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Remove several hack from PS code, use high resolution code from GNOME print, invert...
[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 #ifdef __WXMSW__
39
40 #ifdef DrawText
41 #undef DrawText
42 #endif
43
44 #ifdef StartDoc
45 #undef StartDoc
46 #endif
47
48 #ifdef GetCharWidth
49 #undef GetCharWidth
50 #endif
51
52 #ifdef FindWindow
53 #undef FindWindow
54 #endif
55
56 #endif
57
58 //-----------------------------------------------------------------------------
59 // start and end of document/page
60 //-----------------------------------------------------------------------------
61
62 static const char *wxPostScriptHeaderConicTo = "\
63 /conicto {\n\
64 /to_y exch def\n\
65 /to_x exch def\n\
66 /conic_cntrl_y exch def\n\
67 /conic_cntrl_x exch def\n\
68 currentpoint\n\
69 /p0_y exch def\n\
70 /p0_x exch def\n\
71 /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\
72 /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\
73 /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\
74 /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\
75 p1_x p1_y p2_x p2_y to_x to_y curveto\n\
76 } bind def\n\
77 ";
78
79 static const char *wxPostScriptHeaderEllipse = "\
80 /ellipsedict 8 dict def\n\
81 ellipsedict /mtrx matrix put\n\
82 /ellipse {\n\
83 ellipsedict begin\n\
84 /endangle exch def\n\
85 /startangle exch def\n\
86 /yrad exch def\n\
87 /xrad exch def\n\
88 /y exch def\n\
89 /x exch def\n\
90 /savematrix mtrx currentmatrix def\n\
91 x y translate\n\
92 xrad yrad scale\n\
93 0 0 1 startangle endangle arc\n\
94 savematrix setmatrix\n\
95 end\n\
96 } def\n\
97 ";
98
99 static const char *wxPostScriptHeaderEllipticArc= "\
100 /ellipticarcdict 8 dict def\n\
101 ellipticarcdict /mtrx matrix put\n\
102 /ellipticarc\n\
103 { ellipticarcdict begin\n\
104 /do_fill exch def\n\
105 /endangle exch def\n\
106 /startangle exch def\n\
107 /yrad exch def\n\
108 /xrad exch def \n\
109 /y exch def\n\
110 /x exch def\n\
111 /savematrix mtrx currentmatrix def\n\
112 x y translate\n\
113 xrad yrad scale\n\
114 do_fill { 0 0 moveto } if\n\
115 0 0 1 startangle endangle arc\n\
116 savematrix setmatrix\n\
117 do_fill { fill }{ stroke } ifelse\n\
118 end\n\
119 } def\n";
120
121 static const char *wxPostScriptHeaderSpline = "\
122 /DrawSplineSection {\n\
123 /y3 exch def\n\
124 /x3 exch def\n\
125 /y2 exch def\n\
126 /x2 exch def\n\
127 /y1 exch def\n\
128 /x1 exch def\n\
129 /xa x1 x2 x1 sub 0.666667 mul add def\n\
130 /ya y1 y2 y1 sub 0.666667 mul add def\n\
131 /xb x3 x2 x3 sub 0.666667 mul add def\n\
132 /yb y3 y2 y3 sub 0.666667 mul add def\n\
133 x1 y1 lineto\n\
134 xa ya xb yb x3 y3 curveto\n\
135 } def\n\
136 ";
137
138 static const char *wxPostScriptHeaderColourImage = "\
139 % define 'colorimage' if it isn't defined\n\
140 % ('colortogray' and 'mergeprocs' come from xwd2ps\n\
141 % via xgrab)\n\
142 /colorimage where % do we know about 'colorimage'?\n\
143 { pop } % yes: pop off the 'dict' returned\n\
144 { % no: define one\n\
145 /colortogray { % define an RGB->I function\n\
146 /rgbdata exch store % call input 'rgbdata'\n\
147 rgbdata length 3 idiv\n\
148 /npixls exch store\n\
149 /rgbindx 0 store\n\
150 0 1 npixls 1 sub {\n\
151 grays exch\n\
152 rgbdata rgbindx get 20 mul % Red\n\
153 rgbdata rgbindx 1 add get 32 mul % Green\n\
154 rgbdata rgbindx 2 add get 12 mul % Blue\n\
155 add add 64 idiv % I = .5G + .31R + .18B\n\
156 put\n\
157 /rgbindx rgbindx 3 add store\n\
158 } for\n\
159 grays 0 npixls getinterval\n\
160 } bind def\n\
161 \n\
162 % Utility procedure for colorimage operator.\n\
163 % This procedure takes two procedures off the\n\
164 % stack and merges them into a single procedure.\n\
165 \n\
166 /mergeprocs { % def\n\
167 dup length\n\
168 3 -1 roll\n\
169 dup\n\
170 length\n\
171 dup\n\
172 5 1 roll\n\
173 3 -1 roll\n\
174 add\n\
175 array cvx\n\
176 dup\n\
177 3 -1 roll\n\
178 0 exch\n\
179 putinterval\n\
180 dup\n\
181 4 2 roll\n\
182 putinterval\n\
183 } bind def\n\
184 \n\
185 /colorimage { % def\n\
186 pop pop % remove 'false 3' operands\n\
187 {colortogray} mergeprocs\n\
188 image\n\
189 } bind def\n\
190 } ifelse % end of 'false' case\n\
191 ";
192
193 static char wxPostScriptHeaderReencodeISO1[] =
194 "\n/reencodeISO {\n"
195 "dup dup findfont dup length dict begin\n"
196 "{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
197 "/Encoding ISOLatin1Encoding def\n"
198 "currentdict end definefont\n"
199 "} def\n"
200 "/ISOLatin1Encoding [\n"
201 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
202 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
203 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
204 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
205 "/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
206 "/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
207 "/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
208 "/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
209 "/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
210 "/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
211 "/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
212 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
213 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
214 "/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
215 "/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
216
217 static char wxPostScriptHeaderReencodeISO2[] =
218 "/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
219 "/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
220 "/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
221 "/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
222 "/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
223 "/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
224 "/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
225 "/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
226 "/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
227 "/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
228 "/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
229 "/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
230 "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
231 "/yacute/thorn/ydieresis\n"
232 "] def\n\n";
233
234 //-------------------------------------------------------------------------------
235 // wxPostScriptDC
236 //-------------------------------------------------------------------------------
237
238 // conversion
239 static const double RAD2DEG = 180.0 / M_PI;
240
241 // we don't want to use only 72 dpi from PS print
242 static const int DPI = 600;
243 static const double PS2DEV = 600.0 / 72.0;
244 static const double DEV2PS = 72.0 / 600.0;
245
246 #define XLOG2DEV(x) ((double)(LogicalToDeviceX(x)) * DEV2PS)
247 #define XLOG2DEVREL(x) ((double)(LogicalToDeviceXRel(x)) * DEV2PS)
248 #define YLOG2DEV(x) ((m_pageHeight - (double)LogicalToDeviceY(x)) * DEV2PS)
249 #define YLOG2DEVREL(x) ((double)(LogicalToDeviceYRel(x)) * DEV2PS)
250
251 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
252
253 //-------------------------------------------------------------------------------
254
255 void wxPostScriptDC::SetResolution(int ppi)
256 {
257 }
258
259 int wxPostScriptDC::GetResolution()
260 {
261 return DPI;
262 }
263
264 wxPostScriptDC::wxPostScriptDC ()
265 {
266 m_pstream = (FILE*) NULL;
267
268 m_currentRed = 0;
269 m_currentGreen = 0;
270 m_currentBlue = 0;
271
272 m_pageNumber = 0;
273
274 m_clipping = false;
275
276 m_underlinePosition = 0.0;
277 m_underlineThickness = 0.0;
278
279 m_pageHeight = 842 * PS2DEV;
280 }
281
282 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
283 {
284 m_pstream = (FILE*) NULL;
285
286 m_currentRed = 0;
287 m_currentGreen = 0;
288 m_currentBlue = 0;
289
290 m_pageNumber = 0;
291
292 m_clipping = false;
293
294 m_underlinePosition = 0.0;
295 m_underlineThickness = 0.0;
296
297 // this calculates m_pageHeight required for
298 // taking the inverted Y axis into account
299 SetPrintData( printData );
300
301 m_ok = true;
302 }
303
304 wxPostScriptDC::~wxPostScriptDC ()
305 {
306 if (m_pstream)
307 {
308 fclose( m_pstream );
309 m_pstream = (FILE*) NULL;
310 }
311 }
312
313 bool wxPostScriptDC::IsOk() const
314 {
315 return m_ok;
316 }
317
318 void wxPostScriptDC::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
319 {
320 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
321
322 if (m_clipping) DestroyClippingRegion();
323
324 wxDC::DoSetClippingRegion(x, y, w, h);
325
326 m_clipping = true;
327
328 wxString buffer;
329 buffer.Printf( "gsave\n"
330 "newpath\n"
331 "%f %f moveto\n"
332 "%f %f lineto\n"
333 "%f %f lineto\n"
334 "%f %f lineto\n"
335 "closepath clip newpath\n",
336 XLOG2DEV(x), YLOG2DEV(y),
337 XLOG2DEV(x+w), YLOG2DEV(y),
338 XLOG2DEV(x+w), YLOG2DEV(y+h),
339 XLOG2DEV(x), YLOG2DEV(y+h) );
340 buffer.Replace( ",", "." );
341 PsPrint( buffer );
342 }
343
344
345 void wxPostScriptDC::DestroyClippingRegion()
346 {
347 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
348
349 if (m_clipping)
350 {
351 m_clipping = false;
352 PsPrint( "grestore\n" );
353 }
354
355 wxDC::DestroyClippingRegion();
356 }
357
358 void wxPostScriptDC::Clear()
359 {
360 // This should fail silently to avoid unnecessary
361 // asserts
362 // wxFAIL_MSG( wxT("wxPostScriptDC::Clear not implemented.") );
363 }
364
365 bool wxPostScriptDC::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
366 {
367 wxFAIL_MSG( wxT("wxPostScriptDC::FloodFill not implemented.") );
368 return false;
369 }
370
371 bool wxPostScriptDC::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
372 {
373 wxFAIL_MSG( wxT("wxPostScriptDC::GetPixel not implemented.") );
374 return false;
375 }
376
377 void wxPostScriptDC::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
378 {
379 wxFAIL_MSG( wxT("wxPostScriptDC::CrossHair not implemented.") );
380 }
381
382 void wxPostScriptDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
383 {
384 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
385
386 if (m_pen.GetStyle() == wxTRANSPARENT) return;
387
388 SetPen( m_pen );
389
390 wxString buffer;
391 buffer.Printf( "newpath\n"
392 "%f %f moveto\n"
393 "%f %f lineto\n"
394 "stroke\n",
395 XLOG2DEV(x1), YLOG2DEV(y1),
396 XLOG2DEV(x2), YLOG2DEV(y2) );
397 buffer.Replace( ",", "." );
398 PsPrint( buffer );
399
400 CalcBoundingBox( x1, y1 );
401 CalcBoundingBox( x2, y2 );
402 }
403
404 void wxPostScriptDC::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
405 {
406 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
407
408 wxCoord dx = x1 - xc;
409 wxCoord dy = y1 - yc;
410 double radius = sqrt( (double)(dx*dx+dy*dy) );
411 double alpha1, alpha2;
412
413 if (x1 == x2 && y1 == y2)
414 {
415 alpha1 = 0.0;
416 alpha2 = 360.0;
417 }
418 else if ( wxIsNullDouble(radius) )
419 {
420 alpha1 =
421 alpha2 = 0.0;
422 }
423 else
424 {
425 alpha1 = (x1 - xc == 0) ?
426 (y1 - yc < 0) ? 90.0 : -90.0 :
427 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
428 alpha2 = (x2 - xc == 0) ?
429 (y2 - yc < 0) ? 90.0 : -90.0 :
430 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
431 }
432 while (alpha1 <= 0) alpha1 += 360;
433 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
434 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
435 while (alpha2 > 360) alpha2 -= 360;
436
437 int i_radius = wxRound( radius );
438
439 if (m_brush.GetStyle() != wxTRANSPARENT)
440 {
441 SetBrush( m_brush );
442
443 wxString buffer;
444 buffer.Printf( "newpath\n"
445 "%f %f %f %f %f %f ellipse\n"
446 "%f %f lineto\n"
447 "closepath\n"
448 "fill\n",
449 XLOG2DEV(xc), YLOG2DEV(yc),
450 XLOG2DEVREL(i_radius), YLOG2DEVREL(i_radius),
451 alpha1, alpha2,
452 XLOG2DEV(xc), YLOG2DEV(yc) );
453 buffer.Replace( ",", "." );
454 PsPrint( buffer );
455
456 CalcBoundingBox( xc-i_radius, yc-i_radius );
457 CalcBoundingBox( xc+i_radius, yc+i_radius );
458 }
459
460 if (m_pen.GetStyle() != wxTRANSPARENT)
461 {
462 SetPen( m_pen );
463
464 wxString buffer;
465 buffer.Printf( "newpath\n"
466 "%f %f %f %f %f %f ellipse\n"
467 "%f %f lineto\n"
468 "stroke\n"
469 "fill\n",
470 XLOG2DEV(xc), YLOG2DEV(yc),
471 XLOG2DEVREL(i_radius), YLOG2DEVREL(i_radius),
472 alpha1, alpha2,
473 XLOG2DEV(xc), YLOG2DEV(yc) );
474 buffer.Replace( ",", "." );
475 PsPrint( buffer );
476
477 CalcBoundingBox( xc-i_radius, yc-i_radius );
478 CalcBoundingBox( xc+i_radius, yc+i_radius );
479 }
480 }
481
482 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
483 {
484 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
485
486 if ( sa >= 360 || sa <= -360 )
487 sa -= int(sa/360)*360;
488 if ( ea >= 360 || ea <=- 360 )
489 ea -= int(ea/360)*360;
490 if ( sa < 0 )
491 sa += 360;
492 if ( ea < 0 )
493 ea += 360;
494
495 if ( wxIsSameDouble(sa, ea) )
496 {
497 DrawEllipse(x,y,w,h);
498 return;
499 }
500
501 if (m_brush.GetStyle () != wxTRANSPARENT)
502 {
503 SetBrush( m_brush );
504
505 wxString buffer;
506 buffer.Printf( "newpath\n"
507 "%f %f %f %f %f %f true ellipticarc\n",
508 XLOG2DEV(x+w/2), YLOG2DEV(y+h/2),
509 XLOG2DEVREL(w/2), YLOG2DEVREL(h/2),
510 sa, ea );
511 buffer.Replace( ",", "." );
512 PsPrint( buffer );
513
514 CalcBoundingBox( x ,y );
515 CalcBoundingBox( x+w, y+h );
516 }
517
518 if (m_pen.GetStyle () != wxTRANSPARENT)
519 {
520 SetPen( m_pen );
521
522 wxString buffer;
523 buffer.Printf( "newpath\n"
524 "%f %f %f %f %f %f false ellipticarc\n",
525 XLOG2DEV(x+w/2), YLOG2DEV(y+h/2),
526 XLOG2DEVREL(w/2), YLOG2DEVREL(h/2),
527 wxRound(sa), wxRound(ea) );
528 buffer.Replace( ",", "." );
529 PsPrint( buffer );
530
531 CalcBoundingBox( x ,y );
532 CalcBoundingBox( x+w, y+h );
533 }
534 }
535
536 void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
537 {
538 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
539
540 if (m_pen.GetStyle() == wxTRANSPARENT) return;
541
542 SetPen (m_pen);
543
544 wxString buffer;
545 buffer.Printf( "newpath\n"
546 "%f %f moveto\n"
547 "%f %f lineto\n"
548 "stroke\n",
549 XLOG2DEV(x), YLOG2DEV(y),
550 XLOG2DEV(x+1), YLOG2DEV(y) );
551 buffer.Replace( ",", "." );
552 PsPrint( buffer );
553
554 CalcBoundingBox( x, y );
555 }
556
557 void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
558 {
559 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
560
561 if (n <= 0) return;
562
563 if (m_brush.GetStyle () != wxTRANSPARENT)
564 {
565 SetBrush( m_brush );
566
567 PsPrint( "newpath\n" );
568
569 double xx = XLOG2DEV(points[0].x + xoffset);
570 double yy = YLOG2DEV(points[0].y + yoffset);
571
572 wxString buffer;
573 buffer.Printf( "%f %f moveto\n", xx, yy );
574 buffer.Replace( ",", "." );
575 PsPrint( buffer );
576
577 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
578
579 for (int i = 1; i < n; i++)
580 {
581 xx = XLOG2DEV(points[i].x + xoffset);
582 yy = YLOG2DEV(points[i].y + yoffset);
583
584 buffer.Printf( "%f %f lineto\n", xx, yy );
585 buffer.Replace( ",", "." );
586 PsPrint( buffer );
587
588 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
589 }
590
591 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
592 }
593
594 if (m_pen.GetStyle () != wxTRANSPARENT)
595 {
596 SetPen( m_pen );
597
598 PsPrint( "newpath\n" );
599
600 double xx = XLOG2DEV(points[0].x + xoffset);
601 double yy = YLOG2DEV(points[0].y + yoffset);
602
603 wxString buffer;
604 buffer.Printf( "%f %f moveto\n", xx, yy );
605 buffer.Replace( ",", "." );
606 PsPrint( buffer );
607
608 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
609
610 for (int i = 1; i < n; i++)
611 {
612 xx = XLOG2DEV(points[i].x + xoffset);
613 yy = YLOG2DEV(points[i].y + yoffset);
614
615 buffer.Printf( "%f %f lineto\n", xx, yy );
616 buffer.Replace( ",", "." );
617 PsPrint( buffer );
618
619 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
620 }
621
622 PsPrint( "closepath\n" );
623 PsPrint( "stroke\n" );
624 }
625 }
626
627 void wxPostScriptDC::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
628 {
629 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
630
631 if (n <= 0) return;
632
633 if (m_brush.GetStyle () != wxTRANSPARENT)
634 {
635 SetBrush( m_brush );
636
637 PsPrint( "newpath\n" );
638
639 int ofs = 0;
640 for (int i = 0; i < n; ofs += count[i++])
641 {
642 double xx = XLOG2DEV(points[ofs].x + xoffset);
643 double yy = YLOG2DEV(points[ofs].y + yoffset);
644
645 wxString buffer;
646 buffer.Printf( "%f %f moveto\n", xx, yy );
647 buffer.Replace( ",", "." );
648 PsPrint( buffer );
649
650 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
651
652 for (int j = 1; j < count[i]; j++)
653 {
654 xx = XLOG2DEV(points[ofs+j].x + xoffset);
655 yy = YLOG2DEV(points[ofs+j].y + yoffset);
656
657 buffer.Printf( "%f %f lineto\n", xx, yy );
658 buffer.Replace( ",", "." );
659 PsPrint( buffer );
660
661 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
662 }
663 }
664 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
665 }
666
667 if (m_pen.GetStyle () != wxTRANSPARENT)
668 {
669 SetPen( m_pen );
670
671 PsPrint( "newpath\n" );
672
673 int ofs = 0;
674 for (int i = 0; i < n; ofs += count[i++])
675 {
676 double xx = XLOG2DEV(points[ofs].x + xoffset);
677 double yy = YLOG2DEV(points[ofs].y + yoffset);
678
679 wxString buffer;
680 buffer.Printf( "%f %f moveto\n", xx, yy );
681 buffer.Replace( ",", "." );
682 PsPrint( buffer );
683
684 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
685
686 for (int j = 1; j < count[i]; j++)
687 {
688 xx = XLOG2DEV(points[ofs+j].x + xoffset);
689 yy = YLOG2DEV(points[ofs+j].y + yoffset);
690
691 buffer.Printf( "%f %f lineto\n", xx, yy );
692 buffer.Replace( ",", "." );
693 PsPrint( buffer );
694
695 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
696 }
697 }
698 PsPrint( "closepath\n" );
699 PsPrint( "stroke\n" );
700 }
701 }
702
703 void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
704 {
705 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
706
707 if (m_pen.GetStyle() == wxTRANSPARENT) return;
708
709 if (n <= 0) return;
710
711 SetPen (m_pen);
712
713 int i;
714 for ( i =0; i<n ; i++ )
715 CalcBoundingBox( points[i].x+xoffset, points[i].y+yoffset );
716
717 wxString buffer;
718 buffer.Printf( "newpath\n"
719 "%f %f moveto\n",
720 XLOG2DEV(points[0].x+xoffset),
721 YLOG2DEV(points[0].y+yoffset) );
722 buffer.Replace( ",", "." );
723 PsPrint( buffer );
724
725 for (i = 1; i < n; i++)
726 {
727 buffer.Printf( "%f %f lineto\n",
728 XLOG2DEV(points[i].x+xoffset),
729 YLOG2DEV(points[i].y+yoffset) );
730 buffer.Replace( ",", "." );
731 PsPrint( buffer );
732 }
733
734 PsPrint( "stroke\n" );
735 }
736
737 void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
738 {
739 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
740
741 if (m_brush.GetStyle () != wxTRANSPARENT)
742 {
743 SetBrush( m_brush );
744
745 wxString buffer;
746 buffer.Printf( "newpath\n"
747 "%f %f moveto\n"
748 "%f %f lineto\n"
749 "%f %f lineto\n"
750 "%f %f lineto\n"
751 "closepath\n"
752 "fill\n",
753 XLOG2DEV(x), YLOG2DEV(y),
754 XLOG2DEV(x + width), YLOG2DEV(y),
755 XLOG2DEV(x + width), YLOG2DEV(y + height),
756 XLOG2DEV(x), YLOG2DEV(y + height) );
757 buffer.Replace( ",", "." );
758 PsPrint( buffer );
759
760 CalcBoundingBox( x, y );
761 CalcBoundingBox( x + width, y + height );
762 }
763
764 if (m_pen.GetStyle () != wxTRANSPARENT)
765 {
766 SetPen (m_pen);
767
768 wxString buffer;
769 buffer.Printf( "newpath\n"
770 "%f %f moveto\n"
771 "%f %f lineto\n"
772 "%f %f lineto\n"
773 "%f %f lineto\n"
774 "closepath\n"
775 "stroke\n",
776 XLOG2DEV(x), YLOG2DEV(y),
777 XLOG2DEV(x + width), YLOG2DEV(y),
778 XLOG2DEV(x + width), YLOG2DEV(y + height),
779 XLOG2DEV(x), YLOG2DEV(y + height) );
780 buffer.Replace( ",", "." );
781 PsPrint( buffer );
782
783 CalcBoundingBox( x, y );
784 CalcBoundingBox( x + width, y + height );
785 }
786 }
787
788 void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
789 {
790 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
791
792 if (radius < 0.0)
793 {
794 // Now, a negative radius is interpreted to mean
795 // 'the proportion of the smallest X or Y dimension'
796 double smallest = width < height ? width : height;
797 radius = (-radius * smallest);
798 }
799
800 wxCoord rad = (wxCoord) radius;
801
802 if (m_brush.GetStyle () != wxTRANSPARENT)
803 {
804 SetBrush( m_brush );
805
806 /* Draw rectangle anticlockwise */
807 wxString buffer;
808 buffer.Printf( "newpath\n"
809 "%f %f %f 90 180 arc\n"
810 "%f %f lineto\n"
811 "%f %f %f 180 270 arc\n"
812 "%f %f lineto\n"
813 "%f %f %f 270 0 arc\n"
814 "%f %f lineto\n"
815 "%f %f %f 0 90 arc\n"
816 "%f %f lineto\n"
817 "closepath\n"
818 "fill\n",
819 XLOG2DEV(x + rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
820 XLOG2DEV(x), YLOG2DEV(y + height - rad),
821 XLOG2DEV(x + rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
822 XLOG2DEV(x + width - rad), YLOG2DEV(y + height),
823 XLOG2DEV(x + width - rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
824 XLOG2DEV(x + width), YLOG2DEV(y + rad),
825 XLOG2DEV(x + width - rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
826 XLOG2DEV(x + rad), YLOG2DEV(y) );
827 buffer.Replace( ",", "." );
828 PsPrint( buffer );
829
830 CalcBoundingBox( x, y );
831 CalcBoundingBox( x + width, y + height );
832 }
833
834 if (m_pen.GetStyle () != wxTRANSPARENT)
835 {
836 SetPen (m_pen);
837
838 /* Draw rectangle anticlockwise */
839 wxString buffer;
840 buffer.Printf( "newpath\n"
841 "%f %f %f 90 180 arc\n"
842 "%f %f lineto\n"
843 "%f %f %f 180 270 arc\n"
844 "%f %f lineto\n"
845 "%f %f %f 270 0 arc\n"
846 "%f %f lineto\n"
847 "%f %f %f 0 90 arc\n"
848 "%f %f lineto\n"
849 "closepath\n"
850 "stroke\n",
851 XLOG2DEV(x + rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
852 XLOG2DEV(x), YLOG2DEV(y + height - rad),
853 XLOG2DEV(x + rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
854 XLOG2DEV(x + width - rad), YLOG2DEV(y + height),
855 XLOG2DEV(x + width - rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
856 XLOG2DEV(x + width), YLOG2DEV(y + rad),
857 XLOG2DEV(x + width - rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
858 XLOG2DEV(x + rad), YLOG2DEV(y) );
859 buffer.Replace( ",", "." );
860 PsPrint( buffer );
861
862 CalcBoundingBox( x, y );
863 CalcBoundingBox( x + width, y + height );
864 }
865 }
866
867 void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
868 {
869 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
870
871 if (m_brush.GetStyle () != wxTRANSPARENT)
872 {
873 SetBrush (m_brush);
874
875 wxString buffer;
876 buffer.Printf( "newpath\n"
877 "%f %f %f %f 0 360 ellipse\n"
878 "fill\n",
879 XLOG2DEV(x + width / 2), YLOG2DEV(y + height / 2),
880 XLOG2DEVREL(width / 2), YLOG2DEVREL(height / 2) );
881 buffer.Replace( ",", "." );
882 PsPrint( buffer );
883
884 CalcBoundingBox( x - width, y - height );
885 CalcBoundingBox( x + width, y + height );
886 }
887
888 if (m_pen.GetStyle () != wxTRANSPARENT)
889 {
890 SetPen (m_pen);
891
892 wxString buffer;
893 buffer.Printf( "newpath\n"
894 "%f %f %f %f 0 360 ellipse\n"
895 "stroke\n",
896 XLOG2DEV(x + width / 2), YLOG2DEV(y + height / 2),
897 XLOG2DEVREL(width / 2), YLOG2DEVREL(height / 2) );
898 buffer.Replace( ",", "." );
899 PsPrint( buffer );
900
901 CalcBoundingBox( x - width, y - height );
902 CalcBoundingBox( x + width, y + height );
903 }
904 }
905
906 void wxPostScriptDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
907 {
908 DrawBitmap( icon, x, y, true );
909 }
910
911 /* this has to be char, not wxChar */
912 static char hexArray[] = "0123456789ABCDEF";
913
914 void wxPostScriptDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
915 {
916 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
917
918 if (!bitmap.Ok()) return;
919
920 wxImage image = bitmap.ConvertToImage();
921
922 if (!image.Ok()) return;
923
924 wxCoord w = image.GetWidth();
925 wxCoord h = image.GetHeight();
926
927 double ww = XLOG2DEVREL(image.GetWidth());
928 double hh = YLOG2DEVREL(image.GetHeight());
929
930 double xx = XLOG2DEV(x);
931 double yy = YLOG2DEV(y + bitmap.GetHeight());
932
933 wxString buffer;
934 buffer.Printf( "/origstate save def\n"
935 "20 dict begin\n"
936 "/pix %f string def\n"
937 "/grays %f string def\n"
938 "/npixels 0 def\n"
939 "/rgbindx 0 def\n"
940 "%f %f translate\n"
941 "%f %f scale\n"
942 "%f %f 8\n"
943 "[%f 0 0 %f 0 %f]\n"
944 "{currentfile pix readhexstring pop}\n"
945 "false 3 colorimage\n",
946 w, w, xx, yy, ww, hh, w, h, w, -h, h );
947 buffer.Replace( ",", "." );
948 PsPrint( buffer );
949
950 unsigned char* data = image.GetData();
951
952 // size of the buffer = width*rgb(3)*hexa(2)+'\n'
953 wxCharBuffer charbuffer(w*6 + 1);
954 int firstDigit, secondDigit;
955
956 //rows
957 for (int j = 0; j < h; j++)
958 {
959 char* bufferindex = charbuffer.data();
960
961 //cols
962 for (int i = 0; i < w*3; i++)
963 {
964 firstDigit = (int)(*data/16.0);
965 secondDigit = (int)(*data - (firstDigit*16.0));
966 *(bufferindex++) = hexArray[firstDigit];
967 *(bufferindex++) = hexArray[secondDigit];
968
969 data++;
970 }
971 *(bufferindex++) = '\n';
972 *bufferindex = 0;
973 PsPrint( charbuffer );
974 }
975
976 PsPrint( "end\n" );
977 PsPrint( "origstate restore\n" );
978 }
979
980 void wxPostScriptDC::SetFont( const wxFont& font )
981 {
982 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
983
984 if (!font.Ok()) return;
985
986 m_font = font;
987
988 int Style = m_font.GetStyle();
989 int Weight = m_font.GetWeight();
990
991 const char *name;
992 switch (m_font.GetFamily())
993 {
994 case wxTELETYPE:
995 case wxMODERN:
996 {
997 if (Style == wxITALIC)
998 {
999 if (Weight == wxBOLD)
1000 name = "/Courier-BoldOblique";
1001 else
1002 name = "/Courier-Oblique";
1003 }
1004 else
1005 {
1006 if (Weight == wxBOLD)
1007 name = "/Courier-Bold";
1008 else
1009 name = "/Courier";
1010 }
1011 break;
1012 }
1013 case wxROMAN:
1014 {
1015 if (Style == wxITALIC)
1016 {
1017 if (Weight == wxBOLD)
1018 name = "/Times-BoldItalic";
1019 else
1020 name = "/Times-Italic";
1021 }
1022 else
1023 {
1024 if (Weight == wxBOLD)
1025 name = "/Times-Bold";
1026 else
1027 name = "/Times-Roman";
1028 }
1029 break;
1030 }
1031 case wxSCRIPT:
1032 {
1033 name = "/ZapfChancery-MediumItalic";
1034 break;
1035 }
1036 case wxSWISS:
1037 default:
1038 {
1039 if (Style == wxITALIC)
1040 {
1041 if (Weight == wxBOLD)
1042 name = "/Helvetica-BoldOblique";
1043 else
1044 name = "/Helvetica-Oblique";
1045 }
1046 else
1047 {
1048 if (Weight == wxBOLD)
1049 name = "/Helvetica-Bold";
1050 else
1051 name = "/Helvetica";
1052 }
1053 break;
1054 }
1055 }
1056
1057 // We may legitimately call SetFont before BeginDoc
1058 if (!m_pstream)
1059 return;
1060
1061 PsPrint( name );
1062 PsPrint( " reencodeISO def\n" );
1063 PsPrint( name );
1064 PsPrint( " findfont\n" );
1065
1066
1067 double size = (double) m_font.GetPointSize();
1068 wxString buffer;
1069 buffer.Printf( "%f scalefont setfont\n", size * DEV2PS * m_scaleX );
1070 buffer.Replace( ",", "." );
1071 PsPrint( buffer );
1072 }
1073
1074 void wxPostScriptDC::SetPen( const wxPen& pen )
1075 {
1076 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1077
1078 if (!pen.Ok()) return;
1079
1080 int oldStyle = m_pen.GetStyle();
1081
1082 m_pen = pen;
1083
1084 double width;
1085
1086 if (m_pen.GetWidth() <= 0)
1087 width = 0.1;
1088 else
1089 width = (double) m_pen.GetWidth();
1090
1091 wxString buffer;
1092 buffer.Printf( "%f setlinewidth\n", width * DEV2PS * m_scaleX );
1093 buffer.Replace( ",", "." );
1094 PsPrint( buffer );
1095
1096 /*
1097 Line style - WRONG: 2nd arg is OFFSET
1098
1099 Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1100 operator correctly. You should look-up this in the Red Book: the 2nd parame-
1101 ter is not number of values in the array of the first one, but an offset
1102 into this description of the pattern. I mean a real *offset* not index
1103 into array. I.e. If the command is [3 4] 1 setdash is used, then there
1104 will be first black line *2* units wxCoord, then space 4 units, then the
1105 pattern of *3* units black, 4 units space will be repeated.
1106 */
1107
1108 static const char *dotted = "[2 5] 2";
1109 static const char *short_dashed = "[4 4] 2";
1110 static const char *wxCoord_dashed = "[4 8] 2";
1111 static const char *dotted_dashed = "[6 6 2 6] 4";
1112
1113 const char *psdash;
1114
1115 switch (m_pen.GetStyle())
1116 {
1117 case wxDOT: psdash = dotted; break;
1118 case wxSHORT_DASH: psdash = short_dashed; break;
1119 case wxLONG_DASH: psdash = wxCoord_dashed; break;
1120 case wxDOT_DASH: psdash = dotted_dashed; break;
1121 case wxUSER_DASH:
1122 {
1123 wxDash *dashes;
1124 int nDashes = m_pen.GetDashes (&dashes);
1125 PsPrint ("[");
1126 for (int i = 0; i < nDashes; ++i)
1127 {
1128 buffer.Printf( "%d ", dashes [i] );
1129 PsPrint( buffer );
1130 }
1131 PsPrint ("] 0 setdash\n");
1132 psdash = 0;
1133 }
1134 break;
1135 case wxSOLID:
1136 case wxTRANSPARENT:
1137 default: psdash = "[] 0"; break;
1138 }
1139
1140 if ( psdash && (oldStyle != m_pen.GetStyle()) )
1141 {
1142 PsPrint( psdash );
1143 PsPrint( " setdash\n" );
1144 }
1145
1146 // Line colour
1147 unsigned char red = m_pen.GetColour().Red();
1148 unsigned char blue = m_pen.GetColour().Blue();
1149 unsigned char green = m_pen.GetColour().Green();
1150
1151 if (!m_colour)
1152 {
1153 // Anything not white is black
1154 if (! (red == (unsigned char) 255 &&
1155 blue == (unsigned char) 255 &&
1156 green == (unsigned char) 255) )
1157 {
1158 red = (unsigned char) 0;
1159 green = (unsigned char) 0;
1160 blue = (unsigned char) 0;
1161 }
1162 // setgray here ?
1163 }
1164
1165 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1166 {
1167 double redPS = (double)(red) / 255.0;
1168 double bluePS = (double)(blue) / 255.0;
1169 double greenPS = (double)(green) / 255.0;
1170
1171 wxString buffer;
1172 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1173 buffer.Replace( ",", "." );
1174 PsPrint( buffer );
1175
1176 m_currentRed = red;
1177 m_currentBlue = blue;
1178 m_currentGreen = green;
1179 }
1180 }
1181
1182 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1183 {
1184 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1185
1186 if (!brush.Ok()) return;
1187
1188 m_brush = brush;
1189
1190 // Brush colour
1191 unsigned char red = m_brush.GetColour().Red();
1192 unsigned char blue = m_brush.GetColour().Blue();
1193 unsigned char green = m_brush.GetColour().Green();
1194
1195 if (!m_colour)
1196 {
1197 // Anything not white is black
1198 if (! (red == (unsigned char) 255 &&
1199 blue == (unsigned char) 255 &&
1200 green == (unsigned char) 255) )
1201 {
1202 red = (unsigned char) 0;
1203 green = (unsigned char) 0;
1204 blue = (unsigned char) 0;
1205 }
1206 // setgray here ?
1207 }
1208
1209 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1210 {
1211 double redPS = (double)(red) / 255.0;
1212 double bluePS = (double)(blue) / 255.0;
1213 double greenPS = (double)(green) / 255.0;
1214
1215 wxString buffer;
1216 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1217 buffer.Replace( ",", "." );
1218 PsPrint( buffer );
1219
1220 m_currentRed = red;
1221 m_currentBlue = blue;
1222 m_currentGreen = green;
1223 }
1224 }
1225
1226 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1227 {
1228 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1229
1230 const wxWX2MBbuf textbuf = text.mb_str();
1231 if (textbuf.data() == NULL)
1232 return;
1233
1234 if (m_textForegroundColour.Ok())
1235 {
1236 unsigned char red = m_textForegroundColour.Red();
1237 unsigned char blue = m_textForegroundColour.Blue();
1238 unsigned char green = m_textForegroundColour.Green();
1239
1240 if (!m_colour)
1241 {
1242 // Anything not white is black
1243 if (! (red == (unsigned char) 255 &&
1244 blue == (unsigned char) 255 &&
1245 green == (unsigned char) 255))
1246 {
1247 red = (unsigned char) 0;
1248 green = (unsigned char) 0;
1249 blue = (unsigned char) 0;
1250 }
1251 }
1252
1253 // maybe setgray here ?
1254 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1255 {
1256 double redPS = (double)(red) / 255.0;
1257 double bluePS = (double)(blue) / 255.0;
1258 double greenPS = (double)(green) / 255.0;
1259
1260 wxString buffer;
1261 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1262 buffer.Replace( ",", "." );
1263 PsPrint( buffer );
1264
1265 m_currentRed = red;
1266 m_currentBlue = blue;
1267 m_currentGreen = green;
1268 }
1269 }
1270
1271 wxCoord text_w, text_h, text_descent;
1272
1273 GetTextExtent(text, &text_w, &text_h, &text_descent);
1274
1275 // VZ: this seems to be unnecessary, so taking it out for now, if it
1276 // doesn't create any problems, remove this comment entirely
1277 //SetFont( m_font );
1278
1279
1280 int size = m_font.GetPointSize();
1281
1282 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1283 // commented by V. Slavik and replaced by accurate version
1284 // - note that there is still rounding error in text_descent!
1285 wxCoord by = y + size - text_descent; // baseline
1286
1287 wxString buffer;
1288 buffer.Printf( "%f %f moveto\n", XLOG2DEV(x), YLOG2DEV(by) );
1289 buffer.Replace( ",", "." );
1290 PsPrint( buffer );
1291 PsPrint( "(" );
1292
1293 size_t len = strlen(textbuf);
1294 size_t i;
1295 for (i = 0; i < len; i++)
1296 {
1297 int c = (unsigned char) textbuf[i];
1298 if (c == ')' || c == '(' || c == '\\')
1299 {
1300 /* Cope with special characters */
1301 PsPrint( "\\" );
1302 PsPrint( (char) c );
1303 }
1304 else if ( c >= 128 )
1305 {
1306 /* Cope with character codes > 127 */
1307 buffer.Printf( "\\%o", c );
1308 PsPrint( buffer );
1309 }
1310 else
1311 {
1312 PsPrint( (char) c );
1313 }
1314 }
1315
1316 PsPrint( ") show\n" );
1317
1318 if (m_font.GetUnderlined())
1319 {
1320 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1321
1322 buffer.Printf( "gsave\n"
1323 "%f %f moveto\n"
1324 "%f setlinewidth\n"
1325 "%f %f lineto\n"
1326 "stroke\n"
1327 "grestore\n",
1328 XLOG2DEV(x), YLOG2DEV(uy),
1329 m_underlineThickness,
1330 XLOG2DEV(x + text_w), YLOG2DEV(uy) );
1331 buffer.Replace( ",", "." );
1332 PsPrint( buffer );
1333 }
1334
1335 CalcBoundingBox( x, y );
1336 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1337 }
1338
1339 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1340 {
1341 if ( wxIsNullDouble(angle) )
1342 {
1343 DoDrawText(text, x, y);
1344 return;
1345 }
1346
1347 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1348
1349 SetFont( m_font );
1350
1351 if (m_textForegroundColour.Ok())
1352 {
1353 unsigned char red = m_textForegroundColour.Red();
1354 unsigned char blue = m_textForegroundColour.Blue();
1355 unsigned char green = m_textForegroundColour.Green();
1356
1357 if (!m_colour)
1358 {
1359 // Anything not white is black
1360 if (! (red == (unsigned char) 255 &&
1361 blue == (unsigned char) 255 &&
1362 green == (unsigned char) 255))
1363 {
1364 red = (unsigned char) 0;
1365 green = (unsigned char) 0;
1366 blue = (unsigned char) 0;
1367 }
1368 }
1369
1370 // maybe setgray here ?
1371 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1372 {
1373 double redPS = (double)(red) / 255.0;
1374 double bluePS = (double)(blue) / 255.0;
1375 double greenPS = (double)(green) / 255.0;
1376
1377 wxString buffer;
1378 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1379 buffer.Replace( ",", "." );
1380 PsPrint( buffer );
1381
1382 m_currentRed = red;
1383 m_currentBlue = blue;
1384 m_currentGreen = green;
1385 }
1386 }
1387
1388 int size = m_font.GetPointSize();
1389
1390 wxString buffer;
1391 buffer.Printf( "%f %f moveto\n", XLOG2DEV(x), YLOG2DEV(y));
1392 buffer.Replace( ",", "." );
1393 PsPrint( buffer );
1394
1395 buffer.Printf( "%f rotate\n", angle );
1396 buffer.Replace( ",", "." );
1397 PsPrint( buffer );
1398
1399 PsPrint( "(" );
1400 const wxWX2MBbuf textbuf = text.mb_str();
1401 size_t len = strlen(textbuf);
1402 size_t i;
1403 for (i = 0; i < len; i++)
1404 {
1405 int c = (unsigned char) textbuf[i];
1406 if (c == ')' || c == '(' || c == '\\')
1407 {
1408 /* Cope with special characters */
1409 PsPrint( "\\" );
1410 PsPrint( (char) c );
1411 }
1412 else if ( c >= 128 )
1413 {
1414 /* Cope with character codes > 127 */
1415 buffer.Printf( "\\%o", c);
1416 PsPrint( buffer );
1417 }
1418 else
1419 {
1420 PsPrint( (char) c );
1421 }
1422 }
1423
1424 PsPrint( ") show\n" );
1425
1426 buffer.Printf( "%f rotate\n", -angle );
1427 buffer.Replace( ",", "." );
1428 PsPrint( buffer );
1429
1430 if (m_font.GetUnderlined())
1431 {
1432 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1433 wxCoord w, h;
1434 GetTextExtent(text, &w, &h);
1435
1436 buffer.Printf(
1437 "gsave\n"
1438 "%f %f moveto\n"
1439 "%f setlinewidth\n"
1440 "%f %f lineto\n"
1441 "stroke\n"
1442 "grestore\n",
1443 XLOG2DEV(x), YLOG2DEV(uy),
1444 m_underlineThickness,
1445 XLOG2DEV(x + w), YLOG2DEV(uy) );
1446 buffer.Replace( ",", "." );
1447 PsPrint( buffer );
1448 }
1449
1450 CalcBoundingBox( x, y );
1451 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1452 }
1453
1454 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1455 {
1456 m_backgroundBrush = brush;
1457 }
1458
1459 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1460 {
1461 wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1462 }
1463
1464 #if wxUSE_SPLINES
1465 void wxPostScriptDC::DoDrawSpline( wxList *points )
1466 {
1467 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1468
1469 SetPen( m_pen );
1470
1471 // a and b are not used
1472 //double a, b;
1473 double c, d, x1, y1, x2, y2, x3, y3;
1474 wxPoint *p, *q;
1475
1476 wxList::compatibility_iterator node = points->GetFirst();
1477 p = (wxPoint *)node->GetData();
1478 x1 = p->x;
1479 y1 = p->y;
1480
1481 node = node->GetNext();
1482 p = (wxPoint *)node->GetData();
1483 c = p->x;
1484 d = p->y;
1485 x3 =
1486 #if 0
1487 a =
1488 #endif
1489 (double)(x1 + c) / 2;
1490 y3 =
1491 #if 0
1492 b =
1493 #endif
1494 (double)(y1 + d) / 2;
1495
1496 wxString buffer;
1497 buffer.Printf( "newpath\n"
1498 "%f %f moveto\n"
1499 "%f %f lineto\n",
1500 XLOG2DEV(wxRound(x1)), YLOG2DEV(wxRound(y1)),
1501 XLOG2DEV(wxRound(x3)), YLOG2DEV(wxRound(y3)) );
1502 buffer.Replace( ",", "." );
1503 PsPrint( buffer );
1504
1505 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1506 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1507
1508 node = node->GetNext();
1509 while (node)
1510 {
1511 q = (wxPoint *)node->GetData();
1512
1513 x1 = x3;
1514 y1 = y3;
1515 x2 = c;
1516 y2 = d;
1517 c = q->x;
1518 d = q->y;
1519 x3 = (double)(x2 + c) / 2;
1520 y3 = (double)(y2 + d) / 2;
1521
1522 buffer.Printf( "%f %f %f %f %f %f DrawSplineSection\n",
1523 XLOG2DEV(wxRound(x1)), YLOG2DEV(wxRound(y1)),
1524 XLOG2DEV(wxRound(x2)), YLOG2DEV(wxRound(y2)),
1525 XLOG2DEV(wxRound(x3)), YLOG2DEV(wxRound(y3)) );
1526 buffer.Replace( ",", "." );
1527 PsPrint( buffer );
1528
1529 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1530 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1531
1532 node = node->GetNext();
1533 }
1534
1535 /*
1536 At this point, (x2,y2) and (c,d) are the position of the
1537 next-to-last and last point respectively, in the point list
1538 */
1539
1540 buffer.Printf( "%f %f lineto\nstroke\n", XLOG2DEV(wxRound(c)), YLOG2DEV(wxRound(d)) );
1541 buffer.Replace( ",", "." );
1542 PsPrint( buffer );
1543 }
1544 #endif // wxUSE_SPLINES
1545
1546 wxCoord wxPostScriptDC::GetCharWidth() const
1547 {
1548 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1549 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1550 }
1551
1552 void wxPostScriptDC::SetPrintData(const wxPrintData& data)
1553 {
1554 m_printData = data;
1555
1556 wxPaperSize id = m_printData.GetPaperId();
1557 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1558 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1559 int w = 595;
1560 int h = 842;
1561 if (paper)
1562 {
1563 w = paper->GetSizeDeviceUnits().x;
1564 h = paper->GetSizeDeviceUnits().y;
1565 }
1566
1567 if (m_printData.GetOrientation() == wxLANDSCAPE)
1568 m_pageHeight = w * PS2DEV;
1569 else
1570 m_pageHeight = h * PS2DEV;
1571 }
1572
1573 #if wxUSE_NEW_DC
1574 #else
1575 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1576 {
1577 wxDCBase::SetAxisOrientation(xLeftRight,yBottomUp);
1578 }
1579
1580 void wxPostScriptDC::SetMapMode(int mode)
1581 {
1582 wxDCBase::SetMapMode(mode);
1583 }
1584
1585 void wxPostScriptDC::SetUserScale(double x, double y)
1586 {
1587 wxDCBase::SetUserScale(x,y);
1588 }
1589
1590 void wxPostScriptDC::SetLogicalScale(double x, double y)
1591 {
1592 wxDCBase::SetLogicalScale(x,y);
1593 }
1594
1595 void wxPostScriptDC::SetLogicalOrigin(wxCoord x, wxCoord y)
1596 {
1597 wxDCBase::SetLogicalOrigin(x,y);
1598 }
1599
1600 void wxPostScriptDC::SetDeviceOrigin(wxCoord x, wxCoord y)
1601 {
1602 wxDCBase::SetDeviceOrigin(x,y);
1603 }
1604 #endif
1605
1606 void wxPostScriptDC::DoGetSize(int* width, int* height) const
1607 {
1608 wxPaperSize id = m_printData.GetPaperId();
1609
1610 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1611
1612 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1613
1614 int w = 595;
1615 int h = 842;
1616 if (paper)
1617 {
1618 w = paper->GetSizeDeviceUnits().x;
1619 h = paper->GetSizeDeviceUnits().y;
1620 }
1621
1622 if (m_printData.GetOrientation() == wxLANDSCAPE)
1623 {
1624 int tmp = w;
1625 w = h;
1626 h = tmp;
1627 }
1628
1629 if (width)
1630 *width = wxRound( w * PS2DEV );
1631
1632 if (height)
1633 *height = wxRound( h * PS2DEV );
1634 }
1635
1636 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1637 {
1638 wxPaperSize id = m_printData.GetPaperId();
1639
1640 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1641
1642 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1643
1644 int w = 210;
1645 int h = 297;
1646 if (paper)
1647 {
1648 w = paper->GetWidth() / 10;
1649 h = paper->GetHeight() / 10;
1650 }
1651
1652 if (m_printData.GetOrientation() == wxLANDSCAPE)
1653 {
1654 int tmp = w;
1655 w = h;
1656 h = tmp;
1657 }
1658
1659 if (width) *width = w;
1660 if (height) *height = h;
1661 }
1662
1663 // Resolution in pixels per logical inch
1664 wxSize wxPostScriptDC::GetPPI(void) const
1665 {
1666 return wxSize( DPI, DPI );
1667 }
1668
1669
1670 bool wxPostScriptDC::StartDoc( const wxString& message )
1671 {
1672 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1673
1674 if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1675 {
1676 if (m_printData.GetFilename() == wxEmptyString)
1677 {
1678 wxString filename = wxGetTempFileName( wxT("ps") );
1679 m_printData.SetFilename(filename);
1680 }
1681
1682 m_pstream = wxFopen( m_printData.GetFilename(), wxT("w+") );
1683
1684 if (!m_pstream)
1685 {
1686 wxLogError( _("Cannot open file for PostScript printing!"));
1687 m_ok = false;
1688 return false;
1689 }
1690 }
1691
1692 m_ok = true;
1693 m_title = message;
1694
1695 wxString buffer;
1696
1697 PsPrint( "%!PS-Adobe-2.0\n" );
1698
1699 buffer.Printf( "%%%%Title: %s\n", m_title );
1700 PsPrint( buffer );
1701 PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1702
1703 buffer.Printf( "%%%%CreationDate: %s\n", wxNow() );
1704 PsPrint( buffer );
1705
1706 if (m_printData.GetOrientation() == wxLANDSCAPE)
1707 PsPrint( "%%Orientation: Landscape\n" );
1708 else
1709 PsPrint( "%%Orientation: Portrait\n" );
1710
1711 const wxChar *paper;
1712 switch (m_printData.GetPaperId())
1713 {
1714 case wxPAPER_LETTER: paper = wxT("Letter"); break; // Letter: paper ""; 8 1/2 by 11 inches
1715 case wxPAPER_LEGAL: paper = wxT("Legal"); break; // Legal, 8 1/2 by 14 inches
1716 case wxPAPER_A4: paper = wxT("A4"); break; // A4 Sheet, 210 by 297 millimeters
1717 case wxPAPER_TABLOID: paper = wxT("Tabloid"); break; // Tabloid, 11 by 17 inches
1718 case wxPAPER_LEDGER: paper = wxT("Ledger"); break; // Ledger, 17 by 11 inches
1719 case wxPAPER_STATEMENT: paper = wxT("Statement"); break; // Statement, 5 1/2 by 8 1/2 inches
1720 case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break; // Executive, 7 1/4 by 10 1/2 inches
1721 case wxPAPER_A3: paper = wxT("A3"); break; // A3 sheet, 297 by 420 millimeters
1722 case wxPAPER_A5: paper = wxT("A5"); break; // A5 sheet, 148 by 210 millimeters
1723 case wxPAPER_B4: paper = wxT("B4"); break; // B4 sheet, 250 by 354 millimeters
1724 case wxPAPER_B5: paper = wxT("B5"); break; // B5 sheet, 182-by-257-millimeter paper
1725 case wxPAPER_FOLIO: paper = wxT("Folio"); break; // Folio, 8-1/2-by-13-inch paper
1726 case wxPAPER_QUARTO: paper = wxT("Quaro"); break; // Quarto, 215-by-275-millimeter paper
1727 case wxPAPER_10X14: paper = wxT("10x14"); break; // 10-by-14-inch sheet
1728 default: paper = wxT("A4");
1729 }
1730
1731 buffer.Printf( "%%%%DocumentPaperSizes: %s\n", paper );
1732 PsPrint( buffer );
1733
1734 PsPrint( "%%EndComments\n\n" );
1735
1736 PsPrint( "%%BeginProlog\n" );
1737 PsPrint( wxPostScriptHeaderConicTo );
1738 PsPrint( wxPostScriptHeaderEllipse );
1739 PsPrint( wxPostScriptHeaderEllipticArc );
1740 PsPrint( wxPostScriptHeaderColourImage );
1741 PsPrint( wxPostScriptHeaderReencodeISO1 );
1742 PsPrint( wxPostScriptHeaderReencodeISO2 );
1743 if (wxPostScriptHeaderSpline)
1744 PsPrint( wxPostScriptHeaderSpline );
1745 PsPrint( "%%EndProlog\n" );
1746
1747 SetBrush( *wxBLACK_BRUSH );
1748 SetPen( *wxBLACK_PEN );
1749 SetBackground( *wxWHITE_BRUSH );
1750 SetTextForeground( *wxBLACK );
1751
1752 // set origin according to paper size
1753 SetDeviceOrigin( 0,0 );
1754
1755 m_pageNumber = 1;
1756 return true;
1757 }
1758
1759 void wxPostScriptDC::EndDoc ()
1760 {
1761 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1762
1763 if (m_clipping)
1764 {
1765 m_clipping = false;
1766 PsPrint( "grestore\n" );
1767 }
1768
1769 if ( m_pstream ) {
1770 fclose( m_pstream );
1771 m_pstream = (FILE *) NULL;
1772 }
1773
1774 #if 0
1775 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1776 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1777 double wx_printer_scale_x, wx_printer_scale_y;
1778
1779 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1780 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1781
1782 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1783 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1784
1785 // Compute the bounding box. Note that it is in the default user
1786 // coordinate system, thus we have to convert the values.
1787 wxCoord minX = (wxCoord) XLOG2DEV(m_minX);
1788 wxCoord minY = (wxCoord) YLOG2DEV(m_minY);
1789 wxCoord maxX = (wxCoord) XLOG2DEV(m_maxX);
1790 wxCoord maxY = (wxCoord) YLOG2DEV(m_maxY);
1791
1792 // LOG2DEV may have changed the minimum to maximum vice versa
1793 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1794 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1795
1796 // account for used scaling (boundingbox is before scaling in ps-file)
1797 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1798 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1799
1800 wxCoord llx, lly, urx, ury;
1801 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1802 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1803 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1804 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1805 // (end of bounding box computation)
1806
1807
1808 // If we're landscape, our sense of "x" and "y" is reversed.
1809 if (m_printData.GetOrientation() == wxLANDSCAPE)
1810 {
1811 wxCoord tmp;
1812 tmp = llx; llx = lly; lly = tmp;
1813 tmp = urx; urx = ury; ury = tmp;
1814
1815 // We need either the two lines that follow, or we need to subtract
1816 // min_x from real_translate_y, which is commented out below.
1817 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1818 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1819 }
1820
1821 // The Adobe specifications call for integers; we round as to make
1822 // the bounding larger.
1823 PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1824 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1825 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1826
1827 // To check the correctness of the bounding box, postscript commands
1828 // to draw a box corresponding to the bounding box are generated below.
1829 // But since we typically don't want to print such a box, the postscript
1830 // commands are generated within comments. These lines appear before any
1831 // adjustment of scale, rotation, or translation, and hence are in the
1832 // default user coordinates.
1833 PsPrint( "% newpath\n" );
1834 PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1835 PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1836 PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1837 PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1838 #endif
1839
1840 #ifndef __WXMSW__
1841 wxPostScriptPrintNativeData *data =
1842 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1843
1844 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1845 {
1846 wxString command;
1847 command += data->GetPrinterCommand();
1848 command += wxT(" ");
1849 command += data->GetPrinterOptions();
1850 command += wxT(" ");
1851 command += m_printData.GetFilename();
1852
1853 wxExecute( command, true );
1854 wxRemoveFile( m_printData.GetFilename() );
1855 }
1856 #endif
1857 }
1858
1859 void wxPostScriptDC::StartPage()
1860 {
1861 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1862
1863 wxString buffer;
1864 buffer.Printf( wxT("%%%%Page: %d\n"), m_pageNumber++ );
1865 PsPrint( buffer );
1866
1867 #if 0
1868 wxPostScriptPrintNativeData *data =
1869 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1870
1871 wxCoord translate_x = (wxCoord)data->GetPrinterTranslateX();
1872 wxCoord translate_y = (wxCoord)data->GetPrinterTranslateY();
1873
1874 buffer.Printf( "%d %d translate\n", translate_x, translate_y );
1875 PsPrint( buffer );
1876
1877 double scale_x = data->GetPrinterScaleX();
1878 double scale_y = data->GetPrinterScaleY();
1879
1880 buffer.Printf( "%f %f scale\n", scale_x, scale_y );
1881 buffer.Replace( ",", "." );
1882 PsPrint( buffer );
1883
1884 #endif
1885
1886 // Each page starts with an "initgraphics" which resets the
1887 // transformation and so we need to rotate the page for
1888 // landscape printing)
1889
1890 // I copied this one from a PostScript tutorial, but to no avail. RR.
1891 // PsPrint( "90 rotate llx neg ury nef translate\n" );
1892
1893 if (m_printData.GetOrientation() == wxLANDSCAPE)
1894 PsPrint( "90 rotate\n" );
1895 }
1896
1897 void wxPostScriptDC::EndPage ()
1898 {
1899 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1900
1901 PsPrint( "showpage\n" );
1902 }
1903
1904 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
1905 wxCoord fwidth, wxCoord fheight,
1906 wxDC *source,
1907 wxCoord xsrc, wxCoord ysrc,
1908 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1909 {
1910 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1911
1912 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1913
1914 /* blit into a bitmap */
1915 wxBitmap bitmap( (int)fwidth, (int)fheight );
1916 wxMemoryDC memDC;
1917 memDC.SelectObject(bitmap);
1918 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1919 memDC.SelectObject(wxNullBitmap);
1920
1921 /* draw bitmap. scaling and positioning is done there */
1922 DrawBitmap( bitmap, xdest, ydest );
1923
1924 return true;
1925 }
1926
1927 wxCoord wxPostScriptDC::GetCharHeight() const
1928 {
1929 if (m_font.Ok())
1930 return m_font.GetPointSize();
1931 else
1932 return 12;
1933 }
1934
1935 void wxPostScriptDC::PsPrint( const wxString& str )
1936 {
1937 const wxCharBuffer psdata(str.utf8_str());
1938
1939 wxPostScriptPrintNativeData *data =
1940 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1941
1942 switch (m_printData.GetPrintMode())
1943 {
1944 #if wxUSE_STREAMS
1945 // append to output stream
1946 case wxPRINT_MODE_STREAM:
1947 {
1948 wxOutputStream* outputstream = data->GetOutputStream();
1949 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
1950 outputstream->Write( psdata, strlen( psdata ) );
1951 }
1952 break;
1953 #endif // wxUSE_STREAMS
1954
1955 // save data into file
1956 default:
1957 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
1958 fwrite( psdata, 1, strlen( psdata ), m_pstream );
1959 }
1960 }
1961
1962 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
1963 wxCoord *x, wxCoord *y,
1964 wxCoord *descent, wxCoord *externalLeading,
1965 const wxFont *theFont ) const
1966 {
1967 const wxFont *fontToUse = theFont;
1968
1969 if (!fontToUse) fontToUse = &m_font;
1970
1971 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
1972
1973 if (string.empty())
1974 {
1975 if (x) (*x) = 0;
1976 if (y) (*y) = 0;
1977 if (descent) (*descent) = 0;
1978 if (externalLeading) (*externalLeading) = 0;
1979 return;
1980 }
1981
1982 // GTK 2.0
1983
1984 const wxWX2MBbuf strbuf = string.mb_str();
1985
1986 // conversion failed (non e.g. ISO characters)
1987 if (strbuf.data() == NULL)
1988 return;
1989
1990 #if !wxUSE_AFM_FOR_POSTSCRIPT
1991 /* Provide a VERY rough estimate (avoid using it).
1992 * Produces accurate results for mono-spaced font
1993 * such as Courier (aka wxMODERN) */
1994
1995 int height = 12;
1996 if (fontToUse)
1997 {
1998 height = fontToUse->GetPointSize();
1999 }
2000 if ( x )
2001 *x = strlen (strbuf) * height * 72 / 120;
2002 if ( y )
2003 *y = (wxCoord) (height * 1.32); /* allow for descender */
2004 if (descent) *descent = 0;
2005 if (externalLeading) *externalLeading = 0;
2006 #else
2007
2008 /* method for calculating string widths in postscript:
2009 / read in the AFM (adobe font metrics) file for the
2010 / actual font, parse it and extract the character widths
2011 / and also the descender. this may be improved, but for now
2012 / it works well. the AFM file is only read in if the
2013 / font is changed. this may be chached in the future.
2014 / calls to GetTextExtent with the font unchanged are rather
2015 / efficient!!!
2016 /
2017 / for each font and style used there is an AFM file necessary.
2018 / currently i have only files for the roman font family.
2019 / I try to get files for the other ones!
2020 /
2021 / CAVE: the size of the string is currently always calculated
2022 / in 'points' (1/72 of an inch). this should later on be
2023 / changed to depend on the mapping mode.
2024 / CAVE: the path to the AFM files must be set before calling this
2025 / fun3B3Bction. this is usually done by a call like the following:
2026 / wxSetAFMPath("d:\\wxw161\\afm\\");
2027 /
2028 / example:
2029 /
2030 / wxPostScriptDC dc(NULL, true);
2031 / if (dc.Ok()){
2032 / wxSetAFMPath("d:\\wxw161\\afm\\");
2033 / dc.StartDoc("Test");
2034 / dc.StartPage();
2035 / wxCoord w,h;
2036 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
2037 / dc.GetTextExtent("Hallo",&w,&h);
2038 / dc.EndPage();
2039 / dc.EndDoc();
2040 / }
2041 /
2042 / by steve (stefan.hammes@urz.uni-heidelberg.de)
2043 / created: 10.09.94
2044 / updated: 14.05.95 */
2045
2046 /* these static vars are for storing the state between calls */
2047 static int lastFamily= INT_MIN;
2048 static int lastSize= INT_MIN;
2049 static int lastStyle= INT_MIN;
2050 static int lastWeight= INT_MIN;
2051 static int lastDescender = INT_MIN;
2052 static int lastWidths[256]; /* widths of the characters */
2053
2054 double UnderlinePosition = 0.0;
2055 double UnderlineThickness = 0.0;
2056
2057 // Get actual parameters
2058 int Family = fontToUse->GetFamily();
2059 int Size = fontToUse->GetPointSize();
2060 int Style = fontToUse->GetStyle();
2061 int Weight = fontToUse->GetWeight();
2062
2063 // If we have another font, read the font-metrics
2064 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
2065 {
2066 // Store actual values
2067 lastFamily = Family;
2068 lastSize = Size;
2069 lastStyle = Style;
2070 lastWeight = Weight;
2071
2072 const wxChar *name;
2073
2074 switch (Family)
2075 {
2076 case wxMODERN:
2077 case wxTELETYPE:
2078 {
2079 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
2080 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
2081 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
2082 else name = wxT("Cour.afm");
2083 break;
2084 }
2085 case wxROMAN:
2086 {
2087 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
2088 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
2089 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
2090 else name = wxT("TimesRo.afm");
2091 break;
2092 }
2093 case wxSCRIPT:
2094 {
2095 name = wxT("Zapf.afm");
2096 break;
2097 }
2098 case wxSWISS:
2099 default:
2100 {
2101 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
2102 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
2103 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
2104 else name = wxT("Helv.afm");
2105 break;
2106 }
2107 }
2108
2109 FILE *afmFile = NULL;
2110
2111 // Get the directory of the AFM files
2112 wxString afmName;
2113
2114 // VZ: I don't know if the cast always works under Unix but it clearly
2115 // never does under Windows where the pointer is
2116 // wxWindowsPrintNativeData and so calling GetFontMetricPath() on
2117 // it just crashes
2118 #ifndef __WIN32__
2119 wxPostScriptPrintNativeData *data =
2120 wxDynamicCast(m_printData.GetNativeData(), wxPostScriptPrintNativeData);
2121
2122 if (data && !data->GetFontMetricPath().empty())
2123 {
2124 afmName = data->GetFontMetricPath();
2125 afmName << wxFILE_SEP_PATH << name;
2126 }
2127 #endif // __WIN32__
2128
2129 if ( !afmName.empty() )
2130 afmFile = wxFopen(afmName, wxT("r"));
2131
2132 if ( !afmFile )
2133 {
2134 #if defined(__UNIX__) && !defined(__VMS__)
2135 afmName = wxGetDataDir();
2136 #else // !__UNIX__
2137 afmName = wxStandardPaths::Get().GetDataDir();
2138 #endif // __UNIX__/!__UNIX__
2139
2140 afmName << wxFILE_SEP_PATH
2141 #if defined(__LINUX__) || defined(__FREEBSD__)
2142 << wxT("gs_afm") << wxFILE_SEP_PATH
2143 #else
2144 << wxT("afm") << wxFILE_SEP_PATH
2145 #endif
2146 << name;
2147 afmFile = wxFopen(afmName,wxT("r"));
2148 }
2149
2150 /* 2. open and process the file
2151 / a short explanation of the AFM format:
2152 / we have for each character a line, which gives its size
2153 / e.g.:
2154 /
2155 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2156 /
2157 / that means, we have a character with ascii code 63, and width
2158 / (444/1000 * fontSize) points.
2159 / the other data is ignored for now!
2160 /
2161 / when the font has changed, we read in the right AFM file and store the
2162 / character widths in an array, which is processed below (see point 3.). */
2163 if (afmFile==NULL)
2164 {
2165 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2166 wxLogDebug( wxT(" using approximate values"));
2167 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2168 lastDescender = -150; /* dito. */
2169 }
2170 else
2171 {
2172 /* init the widths array */
2173 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2174 /* some variables for holding parts of a line */
2175 char cString[10], semiString[10], WXString[10];
2176 char descString[20];
2177 char upString[30], utString[30];
2178 char encString[50];
2179 char line[256];
2180 int ascii,cWidth;
2181 /* read in the file and parse it */
2182 while(fgets(line,sizeof(line),afmFile)!=NULL)
2183 {
2184 /* A.) check for descender definition */
2185 if (strncmp(line,"Descender",9)==0)
2186 {
2187 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2188 (strcmp(descString,"Descender")!=0))
2189 {
2190 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2191 }
2192 }
2193 /* JC 1.) check for UnderlinePosition */
2194 else if(strncmp(line,"UnderlinePosition",17)==0)
2195 {
2196 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2197 (strcmp(upString,"UnderlinePosition")!=0))
2198 {
2199 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2200 }
2201 }
2202 /* JC 2.) check for UnderlineThickness */
2203 else if(strncmp(line,"UnderlineThickness",18)==0)
2204 {
2205 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2206 (strcmp(utString,"UnderlineThickness")!=0))
2207 {
2208 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2209 }
2210 }
2211 /* JC 3.) check for EncodingScheme */
2212 else if(strncmp(line,"EncodingScheme",14)==0)
2213 {
2214 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2215 (strcmp(utString,"EncodingScheme")!=0))
2216 {
2217 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2218 }
2219 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2220 {
2221 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2222 afmName.c_str(),line, encString);
2223 }
2224 }
2225 /* B.) check for char-width */
2226 else if(strncmp(line,"C ",2)==0)
2227 {
2228 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2229 {
2230 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2231 }
2232 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2233 {
2234 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2235 }
2236 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2237 if (ascii>=0 && ascii<256)
2238 {
2239 lastWidths[ascii] = cWidth; /* store width */
2240 }
2241 else
2242 {
2243 /* MATTHEW: this happens a lot; don't print an error */
2244 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2245 }
2246 }
2247 /* C.) ignore other entries. */
2248 }
2249 fclose(afmFile);
2250 }
2251 /* hack to compute correct values for german 'Umlaute'
2252 / the correct way would be to map the character names
2253 / like 'adieresis' to corresp. positions of ISOEnc and read
2254 / these values from AFM files, too. Maybe later ... */
2255
2256 // NB: casts to int are needed to suppress gcc 3.3 warnings
2257 lastWidths[196] = lastWidths[(int)'A']; // Ä
2258 lastWidths[228] = lastWidths[(int)'a']; // ä
2259 lastWidths[214] = lastWidths[(int)'O']; // Ö
2260 lastWidths[246] = lastWidths[(int)'o']; // ö
2261 lastWidths[220] = lastWidths[(int)'U']; // Ü
2262 lastWidths[252] = lastWidths[(int)'u']; // ü
2263 lastWidths[223] = lastWidths[(int)251]; // ß
2264
2265 /* JC: calculate UnderlineThickness/UnderlinePosition */
2266
2267 // VS: dirty, but is there any better solution?
2268 double *pt;
2269 pt = (double*) &m_underlinePosition;
2270 *pt = YLOG2DEVREL((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2271 pt = (double*) &m_underlineThickness;
2272 *pt = YLOG2DEVREL((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2273
2274 }
2275
2276
2277 /* 3. now the font metrics are read in, calc size this
2278 / is done by adding the widths of the characters in the
2279 / string. they are given in 1/1000 of the size! */
2280
2281 long sum=0;
2282 wxCoord height=Size; /* by default */
2283 unsigned char *p;
2284 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2285 {
2286 if(lastWidths[*p]== INT_MIN)
2287 {
2288 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2289 sum += lastWidths[(unsigned char)' ']; /* assume space */
2290 }
2291 else
2292 {
2293 sum += lastWidths[*p];
2294 }
2295 }
2296
2297 double widthSum = sum;
2298 widthSum *= Size;
2299 widthSum /= 1000.0F;
2300
2301 /* add descender to height (it is usually a negative value) */
2302 //if (lastDescender != INT_MIN)
2303 //{
2304 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2305 //}
2306 // - commented by V. Slavik - height already contains descender in it
2307 // (judging from few experiments)
2308
2309 /* return size values */
2310 if ( x )
2311 *x = (wxCoord)widthSum;
2312 if ( y )
2313 *y = height;
2314
2315 /* return other parameters */
2316 if (descent)
2317 {
2318 if(lastDescender!=INT_MIN)
2319 {
2320 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2321 }
2322 else
2323 {
2324 *descent = 0;
2325 }
2326 }
2327
2328 /* currently no idea how to calculate this! */
2329 if (externalLeading) *externalLeading = 0;
2330 #endif
2331 // Use AFM
2332 }
2333
2334
2335 #endif // wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT
2336
2337 // vi:sts=4:sw=4:et
wxWidgets (Impactor)