
69 static const char *wxPostScriptHeaderConicTo = "\
70 /conicto {\n\
71 /to_y exch def\n\
72 /to_x exch def\n\
73 /conic_cntrl_y exch def\n\
74 /conic_cntrl_x exch def\n\
75 currentpoint\n\
76 /p0_y exch def\n\
77 /p0_x exch def\n\
78 /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\
79 /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\
80 /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\
81 /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\
82 p1_x p1_y p2_x p2_y to_x to_y curveto\n\
83 } bind def\n\
84 ";
85
86 static const char *wxPostScriptHeaderEllipse = "\
87 /ellipsedict 8 dict def\n\
88 ellipsedict /mtrx matrix put\n\
89 /ellipse {\n\
90 ellipsedict begin\n\
91 /endangle exch def\n\
92 /startangle exch def\n\
93 /yrad exch def\n\
94 /xrad exch def\n\
95 /y exch def\n\
96 /x exch def\n\
97 /savematrix mtrx currentmatrix def\n\
98 x y translate\n\
99 xrad yrad scale\n\
100 0 0 1 startangle endangle arc\n\
101 savematrix setmatrix\n\
102 end\n\
103 } def\n\
104 ";
105
106 static const char *wxPostScriptHeaderEllipticArc= "\
107 /ellipticarcdict 8 dict def\n\
108 ellipticarcdict /mtrx matrix put\n\
109 /ellipticarc\n\
110 { ellipticarcdict begin\n\
111 /do_fill exch def\n\
112 /endangle exch def\n\
113 /startangle exch def\n\
114 /yrad exch def\n\
115 /xrad exch def \n\
116 /y exch def\n\
117 /x exch def\n\
118 /savematrix mtrx currentmatrix def\n\
119 x y translate\n\
120 xrad yrad scale\n\
121 do_fill { 0 0 moveto } if\n\
122 0 0 1 startangle endangle arc\n\
123 savematrix setmatrix\n\
124 do_fill { fill }{ stroke } ifelse\n\
125 end\n\
126 } def\n";
127
128 static const char *wxPostScriptHeaderSpline = "\
129 /DrawSplineSection {\n\
130 /y3 exch def\n\
131 /x3 exch def\n\
132 /y2 exch def\n\
133 /x2 exch def\n\
134 /y1 exch def\n\
135 /x1 exch def\n\
136 /xa x1 x2 x1 sub 0.666667 mul add def\n\
137 /ya y1 y2 y1 sub 0.666667 mul add def\n\
138 /xb x3 x2 x3 sub 0.666667 mul add def\n\
139 /yb y3 y2 y3 sub 0.666667 mul add def\n\
140 x1 y1 lineto\n\
141 xa ya xb yb x3 y3 curveto\n\
142 } def\n\
143 ";
144
145 static const char *wxPostScriptHeaderColourImage = "\
146 % define 'colorimage' if it isn't defined\n\
147 % ('colortogray' and 'mergeprocs' come from xwd2ps\n\
148 % via xgrab)\n\
149 /colorimage where % do we know about 'colorimage'?\n\
150 { pop } % yes: pop off the 'dict' returned\n\
151 { % no: define one\n\
152 /colortogray { % define an RGB->I function\n\
153 /rgbdata exch store % call input 'rgbdata'\n\
154 rgbdata length 3 idiv\n\
155 /npixls exch store\n\
156 /rgbindx 0 store\n\
157 0 1 npixls 1 sub {\n\
158 grays exch\n\
159 rgbdata rgbindx get 20 mul % Red\n\
160 rgbdata rgbindx 1 add get 32 mul % Green\n\
161 rgbdata rgbindx 2 add get 12 mul % Blue\n\
162 add add 64 idiv % I = .5G + .31R + .18B\n\
163 put\n\
164 /rgbindx rgbindx 3 add store\n\
165 } for\n\
166 grays 0 npixls getinterval\n\
167 } bind def\n\
168 \n\
169 % Utility procedure for colorimage operator.\n\
170 % This procedure takes two procedures off the\n\
171 % stack and merges them into a single procedure.\n\
172 \n\
173 /mergeprocs { % def\n\
174 dup length\n\
175 3 -1 roll\n\
176 dup\n\
177 length\n\
178 dup\n\
179 5 1 roll\n\
180 3 -1 roll\n\
181 add\n\
182 array cvx\n\
183 dup\n\
184 3 -1 roll\n\
185 0 exch\n\
186 putinterval\n\
187 dup\n\
188 4 2 roll\n\
189 putinterval\n\
190 } bind def\n\
191 \n\
192 /colorimage { % def\n\
193 pop pop % remove 'false 3' operands\n\
194 {colortogray} mergeprocs\n\
195 image\n\
196 } bind def\n\
197 } ifelse % end of 'false' case\n\
198 ";
199
200 static char wxPostScriptHeaderReencodeISO1[] =
201 "\n/reencodeISO {\n"
202 "dup dup findfont dup length dict begin\n"
203 "{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
204 "/Encoding ISOLatin1Encoding def\n"
205 "currentdict end definefont\n"
206 "} def\n"
207 "/ISOLatin1Encoding [\n"
208 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
209 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
210 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
211 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
212 "/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
213 "/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
214 "/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
215 "/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
216 "/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
217 "/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
218 "/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
219 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
220 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
221 "/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
222 "/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
223
224 static char wxPostScriptHeaderReencodeISO2[] =
225 "/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
226 "/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
227 "/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
228 "/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
229 "/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
230 "/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
231 "/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
232 "/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
233 "/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
234 "/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
235 "/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
236 "/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
237 "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
238 "/yacute/thorn/ydieresis\n"
239 "] def\n\n";
240
241 //-------------------------------------------------------------------------------
242 // wxPostScriptDC
243 //-------------------------------------------------------------------------------
244
245 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
246
247 float wxPostScriptDC::ms_PSScaleFactor = 1.0;
248
249 void wxPostScriptDC::SetResolution(int ppi)
250 {
251 ms_PSScaleFactor = (float)ppi / 72.0;
252 }
253
254 int wxPostScriptDC::GetResolution()
255 {
256 return (int)(ms_PSScaleFactor * 72.0);
257 }
258
259 //-------------------------------------------------------------------------------
260
261 wxPostScriptDC::wxPostScriptDC ()
262 {
263 m_pstream = (FILE*) NULL;
264
265 m_currentRed = 0;
266 m_currentGreen = 0;
267 m_currentBlue = 0;
268
269 m_pageNumber = 0;
270
271 m_clipping = false;
272
273 m_underlinePosition = 0.0;
274 m_underlineThickness = 0.0;
275
276 m_signX = 1; // default x-axis left to right
277 m_signY = -1; // default y-axis bottom up -> top down
278 }
279
280 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
281 {
282 m_pstream = (FILE*) NULL;
283
284 m_currentRed = 0;
285 m_currentGreen = 0;
286 m_currentBlue = 0;
287
288 m_pageNumber = 0;
289
290 m_clipping = false;
291
292 m_underlinePosition = 0.0;
293 m_underlineThickness = 0.0;
294
295 m_signX = 1; // default x-axis left to right
296 m_signY = -1; // default y-axis bottom up -> top down
297
298 m_printData = printData;
299
300 m_ok = true;
301 }
302
303 wxPostScriptDC::~wxPostScriptDC ()
304 {
305 if (m_pstream)
306 {
307 fclose( m_pstream );
308 m_pstream = (FILE*) NULL;
309 }
310 }
311
312 bool wxPostScriptDC::Ok() const
313 {
314 return m_ok;
315 }
316
317 void wxPostScriptDC::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
318 {
319 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
320
321 if (m_clipping) DestroyClippingRegion();
322
323 wxDC::DoSetClippingRegion(x, y, w, h);
324
325 m_clipping = true;
326
327 PsPrintf( wxT("gsave\n newpath\n")
328 wxT("%d %d moveto\n")
329 wxT("%d %d lineto\n")
330 wxT("%d %d lineto\n")
331 wxT("%d %d lineto\n")
332 wxT("closepath clip newpath\n"),
333 LogicalToDeviceX(x), LogicalToDeviceY(y),
334 LogicalToDeviceX(x+w), LogicalToDeviceY(y),
335 LogicalToDeviceX(x+w), LogicalToDeviceY(y+h),
336 LogicalToDeviceX(x), LogicalToDeviceY(y+h) );
337 }
338
339
340 void wxPostScriptDC::DestroyClippingRegion()
341 {
342 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
343
344 if (m_clipping)
345 {
346 m_clipping = false;
347 PsPrint( "grestore\n" );
348 }
349
350 wxDC::DestroyClippingRegion();
351 }
352
353 void wxPostScriptDC::Clear()
354 {
355 // This should fail silently to avoid unnecessary
356 // asserts
357 // wxFAIL_MSG( wxT("wxPostScriptDC::Clear not implemented.") );
358 }
359
360 bool wxPostScriptDC::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
361 {
362 wxFAIL_MSG( wxT("wxPostScriptDC::FloodFill not implemented.") );
363 return false;
364 }
365
366 bool wxPostScriptDC::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
367 {
368 wxFAIL_MSG( wxT("wxPostScriptDC::GetPixel not implemented.") );
369 return false;
370 }
371
372 void wxPostScriptDC::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
373 {
374 wxFAIL_MSG( wxT("wxPostScriptDC::CrossHair not implemented.") );
375 }
376
377 void wxPostScriptDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
378 {
379 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
380
381 if (m_pen.GetStyle() == wxTRANSPARENT) return;
382
383 SetPen( m_pen );
384
385 PsPrintf( wxT("newpath\n")
386 wxT("%d %d moveto\n")
387 wxT("%d %d lineto\n")
388 wxT("stroke\n"),
389 LogicalToDeviceX(x1), LogicalToDeviceY(y1),
390 LogicalToDeviceX(x2), LogicalToDeviceY (y2) );
391
392 CalcBoundingBox( x1, y1 );
393 CalcBoundingBox( x2, y2 );
394 }
395
396 #define RAD2DEG 57.29577951308
397
398 void wxPostScriptDC::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
399 {
400 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
401
402 wxCoord dx = x1 - xc;
403 wxCoord dy = y1 - yc;
404 wxCoord radius = (wxCoord) sqrt( (double)(dx*dx+dy*dy) );
405 double alpha1, alpha2;
406
407 if (x1 == x2 && y1 == y2)
408 {
409 alpha1 = 0.0;
410 alpha2 = 360.0;
411 }
412 else if (radius == 0.0)
413 {
414 alpha1 = alpha2 = 0.0;
415 }
416 else
417 {
418 alpha1 = (x1 - xc == 0) ?
419 (y1 - yc < 0) ? 90.0 : -90.0 :
420 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
421 alpha2 = (x2 - xc == 0) ?
422 (y2 - yc < 0) ? 90.0 : -90.0 :
423 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
424 }
425 while (alpha1 <= 0) alpha1 += 360;
426 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
427 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
428 while (alpha2 > 360) alpha2 -= 360;
429
430 if (m_brush.GetStyle() != wxTRANSPARENT)
431 {
432 SetBrush( m_brush );
433
434 PsPrintf( wxT("newpath\n")
435 wxT("%d %d %d %d %d %d ellipse\n")
436 wxT("%d %d lineto\n")
437 wxT("closepath\n")
438 wxT("fill\n"),
439 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
440 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
441
442 CalcBoundingBox( xc-radius, yc-radius );
443 CalcBoundingBox( xc+radius, yc+radius );
444 }
445
446 if (m_pen.GetStyle() != wxTRANSPARENT)
447 {
448 SetPen( m_pen );
449
450 PsPrintf( wxT("newpath\n")
451 wxT("%d %d %d %d %d %d ellipse\n")
452 wxT("%d %d lineto\n")
453 wxT("stroke\n")
454 wxT("fill\n"),
455 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
456 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
457
458 CalcBoundingBox( xc-radius, yc-radius );
459 CalcBoundingBox( xc+radius, yc+radius );
460 }
461 }
462
463 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
464 {
465 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
466
467 if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
468 if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
469 if (sa<0) sa+=360;
470 if (ea<0) ea+=360;
471
472 if (sa==ea)
473 {
474 DrawEllipse(x,y,w,h);
475 return;
476 }
477
478 if (m_brush.GetStyle () != wxTRANSPARENT)
479 {
480 SetBrush( m_brush );
481
482 PsPrintf( wxT("newpath\n")
483 wxT("%d %d %d %d %d %d true ellipticarc\n"),
484 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
485 LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
486 (wxCoord)sa, (wxCoord)ea );
487
488 CalcBoundingBox( x ,y );
489 CalcBoundingBox( x+w, y+h );
490 }
491
492 if (m_pen.GetStyle () != wxTRANSPARENT)
493 {
494 SetPen( m_pen );
495
496 PsPrintf( wxT("newpath\n")
497 wxT("%d %d %d %d %d %d false ellipticarc\n"),
498 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
499 LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
500 (wxCoord)sa, (wxCoord)ea );
501
502 CalcBoundingBox( x ,y );
503 CalcBoundingBox( x+w, y+h );
504 }
505 }
506
507 void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
508 {
509 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
510
511 if (m_pen.GetStyle() == wxTRANSPARENT) return;
512
513 SetPen (m_pen);
514
515 PsPrintf( wxT("newpath\n")
516 wxT("%d %d moveto\n")
517 wxT("%d %d lineto\n")
518 wxT("stroke\n"),
519 LogicalToDeviceX(x), LogicalToDeviceY(y),
520 LogicalToDeviceX(x+1), LogicalToDeviceY(y) );
521
522 CalcBoundingBox( x, y );
523 }
524
525 void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
526 {
527 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
528
529 if (n <= 0) return;
530
531 if (m_brush.GetStyle () != wxTRANSPARENT)
532 {
533 SetBrush( m_brush );
534
535 PsPrint( "newpath\n" );
536
537 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
538 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
539
540 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
541
542 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
543
544 for (int i = 1; i < n; i++)
545 {
546 xx = LogicalToDeviceX(points[i].x + xoffset);
547 yy = LogicalToDeviceY(points[i].y + yoffset);
548
549 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
550
551 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
552 }
553
554 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
555 }
556
557 if (m_pen.GetStyle () != wxTRANSPARENT)
558 {
559 SetPen( m_pen );
560
561 PsPrint( "newpath\n" );
562
563 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
564 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
565
566 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
567
568 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
569
570 for (int i = 1; i < n; i++)
571 {
572 xx = LogicalToDeviceX(points[i].x + xoffset);
573 yy = LogicalToDeviceY(points[i].y + yoffset);
574
575 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
576
577 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
578 }
579
580 PsPrint( "closepath\n" );
581 PsPrint( "stroke\n" );
582 }
583 }
584
585 void wxPostScriptDC::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
586 {
587 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
588
589 if (n <= 0) return;
590
591 if (m_brush.GetStyle () != wxTRANSPARENT)
592 {
593 SetBrush( m_brush );
594
595 PsPrint( "newpath\n" );
596
597 int ofs = 0;
598 for (int i = 0; i < n; ofs += count[i++])
599 {
600 wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
601 wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
602
603 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
604
605 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
606
607 for (int j = 1; j < count[i]; j++)
608 {
609 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
610 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
611
612 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
613
614 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
615 }
616 }
617 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
618 }
619
620 if (m_pen.GetStyle () != wxTRANSPARENT)
621 {
622 SetPen( m_pen );
623
624 PsPrint( "newpath\n" );
625
626 int ofs = 0;
627 for (int i = 0; i < n; ofs += count[i++])
628 {
629 wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
630 wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
631
632 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
633
634 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
635
636 for (int j = 1; j < count[i]; j++)
637 {
638 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
639 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
640
641 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
642
643 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
644 }
645 }
646 PsPrint( "closepath\n" );
647 PsPrint( "stroke\n" );
648 }
649 }
650
651 void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
652 {
653 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
654
655 if (m_pen.GetStyle() == wxTRANSPARENT) return;
656
657 if (n <= 0) return;
658
659 SetPen (m_pen);
660
661 int i;
662 for ( i =0; i<n ; i++ )
663 {
664 CalcBoundingBox( LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset));
665 }
666
667 PsPrintf( wxT("newpath\n")
668 wxT("%d %d moveto\n"),
669 LogicalToDeviceX(points[0].x+xoffset),
670 LogicalToDeviceY(points[0].y+yoffset) );
671
672 for (i = 1; i < n; i++)
673 {
674 PsPrintf( wxT("%d %d lineto\n"),
675 LogicalToDeviceX(points[i].x+xoffset),
676 LogicalToDeviceY(points[i].y+yoffset) );
677 }
678
679 PsPrint( "stroke\n" );
680 }
681
682 void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
683 {
684 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
685
686 if (m_brush.GetStyle () != wxTRANSPARENT)
687 {
688 SetBrush( m_brush );
689
690 PsPrintf( wxT("newpath\n")
691 wxT("%d %d moveto\n")
692 wxT("%d %d lineto\n")
693 wxT("%d %d lineto\n")
694 wxT("%d %d lineto\n")
695 wxT("closepath\n")
696 wxT("fill\n"),
697 LogicalToDeviceX(x), LogicalToDeviceY(y),
698 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
699 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
700 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
701
702 CalcBoundingBox( x, y );
703 CalcBoundingBox( x + width, y + height );
704 }
705
706 if (m_pen.GetStyle () != wxTRANSPARENT)
707 {
708 SetPen (m_pen);
709
710 PsPrintf( wxT("newpath\n")
711 wxT("%d %d moveto\n")
712 wxT("%d %d lineto\n")
713 wxT("%d %d lineto\n")
714 wxT("%d %d lineto\n")
715 wxT("closepath\n")
716 wxT("stroke\n"),
717 LogicalToDeviceX(x), LogicalToDeviceY(y),
718 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
719 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
720 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
721
722 CalcBoundingBox( x, y );
723 CalcBoundingBox( x + width, y + height );
724 }
725 }
726
727 void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
728 {
729 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
730
731 if (radius < 0.0)
732 {
733 // Now, a negative radius is interpreted to mean
734 // 'the proportion of the smallest X or Y dimension'
735 double smallest = width < height ? width : height;
736 radius = (-radius * smallest);
737 }
738
739 wxCoord rad = (wxCoord) radius;
740
741 if (m_brush.GetStyle () != wxTRANSPARENT)
742 {
743 SetBrush( m_brush );
744
745 /* Draw rectangle anticlockwise */
746 PsPrintf( wxT("newpath\n")
747 wxT("%d %d %d 90 180 arc\n")
748 wxT("%d %d moveto\n")
749 wxT("%d %d %d 180 270 arc\n")
750 wxT("%d %d lineto\n")
751 wxT("%d %d %d 270 0 arc\n")
752 wxT("%d %d lineto\n")
753 wxT("%d %d %d 0 90 arc\n")
754 wxT("%d %d lineto\n")
755 wxT("closepath\n")
756 wxT("fill\n"),
757 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
758 LogicalToDeviceX(x), LogicalToDeviceY(y + rad),
759 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
760 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
761 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
762 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
763 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
764 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
765
766 CalcBoundingBox( x, y );
767 CalcBoundingBox( x + width, y + height );
768 }
769
770 if (m_pen.GetStyle () != wxTRANSPARENT)
771 {
772 SetPen (m_pen);
773
774 /* Draw rectangle anticlockwise */
775 PsPrintf( wxT("newpath\n")
776 wxT("%d %d %d 90 180 arc\n")
777 wxT("%d %d moveto\n")
778 wxT("%d %d %d 180 270 arc\n")
779 wxT("%d %d lineto\n")
780 wxT("%d %d %d 270 0 arc\n")
781 wxT("%d %d lineto\n")
782 wxT("%d %d %d 0 90 arc\n")
783 wxT("%d %d lineto\n")
784 wxT("closepath\n")
785 wxT("stroke\n"),
786 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
787 LogicalToDeviceX(x), LogicalToDeviceY(y + rad),
788 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
789 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
790 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
791 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
792 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
793 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
794
795 CalcBoundingBox( x, y );
796 CalcBoundingBox( x + width, y + height );
797 }
798 }
799
800 void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
801 {
802 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
803
804 if (m_brush.GetStyle () != wxTRANSPARENT)
805 {
806 SetBrush (m_brush);
807
808 PsPrintf( wxT("newpath\n")
809 wxT("%d %d %d %d 0 360 ellipse\n")
810 wxT("fill\n"),
811 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
812 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
813
814 CalcBoundingBox( x - width, y - height );
815 CalcBoundingBox( x + width, y + height );
816 }
817
818 if (m_pen.GetStyle () != wxTRANSPARENT)
819 {
820 SetPen (m_pen);
821
822 PsPrintf( wxT("newpath\n")
823 wxT("%d %d %d %d 0 360 ellipse\n")
824 wxT("stroke\n"),
825 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
826 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
827
828 CalcBoundingBox( x - width, y - height );
829 CalcBoundingBox( x + width, y + height );
830 }
831 }
832
833 void wxPostScriptDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
834 {
835 DrawBitmap( icon, x, y, true );
836 }
837
838 /* this has to be char, not wxChar */
839 static char hexArray[] = "0123456789ABCDEF";
840
841 void wxPostScriptDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
842 {
843 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
844
845 if (!bitmap.Ok()) return;
846
847 wxImage image = bitmap.ConvertToImage();
848
849 if (!image.Ok()) return;
850
851 wxCoord w = image.GetWidth();
852 wxCoord h = image.GetHeight();
853
854 wxCoord ww = LogicalToDeviceXRel(image.GetWidth());
855 wxCoord hh = LogicalToDeviceYRel(image.GetHeight());
856
857 wxCoord xx = LogicalToDeviceX(x);
858 wxCoord yy = LogicalToDeviceY(y + bitmap.GetHeight());
859
860 PsPrintf( wxT("/origstate save def\n")
861 wxT("20 dict begin\n")
862 wxT("/pix %d string def\n")
863 wxT("/grays %d string def\n")
864 wxT("/npixels 0 def\n")
865 wxT("/rgbindx 0 def\n")
866 wxT("%d %d translate\n")
867 wxT("%d %d scale\n")
868 wxT("%d %d 8\n")
869 wxT("[%d 0 0 %d 0 %d]\n")
870 wxT("{currentfile pix readhexstring pop}\n")
871 wxT("false 3 colorimage\n"),
872 w, w, xx, yy, ww, hh, w, h, w, -h, h );
873
874 unsigned char* data = image.GetData();
875
876 /* buffer = line = width*rgb(3)*hexa(2)+'\n'(1)+null(1) */
877 char* buffer = new char[ w*6+2 ];
878 int firstDigit, secondDigit;
879
880 //rows
881 for (int j = 0; j < h; j++)
882 {
883 char* bufferindex = buffer;
884
885 //cols
886 for (int i = 0; i < w*3; i++)
887 {
888 firstDigit = (int)(*data/16.0);
889 secondDigit = (int)(*data - (firstDigit*16.0));
890 *(bufferindex++) = hexArray[firstDigit];
891 *(bufferindex++) = hexArray[secondDigit];
892
893 data++;
894 }
895 *(bufferindex++) = '\n';
896 *bufferindex = 0;
897 PsPrint( buffer );
898 }
899
900 PsPrint( "end\n" );
901 PsPrint( "origstate restore\n" );
902 }
903
904 void wxPostScriptDC::SetFont( const wxFont& font )
905 {
906 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
907
908 if (!font.Ok()) return;
909
910 m_font = font;
911
912 int Style = m_font.GetStyle();
913 int Weight = m_font.GetWeight();
914
915 const char *name;
916 switch (m_font.GetFamily())
917 {
918 case wxTELETYPE:
919 case wxMODERN:
920 {
921 if (Style == wxITALIC)
922 {
923 if (Weight == wxBOLD)
924 name = "/Courier-BoldOblique";
925 else
926 name = "/Courier-Oblique";
927 }
928 else
929 {
930 if (Weight == wxBOLD)
931 name = "/Courier-Bold";
932 else
933 name = "/Courier";
934 }
935 break;
936 }
937 case wxROMAN:
938 {
939 if (Style == wxITALIC)
940 {
941 if (Weight == wxBOLD)
942 name = "/Times-BoldItalic";
943 else
944 name = "/Times-Italic";
945 }
946 else
947 {
948 if (Weight == wxBOLD)
949 name = "/Times-Bold";
950 else
951 name = "/Times-Roman";
952 }
953 break;
954 }
955 case wxSCRIPT:
956 {
957 name = "/ZapfChancery-MediumItalic";
958 break;
959 }
960 case wxSWISS:
961 default:
962 {
963 if (Style == wxITALIC)
964 {
965 if (Weight == wxBOLD)
966 name = "/Helvetica-BoldOblique";
967 else
968 name = "/Helvetica-Oblique";
969 }
970 else
971 {
972 if (Weight == wxBOLD)
973 name = "/Helvetica-Bold";
974 else
975 name = "/Helvetica";
976 }
977 break;
978 }
979 }
980
981 // We may legitimately call SetFont before BeginDoc
982 if (!m_pstream)
983 return;
984
985 PsPrint( name );
986 PsPrint( " reencodeISO def\n" );
987 PsPrint( name );
988 PsPrint( " findfont\n" );
989
990 char buffer[100];
991 sprintf( buffer, "%f scalefont setfont\n", LogicalToDeviceYRel(m_font.GetPointSize() * 1000) / 1000.0F);
992 // this is a hack - we must scale font size (in pts) according to m_scaleY but
993 // LogicalToDeviceYRel works with wxCoord type (int or longint). Se we first convert font size
994 // to 1/1000th of pt and then back.
995 for (int i = 0; i < 100; i++)
996 if (buffer[i] == ',') buffer[i] = '.';
997 PsPrint( buffer );
998 }
999
1000 void wxPostScriptDC::SetPen( const wxPen& pen )
1001 {
1002 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1003
1004 if (!pen.Ok()) return;
1005
1006 int oldStyle = m_pen.GetStyle();
1007
1008 m_pen = pen;
1009
1010 char buffer[100];
1011 sprintf( buffer, "%f setlinewidth\n", LogicalToDeviceXRel(1000 * m_pen.GetWidth()) / 1000.0f );
1012 for (int i = 0; i < 100; i++)
1013 if (buffer[i] == ',') buffer[i] = '.';
1014 PsPrint( buffer );
1015
1016 /*
1017 Line style - WRONG: 2nd arg is OFFSET
1018
1019 Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1020 operator correctly. You should look-up this in the Red Book: the 2nd parame-
1021 ter is not number of values in the array of the first one, but an offset
1022 into this description of the pattern. I mean a real *offset* not index
1023 into array. I.e. If the command is [3 4] 1 setdash is used, then there
1024 will be first black line *2* units wxCoord, then space 4 units, then the
1025 pattern of *3* units black, 4 units space will be repeated.
1026 */
1027
1028 static const char *dotted = "[2 5] 2";
1029 static const char *short_dashed = "[4 4] 2";
1030 static const char *wxCoord_dashed = "[4 8] 2";
1031 static const char *dotted_dashed = "[6 6 2 6] 4";
1032
1033 const char *psdash;
1034
1035 switch (m_pen.GetStyle())
1036 {
1037 case wxDOT: psdash = dotted; break;
1038 case wxSHORT_DASH: psdash = short_dashed; break;
1039 case wxLONG_DASH: psdash = wxCoord_dashed; break;
1040 case wxDOT_DASH: psdash = dotted_dashed; break;
1041 case wxSOLID:
1042 case wxTRANSPARENT:
1043 default: psdash = "[] 0"; break;
1044 }
1045
1046 if ( (oldStyle != m_pen.GetStyle()) )
1047 {
1048 PsPrint( psdash );
1049 PsPrint( " setdash\n" );
1050 }
1051
1052 // Line colour
1053 unsigned char red = m_pen.GetColour().Red();
1054 unsigned char blue = m_pen.GetColour().Blue();
1055 unsigned char green = m_pen.GetColour().Green();
1056
1057 if (!m_colour)
1058 {
1059 // Anything not white is black
1060 if (! (red == (unsigned char) 255 &&
1061 blue == (unsigned char) 255 &&
1062 green == (unsigned char) 255) )
1063 {
1064 red = (unsigned char) 0;
1065 green = (unsigned char) 0;
1066 blue = (unsigned char) 0;
1067 }
1068 // setgray here ?
1069 }
1070
1071 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1072 {
1073 double redPS = (double)(red) / 255.0;
1074 double bluePS = (double)(blue) / 255.0;
1075 double greenPS = (double)(green) / 255.0;
1076
1077 char buffer[100];
1078 sprintf( buffer,
1079 "%.8f %.8f %.8f setrgbcolor\n",
1080 redPS, greenPS, bluePS );
1081 for (int i = 0; i < 100; i++)
1082 if (buffer[i] == ',') buffer[i] = '.';
1083
1084 PsPrint( buffer );
1085
1086 m_currentRed = red;
1087 m_currentBlue = blue;
1088 m_currentGreen = green;
1089 }
1090 }
1091
1092 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1093 {
1094 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1095
1096 if (!brush.Ok()) return;
1097
1098 m_brush = brush;
1099
1100 // Brush colour
1101 unsigned char red = m_brush.GetColour().Red();
1102 unsigned char blue = m_brush.GetColour().Blue();
1103 unsigned char green = m_brush.GetColour().Green();
1104
1105 if (!m_colour)
1106 {
1107 // Anything not white is black
1108 if (! (red == (unsigned char) 255 &&
1109 blue == (unsigned char) 255 &&
1110 green == (unsigned char) 255) )
1111 {
1112 red = (unsigned char) 0;
1113 green = (unsigned char) 0;
1114 blue = (unsigned char) 0;
1115 }
1116 // setgray here ?
1117 }
1118
1119 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1120 {
1121 double redPS = (double)(red) / 255.0;
1122 double bluePS = (double)(blue) / 255.0;
1123 double greenPS = (double)(green) / 255.0;
1124
1125 char buffer[100];
1126 sprintf( buffer,
1127 "%.8f %.8f %.8f setrgbcolor\n",
1128 redPS, greenPS, bluePS );
1129 for (int i = 0; i < 100; i++)
1130 if (buffer[i] == ',') buffer[i] = '.';
1131
1132 PsPrint( buffer );
1133
1134 m_currentRed = red;
1135 m_currentBlue = blue;
1136 m_currentGreen = green;
1137 }
1138 }
1139
1140 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1141 {
1142 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1143
1144 if (m_textForegroundColour.Ok())
1145 {
1146 unsigned char red = m_textForegroundColour.Red();
1147 unsigned char blue = m_textForegroundColour.Blue();
1148 unsigned char green = m_textForegroundColour.Green();
1149
1150 if (!m_colour)
1151 {
1152 // Anything not white is black
1153 if (! (red == (unsigned char) 255 &&
1154 blue == (unsigned char) 255 &&
1155 green == (unsigned char) 255))
1156 {
1157 red = (unsigned char) 0;
1158 green = (unsigned char) 0;
1159 blue = (unsigned char) 0;
1160 }
1161 }
1162
1163 // maybe setgray here ?
1164 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1165 {
1166 double redPS = (double)(red) / 255.0;
1167 double bluePS = (double)(blue) / 255.0;
1168 double greenPS = (double)(green) / 255.0;
1169
1170 char buffer[100];
1171 sprintf( buffer,
1172 "%.8f %.8f %.8f setrgbcolor\n",
1173 redPS, greenPS, bluePS );
1174 for (size_t i = 0; i < strlen(buffer); i++)
1175 if (buffer[i] == ',') buffer[i] = '.';
1176 PsPrint( buffer );
1177
1178 m_currentRed = red;
1179 m_currentBlue = blue;
1180 m_currentGreen = green;
1181 }
1182 }
1183
1184 wxCoord text_w, text_h, text_descent;
1185
1186 GetTextExtent(text, &text_w, &text_h, &text_descent);
1187
1188 // VZ: this seems to be unnecessary, so taking it out for now, if it
1189 // doesn't create any problems, remove this comment entirely
1190 //SetFont( m_font );
1191
1192
1193 int size = m_font.GetPointSize();
1194
1195 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1196 // commented by V. Slavik and replaced by accurate version
1197 // - note that there is still rounding error in text_descent!
1198 wxCoord by = y + size - text_descent; // baseline
1199
1200 PsPrintf( wxT("%d %d moveto\n"), LogicalToDeviceX(x), LogicalToDeviceY(by) );
1201 PsPrint( "(" );
1202
1203 const wxWX2MBbuf textbuf = text.mb_str();
1204 size_t len = strlen(textbuf);
1205 size_t i;
1206 for (i = 0; i < len; i++)
1207 {
1208 int c = (unsigned char) textbuf[i];
1209 if (c == ')' || c == '(' || c == '\\')
1210 {
1211 /* Cope with special characters */
1212 PsPrint( "\\" );
1213 PsPrint(c);
1214 }
1215 else if ( c >= 128 )
1216 {
1217 /* Cope with character codes > 127 */
1218 PsPrintf( wxT("\\%o"), c);
1219 }
1220 else
1221 {
1222 PsPrint(c);
1223 }
1224 }
1225
1226 PsPrint( ") show\n" );
1227
1228 if (m_font.GetUnderlined())
1229 {
1230 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1231 char buffer[100];
1232
1233 sprintf( buffer,
1234 "gsave\n"
1235 "%d %d moveto\n"
1236 "%f setlinewidth\n"
1237 "%d %d lineto\n"
1238 "stroke\n"
1239 "grestore\n",
1240 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1241 m_underlineThickness,
1242 LogicalToDeviceX(x + text_w), LogicalToDeviceY(uy) );
1243 for (i = 0; i < 100; i++)
1244 if (buffer[i] == ',') buffer[i] = '.';
1245 PsPrint( buffer );
1246 }
1247
1248 CalcBoundingBox( x, y );
1249 CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1250 }
1251
1252 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1253 {
1254 if (angle == 0.0)
1255 {
1256 DoDrawText(text, x, y);
1257 return;
1258 }
1259
1260 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1261
1262 SetFont( m_font );
1263
1264 if (m_textForegroundColour.Ok())
1265 {
1266 unsigned char red = m_textForegroundColour.Red();
1267 unsigned char blue = m_textForegroundColour.Blue();
1268 unsigned char green = m_textForegroundColour.Green();
1269
1270 if (!m_colour)
1271 {
1272 // Anything not white is black
1273 if (! (red == (unsigned char) 255 &&
1274 blue == (unsigned char) 255 &&
1275 green == (unsigned char) 255))
1276 {
1277 red = (unsigned char) 0;
1278 green = (unsigned char) 0;
1279 blue = (unsigned char) 0;
1280 }
1281 }
1282
1283 // maybe setgray here ?
1284 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1285 {
1286 double redPS = (double)(red) / 255.0;
1287 double bluePS = (double)(blue) / 255.0;
1288 double greenPS = (double)(green) / 255.0;
1289
1290 char buffer[100];
1291 sprintf( buffer,
1292 "%.8f %.8f %.8f setrgbcolor\n",
1293 redPS, greenPS, bluePS );
1294 for (int i = 0; i < 100; i++)
1295 if (buffer[i] == ',') buffer[i] = '.';
1296 PsPrint( buffer );
1297
1298 m_currentRed = red;
1299 m_currentBlue = blue;
1300 m_currentGreen = green;
1301 }
1302 }
1303
1304 int size = m_font.GetPointSize();
1305
1306 PsPrintf( wxT("%d %d moveto\n"),
1307 LogicalToDeviceX(x), LogicalToDeviceY(y));
1308
1309 char buffer[100];
1310 sprintf(buffer, "%.8f rotate\n", angle);
1311 size_t i;
1312 for (i = 0; i < 100; i++)
1313 {
1314 if (buffer[i] == ',') buffer[i] = '.';
1315 }
1316 PsPrint( buffer);
1317
1318 PsPrint( "(" );
1319 const wxWX2MBbuf textbuf = text.mb_str();
1320 size_t len = strlen(textbuf);
1321 for (i = 0; i < len; i++)
1322 {
1323 int c = (unsigned char) textbuf[i];
1324 if (c == ')' || c == '(' || c == '\\')
1325 {
1326 /* Cope with special characters */
1327 PsPrint( "\\" );
1328 PsPrint(c);
1329 }
1330 else if ( c >= 128 )
1331 {
1332 /* Cope with character codes > 127 */
1333 PsPrintf( wxT("\\%o"), c);
1334 }
1335 else
1336 {
1337 PsPrint(c);
1338 }
1339 }
1340
1341 PsPrint( ") show\n" );
1342
1343 sprintf( buffer, "%.8f rotate\n", -angle );
1344 for (i = 0; i < 100; i++)
1345 {
1346 if (buffer[i] == ',') buffer[i] = '.';
1347 }
1348 PsPrint( buffer );
1349
1350 if (m_font.GetUnderlined())
1351 {
1352 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1353 wxCoord w, h;
1354 char buffer[100];
1355 GetTextExtent(text, &w, &h);
1356
1357 sprintf( buffer,
1358 "gsave\n"
1359 "%d %d moveto\n"
1360 "%f setlinewidth\n"
1361 "%d %d lineto\n"
1362 "stroke\n"
1363 "grestore\n",
1364 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1365 m_underlineThickness,
1366 LogicalToDeviceX(x + w), LogicalToDeviceY(uy) );
1367 for (i = 0; i < 100; i++)
1368 {
1369 if (buffer[i] == ',') buffer[i] = '.';
1370 }
1371 PsPrint( buffer );
1372 }
1373
1374 CalcBoundingBox( x, y );
1375 CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1376 }
1377
1378 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1379 {
1380 m_backgroundBrush = brush;
1381 }
1382
1383 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1384 {
1385 wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1386 }
1387
1388 void wxPostScriptDC::DoDrawSpline( wxList *points )
1389 {
1390 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1391
1392 SetPen( m_pen );
1393
1394 // a and b are not used
1395 //double a, b;
1396 double c, d, x1, y1, x2, y2, x3, y3;
1397 wxPoint *p, *q;
1398
1399 wxList::compatibility_iterator node = points->GetFirst();
1400 p = (wxPoint *)node->GetData();
1401 x1 = p->x;
1402 y1 = p->y;
1403
1404 node = node->GetNext();
1405 p = (wxPoint *)node->GetData();
1406 c = p->x;
1407 d = p->y;
1408 x3 =
1409 #if 0
1410 a =
1411 #endif
1412 (double)(x1 + c) / 2;
1413 y3 =
1414 #if 0
1415 b =
1416 #endif
1417 (double)(y1 + d) / 2;
1418
1419 PsPrintf( wxT("newpath\n")
1420 wxT("%d %d moveto\n")
1421 wxT("%d %d lineto\n"),
1422 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1423 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1424
1425 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1426 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1427
1428 node = node->GetNext();
1429 while (node)
1430 {
1431 q = (wxPoint *)node->GetData();
1432
1433 x1 = x3;
1434 y1 = y3;
1435 x2 = c;
1436 y2 = d;
1437 c = q->x;
1438 d = q->y;
1439 x3 = (double)(x2 + c) / 2;
1440 y3 = (double)(y2 + d) / 2;
1441
1442 PsPrintf( wxT("%d %d %d %d %d %d DrawSplineSection\n"),
1443 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1444 LogicalToDeviceX((wxCoord)x2), LogicalToDeviceY((wxCoord)y2),
1445 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1446
1447 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1448 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1449
1450 node = node->GetNext();
1451 }
1452
1453 /*
1454 At this point, (x2,y2) and (c,d) are the position of the
1455 next-to-last and last point respectively, in the point list
1456 */
1457
1458 PsPrintf( wxT("%d %d lineto\n")
1459 wxT("stroke\n"),
1460 LogicalToDeviceX((wxCoord)c), LogicalToDeviceY((wxCoord)d) );
1461 }
1462
1463 wxCoord wxPostScriptDC::GetCharWidth() const
1464 {
1465 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1466 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1467 }
1468
1469
1470 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1471 {
1472 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1473
1474 m_signX = (xLeftRight ? 1 : -1);
1475 m_signY = (yBottomUp ? 1 : -1);
1476
1477 // FIXME there is no such function in MSW nor in OS2/PM
1478 #if !defined(__WXMSW__) && !defined(__WXPM__)
1479 ComputeScaleAndOrigin();
1480 #endif
1481 }
1482
1483 void wxPostScriptDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1484 {
1485 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1486
1487 int h = 0;
1488 int w = 0;
1489 GetSize( &w, &h );
1490
1491 wxDC::SetDeviceOrigin( x, h-y );
1492 }
1493
1494 void wxPostScriptDC::DoGetSize(int* width, int* height) const
1495 {
1496 wxPaperSize id = m_printData.GetPaperId();
1497
1498 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1499
1500 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1501
1502 int w = 595;
1503 int h = 842;
1504 if (paper)
1505 {
1506 w = paper->GetSizeDeviceUnits().x;
1507 h = paper->GetSizeDeviceUnits().y;
1508 }
1509
1510 if (m_printData.GetOrientation() == wxLANDSCAPE)
1511 {
1512 int tmp = w;
1513 w = h;
1514 h = tmp;
1515 }
1516
1517 if (width) *width = (int)(w * ms_PSScaleFactor);
1518 if (height) *height = (int)(h * ms_PSScaleFactor);
1519 }
1520
1521 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1522 {
1523 wxPaperSize id = m_printData.GetPaperId();
1524
1525 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1526
1527 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1528
1529 int w = 210;
1530 int h = 297;
1531 if (paper)
1532 {
1533 w = paper->GetWidth() / 10;
1534 h = paper->GetHeight() / 10;
1535 }
1536
1537 if (m_printData.GetOrientation() == wxLANDSCAPE)
1538 {
1539 int tmp = w;
1540 w = h;
1541 h = tmp;
1542 }
1543
1544 if (width) *width = w;
1545 if (height) *height = h;
1546 }
1547
1548 // Resolution in pixels per logical inch
1549 wxSize wxPostScriptDC::GetPPI(void) const
1550 {
1551 return wxSize((int)(72 * ms_PSScaleFactor),
1552 (int)(72 * ms_PSScaleFactor));
1553 }
1554
1555
1556 bool wxPostScriptDC::StartDoc( const wxString& message )
1557 {
1558 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1559
1560 if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1561 {
1562 if (m_printData.GetFilename() == wxEmptyString)
1563 {
1564 wxString filename = wxGetTempFileName( wxT("ps") );
1565 m_printData.SetFilename(filename);
1566 }
1567
1568 // FIXME: use fn_str() here under Unicode?
1569 m_pstream = wxFopen( m_printData.GetFilename().c_str(), wxT("w+") );
1570
1571 if (!m_pstream)
1572 {
1573 wxLogError( _("Cannot open file for PostScript printing!"));
1574 m_ok = false;
1575 return false;
1576 }
1577 }
1578
1579 m_ok = true;
1580 m_title = message;
1581
1582 PsPrint( "%!PS-Adobe-2.0\n" );
1583 PsPrintf( wxT("%%%%Title: %s\n"), m_title.c_str() );
1584 PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1585 PsPrintf( wxT("%%%%CreationDate: %s\n"), wxNow().c_str() );
1586 if (m_printData.GetOrientation() == wxLANDSCAPE)
1587 PsPrint( "%%Orientation: Landscape\n" );
1588 else
1589 PsPrint( "%%Orientation: Portrait\n" );
1590
1591 // PsPrintf( wxT("%%%%Pages: %d\n"), (wxPageNumber - 1) );
1592
1593 const wxChar *paper;
1594 switch (m_printData.GetPaperId())
1595 {
1596 case wxPAPER_LETTER: paper = wxT("Letter"); break; // Letter: paper ""; 8 1/2 by 11 inches
1597 case wxPAPER_LEGAL: paper = wxT("Legal"); break; // Legal, 8 1/2 by 14 inches
1598 case wxPAPER_A4: paper = wxT("A4"); break; // A4 Sheet, 210 by 297 millimeters
1599 case wxPAPER_TABLOID: paper = wxT("Tabloid"); break; // Tabloid, 11 by 17 inches
1600 case wxPAPER_LEDGER: paper = wxT("Ledger"); break; // Ledger, 17 by 11 inches
1601 case wxPAPER_STATEMENT: paper = wxT("Statement"); break; // Statement, 5 1/2 by 8 1/2 inches
1602 case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break; // Executive, 7 1/4 by 10 1/2 inches
1603 case wxPAPER_A3: paper = wxT("A3"); break; // A3 sheet, 297 by 420 millimeters
1604 case wxPAPER_A5: paper = wxT("A5"); break; // A5 sheet, 148 by 210 millimeters
1605 case wxPAPER_B4: paper = wxT("B4"); break; // B4 sheet, 250 by 354 millimeters
1606 case wxPAPER_B5: paper = wxT("B5"); break; // B5 sheet, 182-by-257-millimeter paper
1607 case wxPAPER_FOLIO: paper = wxT("Folio"); break; // Folio, 8-1/2-by-13-inch paper
1608 case wxPAPER_QUARTO: paper = wxT("Quaro"); break; // Quarto, 215-by-275-millimeter paper
1609 case wxPAPER_10X14: paper = wxT("10x14"); break; // 10-by-14-inch sheet
1610 default: paper = wxT("A4");
1611 }
1612 PsPrintf( wxT("%%%%DocumentPaperSizes: %s\n"), paper );
1613 PsPrint( "%%EndComments\n\n" );
1614
1615 PsPrint( "%%BeginProlog\n" );
1616 PsPrint( wxPostScriptHeaderConicTo );
1617 PsPrint( wxPostScriptHeaderEllipse );
1618 PsPrint( wxPostScriptHeaderEllipticArc );
1619 PsPrint( wxPostScriptHeaderColourImage );
1620 PsPrint( wxPostScriptHeaderReencodeISO1 );
1621 PsPrint( wxPostScriptHeaderReencodeISO2 );
1622 if (wxPostScriptHeaderSpline)
1623 PsPrint( wxPostScriptHeaderSpline );
1624 PsPrint( "%%EndProlog\n" );
1625
1626 SetBrush( *wxBLACK_BRUSH );
1627 SetPen( *wxBLACK_PEN );
1628 SetBackground( *wxWHITE_BRUSH );
1629 SetTextForeground( *wxBLACK );
1630
1631 // set origin according to paper size
1632 SetDeviceOrigin( 0,0 );
1633
1634 wxPageNumber = 1;
1635 m_pageNumber = 1;
1636 return true;
1637 }
1638
1639 void wxPostScriptDC::EndDoc ()
1640 {
1641 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1642
1643 if (m_clipping)
1644 {
1645 m_clipping = false;
1646 PsPrint( "grestore\n" );
1647 }
1648
1649 if ( m_pstream ) {
1650 fclose( m_pstream );
1651 m_pstream = (FILE *) NULL;
1652 }
1653
1654 #if 0
1655 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1656 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1657 double wx_printer_scale_x, wx_printer_scale_y;
1658
1659 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1660 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1661
1662 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1663 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1664
1665 // Compute the bounding box. Note that it is in the default user
1666 // coordinate system, thus we have to convert the values.
1667 wxCoord minX = (wxCoord) LogicalToDeviceX(m_minX);
1668 wxCoord minY = (wxCoord) LogicalToDeviceY(m_minY);
1669 wxCoord maxX = (wxCoord) LogicalToDeviceX(m_maxX);
1670 wxCoord maxY = (wxCoord) LogicalToDeviceY(m_maxY);
1671
1672 // LOG2DEV may have changed the minimum to maximum vice versa
1673 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1674 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1675
1676 // account for used scaling (boundingbox is before scaling in ps-file)
1677 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1678 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1679
1680 wxCoord llx, lly, urx, ury;
1681 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1682 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1683 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1684 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1685 // (end of bounding box computation)
1686
1687
1688 // If we're landscape, our sense of "x" and "y" is reversed.
1689 if (m_printData.GetOrientation() == wxLANDSCAPE)
1690 {
1691 wxCoord tmp;
1692 tmp = llx; llx = lly; lly = tmp;
1693 tmp = urx; urx = ury; ury = tmp;
1694
1695 // We need either the two lines that follow, or we need to subtract
1696 // min_x from real_translate_y, which is commented out below.
1697 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1698 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1699 }
1700
1701 // The Adobe specifications call for integers; we round as to make
1702 // the bounding larger.
1703 PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1704 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1705 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1706
1707 // To check the correctness of the bounding box, postscript commands
1708 // to draw a box corresponding to the bounding box are generated below.
1709 // But since we typically don't want to print such a box, the postscript
1710 // commands are generated within comments. These lines appear before any
1711 // adjustment of scale, rotation, or translation, and hence are in the
1712 // default user coordinates.
1713 PsPrint( "% newpath\n" );
1714 PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1715 PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1716 PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1717 PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1718 #endif
1719
1720 #ifndef __WXMSW__
1721 wxPostScriptPrintNativeData *data =
1722 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1723
1724 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1725 {
1726 wxString command;
1727 command += data->GetPrinterCommand();
1728 command += wxT(" ");
1729 command += data->GetPrinterOptions();
1730 command += wxT(" ");
1731 command += m_printData.GetFilename();
1732
1733 wxExecute( command, true );
1734 wxRemoveFile( m_printData.GetFilename() );
1735 }
1736 #endif
1737 }
1738
1739 void wxPostScriptDC::StartPage()
1740 {
1741 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1742
1743 PsPrintf( wxT("%%%%Page: %d\n"), wxPageNumber++ );
1744
1745 // What is this one supposed to do? RR.
1746 // *m_pstream << "matrix currentmatrix\n";
1747
1748 // Added by Chris Breeze
1749
1750 // Each page starts with an "initgraphics" which resets the
1751 // transformation and so we need to reset the origin
1752 // (and rotate the page for landscape printing)
1753
1754 // Output scaling
1755 wxCoord translate_x, translate_y;
1756 double scale_x, scale_y;
1757
1758 wxPostScriptPrintNativeData *data =
1759 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1760
1761 translate_x = (wxCoord)data->GetPrinterTranslateX();
1762 translate_y = (wxCoord)data->GetPrinterTranslateY();
1763
1764 scale_x = data->GetPrinterScaleX();
1765 scale_y = data->GetPrinterScaleY();
1766
1767 if (m_printData.GetOrientation() == wxLANDSCAPE)
1768 {
1769 int h;
1770 GetSize( (int*) NULL, &h );
1771 translate_y -= h;
1772 PsPrint( "90 rotate\n" );
1773 // I copied this one from a PostScript tutorial, but to no avail. RR.
1774 // PsPrint( "90 rotate llx neg ury nef translate\n" );
1775 }
1776
1777 char buffer[100];
1778 sprintf( buffer, "%.8f %.8f scale\n", scale_x / ms_PSScaleFactor,
1779 scale_y / ms_PSScaleFactor);
1780 for (int i = 0; i < 100; i++)
1781 if (buffer[i] == ',') buffer[i] = '.';
1782 PsPrint( buffer );
1783
1784 PsPrintf( wxT("%d %d translate\n"), translate_x, translate_y );
1785 }
1786
1787 void wxPostScriptDC::EndPage ()
1788 {
1789 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1790
1791 PsPrint( "showpage\n" );
1792 }
1793
1794 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
1795 wxCoord fwidth, wxCoord fheight,
1796 wxDC *source,
1797 wxCoord xsrc, wxCoord ysrc,
1798 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1799 {
1800 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1801
1802 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1803
1804 /* blit into a bitmap */
1805 wxBitmap bitmap( (int)fwidth, (int)fheight );
1806 wxMemoryDC memDC;
1807 memDC.SelectObject(bitmap);
1808 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1809 memDC.SelectObject(wxNullBitmap);
1810
1811 /* draw bitmap. scaling and positioning is done there */
1812 DrawBitmap( bitmap, xdest, ydest );
1813
1814 return true;
1815 }
1816
1817 wxCoord wxPostScriptDC::GetCharHeight() const
1818 {
1819 if (m_font.Ok())
1820 return m_font.GetPointSize();
1821 else
1822 return 12;
1823 }
1824
1825 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
1826 wxCoord *x, wxCoord *y,
1827 wxCoord *descent, wxCoord *externalLeading,
1828 wxFont *theFont ) const
1829 {
1830 wxFont *fontToUse = theFont;
1831
1832 if (!fontToUse) fontToUse = (wxFont*) &m_font;
1833
1834 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
1835
1836 if (string.empty())
1837 {
1838 if (x) (*x) = 0;
1839 if (y) (*y) = 0;
1840 if (descent) (*descent) = 0;
1841 if (externalLeading) (*externalLeading) = 0;
1842 return;
1843 }
1844
1845 // GTK 2.0
1846
1847 const wxWX2MBbuf strbuf = string.mb_str();
1848
1849 #if !wxUSE_AFM_FOR_POSTSCRIPT
1850 /* Provide a VERY rough estimate (avoid using it).
1851 * Produces accurate results for mono-spaced font
1852 * such as Courier (aka wxMODERN) */
1853
1854 int height = 12;
1855 if (fontToUse)
1856 {
1857 height = fontToUse->GetPointSize();
1858 }
1859 if ( x )
1860 *x = strlen (strbuf) * height * 72 / 120;
1861 if ( y )
1862 *y = (wxCoord) (height * 1.32); /* allow for descender */
1863 if (descent) *descent = 0;
1864 if (externalLeading) *externalLeading = 0;
1865 #else
1866
1867 /* method for calculating string widths in postscript:
1868 / read in the AFM (adobe font metrics) file for the
1869 / actual font, parse it and extract the character widths
1870 / and also the descender. this may be improved, but for now
1871 / it works well. the AFM file is only read in if the
1872 / font is changed. this may be chached in the future.
1873 / calls to GetTextExtent with the font unchanged are rather
1874 / efficient!!!
1875 /
1876 / for each font and style used there is an AFM file necessary.
1877 / currently i have only files for the roman font family.
1878 / I try to get files for the other ones!
1879 /
1880 / CAVE: the size of the string is currently always calculated
1881 / in 'points' (1/72 of an inch). this should later on be
1882 / changed to depend on the mapping mode.
1883 / CAVE: the path to the AFM files must be set before calling this
1884 / function. this is usually done by a call like the following:
1885 / wxSetAFMPath("d:\\wxw161\\afm\\");
1886 /
1887 / example:
1888 /
1889 / wxPostScriptDC dc(NULL, true);
1890 / if (dc.Ok()){
1891 / wxSetAFMPath("d:\\wxw161\\afm\\");
1892 / dc.StartDoc("Test");
1893 / dc.StartPage();
1894 / wxCoord w,h;
1895 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
1896 / dc.GetTextExtent("Hallo",&w,&h);
1897 / dc.EndPage();
1898 / dc.EndDoc();
1899 / }
1900 /
1901 / by steve (stefan.hammes@urz.uni-heidelberg.de)
1902 / created: 10.09.94
1903 / updated: 14.05.95 */
1904
1905 /* these static vars are for storing the state between calls */
1906 static int lastFamily= INT_MIN;
1907 static int lastSize= INT_MIN;
1908 static int lastStyle= INT_MIN;
1909 static int lastWeight= INT_MIN;
1910 static int lastDescender = INT_MIN;
1911 static int lastWidths[256]; /* widths of the characters */
1912
1913 double UnderlinePosition = 0.0;
1914 double UnderlineThickness = 0.0;
1915
1916 // Get actual parameters
1917 int Family = fontToUse->GetFamily();
1918 int Size = fontToUse->GetPointSize();
1919 int Style = fontToUse->GetStyle();
1920 int Weight = fontToUse->GetWeight();
1921
1922 // If we have another font, read the font-metrics
1923 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
1924 {
1925 // Store actual values
1926 lastFamily = Family;
1927 lastSize = Size;
1928 lastStyle = Style;
1929 lastWeight = Weight;
1930
1931 const wxChar *name;
1932
1933 switch (Family)
1934 {
1935 case wxMODERN:
1936 case wxTELETYPE:
1937 {
1938 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
1939 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
1940 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
1941 else name = wxT("Cour.afm");
1942 break;
1943 }
1944 case wxROMAN:
1945 {
1946 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
1947 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
1948 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
1949 else name = wxT("TimesRo.afm");
1950 break;
1951 }
1952 case wxSCRIPT:
1953 {
1954 name = wxT("Zapf.afm");
1955 break;
1956 }
1957 case wxSWISS:
1958 default:
1959 {
1960 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
1961 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
1962 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
1963 else name = wxT("Helv.afm");
1964 break;
1965 }
1966 }
1967
1968 FILE *afmFile = NULL;
1969
1970 wxPostScriptPrintNativeData *data =
1971 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1972
1973 // Get the directory of the AFM files
1974 wxString afmName;
1975 if (!data->GetFontMetricPath().empty())
1976 {
1977 afmName = data->GetFontMetricPath();
1978 afmName << wxFILE_SEP_PATH << name;
1979 afmFile = wxFopen(afmName,wxT("r"));
1980 }
1981
1982 #if defined(__UNIX__) && !defined(__VMS__)
1983 if (afmFile==NULL)
1984 {
1985 afmName = wxGetDataDir();
1986 afmName << wxFILE_SEP_PATH
1987 #if defined(__LINUX__) || defined(__FREEBSD__)
1988 << wxT("gs_afm") << wxFILE_SEP_PATH
1989 #else
1990 << wxT("afm") << wxFILE_SEP_PATH
1991 #endif
1992 << name;
1993 afmFile = wxFopen(afmName,wxT("r"));
1994 }
1995 #endif
1996
1997 /* 2. open and process the file
1998 / a short explanation of the AFM format:
1999 / we have for each character a line, which gives its size
2000 / e.g.:
2001 /
2002 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2003 /
2004 / that means, we have a character with ascii code 63, and width
2005 / (444/1000 * fontSize) points.
2006 / the other data is ignored for now!
2007 /
2008 / when the font has changed, we read in the right AFM file and store the
2009 / character widths in an array, which is processed below (see point 3.). */
2010 if (afmFile==NULL)
2011 {
2012 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2013 wxLogDebug( wxT(" using approximate values"));
2014 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2015 lastDescender = -150; /* dito. */
2016 }
2017 else
2018 {
2019 /* init the widths array */
2020 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2021 /* some variables for holding parts of a line */
2022 char cString[10], semiString[10], WXString[10];
2023 char descString[20];
2024 char upString[30], utString[30];
2025 char encString[50];
2026 char line[256];
2027 int ascii,cWidth;
2028 /* read in the file and parse it */
2029 while(fgets(line,sizeof(line),afmFile)!=NULL)
2030 {
2031 /* A.) check for descender definition */
2032 if (strncmp(line,"Descender",9)==0)
2033 {
2034 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2035 (strcmp(descString,"Descender")!=0))
2036 {
2037 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2038 }
2039 }
2040 /* JC 1.) check for UnderlinePosition */
2041 else if(strncmp(line,"UnderlinePosition",17)==0)
2042 {
2043 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2044 (strcmp(upString,"UnderlinePosition")!=0))
2045 {
2046 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2047 }
2048 }
2049 /* JC 2.) check for UnderlineThickness */
2050 else if(strncmp(line,"UnderlineThickness",18)==0)
2051 {
2052 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2053 (strcmp(utString,"UnderlineThickness")!=0))
2054 {
2055 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2056 }
2057 }
2058 /* JC 3.) check for EncodingScheme */
2059 else if(strncmp(line,"EncodingScheme",14)==0)
2060 {
2061 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2062 (strcmp(utString,"EncodingScheme")!=0))
2063 {
2064 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2065 }
2066 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2067 {
2068 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2069 afmName.c_str(),line, encString);
2070 }
2071 }
2072 /* B.) check for char-width */
2073 else if(strncmp(line,"C ",2)==0)
2074 {
2075 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2076 {
2077 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2078 }
2079 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2080 {
2081 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2082 }
2083 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2084 if (ascii>=0 && ascii<256)
2085 {
2086 lastWidths[ascii] = cWidth; /* store width */
2087 }
2088 else
2089 {
2090 /* MATTHEW: this happens a lot; don't print an error */
2091 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2092 }
2093 }
2094 /* C.) ignore other entries. */
2095 }
2096 fclose(afmFile);
2097 }
2098 /* hack to compute correct values for german 'Umlaute'
2099 / the correct way would be to map the character names
2100 / like 'adieresis' to corresp. positions of ISOEnc and read
2101 / these values from AFM files, too. Maybe later ... */
2102
2103 // NB: casts to int are needed to suppress gcc 3.3 warnings
2104 lastWidths[196] = lastWidths[(int)'A']; // Ä
2105 lastWidths[228] = lastWidths[(int)'a']; // ä
2106 lastWidths[214] = lastWidths[(int)'O']; // Ö
2107 lastWidths[246] = lastWidths[(int)'o']; // ö
2108 lastWidths[220] = lastWidths[(int)'U']; // Ü
2109 lastWidths[252] = lastWidths[(int)'u']; // ü
2110 lastWidths[223] = lastWidths[(int)251]; // ß
2111
2112 /* JC: calculate UnderlineThickness/UnderlinePosition */
2113
2114 // VS: dirty, but is there any better solution?
2115 double *pt;
2116 pt = (double*) &m_underlinePosition;
2117 *pt = LogicalToDeviceYRel((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2118 pt = (double*) &m_underlineThickness;
2119 *pt = LogicalToDeviceYRel((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2120
2121 }
2122
2123
2124 /* 3. now the font metrics are read in, calc size this
2125 / is done by adding the widths of the characters in the
2126 / string. they are given in 1/1000 of the size! */
2127
2128 long sum=0;
2129 wxCoord height=Size; /* by default */
2130 unsigned char *p;
2131 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2132 {
2133 if(lastWidths[*p]== INT_MIN)
2134 {
2135 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2136 sum += lastWidths[(unsigned char)' ']; /* assume space */
2137 }
2138 else
2139 {
2140 sum += lastWidths[*p];
2141 }
2142 }
2143
2144 double widthSum = sum;
2145 widthSum *= Size;
2146 widthSum /= 1000.0F;
2147
2148 /* add descender to height (it is usually a negative value) */
2149 //if (lastDescender != INT_MIN)
2150 //{
2151 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2152 //}
2153 // - commented by V. Slavik - height already contains descender in it
2154 // (judging from few experiments)
2155
2156 /* return size values */
2157 if ( x )
2158 *x = (wxCoord)widthSum;
2159 if ( y )
2160 *y = height;
2161
2162 /* return other parameters */
2163 if (descent)
2164 {
2165 if(lastDescender!=INT_MIN)
2166 {
2167 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2168 }
2169 else
2170 {
2171 *descent = 0;
2172 }
2173 }
2174
2175 /* currently no idea how to calculate this! */
2176 if (externalLeading) *externalLeading = 0;
2177 #endif
2178 // Use AFM
2179 }
2180
2181 // print postscript datas via required method (file, stream)
2182 void wxPostScriptDC::PsPrintf( const wxChar* fmt, ... )
2183 {
2184 va_list argptr;
2185 va_start(argptr, fmt);
2186
2187 PsPrint( wxString::FormatV( fmt, argptr ).c_str() );
2188 }
2189
2190 void wxPostScriptDC::PsPrint( const char* psdata )
2191 {
2192 wxPostScriptPrintNativeData *data =
2193 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2194
2195 switch (m_printData.GetPrintMode())
2196 {
2197 #if wxUSE_STREAMS
2198 // append to output stream
2199 case wxPRINT_MODE_STREAM:
2200 {
2201 wxOutputStream* outputstream = data->GetOutputStream();
2202 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2203 outputstream->Write( psdata, strlen( psdata ) );
2204 }
2205 break;
2206 #endif // wxUSE_STREAMS
2207
2208 // save data into file
2209 default:
2210 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2211 fwrite( psdata, 1, strlen( psdata ), m_pstream );
2212 }
2213 }
2214
2215 void wxPostScriptDC::PsPrint( int ch )
2216 {
2217 wxPostScriptPrintNativeData *data =
2218 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2219
2220 switch (m_printData.GetPrintMode())
2221 {
2222 #if wxUSE_STREAMS
2223 // append to output stream
2224 case wxPRINT_MODE_STREAM:
2225 {
2226 wxOutputStream* outputstream = data->GetOutputStream();
2227 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2228 outputstream->PutC( (char)ch );
2229 }
2230 break;
2231 #endif // wxUSE_STREAMS
2232
2233 // save data into file
2234 default:
2235 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2236 fputc( ch, m_pstream );
2237 }
2238 }
2239
2240 #endif
2241 // wxUSE_POSTSCRIPT
2242
2243 #endif
2244 // wxUSE_PRINTING_ARCHITECTURE
2245
2246
2247 // vi:sts=4:sw=4:et
wxWidgets (Impactor)