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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/utils.h"
26 #include "wx/dcmemory.h"
27 #include "wx/math.h"
28 #include "wx/image.h"
29 #include "wx/icon.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
276 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
277 {
278 m_pstream = (FILE*) NULL;
279
280 m_currentRed = 0;
281 m_currentGreen = 0;
282 m_currentBlue = 0;
283
284 m_pageNumber = 0;
285
286 m_clipping = false;
287
288 m_underlinePosition = 0.0;
289 m_underlineThickness = 0.0;
290
291 m_signX = 1; // default x-axis left to right
292 m_signY = -1; // default y-axis bottom up -> top down
293
294 m_printData = printData;
295
296 int h = 0;
297 GetSize( NULL, &h );
298 SetDeviceLocalOrigin( 0, h );
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::IsOk() 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 ( wxIsNullDouble(radius) )
413 {
414 alpha1 =
415 alpha2 = 0.0;
416 }
417 else
418 {
419 alpha1 = (x1 - xc == 0) ?
420 (y1 - yc < 0) ? 90.0 : -90.0 :
421 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
422 alpha2 = (x2 - xc == 0) ?
423 (y2 - yc < 0) ? 90.0 : -90.0 :
424 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
425 }
426 while (alpha1 <= 0) alpha1 += 360;
427 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
428 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
429 while (alpha2 > 360) alpha2 -= 360;
430
431 if (m_brush.GetStyle() != wxTRANSPARENT)
432 {
433 SetBrush( m_brush );
434
435 PsPrintf( wxT("newpath\n")
436 wxT("%d %d %d %d %d %d ellipse\n")
437 wxT("%d %d lineto\n")
438 wxT("closepath\n")
439 wxT("fill\n"),
440 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
441 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
442
443 CalcBoundingBox( xc-radius, yc-radius );
444 CalcBoundingBox( xc+radius, yc+radius );
445 }
446
447 if (m_pen.GetStyle() != wxTRANSPARENT)
448 {
449 SetPen( m_pen );
450
451 PsPrintf( wxT("newpath\n")
452 wxT("%d %d %d %d %d %d ellipse\n")
453 wxT("%d %d lineto\n")
454 wxT("stroke\n")
455 wxT("fill\n"),
456 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
457 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
458
459 CalcBoundingBox( xc-radius, yc-radius );
460 CalcBoundingBox( xc+radius, yc+radius );
461 }
462 }
463
464 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
465 {
466 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
467
468 if ( sa >= 360 || sa <= -360 )
469 sa -= int(sa/360)*360;
470 if ( ea >= 360 || ea <=- 360 )
471 ea -= int(ea/360)*360;
472 if ( sa < 0 )
473 sa += 360;
474 if ( ea < 0 )
475 ea += 360;
476
477 if ( wxIsSameDouble(sa, ea) )
478 {
479 DrawEllipse(x,y,w,h);
480 return;
481 }
482
483 if (m_brush.GetStyle () != wxTRANSPARENT)
484 {
485 SetBrush( m_brush );
486
487 PsPrintf( wxT("newpath\n")
488 wxT("%d %d %d %d %d %d true ellipticarc\n"),
489 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
490 LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
491 (wxCoord)sa, (wxCoord)ea );
492
493 CalcBoundingBox( x ,y );
494 CalcBoundingBox( x+w, y+h );
495 }
496
497 if (m_pen.GetStyle () != wxTRANSPARENT)
498 {
499 SetPen( m_pen );
500
501 PsPrintf( wxT("newpath\n")
502 wxT("%d %d %d %d %d %d false ellipticarc\n"),
503 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
504 LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
505 (wxCoord)sa, (wxCoord)ea );
506
507 CalcBoundingBox( x ,y );
508 CalcBoundingBox( x+w, y+h );
509 }
510 }
511
512 void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
513 {
514 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
515
516 if (m_pen.GetStyle() == wxTRANSPARENT) return;
517
518 SetPen (m_pen);
519
520 PsPrintf( wxT("newpath\n")
521 wxT("%d %d moveto\n")
522 wxT("%d %d lineto\n")
523 wxT("stroke\n"),
524 LogicalToDeviceX(x), LogicalToDeviceY(y),
525 LogicalToDeviceX(x+1), LogicalToDeviceY(y) );
526
527 CalcBoundingBox( x, y );
528 }
529
530 void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
531 {
532 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
533
534 if (n <= 0) return;
535
536 if (m_brush.GetStyle () != wxTRANSPARENT)
537 {
538 SetBrush( m_brush );
539
540 PsPrint( "newpath\n" );
541
542 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
543 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
544
545 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
546
547 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
548
549 for (int i = 1; i < n; i++)
550 {
551 xx = LogicalToDeviceX(points[i].x + xoffset);
552 yy = LogicalToDeviceY(points[i].y + yoffset);
553
554 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
555
556 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
557 }
558
559 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
560 }
561
562 if (m_pen.GetStyle () != wxTRANSPARENT)
563 {
564 SetPen( m_pen );
565
566 PsPrint( "newpath\n" );
567
568 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
569 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
570
571 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
572
573 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
574
575 for (int i = 1; i < n; i++)
576 {
577 xx = LogicalToDeviceX(points[i].x + xoffset);
578 yy = LogicalToDeviceY(points[i].y + yoffset);
579
580 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
581
582 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
583 }
584
585 PsPrint( "closepath\n" );
586 PsPrint( "stroke\n" );
587 }
588 }
589
590 void wxPostScriptDC::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
591 {
592 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
593
594 if (n <= 0) return;
595
596 if (m_brush.GetStyle () != wxTRANSPARENT)
597 {
598 SetBrush( m_brush );
599
600 PsPrint( "newpath\n" );
601
602 int ofs = 0;
603 for (int i = 0; i < n; ofs += count[i++])
604 {
605 wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
606 wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
607
608 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
609
610 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
611
612 for (int j = 1; j < count[i]; j++)
613 {
614 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
615 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
616
617 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
618
619 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
620 }
621 }
622 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
623 }
624
625 if (m_pen.GetStyle () != wxTRANSPARENT)
626 {
627 SetPen( m_pen );
628
629 PsPrint( "newpath\n" );
630
631 int ofs = 0;
632 for (int i = 0; i < n; ofs += count[i++])
633 {
634 wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
635 wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
636
637 PsPrintf( wxT("%d %d moveto\n"), xx, yy );
638
639 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
640
641 for (int j = 1; j < count[i]; j++)
642 {
643 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
644 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
645
646 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
647
648 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
649 }
650 }
651 PsPrint( "closepath\n" );
652 PsPrint( "stroke\n" );
653 }
654 }
655
656 void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
657 {
658 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
659
660 if (m_pen.GetStyle() == wxTRANSPARENT) return;
661
662 if (n <= 0) return;
663
664 SetPen (m_pen);
665
666 int i;
667 for ( i =0; i<n ; i++ )
668 {
669 CalcBoundingBox( LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset));
670 }
671
672 PsPrintf( wxT("newpath\n")
673 wxT("%d %d moveto\n"),
674 LogicalToDeviceX(points[0].x+xoffset),
675 LogicalToDeviceY(points[0].y+yoffset) );
676
677 for (i = 1; i < n; i++)
678 {
679 PsPrintf( wxT("%d %d lineto\n"),
680 LogicalToDeviceX(points[i].x+xoffset),
681 LogicalToDeviceY(points[i].y+yoffset) );
682 }
683
684 PsPrint( "stroke\n" );
685 }
686
687 void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
688 {
689 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
690
691 if (m_brush.GetStyle () != wxTRANSPARENT)
692 {
693 SetBrush( m_brush );
694
695 PsPrintf( wxT("newpath\n")
696 wxT("%d %d moveto\n")
697 wxT("%d %d lineto\n")
698 wxT("%d %d lineto\n")
699 wxT("%d %d lineto\n")
700 wxT("closepath\n")
701 wxT("fill\n"),
702 LogicalToDeviceX(x), LogicalToDeviceY(y),
703 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
704 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
705 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
706
707 CalcBoundingBox( x, y );
708 CalcBoundingBox( x + width, y + height );
709 }
710
711 if (m_pen.GetStyle () != wxTRANSPARENT)
712 {
713 SetPen (m_pen);
714
715 PsPrintf( wxT("newpath\n")
716 wxT("%d %d moveto\n")
717 wxT("%d %d lineto\n")
718 wxT("%d %d lineto\n")
719 wxT("%d %d lineto\n")
720 wxT("closepath\n")
721 wxT("stroke\n"),
722 LogicalToDeviceX(x), LogicalToDeviceY(y),
723 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
724 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
725 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
726
727 CalcBoundingBox( x, y );
728 CalcBoundingBox( x + width, y + height );
729 }
730 }
731
732 void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
733 {
734 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
735
736 if (radius < 0.0)
737 {
738 // Now, a negative radius is interpreted to mean
739 // 'the proportion of the smallest X or Y dimension'
740 double smallest = width < height ? width : height;
741 radius = (-radius * smallest);
742 }
743
744 wxCoord rad = (wxCoord) radius;
745
746 if (m_brush.GetStyle () != wxTRANSPARENT)
747 {
748 SetBrush( m_brush );
749
750 /* Draw rectangle anticlockwise */
751 PsPrintf( wxT("newpath\n")
752 wxT("%d %d %d 90 180 arc\n")
753 wxT("%d %d lineto\n")
754 wxT("%d %d %d 180 270 arc\n")
755 wxT("%d %d lineto\n")
756 wxT("%d %d %d 270 0 arc\n")
757 wxT("%d %d lineto\n")
758 wxT("%d %d %d 0 90 arc\n")
759 wxT("%d %d lineto\n")
760 wxT("closepath\n")
761 wxT("fill\n"),
762 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
763 LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
764 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
765 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
766 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
767 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
768 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
769 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
770
771 CalcBoundingBox( x, y );
772 CalcBoundingBox( x + width, y + height );
773 }
774
775 if (m_pen.GetStyle () != wxTRANSPARENT)
776 {
777 SetPen (m_pen);
778
779 /* Draw rectangle anticlockwise */
780 PsPrintf( wxT("newpath\n")
781 wxT("%d %d %d 90 180 arc\n")
782 wxT("%d %d lineto\n")
783 wxT("%d %d %d 180 270 arc\n")
784 wxT("%d %d lineto\n")
785 wxT("%d %d %d 270 0 arc\n")
786 wxT("%d %d lineto\n")
787 wxT("%d %d %d 0 90 arc\n")
788 wxT("%d %d lineto\n")
789 wxT("closepath\n")
790 wxT("stroke\n"),
791 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
792 LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
793 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
794 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
795 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
796 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
797 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
798 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
799
800 CalcBoundingBox( x, y );
801 CalcBoundingBox( x + width, y + height );
802 }
803 }
804
805 void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
806 {
807 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
808
809 if (m_brush.GetStyle () != wxTRANSPARENT)
810 {
811 SetBrush (m_brush);
812
813 PsPrintf( wxT("newpath\n")
814 wxT("%d %d %d %d 0 360 ellipse\n")
815 wxT("fill\n"),
816 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
817 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
818
819 CalcBoundingBox( x - width, y - height );
820 CalcBoundingBox( x + width, y + height );
821 }
822
823 if (m_pen.GetStyle () != wxTRANSPARENT)
824 {
825 SetPen (m_pen);
826
827 PsPrintf( wxT("newpath\n")
828 wxT("%d %d %d %d 0 360 ellipse\n")
829 wxT("stroke\n"),
830 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
831 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
832
833 CalcBoundingBox( x - width, y - height );
834 CalcBoundingBox( x + width, y + height );
835 }
836 }
837
838 void wxPostScriptDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
839 {
840 DrawBitmap( icon, x, y, true );
841 }
842
843 /* this has to be char, not wxChar */
844 static char hexArray[] = "0123456789ABCDEF";
845
846 void wxPostScriptDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
847 {
848 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
849
850 if (!bitmap.Ok()) return;
851
852 wxImage image = bitmap.ConvertToImage();
853
854 if (!image.Ok()) return;
855
856 wxCoord w = image.GetWidth();
857 wxCoord h = image.GetHeight();
858
859 wxCoord ww = LogicalToDeviceXRel(image.GetWidth());
860 wxCoord hh = LogicalToDeviceYRel(image.GetHeight());
861
862 wxCoord xx = LogicalToDeviceX(x);
863 wxCoord yy = LogicalToDeviceY(y + bitmap.GetHeight());
864
865 PsPrintf( wxT("/origstate save def\n")
866 wxT("20 dict begin\n")
867 wxT("/pix %d string def\n")
868 wxT("/grays %d string def\n")
869 wxT("/npixels 0 def\n")
870 wxT("/rgbindx 0 def\n")
871 wxT("%d %d translate\n")
872 wxT("%d %d scale\n")
873 wxT("%d %d 8\n")
874 wxT("[%d 0 0 %d 0 %d]\n")
875 wxT("{currentfile pix readhexstring pop}\n")
876 wxT("false 3 colorimage\n"),
877 w, w, xx, yy, ww, hh, w, h, w, -h, h );
878
879 unsigned char* data = image.GetData();
880
881 // size of the buffer = width*rgb(3)*hexa(2)+'\n'
882 wxCharBuffer buffer(w*6 + 1);
883 int firstDigit, secondDigit;
884
885 //rows
886 for (int j = 0; j < h; j++)
887 {
888 char* bufferindex = buffer.data();
889
890 //cols
891 for (int i = 0; i < w*3; i++)
892 {
893 firstDigit = (int)(*data/16.0);
894 secondDigit = (int)(*data - (firstDigit*16.0));
895 *(bufferindex++) = hexArray[firstDigit];
896 *(bufferindex++) = hexArray[secondDigit];
897
898 data++;
899 }
900 *(bufferindex++) = '\n';
901 *bufferindex = 0;
902 PsPrint( buffer );
903 }
904
905 PsPrint( "end\n" );
906 PsPrint( "origstate restore\n" );
907 }
908
909 void wxPostScriptDC::SetFont( const wxFont& font )
910 {
911 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
912
913 if (!font.Ok()) return;
914
915 m_font = font;
916
917 int Style = m_font.GetStyle();
918 int Weight = m_font.GetWeight();
919
920 const char *name;
921 switch (m_font.GetFamily())
922 {
923 case wxTELETYPE:
924 case wxMODERN:
925 {
926 if (Style == wxITALIC)
927 {
928 if (Weight == wxBOLD)
929 name = "/Courier-BoldOblique";
930 else
931 name = "/Courier-Oblique";
932 }
933 else
934 {
935 if (Weight == wxBOLD)
936 name = "/Courier-Bold";
937 else
938 name = "/Courier";
939 }
940 break;
941 }
942 case wxROMAN:
943 {
944 if (Style == wxITALIC)
945 {
946 if (Weight == wxBOLD)
947 name = "/Times-BoldItalic";
948 else
949 name = "/Times-Italic";
950 }
951 else
952 {
953 if (Weight == wxBOLD)
954 name = "/Times-Bold";
955 else
956 name = "/Times-Roman";
957 }
958 break;
959 }
960 case wxSCRIPT:
961 {
962 name = "/ZapfChancery-MediumItalic";
963 break;
964 }
965 case wxSWISS:
966 default:
967 {
968 if (Style == wxITALIC)
969 {
970 if (Weight == wxBOLD)
971 name = "/Helvetica-BoldOblique";
972 else
973 name = "/Helvetica-Oblique";
974 }
975 else
976 {
977 if (Weight == wxBOLD)
978 name = "/Helvetica-Bold";
979 else
980 name = "/Helvetica";
981 }
982 break;
983 }
984 }
985
986 // We may legitimately call SetFont before BeginDoc
987 if (!m_pstream)
988 return;
989
990 PsPrint( name );
991 PsPrint( " reencodeISO def\n" );
992 PsPrint( name );
993 PsPrint( " findfont\n" );
994
995 char buffer[100];
996 sprintf( buffer, "%f scalefont setfont\n", LogicalToDeviceYRel(m_font.GetPointSize() * 1000) / 1000.0F);
997 // this is a hack - we must scale font size (in pts) according to m_scaleY but
998 // LogicalToDeviceYRel works with wxCoord type (int or longint). Se we first convert font size
999 // to 1/1000th of pt and then back.
1000 for (int i = 0; i < 100; i++)
1001 if (buffer[i] == ',') buffer[i] = '.';
1002 PsPrint( buffer );
1003 }
1004
1005 void wxPostScriptDC::SetPen( const wxPen& pen )
1006 {
1007 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1008
1009 if (!pen.Ok()) return;
1010
1011 int oldStyle = m_pen.GetStyle();
1012
1013 m_pen = pen;
1014
1015 char buffer[100];
1016 sprintf( buffer, "%f setlinewidth\n", LogicalToDeviceXRel(1000 * m_pen.GetWidth()) / 1000.0f );
1017 for (int i = 0; i < 100; i++)
1018 if (buffer[i] == ',') buffer[i] = '.';
1019 PsPrint( buffer );
1020
1021 /*
1022 Line style - WRONG: 2nd arg is OFFSET
1023
1024 Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1025 operator correctly. You should look-up this in the Red Book: the 2nd parame-
1026 ter is not number of values in the array of the first one, but an offset
1027 into this description of the pattern. I mean a real *offset* not index
1028 into array. I.e. If the command is [3 4] 1 setdash is used, then there
1029 will be first black line *2* units wxCoord, then space 4 units, then the
1030 pattern of *3* units black, 4 units space will be repeated.
1031 */
1032
1033 static const char *dotted = "[2 5] 2";
1034 static const char *short_dashed = "[4 4] 2";
1035 static const char *wxCoord_dashed = "[4 8] 2";
1036 static const char *dotted_dashed = "[6 6 2 6] 4";
1037
1038 const char *psdash;
1039
1040 switch (m_pen.GetStyle())
1041 {
1042 case wxDOT: psdash = dotted; break;
1043 case wxSHORT_DASH: psdash = short_dashed; break;
1044 case wxLONG_DASH: psdash = wxCoord_dashed; break;
1045 case wxDOT_DASH: psdash = dotted_dashed; break;
1046 case wxUSER_DASH:
1047 {
1048 wxDash *dashes;
1049 int nDashes = m_pen.GetDashes (&dashes);
1050 PsPrint ("[");
1051 for (int i = 0; i < nDashes; ++i)
1052 {
1053 sprintf( buffer, "%d ", dashes [i] );
1054 PsPrint( buffer );
1055 }
1056 PsPrint ("] 0 setdash\n");
1057 psdash = 0;
1058 }
1059 break;
1060 case wxSOLID:
1061 case wxTRANSPARENT:
1062 default: psdash = "[] 0"; break;
1063 }
1064
1065 if ( psdash && (oldStyle != m_pen.GetStyle()) )
1066 {
1067 PsPrint( psdash );
1068 PsPrint( " setdash\n" );
1069 }
1070
1071 // Line colour
1072 unsigned char red = m_pen.GetColour().Red();
1073 unsigned char blue = m_pen.GetColour().Blue();
1074 unsigned char green = m_pen.GetColour().Green();
1075
1076 if (!m_colour)
1077 {
1078 // Anything not white is black
1079 if (! (red == (unsigned char) 255 &&
1080 blue == (unsigned char) 255 &&
1081 green == (unsigned char) 255) )
1082 {
1083 red = (unsigned char) 0;
1084 green = (unsigned char) 0;
1085 blue = (unsigned char) 0;
1086 }
1087 // setgray here ?
1088 }
1089
1090 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1091 {
1092 double redPS = (double)(red) / 255.0;
1093 double bluePS = (double)(blue) / 255.0;
1094 double greenPS = (double)(green) / 255.0;
1095
1096 sprintf( buffer,
1097 "%.8f %.8f %.8f setrgbcolor\n",
1098 redPS, greenPS, bluePS );
1099 for (int i = 0; i < 100; i++)
1100 if (buffer[i] == ',') buffer[i] = '.';
1101
1102 PsPrint( buffer );
1103
1104 m_currentRed = red;
1105 m_currentBlue = blue;
1106 m_currentGreen = green;
1107 }
1108 }
1109
1110 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1111 {
1112 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1113
1114 if (!brush.Ok()) return;
1115
1116 m_brush = brush;
1117
1118 // Brush colour
1119 unsigned char red = m_brush.GetColour().Red();
1120 unsigned char blue = m_brush.GetColour().Blue();
1121 unsigned char green = m_brush.GetColour().Green();
1122
1123 if (!m_colour)
1124 {
1125 // Anything not white is black
1126 if (! (red == (unsigned char) 255 &&
1127 blue == (unsigned char) 255 &&
1128 green == (unsigned char) 255) )
1129 {
1130 red = (unsigned char) 0;
1131 green = (unsigned char) 0;
1132 blue = (unsigned char) 0;
1133 }
1134 // setgray here ?
1135 }
1136
1137 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1138 {
1139 double redPS = (double)(red) / 255.0;
1140 double bluePS = (double)(blue) / 255.0;
1141 double greenPS = (double)(green) / 255.0;
1142
1143 char buffer[100];
1144 sprintf( buffer,
1145 "%.8f %.8f %.8f setrgbcolor\n",
1146 redPS, greenPS, bluePS );
1147 for (int i = 0; i < 100; i++)
1148 if (buffer[i] == ',') buffer[i] = '.';
1149
1150 PsPrint( buffer );
1151
1152 m_currentRed = red;
1153 m_currentBlue = blue;
1154 m_currentGreen = green;
1155 }
1156 }
1157
1158 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1159 {
1160 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1161
1162 if (m_textForegroundColour.Ok())
1163 {
1164 unsigned char red = m_textForegroundColour.Red();
1165 unsigned char blue = m_textForegroundColour.Blue();
1166 unsigned char green = m_textForegroundColour.Green();
1167
1168 if (!m_colour)
1169 {
1170 // Anything not white is black
1171 if (! (red == (unsigned char) 255 &&
1172 blue == (unsigned char) 255 &&
1173 green == (unsigned char) 255))
1174 {
1175 red = (unsigned char) 0;
1176 green = (unsigned char) 0;
1177 blue = (unsigned char) 0;
1178 }
1179 }
1180
1181 // maybe setgray here ?
1182 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1183 {
1184 double redPS = (double)(red) / 255.0;
1185 double bluePS = (double)(blue) / 255.0;
1186 double greenPS = (double)(green) / 255.0;
1187
1188 char buffer[100];
1189 sprintf( buffer,
1190 "%.8f %.8f %.8f setrgbcolor\n",
1191 redPS, greenPS, bluePS );
1192 for (size_t i = 0; i < strlen(buffer); i++)
1193 if (buffer[i] == ',') buffer[i] = '.';
1194 PsPrint( buffer );
1195
1196 m_currentRed = red;
1197 m_currentBlue = blue;
1198 m_currentGreen = green;
1199 }
1200 }
1201
1202 wxCoord text_w, text_h, text_descent;
1203
1204 GetTextExtent(text, &text_w, &text_h, &text_descent);
1205
1206 // VZ: this seems to be unnecessary, so taking it out for now, if it
1207 // doesn't create any problems, remove this comment entirely
1208 //SetFont( m_font );
1209
1210
1211 int size = m_font.GetPointSize();
1212
1213 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1214 // commented by V. Slavik and replaced by accurate version
1215 // - note that there is still rounding error in text_descent!
1216 wxCoord by = y + size - text_descent; // baseline
1217
1218 PsPrintf( wxT("%d %d moveto\n"), LogicalToDeviceX(x), LogicalToDeviceY(by) );
1219 PsPrint( "(" );
1220
1221 const wxWX2MBbuf textbuf = text.mb_str();
1222 size_t len = strlen(textbuf);
1223 size_t i;
1224 for (i = 0; i < len; i++)
1225 {
1226 int c = (unsigned char) textbuf[i];
1227 if (c == ')' || c == '(' || c == '\\')
1228 {
1229 /* Cope with special characters */
1230 PsPrint( "\\" );
1231 PsPrint(c);
1232 }
1233 else if ( c >= 128 )
1234 {
1235 /* Cope with character codes > 127 */
1236 PsPrintf( wxT("\\%o"), c);
1237 }
1238 else
1239 {
1240 PsPrint(c);
1241 }
1242 }
1243
1244 PsPrint( ") show\n" );
1245
1246 if (m_font.GetUnderlined())
1247 {
1248 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1249 char buffer[100];
1250
1251 sprintf( buffer,
1252 "gsave\n"
1253 "%d %d moveto\n"
1254 "%f setlinewidth\n"
1255 "%d %d lineto\n"
1256 "stroke\n"
1257 "grestore\n",
1258 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1259 m_underlineThickness,
1260 LogicalToDeviceX(x + text_w), LogicalToDeviceY(uy) );
1261 for (i = 0; i < 100; i++)
1262 if (buffer[i] == ',') buffer[i] = '.';
1263 PsPrint( buffer );
1264 }
1265
1266 CalcBoundingBox( x, y );
1267 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1268 }
1269
1270 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1271 {
1272 if ( wxIsNullDouble(angle) )
1273 {
1274 DoDrawText(text, x, y);
1275 return;
1276 }
1277
1278 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1279
1280 SetFont( m_font );
1281
1282 if (m_textForegroundColour.Ok())
1283 {
1284 unsigned char red = m_textForegroundColour.Red();
1285 unsigned char blue = m_textForegroundColour.Blue();
1286 unsigned char green = m_textForegroundColour.Green();
1287
1288 if (!m_colour)
1289 {
1290 // Anything not white is black
1291 if (! (red == (unsigned char) 255 &&
1292 blue == (unsigned char) 255 &&
1293 green == (unsigned char) 255))
1294 {
1295 red = (unsigned char) 0;
1296 green = (unsigned char) 0;
1297 blue = (unsigned char) 0;
1298 }
1299 }
1300
1301 // maybe setgray here ?
1302 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1303 {
1304 double redPS = (double)(red) / 255.0;
1305 double bluePS = (double)(blue) / 255.0;
1306 double greenPS = (double)(green) / 255.0;
1307
1308 char buffer[100];
1309 sprintf( buffer,
1310 "%.8f %.8f %.8f setrgbcolor\n",
1311 redPS, greenPS, bluePS );
1312 for (int i = 0; i < 100; i++)
1313 if (buffer[i] == ',') buffer[i] = '.';
1314 PsPrint( buffer );
1315
1316 m_currentRed = red;
1317 m_currentBlue = blue;
1318 m_currentGreen = green;
1319 }
1320 }
1321
1322 int size = m_font.GetPointSize();
1323
1324 PsPrintf( wxT("%d %d moveto\n"),
1325 LogicalToDeviceX(x), LogicalToDeviceY(y));
1326
1327 char buffer[100];
1328 sprintf(buffer, "%.8f rotate\n", angle);
1329 size_t i;
1330 for (i = 0; i < 100; i++)
1331 {
1332 if (buffer[i] == ',') buffer[i] = '.';
1333 }
1334 PsPrint( buffer);
1335
1336 PsPrint( "(" );
1337 const wxWX2MBbuf textbuf = text.mb_str();
1338 size_t len = strlen(textbuf);
1339 for (i = 0; i < len; i++)
1340 {
1341 int c = (unsigned char) textbuf[i];
1342 if (c == ')' || c == '(' || c == '\\')
1343 {
1344 /* Cope with special characters */
1345 PsPrint( "\\" );
1346 PsPrint(c);
1347 }
1348 else if ( c >= 128 )
1349 {
1350 /* Cope with character codes > 127 */
1351 PsPrintf( wxT("\\%o"), c);
1352 }
1353 else
1354 {
1355 PsPrint(c);
1356 }
1357 }
1358
1359 PsPrint( ") show\n" );
1360
1361 sprintf( buffer, "%.8f rotate\n", -angle );
1362 for (i = 0; i < 100; i++)
1363 {
1364 if (buffer[i] == ',') buffer[i] = '.';
1365 }
1366 PsPrint( buffer );
1367
1368 if (m_font.GetUnderlined())
1369 {
1370 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1371 wxCoord w, h;
1372 GetTextExtent(text, &w, &h);
1373
1374 sprintf( buffer,
1375 "gsave\n"
1376 "%d %d moveto\n"
1377 "%f setlinewidth\n"
1378 "%d %d lineto\n"
1379 "stroke\n"
1380 "grestore\n",
1381 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1382 m_underlineThickness,
1383 LogicalToDeviceX(x + w), LogicalToDeviceY(uy) );
1384 for (i = 0; i < 100; i++)
1385 {
1386 if (buffer[i] == ',') buffer[i] = '.';
1387 }
1388 PsPrint( buffer );
1389 }
1390
1391 CalcBoundingBox( x, y );
1392 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1393 }
1394
1395 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1396 {
1397 m_backgroundBrush = brush;
1398 }
1399
1400 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1401 {
1402 wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1403 }
1404
1405 #if wxUSE_SPLINES
1406 void wxPostScriptDC::DoDrawSpline( wxList *points )
1407 {
1408 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1409
1410 SetPen( m_pen );
1411
1412 // a and b are not used
1413 //double a, b;
1414 double c, d, x1, y1, x2, y2, x3, y3;
1415 wxPoint *p, *q;
1416
1417 wxList::compatibility_iterator node = points->GetFirst();
1418 p = (wxPoint *)node->GetData();
1419 x1 = p->x;
1420 y1 = p->y;
1421
1422 node = node->GetNext();
1423 p = (wxPoint *)node->GetData();
1424 c = p->x;
1425 d = p->y;
1426 x3 =
1427 #if 0
1428 a =
1429 #endif
1430 (double)(x1 + c) / 2;
1431 y3 =
1432 #if 0
1433 b =
1434 #endif
1435 (double)(y1 + d) / 2;
1436
1437 PsPrintf( wxT("newpath\n")
1438 wxT("%d %d moveto\n")
1439 wxT("%d %d lineto\n"),
1440 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1441 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1442
1443 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1444 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1445
1446 node = node->GetNext();
1447 while (node)
1448 {
1449 q = (wxPoint *)node->GetData();
1450
1451 x1 = x3;
1452 y1 = y3;
1453 x2 = c;
1454 y2 = d;
1455 c = q->x;
1456 d = q->y;
1457 x3 = (double)(x2 + c) / 2;
1458 y3 = (double)(y2 + d) / 2;
1459
1460 PsPrintf( wxT("%d %d %d %d %d %d DrawSplineSection\n"),
1461 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1462 LogicalToDeviceX((wxCoord)x2), LogicalToDeviceY((wxCoord)y2),
1463 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1464
1465 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1466 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1467
1468 node = node->GetNext();
1469 }
1470
1471 /*
1472 At this point, (x2,y2) and (c,d) are the position of the
1473 next-to-last and last point respectively, in the point list
1474 */
1475
1476 PsPrintf( wxT("%d %d lineto\n")
1477 wxT("stroke\n"),
1478 LogicalToDeviceX((wxCoord)c), LogicalToDeviceY((wxCoord)d) );
1479 }
1480 #endif // wxUSE_SPLINES
1481
1482 wxCoord wxPostScriptDC::GetCharWidth() const
1483 {
1484 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1485 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1486 }
1487
1488 void wxPostScriptDC::SetPrintData(const wxPrintData& data)
1489 {
1490 m_printData = data;
1491
1492 int h = 0;
1493 GetSize( NULL, &h );
1494 SetDeviceLocalOrigin( 0, h );
1495 }
1496
1497 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1498 {
1499 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1500
1501 m_signX = (xLeftRight ? 1 : -1);
1502 m_signY = (yBottomUp ? 1 : -1);
1503
1504 ComputeScaleAndOrigin();
1505 }
1506
1507 void wxPostScriptDC::SetMapMode(int mode)
1508 {
1509 wxDCBase::SetMapMode(mode);
1510 }
1511
1512 void wxPostScriptDC::SetUserScale(double x, double y)
1513 {
1514 wxDCBase::SetUserScale(x,y);
1515 }
1516
1517 void wxPostScriptDC::SetLogicalScale(double x, double y)
1518 {
1519 wxDCBase::SetLogicalScale(x,y);
1520 }
1521
1522 void wxPostScriptDC::SetLogicalOrigin(wxCoord x, wxCoord y)
1523 {
1524 wxDCBase::SetLogicalOrigin(x,y);
1525 }
1526
1527 void wxPostScriptDC::SetDeviceOrigin(wxCoord x, wxCoord y)
1528 {
1529 wxDCBase::SetDeviceOrigin(x,y);
1530 }
1531
1532 void wxPostScriptDC::DoGetSize(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 = 595;
1541 int h = 842;
1542 if (paper)
1543 {
1544 w = paper->GetSizeDeviceUnits().x;
1545 h = paper->GetSizeDeviceUnits().y;
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 = (int)(w * ms_PSScaleFactor);
1556 if (height) *height = (int)(h * ms_PSScaleFactor);
1557 }
1558
1559 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1560 {
1561 wxPaperSize id = m_printData.GetPaperId();
1562
1563 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1564
1565 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1566
1567 int w = 210;
1568 int h = 297;
1569 if (paper)
1570 {
1571 w = paper->GetWidth() / 10;
1572 h = paper->GetHeight() / 10;
1573 }
1574
1575 if (m_printData.GetOrientation() == wxLANDSCAPE)
1576 {
1577 int tmp = w;
1578 w = h;
1579 h = tmp;
1580 }
1581
1582 if (width) *width = w;
1583 if (height) *height = h;
1584 }
1585
1586 // Resolution in pixels per logical inch
1587 wxSize wxPostScriptDC::GetPPI(void) const
1588 {
1589 return wxSize((int)(72 * ms_PSScaleFactor),
1590 (int)(72 * ms_PSScaleFactor));
1591 }
1592
1593
1594 bool wxPostScriptDC::StartDoc( const wxString& message )
1595 {
1596 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1597
1598 if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1599 {
1600 if (m_printData.GetFilename() == wxEmptyString)
1601 {
1602 wxString filename = wxGetTempFileName( wxT("ps") );
1603 m_printData.SetFilename(filename);
1604 }
1605
1606 m_pstream = wxFopen( m_printData.GetFilename(), wxT("w+") );
1607
1608 if (!m_pstream)
1609 {
1610 wxLogError( _("Cannot open file for PostScript printing!"));
1611 m_ok = false;
1612 return false;
1613 }
1614 }
1615
1616 m_ok = true;
1617 m_title = message;
1618
1619 PsPrint( "%!PS-Adobe-2.0\n" );
1620 PsPrintf( wxT("%%%%Title: %s\n"), m_title.c_str() );
1621 PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1622 PsPrintf( wxT("%%%%CreationDate: %s\n"), wxNow().c_str() );
1623 if (m_printData.GetOrientation() == wxLANDSCAPE)
1624 PsPrint( "%%Orientation: Landscape\n" );
1625 else
1626 PsPrint( "%%Orientation: Portrait\n" );
1627
1628 // PsPrintf( wxT("%%%%Pages: %d\n"), (wxPageNumber - 1) );
1629
1630 const wxChar *paper;
1631 switch (m_printData.GetPaperId())
1632 {
1633 case wxPAPER_LETTER: paper = wxT("Letter"); break; // Letter: paper ""; 8 1/2 by 11 inches
1634 case wxPAPER_LEGAL: paper = wxT("Legal"); break; // Legal, 8 1/2 by 14 inches
1635 case wxPAPER_A4: paper = wxT("A4"); break; // A4 Sheet, 210 by 297 millimeters
1636 case wxPAPER_TABLOID: paper = wxT("Tabloid"); break; // Tabloid, 11 by 17 inches
1637 case wxPAPER_LEDGER: paper = wxT("Ledger"); break; // Ledger, 17 by 11 inches
1638 case wxPAPER_STATEMENT: paper = wxT("Statement"); break; // Statement, 5 1/2 by 8 1/2 inches
1639 case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break; // Executive, 7 1/4 by 10 1/2 inches
1640 case wxPAPER_A3: paper = wxT("A3"); break; // A3 sheet, 297 by 420 millimeters
1641 case wxPAPER_A5: paper = wxT("A5"); break; // A5 sheet, 148 by 210 millimeters
1642 case wxPAPER_B4: paper = wxT("B4"); break; // B4 sheet, 250 by 354 millimeters
1643 case wxPAPER_B5: paper = wxT("B5"); break; // B5 sheet, 182-by-257-millimeter paper
1644 case wxPAPER_FOLIO: paper = wxT("Folio"); break; // Folio, 8-1/2-by-13-inch paper
1645 case wxPAPER_QUARTO: paper = wxT("Quaro"); break; // Quarto, 215-by-275-millimeter paper
1646 case wxPAPER_10X14: paper = wxT("10x14"); break; // 10-by-14-inch sheet
1647 default: paper = wxT("A4");
1648 }
1649 PsPrintf( wxT("%%%%DocumentPaperSizes: %s\n"), paper );
1650 PsPrint( "%%EndComments\n\n" );
1651
1652 PsPrint( "%%BeginProlog\n" );
1653 PsPrint( wxPostScriptHeaderConicTo );
1654 PsPrint( wxPostScriptHeaderEllipse );
1655 PsPrint( wxPostScriptHeaderEllipticArc );
1656 PsPrint( wxPostScriptHeaderColourImage );
1657 PsPrint( wxPostScriptHeaderReencodeISO1 );
1658 PsPrint( wxPostScriptHeaderReencodeISO2 );
1659 if (wxPostScriptHeaderSpline)
1660 PsPrint( wxPostScriptHeaderSpline );
1661 PsPrint( "%%EndProlog\n" );
1662
1663 SetBrush( *wxBLACK_BRUSH );
1664 SetPen( *wxBLACK_PEN );
1665 SetBackground( *wxWHITE_BRUSH );
1666 SetTextForeground( *wxBLACK );
1667
1668 // set origin according to paper size
1669 SetDeviceOrigin( 0,0 );
1670
1671 wxPageNumber = 1;
1672 m_pageNumber = 1;
1673 return true;
1674 }
1675
1676 void wxPostScriptDC::EndDoc ()
1677 {
1678 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1679
1680 if (m_clipping)
1681 {
1682 m_clipping = false;
1683 PsPrint( "grestore\n" );
1684 }
1685
1686 if ( m_pstream ) {
1687 fclose( m_pstream );
1688 m_pstream = (FILE *) NULL;
1689 }
1690
1691 #if 0
1692 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1693 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1694 double wx_printer_scale_x, wx_printer_scale_y;
1695
1696 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1697 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1698
1699 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1700 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1701
1702 // Compute the bounding box. Note that it is in the default user
1703 // coordinate system, thus we have to convert the values.
1704 wxCoord minX = (wxCoord) LogicalToDeviceX(m_minX);
1705 wxCoord minY = (wxCoord) LogicalToDeviceY(m_minY);
1706 wxCoord maxX = (wxCoord) LogicalToDeviceX(m_maxX);
1707 wxCoord maxY = (wxCoord) LogicalToDeviceY(m_maxY);
1708
1709 // LOG2DEV may have changed the minimum to maximum vice versa
1710 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1711 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1712
1713 // account for used scaling (boundingbox is before scaling in ps-file)
1714 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1715 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1716
1717 wxCoord llx, lly, urx, ury;
1718 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1719 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1720 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1721 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1722 // (end of bounding box computation)
1723
1724
1725 // If we're landscape, our sense of "x" and "y" is reversed.
1726 if (m_printData.GetOrientation() == wxLANDSCAPE)
1727 {
1728 wxCoord tmp;
1729 tmp = llx; llx = lly; lly = tmp;
1730 tmp = urx; urx = ury; ury = tmp;
1731
1732 // We need either the two lines that follow, or we need to subtract
1733 // min_x from real_translate_y, which is commented out below.
1734 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1735 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1736 }
1737
1738 // The Adobe specifications call for integers; we round as to make
1739 // the bounding larger.
1740 PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1741 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1742 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1743
1744 // To check the correctness of the bounding box, postscript commands
1745 // to draw a box corresponding to the bounding box are generated below.
1746 // But since we typically don't want to print such a box, the postscript
1747 // commands are generated within comments. These lines appear before any
1748 // adjustment of scale, rotation, or translation, and hence are in the
1749 // default user coordinates.
1750 PsPrint( "% newpath\n" );
1751 PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1752 PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1753 PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1754 PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1755 #endif
1756
1757 #ifndef __WXMSW__
1758 wxPostScriptPrintNativeData *data =
1759 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1760
1761 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1762 {
1763 wxString command;
1764 command += data->GetPrinterCommand();
1765 command += wxT(" ");
1766 command += data->GetPrinterOptions();
1767 command += wxT(" ");
1768 command += m_printData.GetFilename();
1769
1770 wxExecute( command, true );
1771 wxRemoveFile( m_printData.GetFilename() );
1772 }
1773 #endif
1774 }
1775
1776 void wxPostScriptDC::StartPage()
1777 {
1778 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1779
1780 PsPrintf( wxT("%%%%Page: %d\n"), wxPageNumber++ );
1781
1782 // What is this one supposed to do? RR.
1783 // *m_pstream << "matrix currentmatrix\n";
1784
1785 // Added by Chris Breeze
1786
1787 // Each page starts with an "initgraphics" which resets the
1788 // transformation and so we need to reset the origin
1789 // (and rotate the page for landscape printing)
1790
1791 // Output scaling
1792 wxCoord translate_x, translate_y;
1793 double scale_x, scale_y;
1794
1795 wxPostScriptPrintNativeData *data =
1796 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1797
1798 translate_x = (wxCoord)data->GetPrinterTranslateX();
1799 translate_y = (wxCoord)data->GetPrinterTranslateY();
1800
1801 scale_x = data->GetPrinterScaleX();
1802 scale_y = data->GetPrinterScaleY();
1803
1804 if (m_printData.GetOrientation() == wxLANDSCAPE)
1805 {
1806 int h;
1807 GetSize( (int*) NULL, &h );
1808 translate_y -= h;
1809 PsPrint( "90 rotate\n" );
1810 // I copied this one from a PostScript tutorial, but to no avail. RR.
1811 // PsPrint( "90 rotate llx neg ury nef translate\n" );
1812 }
1813
1814 char buffer[100];
1815 sprintf( buffer, "%.8f %.8f scale\n", scale_x / ms_PSScaleFactor,
1816 scale_y / ms_PSScaleFactor);
1817 for (int i = 0; i < 100; i++)
1818 if (buffer[i] == ',') buffer[i] = '.';
1819 PsPrint( buffer );
1820
1821 PsPrintf( wxT("%d %d translate\n"), translate_x, translate_y );
1822 }
1823
1824 void wxPostScriptDC::EndPage ()
1825 {
1826 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1827
1828 PsPrint( "showpage\n" );
1829 }
1830
1831 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
1832 wxCoord fwidth, wxCoord fheight,
1833 wxDC *source,
1834 wxCoord xsrc, wxCoord ysrc,
1835 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1836 {
1837 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1838
1839 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1840
1841 /* blit into a bitmap */
1842 wxBitmap bitmap( (int)fwidth, (int)fheight );
1843 wxMemoryDC memDC;
1844 memDC.SelectObject(bitmap);
1845 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1846 memDC.SelectObject(wxNullBitmap);
1847
1848 /* draw bitmap. scaling and positioning is done there */
1849 DrawBitmap( bitmap, xdest, ydest );
1850
1851 return true;
1852 }
1853
1854 wxCoord wxPostScriptDC::GetCharHeight() const
1855 {
1856 if (m_font.Ok())
1857 return m_font.GetPointSize();
1858 else
1859 return 12;
1860 }
1861
1862 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
1863 wxCoord *x, wxCoord *y,
1864 wxCoord *descent, wxCoord *externalLeading,
1865 const wxFont *theFont ) const
1866 {
1867 const wxFont *fontToUse = theFont;
1868
1869 if (!fontToUse) fontToUse = &m_font;
1870
1871 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
1872
1873 if (string.empty())
1874 {
1875 if (x) (*x) = 0;
1876 if (y) (*y) = 0;
1877 if (descent) (*descent) = 0;
1878 if (externalLeading) (*externalLeading) = 0;
1879 return;
1880 }
1881
1882 // GTK 2.0
1883
1884 const wxWX2MBbuf strbuf = string.mb_str();
1885
1886 #if !wxUSE_AFM_FOR_POSTSCRIPT
1887 /* Provide a VERY rough estimate (avoid using it).
1888 * Produces accurate results for mono-spaced font
1889 * such as Courier (aka wxMODERN) */
1890
1891 int height = 12;
1892 if (fontToUse)
1893 {
1894 height = fontToUse->GetPointSize();
1895 }
1896 if ( x )
1897 *x = strlen (strbuf) * height * 72 / 120;
1898 if ( y )
1899 *y = (wxCoord) (height * 1.32); /* allow for descender */
1900 if (descent) *descent = 0;
1901 if (externalLeading) *externalLeading = 0;
1902 #else
1903
1904 /* method for calculating string widths in postscript:
1905 / read in the AFM (adobe font metrics) file for the
1906 / actual font, parse it and extract the character widths
1907 / and also the descender. this may be improved, but for now
1908 / it works well. the AFM file is only read in if the
1909 / font is changed. this may be chached in the future.
1910 / calls to GetTextExtent with the font unchanged are rather
1911 / efficient!!!
1912 /
1913 / for each font and style used there is an AFM file necessary.
1914 / currently i have only files for the roman font family.
1915 / I try to get files for the other ones!
1916 /
1917 / CAVE: the size of the string is currently always calculated
1918 / in 'points' (1/72 of an inch). this should later on be
1919 / changed to depend on the mapping mode.
1920 / CAVE: the path to the AFM files must be set before calling this
1921 / function. this is usually done by a call like the following:
1922 / wxSetAFMPath("d:\\wxw161\\afm\\");
1923 /
1924 / example:
1925 /
1926 / wxPostScriptDC dc(NULL, true);
1927 / if (dc.Ok()){
1928 / wxSetAFMPath("d:\\wxw161\\afm\\");
1929 / dc.StartDoc("Test");
1930 / dc.StartPage();
1931 / wxCoord w,h;
1932 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
1933 / dc.GetTextExtent("Hallo",&w,&h);
1934 / dc.EndPage();
1935 / dc.EndDoc();
1936 / }
1937 /
1938 / by steve (stefan.hammes@urz.uni-heidelberg.de)
1939 / created: 10.09.94
1940 / updated: 14.05.95 */
1941
1942 /* these static vars are for storing the state between calls */
1943 static int lastFamily= INT_MIN;
1944 static int lastSize= INT_MIN;
1945 static int lastStyle= INT_MIN;
1946 static int lastWeight= INT_MIN;
1947 static int lastDescender = INT_MIN;
1948 static int lastWidths[256]; /* widths of the characters */
1949
1950 double UnderlinePosition = 0.0;
1951 double UnderlineThickness = 0.0;
1952
1953 // Get actual parameters
1954 int Family = fontToUse->GetFamily();
1955 int Size = fontToUse->GetPointSize();
1956 int Style = fontToUse->GetStyle();
1957 int Weight = fontToUse->GetWeight();
1958
1959 // If we have another font, read the font-metrics
1960 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
1961 {
1962 // Store actual values
1963 lastFamily = Family;
1964 lastSize = Size;
1965 lastStyle = Style;
1966 lastWeight = Weight;
1967
1968 const wxChar *name;
1969
1970 switch (Family)
1971 {
1972 case wxMODERN:
1973 case wxTELETYPE:
1974 {
1975 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
1976 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
1977 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
1978 else name = wxT("Cour.afm");
1979 break;
1980 }
1981 case wxROMAN:
1982 {
1983 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
1984 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
1985 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
1986 else name = wxT("TimesRo.afm");
1987 break;
1988 }
1989 case wxSCRIPT:
1990 {
1991 name = wxT("Zapf.afm");
1992 break;
1993 }
1994 case wxSWISS:
1995 default:
1996 {
1997 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
1998 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
1999 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
2000 else name = wxT("Helv.afm");
2001 break;
2002 }
2003 }
2004
2005 FILE *afmFile = NULL;
2006
2007 // Get the directory of the AFM files
2008 wxString afmName;
2009
2010 // VZ: I don't know if the cast always works under Unix but it clearly
2011 // never does under Windows where the pointer is
2012 // wxWindowsPrintNativeData and so calling GetFontMetricPath() on
2013 // it just crashes
2014 #ifndef __WIN32__
2015 wxPostScriptPrintNativeData *data =
2016 wxDynamicCast(m_printData.GetNativeData(), wxPostScriptPrintNativeData);
2017
2018 if (data && !data->GetFontMetricPath().empty())
2019 {
2020 afmName = data->GetFontMetricPath();
2021 afmName << wxFILE_SEP_PATH << name;
2022 }
2023 #endif // __WIN32__
2024
2025 if ( !afmName.empty() )
2026 afmFile = wxFopen(afmName, wxT("r"));
2027
2028 if ( !afmFile )
2029 {
2030 #if defined(__UNIX__) && !defined(__VMS__)
2031 afmName = wxGetDataDir();
2032 #else // !__UNIX__
2033 afmName = wxStandardPaths::Get().GetDataDir();
2034 #endif // __UNIX__/!__UNIX__
2035
2036 afmName << wxFILE_SEP_PATH
2037 #if defined(__LINUX__) || defined(__FREEBSD__)
2038 << wxT("gs_afm") << wxFILE_SEP_PATH
2039 #else
2040 << wxT("afm") << wxFILE_SEP_PATH
2041 #endif
2042 << name;
2043 afmFile = wxFopen(afmName,wxT("r"));
2044 }
2045
2046 /* 2. open and process the file
2047 / a short explanation of the AFM format:
2048 / we have for each character a line, which gives its size
2049 / e.g.:
2050 /
2051 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2052 /
2053 / that means, we have a character with ascii code 63, and width
2054 / (444/1000 * fontSize) points.
2055 / the other data is ignored for now!
2056 /
2057 / when the font has changed, we read in the right AFM file and store the
2058 / character widths in an array, which is processed below (see point 3.). */
2059 if (afmFile==NULL)
2060 {
2061 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2062 wxLogDebug( wxT(" using approximate values"));
2063 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2064 lastDescender = -150; /* dito. */
2065 }
2066 else
2067 {
2068 /* init the widths array */
2069 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2070 /* some variables for holding parts of a line */
2071 char cString[10], semiString[10], WXString[10];
2072 char descString[20];
2073 char upString[30], utString[30];
2074 char encString[50];
2075 char line[256];
2076 int ascii,cWidth;
2077 /* read in the file and parse it */
2078 while(fgets(line,sizeof(line),afmFile)!=NULL)
2079 {
2080 /* A.) check for descender definition */
2081 if (strncmp(line,"Descender",9)==0)
2082 {
2083 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2084 (strcmp(descString,"Descender")!=0))
2085 {
2086 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2087 }
2088 }
2089 /* JC 1.) check for UnderlinePosition */
2090 else if(strncmp(line,"UnderlinePosition",17)==0)
2091 {
2092 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2093 (strcmp(upString,"UnderlinePosition")!=0))
2094 {
2095 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2096 }
2097 }
2098 /* JC 2.) check for UnderlineThickness */
2099 else if(strncmp(line,"UnderlineThickness",18)==0)
2100 {
2101 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2102 (strcmp(utString,"UnderlineThickness")!=0))
2103 {
2104 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2105 }
2106 }
2107 /* JC 3.) check for EncodingScheme */
2108 else if(strncmp(line,"EncodingScheme",14)==0)
2109 {
2110 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2111 (strcmp(utString,"EncodingScheme")!=0))
2112 {
2113 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2114 }
2115 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2116 {
2117 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2118 afmName.c_str(),line, encString);
2119 }
2120 }
2121 /* B.) check for char-width */
2122 else if(strncmp(line,"C ",2)==0)
2123 {
2124 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2125 {
2126 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2127 }
2128 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2129 {
2130 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2131 }
2132 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2133 if (ascii>=0 && ascii<256)
2134 {
2135 lastWidths[ascii] = cWidth; /* store width */
2136 }
2137 else
2138 {
2139 /* MATTHEW: this happens a lot; don't print an error */
2140 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2141 }
2142 }
2143 /* C.) ignore other entries. */
2144 }
2145 fclose(afmFile);
2146 }
2147 /* hack to compute correct values for german 'Umlaute'
2148 / the correct way would be to map the character names
2149 / like 'adieresis' to corresp. positions of ISOEnc and read
2150 / these values from AFM files, too. Maybe later ... */
2151
2152 // NB: casts to int are needed to suppress gcc 3.3 warnings
2153 lastWidths[196] = lastWidths[(int)'A']; // Ä
2154 lastWidths[228] = lastWidths[(int)'a']; // ä
2155 lastWidths[214] = lastWidths[(int)'O']; // Ö
2156 lastWidths[246] = lastWidths[(int)'o']; // ö
2157 lastWidths[220] = lastWidths[(int)'U']; // Ü
2158 lastWidths[252] = lastWidths[(int)'u']; // ü
2159 lastWidths[223] = lastWidths[(int)251]; // ß
2160
2161 /* JC: calculate UnderlineThickness/UnderlinePosition */
2162
2163 // VS: dirty, but is there any better solution?
2164 double *pt;
2165 pt = (double*) &m_underlinePosition;
2166 *pt = LogicalToDeviceYRel((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2167 pt = (double*) &m_underlineThickness;
2168 *pt = LogicalToDeviceYRel((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2169
2170 }
2171
2172
2173 /* 3. now the font metrics are read in, calc size this
2174 / is done by adding the widths of the characters in the
2175 / string. they are given in 1/1000 of the size! */
2176
2177 long sum=0;
2178 wxCoord height=Size; /* by default */
2179 unsigned char *p;
2180 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2181 {
2182 if(lastWidths[*p]== INT_MIN)
2183 {
2184 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2185 sum += lastWidths[(unsigned char)' ']; /* assume space */
2186 }
2187 else
2188 {
2189 sum += lastWidths[*p];
2190 }
2191 }
2192
2193 double widthSum = sum;
2194 widthSum *= Size;
2195 widthSum /= 1000.0F;
2196
2197 /* add descender to height (it is usually a negative value) */
2198 //if (lastDescender != INT_MIN)
2199 //{
2200 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2201 //}
2202 // - commented by V. Slavik - height already contains descender in it
2203 // (judging from few experiments)
2204
2205 /* return size values */
2206 if ( x )
2207 *x = (wxCoord)widthSum;
2208 if ( y )
2209 *y = height;
2210
2211 /* return other parameters */
2212 if (descent)
2213 {
2214 if(lastDescender!=INT_MIN)
2215 {
2216 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2217 }
2218 else
2219 {
2220 *descent = 0;
2221 }
2222 }
2223
2224 /* currently no idea how to calculate this! */
2225 if (externalLeading) *externalLeading = 0;
2226 #endif
2227 // Use AFM
2228 }
2229
2230 // print postscript datas via required method (file, stream)
2231 #if !wxUSE_UTF8_LOCALE_ONLY
2232 void wxPostScriptDC::DoPsPrintfFormatWchar(const wxChar *fmt, ...)
2233 {
2234 va_list argptr;
2235 va_start(argptr, fmt);
2236
2237 PsPrint( wxString::FormatV( fmt, argptr ) );
2238 }
2239 #endif // !wxUSE_UTF8_LOCALE_ONLY
2240
2241 #if wxUSE_UNICODE_UTF8
2242 void wxPostScriptDC::DoPsPrintfFormatUtf8(const char *fmt, ...)
2243 {
2244 va_list argptr;
2245 va_start(argptr, fmt);
2246
2247 PsPrint( wxString::FormatV( fmt, argptr ) );
2248 }
2249 #endif // wxUSE_UNICODE_UTF8
2250
2251 void wxPostScriptDC::PsPrint( const wxString& str )
2252 {
2253 const wxWX2MBbuf psdata(str.mb_str(wxConvUTF8));
2254
2255 wxPostScriptPrintNativeData *data =
2256 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2257
2258 switch (m_printData.GetPrintMode())
2259 {
2260 #if wxUSE_STREAMS
2261 // append to output stream
2262 case wxPRINT_MODE_STREAM:
2263 {
2264 wxOutputStream* outputstream = data->GetOutputStream();
2265 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2266 outputstream->Write( psdata, strlen( psdata ) );
2267 }
2268 break;
2269 #endif // wxUSE_STREAMS
2270
2271 // save data into file
2272 default:
2273 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2274 fwrite( psdata, 1, strlen( psdata ), m_pstream );
2275 }
2276 }
2277
2278 void wxPostScriptDC::PsPrint( int ch )
2279 {
2280 wxPostScriptPrintNativeData *data =
2281 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2282
2283 switch (m_printData.GetPrintMode())
2284 {
2285 #if wxUSE_STREAMS
2286 // append to output stream
2287 case wxPRINT_MODE_STREAM:
2288 {
2289 wxOutputStream* outputstream = data->GetOutputStream();
2290 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2291 outputstream->PutC( (char)ch );
2292 }
2293 break;
2294 #endif // wxUSE_STREAMS
2295
2296 // save data into file
2297 default:
2298 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2299 fputc( ch, m_pstream );
2300 }
2301 }
2302
2303 #endif // wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT
2304
2305 // vi:sts=4:sw=4:et
wxWidgets (Impactor)