src/mac/carbon/printmac.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/mac/carbon/printwin.cpp
   3 // Purpose:     wxMacPrinter framework
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #if wxUSE_PRINTING_ARCHITECTURE
  16
  17 #ifdef __BORLANDC__
  18     #pragma hdrstop
  19 #endif
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/utils.h"
  23     #include "wx/dc.h"
  24     #include "wx/app.h"
  25     #include "wx/msgdlg.h"
  26     #include "wx/dcprint.h"
  27     #include "wx/math.h"
  28 #endif
  29
  30 #include "wx/mac/uma.h"
  31
  32 #include "wx/mac/printmac.h"
  33 #include "wx/mac/private/print.h"
  34
  35 #include "wx/printdlg.h"
  36 #include "wx/paper.h"
  37 #include "wx/mac/printdlg.h"
  38
  39 #include <stdlib.h>
  40
  41 IMPLEMENT_DYNAMIC_CLASS(wxMacCarbonPrintData, wxPrintNativeDataBase)
  42 IMPLEMENT_DYNAMIC_CLASS(wxMacPrinter, wxPrinterBase)
  43 IMPLEMENT_CLASS(wxMacPrintPreview, wxPrintPreviewBase)
  44
  45 bool wxMacCarbonPrintData::IsOk() const
  46 {
  47     return (m_macPageFormat != kPMNoPageFormat) && (m_macPrintSettings != kPMNoPrintSettings) && (m_macPrintSession != kPMNoReference);
  48 }
  49 wxMacCarbonPrintData::wxMacCarbonPrintData()
  50 {
  51     m_macPageFormat = kPMNoPageFormat;
  52     m_macPrintSettings = kPMNoPrintSettings;
  53     m_macPrintSession = kPMNoReference ;
  54     ValidateOrCreate() ;
  55 }
  56
  57 wxMacCarbonPrintData::~wxMacCarbonPrintData()
  58 {
  59     if (m_macPageFormat != kPMNoPageFormat)
  60     {
  61         (void)PMRelease(m_macPageFormat);
  62         m_macPageFormat = kPMNoPageFormat;
  63     }
  64
  65     if (m_macPrintSettings != kPMNoPrintSettings)
  66     {
  67         (void)PMRelease(m_macPrintSettings);
  68         m_macPrintSettings = kPMNoPrintSettings;
  69     }
  70
  71     if ( m_macPrintSession != kPMNoReference )
  72     {
  73         (void)PMRelease(m_macPrintSession);
  74         m_macPrintSession = kPMNoReference;
  75     }
  76 }
  77
  78 void wxMacCarbonPrintData::ValidateOrCreate()
  79 {
  80     OSStatus err = noErr ;
  81     if ( m_macPrintSession == kPMNoReference )
  82     {
  83         err = PMCreateSession( (PMPrintSession *) &m_macPrintSession ) ;
  84     }
  85     //  Set up a valid PageFormat object.
  86     if ( m_macPageFormat == kPMNoPageFormat)
  87     {
  88         err = PMCreatePageFormat((PMPageFormat *) &m_macPageFormat);
  89
  90         //  Note that PMPageFormat is not session-specific, but calling
  91         //  PMSessionDefaultPageFormat assigns values specific to the printer
  92         //  associated with the current printing session.
  93         if ((err == noErr) &&
  94             ( m_macPageFormat != kPMNoPageFormat))
  95         {
  96             err = PMSessionDefaultPageFormat((PMPrintSession) m_macPrintSession,
  97                 (PMPageFormat) m_macPageFormat);
  98         }
  99     }
 100     else
 101     {
 102         err = PMSessionValidatePageFormat((PMPrintSession) m_macPrintSession,
 103             (PMPageFormat) m_macPageFormat,
 104             kPMDontWantBoolean);
 105     }
 106
 107     //  Set up a valid PrintSettings object.
 108     if ( m_macPrintSettings == kPMNoPrintSettings)
 109     {
 110         err = PMCreatePrintSettings((PMPrintSettings *) &m_macPrintSettings);
 111
 112         //  Note that PMPrintSettings is not session-specific, but calling
 113         //  PMSessionDefaultPrintSettings assigns values specific to the printer
 114         //  associated with the current printing session.
 115         if ((err == noErr) &&
 116             ( m_macPrintSettings != kPMNoPrintSettings))
 117         {
 118             err = PMSessionDefaultPrintSettings((PMPrintSession) m_macPrintSession,
 119                 (PMPrintSettings) m_macPrintSettings);
 120         }
 121     }
 122     else
 123     {
 124         err = PMSessionValidatePrintSettings((PMPrintSession) m_macPrintSession,
 125             (PMPrintSettings) m_macPrintSettings,
 126             kPMDontWantBoolean);
 127     }
 128 }
 129
 130 bool wxMacCarbonPrintData::TransferFrom( const wxPrintData &data )
 131 {
 132     ValidateOrCreate() ;
 133     PMSetCopies( (PMPrintSettings) m_macPrintSettings , data.GetNoCopies() , false ) ;
 134     if ( data.IsOrientationReversed() )
 135         PMSetOrientation( (PMPageFormat) m_macPageFormat , ( data.GetOrientation() == wxLANDSCAPE ) ?
 136             kPMReverseLandscape : kPMReversePortrait , false ) ;
 137     else
 138         PMSetOrientation( (PMPageFormat) m_macPageFormat , ( data.GetOrientation() == wxLANDSCAPE ) ?
 139             kPMLandscape : kPMPortrait , false ) ;
 140     // collate cannot be set
 141 #if 0 // not yet tested
 142     if ( !m_printerName.empty() )
 143         PMSessionSetCurrentPrinter( (PMPrintSession) m_macPrintSession , wxMacCFStringHolder( m_printerName , wxFont::GetDefaultEncoding() ) ) ;
 144 #endif
 145 #ifndef __LP64__
 146     PMColorMode color ;
 147     PMGetColorMode(  (PMPrintSettings) m_macPrintSettings, &color ) ;
 148     if ( data.GetColour() )
 149     {
 150         if ( color == kPMBlackAndWhite )
 151             PMSetColorMode( (PMPrintSettings) m_macPrintSettings, kPMColor ) ;
 152     }
 153     else
 154         PMSetColorMode( (PMPrintSettings) m_macPrintSettings, kPMBlackAndWhite ) ;
 155 #endif
 156
 157 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 158     if ( PMSetDuplex!=NULL )
 159     {
 160         PMDuplexMode mode = 0 ;
 161         switch( data.GetDuplex() )
 162         {
 163             case wxDUPLEX_HORIZONTAL :
 164                 mode = kPMDuplexNoTumble ;
 165                 break ;
 166             case wxDUPLEX_VERTICAL :
 167                 mode = kPMDuplexTumble ;
 168                 break ;
 169             case wxDUPLEX_SIMPLEX :
 170             default :
 171                 mode = kPMDuplexNone ;
 172                 break ;
 173         }
 174         PMSetDuplex( (PMPrintSettings) m_macPrintSettings, mode ) ;
 175     }
 176 #endif
 177     // PMQualityMode not yet accessible via API
 178     // todo paperSize
 179
 180     PMResolution res;
 181     PMPrinter printer;
 182     PMSessionGetCurrentPrinter(m_macPrintSession, &printer);
 183 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
 184     PMPrinterGetOutputResolution( printer,
 185         (PMPrintSettings) m_macPrintSettings,  &res) ;
 186     // TODO transfer ? into page format ?
 187 #else
 188     PMTag tag = kPMMaxSquareResolution;
 189     PMPrinterGetPrinterResolution(printer, tag, &res);
 190     PMSetResolution((PMPageFormat) m_macPageFormat, &res);
 191 #endif
 192     // after setting the new resolution the format has to be updated, otherwise the page rect remains
 193     // at the 'old' scaling
 194     PMSessionValidatePageFormat((PMPrintSession) m_macPrintSession,
 195             (PMPageFormat) m_macPageFormat,
 196             kPMDontWantBoolean) ;
 197
 198     return true ;
 199 }
 200
 201 bool wxMacCarbonPrintData::TransferTo( wxPrintData &data )
 202 {
 203     OSStatus err = noErr ;
 204
 205     UInt32 copies ;
 206     err = PMGetCopies( m_macPrintSettings , &copies ) ;
 207     if ( err == noErr )
 208         data.SetNoCopies( copies ) ;
 209
 210     PMOrientation orientation ;
 211     err = PMGetOrientation(  m_macPageFormat , &orientation ) ;
 212     if ( err == noErr )
 213     {
 214         if ( orientation == kPMPortrait || orientation == kPMReversePortrait )
 215         {
 216             data.SetOrientation( wxPORTRAIT  );
 217             data.SetOrientationReversed( orientation == kPMReversePortrait );
 218         }
 219         else
 220         {
 221             data.SetOrientation( wxLANDSCAPE );
 222             data.SetOrientationReversed( orientation == kPMReverseLandscape );
 223         }
 224     }
 225
 226     // collate cannot be set
 227 #if 0
 228     {
 229         wxMacCFStringHolder name ;
 230         PMPrinter printer ;
 231         PMSessionGetCurrentPrinter( m_macPrintSession ,
 232             &printer ) ;
 233         m_printerName = name.AsString() ;
 234     }
 235 #endif
 236
 237 #ifndef __LP64__
 238     PMColorMode color ;
 239     err = PMGetColorMode( m_macPrintSettings, &color ) ;
 240     if ( err == noErr )
 241         data.SetColour( !(color == kPMBlackAndWhite) ) ;
 242 #endif
 243 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4
 244     if ( PMGetDuplex!=NULL )
 245     {
 246         PMDuplexMode mode = 0 ;
 247         PMGetDuplex( (PMPrintSettings) m_macPrintSettings, &mode ) ;
 248         switch( mode )
 249         {
 250             case kPMDuplexNoTumble :
 251                 data.SetDuplex(wxDUPLEX_HORIZONTAL);
 252                 break ;
 253             case kPMDuplexTumble :
 254                 data.SetDuplex(wxDUPLEX_VERTICAL);
 255                 break ;
 256             case kPMDuplexNone :
 257             default :
 258                 data.SetDuplex(wxDUPLEX_SIMPLEX);
 259                 break ;
 260         }
 261     }
 262 #endif
 263     // PMQualityMode not yet accessible via API
 264
 265     PMPaper paper ;
 266     PMGetPageFormatPaper( m_macPageFormat, &paper );
 267
 268     PMRect rPaper;
 269     err = PMGetUnadjustedPaperRect( m_macPageFormat, &rPaper);
 270     if ( err == noErr )
 271     {
 272         wxSize sz((int)(( rPaper.right - rPaper.left ) * pt2mm + 0.5 ) ,
 273              (int)(( rPaper.bottom - rPaper.top ) * pt2mm + 0.5 ));
 274         data.SetPaperSize(sz);
 275         wxPaperSize id = wxThePrintPaperDatabase->GetSize(wxSize(sz.x* 10, sz.y * 10));
 276         if (id != wxPAPER_NONE)
 277         {
 278             data.SetPaperId(id);
 279         }
 280     }
 281     return true ;
 282 }
 283
 284 void wxMacCarbonPrintData::TransferFrom( wxPageSetupData *data )
 285 {
 286     // should we setup the page rect here ?
 287     // since MacOS sometimes has two same paper rects with different
 288     // page rects we could make it roundtrip safe perhaps
 289 }
 290
 291 void wxMacCarbonPrintData::TransferTo( wxPageSetupData* data )
 292 {
 293     PMRect rPaper;
 294     OSStatus err = PMGetUnadjustedPaperRect(m_macPageFormat, &rPaper);
 295     if ( err == noErr )
 296     {
 297         wxSize sz((int)(( rPaper.right - rPaper.left ) * pt2mm + 0.5 ) ,
 298              (int)(( rPaper.bottom - rPaper.top ) * pt2mm + 0.5 ));
 299         data->SetPaperSize(sz);
 300
 301         PMRect rPage ;
 302         err = PMGetUnadjustedPageRect(m_macPageFormat , &rPage ) ;
 303         if ( err == noErr )
 304         {
 305             data->SetMinMarginTopLeft( wxPoint (
 306                 (int)(((double) rPage.left - rPaper.left ) * pt2mm) ,
 307                 (int)(((double) rPage.top - rPaper.top ) * pt2mm) ) ) ;
 308
 309             data->SetMinMarginBottomRight( wxPoint (
 310                 (wxCoord)(((double) rPaper.right - rPage.right ) * pt2mm),
 311                 (wxCoord)(((double) rPaper.bottom - rPage.bottom ) * pt2mm)) ) ;
 312
 313             if ( data->GetMarginTopLeft().x < data->GetMinMarginTopLeft().x )
 314                 data->SetMarginTopLeft( wxPoint( data->GetMinMarginTopLeft().x ,
 315                     data->GetMarginTopLeft().y ) ) ;
 316
 317             if ( data->GetMarginBottomRight().x < data->GetMinMarginBottomRight().x )
 318                 data->SetMarginBottomRight( wxPoint( data->GetMinMarginBottomRight().x ,
 319                     data->GetMarginBottomRight().y ) );
 320
 321             if ( data->GetMarginTopLeft().y < data->GetMinMarginTopLeft().y )
 322                 data->SetMarginTopLeft( wxPoint( data->GetMarginTopLeft().x , data->GetMinMarginTopLeft().y ) );
 323
 324             if ( data->GetMarginBottomRight().y < data->GetMinMarginBottomRight().y )
 325                 data->SetMarginBottomRight( wxPoint( data->GetMarginBottomRight().x ,
 326                     data->GetMinMarginBottomRight().y) );
 327         }
 328     }
 329 }
 330
 331 void wxMacCarbonPrintData::TransferTo( wxPrintDialogData* data )
 332 {
 333     UInt32 minPage , maxPage ;
 334     PMGetPageRange( m_macPrintSettings , &minPage , &maxPage ) ;
 335     data->SetMinPage( minPage ) ;
 336     data->SetMaxPage( maxPage ) ;
 337     UInt32 copies ;
 338     PMGetCopies( m_macPrintSettings , &copies ) ;
 339     data->SetNoCopies( copies ) ;
 340     UInt32 from , to ;
 341     PMGetFirstPage( m_macPrintSettings , &from ) ;
 342     PMGetLastPage( m_macPrintSettings , &to ) ;
 343     if ( to >= 0x7FFFFFFF ) //  due to an OS Bug we don't get back kPMPrintAllPages
 344     {
 345         data->SetAllPages( true ) ;
 346         // This means all pages, more or less
 347         data->SetFromPage(1);
 348         data->SetToPage(32000);
 349     }
 350     else
 351     {
 352         data->SetFromPage( from ) ;
 353         data->SetToPage( to ) ;
 354         data->SetAllPages( false );
 355     }
 356 }
 357
 358 void wxMacCarbonPrintData::TransferFrom( wxPrintDialogData* data )
 359 {
 360     PMSetPageRange( m_macPrintSettings , data->GetMinPage() , data->GetMaxPage() ) ;
 361     PMSetCopies( m_macPrintSettings , data->GetNoCopies() , false ) ;
 362     PMSetFirstPage( m_macPrintSettings , data->GetFromPage() , false ) ;
 363
 364     if (data->GetAllPages() || data->GetFromPage() == 0)
 365         PMSetLastPage( m_macPrintSettings , (UInt32) kPMPrintAllPages, true ) ;
 366     else
 367         PMSetLastPage( m_macPrintSettings , (UInt32) data->GetToPage() , false ) ;
 368 }
 369
 370 /*
 371 * Printer
 372 */
 373
 374 wxMacPrinter::wxMacPrinter(wxPrintDialogData *data):
 375 wxPrinterBase(data)
 376 {
 377 }
 378
 379 wxMacPrinter::~wxMacPrinter(void)
 380 {
 381 }
 382
 383 bool wxMacPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
 384 {
 385     sm_abortIt = false;
 386     sm_abortWindow = NULL;
 387
 388     if (!printout)
 389         return false;
 390
 391     printout->SetIsPreview(false);
 392     if (m_printDialogData.GetMinPage() < 1)
 393         m_printDialogData.SetMinPage(1);
 394     if (m_printDialogData.GetMaxPage() < 1)
 395         m_printDialogData.SetMaxPage(9999);
 396
 397     // Create a suitable device context
 398     wxPrinterDC *dc = NULL;
 399     if (prompt)
 400     {
 401         wxMacPrintDialog dialog(parent, & m_printDialogData);
 402         if (dialog.ShowModal() == wxID_OK)
 403         {
 404             dc = wxDynamicCast(dialog.GetPrintDC(), wxPrinterDC);
 405             wxASSERT(dc);
 406             m_printDialogData = dialog.GetPrintDialogData();
 407         }
 408     }
 409     else
 410     {
 411         dc = new wxPrinterDC( m_printDialogData.GetPrintData() ) ;
 412     }
 413
 414     // May have pressed cancel.
 415     if (!dc || !dc->Ok())
 416     {
 417         if (dc)
 418             delete dc;
 419         return false;
 420     }
 421
 422     // on the mac we have always pixels as addressing mode with 72 dpi
 423     printout->SetPPIScreen(72, 72);
 424     PMResolution res;
 425     wxMacCarbonPrintData* nativeData = (wxMacCarbonPrintData*)
 426           (m_printDialogData.GetPrintData().GetNativeData());
 427 #if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_5
 428     PMPrinter printer;
 429     PMSessionGetCurrentPrinter(nativeData->m_macPrintSession, &printer);
 430     PMPrinterGetOutputResolution( printer, nativeData->m_macPrintSettings, &res) ;
 431 #else
 432     PMGetResolution((PMPageFormat) (nativeData->m_macPageFormat), &res);
 433 #endif
 434     printout->SetPPIPrinter(int(res.hRes), int(res.vRes));
 435
 436     // Set printout parameters
 437     printout->SetDC(dc);
 438
 439     int w, h;
 440     dc->GetSize(&w, &h);
 441     printout->SetPageSizePixels((int)w, (int)h);
 442     printout->SetPaperRectPixels(dc->GetPaperRect());
 443     wxCoord mw, mh;
 444     dc->GetSizeMM(&mw, &mh);
 445     printout->SetPageSizeMM((int)mw, (int)mh);
 446
 447     // Create an abort window
 448     wxBeginBusyCursor();
 449
 450     printout->OnPreparePrinting();
 451
 452     // Get some parameters from the printout, if defined
 453     int fromPage, toPage;
 454     int minPage, maxPage;
 455     printout->GetPageInfo(&minPage, &maxPage, &fromPage, &toPage);
 456
 457     if (maxPage == 0)
 458     {
 459         wxEndBusyCursor();
 460         return false;
 461     }
 462
 463     // Only set min and max, because from and to have been
 464     // set by the user
 465     m_printDialogData.SetMinPage(minPage);
 466     m_printDialogData.SetMaxPage(maxPage);
 467
 468     wxWindow *win = CreateAbortWindow(parent, printout);
 469     wxSafeYield(win,true);
 470
 471     if (!win)
 472     {
 473         wxEndBusyCursor();
 474         wxMessageBox(wxT("Sorry, could not create an abort dialog."), wxT("Print Error"), wxOK, parent);
 475         delete dc;
 476
 477         return false;
 478     }
 479
 480     sm_abortWindow = win;
 481     sm_abortWindow->Show(true);
 482     wxSafeYield(win,true);
 483
 484     printout->OnBeginPrinting();
 485
 486     bool keepGoing = true;
 487
 488     int copyCount;
 489     for (copyCount = 1; copyCount <= m_printDialogData.GetNoCopies(); copyCount ++)
 490     {
 491         if (!printout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
 492         {
 493             wxEndBusyCursor();
 494             wxMessageBox(wxT("Could not start printing."), wxT("Print Error"), wxOK, parent);
 495             break;
 496         }
 497         if (sm_abortIt)
 498             break;
 499
 500         int pn;
 501         for (pn = m_printDialogData.GetFromPage();
 502         keepGoing && (pn <= m_printDialogData.GetToPage()) && printout->HasPage(pn);
 503         pn++)
 504         {
 505             if (sm_abortIt)
 506             {
 507                 keepGoing = false;
 508                 break;
 509             }
 510             else
 511             {
 512 #if TARGET_CARBON
 513                 if ( UMAGetSystemVersion() >= 0x1000 )
 514 #endif
 515                 {
 516 #if !wxMAC_USE_CORE_GRAPHICS
 517                     GrafPtr thePort ;
 518                     GetPort( &thePort ) ;
 519 #endif
 520                     wxSafeYield(win,true);
 521 #if !wxMAC_USE_CORE_GRAPHICS
 522                     SetPort( thePort ) ;
 523 #endif
 524                 }
 525                 dc->StartPage();
 526                 keepGoing = printout->OnPrintPage(pn);
 527                 dc->EndPage();
 528             }
 529         }
 530         printout->OnEndDocument();
 531     }
 532
 533     printout->OnEndPrinting();
 534
 535     if (sm_abortWindow)
 536     {
 537         sm_abortWindow->Show(false);
 538         delete sm_abortWindow;
 539         sm_abortWindow = NULL;
 540     }
 541
 542     wxEndBusyCursor();
 543
 544     delete dc;
 545
 546     return true;
 547 }
 548
 549 wxDC* wxMacPrinter::PrintDialog(wxWindow *parent)
 550 {
 551     wxDC* dc = (wxDC*) NULL;
 552
 553     wxPrintDialog dialog(parent, & m_printDialogData);
 554     int ret = dialog.ShowModal();
 555
 556     if (ret == wxID_OK)
 557     {
 558         dc = dialog.GetPrintDC();
 559         m_printDialogData = dialog.GetPrintDialogData();
 560     }
 561
 562     return dc;
 563 }
 564
 565 bool wxMacPrinter::Setup(wxWindow *parent)
 566 {
 567 #if 0
 568     wxPrintDialog dialog(parent, & m_printDialogData);
 569     dialog.GetPrintDialogData().SetSetupDialog(true);
 570
 571     int ret = dialog.ShowModal();
 572
 573     if (ret == wxID_OK)
 574         m_printDialogData = dialog.GetPrintDialogData();
 575
 576     return (ret == wxID_OK);
 577 #endif
 578
 579     return wxID_CANCEL;
 580 }
 581
 582 /*
 583 * Print preview
 584 */
 585
 586 wxMacPrintPreview::wxMacPrintPreview(wxPrintout *printout,
 587                                      wxPrintout *printoutForPrinting,
 588                                      wxPrintDialogData *data)
 589                                      : wxPrintPreviewBase(printout, printoutForPrinting, data)
 590 {
 591     DetermineScaling();
 592 }
 593
 594 wxMacPrintPreview::wxMacPrintPreview(wxPrintout *printout, wxPrintout *printoutForPrinting, wxPrintData *data):
 595 wxPrintPreviewBase(printout, printoutForPrinting, data)
 596 {
 597     DetermineScaling();
 598 }
 599
 600 wxMacPrintPreview::~wxMacPrintPreview(void)
 601 {
 602 }
 603
 604 bool wxMacPrintPreview::Print(bool interactive)
 605 {
 606     if (!m_printPrintout)
 607         return false;
 608
 609     wxMacPrinter printer(&m_printDialogData);
 610     return printer.Print(m_previewFrame, m_printPrintout, interactive);
 611 }
 612
 613 void wxMacPrintPreview::DetermineScaling(void)
 614 {
 615     int screenWidth , screenHeight ;
 616     wxDisplaySize( &screenWidth , &screenHeight ) ;
 617
 618     wxSize ppiScreen( 72 , 72 ) ;
 619     wxSize ppiPrinter( 72 , 72 ) ;
 620
 621     // Note that with Leopard, screen dpi=72 is no longer a given
 622     m_previewPrintout->SetPPIScreen( ppiScreen.x , ppiScreen.y ) ;
 623
 624     wxCoord w , h ;
 625     wxCoord ww, hh;
 626     wxRect paperRect;
 627
 628     // Get a device context for the currently selected printer
 629     wxPrinterDC printerDC(m_printDialogData.GetPrintData());
 630     if (printerDC.Ok())
 631     {
 632         printerDC.GetSizeMM(&ww, &hh);
 633         printerDC.GetSize( &w , &h ) ;
 634         ppiPrinter = printerDC.GetPPI() ;
 635         paperRect = printerDC.GetPaperRect();
 636         m_isOk = true ;
 637     }
 638     else
 639     {
 640         // use some defaults
 641         w = 8 * 72 ;
 642         h = 11 * 72 ;
 643         ww = (wxCoord) (w * 25.4 / ppiPrinter.x) ;
 644         hh = (wxCoord) (h * 25.4 / ppiPrinter.y) ;
 645         paperRect = wxRect(0, 0, w, h);
 646         m_isOk = false ;
 647     }
 648     m_pageWidth = w;
 649     m_pageHeight = h;
 650
 651     m_previewPrintout->SetPageSizePixels(w , h) ;
 652     m_previewPrintout->SetPageSizeMM(ww, hh);
 653     m_previewPrintout->SetPaperRectPixels(paperRect);
 654     m_previewPrintout->SetPPIPrinter( ppiPrinter.x , ppiPrinter.y ) ;
 655
 656     m_previewScaleX = float(ppiScreen.x) / ppiPrinter.x;
 657     m_previewScaleY = float(ppiScreen.y) / ppiPrinter.y;
 658 }
 659
 660 #endif