src/common/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/docview.cpp
   3 // Purpose:     Document/view classes
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_DOC_VIEW_ARCHITECTURE
  28
  29 #include "wx/docview.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/list.h"
  33     #include "wx/string.h"
  34     #include "wx/utils.h"
  35     #include "wx/app.h"
  36     #include "wx/dc.h"
  37     #include "wx/dialog.h"
  38     #include "wx/menu.h"
  39     #include "wx/filedlg.h"
  40     #include "wx/intl.h"
  41     #include "wx/log.h"
  42     #include "wx/msgdlg.h"
  43     #include "wx/mdi.h"
  44     #include "wx/choicdlg.h"
  45 #endif
  46
  47 #if wxUSE_PRINTING_ARCHITECTURE
  48     #include "wx/prntbase.h"
  49     #include "wx/printdlg.h"
  50 #endif
  51
  52 #include "wx/confbase.h"
  53 #include "wx/filename.h"
  54 #include "wx/file.h"
  55 #include "wx/ffile.h"
  56 #include "wx/cmdproc.h"
  57 #include "wx/tokenzr.h"
  58 #include "wx/filename.h"
  59 #include "wx/stdpaths.h"
  60 #include "wx/vector.h"
  61 #include "wx/scopedarray.h"
  62 #include "wx/scopedptr.h"
  63
  64 #if wxUSE_STD_IOSTREAM
  65     #include "wx/ioswrap.h"
  66     #include "wx/beforestd.h"
  67     #if wxUSE_IOSTREAMH
  68         #include <fstream.h>
  69     #else
  70         #include <fstream>
  71     #endif
  72     #include "wx/afterstd.h"
  73 #else
  74     #include "wx/wfstream.h"
  75 #endif
  76
  77 typedef wxVector<wxDocTemplate *> wxDocTemplates;
  78
  79 // ----------------------------------------------------------------------------
  80 // wxWidgets macros
  81 // ----------------------------------------------------------------------------
  82
  83 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  84 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  85 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  86 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  87 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  88 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  89
  90 #if wxUSE_PRINTING_ARCHITECTURE
  91     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  92 #endif
  93
  94 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  95
  96 // ============================================================================
  97 // implementation
  98 // ============================================================================
  99
 100 // ----------------------------------------------------------------------------
 101 // private helpers
 102 // ----------------------------------------------------------------------------
 103
 104 namespace
 105 {
 106
 107 wxWindow *wxFindSuitableParent()
 108 {
 109     wxWindow * const win = wxGetTopLevelParent(wxWindow::FindFocus());
 110
 111     return win ? win : wxTheApp->GetTopWindow();
 112 }
 113
 114 wxString FindExtension(const wxString& path)
 115 {
 116     wxString ext;
 117     wxFileName::SplitPath(path, NULL, NULL, &ext);
 118
 119     // VZ: extensions are considered not case sensitive - is this really a good
 120     //     idea?
 121     return ext.MakeLower();
 122 }
 123
 124 // return the string used for the MRU list items in the menu
 125 //
 126 // NB: the index n is 0-based, as usual, but the strings start from 1
 127 wxString GetMRUEntryLabel(int n, const wxString& path)
 128 {
 129     // we need to quote '&' characters which are used for mnemonics
 130     wxString pathInMenu(path);
 131     pathInMenu.Replace("&", "&&");
 132
 133     return wxString::Format("&%d %s", n + 1, pathInMenu);
 134 }
 135
 136 } // anonymous namespace
 137
 138 // ----------------------------------------------------------------------------
 139 // Definition of wxDocument
 140 // ----------------------------------------------------------------------------
 141
 142 wxDocument::wxDocument(wxDocument *parent)
 143 {
 144     m_documentModified = false;
 145     m_documentParent = parent;
 146     m_documentTemplate = NULL;
 147     m_commandProcessor = NULL;
 148     m_savedYet = false;
 149 }
 150
 151 bool wxDocument::DeleteContents()
 152 {
 153     return true;
 154 }
 155
 156 wxDocument::~wxDocument()
 157 {
 158     DeleteContents();
 159
 160     delete m_commandProcessor;
 161
 162     if (GetDocumentManager())
 163         GetDocumentManager()->RemoveDocument(this);
 164
 165     // Not safe to do here, since it'll invoke virtual view functions
 166     // expecting to see valid derived objects: and by the time we get here,
 167     // we've called destructors higher up.
 168     //DeleteAllViews();
 169 }
 170
 171 bool wxDocument::Close()
 172 {
 173     if ( !OnSaveModified() )
 174         return false;
 175
 176     return OnCloseDocument();
 177 }
 178
 179 bool wxDocument::OnCloseDocument()
 180 {
 181     // Tell all views that we're about to close
 182     NotifyClosing();
 183     DeleteContents();
 184     Modify(false);
 185     return true;
 186 }
 187
 188 // Note that this implicitly deletes the document when the last view is
 189 // deleted.
 190 bool wxDocument::DeleteAllViews()
 191 {
 192     wxDocManager* manager = GetDocumentManager();
 193
 194     // first check if all views agree to be closed
 195     const wxList::iterator end = m_documentViews.end();
 196     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 197     {
 198         wxView *view = (wxView *)*i;
 199         if ( !view->Close() )
 200             return false;
 201     }
 202
 203     // all views agreed to close, now do close them
 204     if ( m_documentViews.empty() )
 205     {
 206         // normally the document would be implicitly deleted when the last view
 207         // is, but if don't have any views, do it here instead
 208         if ( manager && manager->GetDocuments().Member(this) )
 209             delete this;
 210     }
 211     else // have views
 212     {
 213         // as we delete elements we iterate over, don't use the usual "from
 214         // begin to end" loop
 215         for ( ;; )
 216         {
 217             wxView *view = (wxView *)*m_documentViews.begin();
 218
 219             bool isLastOne = m_documentViews.size() == 1;
 220
 221             // this always deletes the node implicitly and if this is the last
 222             // view also deletes this object itself (also implicitly, great),
 223             // so we can't test for m_documentViews.empty() after calling this!
 224             delete view;
 225
 226             if ( isLastOne )
 227                 break;
 228         }
 229     }
 230
 231     return true;
 232 }
 233
 234 wxView *wxDocument::GetFirstView() const
 235 {
 236     if ( m_documentViews.empty() )
 237         return NULL;
 238
 239     return static_cast<wxView *>(m_documentViews.GetFirst()->GetData());
 240 }
 241
 242 wxDocManager *wxDocument::GetDocumentManager() const
 243 {
 244     return m_documentTemplate ? m_documentTemplate->GetDocumentManager() : NULL;
 245 }
 246
 247 bool wxDocument::OnNewDocument()
 248 {
 249     if ( !OnSaveModified() )
 250         return false;
 251
 252     DeleteContents();
 253     Modify(false);
 254     SetDocumentSaved(false);
 255
 256     const wxString name = GetDocumentManager()->MakeNewDocumentName();
 257     SetTitle(name);
 258     SetFilename(name, true);
 259
 260     return true;
 261 }
 262
 263 bool wxDocument::Save()
 264 {
 265     if ( AlreadySaved() )
 266         return true;
 267
 268     if ( m_documentFile.empty() || !m_savedYet )
 269         return SaveAs();
 270
 271     return OnSaveDocument(m_documentFile);
 272 }
 273
 274 bool wxDocument::SaveAs()
 275 {
 276     wxDocTemplate *docTemplate = GetDocumentTemplate();
 277     if (!docTemplate)
 278         return false;
 279
 280 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
 281     wxString filter = docTemplate->GetDescription() + wxT(" (") +
 282         docTemplate->GetFileFilter() + wxT(")|") +
 283         docTemplate->GetFileFilter();
 284
 285     // Now see if there are some other template with identical view and document
 286     // classes, whose filters may also be used.
 287     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 288     {
 289         wxList::compatibility_iterator
 290             node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
 291         while (node)
 292         {
 293             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 294
 295             if (t->IsVisible() && t != docTemplate &&
 296                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 297                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 298             {
 299                 // add a '|' to separate this filter from the previous one
 300                 if ( !filter.empty() )
 301                     filter << wxT('|');
 302
 303                 filter << t->GetDescription()
 304                        << wxT(" (") << t->GetFileFilter() << wxT(") |")
 305                        << t->GetFileFilter();
 306             }
 307
 308             node = node->GetNext();
 309         }
 310     }
 311 #else
 312     wxString filter = docTemplate->GetFileFilter() ;
 313 #endif
 314
 315     wxString defaultDir = docTemplate->GetDirectory();
 316     if ( defaultDir.empty() )
 317     {
 318         defaultDir = wxPathOnly(GetFilename());
 319         if ( defaultDir.empty() )
 320             defaultDir = GetDocumentManager()->GetLastDirectory();
 321     }
 322
 323     wxString fileName = wxFileSelector(_("Save As"),
 324             defaultDir,
 325             wxFileNameFromPath(GetFilename()),
 326             docTemplate->GetDefaultExtension(),
 327             filter,
 328             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 329             GetDocumentWindow());
 330
 331     if (fileName.empty())
 332         return false; // cancelled by user
 333
 334     wxString ext;
 335     wxFileName::SplitPath(fileName, NULL, NULL, &ext);
 336
 337     if (ext.empty())
 338     {
 339         fileName += wxT(".");
 340         fileName += docTemplate->GetDefaultExtension();
 341     }
 342
 343     // Files that were not saved correctly are not added to the FileHistory.
 344     if (!OnSaveDocument(fileName))
 345         return false;
 346
 347     SetTitle(wxFileNameFromPath(fileName));
 348     SetFilename(fileName, true);    // will call OnChangeFileName automatically
 349
 350    // A file that doesn't use the default extension of its document template
 351    // cannot be opened via the FileHistory, so we do not add it.
 352    if (docTemplate->FileMatchesTemplate(fileName))
 353    {
 354        GetDocumentManager()->AddFileToHistory(fileName);
 355    }
 356    //else: the user will probably not be able to open the file again, so we
 357    //      could warn about the wrong file-extension here
 358
 359    return true;
 360 }
 361
 362 bool wxDocument::OnSaveDocument(const wxString& file)
 363 {
 364     if ( !file )
 365         return false;
 366
 367     if ( !DoSaveDocument(file) )
 368         return false;
 369
 370     Modify(false);
 371     SetFilename(file);
 372     SetDocumentSaved(true);
 373 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
 374     wxFileName fn(file) ;
 375     fn.MacSetDefaultTypeAndCreator() ;
 376 #endif
 377     return true;
 378 }
 379
 380 bool wxDocument::OnOpenDocument(const wxString& file)
 381 {
 382     if ( !OnSaveModified() )
 383         return false;
 384
 385     if ( !DoOpenDocument(file) )
 386         return false;
 387
 388     SetFilename(file, true);
 389     Modify(false);
 390     m_savedYet = true;
 391
 392     UpdateAllViews();
 393
 394     return true;
 395 }
 396
 397 #if wxUSE_STD_IOSTREAM
 398 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 399 #else
 400 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 401 #endif
 402 {
 403     return stream;
 404 }
 405
 406 #if wxUSE_STD_IOSTREAM
 407 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 408 #else
 409 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 410 #endif
 411 {
 412     return stream;
 413 }
 414
 415 bool wxDocument::Revert()
 416 {
 417     return false;
 418 }
 419
 420
 421 // Get title, or filename if no title, else unnamed
 422 #if WXWIN_COMPATIBILITY_2_8
 423 bool wxDocument::GetPrintableName(wxString& buf) const
 424 {
 425     // this function can not only be overridden by the user code but also
 426     // called by it so we need to ensure that we return the same thing as
 427     // GetUserReadableName() but we can't call it because this would result in
 428     // an infinite recursion, hence we use the helper DoGetUserReadableName()
 429     buf = DoGetUserReadableName();
 430
 431     return true;
 432 }
 433 #endif // WXWIN_COMPATIBILITY_2_8
 434
 435 wxString wxDocument::GetUserReadableName() const
 436 {
 437 #if WXWIN_COMPATIBILITY_2_8
 438     // we need to call the old virtual function to ensure that the overridden
 439     // version of it is still called
 440     wxString name;
 441     if ( GetPrintableName(name) )
 442         return name;
 443 #endif // WXWIN_COMPATIBILITY_2_8
 444
 445     return DoGetUserReadableName();
 446 }
 447
 448 wxString wxDocument::DoGetUserReadableName() const
 449 {
 450     if ( !m_documentTitle.empty() )
 451         return m_documentTitle;
 452
 453     if ( !m_documentFile.empty() )
 454         return wxFileNameFromPath(m_documentFile);
 455
 456     return _("unnamed");
 457 }
 458
 459 wxWindow *wxDocument::GetDocumentWindow() const
 460 {
 461     wxView * const view = GetFirstView();
 462
 463     return view ? view->GetFrame() : wxTheApp->GetTopWindow();
 464 }
 465
 466 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 467 {
 468     return new wxCommandProcessor;
 469 }
 470
 471 // true if safe to close
 472 bool wxDocument::OnSaveModified()
 473 {
 474     if ( IsModified() )
 475     {
 476         switch ( wxMessageBox
 477                  (
 478                     wxString::Format
 479                     (
 480                      _("Do you want to save changes to %s?"),
 481                      GetUserReadableName()
 482                     ),
 483                     wxTheApp->GetAppDisplayName(),
 484                     wxYES_NO | wxCANCEL | wxICON_QUESTION | wxCENTRE,
 485                     wxFindSuitableParent()
 486                  ) )
 487         {
 488             case wxNO:
 489                 Modify(false);
 490                 break;
 491
 492             case wxYES:
 493                 return Save();
 494
 495             case wxCANCEL:
 496                 return false;
 497         }
 498     }
 499
 500     return true;
 501 }
 502
 503 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 504 {
 505     return true;
 506 }
 507
 508 bool wxDocument::AddView(wxView *view)
 509 {
 510     if ( !m_documentViews.Member(view) )
 511     {
 512         m_documentViews.Append(view);
 513         OnChangedViewList();
 514     }
 515     return true;
 516 }
 517
 518 bool wxDocument::RemoveView(wxView *view)
 519 {
 520     (void)m_documentViews.DeleteObject(view);
 521     OnChangedViewList();
 522     return true;
 523 }
 524
 525 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 526 {
 527     return GetDocumentTemplate()->CreateView(this, flags) != NULL;
 528 }
 529
 530 // Called after a view is added or removed.
 531 // The default implementation deletes the document if
 532 // there are no more views.
 533 void wxDocument::OnChangedViewList()
 534 {
 535     if ( m_documentViews.empty() && OnSaveModified() )
 536         delete this;
 537 }
 538
 539 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 540 {
 541     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 542     while (node)
 543     {
 544         wxView *view = (wxView *)node->GetData();
 545         if (view != sender)
 546             view->OnUpdate(sender, hint);
 547         node = node->GetNext();
 548     }
 549 }
 550
 551 void wxDocument::NotifyClosing()
 552 {
 553     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 554     while (node)
 555     {
 556         wxView *view = (wxView *)node->GetData();
 557         view->OnClosingDocument();
 558         node = node->GetNext();
 559     }
 560 }
 561
 562 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 563 {
 564     m_documentFile = filename;
 565     OnChangeFilename(notifyViews);
 566 }
 567
 568 void wxDocument::OnChangeFilename(bool notifyViews)
 569 {
 570     if ( notifyViews )
 571     {
 572         // Notify the views that the filename has changed
 573         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 574         while (node)
 575         {
 576             wxView *view = (wxView *)node->GetData();
 577             view->OnChangeFilename();
 578             node = node->GetNext();
 579         }
 580     }
 581 }
 582
 583 bool wxDocument::DoSaveDocument(const wxString& file)
 584 {
 585 #if wxUSE_STD_IOSTREAM
 586     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 587     if ( !store )
 588 #else
 589     wxFileOutputStream store(file);
 590     if ( store.GetLastError() != wxSTREAM_NO_ERROR )
 591 #endif
 592     {
 593         wxLogError(_("File \"%s\" could not be opened for writing."), file);
 594         return false;
 595     }
 596
 597     if (!SaveObject(store))
 598     {
 599         wxLogError(_("Failed to save document to the file \"%s\"."), file);
 600         return false;
 601     }
 602
 603     return true;
 604 }
 605
 606 bool wxDocument::DoOpenDocument(const wxString& file)
 607 {
 608 #if wxUSE_STD_IOSTREAM
 609     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 610     if ( !store )
 611 #else
 612     wxFileInputStream store(file);
 613     if (store.GetLastError() != wxSTREAM_NO_ERROR || !store.IsOk())
 614 #endif
 615     {
 616         wxLogError(_("File \"%s\" could not be opened for reading."), file);
 617         return false;
 618     }
 619
 620 #if wxUSE_STD_IOSTREAM
 621     LoadObject(store);
 622     if ( !store )
 623 #else
 624     int res = LoadObject(store).GetLastError();
 625     if ( res != wxSTREAM_NO_ERROR && res != wxSTREAM_EOF )
 626 #endif
 627     {
 628         wxLogError(_("Failed to read document from the file \"%s\"."), file);
 629         return false;
 630     }
 631
 632     return true;
 633 }
 634
 635
 636 // ----------------------------------------------------------------------------
 637 // Document view
 638 // ----------------------------------------------------------------------------
 639
 640 wxView::wxView()
 641 {
 642     m_viewDocument = NULL;
 643
 644     m_viewFrame = NULL;
 645 }
 646
 647 wxView::~wxView()
 648 {
 649     GetDocumentManager()->ActivateView(this, false);
 650     m_viewDocument->RemoveView(this);
 651 }
 652
 653 bool wxView::TryBefore(wxEvent& event)
 654 {
 655     wxDocument * const doc = GetDocument();
 656     return doc && doc->ProcessEventHere(event);
 657 }
 658
 659 void wxView::OnActivateView(bool WXUNUSED(activate),
 660                             wxView *WXUNUSED(activeView),
 661                             wxView *WXUNUSED(deactiveView))
 662 {
 663 }
 664
 665 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 666 {
 667     OnDraw(dc);
 668 }
 669
 670 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 671 {
 672 }
 673
 674 void wxView::OnChangeFilename()
 675 {
 676     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 677     // generic MDI implementation so use SetLabel rather than SetTitle.
 678     // It should cause SetTitle() for top level windows.
 679     wxWindow *win = GetFrame();
 680     if (!win) return;
 681
 682     wxDocument *doc = GetDocument();
 683     if (!doc) return;
 684
 685     win->SetLabel(doc->GetUserReadableName());
 686 }
 687
 688 void wxView::SetDocument(wxDocument *doc)
 689 {
 690     m_viewDocument = doc;
 691     if (doc)
 692         doc->AddView(this);
 693 }
 694
 695 bool wxView::Close(bool deleteWindow)
 696 {
 697     return OnClose(deleteWindow);
 698 }
 699
 700 void wxView::Activate(bool activate)
 701 {
 702     if (GetDocument() && GetDocumentManager())
 703     {
 704         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 705         GetDocumentManager()->ActivateView(this, activate);
 706     }
 707 }
 708
 709 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 710 {
 711     return GetDocument() ? GetDocument()->Close() : true;
 712 }
 713
 714 #if wxUSE_PRINTING_ARCHITECTURE
 715 wxPrintout *wxView::OnCreatePrintout()
 716 {
 717     return new wxDocPrintout(this);
 718 }
 719 #endif // wxUSE_PRINTING_ARCHITECTURE
 720
 721 // ----------------------------------------------------------------------------
 722 // wxDocTemplate
 723 // ----------------------------------------------------------------------------
 724
 725 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 726                              const wxString& descr,
 727                              const wxString& filter,
 728                              const wxString& dir,
 729                              const wxString& ext,
 730                              const wxString& docTypeName,
 731                              const wxString& viewTypeName,
 732                              wxClassInfo *docClassInfo,
 733                              wxClassInfo *viewClassInfo,
 734                              long flags)
 735 {
 736     m_documentManager = manager;
 737     m_description = descr;
 738     m_directory = dir;
 739     m_defaultExt = ext;
 740     m_fileFilter = filter;
 741     m_flags = flags;
 742     m_docTypeName = docTypeName;
 743     m_viewTypeName = viewTypeName;
 744     m_documentManager->AssociateTemplate(this);
 745
 746     m_docClassInfo = docClassInfo;
 747     m_viewClassInfo = viewClassInfo;
 748 }
 749
 750 wxDocTemplate::~wxDocTemplate()
 751 {
 752     m_documentManager->DisassociateTemplate(this);
 753 }
 754
 755 // Tries to dynamically construct an object of the right class.
 756 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 757 {
 758     wxDocument * const doc = DoCreateDocument();
 759
 760     // VZ: this code doesn't delete doc if InitDocument() (i.e. doc->OnCreate())
 761     //     fails, is this intentional?
 762
 763     return doc && InitDocument(doc, path, flags) ? doc : NULL;
 764 }
 765
 766 bool
 767 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 768 {
 769     doc->SetFilename(path);
 770     doc->SetDocumentTemplate(this);
 771     GetDocumentManager()->AddDocument(doc);
 772     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 773
 774     if (doc->OnCreate(path, flags))
 775         return true;
 776
 777     if (GetDocumentManager()->GetDocuments().Member(doc))
 778         doc->DeleteAllViews();
 779     return false;
 780 }
 781
 782 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 783 {
 784     wxScopedPtr<wxView> view(DoCreateView());
 785     if ( !view )
 786         return NULL;
 787
 788     view->SetDocument(doc);
 789     if ( !view->OnCreate(doc, flags) )
 790         return NULL;
 791
 792     return view.release();
 793 }
 794
 795 // The default (very primitive) format detection: check is the extension is
 796 // that of the template
 797 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 798 {
 799     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 800     wxString anything = wxT ("*");
 801     while (parser.HasMoreTokens())
 802     {
 803         wxString filter = parser.GetNextToken();
 804         wxString filterExt = FindExtension (filter);
 805         if ( filter.IsSameAs (anything)    ||
 806              filterExt.IsSameAs (anything) ||
 807              filterExt.IsSameAs (FindExtension (path)) )
 808             return true;
 809     }
 810     return GetDefaultExtension().IsSameAs(FindExtension(path));
 811 }
 812
 813 wxDocument *wxDocTemplate::DoCreateDocument()
 814 {
 815     if (!m_docClassInfo)
 816         return NULL;
 817
 818     return static_cast<wxDocument *>(m_docClassInfo->CreateObject());
 819 }
 820
 821 wxView *wxDocTemplate::DoCreateView()
 822 {
 823     if (!m_viewClassInfo)
 824         return NULL;
 825
 826     return static_cast<wxView *>(m_viewClassInfo->CreateObject());
 827 }
 828
 829 // ----------------------------------------------------------------------------
 830 // wxDocManager
 831 // ----------------------------------------------------------------------------
 832
 833 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 834     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 835     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 836     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 837     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 838     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 839     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 840     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 841     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 842     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 843
 844     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 845     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
 846     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
 847     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
 848     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 849     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 850     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
 851     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 852     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 853
 854 #if wxUSE_PRINTING_ARCHITECTURE
 855     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 856     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 857
 858     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
 859     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
 860 #endif
 861 END_EVENT_TABLE()
 862
 863 wxDocManager* wxDocManager::sm_docManager = NULL;
 864
 865 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 866 {
 867     wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
 868
 869     sm_docManager = this;
 870
 871     m_defaultDocumentNameCounter = 1;
 872     m_currentView = NULL;
 873     m_maxDocsOpen = INT_MAX;
 874     m_fileHistory = NULL;
 875     if ( initialize )
 876         Initialize();
 877 }
 878
 879 wxDocManager::~wxDocManager()
 880 {
 881     Clear();
 882     delete m_fileHistory;
 883     sm_docManager = NULL;
 884 }
 885
 886 // closes the specified document
 887 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 888 {
 889     if ( !doc->Close() && !force )
 890         return false;
 891
 892     // Implicitly deletes the document when
 893     // the last view is deleted
 894     doc->DeleteAllViews();
 895
 896     // Check we're really deleted
 897     if (m_docs.Member(doc))
 898         delete doc;
 899
 900     return true;
 901 }
 902
 903 bool wxDocManager::CloseDocuments(bool force)
 904 {
 905     wxList::compatibility_iterator node = m_docs.GetFirst();
 906     while (node)
 907     {
 908         wxDocument *doc = (wxDocument *)node->GetData();
 909         wxList::compatibility_iterator next = node->GetNext();
 910
 911         if (!CloseDocument(doc, force))
 912             return false;
 913
 914         // This assumes that documents are not connected in
 915         // any way, i.e. deleting one document does NOT
 916         // delete another.
 917         node = next;
 918     }
 919     return true;
 920 }
 921
 922 bool wxDocManager::Clear(bool force)
 923 {
 924     if (!CloseDocuments(force))
 925         return false;
 926
 927     m_currentView = NULL;
 928
 929     wxList::compatibility_iterator node = m_templates.GetFirst();
 930     while (node)
 931     {
 932         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 933         wxList::compatibility_iterator next = node->GetNext();
 934         delete templ;
 935         node = next;
 936     }
 937     return true;
 938 }
 939
 940 bool wxDocManager::Initialize()
 941 {
 942     m_fileHistory = OnCreateFileHistory();
 943     return true;
 944 }
 945
 946 wxString wxDocManager::GetLastDirectory() const
 947 {
 948     // use the system-dependent default location for the document files if
 949     // we're being opened for the first time
 950     if ( m_lastDirectory.empty() )
 951     {
 952         wxDocManager * const self = const_cast<wxDocManager *>(this);
 953         self->m_lastDirectory = wxStandardPaths::Get().GetAppDocumentsDir();
 954     }
 955
 956     return m_lastDirectory;
 957 }
 958
 959 wxFileHistory *wxDocManager::OnCreateFileHistory()
 960 {
 961     return new wxFileHistory;
 962 }
 963
 964 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 965 {
 966     wxDocument *doc = GetCurrentDocument();
 967     if (!doc)
 968         return;
 969     if (doc->Close())
 970     {
 971         doc->DeleteAllViews();
 972         if (m_docs.Member(doc))
 973             delete doc;
 974     }
 975 }
 976
 977 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 978 {
 979     CloseDocuments(false);
 980 }
 981
 982 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 983 {
 984     CreateNewDocument();
 985 }
 986
 987 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 988 {
 989     if ( !CreateDocument("") )
 990     {
 991         OnOpenFileFailure();
 992     }
 993 }
 994
 995 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 996 {
 997     wxDocument *doc = GetCurrentDocument();
 998     if (!doc)
 999         return;
1000     doc->Revert();
1001 }
1002
1003 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1004 {
1005     wxDocument *doc = GetCurrentDocument();
1006     if (!doc)
1007         return;
1008     doc->Save();
1009 }
1010
1011 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1012 {
1013     wxDocument *doc = GetCurrentDocument();
1014     if (!doc)
1015         return;
1016     doc->SaveAs();
1017 }
1018
1019 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1020 {
1021 #if wxUSE_PRINTING_ARCHITECTURE
1022     wxView *view = GetActiveView();
1023     if (!view)
1024         return;
1025
1026     wxPrintout *printout = view->OnCreatePrintout();
1027     if (printout)
1028     {
1029         wxPrinter printer;
1030         printer.Print(view->GetFrame(), printout, true);
1031
1032         delete printout;
1033     }
1034 #endif // wxUSE_PRINTING_ARCHITECTURE
1035 }
1036
1037 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1038 {
1039 #if wxUSE_PRINTING_ARCHITECTURE
1040     wxView *view = GetActiveView();
1041     if (!view)
1042         return;
1043
1044     wxPrintout *printout = view->OnCreatePrintout();
1045     if (printout)
1046     {
1047         // Pass two printout objects: for preview, and possible printing.
1048         wxPrintPreviewBase *
1049             preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1050         if ( !preview->Ok() )
1051         {
1052             delete preview;
1053             wxLogError(_("Print preview creation failed."));
1054             return;
1055         }
1056
1057         wxPreviewFrame *
1058             frame = new wxPreviewFrame(preview, wxTheApp->GetTopWindow(),
1059                                        _("Print Preview"));
1060         frame->Centre(wxBOTH);
1061         frame->Initialize();
1062         frame->Show(true);
1063     }
1064 #endif // wxUSE_PRINTING_ARCHITECTURE
1065 }
1066
1067 void wxDocManager::OnUndo(wxCommandEvent& event)
1068 {
1069     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1070     if ( !cmdproc )
1071     {
1072         event.Skip();
1073         return;
1074     }
1075
1076     cmdproc->Undo();
1077 }
1078
1079 void wxDocManager::OnRedo(wxCommandEvent& event)
1080 {
1081     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1082     if ( !cmdproc )
1083     {
1084         event.Skip();
1085         return;
1086     }
1087
1088     cmdproc->Redo();
1089 }
1090
1091 // Handlers for UI update commands
1092
1093 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1094 {
1095     // CreateDocument() (which is called from OnFileOpen) may succeed
1096     // only when there is at least a template:
1097     event.Enable( GetTemplates().GetCount()>0 );
1098 }
1099
1100 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1101 {
1102     event.Enable( GetCurrentDocument() != NULL );
1103 }
1104
1105 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1106 {
1107     // CreateDocument() (which is called from OnFileNew) may succeed
1108     // only when there is at least a template:
1109     event.Enable( GetTemplates().GetCount()>0 );
1110 }
1111
1112 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1113 {
1114     wxDocument * const doc = GetCurrentDocument();
1115     event.Enable( doc && !doc->AlreadySaved() );
1116 }
1117
1118 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1119 {
1120     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1121     if ( !cmdproc )
1122     {
1123         event.Enable(false);
1124         return;
1125     }
1126
1127     event.Enable(cmdproc->CanUndo());
1128     cmdproc->SetMenuStrings();
1129 }
1130
1131 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1132 {
1133     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1134     if ( !cmdproc )
1135     {
1136         event.Enable(false);
1137         return;
1138     }
1139
1140     event.Enable(cmdproc->CanRedo());
1141     cmdproc->SetMenuStrings();
1142 }
1143
1144 wxView *wxDocManager::GetActiveView() const
1145 {
1146     wxView *view = GetCurrentView();
1147
1148     if ( !view && !m_docs.empty() )
1149     {
1150         // if we have exactly one document, consider its view to be the current
1151         // one
1152         //
1153         // VZ: I'm not exactly sure why is this needed but this is how this
1154         //     code used to behave before the bug #9518 was fixed and it seems
1155         //     safer to preserve the old logic
1156         wxList::compatibility_iterator node = m_docs.GetFirst();
1157         if ( !node->GetNext() )
1158         {
1159             wxDocument *doc = static_cast<wxDocument *>(node->GetData());
1160             view = doc->GetFirstView();
1161         }
1162         //else: we have more than one document
1163     }
1164
1165     return view;
1166 }
1167
1168 bool wxDocManager::TryBefore(wxEvent& event)
1169 {
1170     wxView * const view = GetActiveView();
1171     return view && view->ProcessEventHere(event);
1172 }
1173
1174 namespace
1175 {
1176
1177 // helper function: return only the visible templates
1178 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1179 {
1180     // select only the visible templates
1181     const size_t totalNumTemplates = allTemplates.GetCount();
1182     wxDocTemplates templates;
1183     if ( totalNumTemplates )
1184     {
1185         templates.reserve(totalNumTemplates);
1186
1187         for ( wxList::const_iterator i = allTemplates.begin(),
1188                                    end = allTemplates.end();
1189               i != end;
1190               ++i )
1191         {
1192             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1193             if ( temp->IsVisible() )
1194                 templates.push_back(temp);
1195         }
1196     }
1197
1198     return templates;
1199 }
1200
1201 } // anonymous namespace
1202
1203 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1204 {
1205     // this ought to be const but SelectDocumentType/Path() are not
1206     // const-correct and can't be changed as, being virtual, this risks
1207     // breaking user code overriding them
1208     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1209     const size_t numTemplates = templates.size();
1210     if ( !numTemplates )
1211     {
1212         // no templates can be used, can't create document
1213         return NULL;
1214     }
1215
1216
1217     // normally user should select the template to use but wxDOC_SILENT flag we
1218     // choose one ourselves
1219     wxString path = pathOrig;   // may be modified below
1220     wxDocTemplate *temp;
1221     if ( flags & wxDOC_SILENT )
1222     {
1223         wxASSERT_MSG( !path.empty(),
1224                       "using empty path with wxDOC_SILENT doesn't make sense" );
1225
1226         temp = FindTemplateForPath(path);
1227         if ( !temp )
1228         {
1229             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1230                          path);
1231         }
1232     }
1233     else // not silent, ask the user
1234     {
1235         // for the new file we need just the template, for an existing one we
1236         // need the template and the path, unless it's already specified
1237         if ( (flags & wxDOC_NEW) || !path.empty() )
1238             temp = SelectDocumentType(&templates[0], numTemplates);
1239         else
1240             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1241     }
1242
1243     if ( !temp )
1244         return NULL;
1245
1246     // check whether the document with this path is already opened
1247     if ( !path.empty() )
1248     {
1249         const wxFileName fn(path);
1250         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1251         {
1252             wxDocument * const doc = (wxDocument*)*i;
1253
1254             if ( fn == doc->GetFilename() )
1255             {
1256                 // file already open, just activate it and return
1257                 if ( doc->GetFirstView() )
1258                 {
1259                     ActivateView(doc->GetFirstView());
1260                     if ( doc->GetDocumentWindow() )
1261                         doc->GetDocumentWindow()->SetFocus();
1262                     return doc;
1263                 }
1264             }
1265         }
1266     }
1267
1268
1269     // no, we need to create a new document
1270
1271
1272     // if we've reached the max number of docs, close the first one.
1273     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1274     {
1275         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1276         {
1277             // can't open the new document if closing the old one failed
1278             return NULL;
1279         }
1280     }
1281
1282
1283     // do create and initialize the new document finally
1284     wxDocument * const docNew = temp->CreateDocument(path, flags);
1285     if ( !docNew )
1286         return NULL;
1287
1288     docNew->SetDocumentName(temp->GetDocumentName());
1289     docNew->SetDocumentTemplate(temp);
1290
1291     // call the appropriate function depending on whether we're creating a new
1292     // file or opening an existing one
1293     if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1294                              : docNew->OnOpenDocument(path)) )
1295     {
1296          // Document is implicitly deleted by DeleteAllViews
1297          docNew->DeleteAllViews();
1298          return NULL;
1299     }
1300
1301     // add the successfully opened file to MRU, but only if we're going to be
1302     // able to reopen it successfully later which requires the template for
1303     // this document to be retrievable from the file extension
1304     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1305         AddFileToHistory(path);
1306
1307     return docNew;
1308 }
1309
1310 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1311 {
1312     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1313     const size_t numTemplates = templates.size();
1314
1315     if ( numTemplates == 0 )
1316         return NULL;
1317
1318     wxDocTemplate * const
1319     temp = numTemplates == 1 ? templates[0]
1320                              : SelectViewType(&templates[0], numTemplates);
1321
1322     if ( !temp )
1323         return NULL;
1324
1325     wxView *view = temp->CreateView(doc, flags);
1326     if ( view )
1327         view->SetViewName(temp->GetViewName());
1328     return view;
1329 }
1330
1331 // Not yet implemented
1332 void
1333 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1334 {
1335 }
1336
1337 // Not yet implemented
1338 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1339 {
1340     return false;
1341 }
1342
1343 wxDocument *wxDocManager::GetCurrentDocument() const
1344 {
1345     wxView * const view = GetActiveView();
1346     return view ? view->GetDocument() : NULL;
1347 }
1348
1349 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1350 {
1351     wxDocument * const doc = GetCurrentDocument();
1352     return doc ? doc->GetCommandProcessor() : NULL;
1353 }
1354
1355 // Make a default name for a new document
1356 #if WXWIN_COMPATIBILITY_2_8
1357 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1358 {
1359     // we consider that this function can only be overridden by the user code,
1360     // not called by it as it only makes sense to call it internally, so we
1361     // don't bother to return anything from here
1362     return false;
1363 }
1364 #endif // WXWIN_COMPATIBILITY_2_8
1365
1366 wxString wxDocManager::MakeNewDocumentName()
1367 {
1368     wxString name;
1369
1370 #if WXWIN_COMPATIBILITY_2_8
1371     if ( !MakeDefaultName(name) )
1372 #endif // WXWIN_COMPATIBILITY_2_8
1373     {
1374         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1375         m_defaultDocumentNameCounter++;
1376     }
1377
1378     return name;
1379 }
1380
1381 // Make a frame title (override this to do something different)
1382 // If docName is empty, a document is not currently active.
1383 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1384 {
1385     wxString appName = wxTheApp->GetAppDisplayName();
1386     wxString title;
1387     if (!doc)
1388         title = appName;
1389     else
1390     {
1391         wxString docName = doc->GetUserReadableName();
1392         title = docName + wxString(_(" - ")) + appName;
1393     }
1394     return title;
1395 }
1396
1397
1398 // Not yet implemented
1399 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1400 {
1401     return NULL;
1402 }
1403
1404 // File history management
1405 void wxDocManager::AddFileToHistory(const wxString& file)
1406 {
1407     if (m_fileHistory)
1408         m_fileHistory->AddFileToHistory(file);
1409 }
1410
1411 void wxDocManager::RemoveFileFromHistory(size_t i)
1412 {
1413     if (m_fileHistory)
1414         m_fileHistory->RemoveFileFromHistory(i);
1415 }
1416
1417 wxString wxDocManager::GetHistoryFile(size_t i) const
1418 {
1419     wxString histFile;
1420
1421     if (m_fileHistory)
1422         histFile = m_fileHistory->GetHistoryFile(i);
1423
1424     return histFile;
1425 }
1426
1427 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1428 {
1429     if (m_fileHistory)
1430         m_fileHistory->UseMenu(menu);
1431 }
1432
1433 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1434 {
1435     if (m_fileHistory)
1436         m_fileHistory->RemoveMenu(menu);
1437 }
1438
1439 #if wxUSE_CONFIG
1440 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1441 {
1442     if (m_fileHistory)
1443         m_fileHistory->Load(config);
1444 }
1445
1446 void wxDocManager::FileHistorySave(wxConfigBase& config)
1447 {
1448     if (m_fileHistory)
1449         m_fileHistory->Save(config);
1450 }
1451 #endif
1452
1453 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1454 {
1455     if (m_fileHistory)
1456         m_fileHistory->AddFilesToMenu(menu);
1457 }
1458
1459 void wxDocManager::FileHistoryAddFilesToMenu()
1460 {
1461     if (m_fileHistory)
1462         m_fileHistory->AddFilesToMenu();
1463 }
1464
1465 size_t wxDocManager::GetHistoryFilesCount() const
1466 {
1467     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1468 }
1469
1470
1471 // Find out the document template via matching in the document file format
1472 // against that of the template
1473 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1474 {
1475     wxDocTemplate *theTemplate = NULL;
1476
1477     // Find the template which this extension corresponds to
1478     for (size_t i = 0; i < m_templates.GetCount(); i++)
1479     {
1480         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1481         if ( temp->FileMatchesTemplate(path) )
1482         {
1483             theTemplate = temp;
1484             break;
1485         }
1486     }
1487     return theTemplate;
1488 }
1489
1490 // Prompts user to open a file, using file specs in templates.
1491 // Must extend the file selector dialog or implement own; OR
1492 // match the extension to the template extension.
1493
1494 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1495                                                 int noTemplates,
1496                                                 wxString& path,
1497                                                 long WXUNUSED(flags),
1498                                                 bool WXUNUSED(save))
1499 {
1500 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1501     wxString descrBuf;
1502
1503     for (int i = 0; i < noTemplates; i++)
1504     {
1505         if (templates[i]->IsVisible())
1506         {
1507             // add a '|' to separate this filter from the previous one
1508             if ( !descrBuf.empty() )
1509                 descrBuf << wxT('|');
1510
1511             descrBuf << templates[i]->GetDescription()
1512                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1513                 << templates[i]->GetFileFilter();
1514         }
1515     }
1516 #else
1517     wxString descrBuf = wxT("*.*");
1518     wxUnusedVar(noTemplates);
1519 #endif
1520
1521     int FilterIndex = -1;
1522
1523     wxWindow* parent = wxFindSuitableParent();
1524
1525     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1526                                         GetLastDirectory(),
1527                                         wxEmptyString,
1528                                         &FilterIndex,
1529                                         descrBuf,
1530                                         0,
1531                                         parent);
1532
1533     wxDocTemplate *theTemplate = NULL;
1534     if (!pathTmp.empty())
1535     {
1536         if (!wxFileExists(pathTmp))
1537         {
1538             wxString msgTitle;
1539             if (!wxTheApp->GetAppDisplayName().empty())
1540                 msgTitle = wxTheApp->GetAppDisplayName();
1541             else
1542                 msgTitle = wxString(_("File error"));
1543
1544             wxMessageBox(_("Sorry, could not open this file."),
1545                          msgTitle,
1546                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1547                          parent);
1548
1549             path = wxEmptyString;
1550             return NULL;
1551         }
1552
1553         SetLastDirectory(wxPathOnly(pathTmp));
1554
1555         path = pathTmp;
1556
1557         // first choose the template using the extension, if this fails (i.e.
1558         // wxFileSelectorEx() didn't fill it), then use the path
1559         if ( FilterIndex != -1 )
1560             theTemplate = templates[FilterIndex];
1561         if ( !theTemplate )
1562             theTemplate = FindTemplateForPath(path);
1563         if ( !theTemplate )
1564         {
1565             // Since we do not add files with non-default extensions to the
1566             // file history this can only happen if the application changes the
1567             // allowed templates in runtime.
1568             wxMessageBox(_("Sorry, the format for this file is unknown."),
1569                          _("Open File"),
1570                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1571                          parent);
1572         }
1573     }
1574     else
1575     {
1576         path.clear();
1577     }
1578
1579     return theTemplate;
1580 }
1581
1582 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1583                                                 int noTemplates, bool sort)
1584 {
1585     wxArrayString strings;
1586     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1587     int i;
1588     int n = 0;
1589
1590     for (i = 0; i < noTemplates; i++)
1591     {
1592         if (templates[i]->IsVisible())
1593         {
1594             int j;
1595             bool want = true;
1596             for (j = 0; j < n; j++)
1597             {
1598                 //filter out NOT unique documents + view combinations
1599                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1600                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1601                    )
1602                     want = false;
1603             }
1604
1605             if ( want )
1606             {
1607                 strings.Add(templates[i]->m_description);
1608
1609                 data[n] = templates[i];
1610                 n ++;
1611             }
1612         }
1613     }  // for
1614
1615     if (sort)
1616     {
1617         strings.Sort(); // ascending sort
1618         // Yes, this will be slow, but template lists
1619         // are typically short.
1620         int j;
1621         n = strings.Count();
1622         for (i = 0; i < n; i++)
1623         {
1624             for (j = 0; j < noTemplates; j++)
1625             {
1626                 if (strings[i] == templates[j]->m_description)
1627                     data[i] = templates[j];
1628             }
1629         }
1630     }
1631
1632     wxDocTemplate *theTemplate;
1633
1634     switch ( n )
1635     {
1636         case 0:
1637             // no visible templates, hence nothing to choose from
1638             theTemplate = NULL;
1639             break;
1640
1641         case 1:
1642             // don't propose the user to choose if he has no choice
1643             theTemplate = data[0];
1644             break;
1645
1646         default:
1647             // propose the user to choose one of several
1648             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1649                           (
1650                             _("Select a document template"),
1651                             _("Templates"),
1652                             strings,
1653                             (void **)data.get(),
1654                             wxFindSuitableParent()
1655                           );
1656     }
1657
1658     return theTemplate;
1659 }
1660
1661 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1662                                             int noTemplates, bool sort)
1663 {
1664     wxArrayString strings;
1665     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1666     int i;
1667     int n = 0;
1668
1669     for (i = 0; i < noTemplates; i++)
1670     {
1671         wxDocTemplate *templ = templates[i];
1672         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1673         {
1674             int j;
1675             bool want = true;
1676             for (j = 0; j < n; j++)
1677             {
1678                 //filter out NOT unique views
1679                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1680                     want = false;
1681             }
1682
1683             if ( want )
1684             {
1685                 strings.Add(templ->m_viewTypeName);
1686                 data[n] = templ;
1687                 n ++;
1688             }
1689         }
1690     }
1691
1692     if (sort)
1693     {
1694         strings.Sort(); // ascending sort
1695         // Yes, this will be slow, but template lists
1696         // are typically short.
1697         int j;
1698         n = strings.Count();
1699         for (i = 0; i < n; i++)
1700         {
1701             for (j = 0; j < noTemplates; j++)
1702             {
1703                 if (strings[i] == templates[j]->m_viewTypeName)
1704                     data[i] = templates[j];
1705             }
1706         }
1707     }
1708
1709     wxDocTemplate *theTemplate;
1710
1711     // the same logic as above
1712     switch ( n )
1713     {
1714         case 0:
1715             theTemplate = NULL;
1716             break;
1717
1718         case 1:
1719             theTemplate = data[0];
1720             break;
1721
1722         default:
1723             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1724                           (
1725                             _("Select a document view"),
1726                             _("Views"),
1727                             strings,
1728                             (void **)data.get(),
1729                             wxFindSuitableParent()
1730                           );
1731
1732     }
1733
1734     return theTemplate;
1735 }
1736
1737 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1738 {
1739     if (!m_templates.Member(temp))
1740         m_templates.Append(temp);
1741 }
1742
1743 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1744 {
1745     m_templates.DeleteObject(temp);
1746 }
1747
1748 // Add and remove a document from the manager's list
1749 void wxDocManager::AddDocument(wxDocument *doc)
1750 {
1751     if (!m_docs.Member(doc))
1752         m_docs.Append(doc);
1753 }
1754
1755 void wxDocManager::RemoveDocument(wxDocument *doc)
1756 {
1757     m_docs.DeleteObject(doc);
1758 }
1759
1760 // Views or windows should inform the document manager
1761 // when a view is going in or out of focus
1762 void wxDocManager::ActivateView(wxView *view, bool activate)
1763 {
1764     if ( activate )
1765     {
1766         m_currentView = view;
1767     }
1768     else // deactivate
1769     {
1770         if ( m_currentView == view )
1771         {
1772             // don't keep stale pointer
1773             m_currentView = NULL;
1774         }
1775     }
1776 }
1777
1778 // ----------------------------------------------------------------------------
1779 // Default document child frame
1780 // ----------------------------------------------------------------------------
1781
1782 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1783     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1784     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1785 END_EVENT_TABLE()
1786
1787 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1788                                  wxView *view,
1789                                  wxFrame *frame,
1790                                  wxWindowID id,
1791                                  const wxString& title,
1792                                  const wxPoint& pos,
1793                                  const wxSize& size,
1794                                  long style,
1795                                  const wxString& name)
1796                : wxFrame(frame, id, title, pos, size, style, name)
1797 {
1798     m_childDocument = doc;
1799     m_childView = view;
1800     if (view)
1801         view->SetFrame(this);
1802 }
1803
1804 bool wxDocChildFrame::TryBefore(wxEvent& event)
1805 {
1806     if ( m_childView )
1807     {
1808         // FIXME: why is this needed here?
1809         m_childView->Activate(true);
1810
1811         if ( m_childView->ProcessEventHere(event) )
1812             return true;
1813     }
1814
1815     return wxFrame::TryBefore(event);
1816 }
1817
1818 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1819 {
1820     wxFrame::OnActivate(event);
1821
1822     if (m_childView)
1823         m_childView->Activate(event.GetActive());
1824 }
1825
1826 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1827 {
1828     if ( !m_childView )
1829         return;
1830
1831     // passing false to Close() means to not delete associated window
1832     if ( event.CanVeto() && !m_childView->Close(false) )
1833     {
1834         event.Veto();
1835         return;
1836     }
1837
1838     m_childView->Activate(false);
1839     delete m_childView;
1840     m_childView = NULL;
1841     m_childDocument = NULL;
1842
1843     Destroy();
1844 }
1845
1846 // ----------------------------------------------------------------------------
1847 // Default parent frame
1848 // ----------------------------------------------------------------------------
1849
1850 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1851     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1852     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1853     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1854 END_EVENT_TABLE()
1855
1856 wxDocParentFrame::wxDocParentFrame()
1857 {
1858     m_docManager = NULL;
1859 }
1860
1861 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1862                                    wxFrame *frame,
1863                                    wxWindowID id,
1864                                    const wxString& title,
1865                                    const wxPoint& pos,
1866                                    const wxSize& size,
1867                                    long style,
1868                                    const wxString& name)
1869                 : wxFrame(frame, id, title, pos, size, style, name)
1870 {
1871     m_docManager = manager;
1872 }
1873
1874 bool wxDocParentFrame::Create(wxDocManager *manager,
1875                               wxFrame *frame,
1876                               wxWindowID id,
1877                               const wxString& title,
1878                               const wxPoint& pos,
1879                               const wxSize& size,
1880                               long style,
1881                               const wxString& name)
1882 {
1883     m_docManager = manager;
1884     return base_type::Create(frame, id, title, pos, size, style, name);
1885 }
1886
1887 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1888 {
1889     Close();
1890 }
1891
1892 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1893 {
1894     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1895     wxString filename(m_docManager->GetHistoryFile(n));
1896     if ( filename.empty() )
1897         return;
1898
1899     wxString errMsg; // must contain exactly one "%s" if non-empty
1900     if ( wxFile::Exists(filename) )
1901     {
1902         // try to open it
1903         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1904             return;
1905
1906         errMsg = _("The file '%s' couldn't be opened.");
1907     }
1908     else // file doesn't exist
1909     {
1910         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1911     }
1912
1913
1914     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1915
1916     // remove the file which we can't open from the MRU list
1917     m_docManager->RemoveFileFromHistory(n);
1918
1919     // and tell the user about it
1920     wxLogError(errMsg + '\n' +
1921                _("It has been removed from the most recently used files list."),
1922                filename);
1923 }
1924
1925 // Extend event processing to search the view's event table
1926 bool wxDocParentFrame::TryBefore(wxEvent& event)
1927 {
1928     if ( m_docManager && m_docManager->ProcessEventHere(event) )
1929         return true;
1930
1931     return wxFrame::TryBefore(event);
1932 }
1933
1934 // Define the behaviour for the frame closing
1935 // - must delete all frames except for the main one.
1936 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1937 {
1938     if (m_docManager->Clear(!event.CanVeto()))
1939     {
1940         Destroy();
1941     }
1942     else
1943         event.Veto();
1944 }
1945
1946 #if wxUSE_PRINTING_ARCHITECTURE
1947
1948 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1949              : wxPrintout(title)
1950 {
1951     m_printoutView = view;
1952 }
1953
1954 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1955 {
1956     wxDC *dc = GetDC();
1957
1958     // Get the logical pixels per inch of screen and printer
1959     int ppiScreenX, ppiScreenY;
1960     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1961     wxUnusedVar(ppiScreenY);
1962     int ppiPrinterX, ppiPrinterY;
1963     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1964     wxUnusedVar(ppiPrinterY);
1965
1966     // This scales the DC so that the printout roughly represents the
1967     // the screen scaling. The text point size _should_ be the right size
1968     // but in fact is too small for some reason. This is a detail that will
1969     // need to be addressed at some point but can be fudged for the
1970     // moment.
1971     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1972
1973     // Now we have to check in case our real page size is reduced
1974     // (e.g. because we're drawing to a print preview memory DC)
1975     int pageWidth, pageHeight;
1976     int w, h;
1977     dc->GetSize(&w, &h);
1978     GetPageSizePixels(&pageWidth, &pageHeight);
1979     wxUnusedVar(pageHeight);
1980
1981     // If printer pageWidth == current DC width, then this doesn't
1982     // change. But w might be the preview bitmap width, so scale down.
1983     float overallScale = scale * (float)(w/(float)pageWidth);
1984     dc->SetUserScale(overallScale, overallScale);
1985
1986     if (m_printoutView)
1987     {
1988         m_printoutView->OnDraw(dc);
1989     }
1990     return true;
1991 }
1992
1993 bool wxDocPrintout::HasPage(int pageNum)
1994 {
1995     return (pageNum == 1);
1996 }
1997
1998 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1999 {
2000     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2001         return false;
2002
2003     return true;
2004 }
2005
2006 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
2007                                 int *selPageFrom, int *selPageTo)
2008 {
2009     *minPage = 1;
2010     *maxPage = 1;
2011     *selPageFrom = 1;
2012     *selPageTo = 1;
2013 }
2014
2015 #endif // wxUSE_PRINTING_ARCHITECTURE
2016
2017 // ----------------------------------------------------------------------------
2018 // File history (a.k.a. MRU, most recently used, files list)
2019 // ----------------------------------------------------------------------------
2020
2021 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2022 {
2023     m_fileMaxFiles = maxFiles;
2024     m_idBase = idBase;
2025 }
2026
2027 void wxFileHistory::AddFileToHistory(const wxString& file)
2028 {
2029     // check if we don't already have this file
2030     const wxFileName fnNew(file);
2031     size_t i,
2032            numFiles = m_fileHistory.size();
2033     for ( i = 0; i < numFiles; i++ )
2034     {
2035         if ( fnNew == m_fileHistory[i] )
2036         {
2037             // we do have it, move it to the top of the history
2038             RemoveFileFromHistory(i);
2039             numFiles--;
2040             break;
2041         }
2042     }
2043
2044     // if we already have a full history, delete the one at the end
2045     if ( numFiles == m_fileMaxFiles )
2046     {
2047         RemoveFileFromHistory(--numFiles);
2048     }
2049
2050     // add a new menu item to all file menus (they will be updated below)
2051     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2052         node;
2053         node = node->GetNext() )
2054     {
2055         wxMenu * const menu = (wxMenu *)node->GetData();
2056
2057         if ( !numFiles && menu->GetMenuItemCount() )
2058             menu->AppendSeparator();
2059
2060         // label doesn't matter, it will be set below anyhow, but it can't
2061         // be empty (this is supposed to indicate a stock item)
2062         menu->Append(m_idBase + numFiles, " ");
2063     }
2064
2065     // insert the new file in the beginning of the file history
2066     m_fileHistory.insert(m_fileHistory.begin(), file);
2067     numFiles++;
2068
2069     // update the labels in all menus
2070     for ( i = 0; i < numFiles; i++ )
2071     {
2072         // if in same directory just show the filename; otherwise the full path
2073         const wxFileName fnOld(m_fileHistory[i]);
2074
2075         wxString pathInMenu;
2076         if ( fnOld.GetPath() == fnNew.GetPath() )
2077         {
2078             pathInMenu = fnOld.GetFullName();
2079         }
2080         else // file in different directory
2081         {
2082             // absolute path; could also set relative path
2083             pathInMenu = m_fileHistory[i];
2084         }
2085
2086         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2087               node;
2088               node = node->GetNext() )
2089         {
2090             wxMenu * const menu = (wxMenu *)node->GetData();
2091
2092             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2093         }
2094     }
2095 }
2096
2097 void wxFileHistory::RemoveFileFromHistory(size_t i)
2098 {
2099     size_t numFiles = m_fileHistory.size();
2100     wxCHECK_RET( i < numFiles,
2101                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2102
2103     // delete the element from the array
2104     m_fileHistory.RemoveAt(i);
2105     numFiles--;
2106
2107     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2108           node;
2109           node = node->GetNext() )
2110     {
2111         wxMenu * const menu = (wxMenu *) node->GetData();
2112
2113         // shift filenames up
2114         for ( size_t j = i; j < numFiles; j++ )
2115         {
2116             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2117         }
2118
2119         // delete the last menu item which is unused now
2120         const wxWindowID lastItemId = m_idBase + numFiles;
2121         if ( menu->FindItem(lastItemId) )
2122             menu->Delete(lastItemId);
2123
2124         // delete the last separator too if no more files are left
2125         if ( m_fileHistory.empty() )
2126         {
2127             const wxMenuItemList::compatibility_iterator
2128                 nodeLast = menu->GetMenuItems().GetLast();
2129             if ( nodeLast )
2130             {
2131                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2132                 if ( lastMenuItem->IsSeparator() )
2133                     menu->Delete(lastMenuItem);
2134             }
2135             //else: menu is empty somehow
2136         }
2137     }
2138 }
2139
2140 void wxFileHistory::UseMenu(wxMenu *menu)
2141 {
2142     if ( !m_fileMenus.Member(menu) )
2143         m_fileMenus.Append(menu);
2144 }
2145
2146 void wxFileHistory::RemoveMenu(wxMenu *menu)
2147 {
2148     m_fileMenus.DeleteObject(menu);
2149 }
2150
2151 #if wxUSE_CONFIG
2152 void wxFileHistory::Load(const wxConfigBase& config)
2153 {
2154     m_fileHistory.Clear();
2155
2156     wxString buf;
2157     buf.Printf(wxT("file%d"), 1);
2158
2159     wxString historyFile;
2160     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2161            config.Read(buf, &historyFile) && !historyFile.empty())
2162     {
2163         m_fileHistory.Add(historyFile);
2164
2165         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2166         historyFile = wxEmptyString;
2167     }
2168
2169     AddFilesToMenu();
2170 }
2171
2172 void wxFileHistory::Save(wxConfigBase& config)
2173 {
2174     size_t i;
2175     for (i = 0; i < m_fileMaxFiles; i++)
2176     {
2177         wxString buf;
2178         buf.Printf(wxT("file%d"), (int)i+1);
2179         if (i < m_fileHistory.GetCount())
2180             config.Write(buf, wxString(m_fileHistory[i]));
2181         else
2182             config.Write(buf, wxEmptyString);
2183     }
2184 }
2185 #endif // wxUSE_CONFIG
2186
2187 void wxFileHistory::AddFilesToMenu()
2188 {
2189     if ( m_fileHistory.empty() )
2190         return;
2191
2192     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2193           node;
2194           node = node->GetNext() )
2195     {
2196         AddFilesToMenu((wxMenu *) node->GetData());
2197     }
2198 }
2199
2200 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2201 {
2202     if ( m_fileHistory.empty() )
2203         return;
2204
2205     if ( menu->GetMenuItemCount() )
2206         menu->AppendSeparator();
2207
2208     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2209     {
2210         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2211     }
2212 }
2213
2214 // ----------------------------------------------------------------------------
2215 // Permits compatibility with existing file formats and functions that
2216 // manipulate files directly
2217 // ----------------------------------------------------------------------------
2218
2219 #if wxUSE_STD_IOSTREAM
2220
2221 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2222 {
2223     wxFFile file(filename, _T("rb"));
2224     if ( !file.IsOpened() )
2225         return false;
2226
2227     char buf[4096];
2228
2229     size_t nRead;
2230     do
2231     {
2232         nRead = file.Read(buf, WXSIZEOF(buf));
2233         if ( file.Error() )
2234             return false;
2235
2236         stream.write(buf, nRead);
2237         if ( !stream )
2238             return false;
2239     }
2240     while ( !file.Eof() );
2241
2242     return true;
2243 }
2244
2245 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2246 {
2247     wxFFile file(filename, _T("wb"));
2248     if ( !file.IsOpened() )
2249         return false;
2250
2251     char buf[4096];
2252     do
2253     {
2254         stream.read(buf, WXSIZEOF(buf));
2255         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2256         {
2257             if ( !file.Write(buf, stream.gcount()) )
2258                 return false;
2259         }
2260     }
2261     while ( !stream.eof() );
2262
2263     return true;
2264 }
2265
2266 #else // !wxUSE_STD_IOSTREAM
2267
2268 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2269 {
2270     wxFFile file(filename, _T("rb"));
2271     if ( !file.IsOpened() )
2272         return false;
2273
2274     char buf[4096];
2275
2276     size_t nRead;
2277     do
2278     {
2279         nRead = file.Read(buf, WXSIZEOF(buf));
2280         if ( file.Error() )
2281             return false;
2282
2283         stream.Write(buf, nRead);
2284         if ( !stream )
2285             return false;
2286     }
2287     while ( !file.Eof() );
2288
2289     return true;
2290 }
2291
2292 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2293 {
2294     wxFFile file(filename, _T("wb"));
2295     if ( !file.IsOpened() )
2296         return false;
2297
2298     char buf[4096];
2299     for ( ;; )
2300     {
2301         stream.Read(buf, WXSIZEOF(buf));
2302
2303         const size_t nRead = stream.LastRead();
2304         if ( !nRead )
2305         {
2306             if ( stream.Eof() )
2307                 break;
2308
2309             return false;
2310         }
2311
2312         if ( !file.Write(buf, nRead) )
2313             return false;
2314     }
2315
2316     return true;
2317 }
2318
2319 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2320
2321 #endif // wxUSE_DOC_VIEW_ARCHITECTURE