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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 #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
239 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
240
241 wxPostScriptDC::wxPostScriptDC()
242 : wxDC(new wxPostScriptDCImpl(this))
243 {
244 }
245
246 wxPostScriptDC::wxPostScriptDC(const wxPrintData& printData)
247 : wxDC(new wxPostScriptDCImpl(this, printData))
248 {
249 }
250
251 // conversion
252 static const double RAD2DEG = 180.0 / M_PI;
253
254 // we don't want to use only 72 dpi from PS print
255 static const int DPI = 600;
256 static const double PS2DEV = 600.0 / 72.0;
257 static const double DEV2PS = 72.0 / 600.0;
258
259 #define XLOG2DEV(x) ((double)(LogicalToDeviceX(x)) * DEV2PS)
260 #define XLOG2DEVREL(x) ((double)(LogicalToDeviceXRel(x)) * DEV2PS)
261 #define YLOG2DEV(x) ((m_pageHeight - (double)LogicalToDeviceY(x)) * DEV2PS)
262 #define YLOG2DEVREL(x) ((double)(LogicalToDeviceYRel(x)) * DEV2PS)
263
264
265 IMPLEMENT_ABSTRACT_CLASS(wxPostScriptDCImpl, wxDCImpl)
266
267 //-------------------------------------------------------------------------------
268
269 wxPostScriptDCImpl::wxPostScriptDCImpl( wxPostScriptDC *owner ) :
270 wxDCImpl( owner )
271 {
272 Init();
273
274 m_pageHeight = 842 * PS2DEV;
275
276 m_ok = true;
277 }
278
279 wxPostScriptDCImpl::wxPostScriptDCImpl( wxPostScriptDC *owner, const wxPrintData& data ) :
280 wxDCImpl( owner )
281 {
282 Init();
283
284 // this calculates m_pageHeight required for
285 // taking the inverted Y axis into account
286 SetPrintData( data );
287
288 m_ok = true;
289 }
290
291
292 wxPostScriptDCImpl::wxPostScriptDCImpl( wxPrinterDC *owner ) :
293 wxDCImpl( owner )
294 {
295 Init();
296
297 m_pageHeight = 842 * PS2DEV;
298
299 m_ok = true;
300 }
301
302 wxPostScriptDCImpl::wxPostScriptDCImpl( wxPrinterDC *owner, const wxPrintData& data ) :
303 wxDCImpl( owner )
304 {
305 Init();
306
307 // this calculates m_pageHeight required for
308 // taking the inverted Y axis into account
309 SetPrintData( data );
310
311 m_ok = true;
312 }
313
314 void wxPostScriptDCImpl::Init()
315 {
316 m_pstream = (FILE*) NULL;
317
318 m_currentRed = 0;
319 m_currentGreen = 0;
320 m_currentBlue = 0;
321
322 m_pageNumber = 0;
323
324 m_clipping = false;
325
326 m_underlinePosition = 0.0;
327 m_underlineThickness = 0.0;
328
329 }
330
331 wxPostScriptDCImpl::~wxPostScriptDCImpl ()
332 {
333 if (m_pstream)
334 {
335 fclose( m_pstream );
336 m_pstream = (FILE*) NULL;
337 }
338 }
339
340 bool wxPostScriptDCImpl::IsOk() const
341 {
342 return m_ok;
343 }
344
345 wxRect wxPostScriptDCImpl::GetPaperRect()
346 {
347 int w = 0;
348 int h = 0;
349 DoGetSize( &w, &h );
350 return wxRect(0,0,w,h);
351 }
352
353 int wxPostScriptDCImpl::GetResolution()
354 {
355 return DPI;
356 }
357
358 void wxPostScriptDCImpl::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
359 {
360 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
361
362 if (m_clipping)
363 DestroyClippingRegion();
364
365 m_clipX1 = x;
366 m_clipY1 = y;
367 m_clipX2 = x + w;
368 m_clipY2 = y + h;
369
370 m_clipping = true;
371
372 wxString buffer;
373 buffer.Printf( "gsave\n"
374 "newpath\n"
375 "%f %f moveto\n"
376 "%f %f lineto\n"
377 "%f %f lineto\n"
378 "%f %f lineto\n"
379 "closepath clip newpath\n",
380 XLOG2DEV(x), YLOG2DEV(y),
381 XLOG2DEV(x+w), YLOG2DEV(y),
382 XLOG2DEV(x+w), YLOG2DEV(y+h),
383 XLOG2DEV(x), YLOG2DEV(y+h) );
384 buffer.Replace( ",", "." );
385 PsPrint( buffer );
386 }
387
388
389 void wxPostScriptDCImpl::DestroyClippingRegion()
390 {
391 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
392
393 if (m_clipping)
394 {
395 m_clipping = false;
396 PsPrint( "grestore\n" );
397 }
398
399 wxDCImpl::DestroyClippingRegion();
400 }
401
402 void wxPostScriptDCImpl::Clear()
403 {
404 // This should fail silently to avoid unnecessary
405 // asserts
406 // wxFAIL_MSG( wxT("wxPostScriptDCImpl::Clear not implemented.") );
407 }
408
409 bool wxPostScriptDCImpl::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
410 {
411 wxFAIL_MSG( wxT("wxPostScriptDCImpl::FloodFill not implemented.") );
412 return false;
413 }
414
415 bool wxPostScriptDCImpl::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
416 {
417 wxFAIL_MSG( wxT("wxPostScriptDCImpl::GetPixel not implemented.") );
418 return false;
419 }
420
421 void wxPostScriptDCImpl::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
422 {
423 wxFAIL_MSG( wxT("wxPostScriptDCImpl::CrossHair not implemented.") );
424 }
425
426 void wxPostScriptDCImpl::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
427 {
428 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
429
430 if (m_pen.GetStyle() == wxTRANSPARENT) return;
431
432 SetPen( m_pen );
433
434 wxString buffer;
435 buffer.Printf( "newpath\n"
436 "%f %f moveto\n"
437 "%f %f lineto\n"
438 "stroke\n",
439 XLOG2DEV(x1), YLOG2DEV(y1),
440 XLOG2DEV(x2), YLOG2DEV(y2) );
441 buffer.Replace( ",", "." );
442 PsPrint( buffer );
443
444 CalcBoundingBox( x1, y1 );
445 CalcBoundingBox( x2, y2 );
446 }
447
448 void wxPostScriptDCImpl::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
449 {
450 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
451
452 wxCoord dx = x1 - xc;
453 wxCoord dy = y1 - yc;
454 double radius = sqrt( (double)(dx*dx+dy*dy) );
455 double alpha1, alpha2;
456
457 if (x1 == x2 && y1 == y2)
458 {
459 alpha1 = 0.0;
460 alpha2 = 360.0;
461 }
462 else if ( wxIsNullDouble(radius) )
463 {
464 alpha1 =
465 alpha2 = 0.0;
466 }
467 else
468 {
469 alpha1 = (x1 - xc == 0) ?
470 (y1 - yc < 0) ? 90.0 : -90.0 :
471 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
472 alpha2 = (x2 - xc == 0) ?
473 (y2 - yc < 0) ? 90.0 : -90.0 :
474 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
475 }
476 while (alpha1 <= 0) alpha1 += 360;
477 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
478 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
479 while (alpha2 > 360) alpha2 -= 360;
480
481 int i_radius = wxRound( radius );
482
483 if (m_brush.GetStyle() != wxTRANSPARENT)
484 {
485 SetBrush( m_brush );
486
487 wxString buffer;
488 buffer.Printf( "newpath\n"
489 "%f %f %f %f %f %f ellipse\n"
490 "%f %f lineto\n"
491 "closepath\n"
492 "fill\n",
493 XLOG2DEV(xc), YLOG2DEV(yc),
494 XLOG2DEVREL(i_radius), YLOG2DEVREL(i_radius),
495 alpha1, alpha2,
496 XLOG2DEV(xc), YLOG2DEV(yc) );
497 buffer.Replace( ",", "." );
498 PsPrint( buffer );
499
500 CalcBoundingBox( xc-i_radius, yc-i_radius );
501 CalcBoundingBox( xc+i_radius, yc+i_radius );
502 }
503
504 if (m_pen.GetStyle() != wxTRANSPARENT)
505 {
506 SetPen( m_pen );
507
508 wxString buffer;
509 buffer.Printf( "newpath\n"
510 "%f %f %f %f %f %f ellipse\n"
511 "%f %f lineto\n"
512 "closepath\n"
513 "stroke\n",
514 XLOG2DEV(xc), YLOG2DEV(yc),
515 XLOG2DEVREL(i_radius), YLOG2DEVREL(i_radius),
516 alpha1, alpha2,
517 XLOG2DEV(xc), YLOG2DEV(yc) );
518 buffer.Replace( ",", "." );
519 PsPrint( buffer );
520
521 CalcBoundingBox( xc-i_radius, yc-i_radius );
522 CalcBoundingBox( xc+i_radius, yc+i_radius );
523 }
524 }
525
526 void wxPostScriptDCImpl::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
527 {
528 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
529
530 if ( sa >= 360 || sa <= -360 )
531 sa -= int(sa/360)*360;
532 if ( ea >= 360 || ea <=- 360 )
533 ea -= int(ea/360)*360;
534 if ( sa < 0 )
535 sa += 360;
536 if ( ea < 0 )
537 ea += 360;
538
539 if ( wxIsSameDouble(sa, ea) )
540 {
541 DoDrawEllipse(x,y,w,h);
542 return;
543 }
544
545 if (m_brush.GetStyle () != wxTRANSPARENT)
546 {
547 SetBrush( m_brush );
548
549 wxString buffer;
550 buffer.Printf( "newpath\n"
551 "%f %f %f %f %f %f true ellipticarc\n",
552 XLOG2DEV(x+w/2), YLOG2DEV(y+h/2),
553 XLOG2DEVREL(w/2), YLOG2DEVREL(h/2),
554 sa, ea );
555 buffer.Replace( ",", "." );
556 PsPrint( buffer );
557
558 CalcBoundingBox( x ,y );
559 CalcBoundingBox( x+w, y+h );
560 }
561
562 if (m_pen.GetStyle () != wxTRANSPARENT)
563 {
564 SetPen( m_pen );
565
566 wxString buffer;
567 buffer.Printf( "newpath\n"
568 "%f %f %f %f %f %f false ellipticarc\n",
569 XLOG2DEV(x+w/2), YLOG2DEV(y+h/2),
570 XLOG2DEVREL(w/2), YLOG2DEVREL(h/2),
571 sa, ea );
572 buffer.Replace( ",", "." );
573 PsPrint( buffer );
574
575 CalcBoundingBox( x ,y );
576 CalcBoundingBox( x+w, y+h );
577 }
578 }
579
580 void wxPostScriptDCImpl::DoDrawPoint (wxCoord x, wxCoord y)
581 {
582 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
583
584 if (m_pen.GetStyle() == wxTRANSPARENT) return;
585
586 SetPen (m_pen);
587
588 wxString buffer;
589 buffer.Printf( "newpath\n"
590 "%f %f moveto\n"
591 "%f %f lineto\n"
592 "stroke\n",
593 XLOG2DEV(x), YLOG2DEV(y),
594 XLOG2DEV(x+1), YLOG2DEV(y) );
595 buffer.Replace( ",", "." );
596 PsPrint( buffer );
597
598 CalcBoundingBox( x, y );
599 }
600
601 void wxPostScriptDCImpl::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
602 {
603 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
604
605 if (n <= 0) return;
606
607 if (m_brush.GetStyle () != wxTRANSPARENT)
608 {
609 SetBrush( m_brush );
610
611 PsPrint( "newpath\n" );
612
613 double xx = XLOG2DEV(points[0].x + xoffset);
614 double yy = YLOG2DEV(points[0].y + yoffset);
615
616 wxString buffer;
617 buffer.Printf( "%f %f moveto\n", xx, yy );
618 buffer.Replace( ",", "." );
619 PsPrint( buffer );
620
621 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
622
623 for (int i = 1; i < n; i++)
624 {
625 xx = XLOG2DEV(points[i].x + xoffset);
626 yy = YLOG2DEV(points[i].y + yoffset);
627
628 buffer.Printf( "%f %f lineto\n", xx, yy );
629 buffer.Replace( ",", "." );
630 PsPrint( buffer );
631
632 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
633 }
634
635 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
636 }
637
638 if (m_pen.GetStyle () != wxTRANSPARENT)
639 {
640 SetPen( m_pen );
641
642 PsPrint( "newpath\n" );
643
644 double xx = XLOG2DEV(points[0].x + xoffset);
645 double yy = YLOG2DEV(points[0].y + yoffset);
646
647 wxString buffer;
648 buffer.Printf( "%f %f moveto\n", xx, yy );
649 buffer.Replace( ",", "." );
650 PsPrint( buffer );
651
652 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
653
654 for (int i = 1; i < n; i++)
655 {
656 xx = XLOG2DEV(points[i].x + xoffset);
657 yy = YLOG2DEV(points[i].y + yoffset);
658
659 buffer.Printf( "%f %f lineto\n", xx, yy );
660 buffer.Replace( ",", "." );
661 PsPrint( buffer );
662
663 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
664 }
665
666 PsPrint( "closepath\n" );
667 PsPrint( "stroke\n" );
668 }
669 }
670
671 void wxPostScriptDCImpl::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
672 {
673 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
674
675 if (n <= 0) return;
676
677 if (m_brush.GetStyle () != wxTRANSPARENT)
678 {
679 SetBrush( m_brush );
680
681 PsPrint( "newpath\n" );
682
683 int ofs = 0;
684 for (int i = 0; i < n; ofs += count[i++])
685 {
686 double xx = XLOG2DEV(points[ofs].x + xoffset);
687 double yy = YLOG2DEV(points[ofs].y + yoffset);
688
689 wxString buffer;
690 buffer.Printf( "%f %f moveto\n", xx, yy );
691 buffer.Replace( ",", "." );
692 PsPrint( buffer );
693
694 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
695
696 for (int j = 1; j < count[i]; j++)
697 {
698 xx = XLOG2DEV(points[ofs+j].x + xoffset);
699 yy = YLOG2DEV(points[ofs+j].y + yoffset);
700
701 buffer.Printf( "%f %f lineto\n", xx, yy );
702 buffer.Replace( ",", "." );
703 PsPrint( buffer );
704
705 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
706 }
707 }
708 PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
709 }
710
711 if (m_pen.GetStyle () != wxTRANSPARENT)
712 {
713 SetPen( m_pen );
714
715 PsPrint( "newpath\n" );
716
717 int ofs = 0;
718 for (int i = 0; i < n; ofs += count[i++])
719 {
720 double xx = XLOG2DEV(points[ofs].x + xoffset);
721 double yy = YLOG2DEV(points[ofs].y + yoffset);
722
723 wxString buffer;
724 buffer.Printf( "%f %f moveto\n", xx, yy );
725 buffer.Replace( ",", "." );
726 PsPrint( buffer );
727
728 CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
729
730 for (int j = 1; j < count[i]; j++)
731 {
732 xx = XLOG2DEV(points[ofs+j].x + xoffset);
733 yy = YLOG2DEV(points[ofs+j].y + yoffset);
734
735 buffer.Printf( "%f %f lineto\n", xx, yy );
736 buffer.Replace( ",", "." );
737 PsPrint( buffer );
738
739 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
740 }
741 }
742 PsPrint( "closepath\n" );
743 PsPrint( "stroke\n" );
744 }
745 }
746
747 void wxPostScriptDCImpl::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
748 {
749 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
750
751 if (m_pen.GetStyle() == wxTRANSPARENT) return;
752
753 if (n <= 0) return;
754
755 SetPen (m_pen);
756
757 int i;
758 for ( i =0; i<n ; i++ )
759 CalcBoundingBox( points[i].x+xoffset, points[i].y+yoffset );
760
761 wxString buffer;
762 buffer.Printf( "newpath\n"
763 "%f %f moveto\n",
764 XLOG2DEV(points[0].x+xoffset),
765 YLOG2DEV(points[0].y+yoffset) );
766 buffer.Replace( ",", "." );
767 PsPrint( buffer );
768
769 for (i = 1; i < n; i++)
770 {
771 buffer.Printf( "%f %f lineto\n",
772 XLOG2DEV(points[i].x+xoffset),
773 YLOG2DEV(points[i].y+yoffset) );
774 buffer.Replace( ",", "." );
775 PsPrint( buffer );
776 }
777
778 PsPrint( "stroke\n" );
779 }
780
781 void wxPostScriptDCImpl::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
782 {
783 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
784
785 width--;
786 height--;
787
788 if (m_brush.GetStyle () != wxTRANSPARENT)
789 {
790 SetBrush( m_brush );
791
792 wxString buffer;
793 buffer.Printf( "newpath\n"
794 "%f %f moveto\n"
795 "%f %f lineto\n"
796 "%f %f lineto\n"
797 "%f %f lineto\n"
798 "closepath\n"
799 "fill\n",
800 XLOG2DEV(x), YLOG2DEV(y),
801 XLOG2DEV(x + width), YLOG2DEV(y),
802 XLOG2DEV(x + width), YLOG2DEV(y + height),
803 XLOG2DEV(x), YLOG2DEV(y + height) );
804 buffer.Replace( ",", "." );
805 PsPrint( buffer );
806
807 CalcBoundingBox( x, y );
808 CalcBoundingBox( x + width, y + height );
809 }
810
811 if (m_pen.GetStyle () != wxTRANSPARENT)
812 {
813 SetPen (m_pen);
814
815 wxString buffer;
816 buffer.Printf( "newpath\n"
817 "%f %f moveto\n"
818 "%f %f lineto\n"
819 "%f %f lineto\n"
820 "%f %f lineto\n"
821 "closepath\n"
822 "stroke\n",
823 XLOG2DEV(x), YLOG2DEV(y),
824 XLOG2DEV(x + width), YLOG2DEV(y),
825 XLOG2DEV(x + width), YLOG2DEV(y + height),
826 XLOG2DEV(x), YLOG2DEV(y + height) );
827 buffer.Replace( ",", "." );
828 PsPrint( buffer );
829
830 CalcBoundingBox( x, y );
831 CalcBoundingBox( x + width, y + height );
832 }
833 }
834
835 void wxPostScriptDCImpl::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
836 {
837 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
838
839 width--;
840 height--;
841
842 if (radius < 0.0)
843 {
844 // Now, a negative radius is interpreted to mean
845 // 'the proportion of the smallest X or Y dimension'
846 double smallest = width < height ? width : height;
847 radius = (-radius * smallest);
848 }
849
850 wxCoord rad = (wxCoord) radius;
851
852 if (m_brush.GetStyle () != wxTRANSPARENT)
853 {
854 SetBrush( m_brush );
855
856 /* Draw rectangle anticlockwise */
857 wxString buffer;
858 buffer.Printf( "newpath\n"
859 "%f %f %f 90 180 arc\n"
860 "%f %f lineto\n"
861 "%f %f %f 180 270 arc\n"
862 "%f %f lineto\n"
863 "%f %f %f 270 0 arc\n"
864 "%f %f lineto\n"
865 "%f %f %f 0 90 arc\n"
866 "%f %f lineto\n"
867 "closepath\n"
868 "fill\n",
869 XLOG2DEV(x + rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
870 XLOG2DEV(x), YLOG2DEV(y + height - rad),
871 XLOG2DEV(x + rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
872 XLOG2DEV(x + width - rad), YLOG2DEV(y + height),
873 XLOG2DEV(x + width - rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
874 XLOG2DEV(x + width), YLOG2DEV(y + rad),
875 XLOG2DEV(x + width - rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
876 XLOG2DEV(x + rad), YLOG2DEV(y) );
877 buffer.Replace( ",", "." );
878 PsPrint( buffer );
879
880 CalcBoundingBox( x, y );
881 CalcBoundingBox( x + width, y + height );
882 }
883
884 if (m_pen.GetStyle () != wxTRANSPARENT)
885 {
886 SetPen (m_pen);
887
888 /* Draw rectangle anticlockwise */
889 wxString buffer;
890 buffer.Printf( "newpath\n"
891 "%f %f %f 90 180 arc\n"
892 "%f %f lineto\n"
893 "%f %f %f 180 270 arc\n"
894 "%f %f lineto\n"
895 "%f %f %f 270 0 arc\n"
896 "%f %f lineto\n"
897 "%f %f %f 0 90 arc\n"
898 "%f %f lineto\n"
899 "closepath\n"
900 "stroke\n",
901 XLOG2DEV(x + rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
902 XLOG2DEV(x), YLOG2DEV(y + height - rad),
903 XLOG2DEV(x + rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
904 XLOG2DEV(x + width - rad), YLOG2DEV(y + height),
905 XLOG2DEV(x + width - rad), YLOG2DEV(y + height - rad), XLOG2DEVREL(rad),
906 XLOG2DEV(x + width), YLOG2DEV(y + rad),
907 XLOG2DEV(x + width - rad), YLOG2DEV(y + rad), XLOG2DEVREL(rad),
908 XLOG2DEV(x + rad), YLOG2DEV(y) );
909 buffer.Replace( ",", "." );
910 PsPrint( buffer );
911
912 CalcBoundingBox( x, y );
913 CalcBoundingBox( x + width, y + height );
914 }
915 }
916
917 void wxPostScriptDCImpl::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
918 {
919 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
920
921 width--;
922 height--;
923
924 if (m_brush.GetStyle () != wxTRANSPARENT)
925 {
926 SetBrush (m_brush);
927
928 wxString buffer;
929 buffer.Printf( "newpath\n"
930 "%f %f %f %f 0 360 ellipse\n"
931 "fill\n",
932 XLOG2DEV(x + width / 2), YLOG2DEV(y + height / 2),
933 XLOG2DEVREL(width / 2), YLOG2DEVREL(height / 2) );
934 buffer.Replace( ",", "." );
935 PsPrint( buffer );
936
937 CalcBoundingBox( x - width, y - height );
938 CalcBoundingBox( x + width, y + height );
939 }
940
941 if (m_pen.GetStyle () != wxTRANSPARENT)
942 {
943 SetPen (m_pen);
944
945 wxString buffer;
946 buffer.Printf( "newpath\n"
947 "%f %f %f %f 0 360 ellipse\n"
948 "stroke\n",
949 XLOG2DEV(x + width / 2), YLOG2DEV(y + height / 2),
950 XLOG2DEVREL(width / 2), YLOG2DEVREL(height / 2) );
951 buffer.Replace( ",", "." );
952 PsPrint( buffer );
953
954 CalcBoundingBox( x - width, y - height );
955 CalcBoundingBox( x + width, y + height );
956 }
957 }
958
959 void wxPostScriptDCImpl::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
960 {
961 DoDrawBitmap( icon, x, y, true );
962 }
963
964 /* this has to be char, not wxChar */
965 static char hexArray[] = "0123456789ABCDEF";
966
967 void wxPostScriptDCImpl::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
968 {
969 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
970
971 if (!bitmap.Ok()) return;
972
973 wxImage image = bitmap.ConvertToImage();
974
975 if (!image.Ok()) return;
976
977 wxCoord w = image.GetWidth();
978 wxCoord h = image.GetHeight();
979
980 double ww = XLOG2DEVREL(image.GetWidth());
981 double hh = YLOG2DEVREL(image.GetHeight());
982
983 double xx = XLOG2DEV(x);
984 double yy = YLOG2DEV(y + bitmap.GetHeight());
985
986 wxString buffer;
987 buffer.Printf( "/origstate save def\n"
988 "20 dict begin\n"
989 "/pix %d string def\n"
990 "/grays %d string def\n"
991 "/npixels 0 def\n"
992 "/rgbindx 0 def\n"
993 "%f %f translate\n"
994 "%f %f scale\n"
995 "%d %d 8\n"
996 "[%d 0 0 %d 0 %d]\n"
997 "{currentfile pix readhexstring pop}\n"
998 "false 3 colorimage\n",
999 w, w, xx, yy, ww, hh, w, h, w, -h, h );
1000 buffer.Replace( ",", "." );
1001 PsPrint( buffer );
1002
1003 unsigned char* data = image.GetData();
1004
1005 // size of the buffer = width*rgb(3)*hexa(2)+'\n'
1006 wxCharBuffer charbuffer(w*6 + 1);
1007 int firstDigit, secondDigit;
1008
1009 //rows
1010 for (int j = 0; j < h; j++)
1011 {
1012 char* bufferindex = charbuffer.data();
1013
1014 //cols
1015 for (int i = 0; i < w*3; i++)
1016 {
1017 firstDigit = (int)(*data/16.0);
1018 secondDigit = (int)(*data - (firstDigit*16.0));
1019 *(bufferindex++) = hexArray[firstDigit];
1020 *(bufferindex++) = hexArray[secondDigit];
1021
1022 data++;
1023 }
1024 *(bufferindex++) = '\n';
1025 *bufferindex = 0;
1026
1027 if (m_pstream)
1028 fwrite( charbuffer, 1, strlen( charbuffer ), m_pstream );
1029 else
1030 PsPrint( charbuffer );
1031 }
1032
1033 PsPrint( "end\n" );
1034 PsPrint( "origstate restore\n" );
1035 }
1036
1037 void wxPostScriptDCImpl::SetFont( const wxFont& font )
1038 {
1039 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1040
1041 if (!font.Ok()) return;
1042
1043 m_font = font;
1044
1045 int Style = m_font.GetStyle();
1046 int Weight = m_font.GetWeight();
1047
1048 const char *name;
1049 switch (m_font.GetFamily())
1050 {
1051 case wxTELETYPE:
1052 case wxMODERN:
1053 {
1054 if (Style == wxITALIC)
1055 {
1056 if (Weight == wxBOLD)
1057 name = "/Courier-BoldOblique";
1058 else
1059 name = "/Courier-Oblique";
1060 }
1061 else
1062 {
1063 if (Weight == wxBOLD)
1064 name = "/Courier-Bold";
1065 else
1066 name = "/Courier";
1067 }
1068 break;
1069 }
1070 case wxROMAN:
1071 {
1072 if (Style == wxITALIC)
1073 {
1074 if (Weight == wxBOLD)
1075 name = "/Times-BoldItalic";
1076 else
1077 name = "/Times-Italic";
1078 }
1079 else
1080 {
1081 if (Weight == wxBOLD)
1082 name = "/Times-Bold";
1083 else
1084 name = "/Times-Roman";
1085 }
1086 break;
1087 }
1088 case wxSCRIPT:
1089 {
1090 name = "/ZapfChancery-MediumItalic";
1091 break;
1092 }
1093 case wxSWISS:
1094 default:
1095 {
1096 if (Style == wxITALIC)
1097 {
1098 if (Weight == wxBOLD)
1099 name = "/Helvetica-BoldOblique";
1100 else
1101 name = "/Helvetica-Oblique";
1102 }
1103 else
1104 {
1105 if (Weight == wxBOLD)
1106 name = "/Helvetica-Bold";
1107 else
1108 name = "/Helvetica";
1109 }
1110 break;
1111 }
1112 }
1113
1114 // We may legitimately call SetFont before BeginDoc
1115 if (!m_pstream)
1116 return;
1117
1118 PsPrint( name );
1119 PsPrint( " reencodeISO def\n" );
1120 PsPrint( name );
1121 PsPrint( " findfont\n" );
1122
1123
1124 double size = (double) m_font.GetPointSize();
1125 wxString buffer;
1126 buffer.Printf( "%f scalefont setfont\n", size * DEV2PS * m_scaleX );
1127 buffer.Replace( ",", "." );
1128 PsPrint( buffer );
1129 }
1130
1131 void wxPostScriptDCImpl::SetPen( const wxPen& pen )
1132 {
1133 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1134
1135 if (!pen.Ok()) return;
1136
1137 int oldStyle = m_pen.GetStyle();
1138
1139 m_pen = pen;
1140
1141 double width;
1142
1143 if (m_pen.GetWidth() <= 0)
1144 width = 0.1;
1145 else
1146 width = (double) m_pen.GetWidth();
1147
1148 wxString buffer;
1149 buffer.Printf( "%f setlinewidth\n", width * DEV2PS * m_scaleX );
1150 buffer.Replace( ",", "." );
1151 PsPrint( buffer );
1152
1153 /*
1154 Line style - WRONG: 2nd arg is OFFSET
1155
1156 Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1157 operator correctly. You should look-up this in the Red Book: the 2nd parame-
1158 ter is not number of values in the array of the first one, but an offset
1159 into this description of the pattern. I mean a real *offset* not index
1160 into array. I.e. If the command is [3 4] 1 setdash is used, then there
1161 will be first black line *2* units wxCoord, then space 4 units, then the
1162 pattern of *3* units black, 4 units space will be repeated.
1163 */
1164
1165 static const char *dotted = "[2 5] 2";
1166 static const char *short_dashed = "[4 4] 2";
1167 static const char *wxCoord_dashed = "[4 8] 2";
1168 static const char *dotted_dashed = "[6 6 2 6] 4";
1169
1170 const char *psdash;
1171
1172 switch (m_pen.GetStyle())
1173 {
1174 case wxDOT: psdash = dotted; break;
1175 case wxSHORT_DASH: psdash = short_dashed; break;
1176 case wxLONG_DASH: psdash = wxCoord_dashed; break;
1177 case wxDOT_DASH: psdash = dotted_dashed; break;
1178 case wxUSER_DASH:
1179 {
1180 wxDash *dashes;
1181 int nDashes = m_pen.GetDashes (&dashes);
1182 PsPrint ("[");
1183 for (int i = 0; i < nDashes; ++i)
1184 {
1185 buffer.Printf( "%d ", dashes [i] );
1186 PsPrint( buffer );
1187 }
1188 PsPrint ("] 0 setdash\n");
1189 psdash = 0;
1190 }
1191 break;
1192 case wxSOLID:
1193 case wxTRANSPARENT:
1194 default: psdash = "[] 0"; break;
1195 }
1196
1197 if ( psdash && (oldStyle != m_pen.GetStyle()) )
1198 {
1199 PsPrint( psdash );
1200 PsPrint( " setdash\n" );
1201 }
1202
1203 // Line colour
1204 unsigned char red = m_pen.GetColour().Red();
1205 unsigned char blue = m_pen.GetColour().Blue();
1206 unsigned char green = m_pen.GetColour().Green();
1207
1208 if (!m_colour)
1209 {
1210 // Anything not white is black
1211 if (! (red == (unsigned char) 255 &&
1212 blue == (unsigned char) 255 &&
1213 green == (unsigned char) 255) )
1214 {
1215 red = (unsigned char) 0;
1216 green = (unsigned char) 0;
1217 blue = (unsigned char) 0;
1218 }
1219 // setgray here ?
1220 }
1221
1222 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1223 {
1224 double redPS = (double)(red) / 255.0;
1225 double bluePS = (double)(blue) / 255.0;
1226 double greenPS = (double)(green) / 255.0;
1227
1228 wxString buffer;
1229 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1230 buffer.Replace( ",", "." );
1231 PsPrint( buffer );
1232
1233 m_currentRed = red;
1234 m_currentBlue = blue;
1235 m_currentGreen = green;
1236 }
1237 }
1238
1239 void wxPostScriptDCImpl::SetBrush( const wxBrush& brush )
1240 {
1241 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1242
1243 if (!brush.Ok()) return;
1244
1245 m_brush = brush;
1246
1247 // Brush colour
1248 unsigned char red = m_brush.GetColour().Red();
1249 unsigned char blue = m_brush.GetColour().Blue();
1250 unsigned char green = m_brush.GetColour().Green();
1251
1252 if (!m_colour)
1253 {
1254 // Anything not white is black
1255 if (! (red == (unsigned char) 255 &&
1256 blue == (unsigned char) 255 &&
1257 green == (unsigned char) 255) )
1258 {
1259 red = (unsigned char) 0;
1260 green = (unsigned char) 0;
1261 blue = (unsigned char) 0;
1262 }
1263 // setgray here ?
1264 }
1265
1266 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1267 {
1268 double redPS = (double)(red) / 255.0;
1269 double bluePS = (double)(blue) / 255.0;
1270 double greenPS = (double)(green) / 255.0;
1271
1272 wxString buffer;
1273 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1274 buffer.Replace( ",", "." );
1275 PsPrint( buffer );
1276
1277 m_currentRed = red;
1278 m_currentBlue = blue;
1279 m_currentGreen = green;
1280 }
1281 }
1282
1283 void wxPostScriptDCImpl::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1284 {
1285 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1286
1287 const wxWX2MBbuf textbuf = text.mb_str();
1288 if ( !textbuf )
1289 return;
1290
1291 if (m_textForegroundColour.Ok())
1292 {
1293 unsigned char red = m_textForegroundColour.Red();
1294 unsigned char blue = m_textForegroundColour.Blue();
1295 unsigned char green = m_textForegroundColour.Green();
1296
1297 if (!m_colour)
1298 {
1299 // Anything not white is black
1300 if (! (red == (unsigned char) 255 &&
1301 blue == (unsigned char) 255 &&
1302 green == (unsigned char) 255))
1303 {
1304 red = (unsigned char) 0;
1305 green = (unsigned char) 0;
1306 blue = (unsigned char) 0;
1307 }
1308 }
1309
1310 // maybe setgray here ?
1311 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1312 {
1313 double redPS = (double)(red) / 255.0;
1314 double bluePS = (double)(blue) / 255.0;
1315 double greenPS = (double)(green) / 255.0;
1316
1317 wxString buffer;
1318 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1319 buffer.Replace( ",", "." );
1320 PsPrint( buffer );
1321
1322 m_currentRed = red;
1323 m_currentBlue = blue;
1324 m_currentGreen = green;
1325 }
1326 }
1327
1328 wxCoord text_w, text_h, text_descent;
1329
1330 GetOwner()->GetTextExtent(text, &text_w, &text_h, &text_descent);
1331
1332 int size = m_font.GetPointSize();
1333
1334 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1335 // commented by V. Slavik and replaced by accurate version
1336 // - note that there is still rounding error in text_descent!
1337 wxCoord by = y + size - text_descent; // baseline
1338
1339 wxString buffer;
1340 buffer.Printf( "%f %f moveto\n", XLOG2DEV(x), YLOG2DEV(by) );
1341 buffer.Replace( ",", "." );
1342 PsPrint( buffer );
1343 PsPrint( "(" );
1344
1345 for ( const char *p = textbuf; *p != '\0'; p++ )
1346 {
1347 int c = (unsigned char)*p;
1348 if (c == ')' || c == '(' || c == '\\')
1349 {
1350 /* Cope with special characters */
1351 PsPrint( "\\" );
1352 PsPrint( (char) c );
1353 }
1354 else if ( c >= 128 )
1355 {
1356 /* Cope with character codes > 127 */
1357 buffer.Printf( "\\%o", c );
1358 PsPrint( buffer );
1359 }
1360 else
1361 {
1362 PsPrint( (char) c );
1363 }
1364 }
1365
1366 PsPrint( ") show\n" );
1367
1368 if (m_font.GetUnderlined())
1369 {
1370 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1371
1372 buffer.Printf( "gsave\n"
1373 "%f %f moveto\n"
1374 "%f setlinewidth\n"
1375 "%f %f lineto\n"
1376 "stroke\n"
1377 "grestore\n",
1378 XLOG2DEV(x), YLOG2DEV(uy),
1379 m_underlineThickness,
1380 XLOG2DEV(x + text_w), YLOG2DEV(uy) );
1381 buffer.Replace( ",", "." );
1382 PsPrint( buffer );
1383 }
1384
1385 CalcBoundingBox( x, y );
1386 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1387 }
1388
1389 void wxPostScriptDCImpl::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1390 {
1391 if ( wxIsNullDouble(angle) )
1392 {
1393 DoDrawText(text, x, y);
1394 return;
1395 }
1396
1397 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1398
1399 SetFont( m_font );
1400
1401 if (m_textForegroundColour.Ok())
1402 {
1403 unsigned char red = m_textForegroundColour.Red();
1404 unsigned char blue = m_textForegroundColour.Blue();
1405 unsigned char green = m_textForegroundColour.Green();
1406
1407 if (!m_colour)
1408 {
1409 // Anything not white is black
1410 if (! (red == (unsigned char) 255 &&
1411 blue == (unsigned char) 255 &&
1412 green == (unsigned char) 255))
1413 {
1414 red = (unsigned char) 0;
1415 green = (unsigned char) 0;
1416 blue = (unsigned char) 0;
1417 }
1418 }
1419
1420 // maybe setgray here ?
1421 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1422 {
1423 double redPS = (double)(red) / 255.0;
1424 double bluePS = (double)(blue) / 255.0;
1425 double greenPS = (double)(green) / 255.0;
1426
1427 wxString buffer;
1428 buffer.Printf( "%f %f %f setrgbcolor\n", redPS, greenPS, bluePS );
1429 buffer.Replace( ",", "." );
1430 PsPrint( buffer );
1431
1432 m_currentRed = red;
1433 m_currentBlue = blue;
1434 m_currentGreen = green;
1435 }
1436 }
1437
1438 int size = m_font.GetPointSize();
1439
1440 wxString buffer;
1441 buffer.Printf( "%f %f moveto\n", XLOG2DEV(x), YLOG2DEV(y));
1442 buffer.Replace( ",", "." );
1443 PsPrint( buffer );
1444
1445 buffer.Printf( "%f rotate\n", angle );
1446 buffer.Replace( ",", "." );
1447 PsPrint( buffer );
1448
1449 PsPrint( "(" );
1450 const wxWX2MBbuf textbuf = text.mb_str();
1451 if ( textbuf )
1452 {
1453 for ( const char *p = textbuf; *p != '\0'; p++ )
1454 {
1455 int c = (unsigned char)*p;
1456 if (c == ')' || c == '(' || c == '\\')
1457 {
1458 /* Cope with special characters */
1459 PsPrint( "\\" );
1460 PsPrint( (char) c );
1461 }
1462 else if ( c >= 128 )
1463 {
1464 /* Cope with character codes > 127 */
1465 buffer.Printf( "\\%o", c);
1466 PsPrint( buffer );
1467 }
1468 else
1469 {
1470 PsPrint( (char) c );
1471 }
1472 }
1473 }
1474
1475 PsPrint( ") show\n" );
1476
1477 buffer.Printf( "%f rotate\n", -angle );
1478 buffer.Replace( ",", "." );
1479 PsPrint( buffer );
1480
1481 if (m_font.GetUnderlined())
1482 {
1483 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1484 wxCoord w, h;
1485 GetOwner()->GetTextExtent(text, &w, &h);
1486
1487 buffer.Printf(
1488 "gsave\n"
1489 "%f %f moveto\n"
1490 "%f setlinewidth\n"
1491 "%f %f lineto\n"
1492 "stroke\n"
1493 "grestore\n",
1494 XLOG2DEV(x), YLOG2DEV(uy),
1495 m_underlineThickness,
1496 XLOG2DEV(x + w), YLOG2DEV(uy) );
1497 buffer.Replace( ",", "." );
1498 PsPrint( buffer );
1499 }
1500
1501 CalcBoundingBox( x, y );
1502 CalcBoundingBox( x + size * text.length() * 2/3 , y );
1503 }
1504
1505 void wxPostScriptDCImpl::SetBackground (const wxBrush& brush)
1506 {
1507 m_backgroundBrush = brush;
1508 }
1509
1510 void wxPostScriptDCImpl::SetLogicalFunction (int WXUNUSED(function))
1511 {
1512 wxFAIL_MSG( wxT("wxPostScriptDCImpl::SetLogicalFunction not implemented.") );
1513 }
1514
1515 #if wxUSE_SPLINES
1516 void wxPostScriptDCImpl::DoDrawSpline( const wxPointList *points )
1517 {
1518 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1519
1520 SetPen( m_pen );
1521
1522 // a and b are not used
1523 //double a, b;
1524 double c, d, x1, y1, x2, y2, x3, y3;
1525 wxPoint *p, *q;
1526
1527 wxPointList::compatibility_iterator node = points->GetFirst();
1528 p = node->GetData();
1529 x1 = p->x;
1530 y1 = p->y;
1531
1532 node = node->GetNext();
1533 p = node->GetData();
1534 c = p->x;
1535 d = p->y;
1536 x3 =
1537 #if 0
1538 a =
1539 #endif
1540 (double)(x1 + c) / 2;
1541 y3 =
1542 #if 0
1543 b =
1544 #endif
1545 (double)(y1 + d) / 2;
1546
1547 wxString buffer;
1548 buffer.Printf( "newpath\n"
1549 "%f %f moveto\n"
1550 "%f %f lineto\n",
1551 XLOG2DEV(wxRound(x1)), YLOG2DEV(wxRound(y1)),
1552 XLOG2DEV(wxRound(x3)), YLOG2DEV(wxRound(y3)) );
1553 buffer.Replace( ",", "." );
1554 PsPrint( buffer );
1555
1556 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1557 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1558
1559 node = node->GetNext();
1560 while (node)
1561 {
1562 q = node->GetData();
1563
1564 x1 = x3;
1565 y1 = y3;
1566 x2 = c;
1567 y2 = d;
1568 c = q->x;
1569 d = q->y;
1570 x3 = (double)(x2 + c) / 2;
1571 y3 = (double)(y2 + d) / 2;
1572
1573 buffer.Printf( "%f %f %f %f %f %f DrawSplineSection\n",
1574 XLOG2DEV(wxRound(x1)), YLOG2DEV(wxRound(y1)),
1575 XLOG2DEV(wxRound(x2)), YLOG2DEV(wxRound(y2)),
1576 XLOG2DEV(wxRound(x3)), YLOG2DEV(wxRound(y3)) );
1577 buffer.Replace( ",", "." );
1578 PsPrint( buffer );
1579
1580 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1581 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1582
1583 node = node->GetNext();
1584 }
1585
1586 /*
1587 At this point, (x2,y2) and (c,d) are the position of the
1588 next-to-last and last point respectively, in the point list
1589 */
1590
1591 buffer.Printf( "%f %f lineto\nstroke\n", XLOG2DEV(wxRound(c)), YLOG2DEV(wxRound(d)) );
1592 buffer.Replace( ",", "." );
1593 PsPrint( buffer );
1594 }
1595 #endif // wxUSE_SPLINES
1596
1597 wxCoord wxPostScriptDCImpl::GetCharWidth() const
1598 {
1599 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1600 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1601 }
1602
1603 void wxPostScriptDCImpl::SetPrintData(const wxPrintData& data)
1604 {
1605 m_printData = data;
1606
1607 wxPaperSize id = m_printData.GetPaperId();
1608 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1609 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1610 int w = 595;
1611 int h = 842;
1612 if (paper)
1613 {
1614 w = paper->GetSizeDeviceUnits().x;
1615 h = paper->GetSizeDeviceUnits().y;
1616 }
1617
1618 if (m_printData.GetOrientation() == wxLANDSCAPE)
1619 m_pageHeight = w * PS2DEV;
1620 else
1621 m_pageHeight = h * PS2DEV;
1622 }
1623
1624 void wxPostScriptDCImpl::ComputeScaleAndOrigin()
1625 {
1626 const wxRealPoint origScale(m_scaleX, m_scaleY);
1627
1628 wxDCImpl::ComputeScaleAndOrigin();
1629
1630 // If scale has changed call SetPen to recalulate the line width
1631 // and SetFont to recalculate font size
1632 if ( wxRealPoint(m_scaleX, m_scaleY) != origScale && m_pen.IsOk() )
1633 {
1634 SetPen( m_pen );
1635 SetFont( m_font );
1636 }
1637 }
1638
1639 void wxPostScriptDCImpl::DoGetSize(int* width, int* height) const
1640 {
1641 wxPaperSize id = m_printData.GetPaperId();
1642
1643 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1644
1645 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1646
1647 int w = 595;
1648 int h = 842;
1649 if (paper)
1650 {
1651 w = paper->GetSizeDeviceUnits().x;
1652 h = paper->GetSizeDeviceUnits().y;
1653 }
1654
1655 if (m_printData.GetOrientation() == wxLANDSCAPE)
1656 {
1657 int tmp = w;
1658 w = h;
1659 h = tmp;
1660 }
1661
1662 if (width)
1663 *width = wxRound( w * PS2DEV );
1664
1665 if (height)
1666 *height = wxRound( h * PS2DEV );
1667 }
1668
1669 void wxPostScriptDCImpl::DoGetSizeMM(int *width, int *height) const
1670 {
1671 wxPaperSize id = m_printData.GetPaperId();
1672
1673 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1674
1675 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1676
1677 int w = 210;
1678 int h = 297;
1679 if (paper)
1680 {
1681 w = paper->GetWidth() / 10;
1682 h = paper->GetHeight() / 10;
1683 }
1684
1685 if (m_printData.GetOrientation() == wxLANDSCAPE)
1686 {
1687 int tmp = w;
1688 w = h;
1689 h = tmp;
1690 }
1691
1692 if (width) *width = w;
1693 if (height) *height = h;
1694 }
1695
1696 // Resolution in pixels per logical inch
1697 wxSize wxPostScriptDCImpl::GetPPI(void) const
1698 {
1699 return wxSize( DPI, DPI );
1700 }
1701
1702
1703 bool wxPostScriptDCImpl::StartDoc( const wxString& message )
1704 {
1705 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1706
1707 if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1708 {
1709 if (m_printData.GetFilename() == wxEmptyString)
1710 {
1711 wxString filename = wxGetTempFileName( wxT("ps") );
1712 m_printData.SetFilename(filename);
1713 }
1714
1715 m_pstream = wxFopen( m_printData.GetFilename(), wxT("w+") );
1716
1717 if (!m_pstream)
1718 {
1719 wxLogError( _("Cannot open file for PostScript printing!"));
1720 m_ok = false;
1721 return false;
1722 }
1723 }
1724
1725 m_ok = true;
1726 m_title = message;
1727
1728 wxString buffer;
1729
1730 PsPrint( "%!PS-Adobe-2.0\n" );
1731
1732 buffer.Printf( "%%%%Title: %s\n", m_title );
1733 PsPrint( buffer );
1734 PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1735
1736 buffer.Printf( "%%%%CreationDate: %s\n", wxNow() );
1737 PsPrint( buffer );
1738
1739 if (m_printData.GetOrientation() == wxLANDSCAPE)
1740 PsPrint( "%%Orientation: Landscape\n" );
1741 else
1742 PsPrint( "%%Orientation: Portrait\n" );
1743
1744 const wxChar *paper;
1745 switch (m_printData.GetPaperId())
1746 {
1747 case wxPAPER_LETTER: paper = wxT("Letter"); break; // Letter: paper ""; 8 1/2 by 11 inches
1748 case wxPAPER_LEGAL: paper = wxT("Legal"); break; // Legal, 8 1/2 by 14 inches
1749 case wxPAPER_A4: paper = wxT("A4"); break; // A4 Sheet, 210 by 297 millimeters
1750 case wxPAPER_TABLOID: paper = wxT("Tabloid"); break; // Tabloid, 11 by 17 inches
1751 case wxPAPER_LEDGER: paper = wxT("Ledger"); break; // Ledger, 17 by 11 inches
1752 case wxPAPER_STATEMENT: paper = wxT("Statement"); break; // Statement, 5 1/2 by 8 1/2 inches
1753 case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break; // Executive, 7 1/4 by 10 1/2 inches
1754 case wxPAPER_A3: paper = wxT("A3"); break; // A3 sheet, 297 by 420 millimeters
1755 case wxPAPER_A5: paper = wxT("A5"); break; // A5 sheet, 148 by 210 millimeters
1756 case wxPAPER_B4: paper = wxT("B4"); break; // B4 sheet, 250 by 354 millimeters
1757 case wxPAPER_B5: paper = wxT("B5"); break; // B5 sheet, 182-by-257-millimeter paper
1758 case wxPAPER_FOLIO: paper = wxT("Folio"); break; // Folio, 8-1/2-by-13-inch paper
1759 case wxPAPER_QUARTO: paper = wxT("Quaro"); break; // Quarto, 215-by-275-millimeter paper
1760 case wxPAPER_10X14: paper = wxT("10x14"); break; // 10-by-14-inch sheet
1761 default: paper = wxT("A4");
1762 }
1763
1764 buffer.Printf( "%%%%DocumentPaperSizes: %s\n", paper );
1765 PsPrint( buffer );
1766
1767 PsPrint( "%%EndComments\n\n" );
1768
1769 PsPrint( "%%BeginProlog\n" );
1770 PsPrint( wxPostScriptHeaderConicTo );
1771 PsPrint( wxPostScriptHeaderEllipse );
1772 PsPrint( wxPostScriptHeaderEllipticArc );
1773 PsPrint( wxPostScriptHeaderColourImage );
1774 PsPrint( wxPostScriptHeaderReencodeISO1 );
1775 PsPrint( wxPostScriptHeaderReencodeISO2 );
1776 if (wxPostScriptHeaderSpline)
1777 PsPrint( wxPostScriptHeaderSpline );
1778 PsPrint( "%%EndProlog\n" );
1779
1780 SetBrush( *wxBLACK_BRUSH );
1781 SetPen( *wxBLACK_PEN );
1782 SetBackground( *wxWHITE_BRUSH );
1783 SetTextForeground( *wxBLACK );
1784
1785 // set origin according to paper size
1786 SetDeviceOrigin( 0,0 );
1787
1788 m_pageNumber = 1;
1789 return true;
1790 }
1791
1792 void wxPostScriptDCImpl::EndDoc ()
1793 {
1794 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1795
1796 if (m_clipping)
1797 {
1798 m_clipping = false;
1799 PsPrint( "grestore\n" );
1800 }
1801
1802 if ( m_pstream ) {
1803 fclose( m_pstream );
1804 m_pstream = (FILE *) NULL;
1805 }
1806
1807 #if 0
1808 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1809 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1810 double wx_printer_scale_x, wx_printer_scale_y;
1811
1812 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1813 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1814
1815 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1816 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1817
1818 // Compute the bounding box. Note that it is in the default user
1819 // coordinate system, thus we have to convert the values.
1820 wxCoord minX = (wxCoord) XLOG2DEV(m_minX);
1821 wxCoord minY = (wxCoord) YLOG2DEV(m_minY);
1822 wxCoord maxX = (wxCoord) XLOG2DEV(m_maxX);
1823 wxCoord maxY = (wxCoord) YLOG2DEV(m_maxY);
1824
1825 // LOG2DEV may have changed the minimum to maximum vice versa
1826 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1827 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1828
1829 // account for used scaling (boundingbox is before scaling in ps-file)
1830 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1831 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1832
1833 wxCoord llx, lly, urx, ury;
1834 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1835 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1836 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1837 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1838 // (end of bounding box computation)
1839
1840
1841 // If we're landscape, our sense of "x" and "y" is reversed.
1842 if (m_printData.GetOrientation() == wxLANDSCAPE)
1843 {
1844 wxCoord tmp;
1845 tmp = llx; llx = lly; lly = tmp;
1846 tmp = urx; urx = ury; ury = tmp;
1847
1848 // We need either the two lines that follow, or we need to subtract
1849 // min_x from real_translate_y, which is commented out below.
1850 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1851 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1852 }
1853
1854 // The Adobe specifications call for integers; we round as to make
1855 // the bounding larger.
1856 PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1857 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1858 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1859
1860 // To check the correctness of the bounding box, postscript commands
1861 // to draw a box corresponding to the bounding box are generated below.
1862 // But since we typically don't want to print such a box, the postscript
1863 // commands are generated within comments. These lines appear before any
1864 // adjustment of scale, rotation, or translation, and hence are in the
1865 // default user coordinates.
1866 PsPrint( "% newpath\n" );
1867 PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1868 PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1869 PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1870 PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1871 #endif
1872
1873 #ifndef __WXMSW__
1874 wxPostScriptPrintNativeData *data =
1875 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1876
1877 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1878 {
1879 wxString command;
1880 command += data->GetPrinterCommand();
1881 command += wxT(" ");
1882 command += data->GetPrinterOptions();
1883 command += wxT(" ");
1884 command += m_printData.GetFilename();
1885
1886 wxExecute( command, true );
1887 wxRemoveFile( m_printData.GetFilename() );
1888 }
1889 #endif
1890 }
1891
1892 void wxPostScriptDCImpl::StartPage()
1893 {
1894 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1895
1896 wxString buffer;
1897 buffer.Printf( wxT("%%%%Page: %d\n"), m_pageNumber++ );
1898 PsPrint( buffer );
1899
1900 #if 0
1901 wxPostScriptPrintNativeData *data =
1902 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1903
1904 wxCoord translate_x = (wxCoord)data->GetPrinterTranslateX();
1905 wxCoord translate_y = (wxCoord)data->GetPrinterTranslateY();
1906
1907 buffer.Printf( "%d %d translate\n", translate_x, translate_y );
1908 PsPrint( buffer );
1909
1910 double scale_x = data->GetPrinterScaleX();
1911 double scale_y = data->GetPrinterScaleY();
1912
1913 buffer.Printf( "%f %f scale\n", scale_x, scale_y );
1914 buffer.Replace( ",", "." );
1915 PsPrint( buffer );
1916
1917 #endif
1918
1919 // Each page starts with an "initgraphics" which resets the
1920 // transformation and so we need to rotate the page for
1921 // landscape printing)
1922
1923 // I copied this one from a PostScript tutorial, but to no avail. RR.
1924 // PsPrint( "90 rotate llx neg ury nef translate\n" );
1925
1926 if (m_printData.GetOrientation() == wxLANDSCAPE)
1927 PsPrint( "90 rotate\n" );
1928 }
1929
1930 void wxPostScriptDCImpl::EndPage ()
1931 {
1932 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1933
1934 PsPrint( "showpage\n" );
1935 }
1936
1937 bool wxPostScriptDCImpl::DoBlit( wxCoord xdest, wxCoord ydest,
1938 wxCoord fwidth, wxCoord fheight,
1939 wxDC *source,
1940 wxCoord xsrc, wxCoord ysrc,
1941 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1942 {
1943 wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1944
1945 wxCHECK_MSG( source, false, wxT("invalid source dc") );
1946
1947 // blit into a bitmap
1948 wxBitmap bitmap( (int)fwidth, (int)fheight );
1949 wxMemoryDC memDC;
1950 memDC.SelectObject(bitmap);
1951 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1952 memDC.SelectObject(wxNullBitmap);
1953
1954 //draw bitmap. scaling and positioning is done there
1955 GetOwner()->DrawBitmap( bitmap, xdest, ydest );
1956
1957 return true;
1958 }
1959
1960 wxCoord wxPostScriptDCImpl::GetCharHeight() const
1961 {
1962 if (m_font.Ok())
1963 return m_font.GetPointSize();
1964 else
1965 return 12;
1966 }
1967
1968 void wxPostScriptDCImpl::PsPrint( const wxString& str )
1969 {
1970 const wxCharBuffer psdata(str.utf8_str());
1971
1972 wxPostScriptPrintNativeData *data =
1973 (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1974
1975 switch (m_printData.GetPrintMode())
1976 {
1977 #if wxUSE_STREAMS
1978 // append to output stream
1979 case wxPRINT_MODE_STREAM:
1980 {
1981 wxOutputStream* outputstream = data->GetOutputStream();
1982 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
1983 outputstream->Write( psdata, strlen( psdata ) );
1984 }
1985 break;
1986 #endif // wxUSE_STREAMS
1987
1988 // save data into file
1989 default:
1990 wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
1991 fwrite( psdata, 1, strlen( psdata ), m_pstream );
1992 }
1993 }
1994
1995 void wxPostScriptDCImpl::DoGetTextExtent(const wxString& string,
1996 wxCoord *x, wxCoord *y,
1997 wxCoord *descent, wxCoord *externalLeading,
1998 const wxFont *theFont ) const
1999 {
2000 const wxFont *fontToUse = theFont;
2001
2002 if (!fontToUse) fontToUse = &m_font;
2003
2004 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
2005
2006 if (string.empty())
2007 {
2008 if (x) (*x) = 0;
2009 if (y) (*y) = 0;
2010 if (descent) (*descent) = 0;
2011 if (externalLeading) (*externalLeading) = 0;
2012 return;
2013 }
2014
2015 // GTK 2.0
2016
2017 const wxWX2MBbuf strbuf = string.mb_str();
2018
2019 // conversion failed (non e.g. ISO characters)
2020 if ( !strbuf )
2021 return;
2022
2023 #if !wxUSE_AFM_FOR_POSTSCRIPT
2024 /* Provide a VERY rough estimate (avoid using it).
2025 * Produces accurate results for mono-spaced font
2026 * such as Courier (aka wxMODERN) */
2027
2028 int height = 12;
2029 if (fontToUse)
2030 {
2031 height = fontToUse->GetPointSize();
2032 }
2033 if ( x )
2034 *x = strlen (strbuf) * height * 72 / 120;
2035 if ( y )
2036 *y = (wxCoord) (height * 1.32); /* allow for descender */
2037 if (descent) *descent = 0;
2038 if (externalLeading) *externalLeading = 0;
2039 #else
2040
2041 /* method for calculating string widths in postscript:
2042 / read in the AFM (adobe font metrics) file for the
2043 / actual font, parse it and extract the character widths
2044 / and also the descender. this may be improved, but for now
2045 / it works well. the AFM file is only read in if the
2046 / font is changed. this may be chached in the future.
2047 / calls to GetTextExtent with the font unchanged are rather
2048 / efficient!!!
2049 /
2050 / for each font and style used there is an AFM file necessary.
2051 / currently i have only files for the roman font family.
2052 / I try to get files for the other ones!
2053 /
2054 / CAVE: the size of the string is currently always calculated
2055 / in 'points' (1/72 of an inch). this should later on be
2056 / changed to depend on the mapping mode.
2057 / CAVE: the path to the AFM files must be set before calling this
2058 / fun3B3Bction. this is usually done by a call like the following:
2059 / wxSetAFMPath("d:\\wxw161\\afm\\");
2060 /
2061 / example:
2062 /
2063 / wxPostScriptDC dc(NULL, true);
2064 / if (dc.Ok()){
2065 / wxSetAFMPath("d:\\wxw161\\afm\\");
2066 / dc.StartDoc("Test");
2067 / dc.StartPage();
2068 / wxCoord w,h;
2069 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
2070 / dc.GetTextExtent("Hallo",&w,&h);
2071 / dc.EndPage();
2072 / dc.EndDoc();
2073 / }
2074 /
2075 / by steve (stefan.hammes@urz.uni-heidelberg.de)
2076 / created: 10.09.94
2077 / updated: 14.05.95 */
2078
2079 /* these static vars are for storing the state between calls */
2080 static int lastFamily= INT_MIN;
2081 static int lastSize= INT_MIN;
2082 static int lastStyle= INT_MIN;
2083 static int lastWeight= INT_MIN;
2084 static int lastDescender = INT_MIN;
2085 static int lastWidths[256]; /* widths of the characters */
2086
2087 double UnderlinePosition = 0.0;
2088 double UnderlineThickness = 0.0;
2089
2090 // Get actual parameters
2091 int Family = fontToUse->GetFamily();
2092 int Size = fontToUse->GetPointSize();
2093 int Style = fontToUse->GetStyle();
2094 int Weight = fontToUse->GetWeight();
2095
2096 // If we have another font, read the font-metrics
2097 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
2098 {
2099 // Store actual values
2100 lastFamily = Family;
2101 lastSize = Size;
2102 lastStyle = Style;
2103 lastWeight = Weight;
2104
2105 const wxChar *name;
2106
2107 switch (Family)
2108 {
2109 case wxMODERN:
2110 case wxTELETYPE:
2111 {
2112 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
2113 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
2114 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
2115 else name = wxT("Cour.afm");
2116 break;
2117 }
2118 case wxROMAN:
2119 {
2120 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
2121 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
2122 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
2123 else name = wxT("TimesRo.afm");
2124 break;
2125 }
2126 case wxSCRIPT:
2127 {
2128 name = wxT("Zapf.afm");
2129 break;
2130 }
2131 case wxSWISS:
2132 default:
2133 {
2134 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
2135 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
2136 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
2137 else name = wxT("Helv.afm");
2138 break;
2139 }
2140 }
2141
2142 FILE *afmFile = NULL;
2143
2144 // Get the directory of the AFM files
2145 wxString afmName;
2146
2147 // VZ: I don't know if the cast always works under Unix but it clearly
2148 // never does under Windows where the pointer is
2149 // wxWindowsPrintNativeData and so calling GetFontMetricPath() on
2150 // it just crashes
2151 #ifndef __WIN32__
2152 wxPostScriptPrintNativeData *data =
2153 wxDynamicCast(m_printData.GetNativeData(), wxPostScriptPrintNativeData);
2154
2155 if (data && !data->GetFontMetricPath().empty())
2156 {
2157 afmName = data->GetFontMetricPath();
2158 afmName << wxFILE_SEP_PATH << name;
2159 }
2160 #endif // __WIN32__
2161
2162 if ( !afmName.empty() )
2163 afmFile = wxFopen(afmName, wxT("r"));
2164
2165 if ( !afmFile )
2166 {
2167 #if defined(__UNIX__) && !defined(__VMS__)
2168 afmName = wxGetDataDir();
2169 #else // !__UNIX__
2170 afmName = wxStandardPaths::Get().GetDataDir();
2171 #endif // __UNIX__/!__UNIX__
2172
2173 afmName << wxFILE_SEP_PATH
2174 #if defined(__LINUX__) || defined(__FREEBSD__)
2175 << wxT("gs_afm") << wxFILE_SEP_PATH
2176 #else
2177 << wxT("afm") << wxFILE_SEP_PATH
2178 #endif
2179 << name;
2180 afmFile = wxFopen(afmName,wxT("r"));
2181 }
2182
2183 /* 2. open and process the file
2184 / a short explanation of the AFM format:
2185 / we have for each character a line, which gives its size
2186 / e.g.:
2187 /
2188 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2189 /
2190 / that means, we have a character with ascii code 63, and width
2191 / (444/1000 * fontSize) points.
2192 / the other data is ignored for now!
2193 /
2194 / when the font has changed, we read in the right AFM file and store the
2195 / character widths in an array, which is processed below (see point 3.). */
2196 if (afmFile==NULL)
2197 {
2198 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2199 wxLogDebug( wxT(" using approximate values"));
2200 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2201 lastDescender = -150; /* dito. */
2202 }
2203 else
2204 {
2205 /* init the widths array */
2206 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2207 /* some variables for holding parts of a line */
2208 char cString[10], semiString[10], WXString[10];
2209 char descString[20];
2210 char upString[30], utString[30];
2211 char encString[50];
2212 char line[256];
2213 int ascii,cWidth;
2214 /* read in the file and parse it */
2215 while(fgets(line,sizeof(line),afmFile)!=NULL)
2216 {
2217 /* A.) check for descender definition */
2218 if (strncmp(line,"Descender",9)==0)
2219 {
2220 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2221 (strcmp(descString,"Descender")!=0))
2222 {
2223 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2224 }
2225 }
2226 /* JC 1.) check for UnderlinePosition */
2227 else if(strncmp(line,"UnderlinePosition",17)==0)
2228 {
2229 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2230 (strcmp(upString,"UnderlinePosition")!=0))
2231 {
2232 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2233 }
2234 }
2235 /* JC 2.) check for UnderlineThickness */
2236 else if(strncmp(line,"UnderlineThickness",18)==0)
2237 {
2238 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2239 (strcmp(utString,"UnderlineThickness")!=0))
2240 {
2241 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2242 }
2243 }
2244 /* JC 3.) check for EncodingScheme */
2245 else if(strncmp(line,"EncodingScheme",14)==0)
2246 {
2247 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2248 (strcmp(utString,"EncodingScheme")!=0))
2249 {
2250 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2251 }
2252 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2253 {
2254 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2255 afmName.c_str(),line, encString);
2256 }
2257 }
2258 /* B.) check for char-width */
2259 else if(strncmp(line,"C ",2)==0)
2260 {
2261 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2262 {
2263 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2264 }
2265 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2266 {
2267 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2268 }
2269 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2270 if (ascii>=0 && ascii<256)
2271 {
2272 lastWidths[ascii] = cWidth; /* store width */
2273 }
2274 else
2275 {
2276 /* MATTHEW: this happens a lot; don't print an error */
2277 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2278 }
2279 }
2280 /* C.) ignore other entries. */
2281 }
2282 fclose(afmFile);
2283 }
2284 /* hack to compute correct values for german 'Umlaute'
2285 / the correct way would be to map the character names
2286 / like 'adieresis' to corresp. positions of ISOEnc and read
2287 / these values from AFM files, too. Maybe later ... */
2288
2289 // NB: casts to int are needed to suppress gcc 3.3 warnings
2290 lastWidths[196] = lastWidths[(int)'A']; // U+00C4 A Umlaute
2291 lastWidths[228] = lastWidths[(int)'a']; // U+00E4 a Umlaute
2292 lastWidths[214] = lastWidths[(int)'O']; // U+00D6 O Umlaute
2293 lastWidths[246] = lastWidths[(int)'o']; // U+00F6 o Umlaute
2294 lastWidths[220] = lastWidths[(int)'U']; // U+00DC U Umlaute
2295 lastWidths[252] = lastWidths[(int)'u']; // U+00FC u Umlaute
2296 lastWidths[223] = lastWidths[(int)251]; // U+00DF eszett (scharfes s)
2297
2298 /* JC: calculate UnderlineThickness/UnderlinePosition */
2299
2300 // VS: dirty, but is there any better solution?
2301 double *pt;
2302 pt = (double*) &m_underlinePosition;
2303 *pt = YLOG2DEVREL((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2304 pt = (double*) &m_underlineThickness;
2305 *pt = YLOG2DEVREL((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2306
2307 }
2308
2309
2310 /* 3. now the font metrics are read in, calc size this
2311 / is done by adding the widths of the characters in the
2312 / string. they are given in 1/1000 of the size! */
2313
2314 long sum=0;
2315 wxCoord height=Size; /* by default */
2316 unsigned char *p;
2317 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2318 {
2319 if(lastWidths[*p]== INT_MIN)
2320 {
2321 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2322 sum += lastWidths[(unsigned char)' ']; /* assume space */
2323 }
2324 else
2325 {
2326 sum += lastWidths[*p];
2327 }
2328 }
2329
2330 double widthSum = sum;
2331 widthSum *= Size;
2332 widthSum /= 1000.0F;
2333
2334 /* add descender to height (it is usually a negative value) */
2335 //if (lastDescender != INT_MIN)
2336 //{
2337 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2338 //}
2339 // - commented by V. Slavik - height already contains descender in it
2340 // (judging from few experiments)
2341
2342 /* return size values */
2343 if ( x )
2344 *x = (wxCoord)widthSum;
2345 if ( y )
2346 *y = height;
2347
2348 /* return other parameters */
2349 if (descent)
2350 {
2351 if(lastDescender!=INT_MIN)
2352 {
2353 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2354 }
2355 else
2356 {
2357 *descent = 0;
2358 }
2359 }
2360
2361 /* currently no idea how to calculate this! */
2362 if (externalLeading) *externalLeading = 0;
2363 #endif
2364 // Use AFM
2365 }
2366
2367
2368 #endif // wxUSE_PRINTING_ARCHITECTURE && wxUSE_POSTSCRIPT
2369
2370 // vi:sts=4:sw=4:et
wxWidgets (Impactor)