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[wxWidgets.git] / src / generic / dcpsg.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: src/generic/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 #include "wx/wxprec.h"
13
14 #ifdef __BORLANDC__
15 #pragma hdrstop
16 #endif
17
18 #if wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT
19
20 #include "wx/generic/dcpsg.h"
21
22 #ifndef WX_PRECOMP
23 #include "wx/intl.h"
24 #include "wx/log.h"
25 #include "wx/app.h"
26 #include "wx/utils.h"
27 #include "wx/dcmemory.h"
28 #include "wx/math.h"
29 #include "wx/image.h"
30 #endif // WX_PRECOMP
31
32 #include "wx/prntbase.h"
33 #include "wx/generic/prntdlgg.h"
34 #include "wx/paper.h"
35 #include "wx/filefn.h"
36 #include "wx/stdpaths.h"
37
38 WXDLLIMPEXP_DATA_CORE(int) wxPageNumber;
39
40 #ifdef __WXMSW__
41
42 #ifdef DrawText
43 #undef DrawText
44 #endif
45
46 #ifdef StartDoc
47 #undef StartDoc
48 #endif
49
50 #ifdef GetCharWidth
51 #undef GetCharWidth
52 #endif
53
54 #ifdef FindWindow
55 #undef FindWindow
56 #endif
57
58 #endif
59
60 //-----------------------------------------------------------------------------
61 // start and end of document/page
62 //-----------------------------------------------------------------------------
63
64 static const char *wxPostScriptHeaderConicTo = "\
65 /conicto {\n\
66 /to_y exch def\n\
67 /to_x exch def\n\
68 /conic_cntrl_y exch def\n\
69 /conic_cntrl_x exch def\n\
70 currentpoint\n\
71 /p0_y exch def\n\
72 /p0_x exch def\n\
73 /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\
74 /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\
75 /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\
76 /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\
77 p1_x p1_y p2_x p2_y to_x to_y curveto\n\
78 } bind def\n\
79 ";
80
81 static const char *wxPostScriptHeaderEllipse = "\
82 /ellipsedict 8 dict def\n\
83 ellipsedict /mtrx matrix put\n\
84 /ellipse {\n\
85 ellipsedict begin\n\
86 /endangle exch def\n\
87 /startangle exch def\n\
88 /yrad exch def\n\
89 /xrad exch def\n\
90 /y exch def\n\
91 /x exch def\n\
92 /savematrix mtrx currentmatrix def\n\
93 x y translate\n\
94 xrad yrad scale\n\
95 0 0 1 startangle endangle arc\n\
96 savematrix setmatrix\n\
97 end\n\
98 } def\n\
99 ";
100
101 static const char *wxPostScriptHeaderEllipticArc= "\
102 /ellipticarcdict 8 dict def\n\
103 ellipticarcdict /mtrx matrix put\n\
104 /ellipticarc\n\
105 { ellipticarcdict begin\n\
106 /do_fill exch def\n\
107 /endangle exch def\n\
108 /startangle exch def\n\
109 /yrad exch def\n\
110 /xrad exch def \n\
111 /y exch def\n\
112 /x exch def\n\
113 /savematrix mtrx currentmatrix def\n\
114 x y translate\n\
115 xrad yrad scale\n\
116 do_fill { 0 0 moveto } if\n\
117 0 0 1 startangle endangle arc\n\
118 savematrix setmatrix\n\
119 do_fill { fill }{ stroke } ifelse\n\
120 end\n\
121 } def\n";
122
123 static const char *wxPostScriptHeaderSpline = "\
124 /DrawSplineSection {\n\
125 /y3 exch def\n\
126 /x3 exch def\n\
127 /y2 exch def\n\
128 /x2 exch def\n\
129 /y1 exch def\n\
130 /x1 exch def\n\
131 /xa x1 x2 x1 sub 0.666667 mul add def\n\
132 /ya y1 y2 y1 sub 0.666667 mul add def\n\
133 /xb x3 x2 x3 sub 0.666667 mul add def\n\
134 /yb y3 y2 y3 sub 0.666667 mul add def\n\
135 x1 y1 lineto\n\
136 xa ya xb yb x3 y3 curveto\n\
137 } def\n\
138 ";
139
140 static const char *wxPostScriptHeaderColourImage = "\
141 % define 'colorimage' if it isn't defined\n\
142 % ('colortogray' and 'mergeprocs' come from xwd2ps\n\
143 % via xgrab)\n\
144 /colorimage where % do we know about 'colorimage'?\n\
145 { pop } % yes: pop off the 'dict' returned\n\
146 { % no: define one\n\
147 /colortogray { % define an RGB->I function\n\
148 /rgbdata exch store % call input 'rgbdata'\n\
149 rgbdata length 3 idiv\n\
150 /npixls exch store\n\
151 /rgbindx 0 store\n\
152 0 1 npixls 1 sub {\n\
153 grays exch\n\
154 rgbdata rgbindx get 20 mul % Red\n\
155 rgbdata rgbindx 1 add get 32 mul % Green\n\
156 rgbdata rgbindx 2 add get 12 mul % Blue\n\
157 add add 64 idiv % I = .5G + .31R + .18B\n\
158 put\n\
159 /rgbindx rgbindx 3 add store\n\
160 } for\n\
161 grays 0 npixls getinterval\n\
162 } bind def\n\
163 \n\
164 % Utility procedure for colorimage operator.\n\
165 % This procedure takes two procedures off the\n\
166 % stack and merges them into a single procedure.\n\
167 \n\
168 /mergeprocs { % def\n\
169 dup length\n\
170 3 -1 roll\n\
171 dup\n\
172 length\n\
173 dup\n\
174 5 1 roll\n\
175 3 -1 roll\n\
176 add\n\
177 array cvx\n\
178 dup\n\
179 3 -1 roll\n\
180 0 exch\n\
181 putinterval\n\
182 dup\n\
183 4 2 roll\n\
184 putinterval\n\
185 } bind def\n\
186 \n\
187 /colorimage { % def\n\
188 pop pop % remove 'false 3' operands\n\
189 {colortogray} mergeprocs\n\
190 image\n\
191 } bind def\n\
192 } ifelse % end of 'false' case\n\
193 ";
194
195 static char wxPostScriptHeaderReencodeISO1[] =
196 "\n/reencodeISO {\n"
197 "dup dup findfont dup length dict begin\n"
198 "{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
199 "/Encoding ISOLatin1Encoding def\n"
200 "currentdict end definefont\n"
201 "} def\n"
202 "/ISOLatin1Encoding [\n"
203 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
204 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
205 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
206 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
207 "/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
208 "/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
209 "/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
210 "/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
211 "/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
212 "/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
213 "/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
214 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
215 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
216 "/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
217 "/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
218
219 static char wxPostScriptHeaderReencodeISO2[] =
220 "/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
221 "/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
222 "/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
223 "/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
224 "/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
225 "/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
226 "/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
227 "/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
228 "/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
229 "/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
230 "/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
231 "/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
232 "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
233 "/yacute/thorn/ydieresis\n"
234 "] def\n\n";
235
236 //-------------------------------------------------------------------------------
237 // wxPostScriptDC
238 //-------------------------------------------------------------------------------
239
240 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
241
242 float wxPostScriptDC::ms_PSScaleFactor = 1.0;
243
244 void wxPostScriptDC::SetResolution(int ppi)
245 {
246 ms_PSScaleFactor = (float)ppi / 72.0;
247 }
248
249 int wxPostScriptDC::GetResolution()
250 {
251 return (int)(ms_PSScaleFactor * 72.0);
252 }
253
254 //-------------------------------------------------------------------------------
255
256 wxPostScriptDC::wxPostScriptDC ()
257 {
258 m_pstream = (FILE*) NULL;
259
260 m_currentRed = 0;
261 m_currentGreen = 0;
262 m_currentBlue = 0;
263
264 m_pageNumber = 0;
265
266 m_clipping = false;
267
268 m_underlinePosition = 0.0;
269 m_underlineThickness = 0.0;
270
271 m_signX = 1; // default x-axis left to right
272 m_signY = -1; // default y-axis bottom up -> top down
273 }
274
275 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
276 {
277 m_pstream = (FILE*) NULL;
278
279 m_currentRed = 0;
280 m_currentGreen = 0;
281 m_currentBlue = 0;
282
283 m_pageNumber = 0;
284
285 m_clipping = false;
286
287 m_underlinePosition = 0.0;
288 m_underlineThickness = 0.0;
289
290 m_signX = 1; // default x-axis left to right
291 m_signY = -1; // default y-axis bottom up -> top down
292
293 m_printData = printData;
294
295 m_ok = true;
296 }
297
298 wxPostScriptDC::~wxPostScriptDC ()
299 {
300 if (m_pstream)
301 {
302 fclose( m_pstream );
303 m_pstream = (FILE*) NULL;
304 }
305 }
306
307 bool wxPostScriptDC::Ok() const
308 {
309 return m_ok;
310 }
311
312 void wxPostScriptDC::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
313 {
314 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
315
316 if (m_clipping) DestroyClippingRegion();
317
318 wxDC::DoSetClippingRegion(x, y, w, h);
319
320 m_clipping = true;
321
322 PsPrintf( wxT("gsave\n newpath\n")
323 wxT("%d %d moveto\n")
324 wxT("%d %d lineto\n")
325 wxT("%d %d lineto\n")
326 wxT("%d %d lineto\n")
327 wxT("closepath clip newpath\n"),
328 LogicalToDeviceX(x), LogicalToDeviceY(y),
329 LogicalToDeviceX(x+w), LogicalToDeviceY(y),
330 LogicalToDeviceX(x+w), LogicalToDeviceY(y+h),
331 LogicalToDeviceX(x), LogicalToDeviceY(y+h) );
332 }
333
334
335 void wxPostScriptDC::DestroyClippingRegion()
336 {
337 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
338
339 if (m_clipping)
340 {
341 m_clipping = false;
342 PsPrint( "grestore\n" );
343 }
344
345 wxDC::DestroyClippingRegion();
346 }
347
348 void wxPostScriptDC::Clear()
349 {
350 // This should fail silently to avoid unnecessary
351 // asserts
352 // wxFAIL_MSG( wxT("wxPostScriptDC::Clear not implemented.") );
353 }
354
355 bool wxPostScriptDC::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
356 {
357 wxFAIL_MSG( wxT("wxPostScriptDC::FloodFill not implemented.") );
358 return false;
359 }
360
361 bool wxPostScriptDC::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
362 {
363 wxFAIL_MSG( wxT("wxPostScriptDC::GetPixel not implemented.") );
364 return false;
365 }
366
367 void wxPostScriptDC::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
368 {
369 wxFAIL_MSG( wxT("wxPostScriptDC::CrossHair not implemented.") );
370 }
371
372 void wxPostScriptDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
373 {
374 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
375
376 if (m_pen.GetStyle() == wxTRANSPARENT) return;
377
378 SetPen( m_pen );
379
380 PsPrintf( wxT("newpath\n")
381 wxT("%d %d moveto\n")
382 wxT("%d %d lineto\n")
383 wxT("stroke\n"),
384 LogicalToDeviceX(x1), LogicalToDeviceY(y1),
385 LogicalToDeviceX(x2), LogicalToDeviceY (y2) );
386
387 CalcBoundingBox( x1, y1 );
388 CalcBoundingBox( x2, y2 );
389 }
390
391 #define RAD2DEG 57.29577951308
392
393 void wxPostScriptDC::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
394 {
395 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
396
397 wxCoord dx = x1 - xc;
398 wxCoord dy = y1 - yc;
399 wxCoord radius = (wxCoord) sqrt( (double)(dx*dx+dy*dy) );
400 double alpha1, alpha2;
401
402 if (x1 == x2 && y1 == y2)
403 {
404 alpha1 = 0.0;
405 alpha2 = 360.0;
406 }
407 else if ( wxIsNullDouble(radius) )
408 {
409 alpha1 =
410 alpha2 = 0.0;
411 }
412 else
413 {
414 alpha1 = (x1 - xc == 0) ?
415 (y1 - yc < 0) ? 90.0 : -90.0 :
416 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
417 alpha2 = (x2 - xc == 0) ?
418 (y2 - yc < 0) ? 90.0 : -90.0 :
419 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
420 }
421 while (alpha1 <= 0) alpha1 += 360;
422 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
423 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
424 while (alpha2 > 360) alpha2 -= 360;
425
426 if (m_brush.GetStyle() != wxTRANSPARENT)
427 {
428 SetBrush( m_brush );
429
430 PsPrintf( wxT("newpath\n")
431 wxT("%d %d %d %d %d %d ellipse\n")
432 wxT("%d %d lineto\n")
433 wxT("closepath\n")
434 wxT("fill\n"),
435 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
436 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
437
438 CalcBoundingBox( xc-radius, yc-radius );
439 CalcBoundingBox( xc+radius, yc+radius );
440 }
441
442 if (m_pen.GetStyle() != wxTRANSPARENT)
443 {
444 SetPen( m_pen );
445
446 PsPrintf( wxT("newpath\n")
447 wxT("%d %d %d %d %d %d ellipse\n")
448 wxT("%d %d lineto\n")
449 wxT("stroke\n")
450 wxT("fill\n"),
451 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
452 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
453
454 CalcBoundingBox( xc-radius, yc-radius );
455 CalcBoundingBox( xc+radius, yc+radius );
456 }
457 }
458
459 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
460 {
461 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
462
463 if ( sa >= 360 || sa <= -360 )
464 sa -= int(sa/360)*360;
465 if ( ea >= 360 || ea <=- 360 )
466 ea -= int(ea/360)*360;
467 if ( sa < 0 )
468 sa += 360;
469 if ( ea < 0 )
470 ea += 360;
471
472 if ( wxIsSameDouble(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 lineto\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 + height - 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 lineto\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 + height - 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 // size of the buffer = width*rgb(3)*hexa(2)+'\n'
877 wxCharBuffer buffer(w*6 + 1);
878 int firstDigit, secondDigit;
879
880 //rows
881 for (int j = 0; j < h; j++)
882 {
883 char* bufferindex = buffer.data();
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 wxUSER_DASH:
1042 {
1043 wxDash *dashes;
1044 int nDashes = m_pen.GetDashes (&dashes);
1045 PsPrint ("[");
1046 for (int i = 0; i < nDashes; ++i)
1047 {
1048 sprintf( buffer, "%d ", dashes [i] );
1049 PsPrint( buffer );
1050 }
1051 PsPrint ("] 0 setdash\n");
1052 psdash = 0;
1053 }
1054 break;
1055 case wxSOLID:
1056 case wxTRANSPARENT:
1057 default: psdash = "[] 0"; break;
1058 }
1059
1060 if ( psdash && (oldStyle != m_pen.GetStyle()) )
1061 {
1062 PsPrint( psdash );
1063 PsPrint( " setdash\n" );
1064 }
1065
1066 // Line colour
1067 unsigned char red = m_pen.GetColour().Red();
1068 unsigned char blue = m_pen.GetColour().Blue();
1069 unsigned char green = m_pen.GetColour().Green();
1070
1071 if (!m_colour)
1072 {
1073 // Anything not white is black
1074 if (! (red == (unsigned char) 255 &&
1075 blue == (unsigned char) 255 &&
1076 green == (unsigned char) 255) )
1077 {
1078 red = (unsigned char) 0;
1079 green = (unsigned char) 0;
1080 blue = (unsigned char) 0;
1081 }
1082 // setgray here ?
1083 }
1084
1085 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1086 {
1087 double redPS = (double)(red) / 255.0;
1088 double bluePS = (double)(blue) / 255.0;
1089 double greenPS = (double)(green) / 255.0;
1090
1091 sprintf( buffer,
1092 "%.8f %.8f %.8f setrgbcolor\n",
1093 redPS, greenPS, bluePS );
1094 for (int i = 0; i < 100; i++)
1095 if (buffer[i] == ',') buffer[i] = '.';
1096
1097 PsPrint( buffer );
1098
1099 m_currentRed = red;
1100 m_currentBlue = blue;
1101 m_currentGreen = green;
1102 }
1103 }
1104
1105 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1106 {
1107 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1108
1109 if (!brush.Ok()) return;
1110
1111 m_brush = brush;
1112
1113 // Brush colour
1114 unsigned char red = m_brush.GetColour().Red();
1115 unsigned char blue = m_brush.GetColour().Blue();
1116 unsigned char green = m_brush.GetColour().Green();
1117
1118 if (!m_colour)
1119 {
1120 // Anything not white is black
1121 if (! (red == (unsigned char) 255 &&
1122 blue == (unsigned char) 255 &&
1123 green == (unsigned char) 255) )
1124 {
1125 red = (unsigned char) 0;
1126 green = (unsigned char) 0;
1127 blue = (unsigned char) 0;
1128 }
1129 // setgray here ?
1130 }
1131
1132 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1133 {
1134 double redPS = (double)(red) / 255.0;
1135 double bluePS = (double)(blue) / 255.0;
1136 double greenPS = (double)(green) / 255.0;
1137
1138 char buffer[100];
1139 sprintf( buffer,
1140 "%.8f %.8f %.8f setrgbcolor\n",
1141 redPS, greenPS, bluePS );
1142 for (int i = 0; i < 100; i++)
1143 if (buffer[i] == ',') buffer[i] = '.';
1144
1145 PsPrint( buffer );
1146
1147 m_currentRed = red;
1148 m_currentBlue = blue;
1149 m_currentGreen = green;
1150 }
1151 }
1152
1153 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1154 {
1155 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1156
1157 if (m_textForegroundColour.Ok())
1158 {
1159 unsigned char red = m_textForegroundColour.Red();
1160 unsigned char blue = m_textForegroundColour.Blue();
1161 unsigned char green = m_textForegroundColour.Green();
1162
1163 if (!m_colour)
1164 {
1165 // Anything not white is black
1166 if (! (red == (unsigned char) 255 &&
1167 blue == (unsigned char) 255 &&
1168 green == (unsigned char) 255))
1169 {
1170 red = (unsigned char) 0;
1171 green = (unsigned char) 0;
1172 blue = (unsigned char) 0;
1173 }
1174 }
1175
1176 // maybe setgray here ?
1177 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1178 {
1179 double redPS = (double)(red) / 255.0;
1180 double bluePS = (double)(blue) / 255.0;
1181 double greenPS = (double)(green) / 255.0;
1182
1183 char buffer[100];
1184 sprintf( buffer,
1185 "%.8f %.8f %.8f setrgbcolor\n",
1186 redPS, greenPS, bluePS );
1187 for (size_t i = 0; i < strlen(buffer); i++)
1188 if (buffer[i] == ',') buffer[i] = '.';
1189 PsPrint( buffer );
1190
1191 m_currentRed = red;
1192 m_currentBlue = blue;
1193 m_currentGreen = green;
1194 }
1195 }
1196
1197 wxCoord text_w, text_h, text_descent;
1198
1199 GetTextExtent(text, &text_w, &text_h, &text_descent);
1200
1201 // VZ: this seems to be unnecessary, so taking it out for now, if it
1202 // doesn't create any problems, remove this comment entirely
1203 //SetFont( m_font );
1204
1205
1206 int size = m_font.GetPointSize();
1207
1208 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1209 // commented by V. Slavik and replaced by accurate version
1210 // - note that there is still rounding error in text_descent!
1211 wxCoord by = y + size - text_descent; // baseline
1212
1213 PsPrintf( wxT("%d %d moveto\n"), LogicalToDeviceX(x), LogicalToDeviceY(by) );
1214 PsPrint( "(" );
1215
1216 const wxWX2MBbuf textbuf = text.mb_str();
1217 size_t len = strlen(textbuf);
1218 size_t i;
1219 for (i = 0; i < len; i++)
1220 {
1221 int c = (unsigned char) textbuf[i];
1222 if (c == ')' || c == '(' || c == '\\')
1223 {
1224 /* Cope with special characters */
1225 PsPrint( "\\" );
1226 PsPrint(c);
1227 }
1228 else if ( c >= 128 )
1229 {
1230 /* Cope with character codes > 127 */
1231 PsPrintf( wxT("\\%o"), c);
1232 }
1233 else
1234 {
1235 PsPrint(c);
1236 }
1237 }
1238
1239 PsPrint( ") show\n" );
1240
1241 if (m_font.GetUnderlined())
1242 {
1243 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1244 char buffer[100];
1245
1246 sprintf( buffer,
1247 "gsave\n"
1248 "%d %d moveto\n"
1249 "%f setlinewidth\n"
1250 "%d %d lineto\n"
1251 "stroke\n"
1252 "grestore\n",
1253 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1254 m_underlineThickness,
1255 LogicalToDeviceX(x + text_w), LogicalToDeviceY(uy) );
1256 for (i = 0; i < 100; i++)
1257 if (buffer[i] == ',') buffer[i] = '.';
1258 PsPrint( buffer );
1259 }
1260
1261 CalcBoundingBox( x, y );
1262 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1263 }
1264
1265 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1266 {
1267 if ( wxIsNullDouble(angle) )
1268 {
1269 DoDrawText(text, x, y);
1270 return;
1271 }
1272
1273 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1274
1275 SetFont( m_font );
1276
1277 if (m_textForegroundColour.Ok())
1278 {
1279 unsigned char red = m_textForegroundColour.Red();
1280 unsigned char blue = m_textForegroundColour.Blue();
1281 unsigned char green = m_textForegroundColour.Green();
1282
1283 if (!m_colour)
1284 {
1285 // Anything not white is black
1286 if (! (red == (unsigned char) 255 &&
1287 blue == (unsigned char) 255 &&
1288 green == (unsigned char) 255))
1289 {
1290 red = (unsigned char) 0;
1291 green = (unsigned char) 0;
1292 blue = (unsigned char) 0;
1293 }
1294 }
1295
1296 // maybe setgray here ?
1297 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1298 {
1299 double redPS = (double)(red) / 255.0;
1300 double bluePS = (double)(blue) / 255.0;
1301 double greenPS = (double)(green) / 255.0;
1302
1303 char buffer[100];
1304 sprintf( buffer,
1305 "%.8f %.8f %.8f setrgbcolor\n",
1306 redPS, greenPS, bluePS );
1307 for (int i = 0; i < 100; i++)
1308 if (buffer[i] == ',') buffer[i] = '.';
1309 PsPrint( buffer );
1310
1311 m_currentRed = red;
1312 m_currentBlue = blue;
1313 m_currentGreen = green;
1314 }
1315 }
1316
1317 int size = m_font.GetPointSize();
1318
1319 PsPrintf( wxT("%d %d moveto\n"),
1320 LogicalToDeviceX(x), LogicalToDeviceY(y));
1321
1322 char buffer[100];
1323 sprintf(buffer, "%.8f rotate\n", angle);
1324 size_t i;
1325 for (i = 0; i < 100; i++)
1326 {
1327 if (buffer[i] == ',') buffer[i] = '.';
1328 }
1329 PsPrint( buffer);
1330
1331 PsPrint( "(" );
1332 const wxWX2MBbuf textbuf = text.mb_str();
1333 size_t len = strlen(textbuf);
1334 for (i = 0; i < len; i++)
1335 {
1336 int c = (unsigned char) textbuf[i];
1337 if (c == ')' || c == '(' || c == '\\')
1338 {
1339 /* Cope with special characters */
1340 PsPrint( "\\" );
1341 PsPrint(c);
1342 }
1343 else if ( c >= 128 )
1344 {
1345 /* Cope with character codes > 127 */
1346 PsPrintf( wxT("\\%o"), c);
1347 }
1348 else
1349 {
1350 PsPrint(c);
1351 }
1352 }
1353
1354 PsPrint( ") show\n" );
1355
1356 sprintf( buffer, "%.8f rotate\n", -angle );
1357 for (i = 0; i < 100; i++)
1358 {
1359 if (buffer[i] == ',') buffer[i] = '.';
1360 }
1361 PsPrint( buffer );
1362
1363 if (m_font.GetUnderlined())
1364 {
1365 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1366 wxCoord w, h;
1367 GetTextExtent(text, &w, &h);
1368
1369 sprintf( buffer,
1370 "gsave\n"
1371 "%d %d moveto\n"
1372 "%f setlinewidth\n"
1373 "%d %d lineto\n"
1374 "stroke\n"
1375 "grestore\n",
1376 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1377 m_underlineThickness,
1378 LogicalToDeviceX(x + w), LogicalToDeviceY(uy) );
1379 for (i = 0; i < 100; i++)
1380 {
1381 if (buffer[i] == ',') buffer[i] = '.';
1382 }
1383 PsPrint( buffer );
1384 }
1385
1386 CalcBoundingBox( x, y );
1387 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1388 }
1389
1390 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1391 {
1392 m_backgroundBrush = brush;
1393 }
1394
1395 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1396 {
1397 wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1398 }
1399
1400 #if wxUSE_SPLINES
1401 void wxPostScriptDC::DoDrawSpline( wxList *points )
1402 {
1403 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1404
1405 SetPen( m_pen );
1406
1407 // a and b are not used
1408 //double a, b;
1409 double c, d, x1, y1, x2, y2, x3, y3;
1410 wxPoint *p, *q;
1411
1412 wxList::compatibility_iterator node = points->GetFirst();
1413 p = (wxPoint *)node->GetData();
1414 x1 = p->x;
1415 y1 = p->y;
1416
1417 node = node->GetNext();
1418 p = (wxPoint *)node->GetData();
1419 c = p->x;
1420 d = p->y;
1421 x3 =
1422 #if 0
1423 a =
1424 #endif
1425 (double)(x1 + c) / 2;
1426 y3 =
1427 #if 0
1428 b =
1429 #endif
1430 (double)(y1 + d) / 2;
1431
1432 PsPrintf( wxT("newpath\n")
1433 wxT("%d %d moveto\n")
1434 wxT("%d %d lineto\n"),
1435 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1436 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1437
1438 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1439 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1440
1441 node = node->GetNext();
1442 while (node)
1443 {
1444 q = (wxPoint *)node->GetData();
1445
1446 x1 = x3;
1447 y1 = y3;
1448 x2 = c;
1449 y2 = d;
1450 c = q->x;
1451 d = q->y;
1452 x3 = (double)(x2 + c) / 2;
1453 y3 = (double)(y2 + d) / 2;
1454
1455 PsPrintf( wxT("%d %d %d %d %d %d DrawSplineSection\n"),
1456 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1457 LogicalToDeviceX((wxCoord)x2), LogicalToDeviceY((wxCoord)y2),
1458 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1459
1460 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1461 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1462
1463 node = node->GetNext();
1464 }
1465
1466 /*
1467 At this point, (x2,y2) and (c,d) are the position of the
1468 next-to-last and last point respectively, in the point list
1469 */
1470
1471 PsPrintf( wxT("%d %d lineto\n")
1472 wxT("stroke\n"),
1473 LogicalToDeviceX((wxCoord)c), LogicalToDeviceY((wxCoord)d) );
1474 }
1475 #endif // wxUSE_SPLINES
1476
1477 wxCoord wxPostScriptDC::GetCharWidth() const
1478 {
1479 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1480 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1481 }
1482
1483
1484 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1485 {
1486 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1487
1488 m_signX = (xLeftRight ? 1 : -1);
1489 m_signY = (yBottomUp ? 1 : -1);
1490
1491 ComputeScaleAndOrigin();
1492 }
1493
1494 void wxPostScriptDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1495 {
1496 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1497
1498 int h = 0;
1499 int w = 0;
1500 GetSize( &w, &h );
1501
1502 wxDC::SetDeviceOrigin( x, h-y );
1503 }
1504
1505 void wxPostScriptDC::DoGetSize(int* width, int* height) const
1506 {
1507 wxPaperSize id = m_printData.GetPaperId();
1508
1509 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1510
1511 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1512
1513 int w = 595;
1514 int h = 842;
1515 if (paper)
1516 {
1517 w = paper->GetSizeDeviceUnits().x;
1518 h = paper->GetSizeDeviceUnits().y;
1519 }
1520
1521 if (m_printData.GetOrientation() == wxLANDSCAPE)
1522 {
1523 int tmp = w;
1524 w = h;
1525 h = tmp;
1526 }
1527
1528 if (width) *width = (int)(w * ms_PSScaleFactor);
1529 if (height) *height = (int)(h * ms_PSScaleFactor);
1530 }
1531
1532 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1533 {
1534 wxPaperSize id = m_printData.GetPaperId();
1535
1536 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1537
1538 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1539
1540 int w = 210;
1541 int h = 297;
1542 if (paper)
1543 {
1544 w = paper->GetWidth() / 10;
1545 h = paper->GetHeight() / 10;
1546 }
1547
1548 if (m_printData.GetOrientation() == wxLANDSCAPE)
1549 {
1550 int tmp = w;
1551 w = h;
1552 h = tmp;
1553 }
1554
1555 if (width) *width = w;
1556 if (height) *height = h;
1557 }
1558
1559 // Resolution in pixels per logical inch
1560 wxSize wxPostScriptDC::GetPPI(void) const
1561 {
1562 return wxSize((int)(72 * ms_PSScaleFactor),
1563 (int)(72 * ms_PSScaleFactor));
1564 }
1565
1566
1567 bool wxPostScriptDC::StartDoc( const wxString& message )
1568 {
1569 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1570
1571 if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1572 {
1573 if (m_printData.GetFilename() == wxEmptyString)
1574 {
1575 wxString filename = wxGetTempFileName( wxT("ps") );
1576 m_printData.SetFilename(filename);
1577 }
1578
1579 m_pstream = wxFopen( m_printData.GetFilename(), wxT("w+") );
1580
1581 if (!m_pstream)
1582 {
1583 wxLogError( _("Cannot open file for PostScript printing!"));
1584 m_ok = false;
1585 return false;
1586 }
1587 }
1588
1589 m_ok = true;
1590 m_title = message;
1591
1592 PsPrint( "%!PS-Adobe-2.0\n" );
1593 PsPrintf( wxT("%%%%Title: %s\n"), m_title.c_str() );
1594 PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1595 PsPrintf( wxT("%%%%CreationDate: %s\n"), wxNow().c_str() );
1596 if (m_printData.GetOrientation() == wxLANDSCAPE)
1597 PsPrint( "%%Orientation: Landscape\n" );
1598 else
1599 PsPrint( "%%Orientation: Portrait\n" );
1600
1601 // PsPrintf( wxT("%%%%Pages: %d\n"), (wxPageNumber - 1) );
1602
1603 const wxChar *paper;
1604 switch (m_printData.GetPaperId())
1605 {
1606 case wxPAPER_LETTER: paper = wxT("Letter"); break; // Letter: paper ""; 8 1/2 by 11 inches
1607 case wxPAPER_LEGAL: paper = wxT("Legal"); break; // Legal, 8 1/2 by 14 inches
1608 case wxPAPER_A4: paper = wxT("A4"); break; // A4 Sheet, 210 by 297 millimeters
1609 case wxPAPER_TABLOID: paper = wxT("Tabloid"); break; // Tabloid, 11 by 17 inches
1610 case wxPAPER_LEDGER: paper = wxT("Ledger"); break; // Ledger, 17 by 11 inches
1611 case wxPAPER_STATEMENT: paper = wxT("Statement"); break; // Statement, 5 1/2 by 8 1/2 inches
1612 case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break; // Executive, 7 1/4 by 10 1/2 inches
1613 case wxPAPER_A3: paper = wxT("A3"); break; // A3 sheet, 297 by 420 millimeters
1614 case wxPAPER_A5: paper = wxT("A5"); break; // A5 sheet, 148 by 210 millimeters
1615 case wxPAPER_B4: paper = wxT("B4"); break; // B4 sheet, 250 by 354 millimeters
1616 case wxPAPER_B5: paper = wxT("B5"); break; // B5 sheet, 182-by-257-millimeter paper
1617 case wxPAPER_FOLIO: paper = wxT("Folio"); break; // Folio, 8-1/2-by-13-inch paper
1618 case wxPAPER_QUARTO: paper = wxT("Quaro"); break; // Quarto, 215-by-275-millimeter paper
1619 case wxPAPER_10X14: paper = wxT("10x14"); break; // 10-by-14-inch sheet
1620 default: paper = wxT("A4");
1621 }
1622 PsPrintf( wxT("%%%%DocumentPaperSizes: %s\n"), paper );
1623 PsPrint( "%%EndComments\n\n" );
1624
1625 PsPrint( "%%BeginProlog\n" );
1626 PsPrint( wxPostScriptHeaderConicTo );
1627 PsPrint( wxPostScriptHeaderEllipse );
1628 PsPrint( wxPostScriptHeaderEllipticArc );
1629 PsPrint( wxPostScriptHeaderColourImage );
1630 PsPrint( wxPostScriptHeaderReencodeISO1 );
1631 PsPrint( wxPostScriptHeaderReencodeISO2 );
1632 if (wxPostScriptHeaderSpline)
1633 PsPrint( wxPostScriptHeaderSpline );
1634 PsPrint( "%%EndProlog\n" );
1635
1636 SetBrush( *wxBLACK_BRUSH );
1637 SetPen( *wxBLACK_PEN );
1638 SetBackground( *wxWHITE_BRUSH );
1639 SetTextForeground( *wxBLACK );
1640
1641 // set origin according to paper size
1642 SetDeviceOrigin( 0,0 );
1643
1644 wxPageNumber = 1;
1645 m_pageNumber = 1;
1646 return true;
1647 }
1648
1649 void wxPostScriptDC::EndDoc ()
1650 {
1651 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1652
1653 if (m_clipping)
1654 {
1655 m_clipping = false;
1656 PsPrint( "grestore\n" );
1657 }
1658
1659 if ( m_pstream ) {
1660 fclose( m_pstream );
1661 m_pstream = (FILE *) NULL;
1662 }
1663
1664 #if 0
1665 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1666 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1667 double wx_printer_scale_x, wx_printer_scale_y;
1668
1669 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1670 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1671
1672 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1673 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1674
1675 // Compute the bounding box. Note that it is in the default user
1676 // coordinate system, thus we have to convert the values.
1677 wxCoord minX = (wxCoord) LogicalToDeviceX(m_minX);
1678 wxCoord minY = (wxCoord) LogicalToDeviceY(m_minY);
1679 wxCoord maxX = (wxCoord) LogicalToDeviceX(m_maxX);
1680 wxCoord maxY = (wxCoord) LogicalToDeviceY(m_maxY);
1681
1682 // LOG2DEV may have changed the minimum to maximum vice versa
1683 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1684 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1685
1686 // account for used scaling (boundingbox is before scaling in ps-file)
1687 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1688 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1689
1690 wxCoord llx, lly, urx, ury;
1691 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1692 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1693 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1694 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1695 // (end of bounding box computation)
1696
1697
1698 // If we're landscape, our sense of "x" and "y" is reversed.
1699 if (m_printData.GetOrientation() == wxLANDSCAPE)
1700 {
1701 wxCoord tmp;
1702 tmp = llx; llx = lly; lly = tmp;
1703 tmp = urx; urx = ury; ury = tmp;
1704
1705 // We need either the two lines that follow, or we need to subtract
1706 // min_x from real_translate_y, which is commented out below.
1707 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1708 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1709 }
1710
1711 // The Adobe specifications call for integers; we round as to make
1712 // the bounding larger.
1713 PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1714 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1715 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1716
1717 // To check the correctness of the bounding box, postscript commands
1718 // to draw a box corresponding to the bounding box are generated below.
1719 // But since we typically don't want to print such a box, the postscript
1720 // commands are generated within comments. These lines appear before any
1721 // adjustment of scale, rotation, or translation, and hence are in the
1722 // default user coordinates.
1723 PsPrint( "% newpath\n" );
1724 PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1725 PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1726 PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1727 PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1728 #endif
1729
1730 #ifndef __WXMSW__
1731 wxPostScriptPrintNativeData *data =
1732 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1733
1734 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1735 {
1736 wxString command;
1737 command += data->GetPrinterCommand();
1738 command += wxT(" ");
1739 command += data->GetPrinterOptions();
1740 command += wxT(" ");
1741 command += m_printData.GetFilename();
1742
1743 wxExecute( command, true );
1744 wxRemoveFile( m_printData.GetFilename() );
1745 }
1746 #endif
1747 }
1748
1749 void wxPostScriptDC::StartPage()
1750 {
1751 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1752
1753 PsPrintf( wxT("%%%%Page: %d\n"), wxPageNumber++ );
1754
1755 // What is this one supposed to do? RR.
1756 // *m_pstream << "matrix currentmatrix\n";
1757
1758 // Added by Chris Breeze
1759
1760 // Each page starts with an "initgraphics" which resets the
1761 // transformation and so we need to reset the origin
1762 // (and rotate the page for landscape printing)
1763
1764 // Output scaling
1765 wxCoord translate_x, translate_y;
1766 double scale_x, scale_y;
1767
1768 wxPostScriptPrintNativeData *data =
1769 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1770
1771 translate_x = (wxCoord)data->GetPrinterTranslateX();
1772 translate_y = (wxCoord)data->GetPrinterTranslateY();
1773
1774 scale_x = data->GetPrinterScaleX();
1775 scale_y = data->GetPrinterScaleY();
1776
1777 if (m_printData.GetOrientation() == wxLANDSCAPE)
1778 {
1779 int h;
1780 GetSize( (int*) NULL, &h );
1781 translate_y -= h;
1782 PsPrint( "90 rotate\n" );
1783 // I copied this one from a PostScript tutorial, but to no avail. RR.
1784 // PsPrint( "90 rotate llx neg ury nef translate\n" );
1785 }
1786
1787 char buffer[100];
1788 sprintf( buffer, "%.8f %.8f scale\n", scale_x / ms_PSScaleFactor,
1789 scale_y / ms_PSScaleFactor);
1790 for (int i = 0; i < 100; i++)
1791 if (buffer[i] == ',') buffer[i] = '.';
1792 PsPrint( buffer );
1793
1794 PsPrintf( wxT("%d %d translate\n"), translate_x, translate_y );
1795 }
1796
1797 void wxPostScriptDC::EndPage ()
1798 {
1799 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1800
1801 PsPrint( "showpage\n" );
1802 }
1803
1804 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
1805 wxCoord fwidth, wxCoord fheight,
1806 wxDC *source,
1807 wxCoord xsrc, wxCoord ysrc,
1808 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1809 {
1810 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1811
1812 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1813
1814 /* blit into a bitmap */
1815 wxBitmap bitmap( (int)fwidth, (int)fheight );
1816 wxMemoryDC memDC;
1817 memDC.SelectObject(bitmap);
1818 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1819 memDC.SelectObject(wxNullBitmap);
1820
1821 /* draw bitmap. scaling and positioning is done there */
1822 DrawBitmap( bitmap, xdest, ydest );
1823
1824 return true;
1825 }
1826
1827 wxCoord wxPostScriptDC::GetCharHeight() const
1828 {
1829 if (m_font.Ok())
1830 return m_font.GetPointSize();
1831 else
1832 return 12;
1833 }
1834
1835 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
1836 wxCoord *x, wxCoord *y,
1837 wxCoord *descent, wxCoord *externalLeading,
1838 wxFont *theFont ) const
1839 {
1840 wxFont *fontToUse = theFont;
1841
1842 if (!fontToUse) fontToUse = (wxFont*) &m_font;
1843
1844 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
1845
1846 if (string.empty())
1847 {
1848 if (x) (*x) = 0;
1849 if (y) (*y) = 0;
1850 if (descent) (*descent) = 0;
1851 if (externalLeading) (*externalLeading) = 0;
1852 return;
1853 }
1854
1855 // GTK 2.0
1856
1857 const wxWX2MBbuf strbuf = string.mb_str();
1858
1859 #if !wxUSE_AFM_FOR_POSTSCRIPT
1860 /* Provide a VERY rough estimate (avoid using it).
1861 * Produces accurate results for mono-spaced font
1862 * such as Courier (aka wxMODERN) */
1863
1864 int height = 12;
1865 if (fontToUse)
1866 {
1867 height = fontToUse->GetPointSize();
1868 }
1869 if ( x )
1870 *x = strlen (strbuf) * height * 72 / 120;
1871 if ( y )
1872 *y = (wxCoord) (height * 1.32); /* allow for descender */
1873 if (descent) *descent = 0;
1874 if (externalLeading) *externalLeading = 0;
1875 #else
1876
1877 /* method for calculating string widths in postscript:
1878 / read in the AFM (adobe font metrics) file for the
1879 / actual font, parse it and extract the character widths
1880 / and also the descender. this may be improved, but for now
1881 / it works well. the AFM file is only read in if the
1882 / font is changed. this may be chached in the future.
1883 / calls to GetTextExtent with the font unchanged are rather
1884 / efficient!!!
1885 /
1886 / for each font and style used there is an AFM file necessary.
1887 / currently i have only files for the roman font family.
1888 / I try to get files for the other ones!
1889 /
1890 / CAVE: the size of the string is currently always calculated
1891 / in 'points' (1/72 of an inch). this should later on be
1892 / changed to depend on the mapping mode.
1893 / CAVE: the path to the AFM files must be set before calling this
1894 / function. this is usually done by a call like the following:
1895 / wxSetAFMPath("d:\\wxw161\\afm\\");
1896 /
1897 / example:
1898 /
1899 / wxPostScriptDC dc(NULL, true);
1900 / if (dc.Ok()){
1901 / wxSetAFMPath("d:\\wxw161\\afm\\");
1902 / dc.StartDoc("Test");
1903 / dc.StartPage();
1904 / wxCoord w,h;
1905 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
1906 / dc.GetTextExtent("Hallo",&w,&h);
1907 / dc.EndPage();
1908 / dc.EndDoc();
1909 / }
1910 /
1911 / by steve (stefan.hammes@urz.uni-heidelberg.de)
1912 / created: 10.09.94
1913 / updated: 14.05.95 */
1914
1915 /* these static vars are for storing the state between calls */
1916 static int lastFamily= INT_MIN;
1917 static int lastSize= INT_MIN;
1918 static int lastStyle= INT_MIN;
1919 static int lastWeight= INT_MIN;
1920 static int lastDescender = INT_MIN;
1921 static int lastWidths[256]; /* widths of the characters */
1922
1923 double UnderlinePosition = 0.0;
1924 double UnderlineThickness = 0.0;
1925
1926 // Get actual parameters
1927 int Family = fontToUse->GetFamily();
1928 int Size = fontToUse->GetPointSize();
1929 int Style = fontToUse->GetStyle();
1930 int Weight = fontToUse->GetWeight();
1931
1932 // If we have another font, read the font-metrics
1933 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
1934 {
1935 // Store actual values
1936 lastFamily = Family;
1937 lastSize = Size;
1938 lastStyle = Style;
1939 lastWeight = Weight;
1940
1941 const wxChar *name;
1942
1943 switch (Family)
1944 {
1945 case wxMODERN:
1946 case wxTELETYPE:
1947 {
1948 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
1949 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
1950 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
1951 else name = wxT("Cour.afm");
1952 break;
1953 }
1954 case wxROMAN:
1955 {
1956 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
1957 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
1958 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
1959 else name = wxT("TimesRo.afm");
1960 break;
1961 }
1962 case wxSCRIPT:
1963 {
1964 name = wxT("Zapf.afm");
1965 break;
1966 }
1967 case wxSWISS:
1968 default:
1969 {
1970 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
1971 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
1972 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
1973 else name = wxT("Helv.afm");
1974 break;
1975 }
1976 }
1977
1978 FILE *afmFile = NULL;
1979
1980 // Get the directory of the AFM files
1981 wxString afmName;
1982
1983 // VZ: I don't know if the cast always works under Unix but it clearly
1984 // never does under Windows where the pointer is
1985 // wxWindowsPrintNativeData and so calling GetFontMetricPath() on
1986 // it just crashes
1987 #ifndef __WIN32__
1988 wxPostScriptPrintNativeData *data =
1989 wxDynamicCast(m_printData.GetNativeData(), wxPostScriptPrintNativeData);
1990
1991 if (data && !data->GetFontMetricPath().empty())
1992 {
1993 afmName = data->GetFontMetricPath();
1994 afmName << wxFILE_SEP_PATH << name;
1995 }
1996 #endif // __WIN32__
1997
1998 if ( !afmName.empty() )
1999 afmFile = wxFopen(afmName, wxT("r"));
2000
2001 if ( !afmFile )
2002 {
2003 #if defined(__UNIX__) && !defined(__VMS__)
2004 afmName = wxGetDataDir();
2005 #else // !__UNIX__
2006 afmName = wxStandardPaths::Get().GetDataDir();
2007 #endif // __UNIX__/!__UNIX__
2008
2009 afmName << wxFILE_SEP_PATH
2010 #if defined(__LINUX__) || defined(__FREEBSD__)
2011 << wxT("gs_afm") << wxFILE_SEP_PATH
2012 #else
2013 << wxT("afm") << wxFILE_SEP_PATH
2014 #endif
2015 << name;
2016 afmFile = wxFopen(afmName,wxT("r"));
2017 }
2018
2019 /* 2. open and process the file
2020 / a short explanation of the AFM format:
2021 / we have for each character a line, which gives its size
2022 / e.g.:
2023 /
2024 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2025 /
2026 / that means, we have a character with ascii code 63, and width
2027 / (444/1000 * fontSize) points.
2028 / the other data is ignored for now!
2029 /
2030 / when the font has changed, we read in the right AFM file and store the
2031 / character widths in an array, which is processed below (see point 3.). */
2032 if (afmFile==NULL)
2033 {
2034 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2035 wxLogDebug( wxT(" using approximate values"));
2036 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2037 lastDescender = -150; /* dito. */
2038 }
2039 else
2040 {
2041 /* init the widths array */
2042 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2043 /* some variables for holding parts of a line */
2044 char cString[10], semiString[10], WXString[10];
2045 char descString[20];
2046 char upString[30], utString[30];
2047 char encString[50];
2048 char line[256];
2049 int ascii,cWidth;
2050 /* read in the file and parse it */
2051 while(fgets(line,sizeof(line),afmFile)!=NULL)
2052 {
2053 /* A.) check for descender definition */
2054 if (strncmp(line,"Descender",9)==0)
2055 {
2056 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2057 (strcmp(descString,"Descender")!=0))
2058 {
2059 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2060 }
2061 }
2062 /* JC 1.) check for UnderlinePosition */
2063 else if(strncmp(line,"UnderlinePosition",17)==0)
2064 {
2065 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2066 (strcmp(upString,"UnderlinePosition")!=0))
2067 {
2068 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2069 }
2070 }
2071 /* JC 2.) check for UnderlineThickness */
2072 else if(strncmp(line,"UnderlineThickness",18)==0)
2073 {
2074 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2075 (strcmp(utString,"UnderlineThickness")!=0))
2076 {
2077 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2078 }
2079 }
2080 /* JC 3.) check for EncodingScheme */
2081 else if(strncmp(line,"EncodingScheme",14)==0)
2082 {
2083 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2084 (strcmp(utString,"EncodingScheme")!=0))
2085 {
2086 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2087 }
2088 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2089 {
2090 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2091 afmName.c_str(),line, encString);
2092 }
2093 }
2094 /* B.) check for char-width */
2095 else if(strncmp(line,"C ",2)==0)
2096 {
2097 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2098 {
2099 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2100 }
2101 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2102 {
2103 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2104 }
2105 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2106 if (ascii>=0 && ascii<256)
2107 {
2108 lastWidths[ascii] = cWidth; /* store width */
2109 }
2110 else
2111 {
2112 /* MATTHEW: this happens a lot; don't print an error */
2113 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2114 }
2115 }
2116 /* C.) ignore other entries. */
2117 }
2118 fclose(afmFile);
2119 }
2120 /* hack to compute correct values for german 'Umlaute'
2121 / the correct way would be to map the character names
2122 / like 'adieresis' to corresp. positions of ISOEnc and read
2123 / these values from AFM files, too. Maybe later ... */
2124
2125 // NB: casts to int are needed to suppress gcc 3.3 warnings
2126 lastWidths[196] = lastWidths[(int)'A']; // Ä
2127 lastWidths[228] = lastWidths[(int)'a']; // ä
2128 lastWidths[214] = lastWidths[(int)'O']; // Ö
2129 lastWidths[246] = lastWidths[(int)'o']; // ö
2130 lastWidths[220] = lastWidths[(int)'U']; // Ü
2131 lastWidths[252] = lastWidths[(int)'u']; // ü
2132 lastWidths[223] = lastWidths[(int)251]; // ß
2133
2134 /* JC: calculate UnderlineThickness/UnderlinePosition */
2135
2136 // VS: dirty, but is there any better solution?
2137 double *pt;
2138 pt = (double*) &m_underlinePosition;
2139 *pt = LogicalToDeviceYRel((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2140 pt = (double*) &m_underlineThickness;
2141 *pt = LogicalToDeviceYRel((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2142
2143 }
2144
2145
2146 /* 3. now the font metrics are read in, calc size this
2147 / is done by adding the widths of the characters in the
2148 / string. they are given in 1/1000 of the size! */
2149
2150 long sum=0;
2151 wxCoord height=Size; /* by default */
2152 unsigned char *p;
2153 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2154 {
2155 if(lastWidths[*p]== INT_MIN)
2156 {
2157 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2158 sum += lastWidths[(unsigned char)' ']; /* assume space */
2159 }
2160 else
2161 {
2162 sum += lastWidths[*p];
2163 }
2164 }
2165
2166 double widthSum = sum;
2167 widthSum *= Size;
2168 widthSum /= 1000.0F;
2169
2170 /* add descender to height (it is usually a negative value) */
2171 //if (lastDescender != INT_MIN)
2172 //{
2173 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2174 //}
2175 // - commented by V. Slavik - height already contains descender in it
2176 // (judging from few experiments)
2177
2178 /* return size values */
2179 if ( x )
2180 *x = (wxCoord)widthSum;
2181 if ( y )
2182 *y = height;
2183
2184 /* return other parameters */
2185 if (descent)
2186 {
2187 if(lastDescender!=INT_MIN)
2188 {
2189 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2190 }
2191 else
2192 {
2193 *descent = 0;
2194 }
2195 }
2196
2197 /* currently no idea how to calculate this! */
2198 if (externalLeading) *externalLeading = 0;
2199 #endif
2200 // Use AFM
2201 }
2202
2203 // print postscript datas via required method (file, stream)
2204 void wxPostScriptDC::PsPrintf( const wxChar* fmt, ... )
2205 {
2206 va_list argptr;
2207 va_start(argptr, fmt);
2208
2209 PsPrint( wxString::FormatV( fmt, argptr ).c_str() );
2210 }
2211
2212 void wxPostScriptDC::PsPrint( const char* psdata )
2213 {
2214 wxPostScriptPrintNativeData *data =
2215 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2216
2217 switch (m_printData.GetPrintMode())
2218 {
2219 #if wxUSE_STREAMS
2220 // append to output stream
2221 case wxPRINT_MODE_STREAM:
2222 {
2223 wxOutputStream* outputstream = data->GetOutputStream();
2224 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2225 outputstream->Write( psdata, strlen( psdata ) );
2226 }
2227 break;
2228 #endif // wxUSE_STREAMS
2229
2230 // save data into file
2231 default:
2232 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2233 fwrite( psdata, 1, strlen( psdata ), m_pstream );
2234 }
2235 }
2236
2237 void wxPostScriptDC::PsPrint( int ch )
2238 {
2239 wxPostScriptPrintNativeData *data =
2240 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2241
2242 switch (m_printData.GetPrintMode())
2243 {
2244 #if wxUSE_STREAMS
2245 // append to output stream
2246 case wxPRINT_MODE_STREAM:
2247 {
2248 wxOutputStream* outputstream = data->GetOutputStream();
2249 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2250 outputstream->PutC( (char)ch );
2251 }
2252 break;
2253 #endif // wxUSE_STREAMS
2254
2255 // save data into file
2256 default:
2257 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2258 fputc( ch, m_pstream );
2259 }
2260 }
2261
2262 #endif // wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT
2263
2264 // vi:sts=4:sw=4:et
wxWidgets (Impactor)