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