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 #ifndef WX_PRECOMP
  19 #endif // WX_PRECOMP
  20
  21 #if wxUSE_PRINTING_ARCHITECTURE
  22
  23 #if wxUSE_POSTSCRIPT
  24
  25 #include "wx/setup.h"
  26
  27 #include "wx/dcmemory.h"
  28 #include "wx/utils.h"
  29 #include "wx/intl.h"
  30 #include "wx/app.h"
  31 #include "wx/image.h"
  32 #include "wx/log.h"
  33 #include "wx/generic/dcpsg.h"
  34 #include "wx/prntbase.h"
  35 #include "wx/generic/prntdlgg.h"
  36 #include "wx/paper.h"
  37 #include "wx/filefn.h"
  38 #include "wx/math.h"
  39 #include "wx/stdpaths.h"
  40
  41 #ifdef __WXMSW__
  42
  43 #ifdef DrawText
  44 #undef DrawText
  45 #endif
  46
  47 #ifdef StartDoc
  48 #undef StartDoc
  49 #endif
  50
  51 #ifdef GetCharWidth
  52 #undef GetCharWidth
  53 #endif
  54
  55 #ifdef FindWindow
  56 #undef FindWindow
  57 #endif
  58
  59 #endif
  60
  61 //-----------------------------------------------------------------------------
  62 // start and end of document/page
  63 //-----------------------------------------------------------------------------
  64
  65 static const char *wxPostScriptHeaderConicTo = "\
  66 /conicto {\n\
  67     /to_y exch def\n\
  68     /to_x exch def\n\
  69     /conic_cntrl_y exch def\n\
  70     /conic_cntrl_x exch def\n\
  71     currentpoint\n\
  72     /p0_y exch def\n\
  73     /p0_x exch def\n\
  74     /p1_x p0_x conic_cntrl_x p0_x sub 2 3 div mul add def\n\
  75     /p1_y p0_y conic_cntrl_y p0_y sub 2 3 div mul add def\n\
  76     /p2_x p1_x to_x p0_x sub 1 3 div mul add def\n\
  77     /p2_y p1_y to_y p0_y sub 1 3 div mul add def\n\
  78     p1_x p1_y p2_x p2_y to_x to_y curveto\n\
  79 }  bind def\n\
  80 ";
  81
  82 static const char *wxPostScriptHeaderEllipse = "\
  83 /ellipsedict 8 dict def\n\
  84 ellipsedict /mtrx matrix put\n\
  85 /ellipse {\n\
  86     ellipsedict begin\n\
  87     /endangle exch def\n\
  88     /startangle exch def\n\
  89     /yrad exch def\n\
  90     /xrad exch def\n\
  91     /y exch def\n\
  92     /x exch def\n\
  93     /savematrix mtrx currentmatrix def\n\
  94     x y translate\n\
  95     xrad yrad scale\n\
  96     0 0 1 startangle endangle arc\n\
  97     savematrix setmatrix\n\
  98     end\n\
  99     } def\n\
 100 ";
 101
 102 static const char *wxPostScriptHeaderEllipticArc= "\
 103 /ellipticarcdict 8 dict def\n\
 104 ellipticarcdict /mtrx matrix put\n\
 105 /ellipticarc\n\
 106 { ellipticarcdict begin\n\
 107   /do_fill exch def\n\
 108   /endangle exch def\n\
 109   /startangle exch def\n\
 110   /yrad exch def\n\
 111   /xrad exch def \n\
 112   /y exch def\n\
 113   /x exch def\n\
 114   /savematrix mtrx currentmatrix def\n\
 115   x y translate\n\
 116   xrad yrad scale\n\
 117   do_fill { 0 0 moveto } if\n\
 118   0 0 1 startangle endangle arc\n\
 119   savematrix setmatrix\n\
 120   do_fill { fill }{ stroke } ifelse\n\
 121   end\n\
 122 } def\n";
 123
 124 static const char *wxPostScriptHeaderSpline = "\
 125 /DrawSplineSection {\n\
 126     /y3 exch def\n\
 127     /x3 exch def\n\
 128     /y2 exch def\n\
 129     /x2 exch def\n\
 130     /y1 exch def\n\
 131     /x1 exch def\n\
 132     /xa x1 x2 x1 sub 0.666667 mul add def\n\
 133     /ya y1 y2 y1 sub 0.666667 mul add def\n\
 134     /xb x3 x2 x3 sub 0.666667 mul add def\n\
 135     /yb y3 y2 y3 sub 0.666667 mul add def\n\
 136     x1 y1 lineto\n\
 137     xa ya xb yb x3 y3 curveto\n\
 138     } def\n\
 139 ";
 140
 141 static const char *wxPostScriptHeaderColourImage = "\
 142 % define 'colorimage' if it isn't defined\n\
 143 %   ('colortogray' and 'mergeprocs' come from xwd2ps\n\
 144 %     via xgrab)\n\
 145 /colorimage where   % do we know about 'colorimage'?\n\
 146   { pop }           % yes: pop off the 'dict' returned\n\
 147   {                 % no:  define one\n\
 148     /colortogray {  % define an RGB->I function\n\
 149       /rgbdata exch store    % call input 'rgbdata'\n\
 150       rgbdata length 3 idiv\n\
 151       /npixls exch store\n\
 152       /rgbindx 0 store\n\
 153       0 1 npixls 1 sub {\n\
 154         grays exch\n\
 155         rgbdata rgbindx       get 20 mul    % Red\n\
 156         rgbdata rgbindx 1 add get 32 mul    % Green\n\
 157         rgbdata rgbindx 2 add get 12 mul    % Blue\n\
 158         add add 64 idiv      % I = .5G + .31R + .18B\n\
 159         put\n\
 160         /rgbindx rgbindx 3 add store\n\
 161       } for\n\
 162       grays 0 npixls getinterval\n\
 163     } bind def\n\
 164 \n\
 165     % Utility procedure for colorimage operator.\n\
 166     % This procedure takes two procedures off the\n\
 167     % stack and merges them into a single procedure.\n\
 168 \n\
 169     /mergeprocs { % def\n\
 170       dup length\n\
 171       3 -1 roll\n\
 172       dup\n\
 173       length\n\
 174       dup\n\
 175       5 1 roll\n\
 176       3 -1 roll\n\
 177       add\n\
 178       array cvx\n\
 179       dup\n\
 180       3 -1 roll\n\
 181       0 exch\n\
 182       putinterval\n\
 183       dup\n\
 184       4 2 roll\n\
 185       putinterval\n\
 186     } bind def\n\
 187 \n\
 188     /colorimage { % def\n\
 189       pop pop     % remove 'false 3' operands\n\
 190       {colortogray} mergeprocs\n\
 191       image\n\
 192     } bind def\n\
 193   } ifelse          % end of 'false' case\n\
 194 ";
 195
 196 static char wxPostScriptHeaderReencodeISO1[] =
 197     "\n/reencodeISO {\n"
 198 "dup dup findfont dup length dict begin\n"
 199 "{ 1 index /FID ne { def }{ pop pop } ifelse } forall\n"
 200 "/Encoding ISOLatin1Encoding def\n"
 201 "currentdict end definefont\n"
 202 "} def\n"
 203 "/ISOLatin1Encoding [\n"
 204 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 205 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 206 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 207 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 208 "/space/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright\n"
 209 "/parenleft/parenright/asterisk/plus/comma/minus/period/slash\n"
 210 "/zero/one/two/three/four/five/six/seven/eight/nine/colon/semicolon\n"
 211 "/less/equal/greater/question/at/A/B/C/D/E/F/G/H/I/J/K/L/M/N\n"
 212 "/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash/bracketright\n"
 213 "/asciicircum/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m\n"
 214 "/n/o/p/q/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/asciitilde\n"
 215 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 216 "/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef\n"
 217 "/.notdef/dotlessi/grave/acute/circumflex/tilde/macron/breve\n"
 218 "/dotaccent/dieresis/.notdef/ring/cedilla/.notdef/hungarumlaut\n";
 219
 220 static char wxPostScriptHeaderReencodeISO2[] =
 221 "/ogonek/caron/space/exclamdown/cent/sterling/currency/yen/brokenbar\n"
 222 "/section/dieresis/copyright/ordfeminine/guillemotleft/logicalnot\n"
 223 "/hyphen/registered/macron/degree/plusminus/twosuperior/threesuperior\n"
 224 "/acute/mu/paragraph/periodcentered/cedilla/onesuperior/ordmasculine\n"
 225 "/guillemotright/onequarter/onehalf/threequarters/questiondown\n"
 226 "/Agrave/Aacute/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla\n"
 227 "/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute/Icircumflex\n"
 228 "/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis\n"
 229 "/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute\n"
 230 "/Thorn/germandbls/agrave/aacute/acircumflex/atilde/adieresis\n"
 231 "/aring/ae/ccedilla/egrave/eacute/ecircumflex/edieresis/igrave\n"
 232 "/iacute/icircumflex/idieresis/eth/ntilde/ograve/oacute/ocircumflex\n"
 233 "/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex/udieresis\n"
 234 "/yacute/thorn/ydieresis\n"
 235         "] def\n\n";
 236
 237 //-------------------------------------------------------------------------------
 238 // wxPostScriptDC
 239 //-------------------------------------------------------------------------------
 240
 241 IMPLEMENT_DYNAMIC_CLASS(wxPostScriptDC, wxDC)
 242
 243 float wxPostScriptDC::ms_PSScaleFactor = 1.0;
 244
 245 void wxPostScriptDC::SetResolution(int ppi)
 246 {
 247     ms_PSScaleFactor = (float)ppi / 72.0;
 248 }
 249
 250 int wxPostScriptDC::GetResolution()
 251 {
 252     return (int)(ms_PSScaleFactor * 72.0);
 253 }
 254
 255 //-------------------------------------------------------------------------------
 256
 257 wxPostScriptDC::wxPostScriptDC ()
 258 {
 259     m_pstream = (FILE*) NULL;
 260
 261     m_currentRed = 0;
 262     m_currentGreen = 0;
 263     m_currentBlue = 0;
 264
 265     m_pageNumber = 0;
 266
 267     m_clipping = false;
 268
 269     m_underlinePosition = 0.0;
 270     m_underlineThickness = 0.0;
 271
 272     m_signX =  1;  // default x-axis left to right
 273     m_signY = -1;  // default y-axis bottom up -> top down
 274 }
 275
 276 wxPostScriptDC::wxPostScriptDC (const wxPrintData& printData)
 277 {
 278     m_pstream = (FILE*) NULL;
 279
 280     m_currentRed = 0;
 281     m_currentGreen = 0;
 282     m_currentBlue = 0;
 283
 284     m_pageNumber = 0;
 285
 286     m_clipping = false;
 287
 288     m_underlinePosition = 0.0;
 289     m_underlineThickness = 0.0;
 290
 291     m_signX =  1;  // default x-axis left to right
 292     m_signY = -1;  // default y-axis bottom up -> top down
 293
 294     m_printData = printData;
 295
 296     m_ok = true;
 297 }
 298
 299 wxPostScriptDC::~wxPostScriptDC ()
 300 {
 301     if (m_pstream)
 302     {
 303         fclose( m_pstream );
 304         m_pstream = (FILE*) NULL;
 305     }
 306 }
 307
 308 bool wxPostScriptDC::Ok() const
 309 {
 310   return m_ok;
 311 }
 312
 313 void wxPostScriptDC::DoSetClippingRegion (wxCoord x, wxCoord y, wxCoord w, wxCoord h)
 314 {
 315     wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
 316
 317     if (m_clipping) DestroyClippingRegion();
 318
 319     wxDC::DoSetClippingRegion(x, y, w, h);
 320
 321     m_clipping = true;
 322
 323     PsPrintf( wxT("gsave\n newpath\n")
 324               wxT("%d %d moveto\n")
 325               wxT("%d %d lineto\n")
 326               wxT("%d %d lineto\n")
 327               wxT("%d %d lineto\n")
 328               wxT("closepath clip newpath\n"),
 329             LogicalToDeviceX(x),   LogicalToDeviceY(y),
 330             LogicalToDeviceX(x+w), LogicalToDeviceY(y),
 331             LogicalToDeviceX(x+w), LogicalToDeviceY(y+h),
 332             LogicalToDeviceX(x),   LogicalToDeviceY(y+h) );
 333 }
 334
 335
 336 void wxPostScriptDC::DestroyClippingRegion()
 337 {
 338     wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
 339
 340     if (m_clipping)
 341     {
 342         m_clipping = false;
 343         PsPrint( "grestore\n" );
 344     }
 345
 346     wxDC::DestroyClippingRegion();
 347 }
 348
 349 void wxPostScriptDC::Clear()
 350 {
 351     // This should fail silently to avoid unnecessary
 352     // asserts
 353     //    wxFAIL_MSG( wxT("wxPostScriptDC::Clear not implemented.") );
 354 }
 355
 356 bool wxPostScriptDC::DoFloodFill (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour &WXUNUSED(col), int WXUNUSED(style))
 357 {
 358     wxFAIL_MSG( wxT("wxPostScriptDC::FloodFill not implemented.") );
 359     return false;
 360 }
 361
 362 bool wxPostScriptDC::DoGetPixel (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxColour * WXUNUSED(col)) const
 363 {
 364     wxFAIL_MSG( wxT("wxPostScriptDC::GetPixel not implemented.") );
 365     return false;
 366 }
 367
 368 void wxPostScriptDC::DoCrossHair (wxCoord WXUNUSED(x), wxCoord WXUNUSED(y))
 369 {
 370     wxFAIL_MSG( wxT("wxPostScriptDC::CrossHair not implemented.") );
 371 }
 372
 373 void wxPostScriptDC::DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
 374 {
 375     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 376
 377     if  (m_pen.GetStyle() == wxTRANSPARENT) return;
 378
 379     SetPen( m_pen );
 380
 381     PsPrintf( wxT("newpath\n")
 382               wxT("%d %d moveto\n")
 383               wxT("%d %d lineto\n")
 384               wxT("stroke\n"),
 385             LogicalToDeviceX(x1), LogicalToDeviceY(y1),
 386             LogicalToDeviceX(x2), LogicalToDeviceY (y2) );
 387
 388     CalcBoundingBox( x1, y1 );
 389     CalcBoundingBox( x2, y2 );
 390 }
 391
 392 #define RAD2DEG 57.29577951308
 393
 394 void wxPostScriptDC::DoDrawArc (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord xc, wxCoord yc)
 395 {
 396     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 397
 398     wxCoord dx = x1 - xc;
 399     wxCoord dy = y1 - yc;
 400     wxCoord radius = (wxCoord) sqrt( (double)(dx*dx+dy*dy) );
 401     double alpha1, alpha2;
 402
 403     if (x1 == x2 && y1 == y2)
 404     {
 405         alpha1 = 0.0;
 406         alpha2 = 360.0;
 407     }
 408     else if (radius == 0.0)
 409     {
 410         alpha1 = alpha2 = 0.0;
 411     }
 412     else
 413     {
 414         alpha1 = (x1 - xc == 0) ?
 415             (y1 - yc < 0) ? 90.0 : -90.0 :
 416                 -atan2(double(y1-yc), double(x1-xc)) * RAD2DEG;
 417         alpha2 = (x2 - xc == 0) ?
 418             (y2 - yc < 0) ? 90.0 : -90.0 :
 419                 -atan2(double(y2-yc), double(x2-xc)) * RAD2DEG;
 420     }
 421     while (alpha1 <= 0)   alpha1 += 360;
 422     while (alpha2 <= 0)   alpha2 += 360; // adjust angles to be between
 423     while (alpha1 > 360)  alpha1 -= 360; // 0 and 360 degree
 424     while (alpha2 > 360)  alpha2 -= 360;
 425
 426     if (m_brush.GetStyle() != wxTRANSPARENT)
 427     {
 428         SetBrush( m_brush );
 429
 430         PsPrintf( wxT("newpath\n")
 431                   wxT("%d %d %d %d %d %d ellipse\n")
 432                   wxT("%d %d lineto\n")
 433                   wxT("closepath\n")
 434                   wxT("fill\n"),
 435                 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
 436                 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
 437
 438         CalcBoundingBox( xc-radius, yc-radius );
 439         CalcBoundingBox( xc+radius, yc+radius );
 440     }
 441
 442     if (m_pen.GetStyle() != wxTRANSPARENT)
 443     {
 444         SetPen( m_pen );
 445
 446         PsPrintf( wxT("newpath\n")
 447                   wxT("%d %d %d %d %d %d ellipse\n")
 448                   wxT("%d %d lineto\n")
 449                   wxT("stroke\n")
 450                   wxT("fill\n"),
 451                 LogicalToDeviceX(xc), LogicalToDeviceY(yc), LogicalToDeviceXRel(radius), LogicalToDeviceYRel(radius), (wxCoord)alpha1, (wxCoord) alpha2,
 452                 LogicalToDeviceX(xc), LogicalToDeviceY(yc) );
 453
 454         CalcBoundingBox( xc-radius, yc-radius );
 455         CalcBoundingBox( xc+radius, yc+radius );
 456     }
 457 }
 458
 459 void wxPostScriptDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea)
 460 {
 461     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 462
 463     if (sa>=360 || sa<=-360) sa=sa-int(sa/360)*360;
 464     if (ea>=360 || ea<=-360) ea=ea-int(ea/360)*360;
 465     if (sa<0) sa+=360;
 466     if (ea<0) ea+=360;
 467
 468     if (sa==ea)
 469     {
 470         DrawEllipse(x,y,w,h);
 471         return;
 472     }
 473
 474     if (m_brush.GetStyle () != wxTRANSPARENT)
 475     {
 476         SetBrush( m_brush );
 477
 478         PsPrintf( wxT("newpath\n")
 479                   wxT("%d %d %d %d %d %d true ellipticarc\n"),
 480                   LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
 481                   LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
 482                   (wxCoord)sa, (wxCoord)ea );
 483
 484         CalcBoundingBox( x ,y );
 485         CalcBoundingBox( x+w, y+h );
 486     }
 487
 488     if (m_pen.GetStyle () != wxTRANSPARENT)
 489     {
 490         SetPen( m_pen );
 491
 492         PsPrintf( wxT("newpath\n")
 493                   wxT("%d %d %d %d %d %d false ellipticarc\n"),
 494                 LogicalToDeviceX(x+w/2), LogicalToDeviceY(y+h/2),
 495                 LogicalToDeviceXRel(w/2), LogicalToDeviceYRel(h/2),
 496                 (wxCoord)sa, (wxCoord)ea );
 497
 498         CalcBoundingBox( x ,y );
 499         CalcBoundingBox( x+w, y+h );
 500     }
 501 }
 502
 503 void wxPostScriptDC::DoDrawPoint (wxCoord x, wxCoord y)
 504 {
 505     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 506
 507     if (m_pen.GetStyle() == wxTRANSPARENT) return;
 508
 509     SetPen (m_pen);
 510
 511     PsPrintf( wxT("newpath\n")
 512               wxT("%d %d moveto\n")
 513               wxT("%d %d lineto\n")
 514               wxT("stroke\n"),
 515             LogicalToDeviceX(x),   LogicalToDeviceY(y),
 516             LogicalToDeviceX(x+1), LogicalToDeviceY(y) );
 517
 518     CalcBoundingBox( x, y );
 519 }
 520
 521 void wxPostScriptDC::DoDrawPolygon (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
 522 {
 523     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 524
 525     if (n <= 0) return;
 526
 527     if (m_brush.GetStyle () != wxTRANSPARENT)
 528     {
 529         SetBrush( m_brush );
 530
 531         PsPrint( "newpath\n" );
 532
 533         wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
 534         wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
 535
 536         PsPrintf( wxT("%d %d moveto\n"), xx, yy );
 537
 538         CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
 539
 540         for (int i = 1; i < n; i++)
 541         {
 542             xx = LogicalToDeviceX(points[i].x + xoffset);
 543             yy = LogicalToDeviceY(points[i].y + yoffset);
 544
 545             PsPrintf( wxT("%d %d lineto\n"), xx, yy );
 546
 547             CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
 548         }
 549
 550         PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
 551     }
 552
 553     if (m_pen.GetStyle () != wxTRANSPARENT)
 554     {
 555         SetPen( m_pen );
 556
 557         PsPrint( "newpath\n" );
 558
 559         wxCoord xx = LogicalToDeviceX(points[0].x + xoffset);
 560         wxCoord yy = LogicalToDeviceY(points[0].y + yoffset);
 561
 562         PsPrintf( wxT("%d %d moveto\n"), xx, yy );
 563
 564         CalcBoundingBox( points[0].x + xoffset, points[0].y + yoffset );
 565
 566         for (int i = 1; i < n; i++)
 567         {
 568             xx = LogicalToDeviceX(points[i].x + xoffset);
 569             yy = LogicalToDeviceY(points[i].y + yoffset);
 570
 571             PsPrintf( wxT("%d %d lineto\n"), xx, yy );
 572
 573             CalcBoundingBox( points[i].x + xoffset, points[i].y + yoffset);
 574         }
 575
 576         PsPrint( "closepath\n" );
 577         PsPrint( "stroke\n" );
 578     }
 579 }
 580
 581 void wxPostScriptDC::DoDrawPolyPolygon (int n, int count[], wxPoint points[], wxCoord xoffset, wxCoord yoffset, int fillStyle)
 582 {
 583     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 584
 585     if (n <= 0) return;
 586
 587     if (m_brush.GetStyle () != wxTRANSPARENT)
 588     {
 589         SetBrush( m_brush );
 590
 591         PsPrint( "newpath\n" );
 592
 593         int ofs = 0;
 594         for (int i = 0; i < n; ofs += count[i++])
 595         {
 596             wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
 597             wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
 598
 599             PsPrintf( wxT("%d %d moveto\n"), xx, yy );
 600
 601             CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
 602
 603             for (int j = 1; j < count[i]; j++)
 604             {
 605                 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
 606                 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
 607
 608                 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
 609
 610                 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
 611             }
 612         }
 613         PsPrint( (fillStyle == wxODDEVEN_RULE ? "eofill\n" : "fill\n") );
 614     }
 615
 616     if (m_pen.GetStyle () != wxTRANSPARENT)
 617     {
 618         SetPen( m_pen );
 619
 620         PsPrint( "newpath\n" );
 621
 622         int ofs = 0;
 623         for (int i = 0; i < n; ofs += count[i++])
 624         {
 625             wxCoord xx = LogicalToDeviceX(points[ofs].x + xoffset);
 626             wxCoord yy = LogicalToDeviceY(points[ofs].y + yoffset);
 627
 628             PsPrintf( wxT("%d %d moveto\n"), xx, yy );
 629
 630             CalcBoundingBox( points[ofs].x + xoffset, points[ofs].y + yoffset );
 631
 632             for (int j = 1; j < count[i]; j++)
 633             {
 634                 xx = LogicalToDeviceX(points[ofs+j].x + xoffset);
 635                 yy = LogicalToDeviceY(points[ofs+j].y + yoffset);
 636
 637                 PsPrintf( wxT("%d %d lineto\n"), xx, yy );
 638
 639                 CalcBoundingBox( points[ofs+j].x + xoffset, points[ofs+j].y + yoffset);
 640             }
 641         }
 642         PsPrint( "closepath\n" );
 643         PsPrint( "stroke\n" );
 644     }
 645 }
 646
 647 void wxPostScriptDC::DoDrawLines (int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset)
 648 {
 649     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 650
 651     if (m_pen.GetStyle() == wxTRANSPARENT) return;
 652
 653     if (n <= 0) return;
 654
 655     SetPen (m_pen);
 656
 657     int i;
 658     for ( i =0; i<n ; i++ )
 659     {
 660         CalcBoundingBox( LogicalToDeviceX(points[i].x+xoffset), LogicalToDeviceY(points[i].y+yoffset));
 661     }
 662
 663     PsPrintf( wxT("newpath\n")
 664               wxT("%d %d moveto\n"),
 665               LogicalToDeviceX(points[0].x+xoffset),
 666               LogicalToDeviceY(points[0].y+yoffset) );
 667
 668     for (i = 1; i < n; i++)
 669     {
 670         PsPrintf( wxT("%d %d lineto\n"),
 671                   LogicalToDeviceX(points[i].x+xoffset),
 672                   LogicalToDeviceY(points[i].y+yoffset) );
 673     }
 674
 675     PsPrint( "stroke\n" );
 676 }
 677
 678 void wxPostScriptDC::DoDrawRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 679 {
 680     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 681
 682     if (m_brush.GetStyle () != wxTRANSPARENT)
 683     {
 684         SetBrush( m_brush );
 685
 686         PsPrintf( wxT("newpath\n")
 687                   wxT("%d %d moveto\n")
 688                   wxT("%d %d lineto\n")
 689                   wxT("%d %d lineto\n")
 690                   wxT("%d %d lineto\n")
 691                   wxT("closepath\n")
 692                   wxT("fill\n"),
 693                 LogicalToDeviceX(x),         LogicalToDeviceY(y),
 694                 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
 695                 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
 696                 LogicalToDeviceX(x),         LogicalToDeviceY(y + height) );
 697
 698         CalcBoundingBox( x, y );
 699         CalcBoundingBox( x + width, y + height );
 700     }
 701
 702     if (m_pen.GetStyle () != wxTRANSPARENT)
 703     {
 704         SetPen (m_pen);
 705
 706         PsPrintf( wxT("newpath\n")
 707                   wxT("%d %d moveto\n")
 708                   wxT("%d %d lineto\n")
 709                   wxT("%d %d lineto\n")
 710                   wxT("%d %d lineto\n")
 711                   wxT("closepath\n")
 712                   wxT("stroke\n"),
 713                 LogicalToDeviceX(x),         LogicalToDeviceY(y),
 714                 LogicalToDeviceX(x + width), LogicalToDeviceY(y),
 715                 LogicalToDeviceX(x + width), LogicalToDeviceY(y + height),
 716                 LogicalToDeviceX(x),         LogicalToDeviceY(y + height) );
 717
 718         CalcBoundingBox( x, y );
 719         CalcBoundingBox( x + width, y + height );
 720     }
 721 }
 722
 723 void wxPostScriptDC::DoDrawRoundedRectangle (wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius)
 724 {
 725     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 726
 727     if (radius < 0.0)
 728     {
 729         // Now, a negative radius is interpreted to mean
 730         // 'the proportion of the smallest X or Y dimension'
 731         double smallest = width < height ? width : height;
 732         radius =  (-radius * smallest);
 733     }
 734
 735     wxCoord rad = (wxCoord) radius;
 736
 737     if (m_brush.GetStyle () != wxTRANSPARENT)
 738     {
 739         SetBrush( m_brush );
 740
 741         /* Draw rectangle anticlockwise */
 742         PsPrintf( wxT("newpath\n")
 743                   wxT("%d %d %d 90 180 arc\n")
 744                   wxT("%d %d lineto\n")
 745                   wxT("%d %d %d 180 270 arc\n")
 746                   wxT("%d %d lineto\n")
 747                   wxT("%d %d %d 270 0 arc\n")
 748                   wxT("%d %d lineto\n")
 749                   wxT("%d %d %d 0 90 arc\n")
 750                   wxT("%d %d lineto\n")
 751                   wxT("closepath\n")
 752                   wxT("fill\n"),
 753                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
 754                 LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
 755                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
 756                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
 757                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
 758                 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
 759                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
 760                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
 761
 762         CalcBoundingBox( x, y );
 763         CalcBoundingBox( x + width, y + height );
 764     }
 765
 766     if (m_pen.GetStyle () != wxTRANSPARENT)
 767     {
 768         SetPen (m_pen);
 769
 770         /* Draw rectangle anticlockwise */
 771         PsPrintf( wxT("newpath\n")
 772                   wxT("%d %d %d 90 180 arc\n")
 773                   wxT("%d %d lineto\n")
 774                   wxT("%d %d %d 180 270 arc\n")
 775                   wxT("%d %d lineto\n")
 776                   wxT("%d %d %d 270 0 arc\n")
 777                   wxT("%d %d lineto\n")
 778                   wxT("%d %d %d 0 90 arc\n")
 779                   wxT("%d %d lineto\n")
 780                   wxT("closepath\n")
 781                   wxT("stroke\n"),
 782                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
 783                 LogicalToDeviceX(x), LogicalToDeviceY(y + height - rad),
 784                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
 785                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height),
 786                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + height - rad), LogicalToDeviceXRel(rad),
 787                 LogicalToDeviceX(x + width), LogicalToDeviceY(y + rad),
 788                 LogicalToDeviceX(x + width - rad), LogicalToDeviceY(y + rad), LogicalToDeviceXRel(rad),
 789                 LogicalToDeviceX(x + rad), LogicalToDeviceY(y) );
 790
 791         CalcBoundingBox( x, y );
 792         CalcBoundingBox( x + width, y + height );
 793     }
 794 }
 795
 796 void wxPostScriptDC::DoDrawEllipse (wxCoord x, wxCoord y, wxCoord width, wxCoord height)
 797 {
 798     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 799
 800     if (m_brush.GetStyle () != wxTRANSPARENT)
 801     {
 802         SetBrush (m_brush);
 803
 804         PsPrintf( wxT("newpath\n")
 805                   wxT("%d %d %d %d 0 360 ellipse\n")
 806                   wxT("fill\n"),
 807                 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
 808                 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
 809
 810         CalcBoundingBox( x - width, y - height );
 811         CalcBoundingBox( x + width, y + height );
 812     }
 813
 814     if (m_pen.GetStyle () != wxTRANSPARENT)
 815     {
 816         SetPen (m_pen);
 817
 818         PsPrintf( wxT("newpath\n")
 819                   wxT("%d %d %d %d 0 360 ellipse\n")
 820                   wxT("stroke\n"),
 821                 LogicalToDeviceX(x + width / 2), LogicalToDeviceY(y + height / 2),
 822                 LogicalToDeviceXRel(width / 2), LogicalToDeviceYRel(height / 2) );
 823
 824         CalcBoundingBox( x - width, y - height );
 825         CalcBoundingBox( x + width, y + height );
 826     }
 827 }
 828
 829 void wxPostScriptDC::DoDrawIcon( const wxIcon& icon, wxCoord x, wxCoord y )
 830 {
 831     DrawBitmap( icon, x, y, true );
 832 }
 833
 834 /* this has to be char, not wxChar */
 835 static char hexArray[] = "0123456789ABCDEF";
 836
 837 void wxPostScriptDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, bool WXUNUSED(useMask) )
 838 {
 839     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 840
 841     if (!bitmap.Ok()) return;
 842
 843     wxImage image = bitmap.ConvertToImage();
 844
 845     if (!image.Ok()) return;
 846
 847     wxCoord w = image.GetWidth();
 848     wxCoord h = image.GetHeight();
 849
 850     wxCoord ww = LogicalToDeviceXRel(image.GetWidth());
 851     wxCoord hh = LogicalToDeviceYRel(image.GetHeight());
 852
 853     wxCoord xx = LogicalToDeviceX(x);
 854     wxCoord yy = LogicalToDeviceY(y + bitmap.GetHeight());
 855
 856     PsPrintf( wxT("/origstate save def\n")
 857               wxT("20 dict begin\n")
 858               wxT("/pix %d string def\n")
 859               wxT("/grays %d string def\n")
 860               wxT("/npixels 0 def\n")
 861               wxT("/rgbindx 0 def\n")
 862               wxT("%d %d translate\n")
 863               wxT("%d %d scale\n")
 864               wxT("%d %d 8\n")
 865               wxT("[%d 0 0 %d 0 %d]\n")
 866               wxT("{currentfile pix readhexstring pop}\n")
 867               wxT("false 3 colorimage\n"),
 868             w, w, xx, yy, ww, hh, w, h, w, -h, h );
 869
 870     unsigned char* data = image.GetData();
 871
 872     /* buffer = line = width*rgb(3)*hexa(2)+'\n'(1)+null(1) */
 873     char* buffer = new char[ w*6+2 ];
 874     int firstDigit, secondDigit;
 875
 876     //rows
 877     for (int j = 0; j < h; j++)
 878     {
 879         char* bufferindex = buffer;
 880
 881         //cols
 882         for (int i = 0; i < w*3; i++)
 883         {
 884             firstDigit = (int)(*data/16.0);
 885             secondDigit = (int)(*data - (firstDigit*16.0));
 886             *(bufferindex++) = hexArray[firstDigit];
 887             *(bufferindex++) = hexArray[secondDigit];
 888
 889             data++;
 890         }
 891         *(bufferindex++) = '\n';
 892         *bufferindex = 0;
 893         PsPrint( buffer );
 894     }
 895
 896     PsPrint( "end\n" );
 897     PsPrint( "origstate restore\n" );
 898 }
 899
 900 void wxPostScriptDC::SetFont( const wxFont& font )
 901 {
 902     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 903
 904     if (!font.Ok())  return;
 905
 906     m_font = font;
 907
 908     int Style = m_font.GetStyle();
 909     int Weight = m_font.GetWeight();
 910
 911     const char *name;
 912     switch (m_font.GetFamily())
 913     {
 914         case wxTELETYPE:
 915         case wxMODERN:
 916         {
 917             if (Style == wxITALIC)
 918             {
 919                 if (Weight == wxBOLD)
 920                     name = "/Courier-BoldOblique";
 921                 else
 922                     name = "/Courier-Oblique";
 923             }
 924             else
 925             {
 926                 if (Weight == wxBOLD)
 927                     name = "/Courier-Bold";
 928                 else
 929                     name = "/Courier";
 930             }
 931             break;
 932         }
 933         case wxROMAN:
 934         {
 935             if (Style == wxITALIC)
 936             {
 937                 if (Weight == wxBOLD)
 938                     name = "/Times-BoldItalic";
 939                 else
 940                     name = "/Times-Italic";
 941             }
 942             else
 943             {
 944                 if (Weight == wxBOLD)
 945                     name = "/Times-Bold";
 946                 else
 947                     name = "/Times-Roman";
 948             }
 949             break;
 950         }
 951         case wxSCRIPT:
 952         {
 953             name = "/ZapfChancery-MediumItalic";
 954             break;
 955         }
 956         case wxSWISS:
 957         default:
 958         {
 959             if (Style == wxITALIC)
 960             {
 961                 if (Weight == wxBOLD)
 962                     name = "/Helvetica-BoldOblique";
 963                 else
 964                     name = "/Helvetica-Oblique";
 965             }
 966             else
 967             {
 968                 if (Weight == wxBOLD)
 969                     name = "/Helvetica-Bold";
 970                 else
 971                     name = "/Helvetica";
 972             }
 973             break;
 974         }
 975     }
 976
 977     // We may legitimately call SetFont before BeginDoc
 978     if (!m_pstream)
 979         return;
 980
 981     PsPrint( name );
 982     PsPrint( " reencodeISO def\n" );
 983     PsPrint( name );
 984     PsPrint( " findfont\n" );
 985
 986     char buffer[100];
 987     sprintf( buffer, "%f scalefont setfont\n", LogicalToDeviceYRel(m_font.GetPointSize() * 1000) / 1000.0F);
 988     // this is a hack - we must scale font size (in pts) according to m_scaleY but
 989     // LogicalToDeviceYRel works with wxCoord type (int or longint). Se we first convert font size
 990     // to 1/1000th of pt and then back.
 991     for (int i = 0; i < 100; i++)
 992         if (buffer[i] == ',') buffer[i] = '.';
 993     PsPrint( buffer );
 994 }
 995
 996 void wxPostScriptDC::SetPen( const wxPen& pen )
 997 {
 998     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
 999
1000     if (!pen.Ok()) return;
1001
1002     int oldStyle = m_pen.GetStyle();
1003
1004     m_pen = pen;
1005
1006     char buffer[100];
1007     sprintf( buffer, "%f setlinewidth\n", LogicalToDeviceXRel(1000 * m_pen.GetWidth()) / 1000.0f );
1008     for (int i = 0; i < 100; i++)
1009         if (buffer[i] == ',') buffer[i] = '.';
1010     PsPrint( buffer );
1011
1012 /*
1013      Line style - WRONG: 2nd arg is OFFSET
1014
1015      Here, I'm afraid you do not conceive meaning of parameters of 'setdash'
1016      operator correctly. You should look-up this in the Red Book: the 2nd parame-
1017      ter is not number of values in the array of the first one, but an offset
1018      into this description of the pattern. I mean a real *offset* not index
1019      into array. I.e. If the command is [3 4] 1 setdash   is used, then there
1020      will be first black line *2* units wxCoord, then space 4 units, then the
1021      pattern of *3* units black, 4 units space will be repeated.
1022 */
1023
1024     static const char *dotted = "[2 5] 2";
1025     static const char *short_dashed = "[4 4] 2";
1026     static const char *wxCoord_dashed = "[4 8] 2";
1027     static const char *dotted_dashed = "[6 6 2 6] 4";
1028
1029     const char *psdash;
1030
1031     switch (m_pen.GetStyle())
1032     {
1033         case wxDOT:           psdash = dotted;         break;
1034         case wxSHORT_DASH:    psdash = short_dashed;   break;
1035         case wxLONG_DASH:     psdash = wxCoord_dashed; break;
1036         case wxDOT_DASH:      psdash = dotted_dashed;  break;
1037         case wxSOLID:
1038         case wxTRANSPARENT:
1039         default:              psdash = "[] 0";         break;
1040     }
1041
1042     if ( (oldStyle != m_pen.GetStyle()) )
1043     {
1044         PsPrint( psdash );
1045         PsPrint( " setdash\n" );
1046     }
1047
1048     // Line colour
1049     unsigned char red = m_pen.GetColour().Red();
1050     unsigned char blue = m_pen.GetColour().Blue();
1051     unsigned char green = m_pen.GetColour().Green();
1052
1053     if (!m_colour)
1054     {
1055         // Anything not white is black
1056         if (! (red == (unsigned char) 255 &&
1057                blue == (unsigned char) 255 &&
1058                green == (unsigned char) 255) )
1059         {
1060             red = (unsigned char) 0;
1061             green = (unsigned char) 0;
1062             blue = (unsigned char) 0;
1063         }
1064         // setgray here ?
1065     }
1066
1067     if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1068     {
1069         double redPS = (double)(red) / 255.0;
1070         double bluePS = (double)(blue) / 255.0;
1071         double greenPS = (double)(green) / 255.0;
1072
1073         char buffer[100];
1074         sprintf( buffer,
1075             "%.8f %.8f %.8f setrgbcolor\n",
1076             redPS, greenPS, bluePS );
1077         for (int i = 0; i < 100; i++)
1078             if (buffer[i] == ',') buffer[i] = '.';
1079
1080         PsPrint( buffer );
1081
1082         m_currentRed = red;
1083         m_currentBlue = blue;
1084         m_currentGreen = green;
1085     }
1086 }
1087
1088 void wxPostScriptDC::SetBrush( const wxBrush& brush )
1089 {
1090     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1091
1092     if (!brush.Ok()) return;
1093
1094     m_brush = brush;
1095
1096     // Brush colour
1097     unsigned char red = m_brush.GetColour().Red();
1098     unsigned char blue = m_brush.GetColour().Blue();
1099     unsigned char green = m_brush.GetColour().Green();
1100
1101     if (!m_colour)
1102     {
1103         // Anything not white is black
1104         if (! (red == (unsigned char) 255 &&
1105                blue == (unsigned char) 255 &&
1106                green == (unsigned char) 255) )
1107         {
1108             red = (unsigned char) 0;
1109             green = (unsigned char) 0;
1110             blue = (unsigned char) 0;
1111         }
1112         // setgray here ?
1113     }
1114
1115     if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1116     {
1117         double redPS = (double)(red) / 255.0;
1118         double bluePS = (double)(blue) / 255.0;
1119         double greenPS = (double)(green) / 255.0;
1120
1121         char buffer[100];
1122         sprintf( buffer,
1123                 "%.8f %.8f %.8f setrgbcolor\n",
1124                 redPS, greenPS, bluePS );
1125         for (int i = 0; i < 100; i++)
1126             if (buffer[i] == ',') buffer[i] = '.';
1127
1128         PsPrint( buffer );
1129
1130         m_currentRed = red;
1131         m_currentBlue = blue;
1132         m_currentGreen = green;
1133     }
1134 }
1135
1136 void wxPostScriptDC::DoDrawText( const wxString& text, wxCoord x, wxCoord y )
1137 {
1138     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1139
1140     if (m_textForegroundColour.Ok())
1141     {
1142         unsigned char red = m_textForegroundColour.Red();
1143         unsigned char blue = m_textForegroundColour.Blue();
1144         unsigned char green = m_textForegroundColour.Green();
1145
1146         if (!m_colour)
1147         {
1148             // Anything not white is black
1149             if (! (red == (unsigned char) 255 &&
1150                         blue == (unsigned char) 255 &&
1151                         green == (unsigned char) 255))
1152             {
1153                 red = (unsigned char) 0;
1154                 green = (unsigned char) 0;
1155                 blue = (unsigned char) 0;
1156             }
1157         }
1158
1159         // maybe setgray here ?
1160         if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1161         {
1162             double redPS = (double)(red) / 255.0;
1163             double bluePS = (double)(blue) / 255.0;
1164             double greenPS = (double)(green) / 255.0;
1165
1166             char buffer[100];
1167             sprintf( buffer,
1168                 "%.8f %.8f %.8f setrgbcolor\n",
1169                 redPS, greenPS, bluePS );
1170             for (size_t i = 0; i < strlen(buffer); i++)
1171                 if (buffer[i] == ',') buffer[i] = '.';
1172             PsPrint( buffer );
1173
1174             m_currentRed = red;
1175             m_currentBlue = blue;
1176             m_currentGreen = green;
1177         }
1178     }
1179
1180     wxCoord text_w, text_h, text_descent;
1181
1182     GetTextExtent(text, &text_w, &text_h, &text_descent);
1183
1184     // VZ: this seems to be unnecessary, so taking it out for now, if it
1185     //     doesn't create any problems, remove this comment entirely
1186     //SetFont( m_font );
1187
1188
1189     int size = m_font.GetPointSize();
1190
1191 //    wxCoord by = y + (wxCoord)floor( double(size) * 2.0 / 3.0 ); // approximate baseline
1192 //    commented by V. Slavik and replaced by accurate version
1193 //        - note that there is still rounding error in text_descent!
1194     wxCoord by = y + size - text_descent; // baseline
1195
1196     PsPrintf( wxT("%d %d moveto\n"), LogicalToDeviceX(x), LogicalToDeviceY(by) );
1197     PsPrint( "(" );
1198
1199     const wxWX2MBbuf textbuf = text.mb_str();
1200     size_t len = strlen(textbuf);
1201     size_t i;
1202     for (i = 0; i < len; i++)
1203     {
1204         int c = (unsigned char) textbuf[i];
1205         if (c == ')' || c == '(' || c == '\\')
1206         {
1207             /* Cope with special characters */
1208             PsPrint( "\\" );
1209             PsPrint(c);
1210         }
1211         else if ( c >= 128 )
1212         {
1213             /* Cope with character codes > 127 */
1214             PsPrintf( wxT("\\%o"), c);
1215         }
1216         else
1217         {
1218             PsPrint(c);
1219         }
1220     }
1221
1222     PsPrint( ") show\n" );
1223
1224     if (m_font.GetUnderlined())
1225     {
1226         wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1227         char buffer[100];
1228
1229         sprintf( buffer,
1230                 "gsave\n"
1231                 "%d %d moveto\n"
1232                 "%f setlinewidth\n"
1233                 "%d %d lineto\n"
1234                 "stroke\n"
1235                 "grestore\n",
1236                 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1237                 m_underlineThickness,
1238                 LogicalToDeviceX(x + text_w), LogicalToDeviceY(uy) );
1239         for (i = 0; i < 100; i++)
1240             if (buffer[i] == ',') buffer[i] = '.';
1241         PsPrint( buffer );
1242     }
1243
1244     CalcBoundingBox( x, y );
1245     CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1246 }
1247
1248 void wxPostScriptDC::DoDrawRotatedText( const wxString& text, wxCoord x, wxCoord y, double angle )
1249 {
1250     if (angle == 0.0)
1251     {
1252         DoDrawText(text, x, y);
1253         return;
1254     }
1255
1256     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1257
1258     SetFont( m_font );
1259
1260     if (m_textForegroundColour.Ok())
1261     {
1262         unsigned char red = m_textForegroundColour.Red();
1263         unsigned char blue = m_textForegroundColour.Blue();
1264         unsigned char green = m_textForegroundColour.Green();
1265
1266         if (!m_colour)
1267         {
1268             // Anything not white is black
1269             if (! (red == (unsigned char) 255 &&
1270                    blue == (unsigned char) 255 &&
1271                    green == (unsigned char) 255))
1272             {
1273                 red = (unsigned char) 0;
1274                 green = (unsigned char) 0;
1275                 blue = (unsigned char) 0;
1276             }
1277         }
1278
1279         // maybe setgray here ?
1280         if (!(red == m_currentRed && green == m_currentGreen && blue == m_currentBlue))
1281         {
1282             double redPS = (double)(red) / 255.0;
1283             double bluePS = (double)(blue) / 255.0;
1284             double greenPS = (double)(green) / 255.0;
1285
1286             char buffer[100];
1287             sprintf( buffer,
1288                 "%.8f %.8f %.8f setrgbcolor\n",
1289                 redPS, greenPS, bluePS );
1290             for (int i = 0; i < 100; i++)
1291                 if (buffer[i] == ',') buffer[i] = '.';
1292             PsPrint( buffer );
1293
1294             m_currentRed = red;
1295             m_currentBlue = blue;
1296             m_currentGreen = green;
1297         }
1298     }
1299
1300     int size = m_font.GetPointSize();
1301
1302     PsPrintf( wxT("%d %d moveto\n"),
1303             LogicalToDeviceX(x), LogicalToDeviceY(y));
1304
1305     char buffer[100];
1306     sprintf(buffer, "%.8f rotate\n", angle);
1307     size_t i;
1308     for (i = 0; i < 100; i++)
1309     {
1310         if (buffer[i] == ',') buffer[i] = '.';
1311     }
1312     PsPrint( buffer);
1313
1314     PsPrint( "(" );
1315     const wxWX2MBbuf textbuf = text.mb_str();
1316     size_t len = strlen(textbuf);
1317     for (i = 0; i < len; i++)
1318     {
1319         int c = (unsigned char) textbuf[i];
1320         if (c == ')' || c == '(' || c == '\\')
1321         {
1322             /* Cope with special characters */
1323             PsPrint( "\\" );
1324             PsPrint(c);
1325         }
1326         else if ( c >= 128 )
1327         {
1328             /* Cope with character codes > 127 */
1329             PsPrintf( wxT("\\%o"), c);
1330         }
1331         else
1332         {
1333             PsPrint(c);
1334         }
1335     }
1336
1337     PsPrint( ") show\n" );
1338
1339     sprintf( buffer, "%.8f rotate\n", -angle );
1340     for (i = 0; i < 100; i++)
1341     {
1342         if (buffer[i] == ',') buffer[i] = '.';
1343     }
1344     PsPrint( buffer );
1345
1346     if (m_font.GetUnderlined())
1347     {
1348         wxCoord uy = (wxCoord)(y + size - m_underlinePosition);
1349         wxCoord w, h;
1350         char buffer[100];
1351         GetTextExtent(text, &w, &h);
1352
1353         sprintf( buffer,
1354                 "gsave\n"
1355                 "%d %d moveto\n"
1356                 "%f setlinewidth\n"
1357                 "%d %d lineto\n"
1358                 "stroke\n"
1359                 "grestore\n",
1360                 LogicalToDeviceX(x), LogicalToDeviceY(uy),
1361                 m_underlineThickness,
1362                 LogicalToDeviceX(x + w), LogicalToDeviceY(uy) );
1363         for (i = 0; i < 100; i++)
1364         {
1365             if (buffer[i] == ',') buffer[i] = '.';
1366         }
1367         PsPrint( buffer );
1368     }
1369
1370     CalcBoundingBox( x, y );
1371     CalcBoundingBox( x + size * text.Length() * 2/3 , y );
1372 }
1373
1374 void wxPostScriptDC::SetBackground (const wxBrush& brush)
1375 {
1376     m_backgroundBrush = brush;
1377 }
1378
1379 void wxPostScriptDC::SetLogicalFunction (int WXUNUSED(function))
1380 {
1381     wxFAIL_MSG( wxT("wxPostScriptDC::SetLogicalFunction not implemented.") );
1382 }
1383
1384 #if wxUSE_SPLINES
1385 void wxPostScriptDC::DoDrawSpline( wxList *points )
1386 {
1387     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1388
1389     SetPen( m_pen );
1390
1391     // a and b are not used
1392     //double a, b;
1393     double c, d, x1, y1, x2, y2, x3, y3;
1394     wxPoint *p, *q;
1395
1396     wxList::compatibility_iterator node = points->GetFirst();
1397     p = (wxPoint *)node->GetData();
1398     x1 = p->x;
1399     y1 = p->y;
1400
1401     node = node->GetNext();
1402     p = (wxPoint *)node->GetData();
1403     c = p->x;
1404     d = p->y;
1405     x3 =
1406          #if 0
1407          a =
1408          #endif
1409          (double)(x1 + c) / 2;
1410     y3 =
1411          #if 0
1412          b =
1413          #endif
1414          (double)(y1 + d) / 2;
1415
1416     PsPrintf( wxT("newpath\n")
1417               wxT("%d %d moveto\n")
1418               wxT("%d %d lineto\n"),
1419             LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1420             LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1421
1422     CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1423     CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1424
1425     node = node->GetNext();
1426     while (node)
1427     {
1428         q = (wxPoint *)node->GetData();
1429
1430         x1 = x3;
1431         y1 = y3;
1432         x2 = c;
1433         y2 = d;
1434         c = q->x;
1435         d = q->y;
1436         x3 = (double)(x2 + c) / 2;
1437         y3 = (double)(y2 + d) / 2;
1438
1439         PsPrintf( wxT("%d %d %d %d %d %d DrawSplineSection\n"),
1440             LogicalToDeviceX((wxCoord)x1), LogicalToDeviceY((wxCoord)y1),
1441             LogicalToDeviceX((wxCoord)x2), LogicalToDeviceY((wxCoord)y2),
1442             LogicalToDeviceX((wxCoord)x3), LogicalToDeviceY((wxCoord)y3) );
1443
1444         CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
1445         CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
1446
1447         node = node->GetNext();
1448     }
1449
1450     /*
1451        At this point, (x2,y2) and (c,d) are the position of the
1452        next-to-last and last point respectively, in the point list
1453      */
1454
1455     PsPrintf( wxT("%d %d lineto\n")
1456               wxT("stroke\n"),
1457             LogicalToDeviceX((wxCoord)c), LogicalToDeviceY((wxCoord)d) );
1458 }
1459 #endif // wxUSE_SPLINES
1460
1461 wxCoord wxPostScriptDC::GetCharWidth() const
1462 {
1463     // Chris Breeze: reasonable approximation using wxMODERN/Courier
1464     return (wxCoord) (GetCharHeight() * 72.0 / 120.0);
1465 }
1466
1467
1468 void wxPostScriptDC::SetAxisOrientation( bool xLeftRight, bool yBottomUp )
1469 {
1470     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1471
1472     m_signX = (xLeftRight ? 1 : -1);
1473     m_signY = (yBottomUp  ? 1 : -1);
1474
1475     ComputeScaleAndOrigin();
1476 }
1477
1478 void wxPostScriptDC::SetDeviceOrigin( wxCoord x, wxCoord y )
1479 {
1480     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1481
1482     int h = 0;
1483     int w = 0;
1484     GetSize( &w, &h );
1485
1486     wxDC::SetDeviceOrigin( x, h-y );
1487 }
1488
1489 void wxPostScriptDC::DoGetSize(int* width, int* height) const
1490 {
1491     wxPaperSize id = m_printData.GetPaperId();
1492
1493     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1494
1495     if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1496
1497     int w = 595;
1498     int h = 842;
1499     if (paper)
1500     {
1501         w = paper->GetSizeDeviceUnits().x;
1502         h = paper->GetSizeDeviceUnits().y;
1503     }
1504
1505     if (m_printData.GetOrientation() == wxLANDSCAPE)
1506     {
1507         int tmp = w;
1508         w = h;
1509         h = tmp;
1510     }
1511
1512     if (width) *width = (int)(w * ms_PSScaleFactor);
1513     if (height) *height = (int)(h * ms_PSScaleFactor);
1514 }
1515
1516 void wxPostScriptDC::DoGetSizeMM(int *width, int *height) const
1517 {
1518     wxPaperSize id = m_printData.GetPaperId();
1519
1520     wxPrintPaperType *paper = wxThePrintPaperDatabase->FindPaperType(id);
1521
1522     if (!paper) paper = wxThePrintPaperDatabase->FindPaperType(wxPAPER_A4);
1523
1524     int w = 210;
1525     int h = 297;
1526     if (paper)
1527     {
1528         w = paper->GetWidth() / 10;
1529         h = paper->GetHeight() / 10;
1530     }
1531
1532     if (m_printData.GetOrientation() == wxLANDSCAPE)
1533     {
1534         int tmp = w;
1535         w = h;
1536         h = tmp;
1537     }
1538
1539     if (width) *width = w;
1540     if (height) *height = h;
1541 }
1542
1543 // Resolution in pixels per logical inch
1544 wxSize wxPostScriptDC::GetPPI(void) const
1545 {
1546     return wxSize((int)(72 * ms_PSScaleFactor),
1547                   (int)(72 * ms_PSScaleFactor));
1548 }
1549
1550
1551 bool wxPostScriptDC::StartDoc( const wxString& message )
1552 {
1553     wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1554
1555     if (m_printData.GetPrintMode() != wxPRINT_MODE_STREAM )
1556     {
1557         if (m_printData.GetFilename() == wxEmptyString)
1558         {
1559             wxString filename = wxGetTempFileName( wxT("ps") );
1560             m_printData.SetFilename(filename);
1561         }
1562
1563         m_pstream = wxFopen( m_printData.GetFilename(), wxT("w+") );
1564
1565         if (!m_pstream)
1566         {
1567             wxLogError( _("Cannot open file for PostScript printing!"));
1568             m_ok = false;
1569             return false;
1570         }
1571     }
1572
1573     m_ok = true;
1574     m_title = message;
1575
1576     PsPrint( "%!PS-Adobe-2.0\n" );
1577     PsPrintf( wxT("%%%%Title: %s\n"), m_title.c_str() );
1578     PsPrint( "%%Creator: wxWidgets PostScript renderer\n" );
1579     PsPrintf( wxT("%%%%CreationDate: %s\n"), wxNow().c_str() );
1580     if (m_printData.GetOrientation() == wxLANDSCAPE)
1581         PsPrint( "%%Orientation: Landscape\n" );
1582     else
1583         PsPrint( "%%Orientation: Portrait\n" );
1584
1585     // PsPrintf( wxT("%%%%Pages: %d\n"), (wxPageNumber - 1) );
1586
1587     const wxChar *paper;
1588     switch (m_printData.GetPaperId())
1589     {
1590        case wxPAPER_LETTER: paper = wxT("Letter"); break;             // Letter: paper ""; 8 1/2 by 11 inches
1591        case wxPAPER_LEGAL: paper = wxT("Legal"); break;              // Legal, 8 1/2 by 14 inches
1592        case wxPAPER_A4: paper = wxT("A4"); break;          // A4 Sheet, 210 by 297 millimeters
1593        case wxPAPER_TABLOID: paper = wxT("Tabloid"); break;     // Tabloid, 11 by 17 inches
1594        case wxPAPER_LEDGER: paper = wxT("Ledger"); break;      // Ledger, 17 by 11 inches
1595        case wxPAPER_STATEMENT: paper = wxT("Statement"); break;   // Statement, 5 1/2 by 8 1/2 inches
1596        case wxPAPER_EXECUTIVE: paper = wxT("Executive"); break;   // Executive, 7 1/4 by 10 1/2 inches
1597        case wxPAPER_A3: paper = wxT("A3"); break;          // A3 sheet, 297 by 420 millimeters
1598        case wxPAPER_A5: paper = wxT("A5"); break;          // A5 sheet, 148 by 210 millimeters
1599        case wxPAPER_B4: paper = wxT("B4"); break;          // B4 sheet, 250 by 354 millimeters
1600        case wxPAPER_B5: paper = wxT("B5"); break;          // B5 sheet, 182-by-257-millimeter paper
1601        case wxPAPER_FOLIO: paper = wxT("Folio"); break;       // Folio, 8-1/2-by-13-inch paper
1602        case wxPAPER_QUARTO: paper = wxT("Quaro"); break;      // Quarto, 215-by-275-millimeter paper
1603        case wxPAPER_10X14: paper = wxT("10x14"); break;       // 10-by-14-inch sheet
1604        default: paper = wxT("A4");
1605     }
1606     PsPrintf( wxT("%%%%DocumentPaperSizes: %s\n"), paper );
1607     PsPrint( "%%EndComments\n\n" );
1608
1609     PsPrint( "%%BeginProlog\n" );
1610     PsPrint( wxPostScriptHeaderConicTo );
1611     PsPrint( wxPostScriptHeaderEllipse );
1612     PsPrint( wxPostScriptHeaderEllipticArc );
1613     PsPrint( wxPostScriptHeaderColourImage );
1614     PsPrint( wxPostScriptHeaderReencodeISO1 );
1615     PsPrint( wxPostScriptHeaderReencodeISO2 );
1616     if (wxPostScriptHeaderSpline)
1617         PsPrint( wxPostScriptHeaderSpline );
1618     PsPrint( "%%EndProlog\n" );
1619
1620     SetBrush( *wxBLACK_BRUSH );
1621     SetPen( *wxBLACK_PEN );
1622     SetBackground( *wxWHITE_BRUSH );
1623     SetTextForeground( *wxBLACK );
1624
1625     // set origin according to paper size
1626     SetDeviceOrigin( 0,0 );
1627
1628     wxPageNumber = 1;
1629     m_pageNumber = 1;
1630     return true;
1631 }
1632
1633 void wxPostScriptDC::EndDoc ()
1634 {
1635     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1636
1637     if (m_clipping)
1638     {
1639         m_clipping = false;
1640         PsPrint( "grestore\n" );
1641     }
1642
1643     if ( m_pstream ) {
1644         fclose( m_pstream );
1645         m_pstream = (FILE *) NULL;
1646     }
1647
1648 #if 0
1649     // THE FOLLOWING HAS BEEN CONTRIBUTED BY Andy Fyfe <andy@hyperparallel.com>
1650     wxCoord wx_printer_translate_x, wx_printer_translate_y;
1651     double wx_printer_scale_x, wx_printer_scale_y;
1652
1653     wx_printer_translate_x = (wxCoord)m_printData.GetPrinterTranslateX();
1654     wx_printer_translate_y = (wxCoord)m_printData.GetPrinterTranslateY();
1655
1656     wx_printer_scale_x = m_printData.GetPrinterScaleX();
1657     wx_printer_scale_y = m_printData.GetPrinterScaleY();
1658
1659     // Compute the bounding box.  Note that it is in the default user
1660     // coordinate system, thus we have to convert the values.
1661     wxCoord minX = (wxCoord) LogicalToDeviceX(m_minX);
1662     wxCoord minY = (wxCoord) LogicalToDeviceY(m_minY);
1663     wxCoord maxX = (wxCoord) LogicalToDeviceX(m_maxX);
1664     wxCoord maxY = (wxCoord) LogicalToDeviceY(m_maxY);
1665
1666     // LOG2DEV may have changed the minimum to maximum vice versa
1667     if ( minX > maxX ) { wxCoord tmp = minX; minX = maxX; maxX = tmp; }
1668     if ( minY > maxY ) { wxCoord tmp = minY; minY = maxY; maxY = tmp; }
1669
1670     // account for used scaling (boundingbox is before scaling in ps-file)
1671     double scale_x = m_printData.GetPrinterScaleX() / ms_PSScaleFactor;
1672     double scale_y = m_printData.GetPrinterScaleY() / ms_PSScaleFactor;
1673
1674     wxCoord llx, lly, urx, ury;
1675     llx = (wxCoord) ((minX+wx_printer_translate_x)*scale_x);
1676     lly = (wxCoord) ((minY+wx_printer_translate_y)*scale_y);
1677     urx = (wxCoord) ((maxX+wx_printer_translate_x)*scale_x);
1678     ury = (wxCoord) ((maxY+wx_printer_translate_y)*scale_y);
1679     // (end of bounding box computation)
1680
1681
1682     // If we're landscape, our sense of "x" and "y" is reversed.
1683     if (m_printData.GetOrientation() == wxLANDSCAPE)
1684     {
1685         wxCoord tmp;
1686         tmp = llx; llx = lly; lly = tmp;
1687         tmp = urx; urx = ury; ury = tmp;
1688
1689         // We need either the two lines that follow, or we need to subtract
1690         // min_x from real_translate_y, which is commented out below.
1691         llx = llx - (wxCoord)(m_minX*wx_printer_scale_y);
1692         urx = urx - (wxCoord)(m_minX*wx_printer_scale_y);
1693     }
1694
1695     // The Adobe specifications call for integers; we round as to make
1696     // the bounding larger.
1697     PsPrintf( wxT("%%%%BoundingBox: %d %d %d %d\n"),
1698             (wxCoord)floor((double)llx), (wxCoord)floor((double)lly),
1699             (wxCoord)ceil((double)urx), (wxCoord)ceil((double)ury) );
1700
1701     // To check the correctness of the bounding box, postscript commands
1702     // to draw a box corresponding to the bounding box are generated below.
1703     // But since we typically don't want to print such a box, the postscript
1704     // commands are generated within comments.  These lines appear before any
1705     // adjustment of scale, rotation, or translation, and hence are in the
1706     // default user coordinates.
1707     PsPrint( "% newpath\n" );
1708     PsPrintf( wxT("%% %d %d moveto\n"), llx, lly );
1709     PsPrintf( wxT("%% %d %d lineto\n"), urx, lly );
1710     PsPrintf( wxT("%% %d %d lineto\n"), urx, ury );
1711     PsPrintf( wxT("%% %d %d lineto closepath stroke\n"), llx, ury );
1712 #endif
1713
1714 #ifndef __WXMSW__
1715     wxPostScriptPrintNativeData *data =
1716         (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1717
1718     if (m_ok && (m_printData.GetPrintMode() == wxPRINT_MODE_PRINTER))
1719     {
1720         wxString command;
1721         command += data->GetPrinterCommand();
1722         command += wxT(" ");
1723         command += data->GetPrinterOptions();
1724         command += wxT(" ");
1725         command += m_printData.GetFilename();
1726
1727         wxExecute( command, true );
1728         wxRemoveFile( m_printData.GetFilename() );
1729     }
1730 #endif
1731 }
1732
1733 void wxPostScriptDC::StartPage()
1734 {
1735     wxCHECK_RET( m_ok, wxT("invalid postscript dc") );
1736
1737     PsPrintf( wxT("%%%%Page: %d\n"), wxPageNumber++ );
1738
1739     //  What is this one supposed to do? RR.
1740 //  *m_pstream << "matrix currentmatrix\n";
1741
1742     // Added by Chris Breeze
1743
1744     // Each page starts with an "initgraphics" which resets the
1745     // transformation and so we need to reset the origin
1746     // (and rotate the page for landscape printing)
1747
1748     // Output scaling
1749     wxCoord translate_x, translate_y;
1750     double scale_x, scale_y;
1751
1752     wxPostScriptPrintNativeData *data =
1753         (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1754
1755     translate_x = (wxCoord)data->GetPrinterTranslateX();
1756     translate_y = (wxCoord)data->GetPrinterTranslateY();
1757
1758     scale_x = data->GetPrinterScaleX();
1759     scale_y = data->GetPrinterScaleY();
1760
1761     if (m_printData.GetOrientation() == wxLANDSCAPE)
1762     {
1763         int h;
1764         GetSize( (int*) NULL, &h );
1765         translate_y -= h;
1766         PsPrint( "90 rotate\n" );
1767         // I copied this one from a PostScript tutorial, but to no avail. RR.
1768         // PsPrint( "90 rotate llx neg ury nef translate\n" );
1769     }
1770
1771     char buffer[100];
1772     sprintf( buffer, "%.8f %.8f scale\n", scale_x / ms_PSScaleFactor,
1773             scale_y / ms_PSScaleFactor);
1774     for (int i = 0; i < 100; i++)
1775         if (buffer[i] == ',') buffer[i] = '.';
1776     PsPrint( buffer );
1777
1778     PsPrintf( wxT("%d %d translate\n"), translate_x, translate_y );
1779 }
1780
1781 void wxPostScriptDC::EndPage ()
1782 {
1783     wxCHECK_RET( m_ok , wxT("invalid postscript dc") );
1784
1785     PsPrint( "showpage\n" );
1786 }
1787
1788 bool wxPostScriptDC::DoBlit( wxCoord xdest, wxCoord ydest,
1789                            wxCoord fwidth, wxCoord fheight,
1790                            wxDC *source,
1791                            wxCoord xsrc, wxCoord ysrc,
1792                            int rop, bool WXUNUSED(useMask), wxCoord WXUNUSED(xsrcMask), wxCoord WXUNUSED(ysrcMask) )
1793 {
1794     wxCHECK_MSG( m_ok, false, wxT("invalid postscript dc") );
1795
1796     wxCHECK_MSG( source, false, wxT("invalid source dc") );
1797
1798     /* blit into a bitmap */
1799     wxBitmap bitmap( (int)fwidth, (int)fheight );
1800     wxMemoryDC memDC;
1801     memDC.SelectObject(bitmap);
1802     memDC.Blit(0, 0, fwidth, fheight, source, xsrc, ysrc, rop); /* TODO: Blit transparently? */
1803     memDC.SelectObject(wxNullBitmap);
1804
1805     /* draw bitmap. scaling and positioning is done there */
1806     DrawBitmap( bitmap, xdest, ydest );
1807
1808     return true;
1809 }
1810
1811 wxCoord wxPostScriptDC::GetCharHeight() const
1812 {
1813     if (m_font.Ok())
1814         return m_font.GetPointSize();
1815     else
1816         return 12;
1817 }
1818
1819 void wxPostScriptDC::DoGetTextExtent(const wxString& string,
1820                                      wxCoord *x, wxCoord *y,
1821                                      wxCoord *descent, wxCoord *externalLeading,
1822                                      wxFont *theFont ) const
1823 {
1824     wxFont *fontToUse = theFont;
1825
1826     if (!fontToUse) fontToUse = (wxFont*) &m_font;
1827
1828     wxCHECK_RET( fontToUse, wxT("GetTextExtent: no font defined") );
1829
1830     if (string.empty())
1831     {
1832         if (x) (*x) = 0;
1833         if (y) (*y) = 0;
1834         if (descent) (*descent) = 0;
1835         if (externalLeading) (*externalLeading) = 0;
1836         return;
1837     }
1838
1839    // GTK 2.0
1840
1841     const wxWX2MBbuf strbuf = string.mb_str();
1842
1843 #if !wxUSE_AFM_FOR_POSTSCRIPT
1844     /* Provide a VERY rough estimate (avoid using it).
1845      * Produces accurate results for mono-spaced font
1846      * such as Courier (aka wxMODERN) */
1847
1848     int height = 12;
1849     if (fontToUse)
1850     {
1851         height = fontToUse->GetPointSize();
1852     }
1853     if ( x )
1854         *x = strlen (strbuf) * height * 72 / 120;
1855     if ( y )
1856         *y = (wxCoord) (height * 1.32);    /* allow for descender */
1857     if (descent) *descent = 0;
1858     if (externalLeading) *externalLeading = 0;
1859 #else
1860
1861     /* method for calculating string widths in postscript:
1862     /  read in the AFM (adobe font metrics) file for the
1863     /  actual font, parse it and extract the character widths
1864     /  and also the descender. this may be improved, but for now
1865     /  it works well. the AFM file is only read in if the
1866     /  font is changed. this may be chached in the future.
1867     /  calls to GetTextExtent with the font unchanged are rather
1868     /  efficient!!!
1869     /
1870     /  for each font and style used there is an AFM file necessary.
1871     /  currently i have only files for the roman font family.
1872     /  I try to get files for the other ones!
1873     /
1874     /  CAVE: the size of the string is currently always calculated
1875     /        in 'points' (1/72 of an inch). this should later on be
1876     /        changed to depend on the mapping mode.
1877     /  CAVE: the path to the AFM files must be set before calling this
1878     /        function. this is usually done by a call like the following:
1879     /        wxSetAFMPath("d:\\wxw161\\afm\\");
1880     /
1881     /  example:
1882     /
1883     /    wxPostScriptDC dc(NULL, true);
1884     /    if (dc.Ok()){
1885     /      wxSetAFMPath("d:\\wxw161\\afm\\");
1886     /      dc.StartDoc("Test");
1887     /      dc.StartPage();
1888     /      wxCoord w,h;
1889     /      dc.SetFont(new wxFont(10, wxROMAN, wxNORMAL, wxNORMAL));
1890     /      dc.GetTextExtent("Hallo",&w,&h);
1891     /      dc.EndPage();
1892     /      dc.EndDoc();
1893     /    }
1894     /
1895     /  by steve (stefan.hammes@urz.uni-heidelberg.de)
1896     /  created: 10.09.94
1897     /  updated: 14.05.95 */
1898
1899     /* these static vars are for storing the state between calls */
1900     static int lastFamily= INT_MIN;
1901     static int lastSize= INT_MIN;
1902     static int lastStyle= INT_MIN;
1903     static int lastWeight= INT_MIN;
1904     static int lastDescender = INT_MIN;
1905     static int lastWidths[256]; /* widths of the characters */
1906
1907     double UnderlinePosition = 0.0;
1908     double UnderlineThickness = 0.0;
1909
1910     // Get actual parameters
1911     int Family = fontToUse->GetFamily();
1912     int Size =   fontToUse->GetPointSize();
1913     int Style =  fontToUse->GetStyle();
1914     int Weight = fontToUse->GetWeight();
1915
1916     // If we have another font, read the font-metrics
1917     if (Family!=lastFamily || Size!=lastSize || Style!=lastStyle || Weight!=lastWeight)
1918     {
1919         // Store actual values
1920         lastFamily = Family;
1921         lastSize =   Size;
1922         lastStyle =  Style;
1923         lastWeight = Weight;
1924
1925         const wxChar *name;
1926
1927         switch (Family)
1928         {
1929             case wxMODERN:
1930             case wxTELETYPE:
1931             {
1932                 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBoO.afm");
1933                 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("CourBo.afm");
1934                 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("CourO.afm");
1935                 else name = wxT("Cour.afm");
1936                 break;
1937             }
1938             case wxROMAN:
1939             {
1940                 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBoO.afm");
1941                 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("TimesBo.afm");
1942                 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("TimesO.afm");
1943                 else name = wxT("TimesRo.afm");
1944                 break;
1945             }
1946             case wxSCRIPT:
1947             {
1948                 name = wxT("Zapf.afm");
1949                 break;
1950             }
1951             case wxSWISS:
1952             default:
1953             {
1954                 if ((Style == wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBoO.afm");
1955                 else if ((Style != wxITALIC) && (Weight == wxBOLD)) name = wxT("HelvBo.afm");
1956                 else if ((Style == wxITALIC) && (Weight != wxBOLD)) name = wxT("HelvO.afm");
1957                 else name = wxT("Helv.afm");
1958                 break;
1959             }
1960         }
1961
1962         FILE *afmFile = NULL;
1963
1964         // Get the directory of the AFM files
1965         wxString afmName;
1966
1967         // VZ: I don't know if the cast always works under Unix but it clearly
1968         //     never does under Windows where the pointer is
1969         //     wxWindowsPrintNativeData and so calling GetFontMetricPath() on
1970         //     it just crashes
1971 #ifndef __WIN32__
1972         wxPostScriptPrintNativeData *data =
1973             (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
1974
1975         if (!data->GetFontMetricPath().empty())
1976         {
1977             afmName = data->GetFontMetricPath();
1978             afmName << wxFILE_SEP_PATH << name;
1979         }
1980 #endif // __WIN32__
1981
1982         if ( !afmName.empty() )
1983             afmFile = wxFopen(afmName, wxT("r"));
1984
1985         if ( !afmFile )
1986         {
1987         }
1988
1989         if ( !afmFile )
1990         {
1991 #if defined(__UNIX__) && !defined(__VMS__)
1992            afmName = wxGetDataDir();
1993 #else // !__UNIX__
1994            afmName = wxStandardPaths::Get().GetDataDir();
1995 #endif // __UNIX__/!__UNIX__
1996
1997            afmName <<  wxFILE_SEP_PATH
1998 #if defined(__LINUX__) || defined(__FREEBSD__)
1999                    << wxT("gs_afm") << wxFILE_SEP_PATH
2000 #else
2001                    << wxT("afm") << wxFILE_SEP_PATH
2002 #endif
2003                    << name;
2004            afmFile = wxFopen(afmName,wxT("r"));
2005         }
2006
2007         /* 2. open and process the file
2008            /  a short explanation of the AFM format:
2009            /  we have for each character a line, which gives its size
2010            /  e.g.:
2011            /
2012            /    C 63 ; WX 444 ; N question ; B 49 -14 395 676 ;
2013            /
2014            /  that means, we have a character with ascii code 63, and width
2015            /  (444/1000 * fontSize) points.
2016            /  the other data is ignored for now!
2017            /
2018            /  when the font has changed, we read in the right AFM file and store the
2019            /  character widths in an array, which is processed below (see point 3.). */
2020         if (afmFile==NULL)
2021         {
2022             wxLogDebug( wxT("GetTextExtent: can't open AFM file '%s'"), afmName.c_str() );
2023             wxLogDebug( wxT("               using approximate values"));
2024             for (int i=0; i<256; i++) lastWidths[i] = 500; /* an approximate value */
2025             lastDescender = -150; /* dito. */
2026         }
2027         else
2028         {
2029             /* init the widths array */
2030             for(int i=0; i<256; i++) lastWidths[i] = INT_MIN;
2031             /* some variables for holding parts of a line */
2032             char cString[10], semiString[10], WXString[10];
2033             char descString[20];
2034             char upString[30], utString[30];
2035             char encString[50];
2036             char line[256];
2037             int ascii,cWidth;
2038             /* read in the file and parse it */
2039             while(fgets(line,sizeof(line),afmFile)!=NULL)
2040             {
2041                 /* A.) check for descender definition */
2042                 if (strncmp(line,"Descender",9)==0)
2043                 {
2044                     if ((sscanf(line,"%s%d",descString,&lastDescender)!=2) ||
2045                             (strcmp(descString,"Descender")!=0))
2046                     {
2047                         wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad descender)"), afmName.c_str(),line );
2048                     }
2049                 }
2050                 /* JC 1.) check for UnderlinePosition */
2051                 else if(strncmp(line,"UnderlinePosition",17)==0)
2052                 {
2053                     if ((sscanf(line,"%s%lf",upString,&UnderlinePosition)!=2) ||
2054                             (strcmp(upString,"UnderlinePosition")!=0))
2055                     {
2056                         wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlinePosition)"), afmName.c_str(), line );
2057                     }
2058                 }
2059                 /* JC 2.) check for UnderlineThickness */
2060                 else if(strncmp(line,"UnderlineThickness",18)==0)
2061                 {
2062                     if ((sscanf(line,"%s%lf",utString,&UnderlineThickness)!=2) ||
2063                             (strcmp(utString,"UnderlineThickness")!=0))
2064                     {
2065                         wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad UnderlineThickness)"), afmName.c_str(), line );
2066                     }
2067                 }
2068                 /* JC 3.) check for EncodingScheme */
2069                 else if(strncmp(line,"EncodingScheme",14)==0)
2070                 {
2071                     if ((sscanf(line,"%s%s",utString,encString)!=2) ||
2072                             (strcmp(utString,"EncodingScheme")!=0))
2073                     {
2074                         wxLogDebug( wxT("AFM-file '%s': line '%s' has error (bad EncodingScheme)"), afmName.c_str(), line );
2075                     }
2076                     else if (strncmp(encString, "AdobeStandardEncoding", 21))
2077                     {
2078                         wxLogDebug( wxT("AFM-file '%s': line '%s' has error (unsupported EncodingScheme %s)"),
2079                                 afmName.c_str(),line, encString);
2080                     }
2081                 }
2082                 /* B.) check for char-width */
2083                 else if(strncmp(line,"C ",2)==0)
2084                 {
2085                     if (sscanf(line,"%s%d%s%s%d",cString,&ascii,semiString,WXString,&cWidth)!=5)
2086                     {
2087                         wxLogDebug(wxT("AFM-file '%s': line '%s' has an error (bad character width)"),afmName.c_str(),line);
2088                     }
2089                     if(strcmp(cString,"C")!=0 || strcmp(semiString,";")!=0 || strcmp(WXString,"WX")!=0)
2090                     {
2091                         wxLogDebug(wxT("AFM-file '%s': line '%s' has a format error"),afmName.c_str(),line);
2092                     }
2093                     /* printf("            char '%c'=%d has width '%d'\n",ascii,ascii,cWidth); */
2094                     if (ascii>=0 && ascii<256)
2095                     {
2096                         lastWidths[ascii] = cWidth; /* store width */
2097                     }
2098                     else
2099                     {
2100                         /* MATTHEW: this happens a lot; don't print an error */
2101                         /* wxLogDebug("AFM-file '%s': ASCII value %d out of range",afmName.c_str(),ascii); */
2102                     }
2103                 }
2104                 /* C.) ignore other entries. */
2105             }
2106             fclose(afmFile);
2107         }
2108         /* hack to compute correct values for german 'Umlaute'
2109            /  the correct way would be to map the character names
2110            /  like 'adieresis' to corresp. positions of ISOEnc and read
2111            /  these values from AFM files, too. Maybe later ... */
2112
2113         // NB: casts to int are needed to suppress gcc 3.3 warnings
2114         lastWidths[196] = lastWidths[(int)'A'];  // Ä
2115         lastWidths[228] = lastWidths[(int)'a'];  // ä
2116         lastWidths[214] = lastWidths[(int)'O'];  // Ö
2117         lastWidths[246] = lastWidths[(int)'o'];  // ö
2118         lastWidths[220] = lastWidths[(int)'U'];  // Ü
2119         lastWidths[252] = lastWidths[(int)'u'];  // ü
2120         lastWidths[223] = lastWidths[(int)251];  // ß
2121
2122         /* JC: calculate UnderlineThickness/UnderlinePosition */
2123
2124         // VS: dirty, but is there any better solution?
2125         double *pt;
2126         pt = (double*) &m_underlinePosition;
2127         *pt = LogicalToDeviceYRel((wxCoord)(UnderlinePosition * fontToUse->GetPointSize())) / 1000.0f;
2128         pt = (double*) &m_underlineThickness;
2129         *pt = LogicalToDeviceYRel((wxCoord)(UnderlineThickness * fontToUse->GetPointSize())) / 1000.0f;
2130
2131     }
2132
2133
2134     /* 3. now the font metrics are read in, calc size this
2135        /  is done by adding the widths of the characters in the
2136        /  string. they are given in 1/1000 of the size! */
2137
2138     long sum=0;
2139     wxCoord height=Size; /* by default */
2140     unsigned char *p;
2141     for(p=(unsigned char *)wxMBSTRINGCAST strbuf; *p; p++)
2142     {
2143         if(lastWidths[*p]== INT_MIN)
2144         {
2145             wxLogDebug(wxT("GetTextExtent: undefined width for character '%c' (%d)"), *p,*p);
2146             sum += lastWidths[(unsigned char)' ']; /* assume space */
2147         }
2148         else
2149         {
2150             sum += lastWidths[*p];
2151         }
2152     }
2153
2154     double widthSum = sum;
2155     widthSum *= Size;
2156     widthSum /= 1000.0F;
2157
2158     /* add descender to height (it is usually a negative value) */
2159     //if (lastDescender != INT_MIN)
2160     //{
2161     //    height += (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2162     //}
2163     // - commented by V. Slavik - height already contains descender in it
2164     //   (judging from few experiments)
2165
2166     /* return size values */
2167     if ( x )
2168         *x = (wxCoord)widthSum;
2169     if ( y )
2170         *y = height;
2171
2172     /* return other parameters */
2173     if (descent)
2174     {
2175         if(lastDescender!=INT_MIN)
2176         {
2177             *descent = (wxCoord)(((-lastDescender)/1000.0F) * Size); /* MATTHEW: forgot scale */
2178         }
2179         else
2180         {
2181             *descent = 0;
2182         }
2183     }
2184
2185     /* currently no idea how to calculate this! */
2186     if (externalLeading) *externalLeading = 0;
2187 #endif
2188     // Use AFM
2189 }
2190
2191 // print postscript datas via required method (file, stream)
2192 void wxPostScriptDC::PsPrintf( const wxChar* fmt, ... )
2193 {
2194     va_list argptr;
2195     va_start(argptr, fmt);
2196
2197     PsPrint( wxString::FormatV( fmt, argptr ).c_str() );
2198 }
2199
2200 void wxPostScriptDC::PsPrint( const char* psdata )
2201 {
2202     wxPostScriptPrintNativeData *data =
2203         (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2204
2205     switch (m_printData.GetPrintMode())
2206     {
2207 #if wxUSE_STREAMS
2208         // append to output stream
2209         case wxPRINT_MODE_STREAM:
2210             {
2211                 wxOutputStream* outputstream = data->GetOutputStream();
2212                 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2213                 outputstream->Write( psdata, strlen( psdata ) );
2214             }
2215             break;
2216 #endif // wxUSE_STREAMS
2217
2218         // save data into file
2219         default:
2220             wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2221             fwrite( psdata, 1, strlen( psdata ), m_pstream );
2222     }
2223 }
2224
2225 void wxPostScriptDC::PsPrint( int ch )
2226 {
2227     wxPostScriptPrintNativeData *data =
2228         (wxPostScriptPrintNativeData *) m_printData.GetNativeData();
2229
2230     switch (m_printData.GetPrintMode())
2231     {
2232 #if wxUSE_STREAMS
2233         // append to output stream
2234         case wxPRINT_MODE_STREAM:
2235             {
2236                 wxOutputStream* outputstream = data->GetOutputStream();
2237                 wxCHECK_RET( outputstream, wxT("invalid outputstream") );
2238                 outputstream->PutC( (char)ch );
2239             }
2240             break;
2241 #endif // wxUSE_STREAMS
2242
2243         // save data into file
2244         default:
2245             wxCHECK_RET( m_pstream, wxT("invalid postscript dc") );
2246             fputc( ch, m_pstream );
2247     }
2248 }
2249
2250 #endif
2251   // wxUSE_POSTSCRIPT
2252
2253 #endif
2254   // wxUSE_PRINTING_ARCHITECTURE
2255
2256
2257 // vi:sts=4:sw=4:et