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