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[wxWidgets.git] / src / generic / dcpsg.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: dcpsg.cpp
3 // Purpose: Generic wxPostScriptDC implementation
4 // Author: Julian Smart, Robert Roebling, Markus Holzhem
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
13 #pragma implementation "dcpsg.h"
14 #endif
15
16 #include "wx/wxprec.h"
17
18 #ifdef __BORLANDC__
19 #pragma hdrstop
20 #endif
21
22 #ifndef WX_PRECOMP
23 #endif // WX_PRECOMP
24
25 #if wxUSE_PRINTING_ARCHITECTURE
26
27 #if wxUSE_POSTSCRIPT
28
29 #include "wx/setup.h"
30
31 #include "wx/dcmemory.h"
32 #include "wx/utils.h"
33 #include "wx/intl.h"
34 #include "wx/app.h"
35 #include "wx/image.h"
36 #include "wx/log.h"
37 #include "wx/generic/dcpsg.h"
38 #include "wx/prntbase.h"
39 #include "wx/paper.h"
40 #include "wx/filefn.h"
41 #if WXWIN_COMPATIBILITY_2_2
42 #include "wx/window.h"
43 #include "wx/printdlg.h"
44 #endif
45
46 #include <math.h>
47
48 #ifdef __WXMSW__
49
50 #ifdef DrawText
51 #undef DrawText
52 #endif
53
54 #ifdef StartDoc
55 #undef StartDoc
56 #endif
57
58 #ifdef GetCharWidth
59 #undef GetCharWidth
60 #endif
61
62 #ifdef FindWindow
63 #undef FindWindow
64 #endif
65
66 #endif
67
68 //-----------------------------------------------------------------------------
69 // start and end of document/page
70 //-----------------------------------------------------------------------------
71
72 static const char *wxPostScriptHeaderConicTo = "\
73 /conicto {\n\
74 /to_y exch def\n\
75 /to_x exch def\n\
76 /conic_cntrl_y exch def\n\
77 /conic_cntrl_x exch def\n\
78 currentpoint\n\
79 /p0_y exch def\n\
80 /p0_x exch def\n\
81 /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\
82 /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\
83 /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\
84 /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\
85 p1_x p1_y p2_x p2_y to_x to_y curveto\n\
86 } bind def\n\
87 ";
88
89 static const char *wxPostScriptHeaderEllipse = "\
90 /ellipsedict 8 dict def\n\
91 ellipsedict /mtrx matrix put\n\
92 /ellipse {\n\
93 ellipsedict begin\n\
94 /endangle exch def\n\
95 /startangle exch def\n\
96 /yrad exch def\n\
97 /xrad exch def\n\
98 /y exch def\n\
99 /x exch def\n\
100 /savematrix mtrx currentmatrix def\n\
101 x y translate\n\
102 xrad yrad scale\n\
103 0 0 1 startangle endangle arc\n\
104 savematrix setmatrix\n\
105 end\n\
106 } def\n\
107 ";
108
109 static const char *wxPostScriptHeaderEllipticArc= "\
110 /ellipticarcdict 8 dict def\n\
111 ellipticarcdict /mtrx matrix put\n\
112 /ellipticarc\n\
113 { ellipticarcdict begin\n\
114 /do_fill exch def\n\
115 /endangle exch def\n\
116 /startangle exch def\n\
117 /yrad exch def\n\
118 /xrad exch def \n\
119 /y exch def\n\
120 /x exch def\n\
121 /savematrix mtrx currentmatrix def\n\
122 x y translate\n\
123 xrad yrad scale\n\
124 do_fill { 0 0 moveto } if\n\
125 0 0 1 startangle endangle arc\n\
126 savematrix setmatrix\n\
127 do_fill { fill }{ stroke } ifelse\n\
128 end\n\
129 } def\n";
130
131 static const char *wxPostScriptHeaderSpline = "\
132 /DrawSplineSection {\n\
133 /y3 exch def\n\
134 /x3 exch def\n\
135 /y2 exch def\n\
136 /x2 exch def\n\
137 /y1 exch def\n\
138 /x1 exch def\n\
139 /xa x1 x2 x1 sub 0.666667 mul add def\n\
140 /ya y1 y2 y1 sub 0.666667 mul add def\n\
141 /xb x3 x2 x3 sub 0.666667 mul add def\n\
142 /yb y3 y2 y3 sub 0.666667 mul add def\n\
143 x1 y1 lineto\n\
144 xa ya xb yb x3 y3 curveto\n\
145 } def\n\
146 ";
147
148 static const char *wxPostScriptHeaderColourImage = "\
149 %% define 'colorimage' if it isn't defined\n\
150 %% ('colortogray' and 'mergeprocs' come from xwd2ps\n\
151 %% via xgrab)\n\
152 /colorimage where %% do we know about 'colorimage'?\n\
153 { pop } %% yes: pop off the 'dict' returned\n\
154 { %% no: define one\n\
155 /colortogray { %% define an RGB->I function\n\
156 /rgbdata exch store %% call input 'rgbdata'\n\
157 rgbdata length 3 idiv\n\
158 /npixls exch store\n\
159 /rgbindx 0 store\n\
160 0 1 npixls 1 sub {\n\
161 grays exch\n\
162 rgbdata rgbindx get 20 mul %% Red\n\
163 rgbdata rgbindx 1 add get 32 mul %% Green\n\
164 rgbdata rgbindx 2 add get 12 mul %% Blue\n\
165 add add 64 idiv %% I = .5G + .31R + .18B\n\
166 put\n\
167 /rgbindx rgbindx 3 add store\n\
168 } for\n\
169 grays 0 npixls getinterval\n\
170 } bind def\n\
171 \n\
172 %% Utility procedure for colorimage operator.\n\
173 %% This procedure takes two procedures off the\n\
174 %% stack and merges them into a single procedure.\n\
175 \n\
176 /mergeprocs { %% def\n\
177 dup length\n\
178 3 -1 roll\n\
179 dup\n\
180 length\n\
181 dup\n\
182 5 1 roll\n\
183 3 -1 roll\n\
184 add\n\
185 array cvx\n\
186 dup\n\
187 3 -1 roll\n\
188 0 exch\n\
189 putinterval\n\
190 dup\n\
191 4 2 roll\n\
192 putinterval\n\
193 } bind def\n\
194 \n\
195 /colorimage { %% def\n\
196 pop pop %% remove 'false 3' operands\n\
197 {colortogray} mergeprocs\n\
198 image\n\
199 } bind def\n\
200 } ifelse %% end of 'false' case\n\
201 ";
202
203 #if wxUSE_PANGO
204 #else
205 static char wxPostScriptHeaderReencodeISO1[] =
206 "\n/reencodeISO {\n"
207 "dup dup findfont dup length dict begin\n"
208 "{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
209 "/Encoding ISOLatin1Encoding def\n"
210 "currentdict end definefont\n"
211 "} def\n"
212 "/ISOLatin1Encoding [\n"
213 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
214 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
215 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
216 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
217 "/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
218 "/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
219 "/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
220 "/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
221 "/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
222 "/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
223 "/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
224 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
225 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
226 "/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
227 "/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
228
229 static char wxPostScriptHeaderReencodeISO2[] =
230 "/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
231 "/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
232 "/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
233 "/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
234 "/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
235 "/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
236 "/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
237 "/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
238 "/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
239 "/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
240 "/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
241 "/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
242 "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
243 "/yacute/thorn/ydieresis\n"
244 "] def\n\n";
245 #endif
246
247 //-------------------------------------------------------------------------------
248 // wxPostScriptDC
249 //-------------------------------------------------------------------------------
250
251 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
252
253 float wxPostScriptDC::ms_PSScaleFactor = 1.0;
254
255 void wxPostScriptDC::SetResolution(int ppi)
256 {
257 ms_PSScaleFactor = (float)ppi / 72.0;
258 }
259
260 int wxPostScriptDC::GetResolution()
261 {
262 return (int)(ms_PSScaleFactor * 72.0);
263 }
264
265 //-------------------------------------------------------------------------------
266
267 wxPostScriptDC::wxPostScriptDC ()
268 {
269 m_pstream = (FILE*) NULL;
270
271 m_currentRed = 0;
272 m_currentGreen = 0;
273 m_currentBlue = 0;
274
275 m_pageNumber = 0;
276
277 m_clipping = FALSE;
278
279 m_underlinePosition = 0.0;
280 m_underlineThickness = 0.0;
281
282 m_signX = 1; // default x-axis left to right
283 m_signY = -1; // default y-axis bottom up -> top down
284 }
285
286 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
287 {
288 m_pstream = (FILE*) NULL;
289
290 m_currentRed = 0;
291 m_currentGreen = 0;
292 m_currentBlue = 0;
293
294 m_pageNumber = 0;
295
296 m_clipping = FALSE;
297
298 m_underlinePosition = 0.0;
299 m_underlineThickness = 0.0;
300
301 m_signX = 1; // default x-axis left to right
302 m_signY = -1; // default y-axis bottom up -> top down
303
304 m_printData = printData;
305
306 m_ok = TRUE;
307 }
308
309 wxPostScriptDC::~wxPostScriptDC ()
310 {
311 if (m_pstream)
312 {
313 fclose( m_pstream );
314 m_pstream = (FILE*) NULL;
315 }
316 }
317
318 #if WXWIN_COMPATIBILITY_2_2
319 bool wxPostScriptDC::Create( const wxString &output, bool interactive, wxWindow *parent )
320 {
321 wxPrintData data;
322 data.SetFilename( output );
323 data.SetPrintMode( wxPRINT_MODE_FILE );
324
325 if (interactive)
326 {
327 wxPrintDialogData ddata( data );
328 wxPrintDialog dialog( parent, &data );
329 dialog.GetPrintDialogData().SetSetupDialog(TRUE);
330 if (dialog.ShowModal() != wxID_OK)
331 {
332 m_ok = FALSE;
333 return FALSE;
334 }
335 data = dialog.GetPrintDialogData().GetPrintData();
336 }
337
338 return TRUE;
339 }
340 #endif
341
342
343 bool wxPostScriptDC::Ok() const
344 {
345 return m_ok;
346 }
347
348 void wxPostScriptDC::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
349 {
350 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
351
352 if (m_clipping) DestroyClippingRegion();
353
354 wxDC::DoSetClippingRegion(x, y, w, h);
355
356 m_clipping = TRUE;
357
358 if (m_pstream)
359 fprintf( m_pstream,
360 "gsave\n newpath\n"
361 "%d %d moveto\n"
362 "%d %d lineto\n"
363 "%d %d lineto\n"
364 "%d %d lineto\n"
365 "closepath clip newpath\n",
366 LogicalToDeviceX(x), LogicalToDeviceY(y),
367 LogicalToDeviceX(x+w), LogicalToDeviceY(y),
368 LogicalToDeviceX(x+w), LogicalToDeviceY(y+h),
369 LogicalToDeviceX(x), LogicalToDeviceY(y+h) );
370 }
371
372
373 void wxPostScriptDC::DestroyClippingRegion()
374 {
375 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
376
377 if (m_clipping)
378 {
379 m_clipping = FALSE;
380 if ( m_pstream )
381 fprintf( m_pstream, "grestore\n" );
382 }
383
384 wxDC::DestroyClippingRegion();
385 }
386
387 void wxPostScriptDC::Clear()
388 {
389 // This should fail silently to avoid unnecessary
390 // asserts
391 // wxFAIL_MSG( wxT("wxPostScriptDC::Clear not implemented.") );
392 }
393
394 bool wxPostScriptDC::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
395 {
396 wxFAIL_MSG( wxT("wxPostScriptDC::FloodFill not implemented.") );
397 return FALSE;
398 }
399
400 bool wxPostScriptDC::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
401 {
402 wxFAIL_MSG( wxT("wxPostScriptDC::GetPixel not implemented.") );
403 return FALSE;
404 }
405
406 void wxPostScriptDC::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
407 {
408 wxFAIL_MSG( wxT("wxPostScriptDC::CrossHair not implemented.") );
409 }
410
411 void wxPostScriptDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
412 {
413 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
414
415 if (m_pen.GetStyle() == wxTRANSPARENT) return;
416
417 SetPen( m_pen );
418
419 if ( m_pstream )
420 fprintf( m_pstream,
421 "newpath\n"
422 "%d %d moveto\n"
423 "%d %d lineto\n"
424 "stroke\n",
425 LogicalToDeviceX(x1), LogicalToDeviceY(y1),
426 LogicalToDeviceX(x2), LogicalToDeviceY (y2) );
427
428 CalcBoundingBox( x1, y1 );
429 CalcBoundingBox( x2, y2 );
430 }
431
432 #define RAD2DEG 57.29577951308
433
434 void wxPostScriptDC::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
435 {
436 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
437
438 wxCoord dx = x1 - xc;
439 wxCoord dy = y1 - yc;
440 wxCoord radius = (wxCoord) sqrt( (double)(dx*dx+dy*dy) );
441 double alpha1, alpha2;
442
443 if (x1 == x2 && y1 == y2)
444 {
445 alpha1 = 0.0;
446 alpha2 = 360.0;
447 }
448 else if (radius == 0.0)
449 {
450 alpha1 = alpha2 = 0.0;
451 }
452 else
453 {
454 alpha1 = (x1 - xc == 0) ?
455 (y1 - yc < 0) ? 90.0 : -90.0 :
456 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
457 alpha2 = (x2 - xc == 0) ?
458 (y2 - yc < 0) ? 90.0 : -90.0 :
459 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
460 }
461 while (alpha1 <= 0) alpha1 += 360;
462 while (alpha2 <= 0) alpha2 += 360; // adjust angles to be between
463 while (alpha1 > 360) alpha1 -= 360; // 0 and 360 degree
464 while (alpha2 > 360) alpha2 -= 360;
465
466 if (m_brush.GetStyle() != wxTRANSPARENT)
467 {
468 SetBrush( m_brush );
469
470 if ( m_pstream )
471 fprintf( m_pstream,
472 "newpath\n"
473 "%d %d %d %d %d %d ellipse\n"
474 "%d %d lineto\n"
475 "closepath\n"
476 "fill\n",
477 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
478 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
479
480 CalcBoundingBox( xc-radius, yc-radius );
481 CalcBoundingBox( xc+radius, yc+radius );
482 }
483
484 if (m_pen.GetStyle() != wxTRANSPARENT)
485 {
486 SetPen( m_pen );
487
488 if ( m_pstream )
489 fprintf( m_pstream,
490 "newpath\n"
491 "%d %d %d %d %d %d ellipse\n"
492 "%d %d lineto\n"
493 "stroke\n"
494 "fill\n",
495 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
496 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
497
498 CalcBoundingBox( xc-radius, yc-radius );
499 CalcBoundingBox( xc+radius, yc+radius );
500 }
501 }
502
503 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
504 {
505 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
506
507 if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
508 if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
509 if (sa<0) sa+=360;
510 if (ea<0) ea+=360;
511
512 if (sa==ea)
513 {
514 DrawEllipse(x,y,w,h);
515 return;
516 }
517
518 if (m_brush.GetStyle () != wxTRANSPARENT)
519 {
520 SetBrush( m_brush );
521
522 if ( m_pstream )
523 fprintf( m_pstream,
524 "newpath\n"
525 "%d %d %d %d %d %d true ellipticarc\n",
526 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2), LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2), (wxCoord)sa, (wxCoord)ea );
527
528 CalcBoundingBox( x ,y );
529 CalcBoundingBox( x+w, y+h );
530 }
531
532 if (m_pen.GetStyle () != wxTRANSPARENT)
533 {
534 SetPen( m_pen );
535
536 if ( m_pstream )
537 fprintf(m_pstream,
538 "newpath\n"
539 "%d %d %d %d %d %d false ellipticarc\n",
540 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2), LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2), (wxCoord)sa, (wxCoord)ea );
541
542 CalcBoundingBox( x ,y );
543 CalcBoundingBox( x+w, y+h );
544 }
545 }
546
547 void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
548 {
549 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
550
551 if (m_pen.GetStyle() == wxTRANSPARENT) return;
552
553 SetPen (m_pen);
554
555 if ( m_pstream )
556 fprintf( m_pstream,
557 "newpath\n"
558 "%d %d moveto\n"
559 "%d %d lineto\n"
560 "stroke\n",
561 LogicalToDeviceX(x), LogicalToDeviceY(y),
562 LogicalToDeviceX(x+1), LogicalToDeviceY(y) );
563
564 CalcBoundingBox( x, y );
565 }
566
567 void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int WXUNUSED(fillStyle))
568 {
569 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
570
571 if (n <= 0) return;
572
573 if (m_brush.GetStyle () != wxTRANSPARENT)
574 {
575 SetBrush( m_brush );
576
577 if ( m_pstream )
578 fprintf( m_pstream, "newpath\n" );
579
580 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
581 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
582
583 if ( m_pstream )
584 fprintf( m_pstream, "%d %d moveto\n", xx, yy );
585
586 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
587
588 for (int i = 1; i < n; i++)
589 {
590 xx = LogicalToDeviceX(points[i].x + xoffset);
591 yy = LogicalToDeviceY(points[i].y + yoffset);
592
593 if ( m_pstream )
594 fprintf( m_pstream, "%d %d lineto\n", xx, yy );
595
596 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
597 }
598
599 if ( m_pstream )
600 fprintf( m_pstream, "fill\n" );
601 }
602
603 if (m_pen.GetStyle () != wxTRANSPARENT)
604 {
605 SetPen( m_pen );
606
607 if ( m_pstream )
608 fprintf( m_pstream, "newpath\n" );
609
610 wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
611 wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
612
613 if ( m_pstream )
614 fprintf( m_pstream, "%d %d moveto\n", xx, yy );
615
616 CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
617
618 for (int i = 1; i < n; i++)
619 {
620 xx = LogicalToDeviceX(points[i].x + xoffset);
621 yy = LogicalToDeviceY(points[i].y + yoffset);
622
623 if ( m_pstream )
624 fprintf( m_pstream, "%d %d lineto\n", xx, yy );
625
626 CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
627 }
628
629 if ( m_pstream )
630 {
631 fprintf( m_pstream, "closepath\n" );
632 fprintf( m_pstream, "stroke\n" );
633 }
634 }
635 }
636
637 void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
638 {
639 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
640
641 if (m_pen.GetStyle() == wxTRANSPARENT) return;
642
643 if (n <= 0) return;
644
645 SetPen (m_pen);
646
647 int i;
648 for ( i =0; i<n ; i++ )
649 {
650 CalcBoundingBox( LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset));
651 }
652
653 if ( m_pstream )
654 {
655 fprintf( m_pstream,
656 "newpath\n"
657 "%d %d moveto\n",
658 LogicalToDeviceX(points[0].x+xoffset), LogicalToDeviceY(points[0].y+yoffset) );
659
660 for (i = 1; i < n; i++)
661 {
662 fprintf( m_pstream,
663 "%d %d lineto\n",
664 LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset) );
665 }
666
667 fprintf( m_pstream, "stroke\n" );
668 }
669 }
670
671 void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
672 {
673 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
674
675 if (m_brush.GetStyle () != wxTRANSPARENT)
676 {
677 SetBrush( m_brush );
678
679 if ( m_pstream )
680 fprintf( m_pstream,
681 "newpath\n"
682 "%d %d moveto\n"
683 "%d %d lineto\n"
684 "%d %d lineto\n"
685 "%d %d lineto\n"
686 "closepath\n"
687 "fill\n",
688 LogicalToDeviceX(x), LogicalToDeviceY(y),
689 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
690 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
691 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
692
693 CalcBoundingBox( x, y );
694 CalcBoundingBox( x + width, y + height );
695 }
696
697 if (m_pen.GetStyle () != wxTRANSPARENT)
698 {
699 SetPen (m_pen);
700
701 if ( m_pstream )
702 fprintf( m_pstream,
703 "newpath\n"
704 "%d %d moveto\n"
705 "%d %d lineto\n"
706 "%d %d lineto\n"
707 "%d %d lineto\n"
708 "closepath\n"
709 "stroke\n",
710 LogicalToDeviceX(x), LogicalToDeviceY(y),
711 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
712 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
713 LogicalToDeviceX(x), LogicalToDeviceY(y + height) );
714
715 CalcBoundingBox( x, y );
716 CalcBoundingBox( x + width, y + height );
717 }
718 }
719
720 void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
721 {
722 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
723
724 if (radius < 0.0)
725 {
726 // Now, a negative radius is interpreted to mean
727 // 'the proportion of the smallest X or Y dimension'
728 double smallest = width < height ? width : height;
729 radius = (-radius * smallest);
730 }
731
732 wxCoord rad = (wxCoord) radius;
733
734 if (m_brush.GetStyle () != wxTRANSPARENT)
735 {
736 SetBrush( m_brush );
737
738 /* Draw rectangle anticlockwise */
739 if ( m_pstream )
740 fprintf( m_pstream,
741 "newpath\n"
742 "%d %d %d 90 180 arc\n"
743 "%d %d moveto\n"
744 "%d %d %d 180 270 arc\n"
745 "%d %d lineto\n"
746 "%d %d %d 270 0 arc\n"
747 "%d %d lineto\n"
748 "%d %d %d 0 90 arc\n"
749 "%d %d lineto\n"
750 "closepath\n"
751 "fill\n",
752 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
753 LogicalToDeviceX(x), LogicalToDeviceY(y + rad),
754 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
755 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
756 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
757 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
758 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
759 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
760
761 CalcBoundingBox( x, y );
762 CalcBoundingBox( x + width, y + height );
763 }
764
765 if (m_pen.GetStyle () != wxTRANSPARENT)
766 {
767 SetPen (m_pen);
768
769 /* Draw rectangle anticlockwise */
770 if ( m_pstream )
771 fprintf( m_pstream,
772 "newpath\n"
773 "%d %d %d 90 180 arc\n"
774 "%d %d moveto\n"
775 "%d %d %d 180 270 arc\n"
776 "%d %d lineto\n"
777 "%d %d %d 270 0 arc\n"
778 "%d %d lineto\n"
779 "%d %d %d 0 90 arc\n"
780 "%d %d lineto\n"
781 "closepath\n"
782 "stroke\n",
783 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
784 LogicalToDeviceX(x), LogicalToDeviceY(y + rad),
785 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
786 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
787 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
788 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
789 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
790 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
791
792 CalcBoundingBox( x, y );
793 CalcBoundingBox( x + width, y + height );
794 }
795 }
796
797 void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
798 {
799 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
800
801 if (m_brush.GetStyle () != wxTRANSPARENT)
802 {
803 SetBrush (m_brush);
804
805 if ( m_pstream )
806 fprintf( m_pstream,
807 "newpath\n"
808 "%d %d %d %d 0 360 ellipse\n"
809 "fill\n",
810 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
811 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
812
813 CalcBoundingBox( x - width, y - height );
814 CalcBoundingBox( x + width, y + height );
815 }
816
817 if (m_pen.GetStyle () != wxTRANSPARENT)
818 {
819 SetPen (m_pen);
820
821 if ( m_pstream )
822 fprintf( m_pstream,
823 "newpath\n"
824 "%d %d %d %d 0 360 ellipse\n"
825 "stroke\n",
826 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
827 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
828
829 CalcBoundingBox( x - width, y - height );
830 CalcBoundingBox( x + width, y + height );
831 }
832 }
833
834 void wxPostScriptDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
835 {
836 DrawBitmap( icon, x, y, TRUE );
837 }
838
839 /* this has to be char, not wxChar */
840 static char hexArray[] = "0123456789ABCDEF";
841 static void LocalDecToHex( int dec, char *buf )
842 {
843 int firstDigit = (int)(dec/16.0);
844 int secondDigit = (int)(dec - (firstDigit*16.0));
845 buf[0] = hexArray[firstDigit];
846 buf[1] = hexArray[secondDigit];
847 buf[2] = 0;
848 }
849
850 void wxPostScriptDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
851 {
852 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
853
854 if (!bitmap.Ok()) return;
855
856 wxImage image = bitmap.ConvertToImage();
857
858 if (!image.Ok()) return;
859
860 wxCoord w = image.GetWidth();
861 wxCoord h = image.GetHeight();
862
863 wxCoord ww = LogicalToDeviceXRel(image.GetWidth());
864 wxCoord hh = LogicalToDeviceYRel(image.GetHeight());
865
866 wxCoord xx = LogicalToDeviceX(x);
867 wxCoord yy = LogicalToDeviceY(y + bitmap.GetHeight());
868
869 if ( m_pstream )
870 {
871 fprintf( m_pstream,
872 "/origstate save def\n"
873 "20 dict begin\n"
874 "/pix %d string def\n"
875 "/grays %d string def\n"
876 "/npixels 0 def\n"
877 "/rgbindx 0 def\n"
878 "%d %d translate\n"
879 "%d %d scale\n"
880 "%d %d 8\n"
881 "[%d 0 0 %d 0 %d]\n"
882 "{currentfile pix readhexstring pop}\n"
883 "false 3 colorimage\n",
884 w, w, xx, yy, ww, hh, w, h, w, -h, h );
885
886 for (int j = 0; j < h; j++)
887 {
888 for (int i = 0; i < w; i++)
889 {
890 char buffer[5];
891 LocalDecToHex( image.GetRed(i,j), buffer );
892 fprintf( m_pstream, buffer );
893 LocalDecToHex( image.GetGreen(i,j), buffer );
894 fprintf( m_pstream, buffer );
895 LocalDecToHex( image.GetBlue(i,j), buffer );
896 fprintf( m_pstream, buffer );
897 }
898 fprintf( m_pstream, "\n" );
899 }
900 fprintf( m_pstream, "end\n" );
901 fprintf( m_pstream, "origstate restore\n" );
902 }
903 }
904
905 void wxPostScriptDC::SetFont( const wxFont& font )
906 {
907 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
908
909 if (!font.Ok()) return;
910
911 m_font = font;
912
913 #if wxUSE_PANGO
914 #else
915 int Style = m_font.GetStyle();
916 int Weight = m_font.GetWeight();
917
918 const char *name;
919 switch (m_font.GetFamily())
920 {
921 case wxTELETYPE:
922 case wxMODERN:
923 {
924 if (Style == wxITALIC)
925 {
926 if (Weight == wxBOLD)
927 name = "/Courier-BoldOblique";
928 else
929 name = "/Courier-Oblique";
930 }
931 else
932 {
933 if (Weight == wxBOLD)
934 name = "/Courier-Bold";
935 else
936 name = "/Courier";
937 }
938 break;
939 }
940 case wxROMAN:
941 {
942 if (Style == wxITALIC)
943 {
944 if (Weight == wxBOLD)
945 name = "/Times-BoldItalic";
946 else
947 name = "/Times-Italic";
948 }
949 else
950 {
951 if (Weight == wxBOLD)
952 name = "/Times-Bold";
953 else
954 name = "/Times-Roman";
955 }
956 break;
957 }
958 case wxSCRIPT:
959 {
960 name = "/ZapfChancery-MediumItalic";
961 break;
962 }
963 case wxSWISS:
964 default:
965 {
966 if (Style == wxITALIC)
967 {
968 if (Weight == wxBOLD)
969 name = "/Helvetica-BoldOblique";
970 else
971 name = "/Helvetica-Oblique";
972 }
973 else
974 {
975 if (Weight == wxBOLD)
976 name = "/Helvetica-Bold";
977 else
978 name = "/Helvetica";
979 }
980 break;
981 }
982 }
983
984 if ( m_pstream )
985 {
986 fprintf( m_pstream, name );
987 fprintf( m_pstream, " reencodeISO def\n" );
988 fprintf( m_pstream, name );
989 fprintf( m_pstream, " findfont\n" );
990
991 char buffer[100];
992 sprintf( buffer, "%f scalefont setfont\n", LogicalToDeviceYRel(m_font.GetPointSize() * 1000) / 1000.0F);
993 // this is a hack - we must scale font size (in pts) according to m_scaleY but
994 // LogicalToDeviceYRel works with wxCoord type (int or longint). Se we first convert font size
995 // to 1/1000th of pt and then back.
996 for (int i = 0; i < 100; i++)
997 if (buffer[i] == ',') buffer[i] = '.';
998 fprintf( m_pstream, buffer );
999 }
1000 #endif
1001 }
1002
1003 void wxPostScriptDC::SetPen( const wxPen& pen )
1004 {
1005 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1006
1007 if (!pen.Ok()) return;
1008
1009 int oldStyle = m_pen.GetStyle();
1010
1011 m_pen = pen;
1012
1013 if ( m_pstream )
1014 {
1015 char buffer[100];
1016 #ifdef __WXMSW__
1017 sprintf( buffer, "%f setlinewidth\n", LogicalToDeviceXRel(1000 * m_pen.GetWidth()) / 1000.0f );
1018 #else
1019 sprintf( buffer, "%f setlinewidth\n", LogicalToDeviceXRel(1000 * m_pen.GetWidth()) / 1000.0f );
1020 #endif
1021 for (int i = 0; i < 100; i++)
1022 if (buffer[i] == ',') buffer[i] = '.';
1023 fprintf( m_pstream, buffer );
1024 }
1025
1026 /*
1027 Line style - WRONG: 2nd arg is OFFSET
1028
1029 Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1030 operator correctly. You should look-up this in the Red Book: the 2nd parame-
1031 ter is not number of values in the array of the first one, but an offset
1032 into this description of the pattern. I mean a real *offset* not index
1033 into array. I.e. If the command is [3 4] 1 setdash is used, then there
1034 will be first black line *2* units wxCoord, then space 4 units, then the
1035 pattern of *3* units black, 4 units space will be repeated.
1036 */
1037
1038 static const char *dotted = "[2 5] 2";
1039 static const char *short_dashed = "[4 4] 2";
1040 static const char *wxCoord_dashed = "[4 8] 2";
1041 static const char *dotted_dashed = "[6 6 2 6] 4";
1042
1043 const char *psdash;
1044
1045 switch (m_pen.GetStyle())
1046 {
1047 case wxDOT: psdash = dotted; break;
1048 case wxSHORT_DASH: psdash = short_dashed; break;
1049 case wxLONG_DASH: psdash = wxCoord_dashed; break;
1050 case wxDOT_DASH: psdash = dotted_dashed; break;
1051 case wxSOLID:
1052 case wxTRANSPARENT:
1053 default: psdash = "[] 0"; break;
1054 }
1055
1056 if ((oldStyle != m_pen.GetStyle()) && m_pstream )
1057 {
1058 fprintf( m_pstream, psdash );
1059 fprintf( m_pstream," setdash\n" );
1060 }
1061
1062 // Line colour
1063 unsigned char red = m_pen.GetColour().Red();
1064 unsigned char blue = m_pen.GetColour().Blue();
1065 unsigned char green = m_pen.GetColour().Green();
1066
1067 if (!m_colour)
1068 {
1069 // Anything not white is black
1070 if (! (red == (unsigned char) 255 &&
1071 blue == (unsigned char) 255 &&
1072 green == (unsigned char) 255) )
1073 {
1074 red = (unsigned char) 0;
1075 green = (unsigned char) 0;
1076 blue = (unsigned char) 0;
1077 }
1078 // setgray here ?
1079 }
1080
1081 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1082 {
1083 double redPS = (double)(red) / 255.0;
1084 double bluePS = (double)(blue) / 255.0;
1085 double greenPS = (double)(green) / 255.0;
1086
1087 char buffer[100];
1088 sprintf( buffer,
1089 "%.8f %.8f %.8f setrgbcolor\n",
1090 redPS, greenPS, bluePS );
1091 for (int i = 0; i < 100; i++)
1092 if (buffer[i] == ',') buffer[i] = '.';
1093
1094 if ( m_pstream )
1095 fprintf( m_pstream, buffer );
1096
1097 m_currentRed = red;
1098 m_currentBlue = blue;
1099 m_currentGreen = green;
1100 }
1101 }
1102
1103 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1104 {
1105 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1106
1107 if (!brush.Ok()) return;
1108
1109 m_brush = brush;
1110
1111 // Brush colour
1112 unsigned char red = m_brush.GetColour().Red();
1113 unsigned char blue = m_brush.GetColour().Blue();
1114 unsigned char green = m_brush.GetColour().Green();
1115
1116 if (!m_colour)
1117 {
1118 // Anything not white is black
1119 if (! (red == (unsigned char) 255 &&
1120 blue == (unsigned char) 255 &&
1121 green == (unsigned char) 255) )
1122 {
1123 red = (unsigned char) 0;
1124 green = (unsigned char) 0;
1125 blue = (unsigned char) 0;
1126 }
1127 // setgray here ?
1128 }
1129
1130 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1131 {
1132 double redPS = (double)(red) / 255.0;
1133 double bluePS = (double)(blue) / 255.0;
1134 double greenPS = (double)(green) / 255.0;
1135
1136 char buffer[100];
1137 sprintf( buffer,
1138 "%.8f %.8f %.8f setrgbcolor\n",
1139 redPS, greenPS, bluePS );
1140 for (int i = 0; i < 100; i++)
1141 if (buffer[i] == ',') buffer[i] = '.';
1142
1143 if ( m_pstream )
1144 fprintf( m_pstream, buffer );
1145
1146 m_currentRed = red;
1147 m_currentBlue = blue;
1148 m_currentGreen = green;
1149 }
1150 }
1151
1152 #if wxUSE_PANGO
1153
1154 #define PANGO_ENABLE_ENGINE
1155
1156 #ifdef __WXGTK20__
1157 #include "wx/gtk/private.h"
1158 #include "gtk/gtk.h"
1159 #else
1160 #include "wx/x11/private.h"
1161 #endif
1162
1163 #include "wx/fontutil.h"
1164 #include <pango/pangoft2.h>
1165 #include <freetype/ftglyph.h>
1166
1167 #ifndef FT_Outline_Decompose
1168 FT_EXPORT( FT_Error ) FT_Outline_Decompose(
1169 FT_Outline* outline,
1170 const FT_Outline_Funcs* interface,
1171 void* user );
1172 #endif
1173
1174 typedef struct _OutlineInfo OutlineInfo;
1175 struct _OutlineInfo {
1176 FILE *file;
1177 };
1178
1179 static int paps_move_to( FT_Vector* to,
1180 void *user_data)
1181 {
1182 OutlineInfo *outline_info = (OutlineInfo*)user_data;
1183 fprintf(outline_info->file, "%d %d moveto\n",
1184 (int)to->x ,
1185 (int)to->y );
1186 return 0;
1187 }
1188
1189 static int paps_line_to( FT_Vector* to,
1190 void *user_data)
1191 {
1192 OutlineInfo *outline_info = (OutlineInfo*)user_data;
1193 fprintf(outline_info->file, "%d %d lineto\n",
1194 (int)to->x ,
1195 (int)to->y );
1196 return 0;
1197 }
1198
1199 static int paps_conic_to( FT_Vector* control,
1200 FT_Vector* to,
1201 void *user_data)
1202 {
1203 OutlineInfo *outline_info = (OutlineInfo*)user_data;
1204 fprintf(outline_info->file, "%d %d %d %d conicto\n",
1205 (int)control->x ,
1206 (int)control->y ,
1207 (int)to->x ,
1208 (int)to->y );
1209 return 0;
1210 }
1211
1212 static int paps_cubic_to( FT_Vector* control1,
1213 FT_Vector* control2,
1214 FT_Vector* to,
1215 void *user_data)
1216 {
1217 OutlineInfo *outline_info = (OutlineInfo*)user_data;
1218 fprintf(outline_info->file,
1219 "%d %d %d %d %d %d curveto\n",
1220 (int)control1->x ,
1221 (int)control1->y ,
1222 (int)control2->x ,
1223 (int)control2->y ,
1224 (int)to->x ,
1225 (int)to->y );
1226 return 0;
1227 }
1228
1229 void draw_bezier_outline(FILE *file,
1230 FT_Face face,
1231 FT_UInt glyph_index,
1232 int pos_x,
1233 int pos_y,
1234 double scale_x,
1235 double scale_y )
1236 {
1237 FT_Int load_flags = FT_LOAD_NO_BITMAP;
1238 FT_Glyph glyph;
1239
1240 FT_Outline_Funcs outlinefunc =
1241 {
1242 paps_move_to,
1243 paps_line_to,
1244 paps_conic_to,
1245 paps_cubic_to
1246 };
1247
1248 OutlineInfo outline_info;
1249 outline_info.file = file;
1250
1251 fprintf(file, "gsave\n");
1252 fprintf(file, "%d %d translate\n", pos_x, pos_y );
1253
1254 // We have to replace the "," from the German
1255 // locale with the Englich "." for PostScript
1256 char buf[100];
1257 sprintf(buf, "%.8f %.8f scale\n", scale_x, scale_y );
1258 for (size_t i = 0; i < strlen(buf); i++)
1259 if (buf[i] == ',') buf[i] = '.';
1260 fprintf(file, buf);
1261
1262 FT_Load_Glyph(face, glyph_index, load_flags);
1263 FT_Get_Glyph (face->glyph, &glyph);
1264 FT_Outline_Decompose (&(((FT_OutlineGlyph)glyph)->outline),
1265 &outlinefunc, &outline_info);
1266 fprintf(file, "closepath fill grestore\n");
1267
1268 FT_Done_Glyph (glyph);
1269 }
1270
1271 #endif
1272
1273 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1274 {
1275 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1276
1277 if (m_textForegroundColour.Ok())
1278 {
1279 unsigned char red = m_textForegroundColour.Red();
1280 unsigned char blue = m_textForegroundColour.Blue();
1281 unsigned char green = m_textForegroundColour.Green();
1282
1283 if (!m_colour)
1284 {
1285 // Anything not white is black
1286 if (! (red == (unsigned char) 255 &&
1287 blue == (unsigned char) 255 &&
1288 green == (unsigned char) 255))
1289 {
1290 red = (unsigned char) 0;
1291 green = (unsigned char) 0;
1292 blue = (unsigned char) 0;
1293 }
1294 }
1295
1296 // maybe setgray here ?
1297 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1298 {
1299 double redPS = (double)(red) / 255.0;
1300 double bluePS = (double)(blue) / 255.0;
1301 double greenPS = (double)(green) / 255.0;
1302
1303 char buffer[100];
1304 sprintf( buffer,
1305 "%.8f %.8f %.8f setrgbcolor\n",
1306 redPS, greenPS, bluePS );
1307 for (size_t i = 0; i < strlen(buffer); i++)
1308 if (buffer[i] == ',') buffer[i] = '.';
1309 if ( m_pstream )
1310 fprintf( m_pstream, buffer );
1311
1312 m_currentRed = red;
1313 m_currentBlue = blue;
1314 m_currentGreen = green;
1315 }
1316 }
1317
1318 #if wxUSE_PANGO
1319 int ps_dpi = 72;
1320 int pango_dpi = 600;
1321 PangoContext *context = pango_ft2_get_context ( pango_dpi, pango_dpi );
1322
1323 double scale = (double)pango_dpi / (double)ps_dpi;
1324 scale /= m_userScaleY;
1325
1326 pango_context_set_language (context, pango_language_from_string ("en_US"));
1327 pango_context_set_base_dir (context, PANGO_DIRECTION_LTR );
1328
1329 pango_context_set_font_description (context, m_font.GetNativeFontInfo()->description );
1330
1331 PangoLayout *layout = pango_layout_new (context);
1332 #if wxUSE_UNICODE
1333 wxCharBuffer buffer = wxConvUTF8.cWC2MB( text );
1334 #else
1335 wxCharBuffer buffer = wxConvUTF8.cWC2MB( wxConvLocal.cWX2WC( text ) );
1336 #endif
1337 pango_layout_set_text( layout, (const char*) buffer, strlen(buffer) );
1338
1339 if ( m_pstream )
1340 fprintf( m_pstream, "%%%% %s\n", (const char*)buffer );
1341
1342 PangoRectangle rect;
1343 pango_layout_get_extents(layout, NULL, &rect);
1344
1345 int xx = LogicalToDeviceX( x );
1346 int yy = LogicalToDeviceY( y );
1347
1348 int xxx = xx * PANGO_SCALE;
1349 int yyy = yy * PANGO_SCALE - (int)(rect.height * 0.66 / scale); // Move down by estimated baseline. HACK.
1350
1351 #define ps_kludge_factor 2.8
1352
1353 // Loop over lines in layout
1354 int num_lines = pango_layout_get_line_count( layout );
1355 for (int i = 0; i < num_lines; i++)
1356 {
1357 PangoLayoutLine *line = pango_layout_get_line( layout, i );
1358
1359 // width of glyphs already printed
1360 int all_width = 0;
1361
1362 // Loop over runs in line
1363 GSList *runs_list = line->runs;
1364 while (runs_list)
1365 {
1366 PangoLayoutRun *run = (PangoLayoutRun*) runs_list->data;
1367 PangoItem *item = run->item;
1368 PangoGlyphString *glyphs = run->glyphs;
1369 PangoAnalysis *analysis = &item->analysis;
1370 PangoFont *font = analysis->font;
1371 FT_Face ft_face = pango_ft2_font_get_face(font);
1372
1373 int num_glyphs = glyphs->num_glyphs;
1374 for (int glyph_idx = 0; glyph_idx < num_glyphs; glyph_idx++)
1375 {
1376 PangoGlyphGeometry geometry = glyphs->glyphs[glyph_idx].geometry;
1377 int pos_x = xxx + (int)((double)(all_width+geometry.x_offset) / scale);
1378 int pos_y = yyy + (int)((double)geometry.y_offset / scale );
1379 all_width += geometry.width;
1380
1381 if ( m_pstream )
1382 draw_bezier_outline( m_pstream, ft_face,
1383 (FT_UInt)(glyphs->glyphs[glyph_idx].glyph),
1384 pos_x / PANGO_SCALE,
1385 pos_y / PANGO_SCALE,
1386 1.0/(ps_kludge_factor * scale * 26.6),
1387 1.0/(ps_kludge_factor * scale * 26.6) );
1388 }
1389 runs_list = runs_list->next;
1390 }
1391 }
1392
1393 g_object_unref( G_OBJECT( layout ) );
1394 g_object_unref( G_OBJECT( context ) );
1395 #else
1396 wxCoord text_w, text_h, text_descent;
1397
1398 GetTextExtent(text, &text_w, &text_h, &text_descent);
1399
1400 // VZ: this seems to be unnecessary, so taking it out for now, if it
1401 // doesn't create any problems, remove this comment entirely
1402 //SetFont( m_font );
1403
1404
1405 int size = m_font.GetPointSize();
1406
1407 // wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1408 // commented by V. Slavik and replaced by accurate version
1409 // - note that there is still rounding error in text_descent!
1410 wxCoord by = y + size - text_descent; // baseline
1411 if ( m_pstream )
1412 {
1413 fprintf( m_pstream, "%d %d moveto\n", LogicalToDeviceX(x), LogicalToDeviceY(by) );
1414 fprintf( m_pstream, "(" );
1415
1416 const wxWX2MBbuf textbuf = text.mb_str();
1417 size_t len = strlen(textbuf);
1418 size_t i;
1419 for (i = 0; i < len; i++)
1420 {
1421 int c = (unsigned char) textbuf[i];
1422 if (c == ')' || c == '(' || c == '\\')
1423 {
1424 /* Cope with special characters */
1425 fprintf( m_pstream, "\\" );
1426 fputc(c, m_pstream);
1427 }
1428 else if ( c >= 128 )
1429 {
1430 /* Cope with character codes > 127 */
1431 fprintf(m_pstream, "\\%o", c);
1432 }
1433 else
1434 {
1435 fputc(c, m_pstream);
1436 }
1437 }
1438
1439 fprintf( m_pstream, ") show\n" );
1440
1441 if (m_font.GetUnderlined())
1442 {
1443 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1444 char buffer[100];
1445
1446 sprintf( buffer,
1447 "gsave\n"
1448 "%d %d moveto\n"
1449 "%f setlinewidth\n"
1450 "%d %d lineto\n"
1451 "stroke\n"
1452 "grestore\n",
1453 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1454 m_underlineThickness,
1455 LogicalToDeviceX(x + text_w), LogicalToDeviceY(uy) );
1456 for (i = 0; i < 100; i++)
1457 if (buffer[i] == ',') buffer[i] = '.';
1458 fprintf( m_pstream, buffer );
1459 }
1460 }
1461
1462 CalcBoundingBox( x, y );
1463 CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1464 #endif
1465 }
1466
1467 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1468 {
1469 if (angle == 0.0)
1470 {
1471 DoDrawText(text, x, y);
1472 return;
1473 }
1474
1475 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1476
1477 SetFont( m_font );
1478
1479 if (m_textForegroundColour.Ok())
1480 {
1481 unsigned char red = m_textForegroundColour.Red();
1482 unsigned char blue = m_textForegroundColour.Blue();
1483 unsigned char green = m_textForegroundColour.Green();
1484
1485 if (!m_colour)
1486 {
1487 // Anything not white is black
1488 if (! (red == (unsigned char) 255 &&
1489 blue == (unsigned char) 255 &&
1490 green == (unsigned char) 255))
1491 {
1492 red = (unsigned char) 0;
1493 green = (unsigned char) 0;
1494 blue = (unsigned char) 0;
1495 }
1496 }
1497
1498 // maybe setgray here ?
1499 if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1500 {
1501 double redPS = (double)(red) / 255.0;
1502 double bluePS = (double)(blue) / 255.0;
1503 double greenPS = (double)(green) / 255.0;
1504
1505 char buffer[100];
1506 sprintf( buffer,
1507 "%.8f %.8f %.8f setrgbcolor\n",
1508 redPS, greenPS, bluePS );
1509 for (int i = 0; i < 100; i++)
1510 if (buffer[i] == ',') buffer[i] = '.';
1511 if ( m_pstream )
1512 fprintf( m_pstream, buffer );
1513
1514 m_currentRed = red;
1515 m_currentBlue = blue;
1516 m_currentGreen = green;
1517 }
1518 }
1519
1520 int size = m_font.GetPointSize();
1521
1522 if ( m_pstream )
1523 {
1524 fprintf(m_pstream, "%d %d moveto\n",
1525 LogicalToDeviceX(x), LogicalToDeviceY(y));
1526
1527 char buffer[100];
1528 sprintf(buffer, "%.8f rotate\n", angle);
1529 size_t i;
1530 for (i = 0; i < 100; i++)
1531 {
1532 if (buffer[i] == ',') buffer[i] = '.';
1533 }
1534 fprintf(m_pstream, buffer);
1535
1536 fprintf( m_pstream, "(" );
1537 const wxWX2MBbuf textbuf = text.mb_str();
1538 size_t len = strlen(textbuf);
1539 for (i = 0; i < len; i++)
1540 {
1541 int c = (unsigned char) textbuf[i];
1542 if (c == ')' || c == '(' || c == '\\')
1543 {
1544 /* Cope with special characters */
1545 fprintf( m_pstream, "\\" );
1546 fputc(c, m_pstream);
1547 }
1548 else if ( c >= 128 )
1549 {
1550 /* Cope with character codes > 127 */
1551 fprintf(m_pstream, "\\%o", c);
1552 }
1553 else
1554 {
1555 fputc(c, m_pstream);
1556 }
1557 }
1558
1559 fprintf( m_pstream, ") show\n" );
1560
1561 sprintf( buffer, "%.8f rotate\n", -angle );
1562 for (i = 0; i < 100; i++)
1563 {
1564 if (buffer[i] == ',') buffer[i] = '.';
1565 }
1566 fprintf( m_pstream, buffer );
1567
1568 if (m_font.GetUnderlined())
1569 {
1570 wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1571 wxCoord w, h;
1572 char buffer[100];
1573 GetTextExtent(text, &w, &h);
1574
1575 sprintf( buffer,
1576 "gsave\n"
1577 "%d %d moveto\n"
1578 "%f setlinewidth\n"
1579 "%d %d lineto\n"
1580 "stroke\n"
1581 "grestore\n",
1582 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1583 m_underlineThickness,
1584 LogicalToDeviceX(x + w), LogicalToDeviceY(uy) );
1585 for (i = 0; i < 100; i++)
1586 {
1587 if (buffer[i] == ',') buffer[i] = '.';
1588 }
1589 fprintf( m_pstream, buffer );
1590 }
1591 }
1592
1593 CalcBoundingBox( x, y );
1594 CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1595 }
1596
1597 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1598 {
1599 m_backgroundBrush = brush;
1600 }
1601
1602 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1603 {
1604 wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1605 }
1606
1607 void wxPostScriptDC::DoDrawSpline( wxList *points )
1608 {
1609 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1610
1611 SetPen( m_pen );
1612
1613 // a and b are not used
1614 //double a, b;
1615 double c, d, x1, y1, x2, y2, x3, y3;
1616 wxPoint *p, *q;
1617
1618 wxList::compatibility_iterator node = points->GetFirst();
1619 p = (wxPoint *)node->GetData();
1620 x1 = p->x;
1621 y1 = p->y;
1622
1623 node = node->GetNext();
1624 p = (wxPoint *)node->GetData();
1625 c = p->x;
1626 d = p->y;
1627 x3 =
1628 #if 0
1629 a =
1630 #endif
1631 (double)(x1 + c) / 2;
1632 y3 =
1633 #if 0
1634 b =
1635 #endif
1636 (double)(y1 + d) / 2;
1637
1638 if ( m_pstream )
1639 fprintf( m_pstream,
1640 "newpath\n"
1641 "%d %d moveto\n"
1642 "%d %d lineto\n",
1643 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1644 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1645
1646 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1647 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1648
1649 node = node->GetNext();
1650 while (node)
1651 {
1652 q = (wxPoint *)node->GetData();
1653
1654 x1 = x3;
1655 y1 = y3;
1656 x2 = c;
1657 y2 = d;
1658 c = q->x;
1659 d = q->y;
1660 x3 = (double)(x2 + c) / 2;
1661 y3 = (double)(y2 + d) / 2;
1662
1663 if ( m_pstream )
1664 fprintf( m_pstream,
1665 "%d %d %d %d %d %d DrawSplineSection\n",
1666 LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1667 LogicalToDeviceX((wxCoord)x2), LogicalToDeviceY((wxCoord)y2),
1668 LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1669
1670 CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1671 CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1672
1673 node = node->GetNext();
1674 }
1675
1676 /*
1677 At this point, (x2,y2) and (c,d) are the position of the
1678 next-to-last and last point respectively, in the point list
1679 */
1680
1681 if ( m_pstream )
1682 fprintf( m_pstream,
1683 "%d %d lineto\n"
1684 "stroke\n",
1685 LogicalToDeviceX((wxCoord)c), LogicalToDeviceY((wxCoord)d) );
1686 }
1687
1688 wxCoord wxPostScriptDC::GetCharWidth() const
1689 {
1690 // Chris Breeze: reasonable approximation using wxMODERN/Courier
1691 return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1692 }
1693
1694
1695 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1696 {
1697 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1698
1699 m_signX = (xLeftRight ? 1 : -1);
1700 m_signY = (yBottomUp ? 1 : -1);
1701
1702 // FIXME there is no such function in MSW nor in OS2/PM
1703 #if !defined(__WXMSW__) && !defined(__WXPM__)
1704 ComputeScaleAndOrigin();
1705 #endif
1706 }
1707
1708 void wxPostScriptDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1709 {
1710 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1711
1712 int h = 0;
1713 int w = 0;
1714 GetSize( &w, &h );
1715
1716 wxDC::SetDeviceOrigin( x, h-y );
1717 }
1718
1719 void wxPostScriptDC::DoGetSize(int* width, int* height) const
1720 {
1721 wxPaperSize id = m_printData.GetPaperId();
1722
1723 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1724
1725 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1726
1727 int w = 595;
1728 int h = 842;
1729 if (paper)
1730 {
1731 w = paper->GetSizeDeviceUnits().x;
1732 h = paper->GetSizeDeviceUnits().y;
1733 }
1734
1735 if (m_printData.GetOrientation() == wxLANDSCAPE)
1736 {
1737 int tmp = w;
1738 w = h;
1739 h = tmp;
1740 }
1741
1742 if (width) *width = (int)(w * ms_PSScaleFactor);
1743 if (height) *height = (int)(h * ms_PSScaleFactor);
1744 }
1745
1746 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1747 {
1748 wxPaperSize id = m_printData.GetPaperId();
1749
1750 wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1751
1752 if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1753
1754 int w = 210;
1755 int h = 297;
1756 if (paper)
1757 {
1758 w = paper->GetWidth() / 10;
1759 h = paper->GetHeight() / 10;
1760 }
1761
1762 if (m_printData.GetOrientation() == wxLANDSCAPE)
1763 {
1764 int tmp = w;
1765 w = h;
1766 h = tmp;
1767 }
1768
1769 if (width) *width = w;
1770 if (height) *height = h;
1771 }
1772
1773 // Resolution in pixels per logical inch
1774 wxSize wxPostScriptDC::GetPPI(void) const
1775 {
1776 return wxSize((int)(72 * ms_PSScaleFactor),
1777 (int)(72 * ms_PSScaleFactor));
1778 }
1779
1780
1781 bool wxPostScriptDC::StartDoc( const wxString& message )
1782 {
1783 wxCHECK_MSG( m_ok, FALSE, wxT("invalid postscript dc") );
1784
1785 if (m_printData.GetFilename() == wxT(""))
1786 {
1787 wxString filename = wxGetTempFileName( wxT("ps") );
1788 m_printData.SetFilename(filename);
1789 }
1790
1791 m_pstream = wxFopen( m_printData.GetFilename().c_str(), wxT("w+") ); // FIXME: use fn_str() here under Unicode?
1792
1793 if (!m_pstream)
1794 {
1795 wxLogError( _("Cannot open file for PostScript printing!"));
1796 m_ok = FALSE;
1797 return FALSE;
1798 }
1799
1800 m_ok = TRUE;
1801
1802 fprintf( m_pstream, "%%!PS-Adobe-2.0\n" );
1803 fprintf( m_pstream, "%%%%Title: %s\n", (const char *) m_title.ToAscii() );
1804 fprintf( m_pstream, "%%%%Creator: wxWindows PostScript renderer\n" );
1805 fprintf( m_pstream, "%%%%CreationDate: %s\n", (const char *) wxNow().ToAscii() );
1806 if (m_printData.GetOrientation() == wxLANDSCAPE)
1807 fprintf( m_pstream, "%%%%Orientation: Landscape\n" );
1808 else
1809 fprintf( m_pstream, "%%%%Orientation: Portrait\n" );
1810
1811 // fprintf( m_pstream, "%%%%Pages: %d\n", (wxPageNumber - 1) );
1812
1813 const char *paper;
1814 switch (m_printData.GetPaperId())
1815 {
1816 case wxPAPER_LETTER: paper = "Letter"; break; // Letter: paper ""; 8 1/2 by 11 inches
1817 case wxPAPER_LEGAL: paper = "Legal"; break; // Legal, 8 1/2 by 14 inches
1818 case wxPAPER_A4: paper = "A4"; break; // A4 Sheet, 210 by 297 millimeters
1819 case wxPAPER_TABLOID: paper = "Tabloid"; break; // Tabloid, 11 by 17 inches
1820 case wxPAPER_LEDGER: paper = "Ledger"; break; // Ledger, 17 by 11 inches
1821 case wxPAPER_STATEMENT: paper = "Statement"; break; // Statement, 5 1/2 by 8 1/2 inches
1822 case wxPAPER_EXECUTIVE: paper = "Executive"; break; // Executive, 7 1/4 by 10 1/2 inches
1823 case wxPAPER_A3: paper = "A3"; break; // A3 sheet, 297 by 420 millimeters
1824 case wxPAPER_A5: paper = "A5"; break; // A5 sheet, 148 by 210 millimeters
1825 case wxPAPER_B4: paper = "B4"; break; // B4 sheet, 250 by 354 millimeters
1826 case wxPAPER_B5: paper = "B5"; break; // B5 sheet, 182-by-257-millimeter paper
1827 case wxPAPER_FOLIO: paper = "Folio"; break; // Folio, 8-1/2-by-13-inch paper
1828 case wxPAPER_QUARTO: paper = "Quaro"; break; // Quarto, 215-by-275-millimeter paper
1829 case wxPAPER_10X14: paper = "10x14"; break; // 10-by-14-inch sheet
1830 default: paper = "A4";
1831 }
1832 fprintf( m_pstream, "%%%%DocumentPaperSizes: %s\n", paper );
1833 fprintf( m_pstream, "%%%%EndComments\n\n" );
1834
1835 fprintf( m_pstream, "%%%%BeginProlog\n" );
1836 fprintf( m_pstream, wxPostScriptHeaderConicTo );
1837 fprintf( m_pstream, wxPostScriptHeaderEllipse );
1838 fprintf( m_pstream, wxPostScriptHeaderEllipticArc );
1839 fprintf( m_pstream, wxPostScriptHeaderColourImage );
1840 #if wxUSE_PANGO
1841 #else
1842 fprintf( m_pstream, wxPostScriptHeaderReencodeISO1 );
1843 fprintf( m_pstream, wxPostScriptHeaderReencodeISO2 );
1844 #endif
1845 if (wxPostScriptHeaderSpline)
1846 fprintf( m_pstream, wxPostScriptHeaderSpline );
1847 fprintf( m_pstream, "%%%%EndProlog\n" );
1848
1849 SetBrush( *wxBLACK_BRUSH );
1850 SetPen( *wxBLACK_PEN );
1851 SetBackground( *wxWHITE_BRUSH );
1852 SetTextForeground( *wxBLACK );
1853
1854 // set origin according to paper size
1855 SetDeviceOrigin( 0,0 );
1856
1857 wxPageNumber = 1;
1858 m_pageNumber = 1;
1859 m_title = message;
1860 return TRUE;
1861 }
1862
1863 void wxPostScriptDC::EndDoc ()
1864 {
1865 wxCHECK_RET( m_ok && m_pstream, wxT("invalid postscript dc") );
1866
1867 if (m_clipping)
1868 {
1869 m_clipping = FALSE;
1870 fprintf( m_pstream, "grestore\n" );
1871 }
1872
1873 fclose( m_pstream );
1874 m_pstream = (FILE *) NULL;
1875
1876 #if 0
1877 // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1878 wxCoord wx_printer_translate_x, wx_printer_translate_y;
1879 double wx_printer_scale_x, wx_printer_scale_y;
1880
1881 wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1882 wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1883
1884 wx_printer_scale_x = m_printData.GetPrinterScaleX();
1885 wx_printer_scale_y = m_printData.GetPrinterScaleY();
1886
1887 // Compute the bounding box. Note that it is in the default user
1888 // coordinate system, thus we have to convert the values.
1889 wxCoord minX = (wxCoord) LogicalToDeviceX(m_minX);
1890 wxCoord minY = (wxCoord) LogicalToDeviceY(m_minY);
1891 wxCoord maxX = (wxCoord) LogicalToDeviceX(m_maxX);
1892 wxCoord maxY = (wxCoord) LogicalToDeviceY(m_maxY);
1893
1894 // LOG2DEV may have changed the minimum to maximum vice versa
1895 if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1896 if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1897
1898 // account for used scaling (boundingbox is before scaling in ps-file)
1899 double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1900 double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1901
1902 wxCoord llx, lly, urx, ury;
1903 llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1904 lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1905 urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1906 ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1907 // (end of bounding box computation)
1908
1909
1910 // If we're landscape, our sense of "x" and "y" is reversed.
1911 if (m_printData.GetOrientation() == wxLANDSCAPE)
1912 {
1913 wxCoord tmp;
1914 tmp = llx; llx = lly; lly = tmp;
1915 tmp = urx; urx = ury; ury = tmp;
1916
1917 // We need either the two lines that follow, or we need to subtract
1918 // min_x from real_translate_y, which is commented out below.
1919 llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1920 urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1921 }
1922
1923 // The Adobe specifications call for integers; we round as to make
1924 // the bounding larger.
1925 fprintf( m_pstream,
1926 "%%%%BoundingBox: %d %d %d %d\n",
1927 (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1928 (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1929
1930 // To check the correctness of the bounding box, postscript commands
1931 // to draw a box corresponding to the bounding box are generated below.
1932 // But since we typically don't want to print such a box, the postscript
1933 // commands are generated within comments. These lines appear before any
1934 // adjustment of scale, rotation, or translation, and hence are in the
1935 // default user coordinates.
1936 fprintf( m_pstream, "%% newpath\n" );
1937 fprintf( m_pstream, "%% %d %d moveto\n", llx, lly );
1938 fprintf( m_pstream, "%% %d %d lineto\n", urx, lly );
1939 fprintf( m_pstream, "%% %d %d lineto\n", urx, ury );
1940 fprintf( m_pstream, "%% %d %d lineto closepath stroke\n", llx, ury );
1941 #endif
1942
1943 #if defined(__X__) || defined(__WXGTK__)
1944 if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1945 {
1946 wxString command;
1947 command += m_printData.GetPrinterCommand();
1948 command += wxT(" ");
1949 command += m_printData.GetPrinterOptions();
1950 command += wxT(" ");
1951 command += m_printData.GetFilename();
1952
1953 wxExecute( command, TRUE );
1954 wxRemoveFile( m_printData.GetFilename() );
1955 }
1956 #endif
1957 }
1958
1959 void wxPostScriptDC::StartPage()
1960 {
1961 wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1962
1963 if ( m_pstream )
1964 fprintf( m_pstream, "%%%%Page: %d\n", wxPageNumber++ );
1965
1966 // What is this one supposed to do? RR.
1967 // *m_pstream << "matrix currentmatrix\n";
1968
1969 // Added by Chris Breeze
1970
1971 // Each page starts with an "initgraphics" which resets the
1972 // transformation and so we need to reset the origin
1973 // (and rotate the page for landscape printing)
1974
1975 // Output scaling
1976 wxCoord translate_x, translate_y;
1977 double scale_x, scale_y;
1978
1979 translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1980 translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1981
1982 scale_x = m_printData.GetPrinterScaleX();
1983 scale_y = m_printData.GetPrinterScaleY();
1984
1985 if (m_printData.GetOrientation() == wxLANDSCAPE)
1986 {
1987 int h;
1988 GetSize( (int*) NULL, &h );
1989 translate_y -= h;
1990 if ( m_pstream )
1991 {
1992 fprintf( m_pstream, "90 rotate\n" );
1993
1994 // I copied this one from a PostScript tutorial, but to no avail. RR.
1995 // fprintf( m_pstream, "90 rotate llx neg ury nef translate\n" );
1996 }
1997 }
1998
1999 if ( m_pstream )
2000 {
2001 char buffer[100];
2002 sprintf( buffer, "%.8f %.8f scale\n", scale_x / ms_PSScaleFactor,
2003 scale_y / ms_PSScaleFactor);
2004 for (int i = 0; i < 100; i++)
2005 if (buffer[i] == ',') buffer[i] = '.';
2006 fprintf( m_pstream, buffer );
2007
2008 fprintf( m_pstream, "%d %d translate\n", translate_x, translate_y );
2009 }
2010 }
2011
2012 void wxPostScriptDC::EndPage ()
2013 {
2014 wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
2015
2016 if ( m_pstream )
2017 fprintf( m_pstream, "showpage\n" );
2018 }
2019
2020 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
2021 wxCoord fwidth, wxCoord fheight,
2022 wxDC *source,
2023 wxCoord xsrc, wxCoord ysrc,
2024 int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
2025 {
2026 wxCHECK_MSG( m_ok, FALSE, wxT("invalid postscript dc") );
2027
2028 wxCHECK_MSG( source, FALSE, wxT("invalid source dc") );
2029
2030 /* blit into a bitmap */
2031 wxBitmap bitmap( (int)fwidth, (int)fheight );
2032 wxMemoryDC memDC;
2033 memDC.SelectObject(bitmap);
2034 memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
2035 memDC.SelectObject(wxNullBitmap);
2036
2037 /* draw bitmap. scaling and positioning is done there */
2038 DrawBitmap( bitmap, xdest, ydest );
2039
2040 return TRUE;
2041 }
2042
2043 wxCoord wxPostScriptDC::GetCharHeight() const
2044 {
2045 if (m_font.Ok())
2046 return m_font.GetPointSize();
2047 else
2048 return 12;
2049 }
2050
2051 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
2052 wxCoord *x, wxCoord *y,
2053 wxCoord *descent, wxCoord *externalLeading,
2054 wxFont *theFont ) const
2055 {
2056 wxFont *fontToUse = theFont;
2057
2058 if (!fontToUse) fontToUse = (wxFont*) &m_font;
2059
2060 wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
2061
2062 if (string.IsEmpty())
2063 {
2064 if (x) (*x) = 0;
2065 if (y) (*y) = 0;
2066 if (descent) (*descent) = 0;
2067 if (externalLeading) (*externalLeading) = 0;
2068 return;
2069 }
2070
2071 #if wxUSE_PANGO
2072 int wx_dpi = GetResolution();
2073 int pango_dpi = 600;
2074 PangoContext *context = pango_ft2_get_context ( pango_dpi, pango_dpi );
2075
2076 double scale = pango_dpi / wx_dpi;
2077 scale /= m_userScaleY;
2078
2079 pango_context_set_language (context, pango_language_from_string ("en_US"));
2080 pango_context_set_base_dir (context, PANGO_DIRECTION_LTR );
2081
2082 PangoLayout *layout = pango_layout_new (context);
2083
2084 PangoFontDescription *desc = fontToUse->GetNativeFontInfo()->description;
2085 pango_layout_set_font_description(layout, desc);
2086 #if wxUSE_UNICODE
2087 const wxCharBuffer data = wxConvUTF8.cWC2MB( string );
2088 #else
2089 const wxWCharBuffer wdata = wxConvLocal.cMB2WC( string );
2090 const wxCharBuffer data = wxConvUTF8.cWC2MB( wdata );
2091 #endif
2092 pango_layout_set_text(layout, (const char*) data, strlen( (const char*) data ));
2093 PangoLayoutLine *line = (PangoLayoutLine *)pango_layout_get_lines(layout)->data;
2094
2095 PangoRectangle rect;
2096 pango_layout_line_get_extents(line, NULL, &rect);
2097
2098 if (x) (*x) = (wxCoord) ( rect.width / PANGO_SCALE / scale );
2099 if (y) (*y) = (wxCoord) ( rect.height / PANGO_SCALE / scale );
2100 if (descent)
2101 {
2102 // Do something about metrics here
2103 (*descent) = 0;
2104 }
2105 if (externalLeading) (*externalLeading) = 0; // ??
2106
2107 g_object_unref( G_OBJECT( layout ) );
2108 #else
2109 // GTK 2.0
2110
2111 const wxWX2MBbuf strbuf = string.mb_str();
2112
2113 #if !wxUSE_AFM_FOR_POSTSCRIPT
2114 /* Provide a VERY rough estimate (avoid using it).
2115 * Produces accurate results for mono-spaced font
2116 * such as Courier (aka wxMODERN) */
2117
2118 int height = 12;
2119 if (fontToUse)
2120 {
2121 height = fontToUse->GetPointSize();
2122 }
2123 if ( x )
2124 *x = strlen (strbuf) * height * 72 / 120;
2125 if ( y )
2126 *y = (wxCoord) (height * 1.32); /* allow for descender */
2127 if (descent) *descent = 0;
2128 if (externalLeading) *externalLeading = 0;
2129 #else
2130
2131 /* method for calculating string widths in postscript:
2132 / read in the AFM (adobe font metrics) file for the
2133 / actual font, parse it and extract the character widths
2134 / and also the descender. this may be improved, but for now
2135 / it works well. the AFM file is only read in if the
2136 / font is changed. this may be chached in the future.
2137 / calls to GetTextExtent with the font unchanged are rather
2138 / efficient!!!
2139 /
2140 / for each font and style used there is an AFM file necessary.
2141 / currently i have only files for the roman font family.
2142 / I try to get files for the other ones!
2143 /
2144 / CAVE: the size of the string is currently always calculated
2145 / in 'points' (1/72 of an inch). this should later on be
2146 / changed to depend on the mapping mode.
2147 / CAVE: the path to the AFM files must be set before calling this
2148 / function. this is usually done by a call like the following:
2149 / wxSetAFMPath("d:\\wxw161\\afm\\");
2150 /
2151 / example:
2152 /
2153 / wxPostScriptDC dc(NULL, TRUE);
2154 / if (dc.Ok()){
2155 / wxSetAFMPath("d:\\wxw161\\afm\\");
2156 / dc.StartDoc("Test");
2157 / dc.StartPage();
2158 / wxCoord w,h;
2159 / dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
2160 / dc.GetTextExtent("Hallo",&w,&h);
2161 / dc.EndPage();
2162 / dc.EndDoc();
2163 / }
2164 /
2165 / by steve (stefan.hammes@urz.uni-heidelberg.de)
2166 / created: 10.09.94
2167 / updated: 14.05.95 */
2168
2169 /* these static vars are for storing the state between calls */
2170 static int lastFamily= INT_MIN;
2171 static int lastSize= INT_MIN;
2172 static int lastStyle= INT_MIN;
2173 static int lastWeight= INT_MIN;
2174 static int lastDescender = INT_MIN;
2175 static int lastWidths[256]; /* widths of the characters */
2176
2177 double UnderlinePosition = 0.0;
2178 double UnderlineThickness = 0.0;
2179
2180 // Get actual parameters
2181 int Family = fontToUse->GetFamily();
2182 int Size = fontToUse->GetPointSize();
2183 int Style = fontToUse->GetStyle();
2184 int Weight = fontToUse->GetWeight();
2185
2186 // If we have another font, read the font-metrics
2187 if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
2188 {
2189 // Store actual values
2190 lastFamily = Family;
2191 lastSize = Size;
2192 lastStyle = Style;
2193 lastWeight = Weight;
2194
2195 const wxChar *name;
2196
2197 switch (Family)
2198 {
2199 case wxMODERN:
2200 case wxTELETYPE:
2201 {
2202 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
2203 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
2204 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
2205 else name = wxT("Cour.afm");
2206 break;
2207 }
2208 case wxROMAN:
2209 {
2210 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
2211 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
2212 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
2213 else name = wxT("TimesRo.afm");
2214 break;
2215 }
2216 case wxSCRIPT:
2217 {
2218 name = wxT("Zapf.afm");
2219 break;
2220 }
2221 case wxSWISS:
2222 default:
2223 {
2224 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
2225 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
2226 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
2227 else name = wxT("Helv.afm");
2228 break;
2229 }
2230 }
2231
2232 FILE *afmFile = NULL;
2233
2234 // Get the directory of the AFM files
2235 wxString afmName;
2236 if (!m_printData.GetFontMetricPath().IsEmpty())
2237 {
2238 afmName = m_printData.GetFontMetricPath();
2239 afmName << wxFILE_SEP_PATH << name;
2240 afmFile = wxFopen(afmName,wxT("r"));
2241 }
2242
2243 #if defined(__UNIX__) && !defined(__VMS__)
2244 if (afmFile==NULL)
2245 {
2246 afmName = wxGetDataDir();
2247 afmName << wxFILE_SEP_PATH
2248 #if defined(__LINUX__) || defined(__FREEBSD__)
2249 << wxT("gs_afm") << wxFILE_SEP_PATH
2250 #else
2251 << wxT("afm") << wxFILE_SEP_PATH
2252 #endif
2253 << name;
2254 afmFile = wxFopen(afmName,wxT("r"));
2255 }
2256 #endif
2257
2258 /* 2. open and process the file
2259 / a short explanation of the AFM format:
2260 / we have for each character a line, which gives its size
2261 / e.g.:
2262 /
2263 / C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2264 /
2265 / that means, we have a character with ascii code 63, and width
2266 / (444/1000 * fontSize) points.
2267 / the other data is ignored for now!
2268 /
2269 / when the font has changed, we read in the right AFM file and store the
2270 / character widths in an array, which is processed below (see point 3.). */
2271 if (afmFile==NULL)
2272 {
2273 wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2274 wxLogDebug( wxT(" using approximate values"));
2275 for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2276 lastDescender = -150; /* dito. */
2277 }
2278 else
2279 {
2280 /* init the widths array */
2281 for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2282 /* some variables for holding parts of a line */
2283 char cString[10],semiString[10],WXString[10],descString[20];
2284 char upString[30], utString[30], encString[50];
2285 char line[256];
2286 int ascii,cWidth;
2287 /* read in the file and parse it */
2288 while(fgets(line,sizeof(line),afmFile)!=NULL)
2289 {
2290 /* A.) check for descender definition */
2291 if (strncmp(line,"Descender",9)==0)
2292 {
2293 if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2294 (strcmp(descString,"Descender")!=0))
2295 {
2296 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2297 }
2298 }
2299 /* JC 1.) check for UnderlinePosition */
2300 else if(strncmp(line,"UnderlinePosition",17)==0)
2301 {
2302 if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2303 (strcmp(upString,"UnderlinePosition")!=0))
2304 {
2305 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2306 }
2307 }
2308 /* JC 2.) check for UnderlineThickness */
2309 else if(strncmp(line,"UnderlineThickness",18)==0)
2310 {
2311 if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2312 (strcmp(utString,"UnderlineThickness")!=0))
2313 {
2314 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2315 }
2316 }
2317 /* JC 3.) check for EncodingScheme */
2318 else if(strncmp(line,"EncodingScheme",14)==0)
2319 {
2320 if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2321 (strcmp(utString,"EncodingScheme")!=0))
2322 {
2323 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2324 }
2325 else if (strncmp(encString, "AdobeStandardEncoding", 21))
2326 {
2327 wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2328 afmName.c_str(),line, encString);
2329 }
2330 }
2331 /* B.) check for char-width */
2332 else if(strncmp(line,"C ",2)==0)
2333 {
2334 if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2335 {
2336 wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2337 }
2338 if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2339 {
2340 wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2341 }
2342 /* printf(" char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2343 if (ascii>=0 && ascii<256)
2344 {
2345 lastWidths[ascii] = cWidth; /* store width */
2346 }
2347 else
2348 {
2349 /* MATTHEW: this happens a lot; don't print an error */
2350 /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2351 }
2352 }
2353 /* C.) ignore other entries. */
2354 }
2355 fclose(afmFile);
2356 }
2357 /* hack to compute correct values for german 'Umlaute'
2358 / the correct way would be to map the character names
2359 / like 'adieresis' to corresp. positions of ISOEnc and read
2360 / these values from AFM files, too. Maybe later ... */
2361
2362 // NB: casts to int are needed to suppress gcc 3.3 warnings
2363 lastWidths[196] = lastWidths[(int)'A']; // Ä
2364 lastWidths[228] = lastWidths[(int)'a']; // ä
2365 lastWidths[214] = lastWidths[(int)'O']; // Ö
2366 lastWidths[246] = lastWidths[(int)'o']; // ö
2367 lastWidths[220] = lastWidths[(int)'U']; // Ü
2368 lastWidths[252] = lastWidths[(int)'u']; // ü
2369 lastWidths[223] = lastWidths[(int)251]; // ß
2370
2371 /* JC: calculate UnderlineThickness/UnderlinePosition */
2372
2373 // VS: dirty, but is there any better solution?
2374 double *pt;
2375 pt = (double*) &m_underlinePosition;
2376 *pt = LogicalToDeviceYRel((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2377 pt = (double*) &m_underlineThickness;
2378 *pt = LogicalToDeviceYRel((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2379
2380 }
2381
2382
2383 /* 3. now the font metrics are read in, calc size this
2384 / is done by adding the widths of the characters in the
2385 / string. they are given in 1/1000 of the size! */
2386
2387 long sum=0;
2388 wxCoord height=Size; /* by default */
2389 unsigned char *p;
2390 for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2391 {
2392 if(lastWidths[*p]== INT_MIN)
2393 {
2394 wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2395 sum += lastWidths[(unsigned char)' ']; /* assume space */
2396 }
2397 else
2398 {
2399 sum += lastWidths[*p];
2400 }
2401 }
2402
2403 double widthSum = sum;
2404 widthSum *= Size;
2405 widthSum /= 1000.0F;
2406
2407 /* add descender to height (it is usually a negative value) */
2408 //if (lastDescender != INT_MIN)
2409 //{
2410 // height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2411 //}
2412 // - commented by V. Slavik - height already contains descender in it
2413 // (judging from few experiments)
2414
2415 /* return size values */
2416 if ( x )
2417 *x = (wxCoord)widthSum;
2418 if ( y )
2419 *y = height;
2420
2421 /* return other parameters */
2422 if (descent)
2423 {
2424 if(lastDescender!=INT_MIN)
2425 {
2426 *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2427 }
2428 else
2429 {
2430 *descent = 0;
2431 }
2432 }
2433
2434 /* currently no idea how to calculate this! */
2435 if (externalLeading) *externalLeading = 0;
2436 #endif
2437 // Use AFM
2438
2439 #endif
2440 // GTK 2.0
2441 }
2442
2443 #if WXWIN_COMPATIBILITY_2_2
2444 WXDLLEXPORT wxPrintSetupData *wxThePrintSetupData = 0;
2445
2446 void wxInitializePrintSetupData(bool init)
2447 {
2448 if (init)
2449 {
2450 // gets initialized in the constructor
2451 wxThePrintSetupData = new wxPrintSetupData;
2452 }
2453 else
2454 {
2455 delete wxThePrintSetupData;
2456
2457 wxThePrintSetupData = (wxPrintSetupData *) NULL;
2458 }
2459 }
2460
2461 // A module to allow initialization/cleanup of PostScript-related
2462 // things without calling these functions from app.cpp.
2463
2464 class WXDLLEXPORT wxPostScriptModule: public wxModule
2465 {
2466 DECLARE_DYNAMIC_CLASS(wxPostScriptModule)
2467 public:
2468 wxPostScriptModule() {}
2469 bool OnInit();
2470 void OnExit();
2471 };
2472
2473 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptModule, wxModule)
2474
2475 bool wxPostScriptModule::OnInit()
2476 {
2477 wxInitializePrintSetupData();
2478
2479 return TRUE;
2480 }
2481
2482 void wxPostScriptModule::OnExit()
2483 {
2484 wxInitializePrintSetupData(FALSE);
2485 }
2486 #endif
2487 // WXWIN_COMPATIBILITY_2_2
2488
2489 #endif
2490 // wxUSE_POSTSCRIPT
2491
2492 #endif
2493 // wxUSE_PRINTING_ARCHITECTURE
2494
2495
2496 // vi:sts=4:sw=4:et
wxWidgets (Impactor)