src/common/prntbase.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/prntbase.cpp
   3 // Purpose:     Printing framework base class implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // Copyright:   (c) Julian Smart
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 // For compilers that support precompilation, includes "wx.h".
  12 #include "wx/wxprec.h"
  13
  14 #ifdef __BORLANDC__
  15     #pragma hdrstop
  16 #endif
  17
  18 #if wxUSE_PRINTING_ARCHITECTURE
  19
  20 #include "wx/dcprint.h"
  21
  22 #ifndef WX_PRECOMP
  23     #if defined(__WXMSW__)
  24         #include "wx/msw/wrapcdlg.h"
  25     #endif // MSW
  26     #include "wx/utils.h"
  27     #include "wx/dc.h"
  28     #include "wx/app.h"
  29     #include "wx/math.h"
  30     #include "wx/msgdlg.h"
  31     #include "wx/layout.h"
  32     #include "wx/choice.h"
  33     #include "wx/button.h"
  34     #include "wx/bmpbuttn.h"
  35     #include "wx/settings.h"
  36     #include "wx/dcmemory.h"
  37     #include "wx/dcclient.h"
  38     #include "wx/stattext.h"
  39     #include "wx/intl.h"
  40     #include "wx/textdlg.h"
  41     #include "wx/sizer.h"
  42     #include "wx/module.h"
  43 #endif // !WX_PRECOMP
  44
  45 #include "wx/prntbase.h"
  46 #include "wx/printdlg.h"
  47 #include "wx/print.h"
  48 #include "wx/dcprint.h"
  49 #include "wx/artprov.h"
  50
  51 #include <stdlib.h>
  52 #include <string.h>
  53
  54 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
  55 #include "wx/msw/printdlg.h"
  56 #include "wx/msw/dcprint.h"
  57 #elif defined(__WXMAC__)
  58 #include "wx/osx/printdlg.h"
  59 #include "wx/osx/private/print.h"
  60 #include "wx/osx/dcprint.h"
  61 #elif defined(__WXPM__)
  62 #include "wx/os2/dcprint.h"
  63 #include "wx/generic/prntdlgg.h"
  64 #else
  65 #include "wx/generic/prntdlgg.h"
  66 #include "wx/dcps.h"
  67 #endif
  68
  69 #ifdef __WXMSW__
  70     #ifndef __WIN32__
  71         #include <print.h>
  72     #endif
  73 #endif // __WXMSW__
  74
  75 //----------------------------------------------------------------------------
  76 // wxPrintFactory
  77 //----------------------------------------------------------------------------
  78
  79 wxPrintFactory *wxPrintFactory::m_factory = NULL;
  80
  81 void wxPrintFactory::SetPrintFactory( wxPrintFactory *factory )
  82 {
  83     if (wxPrintFactory::m_factory)
  84         delete wxPrintFactory::m_factory;
  85
  86     wxPrintFactory::m_factory = factory;
  87 }
  88
  89 wxPrintFactory *wxPrintFactory::GetFactory()
  90 {
  91     if (!wxPrintFactory::m_factory)
  92         wxPrintFactory::m_factory = new wxNativePrintFactory;
  93
  94     return wxPrintFactory::m_factory;
  95 }
  96
  97 //----------------------------------------------------------------------------
  98 // wxNativePrintFactory
  99 //----------------------------------------------------------------------------
 100
 101 wxPrinterBase *wxNativePrintFactory::CreatePrinter( wxPrintDialogData *data )
 102 {
 103 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 104     return new wxWindowsPrinter( data );
 105 #elif defined(__WXMAC__)
 106     return new wxMacPrinter( data );
 107 #elif defined(__WXPM__)
 108     return new wxOS2Printer( data );
 109 #else
 110     return new wxPostScriptPrinter( data );
 111 #endif
 112 }
 113
 114 wxPrintPreviewBase *wxNativePrintFactory::CreatePrintPreview( wxPrintout *preview,
 115     wxPrintout *printout, wxPrintDialogData *data )
 116 {
 117 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 118     return new wxWindowsPrintPreview( preview, printout, data );
 119 #elif defined(__WXMAC__)
 120     return new wxMacPrintPreview( preview, printout, data );
 121 #elif defined(__WXPM__)
 122     return new wxOS2PrintPreview( preview, printout, data );
 123 #else
 124     return new wxPostScriptPrintPreview( preview, printout, data );
 125 #endif
 126 }
 127
 128 wxPrintPreviewBase *wxNativePrintFactory::CreatePrintPreview( wxPrintout *preview,
 129     wxPrintout *printout, wxPrintData *data )
 130 {
 131 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 132     return new wxWindowsPrintPreview( preview, printout, data );
 133 #elif defined(__WXMAC__)
 134     return new wxMacPrintPreview( preview, printout, data );
 135 #elif defined(__WXPM__)
 136     return new wxOS2PrintPreview( preview, printout, data );
 137 #else
 138     return new wxPostScriptPrintPreview( preview, printout, data );
 139 #endif
 140 }
 141
 142 wxPrintDialogBase *wxNativePrintFactory::CreatePrintDialog( wxWindow *parent,
 143                                                   wxPrintDialogData *data )
 144 {
 145 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 146     return new wxWindowsPrintDialog( parent, data );
 147 #elif defined(__WXMAC__)
 148     return new wxMacPrintDialog( parent, data );
 149 #else
 150     return new wxGenericPrintDialog( parent, data );
 151 #endif
 152 }
 153
 154 wxPrintDialogBase *wxNativePrintFactory::CreatePrintDialog( wxWindow *parent,
 155                                                   wxPrintData *data )
 156 {
 157 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 158     return new wxWindowsPrintDialog( parent, data );
 159 #elif defined(__WXMAC__)
 160     return new wxMacPrintDialog( parent, data );
 161 #else
 162     return new wxGenericPrintDialog( parent, data );
 163 #endif
 164 }
 165
 166 wxPageSetupDialogBase *wxNativePrintFactory::CreatePageSetupDialog( wxWindow *parent,
 167                                                   wxPageSetupDialogData *data )
 168 {
 169 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 170     return new wxWindowsPageSetupDialog( parent, data );
 171 #elif defined(__WXMAC__)
 172     return new wxMacPageSetupDialog( parent, data );
 173 #else
 174     return new wxGenericPageSetupDialog( parent, data );
 175 #endif
 176 }
 177
 178 bool wxNativePrintFactory::HasPrintSetupDialog()
 179 {
 180 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 181     return false;
 182 #elif defined(__WXMAC__)
 183     return false;
 184 #else
 185     // Only here do we need to provide the print setup
 186     // dialog ourselves, the other platforms either have
 187     // none, don't make it accessible or let you configure
 188     // the printer from the wxPrintDialog anyway.
 189     return true;
 190 #endif
 191
 192 }
 193
 194 wxDialog *wxNativePrintFactory::CreatePrintSetupDialog( wxWindow *parent,
 195                                                         wxPrintData *data )
 196 {
 197 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 198     wxUnusedVar(parent);
 199     wxUnusedVar(data);
 200     return NULL;
 201 #elif defined(__WXMAC__)
 202     wxUnusedVar(parent);
 203     wxUnusedVar(data);
 204     return NULL;
 205 #else
 206     // Only here do we need to provide the print setup
 207     // dialog ourselves, the other platforms either have
 208     // none, don't make it accessible or let you configure
 209     // the printer from the wxPrintDialog anyway.
 210     return new wxGenericPrintSetupDialog( parent, data );
 211 #endif
 212 }
 213
 214 wxDCImpl* wxNativePrintFactory::CreatePrinterDCImpl( wxPrinterDC *owner, const wxPrintData& data )
 215 {
 216 #if defined(__WXGTK__) || defined(__WXMOTIF__) || ( defined(__WXUNIVERSAL__) && !defined(__WXMAC__) )
 217     return new wxPostScriptDCImpl( owner, data );
 218 #else
 219     return new wxPrinterDCImpl( owner, data );
 220 #endif
 221 }
 222
 223 bool wxNativePrintFactory::HasOwnPrintToFile()
 224 {
 225     // Only relevant for PostScript and here the
 226     // setup dialog provides no "print to file"
 227     // option. In the GNOME setup dialog, the
 228     // setup dialog has its own print to file.
 229     return false;
 230 }
 231
 232 bool wxNativePrintFactory::HasPrinterLine()
 233 {
 234     // Only relevant for PostScript for now
 235     return true;
 236 }
 237
 238 wxString wxNativePrintFactory::CreatePrinterLine()
 239 {
 240     // Only relevant for PostScript for now
 241
 242     // We should query "lpstat -d" here
 243     return _("Generic PostScript");
 244 }
 245
 246 bool wxNativePrintFactory::HasStatusLine()
 247 {
 248     // Only relevant for PostScript for now
 249     return true;
 250 }
 251
 252 wxString wxNativePrintFactory::CreateStatusLine()
 253 {
 254     // Only relevant for PostScript for now
 255
 256     // We should query "lpstat -r" or "lpstat -p" here
 257     return _("Ready");
 258 }
 259
 260 wxPrintNativeDataBase *wxNativePrintFactory::CreatePrintNativeData()
 261 {
 262 #if defined(__WXMSW__) && !defined(__WXUNIVERSAL__)
 263     return new wxWindowsPrintNativeData;
 264 #elif defined(__WXMAC__)
 265     return wxOSXCreatePrintData();
 266 #else
 267     return new wxPostScriptPrintNativeData;
 268 #endif
 269 }
 270
 271 //----------------------------------------------------------------------------
 272 // wxPrintNativeDataBase
 273 //----------------------------------------------------------------------------
 274
 275 IMPLEMENT_ABSTRACT_CLASS(wxPrintNativeDataBase, wxObject)
 276
 277 wxPrintNativeDataBase::wxPrintNativeDataBase()
 278 {
 279     m_ref = 1;
 280 }
 281
 282 //----------------------------------------------------------------------------
 283 // wxPrintFactoryModule
 284 //----------------------------------------------------------------------------
 285
 286 class wxPrintFactoryModule: public wxModule
 287 {
 288 public:
 289     wxPrintFactoryModule() {}
 290     bool OnInit() { return true; }
 291     void OnExit() { wxPrintFactory::SetPrintFactory( NULL ); }
 292
 293 private:
 294     DECLARE_DYNAMIC_CLASS(wxPrintFactoryModule)
 295 };
 296
 297 IMPLEMENT_DYNAMIC_CLASS(wxPrintFactoryModule, wxModule)
 298
 299 //----------------------------------------------------------------------------
 300 // wxPrinterBase
 301 //----------------------------------------------------------------------------
 302
 303 IMPLEMENT_CLASS(wxPrinterBase, wxObject)
 304
 305 wxPrinterBase::wxPrinterBase(wxPrintDialogData *data)
 306 {
 307     m_currentPrintout = NULL;
 308     sm_abortWindow = NULL;
 309     sm_abortIt = false;
 310     if (data)
 311         m_printDialogData = (*data);
 312     sm_lastError = wxPRINTER_NO_ERROR;
 313 }
 314
 315 wxWindow *wxPrinterBase::sm_abortWindow = NULL;
 316 bool wxPrinterBase::sm_abortIt = false;
 317 wxPrinterError wxPrinterBase::sm_lastError = wxPRINTER_NO_ERROR;
 318
 319 wxPrinterBase::~wxPrinterBase()
 320 {
 321 }
 322
 323 wxPrintAbortDialog *wxPrinterBase::CreateAbortWindow(wxWindow *parent, wxPrintout * printout)
 324 {
 325     return new wxPrintAbortDialog(parent, printout->GetTitle());
 326 }
 327
 328 void wxPrinterBase::ReportError(wxWindow *parent, wxPrintout *WXUNUSED(printout), const wxString& message)
 329 {
 330     wxMessageBox(message, _("Printing Error"), wxOK, parent);
 331 }
 332
 333 wxPrintDialogData& wxPrinterBase::GetPrintDialogData() const
 334 {
 335     return (wxPrintDialogData&) m_printDialogData;
 336 }
 337
 338 //----------------------------------------------------------------------------
 339 // wxPrinter
 340 //----------------------------------------------------------------------------
 341
 342 IMPLEMENT_CLASS(wxPrinter, wxPrinterBase)
 343
 344 wxPrinter::wxPrinter(wxPrintDialogData *data)
 345 {
 346     m_pimpl = wxPrintFactory::GetFactory()->CreatePrinter( data );
 347 }
 348
 349 wxPrinter::~wxPrinter()
 350 {
 351     delete m_pimpl;
 352 }
 353
 354 wxPrintAbortDialog *wxPrinter::CreateAbortWindow(wxWindow *parent, wxPrintout *printout)
 355 {
 356     return m_pimpl->CreateAbortWindow( parent, printout );
 357 }
 358
 359 void wxPrinter::ReportError(wxWindow *parent, wxPrintout *printout, const wxString& message)
 360 {
 361     m_pimpl->ReportError( parent, printout, message );
 362 }
 363
 364 bool wxPrinter::Setup(wxWindow *parent)
 365 {
 366     return m_pimpl->Setup( parent );
 367 }
 368
 369 bool wxPrinter::Print(wxWindow *parent, wxPrintout *printout, bool prompt)
 370 {
 371     if ( !prompt && m_printDialogData.GetToPage() == 0 )
 372     {
 373         // If the dialog is not shown, set the pages range to print everything
 374         // by default (as otherwise we wouldn't print anything at all which is
 375         // certainly not a reasonable default behaviour).
 376         int minPage, maxPage, selFrom, selTo;
 377         printout->GetPageInfo(&minPage, &maxPage, &selFrom, &selTo);
 378
 379         wxPrintDialogData& pdd = m_pimpl->GetPrintDialogData();
 380         pdd.SetFromPage(minPage);
 381         pdd.SetToPage(maxPage);
 382     }
 383
 384     return m_pimpl->Print( parent, printout, prompt );
 385 }
 386
 387 wxDC* wxPrinter::PrintDialog(wxWindow *parent)
 388 {
 389     return m_pimpl->PrintDialog( parent );
 390 }
 391
 392 wxPrintDialogData& wxPrinter::GetPrintDialogData() const
 393 {
 394     return m_pimpl->GetPrintDialogData();
 395 }
 396
 397 // ---------------------------------------------------------------------------
 398 // wxPrintDialogBase: the dialog for printing.
 399 // ---------------------------------------------------------------------------
 400
 401 IMPLEMENT_ABSTRACT_CLASS(wxPrintDialogBase, wxDialog)
 402
 403 wxPrintDialogBase::wxPrintDialogBase(wxWindow *parent,
 404                                      wxWindowID id,
 405                                      const wxString &title,
 406                                      const wxPoint &pos,
 407                                      const wxSize &size,
 408                                      long style)
 409     : wxDialog( parent, id, title.empty() ? wxString(_("Print")) : title,
 410                 pos, size, style )
 411 {
 412 }
 413
 414 // ---------------------------------------------------------------------------
 415 // wxPrintDialog: the dialog for printing
 416 // ---------------------------------------------------------------------------
 417
 418 IMPLEMENT_CLASS(wxPrintDialog, wxObject)
 419
 420 wxPrintDialog::wxPrintDialog(wxWindow *parent, wxPrintDialogData* data)
 421 {
 422     m_pimpl = wxPrintFactory::GetFactory()->CreatePrintDialog( parent, data );
 423 }
 424
 425 wxPrintDialog::wxPrintDialog(wxWindow *parent, wxPrintData* data)
 426 {
 427     m_pimpl = wxPrintFactory::GetFactory()->CreatePrintDialog( parent, data );
 428 }
 429
 430 wxPrintDialog::~wxPrintDialog()
 431 {
 432     delete m_pimpl;
 433 }
 434
 435 int wxPrintDialog::ShowModal()
 436 {
 437     return m_pimpl->ShowModal();
 438 }
 439
 440 wxPrintDialogData& wxPrintDialog::GetPrintDialogData()
 441 {
 442     return m_pimpl->GetPrintDialogData();
 443 }
 444
 445 wxPrintData& wxPrintDialog::GetPrintData()
 446 {
 447     return m_pimpl->GetPrintData();
 448 }
 449
 450 wxDC *wxPrintDialog::GetPrintDC()
 451 {
 452     return m_pimpl->GetPrintDC();
 453 }
 454
 455 // ---------------------------------------------------------------------------
 456 // wxPageSetupDialogBase: the page setup dialog
 457 // ---------------------------------------------------------------------------
 458
 459 IMPLEMENT_ABSTRACT_CLASS(wxPageSetupDialogBase, wxDialog)
 460
 461 wxPageSetupDialogBase::wxPageSetupDialogBase(wxWindow *parent,
 462                                      wxWindowID id,
 463                                      const wxString &title,
 464                                      const wxPoint &pos,
 465                                      const wxSize &size,
 466                                      long style)
 467     : wxDialog( parent, id, title.empty() ? wxString(_("Page setup")) : title,
 468                 pos, size, style )
 469 {
 470 }
 471
 472 // ---------------------------------------------------------------------------
 473 // wxPageSetupDialog: the page setup dialog
 474 // ---------------------------------------------------------------------------
 475
 476 IMPLEMENT_CLASS(wxPageSetupDialog, wxObject)
 477
 478 wxPageSetupDialog::wxPageSetupDialog(wxWindow *parent, wxPageSetupDialogData *data )
 479 {
 480     m_pimpl = wxPrintFactory::GetFactory()->CreatePageSetupDialog( parent, data );
 481 }
 482
 483 wxPageSetupDialog::~wxPageSetupDialog()
 484 {
 485     delete m_pimpl;
 486 }
 487
 488 int wxPageSetupDialog::ShowModal()
 489 {
 490     return m_pimpl->ShowModal();
 491 }
 492
 493 wxPageSetupDialogData& wxPageSetupDialog::GetPageSetupDialogData()
 494 {
 495     return m_pimpl->GetPageSetupDialogData();
 496 }
 497
 498 // old name
 499 wxPageSetupDialogData& wxPageSetupDialog::GetPageSetupData()
 500 {
 501     return m_pimpl->GetPageSetupDialogData();
 502 }
 503
 504 //----------------------------------------------------------------------------
 505 // wxPrintAbortDialog
 506 //----------------------------------------------------------------------------
 507
 508 BEGIN_EVENT_TABLE(wxPrintAbortDialog, wxDialog)
 509     EVT_BUTTON(wxID_CANCEL, wxPrintAbortDialog::OnCancel)
 510 END_EVENT_TABLE()
 511
 512 wxPrintAbortDialog::wxPrintAbortDialog(wxWindow *parent,
 513                                        const wxString& documentTitle,
 514                                        const wxPoint& pos,
 515                                        const wxSize& size,
 516                                        long style,
 517                                        const wxString& name)
 518     : wxDialog(parent, wxID_ANY, _("Printing"), pos, size, style, name)
 519 {
 520     wxBoxSizer *mainSizer = new wxBoxSizer(wxVERTICAL);
 521     mainSizer->Add(new wxStaticText(this, wxID_ANY, _("Please wait while printing...")),
 522                    wxSizerFlags().Expand().DoubleBorder());
 523
 524     wxFlexGridSizer *gridSizer = new wxFlexGridSizer(2, wxSize(20, 0));
 525     gridSizer->Add(new wxStaticText(this, wxID_ANY, _("Document:")));
 526     gridSizer->AddGrowableCol(1);
 527     gridSizer->Add(new wxStaticText(this, wxID_ANY, documentTitle));
 528     gridSizer->Add(new wxStaticText(this, wxID_ANY, _("Progress:")));
 529     m_progress = new wxStaticText(this, wxID_ANY, _("Preparing"));
 530     m_progress->SetMinSize(wxSize(250, -1));
 531     gridSizer->Add(m_progress);
 532     mainSizer->Add(gridSizer, wxSizerFlags().Expand().DoubleBorder(wxLEFT | wxRIGHT));
 533
 534     mainSizer->Add(CreateStdDialogButtonSizer(wxCANCEL),
 535                    wxSizerFlags().Expand().DoubleBorder());
 536
 537     SetSizerAndFit(mainSizer);
 538 }
 539
 540 void wxPrintAbortDialog::SetProgress(int currentPage, int totalPages,
 541                                      int currentCopy, int totalCopies)
 542 {
 543   wxString text;
 544   text.Printf(_("Printing page %d of %d"), currentPage, totalPages);
 545   if ( totalCopies > 1 )
 546       text += wxString::Format(_(" (copy %d of %d)"), currentCopy, totalCopies);
 547   m_progress->SetLabel(text);
 548 }
 549
 550 void wxPrintAbortDialog::OnCancel(wxCommandEvent& WXUNUSED(event))
 551 {
 552     wxCHECK_RET( wxPrinterBase::sm_abortWindow != NULL, "OnCancel called twice" );
 553
 554     wxPrinterBase::sm_abortIt = true;
 555     wxPrinterBase::sm_abortWindow->Destroy();
 556     wxPrinterBase::sm_abortWindow = NULL;
 557 }
 558
 559 //----------------------------------------------------------------------------
 560 // wxPrintout
 561 //----------------------------------------------------------------------------
 562
 563 IMPLEMENT_ABSTRACT_CLASS(wxPrintout, wxObject)
 564
 565 wxPrintout::wxPrintout(const wxString& title)
 566 {
 567     m_printoutTitle = title ;
 568     m_printoutDC = NULL;
 569     m_pageWidthMM = 0;
 570     m_pageHeightMM = 0;
 571     m_pageWidthPixels = 0;
 572     m_pageHeightPixels = 0;
 573     m_PPIScreenX = 0;
 574     m_PPIScreenY = 0;
 575     m_PPIPrinterX = 0;
 576     m_PPIPrinterY = 0;
 577     m_preview = NULL;
 578 }
 579
 580 wxPrintout::~wxPrintout()
 581 {
 582 }
 583
 584 bool wxPrintout::OnBeginDocument(int WXUNUSED(startPage), int WXUNUSED(endPage))
 585 {
 586     return GetDC()->StartDoc(_("Printing ") + m_printoutTitle);
 587 }
 588
 589 void wxPrintout::OnEndDocument()
 590 {
 591     GetDC()->EndDoc();
 592 }
 593
 594 void wxPrintout::OnBeginPrinting()
 595 {
 596 }
 597
 598 void wxPrintout::OnEndPrinting()
 599 {
 600 }
 601
 602 bool wxPrintout::HasPage(int page)
 603 {
 604     return (page == 1);
 605 }
 606
 607 void wxPrintout::GetPageInfo(int *minPage, int *maxPage, int *fromPage, int *toPage)
 608 {
 609     *minPage = 1;
 610     *maxPage = 32000;
 611     *fromPage = 1;
 612     *toPage = 1;
 613 }
 614
 615 void wxPrintout::FitThisSizeToPaper(const wxSize& imageSize)
 616 {
 617     // Set the DC scale and origin so that the given image size fits within the
 618     // entire page and the origin is at the top left corner of the page. Note
 619     // that with most printers, portions of the page will be non-printable. Use
 620     // this if you're managing your own page margins.
 621     if (!m_printoutDC) return;
 622     wxRect paperRect = GetPaperRectPixels();
 623     wxCoord pw, ph;
 624     GetPageSizePixels(&pw, &ph);
 625     wxCoord w, h;
 626     m_printoutDC->GetSize(&w, &h);
 627     float scaleX = ((float(paperRect.width) * w) / (float(pw) * imageSize.x));
 628     float scaleY = ((float(paperRect.height) * h) / (float(ph) * imageSize.y));
 629     float actualScale = wxMin(scaleX, scaleY);
 630     m_printoutDC->SetUserScale(actualScale, actualScale);
 631     m_printoutDC->SetDeviceOrigin(0, 0);
 632     wxRect logicalPaperRect = GetLogicalPaperRect();
 633     SetLogicalOrigin(logicalPaperRect.x, logicalPaperRect.y);
 634 }
 635
 636 void wxPrintout::FitThisSizeToPage(const wxSize& imageSize)
 637 {
 638     // Set the DC scale and origin so that the given image size fits within the
 639     // printable area of the page and the origin is at the top left corner of
 640     // the printable area.
 641     if (!m_printoutDC) return;
 642     int w, h;
 643     m_printoutDC->GetSize(&w, &h);
 644     float scaleX = float(w) / imageSize.x;
 645     float scaleY = float(h) / imageSize.y;
 646     float actualScale = wxMin(scaleX, scaleY);
 647     m_printoutDC->SetUserScale(actualScale, actualScale);
 648     m_printoutDC->SetDeviceOrigin(0, 0);
 649 }
 650
 651 void wxPrintout::FitThisSizeToPageMargins(const wxSize& imageSize, const wxPageSetupDialogData& pageSetupData)
 652 {
 653     // Set the DC scale and origin so that the given image size fits within the
 654     // page margins defined in the given wxPageSetupDialogData object and the
 655     // origin is at the top left corner of the page margins.
 656     if (!m_printoutDC) return;
 657     wxRect paperRect = GetPaperRectPixels();
 658     wxCoord pw, ph;
 659     GetPageSizePixels(&pw, &ph);
 660     wxPoint topLeft = pageSetupData.GetMarginTopLeft();
 661     wxPoint bottomRight = pageSetupData.GetMarginBottomRight();
 662     wxCoord mw, mh;
 663     GetPageSizeMM(&mw, &mh);
 664     float mmToDeviceX = float(pw) / mw;
 665     float mmToDeviceY = float(ph) / mh;
 666     wxRect pageMarginsRect(paperRect.x + wxRound(mmToDeviceX * topLeft.x),
 667         paperRect.y + wxRound(mmToDeviceY * topLeft.y),
 668         paperRect.width - wxRound(mmToDeviceX * (topLeft.x + bottomRight.x)),
 669         paperRect.height - wxRound(mmToDeviceY * (topLeft.y + bottomRight.y)));
 670     wxCoord w, h;
 671     m_printoutDC->GetSize(&w, &h);
 672     float scaleX = (float(pageMarginsRect.width) * w) / (float(pw) * imageSize.x);
 673     float scaleY = (float(pageMarginsRect.height) * h) / (float(ph) * imageSize.y);
 674     float actualScale = wxMin(scaleX, scaleY);
 675     m_printoutDC->SetUserScale(actualScale, actualScale);
 676     m_printoutDC->SetDeviceOrigin(0, 0);
 677     wxRect logicalPageMarginsRect = GetLogicalPageMarginsRect(pageSetupData);
 678     SetLogicalOrigin(logicalPageMarginsRect.x, logicalPageMarginsRect.y);
 679 }
 680
 681 void wxPrintout::MapScreenSizeToPaper()
 682 {
 683     // Set the DC scale so that an image on the screen is the same size on the
 684     // paper and the origin is at the top left of the paper. Note that with most
 685     // printers, portions of the page will be cut off. Use this if you're
 686     // managing your own page margins.
 687     if (!m_printoutDC) return;
 688     MapScreenSizeToPage();
 689     wxRect logicalPaperRect = GetLogicalPaperRect();
 690     SetLogicalOrigin(logicalPaperRect.x, logicalPaperRect.y);
 691 }
 692
 693 void wxPrintout::MapScreenSizeToPage()
 694 {
 695     // Set the DC scale and origin so that an image on the screen is the same
 696     // size on the paper and the origin is at the top left of the printable area.
 697     if (!m_printoutDC) return;
 698     int ppiScreenX, ppiScreenY;
 699     GetPPIScreen(&ppiScreenX, &ppiScreenY);
 700     int ppiPrinterX, ppiPrinterY;
 701     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
 702     int w, h;
 703     m_printoutDC->GetSize(&w, &h);
 704     int pageSizePixelsX, pageSizePixelsY;
 705     GetPageSizePixels(&pageSizePixelsX, &pageSizePixelsY);
 706     float userScaleX = (float(ppiPrinterX) * w) / (float(ppiScreenX) * pageSizePixelsX);
 707     float userScaleY = (float(ppiPrinterY) * h) / (float(ppiScreenY) * pageSizePixelsY);
 708     m_printoutDC->SetUserScale(userScaleX, userScaleY);
 709     m_printoutDC->SetDeviceOrigin(0, 0);
 710 }
 711
 712 void wxPrintout::MapScreenSizeToPageMargins(const wxPageSetupDialogData& pageSetupData)
 713 {
 714     // Set the DC scale so that an image on the screen is the same size on the
 715     // paper and the origin is at the top left of the page margins defined by
 716     // the given wxPageSetupDialogData object.
 717     if (!m_printoutDC) return;
 718     MapScreenSizeToPage();
 719     wxRect logicalPageMarginsRect = GetLogicalPageMarginsRect(pageSetupData);
 720     SetLogicalOrigin(logicalPageMarginsRect.x, logicalPageMarginsRect.y);
 721 }
 722
 723 void wxPrintout::MapScreenSizeToDevice()
 724 {
 725     // Set the DC scale so that a screen pixel is the same size as a device
 726     // pixel and the origin is at the top left of the printable area.
 727     if (!m_printoutDC) return;
 728     int w, h;
 729     m_printoutDC->GetSize(&w, &h);
 730     int pageSizePixelsX, pageSizePixelsY;
 731     GetPageSizePixels(&pageSizePixelsX, &pageSizePixelsY);
 732     float userScaleX = float(w) / pageSizePixelsX;
 733     float userScaleY = float(h) / pageSizePixelsY;
 734     m_printoutDC->SetUserScale(userScaleX, userScaleY);
 735     m_printoutDC->SetDeviceOrigin(0, 0);
 736 }
 737
 738 wxRect wxPrintout::GetLogicalPaperRect() const
 739 {
 740     // Return the rectangle in logical units that corresponds to the paper
 741     // rectangle.
 742     wxRect paperRect = GetPaperRectPixels();
 743     wxCoord pw, ph;
 744     GetPageSizePixels(&pw, &ph);
 745     wxCoord w, h;
 746     m_printoutDC->GetSize(&w, &h);
 747     if (w == pw && h == ph) {
 748         // this DC matches the printed page, so no scaling
 749         return wxRect(m_printoutDC->DeviceToLogicalX(paperRect.x),
 750             m_printoutDC->DeviceToLogicalY(paperRect.y),
 751             m_printoutDC->DeviceToLogicalXRel(paperRect.width),
 752             m_printoutDC->DeviceToLogicalYRel(paperRect.height));
 753     }
 754     // This DC doesn't match the printed page, so we have to scale.
 755     float scaleX = float(w) / pw;
 756     float scaleY = float(h) / ph;
 757     return wxRect(m_printoutDC->DeviceToLogicalX(wxRound(paperRect.x * scaleX)),
 758         m_printoutDC->DeviceToLogicalY(wxRound(paperRect.y * scaleY)),
 759         m_printoutDC->DeviceToLogicalXRel(wxRound(paperRect.width * scaleX)),
 760         m_printoutDC->DeviceToLogicalYRel(wxRound(paperRect.height * scaleY)));
 761 }
 762
 763 wxRect wxPrintout::GetLogicalPageRect() const
 764 {
 765     // Return the rectangle in logical units that corresponds to the printable
 766     // area.
 767     int w, h;
 768     m_printoutDC->GetSize(&w, &h);
 769     return wxRect(m_printoutDC->DeviceToLogicalX(0),
 770         m_printoutDC->DeviceToLogicalY(0),
 771         m_printoutDC->DeviceToLogicalXRel(w),
 772         m_printoutDC->DeviceToLogicalYRel(h));
 773 }
 774
 775 wxRect wxPrintout::GetLogicalPageMarginsRect(const wxPageSetupDialogData& pageSetupData) const
 776 {
 777     // Return the rectangle in logical units that corresponds to the region
 778     // within the page margins as specified by the given wxPageSetupDialogData
 779     // object.
 780
 781     // We get the paper size in device units and the margins in mm,
 782     // so we need to calculate the conversion with this trick
 783     wxCoord pw, ph;
 784     GetPageSizePixels(&pw, &ph);
 785     wxCoord mw, mh;
 786     GetPageSizeMM(&mw, &mh);
 787     float mmToDeviceX = float(pw) / mw;
 788     float mmToDeviceY = float(ph) / mh;
 789
 790     // paper size in device units
 791     wxRect paperRect = GetPaperRectPixels();
 792
 793     // margins in mm
 794     wxPoint topLeft = pageSetupData.GetMarginTopLeft();
 795     wxPoint bottomRight = pageSetupData.GetMarginBottomRight();
 796
 797     // calculate margins in device units
 798     wxRect pageMarginsRect(
 799         paperRect.x      + wxRound(mmToDeviceX * topLeft.x),
 800         paperRect.y      + wxRound(mmToDeviceY * topLeft.y),
 801         paperRect.width  - wxRound(mmToDeviceX * (topLeft.x + bottomRight.x)),
 802         paperRect.height - wxRound(mmToDeviceY * (topLeft.y + bottomRight.y)));
 803
 804     wxCoord w, h;
 805     m_printoutDC->GetSize(&w, &h);
 806     if (w == pw && h == ph)
 807     {
 808         // this DC matches the printed page, so no scaling
 809         return wxRect(
 810             m_printoutDC->DeviceToLogicalX(pageMarginsRect.x),
 811             m_printoutDC->DeviceToLogicalY(pageMarginsRect.y),
 812             m_printoutDC->DeviceToLogicalXRel(pageMarginsRect.width),
 813             m_printoutDC->DeviceToLogicalYRel(pageMarginsRect.height));
 814     }
 815
 816     // This DC doesn't match the printed page, so we have to scale.
 817     float scaleX = float(w) / pw;
 818     float scaleY = float(h) / ph;
 819     return wxRect(m_printoutDC->DeviceToLogicalX(wxRound(pageMarginsRect.x * scaleX)),
 820         m_printoutDC->DeviceToLogicalY(wxRound(pageMarginsRect.y * scaleY)),
 821         m_printoutDC->DeviceToLogicalXRel(wxRound(pageMarginsRect.width * scaleX)),
 822         m_printoutDC->DeviceToLogicalYRel(wxRound(pageMarginsRect.height * scaleY)));
 823 }
 824
 825 void wxPrintout::SetLogicalOrigin(wxCoord x, wxCoord y)
 826 {
 827     // Set the device origin by specifying a point in logical coordinates.
 828     m_printoutDC->SetDeviceOrigin(
 829         m_printoutDC->LogicalToDeviceX(x),
 830         m_printoutDC->LogicalToDeviceY(y) );
 831 }
 832
 833 void wxPrintout::OffsetLogicalOrigin(wxCoord xoff, wxCoord yoff)
 834 {
 835     // Offset the device origin by a specified distance in device coordinates.
 836     wxPoint dev_org = m_printoutDC->GetDeviceOrigin();
 837     m_printoutDC->SetDeviceOrigin(
 838         dev_org.x + m_printoutDC->LogicalToDeviceXRel(xoff),
 839         dev_org.y + m_printoutDC->LogicalToDeviceYRel(yoff) );
 840 }
 841
 842
 843 //----------------------------------------------------------------------------
 844 // wxPreviewCanvas
 845 //----------------------------------------------------------------------------
 846
 847 IMPLEMENT_CLASS(wxPreviewCanvas, wxWindow)
 848
 849 BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
 850     EVT_PAINT(wxPreviewCanvas::OnPaint)
 851     EVT_CHAR(wxPreviewCanvas::OnChar)
 852     EVT_IDLE(wxPreviewCanvas::OnIdle)
 853     EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
 854 #if wxUSE_MOUSEWHEEL
 855     EVT_MOUSEWHEEL(wxPreviewCanvas::OnMouseWheel)
 856 #endif
 857 END_EVENT_TABLE()
 858
 859 // VZ: the current code doesn't refresh properly without
 860 //     wxFULL_REPAINT_ON_RESIZE, this must be fixed as otherwise we have
 861 //     really horrible flicker when resizing the preview frame, but without
 862 //     this style it simply doesn't work correctly at all...
 863 wxPreviewCanvas::wxPreviewCanvas(wxPrintPreviewBase *preview, wxWindow *parent,
 864                                  const wxPoint& pos, const wxSize& size, long style, const wxString& name):
 865 wxScrolledWindow(parent, wxID_ANY, pos, size, style | wxFULL_REPAINT_ON_RESIZE, name)
 866 {
 867     m_printPreview = preview;
 868 #ifdef __WXMAC__
 869     // The app workspace colour is always white, but we should have
 870     // a contrast with the page.
 871     wxSystemColour colourIndex = wxSYS_COLOUR_3DDKSHADOW;
 872 #elif defined(__WXGTK__)
 873     wxSystemColour colourIndex = wxSYS_COLOUR_BTNFACE;
 874 #else
 875     wxSystemColour colourIndex = wxSYS_COLOUR_APPWORKSPACE;
 876 #endif
 877     SetBackgroundColour(wxSystemSettings::GetColour(colourIndex));
 878
 879     SetScrollbars(10, 10, 100, 100);
 880 }
 881
 882 wxPreviewCanvas::~wxPreviewCanvas()
 883 {
 884 }
 885
 886 void wxPreviewCanvas::OnPaint(wxPaintEvent& WXUNUSED(event))
 887 {
 888     wxPaintDC dc(this);
 889     PrepareDC( dc );
 890
 891 /*
 892 #ifdef __WXGTK__
 893     if (!GetUpdateRegion().IsEmpty())
 894         dc.SetClippingRegion( GetUpdateRegion() );
 895 #endif
 896 */
 897
 898     if (m_printPreview)
 899     {
 900         m_printPreview->PaintPage(this, dc);
 901     }
 902 }
 903
 904 void wxPreviewCanvas::OnIdle(wxIdleEvent& event)
 905 {
 906     event.Skip();
 907
 908     // prevent UpdatePageRendering() from being called recursively:
 909     static bool s_inIdle = false;
 910     if ( s_inIdle )
 911         return;
 912     s_inIdle = true;
 913
 914     if ( m_printPreview )
 915     {
 916         if ( m_printPreview->UpdatePageRendering() )
 917             Refresh();
 918     }
 919
 920     s_inIdle = false;
 921 }
 922
 923 // Responds to colour changes, and passes event on to children.
 924 void wxPreviewCanvas::OnSysColourChanged(wxSysColourChangedEvent& event)
 925 {
 926 #ifdef __WXMAC__
 927     // The app workspace colour is always white, but we should have
 928     // a contrast with the page.
 929     wxSystemColour colourIndex = wxSYS_COLOUR_3DDKSHADOW;
 930 #elif defined(__WXGTK__)
 931     wxSystemColour colourIndex = wxSYS_COLOUR_BTNFACE;
 932 #else
 933     wxSystemColour colourIndex = wxSYS_COLOUR_APPWORKSPACE;
 934 #endif
 935     SetBackgroundColour(wxSystemSettings::GetColour(colourIndex));
 936     Refresh();
 937
 938     // Propagate the event to the non-top-level children
 939     wxWindow::OnSysColourChanged(event);
 940 }
 941
 942 void wxPreviewCanvas::OnChar(wxKeyEvent &event)
 943 {
 944     wxPreviewControlBar* controlBar = ((wxPreviewFrame*) GetParent())->GetControlBar();
 945     switch (event.GetKeyCode())
 946     {
 947         case WXK_RETURN:
 948             controlBar->OnPrint();
 949             return;
 950         case (int)'+':
 951         case WXK_NUMPAD_ADD:
 952         case WXK_ADD:
 953             controlBar->DoZoomIn();
 954             return;
 955         case (int)'-':
 956         case WXK_NUMPAD_SUBTRACT:
 957         case WXK_SUBTRACT:
 958             controlBar->DoZoomOut();
 959             return;
 960     }
 961
 962     if (!event.ControlDown())
 963     {
 964         event.Skip();
 965         return;
 966     }
 967
 968     switch(event.GetKeyCode())
 969     {
 970         case WXK_PAGEDOWN:
 971             controlBar->OnNext(); break;
 972         case WXK_PAGEUP:
 973             controlBar->OnPrevious(); break;
 974         case WXK_HOME:
 975             controlBar->OnFirst(); break;
 976         case WXK_END:
 977             controlBar->OnLast(); break;
 978         default:
 979             event.Skip();
 980     }
 981 }
 982
 983 #if wxUSE_MOUSEWHEEL
 984
 985 void wxPreviewCanvas::OnMouseWheel(wxMouseEvent& event)
 986 {
 987     wxPreviewControlBar *
 988         controlBar = wxStaticCast(GetParent(), wxPreviewFrame)->GetControlBar();
 989
 990     if ( controlBar )
 991     {
 992         if ( event.ControlDown() && event.GetWheelRotation() != 0 )
 993         {
 994             int currentZoom = controlBar->GetZoomControl();
 995
 996             int delta;
 997             if ( currentZoom < 100 )
 998                 delta = 5;
 999             else if ( currentZoom <= 120 )
1000                 delta = 10;
1001             else
1002                 delta = 50;
1003
1004             if ( event.GetWheelRotation() > 0 )
1005                 delta = -delta;
1006
1007             int newZoom = currentZoom + delta;
1008             if ( newZoom < 10 )
1009                 newZoom = 10;
1010             if ( newZoom > 200 )
1011                 newZoom = 200;
1012             if ( newZoom != currentZoom )
1013             {
1014                 controlBar->SetZoomControl(newZoom);
1015                 m_printPreview->SetZoom(newZoom);
1016                 Refresh();
1017             }
1018             return;
1019         }
1020     }
1021
1022     event.Skip();
1023 }
1024
1025 #endif // wxUSE_MOUSEWHEEL
1026
1027 namespace
1028 {
1029
1030 // This is by the controls in the print preview as the maximal (and hence
1031 // longest) page number we may have to display.
1032 enum { MAX_PAGE_NUMBER = 99999 };
1033
1034 } // anonymous namespace
1035
1036 // ----------------------------------------------------------------------------
1037 // wxPrintPageMaxCtrl
1038 // ----------------------------------------------------------------------------
1039
1040 // A simple static control showing the maximal number of pages.
1041 class wxPrintPageMaxCtrl : public wxStaticText
1042 {
1043 public:
1044     wxPrintPageMaxCtrl(wxWindow *parent)
1045         : wxStaticText(
1046                         parent,
1047                         wxID_ANY,
1048                         wxString(),
1049                         wxDefaultPosition,
1050                         wxSize
1051                         (
1052                          parent->GetTextExtent(MaxAsString(MAX_PAGE_NUMBER)).x,
1053                          wxDefaultCoord
1054                         ),
1055                         wxST_NO_AUTORESIZE | wxALIGN_CENTRE
1056                       )
1057     {
1058     }
1059
1060     // Set the maximal page to display once we really know what it is.
1061     void SetMaxPage(int maxPage)
1062     {
1063         SetLabel(MaxAsString(maxPage));
1064     }
1065
1066 private:
1067     static wxString MaxAsString(int maxPage)
1068     {
1069         return wxString::Format("/ %d", maxPage);
1070     }
1071
1072     wxDECLARE_NO_COPY_CLASS(wxPrintPageMaxCtrl);
1073 };
1074
1075 // ----------------------------------------------------------------------------
1076 // wxPrintPageTextCtrl
1077 // ----------------------------------------------------------------------------
1078
1079 // This text control contains the page number in the specified interval.
1080 //
1081 // Invalid pages are not accepted and the control contents is validated when it
1082 // loses focus. Conversely, if the user changes the page to another valid one
1083 // or presses Enter, OnGotoPage() method of the preview object will be called.
1084 class wxPrintPageTextCtrl : public wxTextCtrl
1085 {
1086 public:
1087     wxPrintPageTextCtrl(wxPreviewControlBar *preview)
1088         : wxTextCtrl(preview,
1089                      wxID_PREVIEW_GOTO,
1090                      wxString(),
1091                      wxDefaultPosition,
1092                      // We use hardcoded maximal page number for the width
1093                      // instead of fitting it to the values we can show because
1094                      // the control looks uncomfortably narrow if the real page
1095                      // number is just one or two digits.
1096                      wxSize
1097                      (
1098                       preview->GetTextExtent(PageAsString(MAX_PAGE_NUMBER)).x,
1099                       wxDefaultCoord
1100                      ),
1101                      wxTE_PROCESS_ENTER
1102 #if wxUSE_VALIDATORS
1103                      , wxTextValidator(wxFILTER_DIGITS)
1104 #endif // wxUSE_VALIDATORS
1105                     ),
1106           m_preview(preview)
1107     {
1108         m_minPage =
1109         m_maxPage =
1110         m_page = 1;
1111
1112         Connect(wxEVT_KILL_FOCUS,
1113                 wxFocusEventHandler(wxPrintPageTextCtrl::OnKillFocus));
1114         Connect(wxEVT_TEXT_ENTER,
1115                 wxCommandEventHandler(wxPrintPageTextCtrl::OnTextEnter));
1116     }
1117
1118     // Update the pages range, must be called after OnPreparePrinting() as
1119     // these values are not known before.
1120     void SetPageInfo(int minPage, int maxPage)
1121     {
1122         m_minPage = minPage;
1123         m_maxPage = maxPage;
1124
1125         // Show the first page by default.
1126         SetPageNumber(minPage);
1127     }
1128
1129     // Helpers to conveniently set or get the current page number. Return value
1130     // is 0 if the current controls contents is invalid.
1131     void SetPageNumber(int page)
1132     {
1133         wxASSERT( IsValidPage(page) );
1134
1135         SetValue(PageAsString(page));
1136     }
1137
1138     int GetPageNumber() const
1139     {
1140         long value;
1141         if ( !GetValue().ToLong(&value) || !IsValidPage(value) )
1142             return 0;
1143
1144         // Cast is safe because the value is less than (int) m_maxPage.
1145         return static_cast<int>(value);
1146     }
1147
1148 private:
1149     static wxString PageAsString(int page)
1150     {
1151         return wxString::Format("%d", page);
1152     }
1153
1154     bool IsValidPage(int page) const
1155     {
1156         return page >= m_minPage && page <= m_maxPage;
1157     }
1158
1159     bool DoChangePage()
1160     {
1161         const int page = GetPageNumber();
1162
1163         if ( !page )
1164             return false;
1165
1166         if ( page != m_page )
1167         {
1168             // We have a valid page, remember it.
1169             m_page = page;
1170
1171             // And notify the owner about the change.
1172             m_preview->OnGotoPage();
1173         }
1174         //else: Nothing really changed.
1175
1176         return true;
1177     }
1178
1179     void OnKillFocus(wxFocusEvent& event)
1180     {
1181         if ( !DoChangePage() )
1182         {
1183             // The current contents is invalid so reset it back to the last
1184             // known good page index.
1185             SetPageNumber(m_page);
1186         }
1187
1188         event.Skip();
1189     }
1190
1191     void OnTextEnter(wxCommandEvent& WXUNUSED(event))
1192     {
1193         DoChangePage();
1194     }
1195
1196
1197     wxPreviewControlBar * const m_preview;
1198
1199     int m_minPage,
1200         m_maxPage;
1201
1202     // This is the last valid page value that we had, we revert to it if an
1203     // invalid page is entered.
1204     int m_page;
1205
1206     wxDECLARE_NO_COPY_CLASS(wxPrintPageTextCtrl);
1207 };
1208
1209 //----------------------------------------------------------------------------
1210 // wxPreviewControlBar
1211 //----------------------------------------------------------------------------
1212
1213 IMPLEMENT_CLASS(wxPreviewControlBar, wxWindow)
1214
1215 BEGIN_EVENT_TABLE(wxPreviewControlBar, wxPanel)
1216     EVT_BUTTON(wxID_PREVIEW_CLOSE,    wxPreviewControlBar::OnWindowClose)
1217     EVT_BUTTON(wxID_PREVIEW_PRINT,    wxPreviewControlBar::OnPrintButton)
1218     EVT_BUTTON(wxID_PREVIEW_PREVIOUS, wxPreviewControlBar::OnPreviousButton)
1219     EVT_BUTTON(wxID_PREVIEW_NEXT,     wxPreviewControlBar::OnNextButton)
1220     EVT_BUTTON(wxID_PREVIEW_FIRST,    wxPreviewControlBar::OnFirstButton)
1221     EVT_BUTTON(wxID_PREVIEW_LAST,     wxPreviewControlBar::OnLastButton)
1222     EVT_BUTTON(wxID_PREVIEW_ZOOM_IN,  wxPreviewControlBar::OnZoomInButton)
1223     EVT_BUTTON(wxID_PREVIEW_ZOOM_OUT, wxPreviewControlBar::OnZoomOutButton)
1224
1225     EVT_UPDATE_UI(wxID_PREVIEW_PREVIOUS, wxPreviewControlBar::OnUpdatePreviousButton)
1226     EVT_UPDATE_UI(wxID_PREVIEW_NEXT,     wxPreviewControlBar::OnUpdateNextButton)
1227     EVT_UPDATE_UI(wxID_PREVIEW_FIRST,    wxPreviewControlBar::OnUpdateFirstButton)
1228     EVT_UPDATE_UI(wxID_PREVIEW_LAST,     wxPreviewControlBar::OnUpdateLastButton)
1229     EVT_UPDATE_UI(wxID_PREVIEW_ZOOM_IN,  wxPreviewControlBar::OnUpdateZoomInButton)
1230     EVT_UPDATE_UI(wxID_PREVIEW_ZOOM_OUT, wxPreviewControlBar::OnUpdateZoomOutButton)
1231
1232     EVT_CHOICE(wxID_PREVIEW_ZOOM,     wxPreviewControlBar::OnZoomChoice)
1233     EVT_PAINT(wxPreviewControlBar::OnPaint)
1234
1235 END_EVENT_TABLE()
1236
1237 wxPreviewControlBar::wxPreviewControlBar(wxPrintPreviewBase *preview, long buttons,
1238                                          wxWindow *parent, const wxPoint& pos, const wxSize& size,
1239                                          long style, const wxString& name):
1240 wxPanel(parent, wxID_ANY, pos, size, style, name)
1241 {
1242     m_printPreview = preview;
1243     m_closeButton = NULL;
1244     m_zoomControl = NULL;
1245     m_currentPageText = NULL;
1246     m_maxPageText = NULL;
1247     m_buttonFlags = buttons;
1248 }
1249
1250 wxPreviewControlBar::~wxPreviewControlBar()
1251 {
1252 }
1253
1254 void wxPreviewControlBar::OnPaint(wxPaintEvent& WXUNUSED(event))
1255 {
1256     wxPaintDC dc(this);
1257
1258     int w, h;
1259     GetSize(&w, &h);
1260     dc.SetPen(*wxBLACK_PEN);
1261     dc.SetBrush(*wxTRANSPARENT_BRUSH);
1262     dc.DrawLine( 0, h-1, w, h-1 );
1263 }
1264
1265 void wxPreviewControlBar::OnWindowClose(wxCommandEvent& WXUNUSED(event))
1266 {
1267     wxPreviewFrame *frame = (wxPreviewFrame *)GetParent();
1268     frame->Close(true);
1269 }
1270
1271 void wxPreviewControlBar::OnPrint(void)
1272 {
1273     wxPrintPreviewBase *preview = GetPrintPreview();
1274     preview->Print(true);
1275 }
1276
1277 void wxPreviewControlBar::OnNext()
1278 {
1279     if ( IsNextEnabled() )
1280         DoGotoPage(GetPrintPreview()->GetCurrentPage() + 1);
1281 }
1282
1283 void wxPreviewControlBar::OnPrevious()
1284 {
1285     if ( IsPreviousEnabled() )
1286         DoGotoPage(GetPrintPreview()->GetCurrentPage() - 1);
1287 }
1288
1289 void wxPreviewControlBar::OnFirst()
1290 {
1291     if ( IsFirstEnabled() )
1292         DoGotoPage(GetPrintPreview()->GetMinPage());
1293 }
1294
1295 void wxPreviewControlBar::OnLast()
1296 {
1297     if ( IsLastEnabled() )
1298         DoGotoPage(GetPrintPreview()->GetMaxPage());
1299 }
1300
1301 bool wxPreviewControlBar::IsNextEnabled() const
1302 {
1303     wxPrintPreviewBase *preview = GetPrintPreview();
1304     if ( !preview )
1305         return false;
1306
1307     const int currentPage = preview->GetCurrentPage();
1308     return currentPage < preview->GetMaxPage() &&
1309                 preview->GetPrintout()->HasPage(currentPage + 1);
1310 }
1311
1312 bool wxPreviewControlBar::IsPreviousEnabled() const
1313 {
1314     wxPrintPreviewBase *preview = GetPrintPreview();
1315     if ( !preview )
1316         return false;
1317
1318     const int currentPage = preview->GetCurrentPage();
1319     return currentPage > preview->GetMinPage() &&
1320                 preview->GetPrintout()->HasPage(currentPage - 1);
1321 }
1322
1323 bool wxPreviewControlBar::IsFirstEnabled() const
1324 {
1325     wxPrintPreviewBase *preview = GetPrintPreview();
1326     if (!preview)
1327         return false;
1328
1329     return preview->GetPrintout()->HasPage(preview->GetMinPage());
1330 }
1331
1332 bool wxPreviewControlBar::IsLastEnabled() const
1333 {
1334     wxPrintPreviewBase *preview = GetPrintPreview();
1335     if (!preview)
1336         return false;
1337
1338     return preview->GetPrintout()->HasPage(preview->GetMaxPage());
1339 }
1340
1341 void wxPreviewControlBar::DoGotoPage(int page)
1342 {
1343     wxPrintPreviewBase *preview = GetPrintPreview();
1344     wxCHECK_RET( preview, "Shouldn't be called if there is no preview." );
1345
1346     preview->SetCurrentPage(page);
1347
1348     if ( m_currentPageText )
1349         m_currentPageText->SetPageNumber(page);
1350 }
1351
1352 void wxPreviewControlBar::OnGotoPage()
1353 {
1354     wxPrintPreviewBase *preview = GetPrintPreview();
1355     if (preview)
1356     {
1357         if (preview->GetMinPage() > 0)
1358         {
1359             long currentPage = m_currentPageText->GetPageNumber();
1360             if ( currentPage )
1361             {
1362                 if (preview->GetPrintout()->HasPage(currentPage))
1363                 {
1364                     preview->SetCurrentPage(currentPage);
1365                 }
1366             }
1367         }
1368     }
1369 }
1370
1371 void wxPreviewControlBar::DoZoom()
1372 {
1373     int zoom = GetZoomControl();
1374     if (GetPrintPreview())
1375         GetPrintPreview()->SetZoom(zoom);
1376 }
1377
1378 bool wxPreviewControlBar::IsZoomInEnabled() const
1379 {
1380     if ( !m_zoomControl )
1381         return false;
1382
1383     const unsigned sel = m_zoomControl->GetSelection();
1384     return sel < m_zoomControl->GetCount() - 1;
1385 }
1386
1387 bool wxPreviewControlBar::IsZoomOutEnabled() const
1388 {
1389     return m_zoomControl && m_zoomControl->GetSelection() > 0;
1390 }
1391
1392 void wxPreviewControlBar::DoZoomIn()
1393 {
1394     if (IsZoomInEnabled())
1395     {
1396         m_zoomControl->SetSelection(m_zoomControl->GetSelection() + 1);
1397         DoZoom();
1398     }
1399 }
1400
1401 void wxPreviewControlBar::DoZoomOut()
1402 {
1403     if (IsZoomOutEnabled())
1404     {
1405         m_zoomControl->SetSelection(m_zoomControl->GetSelection() - 1);
1406         DoZoom();
1407     }
1408 }
1409
1410 namespace
1411 {
1412
1413 // Helper class used by wxPreviewControlBar::CreateButtons() to add buttons
1414 // sequentially to it in the simplest way possible.
1415 class SizerWithButtons
1416 {
1417 public:
1418     // Constructor creates the sizer that will hold the buttons and stores the
1419     // parent that will be used for their creation.
1420     SizerWithButtons(wxWindow *parent)
1421         : m_sizer(new wxBoxSizer(wxHORIZONTAL)),
1422           m_parent(parent)
1423     {
1424         m_hasContents =
1425         m_needsSeparator = false;
1426     }
1427
1428     // Destructor associates the sizer with the parent window.
1429     ~SizerWithButtons()
1430     {
1431         m_parent->SetSizer(m_sizer);
1432         m_sizer->Fit(m_parent);
1433     }
1434
1435
1436     // Add an arbitrary window to the sizer.
1437     void Add(wxWindow *win)
1438     {
1439         if ( m_needsSeparator )
1440         {
1441             m_needsSeparator = false;
1442
1443             m_sizer->AddSpacer(2*wxSizerFlags::GetDefaultBorder());
1444         }
1445
1446         m_hasContents = true;
1447
1448         m_sizer->Add(win,
1449                      wxSizerFlags().Border(wxLEFT | wxTOP | wxBOTTOM).Center());
1450     }
1451
1452     // Add a button with the specified id, bitmap and tooltip.
1453     void AddButton(wxWindowID btnId,
1454                    const wxArtID& artId,
1455                    const wxString& tooltip)
1456     {
1457         // We don't use (smaller) images inside a button with a text label but
1458         // rather toolbar-like bitmap buttons hence use wxART_TOOLBAR and not
1459         // wxART_BUTTON here.
1460         wxBitmap bmp = wxArtProvider::GetBitmap(artId, wxART_TOOLBAR);
1461         wxBitmapButton * const btn = new wxBitmapButton(m_parent, btnId, bmp);
1462         btn->SetToolTip(tooltip);
1463
1464         Add(btn);
1465     }
1466
1467     // Add a control at the right end of the window. This should be called last
1468     // as everything else added after it will be added on the right side too.
1469     void AddAtEnd(wxWindow *win)
1470     {
1471         m_sizer->AddStretchSpacer();
1472         m_sizer->Add(win,
1473                      wxSizerFlags().Border(wxTOP | wxBOTTOM | wxRIGHT).Center());
1474     }
1475
1476     // Indicates the end of a group of buttons, a separator will be added after
1477     // it.
1478     void EndOfGroup()
1479     {
1480         if ( m_hasContents )
1481         {
1482             m_needsSeparator = true;
1483             m_hasContents = false;
1484         }
1485     }
1486
1487 private:
1488     wxSizer * const m_sizer;
1489     wxWindow * const m_parent;
1490
1491     // If true, we have some controls since the last group beginning. This is
1492     // used to avoid inserting two consecutive separators if EndOfGroup() is
1493     // called twice.
1494     bool m_hasContents;
1495
1496     // If true, a separator should be inserted before adding the next button.
1497     bool m_needsSeparator;
1498
1499     wxDECLARE_NO_COPY_CLASS(SizerWithButtons);
1500 };
1501
1502 } // anonymous namespace
1503
1504 void wxPreviewControlBar::CreateButtons()
1505 {
1506     SizerWithButtons sizer(this);
1507
1508     // Print button group (a single button).
1509     if (m_buttonFlags & wxPREVIEW_PRINT)
1510     {
1511         sizer.AddButton(wxID_PREVIEW_PRINT, wxART_PRINT, _("Print"));
1512         sizer.EndOfGroup();
1513     }
1514
1515     // Page selection buttons group.
1516     if (m_buttonFlags & wxPREVIEW_FIRST)
1517     {
1518         sizer.AddButton(wxID_PREVIEW_FIRST, wxART_GOTO_FIRST, _("First page"));
1519     }
1520
1521     if (m_buttonFlags & wxPREVIEW_PREVIOUS)
1522     {
1523         sizer.AddButton(wxID_PREVIEW_PREVIOUS, wxART_GO_BACK, _("Previous page"));
1524     }
1525
1526     if (m_buttonFlags & wxPREVIEW_GOTO)
1527     {
1528         m_currentPageText = new wxPrintPageTextCtrl(this);
1529         sizer.Add(m_currentPageText);
1530
1531         m_maxPageText = new wxPrintPageMaxCtrl(this);
1532         sizer.Add(m_maxPageText);
1533     }
1534
1535     if (m_buttonFlags & wxPREVIEW_NEXT)
1536     {
1537         sizer.AddButton(wxID_PREVIEW_NEXT, wxART_GO_FORWARD, _("Next page"));
1538     }
1539
1540     if (m_buttonFlags & wxPREVIEW_LAST)
1541     {
1542         sizer.AddButton(wxID_PREVIEW_LAST, wxART_GOTO_LAST, _("Last page"));
1543     }
1544
1545     sizer.EndOfGroup();
1546
1547     // Zoom controls group.
1548     if (m_buttonFlags & wxPREVIEW_ZOOM)
1549     {
1550         sizer.AddButton(wxID_PREVIEW_ZOOM_OUT, wxART_MINUS, _("Zoom Out"));
1551
1552         wxString choices[] =
1553         {
1554             wxT("10%"), wxT("15%"), wxT("20%"), wxT("25%"), wxT("30%"), wxT("35%"), wxT("40%"), wxT("45%"), wxT("50%"), wxT("55%"),
1555                 wxT("60%"), wxT("65%"), wxT("70%"), wxT("75%"), wxT("80%"), wxT("85%"), wxT("90%"), wxT("95%"), wxT("100%"), wxT("110%"),
1556                 wxT("120%"), wxT("150%"), wxT("200%")
1557         };
1558         int n = WXSIZEOF(choices);
1559
1560         m_zoomControl = new wxChoice( this, wxID_PREVIEW_ZOOM, wxDefaultPosition, wxSize(70,wxDefaultCoord), n, choices, 0 );
1561         sizer.Add(m_zoomControl);
1562         SetZoomControl(m_printPreview->GetZoom());
1563
1564         sizer.AddButton(wxID_PREVIEW_ZOOM_IN, wxART_PLUS, _("Zoom In"));
1565
1566         sizer.EndOfGroup();
1567     }
1568
1569     // Close button group (single button again).
1570     m_closeButton = new wxButton(this, wxID_PREVIEW_CLOSE, _("&Close"));
1571     sizer.AddAtEnd(m_closeButton);
1572 }
1573
1574 void wxPreviewControlBar::SetPageInfo(int minPage, int maxPage)
1575 {
1576     if ( m_currentPageText )
1577         m_currentPageText->SetPageInfo(minPage, maxPage);
1578
1579     if ( m_maxPageText )
1580         m_maxPageText->SetMaxPage(maxPage);
1581 }
1582
1583 void wxPreviewControlBar::SetZoomControl(int zoom)
1584 {
1585     if (m_zoomControl)
1586     {
1587         int n, count = m_zoomControl->GetCount();
1588         long val;
1589         for (n=0; n<count; n++)
1590         {
1591             if (m_zoomControl->GetString(n).BeforeFirst(wxT('%')).ToLong(&val) &&
1592                 (val >= long(zoom)))
1593             {
1594                 m_zoomControl->SetSelection(n);
1595                 return;
1596             }
1597         }
1598
1599         m_zoomControl->SetSelection(count-1);
1600     }
1601 }
1602
1603 int wxPreviewControlBar::GetZoomControl()
1604 {
1605     if (m_zoomControl && (m_zoomControl->GetStringSelection() != wxEmptyString))
1606     {
1607         long val;
1608         if (m_zoomControl->GetStringSelection().BeforeFirst(wxT('%')).ToLong(&val))
1609             return int(val);
1610     }
1611
1612     return 0;
1613 }
1614
1615
1616 /*
1617 * Preview frame
1618 */
1619
1620 IMPLEMENT_CLASS(wxPreviewFrame, wxFrame)
1621
1622 BEGIN_EVENT_TABLE(wxPreviewFrame, wxFrame)
1623     EVT_CHAR_HOOK(wxPreviewFrame::OnChar)
1624     EVT_CLOSE(wxPreviewFrame::OnCloseWindow)
1625 END_EVENT_TABLE()
1626
1627 void wxPreviewFrame::OnChar(wxKeyEvent &event)
1628 {
1629     if ( event.GetKeyCode() == WXK_ESCAPE )
1630     {
1631         Close(true);
1632     }
1633     else
1634     {
1635         event.Skip();
1636     }
1637 }
1638
1639 wxPreviewFrame::wxPreviewFrame(wxPrintPreviewBase *preview, wxWindow *parent, const wxString& title,
1640                                const wxPoint& pos, const wxSize& size, long style, const wxString& name):
1641 wxFrame(parent, wxID_ANY, title, pos, size, style, name)
1642 {
1643     m_printPreview = preview;
1644     m_controlBar = NULL;
1645     m_previewCanvas = NULL;
1646     m_windowDisabler = NULL;
1647     m_modalityKind = wxPreviewFrame_NonModal;
1648
1649     // Give the application icon
1650 #ifdef __WXMSW__
1651     wxFrame* topFrame = wxDynamicCast(wxTheApp->GetTopWindow(), wxFrame);
1652     if (topFrame)
1653         SetIcons(topFrame->GetIcons());
1654 #endif
1655 }
1656
1657 wxPreviewFrame::~wxPreviewFrame()
1658 {
1659     wxPrintout *printout = m_printPreview->GetPrintout();
1660     if (printout)
1661     {
1662         delete printout;
1663         m_printPreview->SetPrintout(NULL);
1664         m_printPreview->SetCanvas(NULL);
1665         m_printPreview->SetFrame(NULL);
1666     }
1667
1668     m_previewCanvas->SetPreview(NULL);
1669     delete m_printPreview;
1670 }
1671
1672 void wxPreviewFrame::OnCloseWindow(wxCloseEvent& WXUNUSED(event))
1673 {
1674     // Reenable any windows we disabled by undoing whatever we did in our
1675     // Initialize().
1676     switch ( m_modalityKind )
1677     {
1678         case wxPreviewFrame_AppModal:
1679             delete m_windowDisabler;
1680             m_windowDisabler = NULL;
1681             break;
1682
1683         case wxPreviewFrame_WindowModal:
1684             if ( GetParent() )
1685                 GetParent()->Enable();
1686             break;
1687
1688         case wxPreviewFrame_NonModal:
1689             break;
1690     }
1691
1692     Destroy();
1693 }
1694
1695 void wxPreviewFrame::InitializeWithModality(wxPreviewFrameModalityKind kind)
1696 {
1697 #if wxUSE_STATUSBAR
1698     CreateStatusBar();
1699 #endif
1700     CreateCanvas();
1701     CreateControlBar();
1702
1703     m_printPreview->SetCanvas(m_previewCanvas);
1704     m_printPreview->SetFrame(this);
1705
1706     wxBoxSizer *item0 = new wxBoxSizer( wxVERTICAL );
1707
1708     item0->Add( m_controlBar, 0, wxGROW|wxALIGN_CENTER_VERTICAL, 5 );
1709     item0->Add( m_previewCanvas, 1, wxGROW|wxALIGN_CENTER_VERTICAL, 5 );
1710
1711     SetAutoLayout( true );
1712     SetSizer( item0 );
1713
1714     m_modalityKind = kind;
1715     switch ( m_modalityKind )
1716     {
1717         case wxPreviewFrame_AppModal:
1718             // Disable everything.
1719             m_windowDisabler = new wxWindowDisabler( this );
1720             break;
1721
1722         case wxPreviewFrame_WindowModal:
1723             // Disable our parent if we have one.
1724             if ( GetParent() )
1725                 GetParent()->Disable();
1726             break;
1727
1728         case wxPreviewFrame_NonModal:
1729             // Nothing to do, we don't need to disable any windows.
1730             break;
1731     }
1732
1733     if ( m_modalityKind != wxPreviewFrame_NonModal )
1734     {
1735         // Behave like modal dialogs, don't show in taskbar. This implies
1736         // removing the minimize box, because minimizing windows without
1737         // taskbar entry is confusing.
1738         SetWindowStyle((GetWindowStyle() & ~wxMINIMIZE_BOX) | wxFRAME_NO_TASKBAR);
1739     }
1740
1741     Layout();
1742
1743     m_printPreview->AdjustScrollbars(m_previewCanvas);
1744     m_previewCanvas->SetFocus();
1745     m_controlBar->SetFocus();
1746 }
1747
1748 void wxPreviewFrame::CreateCanvas()
1749 {
1750     m_previewCanvas = new wxPreviewCanvas(m_printPreview, this);
1751 }
1752
1753 void wxPreviewFrame::CreateControlBar()
1754 {
1755     long buttons = wxPREVIEW_DEFAULT;
1756     if (m_printPreview->GetPrintoutForPrinting())
1757         buttons |= wxPREVIEW_PRINT;
1758
1759     m_controlBar = new wxPreviewControlBar(m_printPreview, buttons, this);
1760     m_controlBar->CreateButtons();
1761 }
1762
1763 /*
1764 * Print preview
1765 */
1766
1767 IMPLEMENT_CLASS(wxPrintPreviewBase, wxObject)
1768
1769 wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
1770                                        wxPrintout *printoutForPrinting,
1771                                        wxPrintData *data)
1772 {
1773     if (data)
1774         m_printDialogData = (*data);
1775
1776     Init(printout, printoutForPrinting);
1777 }
1778
1779 wxPrintPreviewBase::wxPrintPreviewBase(wxPrintout *printout,
1780                                        wxPrintout *printoutForPrinting,
1781                                        wxPrintDialogData *data)
1782 {
1783     if (data)
1784         m_printDialogData = (*data);
1785
1786     Init(printout, printoutForPrinting);
1787 }
1788
1789 void wxPrintPreviewBase::Init(wxPrintout *printout,
1790                               wxPrintout *printoutForPrinting)
1791 {
1792     m_isOk = true;
1793     m_previewPrintout = printout;
1794     if (m_previewPrintout)
1795         m_previewPrintout->SetPreview(static_cast<wxPrintPreview *>(this));
1796
1797     m_printPrintout = printoutForPrinting;
1798
1799     m_previewCanvas = NULL;
1800     m_previewFrame = NULL;
1801     m_previewBitmap = NULL;
1802     m_previewFailed = false;
1803     m_currentPage = 1;
1804     m_currentZoom = 70;
1805     m_topMargin =
1806     m_leftMargin = 2*wxSizerFlags::GetDefaultBorder();
1807     m_pageWidth = 0;
1808     m_pageHeight = 0;
1809     m_printingPrepared = false;
1810     m_minPage = 1;
1811     m_maxPage = 1;
1812 }
1813
1814 wxPrintPreviewBase::~wxPrintPreviewBase()
1815 {
1816     if (m_previewPrintout)
1817         delete m_previewPrintout;
1818     if (m_previewBitmap)
1819         delete m_previewBitmap;
1820     if (m_printPrintout)
1821         delete m_printPrintout;
1822 }
1823
1824 bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
1825 {
1826     if (m_currentPage == pageNum)
1827         return true;
1828
1829     m_currentPage = pageNum;
1830
1831     InvalidatePreviewBitmap();
1832
1833     if (m_previewCanvas)
1834     {
1835         AdjustScrollbars(m_previewCanvas);
1836
1837         m_previewCanvas->Refresh();
1838         m_previewCanvas->SetFocus();
1839     }
1840     return true;
1841 }
1842
1843 int wxPrintPreviewBase::GetCurrentPage() const
1844     { return m_currentPage; }
1845 void wxPrintPreviewBase::SetPrintout(wxPrintout *printout)
1846     { m_previewPrintout = printout; }
1847 wxPrintout *wxPrintPreviewBase::GetPrintout() const
1848     { return m_previewPrintout; }
1849 wxPrintout *wxPrintPreviewBase::GetPrintoutForPrinting() const
1850     { return m_printPrintout; }
1851 void wxPrintPreviewBase::SetFrame(wxFrame *frame)
1852     { m_previewFrame = frame; }
1853 void wxPrintPreviewBase::SetCanvas(wxPreviewCanvas *canvas)
1854     { m_previewCanvas = canvas; }
1855 wxFrame *wxPrintPreviewBase::GetFrame() const
1856     { return m_previewFrame; }
1857 wxPreviewCanvas *wxPrintPreviewBase::GetCanvas() const
1858     { return m_previewCanvas; }
1859
1860 void wxPrintPreviewBase::CalcRects(wxPreviewCanvas *canvas, wxRect& pageRect, wxRect& paperRect)
1861 {
1862     // Calculate the rectangles for the printable area of the page and the
1863     // entire paper as they appear on the canvas on-screen.
1864     int canvasWidth, canvasHeight;
1865     canvas->GetSize(&canvasWidth, &canvasHeight);
1866
1867     float zoomScale = float(m_currentZoom) / 100;
1868     float screenPrintableWidth = zoomScale * m_pageWidth * m_previewScaleX;
1869     float screenPrintableHeight = zoomScale * m_pageHeight * m_previewScaleY;
1870
1871     wxRect devicePaperRect = m_previewPrintout->GetPaperRectPixels();
1872     wxCoord devicePrintableWidth, devicePrintableHeight;
1873     m_previewPrintout->GetPageSizePixels(&devicePrintableWidth, &devicePrintableHeight);
1874     float scaleX = screenPrintableWidth / devicePrintableWidth;
1875     float scaleY = screenPrintableHeight / devicePrintableHeight;
1876     paperRect.width = wxCoord(scaleX * devicePaperRect.width);
1877     paperRect.height = wxCoord(scaleY * devicePaperRect.height);
1878
1879     paperRect.x = wxCoord((canvasWidth - paperRect.width)/ 2.0);
1880     if (paperRect.x < m_leftMargin)
1881         paperRect.x = m_leftMargin;
1882     paperRect.y = wxCoord((canvasHeight - paperRect.height)/ 2.0);
1883     if (paperRect.y < m_topMargin)
1884         paperRect.y = m_topMargin;
1885
1886     pageRect.x = paperRect.x - wxCoord(scaleX * devicePaperRect.x);
1887     pageRect.y = paperRect.y - wxCoord(scaleY * devicePaperRect.y);
1888     pageRect.width = wxCoord(screenPrintableWidth);
1889     pageRect.height = wxCoord(screenPrintableHeight);
1890 }
1891
1892
1893 void wxPrintPreviewBase::InvalidatePreviewBitmap()
1894 {
1895     wxDELETE(m_previewBitmap);
1896     // if there was a problem with rendering the preview, try again now
1897     // that it changed in some way (less memory may be needed, for example):
1898     m_previewFailed = false;
1899 }
1900
1901 bool wxPrintPreviewBase::UpdatePageRendering()
1902 {
1903     if ( m_previewBitmap )
1904         return false;
1905
1906     if ( m_previewFailed )
1907         return false;
1908
1909     if ( !RenderPage(m_currentPage) )
1910     {
1911         m_previewFailed = true; // don't waste time failing again
1912         return false;
1913     }
1914
1915     return true;
1916 }
1917
1918 bool wxPrintPreviewBase::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
1919 {
1920     DrawBlankPage(canvas, dc);
1921
1922     if (!m_previewBitmap)
1923         return false;
1924     if (!canvas)
1925         return false;
1926
1927     wxRect pageRect, paperRect;
1928     CalcRects(canvas, pageRect, paperRect);
1929     wxMemoryDC temp_dc;
1930     temp_dc.SelectObject(*m_previewBitmap);
1931
1932     dc.Blit(pageRect.x, pageRect.y,
1933         m_previewBitmap->GetWidth(), m_previewBitmap->GetHeight(), &temp_dc, 0, 0);
1934
1935     temp_dc.SelectObject(wxNullBitmap);
1936     return true;
1937 }
1938
1939 // Adjusts the scrollbars for the current scale
1940 void wxPrintPreviewBase::AdjustScrollbars(wxPreviewCanvas *canvas)
1941 {
1942     if (!canvas)
1943         return ;
1944
1945     wxRect pageRect, paperRect;
1946     CalcRects(canvas, pageRect, paperRect);
1947      int totalWidth = paperRect.width + 2 * m_leftMargin;
1948     int totalHeight = paperRect.height + 2 * m_topMargin;
1949     int scrollUnitsX = totalWidth / 10;
1950     int scrollUnitsY = totalHeight / 10;
1951     wxSize virtualSize = canvas->GetVirtualSize();
1952     if (virtualSize.GetWidth() != totalWidth || virtualSize.GetHeight() != totalHeight)
1953         canvas->SetScrollbars(10, 10, scrollUnitsX, scrollUnitsY, 0, 0, true);
1954 }
1955
1956 bool wxPrintPreviewBase::RenderPageIntoDC(wxDC& dc, int pageNum)
1957 {
1958     m_previewPrintout->SetDC(&dc);
1959     m_previewPrintout->SetPageSizePixels(m_pageWidth, m_pageHeight);
1960
1961     // Need to delay OnPreparePrinting() until here, so we have enough
1962     // information and a wxDC.
1963     if (!m_printingPrepared)
1964     {
1965         m_printingPrepared = true;
1966
1967         m_previewPrintout->OnPreparePrinting();
1968         int selFrom, selTo;
1969         m_previewPrintout->GetPageInfo(&m_minPage, &m_maxPage, &selFrom, &selTo);
1970
1971         // Update the wxPreviewControlBar page range display.
1972         if ( m_previewFrame )
1973         {
1974             wxPreviewControlBar * const
1975                 controlBar = ((wxPreviewFrame*)m_previewFrame)->GetControlBar();
1976             if ( controlBar )
1977                 controlBar->SetPageInfo(m_minPage, m_maxPage);
1978         }
1979     }
1980
1981     m_previewPrintout->OnBeginPrinting();
1982
1983     if (!m_previewPrintout->OnBeginDocument(m_printDialogData.GetFromPage(), m_printDialogData.GetToPage()))
1984     {
1985         wxMessageBox(_("Could not start document preview."), _("Print Preview Failure"), wxOK);
1986         return false;
1987     }
1988
1989     m_previewPrintout->OnPrintPage(pageNum);
1990     m_previewPrintout->OnEndDocument();
1991     m_previewPrintout->OnEndPrinting();
1992
1993     m_previewPrintout->SetDC(NULL);
1994
1995     return true;
1996 }
1997
1998 bool wxPrintPreviewBase::RenderPageIntoBitmap(wxBitmap& bmp, int pageNum)
1999 {
2000     wxMemoryDC memoryDC;
2001     memoryDC.SelectObject(bmp);
2002     memoryDC.Clear();
2003
2004     return RenderPageIntoDC(memoryDC, pageNum);
2005 }
2006
2007 bool wxPrintPreviewBase::RenderPage(int pageNum)
2008 {
2009     wxBusyCursor busy;
2010
2011     if (!m_previewCanvas)
2012     {
2013         wxFAIL_MSG(wxT("wxPrintPreviewBase::RenderPage: must use wxPrintPreviewBase::SetCanvas to let me know about the canvas!"));
2014         return false;
2015     }
2016
2017     wxRect pageRect, paperRect;
2018     CalcRects(m_previewCanvas, pageRect, paperRect);
2019
2020     if (!m_previewBitmap)
2021     {
2022         m_previewBitmap = new wxBitmap(pageRect.width, pageRect.height);
2023
2024         if (!m_previewBitmap || !m_previewBitmap->IsOk())
2025         {
2026             InvalidatePreviewBitmap();
2027             wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
2028             return false;
2029         }
2030     }
2031
2032     if ( !RenderPageIntoBitmap(*m_previewBitmap, pageNum) )
2033     {
2034         InvalidatePreviewBitmap();
2035         wxMessageBox(_("Sorry, not enough memory to create a preview."), _("Print Preview Failure"), wxOK);
2036         return false;
2037     }
2038
2039 #if wxUSE_STATUSBAR
2040     wxString status;
2041     if (m_maxPage != 0)
2042         status = wxString::Format(_("Page %d of %d"), pageNum, m_maxPage);
2043     else
2044         status = wxString::Format(_("Page %d"), pageNum);
2045
2046     if (m_previewFrame)
2047         m_previewFrame->SetStatusText(status);
2048 #endif
2049
2050     return true;
2051 }
2052
2053 bool wxPrintPreviewBase::DrawBlankPage(wxPreviewCanvas *canvas, wxDC& dc)
2054 {
2055     wxRect pageRect, paperRect;
2056
2057     CalcRects(canvas, pageRect, paperRect);
2058
2059     // Draw shadow, allowing for 1-pixel border AROUND the actual paper
2060     wxCoord shadowOffset = 4;
2061
2062     dc.SetPen(*wxBLACK_PEN);
2063     dc.SetBrush(*wxBLACK_BRUSH);
2064     dc.DrawRectangle(paperRect.x + shadowOffset, paperRect.y + paperRect.height + 1,
2065         paperRect.width, shadowOffset);
2066
2067     dc.DrawRectangle(paperRect.x + paperRect.width, paperRect.y + shadowOffset,
2068         shadowOffset, paperRect.height);
2069
2070     // Draw blank page allowing for 1-pixel border AROUND the actual paper
2071     dc.SetPen(*wxBLACK_PEN);
2072     dc.SetBrush(*wxWHITE_BRUSH);
2073     dc.DrawRectangle(paperRect.x - 2, paperRect.y - 1,
2074         paperRect.width + 3, paperRect.height + 2);
2075
2076     return true;
2077 }
2078
2079 void wxPrintPreviewBase::SetZoom(int percent)
2080 {
2081     if (m_currentZoom == percent)
2082         return;
2083
2084     m_currentZoom = percent;
2085
2086     InvalidatePreviewBitmap();
2087
2088     if (m_previewCanvas)
2089     {
2090         AdjustScrollbars(m_previewCanvas);
2091         ((wxScrolledWindow *) m_previewCanvas)->Scroll(0, 0);
2092         m_previewCanvas->ClearBackground();
2093         m_previewCanvas->Refresh();
2094         m_previewCanvas->SetFocus();
2095     }
2096 }
2097
2098 wxPrintDialogData& wxPrintPreviewBase::GetPrintDialogData()
2099 {
2100     return m_printDialogData;
2101 }
2102
2103 int wxPrintPreviewBase::GetZoom() const
2104 { return m_currentZoom; }
2105 int wxPrintPreviewBase::GetMaxPage() const
2106 { return m_maxPage; }
2107 int wxPrintPreviewBase::GetMinPage() const
2108 { return m_minPage; }
2109 bool wxPrintPreviewBase::IsOk() const
2110 { return m_isOk; }
2111 void wxPrintPreviewBase::SetOk(bool ok)
2112 { m_isOk = ok; }
2113
2114 //----------------------------------------------------------------------------
2115 // wxPrintPreview
2116 //----------------------------------------------------------------------------
2117
2118 IMPLEMENT_CLASS(wxPrintPreview, wxPrintPreviewBase)
2119
2120 wxPrintPreview::wxPrintPreview(wxPrintout *printout,
2121                    wxPrintout *printoutForPrinting,
2122                    wxPrintDialogData *data) :
2123     wxPrintPreviewBase( printout, printoutForPrinting, data )
2124 {
2125     m_pimpl = wxPrintFactory::GetFactory()->
2126         CreatePrintPreview( printout, printoutForPrinting, data );
2127 }
2128
2129 wxPrintPreview::wxPrintPreview(wxPrintout *printout,
2130                    wxPrintout *printoutForPrinting,
2131                    wxPrintData *data ) :
2132     wxPrintPreviewBase( printout, printoutForPrinting, data )
2133 {
2134     m_pimpl = wxPrintFactory::GetFactory()->
2135         CreatePrintPreview( printout, printoutForPrinting, data );
2136 }
2137
2138 wxPrintPreview::~wxPrintPreview()
2139 {
2140     delete m_pimpl;
2141
2142     // don't delete twice
2143     m_printPrintout = NULL;
2144     m_previewPrintout = NULL;
2145     m_previewBitmap = NULL;
2146 }
2147
2148 bool wxPrintPreview::SetCurrentPage(int pageNum)
2149 {
2150     return m_pimpl->SetCurrentPage( pageNum );
2151 }
2152
2153 int wxPrintPreview::GetCurrentPage() const
2154 {
2155     return m_pimpl->GetCurrentPage();
2156 }
2157
2158 void wxPrintPreview::SetPrintout(wxPrintout *printout)
2159 {
2160     m_pimpl->SetPrintout( printout );
2161 }
2162
2163 wxPrintout *wxPrintPreview::GetPrintout() const
2164 {
2165     return m_pimpl->GetPrintout();
2166 }
2167
2168 wxPrintout *wxPrintPreview::GetPrintoutForPrinting() const
2169 {
2170     return m_pimpl->GetPrintoutForPrinting();
2171 }
2172
2173 void wxPrintPreview::SetFrame(wxFrame *frame)
2174 {
2175     m_pimpl->SetFrame( frame );
2176 }
2177
2178 void wxPrintPreview::SetCanvas(wxPreviewCanvas *canvas)
2179 {
2180     m_pimpl->SetCanvas( canvas );
2181 }
2182
2183 wxFrame *wxPrintPreview::GetFrame() const
2184 {
2185     return m_pimpl->GetFrame();
2186 }
2187
2188 wxPreviewCanvas *wxPrintPreview::GetCanvas() const
2189 {
2190     return m_pimpl->GetCanvas();
2191 }
2192
2193 bool wxPrintPreview::PaintPage(wxPreviewCanvas *canvas, wxDC& dc)
2194 {
2195     return m_pimpl->PaintPage( canvas, dc );
2196 }
2197
2198 bool wxPrintPreview::UpdatePageRendering()
2199 {
2200     return m_pimpl->UpdatePageRendering();
2201 }
2202
2203 bool wxPrintPreview::DrawBlankPage(wxPreviewCanvas *canvas, wxDC& dc)
2204 {
2205     return m_pimpl->DrawBlankPage( canvas, dc );
2206 }
2207
2208 void wxPrintPreview::AdjustScrollbars(wxPreviewCanvas *canvas)
2209 {
2210     m_pimpl->AdjustScrollbars( canvas );
2211 }
2212
2213 bool wxPrintPreview::RenderPage(int pageNum)
2214 {
2215     return m_pimpl->RenderPage( pageNum );
2216 }
2217
2218 void wxPrintPreview::SetZoom(int percent)
2219 {
2220     m_pimpl->SetZoom( percent );
2221 }
2222
2223 int wxPrintPreview::GetZoom() const
2224 {
2225     return m_pimpl->GetZoom();
2226 }
2227
2228 wxPrintDialogData& wxPrintPreview::GetPrintDialogData()
2229 {
2230     return m_pimpl->GetPrintDialogData();
2231 }
2232
2233 int wxPrintPreview::GetMaxPage() const
2234 {
2235     return m_pimpl->GetMaxPage();
2236 }
2237
2238 int wxPrintPreview::GetMinPage() const
2239 {
2240     return m_pimpl->GetMinPage();
2241 }
2242
2243 bool wxPrintPreview::IsOk() const
2244 {
2245     return m_pimpl->IsOk();
2246 }
2247
2248 void wxPrintPreview::SetOk(bool ok)
2249 {
2250     m_pimpl->SetOk( ok );
2251 }
2252
2253 bool wxPrintPreview::Print(bool interactive)
2254 {
2255     return m_pimpl->Print( interactive );
2256 }
2257
2258 void wxPrintPreview::DetermineScaling()
2259 {
2260     m_pimpl->DetermineScaling();
2261 }
2262
2263 #endif // wxUSE_PRINTING_ARCHITECTURE