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