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 = GetCurrentView();
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 = GetCurrentView();
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::GetCurrentView() const
1144 {
1145     if (m_currentView)
1146         return m_currentView;
1147     if (m_docs.GetCount() == 1)
1148     {
1149         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1150         return doc->GetFirstView();
1151     }
1152     return NULL;
1153 }
1154
1155 bool wxDocManager::TryValidator(wxEvent& event)
1156 {
1157     wxView * const view = GetCurrentView();
1158     return view && view->ProcessEventHere(event);
1159 }
1160
1161 namespace
1162 {
1163
1164 // helper function: return only the visible templates
1165 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1166 {
1167     // select only the visible templates
1168     const size_t totalNumTemplates = allTemplates.GetCount();
1169     wxDocTemplates templates;
1170     if ( totalNumTemplates )
1171     {
1172         templates.reserve(totalNumTemplates);
1173
1174         for ( wxList::const_iterator i = allTemplates.begin(),
1175                                    end = allTemplates.end();
1176               i != end;
1177               ++i )
1178         {
1179             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1180             if ( temp->IsVisible() )
1181                 templates.push_back(temp);
1182         }
1183     }
1184
1185     return templates;
1186 }
1187
1188 } // anonymous namespace
1189
1190 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1191 {
1192     // this ought to be const but SelectDocumentType/Path() are not
1193     // const-correct and can't be changed as, being virtual, this risks
1194     // breaking user code overriding them
1195     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1196     const size_t numTemplates = templates.size();
1197     if ( !numTemplates )
1198     {
1199         // no templates can be used, can't create document
1200         return NULL;
1201     }
1202
1203
1204     // normally user should select the template to use but wxDOC_SILENT flag we
1205     // choose one ourselves
1206     wxString path = pathOrig;   // may be modified below
1207     wxDocTemplate *temp;
1208     if ( flags & wxDOC_SILENT )
1209     {
1210         wxASSERT_MSG( !path.empty(),
1211                       "using empty path with wxDOC_SILENT doesn't make sense" );
1212
1213         temp = FindTemplateForPath(path);
1214         if ( !temp )
1215         {
1216             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1217                          path);
1218         }
1219     }
1220     else // not silent, ask the user
1221     {
1222         // for the new file we need just the template, for an existing one we
1223         // need the template and the path, unless it's already specified
1224         if ( (flags & wxDOC_NEW) || !path.empty() )
1225             temp = SelectDocumentType(&templates[0], numTemplates);
1226         else
1227             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1228     }
1229
1230     if ( !temp )
1231         return NULL;
1232
1233     // check whether the document with this path is already opened
1234     if ( !path.empty() )
1235     {
1236         const wxFileName fn(path);
1237         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1238         {
1239             wxDocument * const doc = (wxDocument*)*i;
1240
1241             if ( fn == doc->GetFilename() )
1242             {
1243                 // file already open, just activate it and return
1244                 if ( doc->GetFirstView() )
1245                 {
1246                     ActivateView(doc->GetFirstView());
1247                     if ( doc->GetDocumentWindow() )
1248                         doc->GetDocumentWindow()->SetFocus();
1249                     return doc;
1250                 }
1251             }
1252         }
1253     }
1254
1255
1256     // no, we need to create a new document
1257
1258
1259     // if we've reached the max number of docs, close the first one.
1260     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1261     {
1262         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1263         {
1264             // can't open the new document if closing the old one failed
1265             return NULL;
1266         }
1267     }
1268
1269
1270     // do create and initialize the new document finally
1271     wxDocument * const docNew = temp->CreateDocument(path, flags);
1272     if ( !docNew )
1273         return NULL;
1274
1275     docNew->SetDocumentName(temp->GetDocumentName());
1276     docNew->SetDocumentTemplate(temp);
1277
1278     // call the appropriate function depending on whether we're creating a new
1279     // file or opening an existing one
1280     if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1281                              : docNew->OnOpenDocument(path)) )
1282     {
1283          // Document is implicitly deleted by DeleteAllViews
1284          docNew->DeleteAllViews();
1285          return NULL;
1286     }
1287
1288     // add the successfully opened file to MRU, but only if we're going to be
1289     // able to reopen it successfully later which requires the template for
1290     // this document to be retrievable from the file extension
1291     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1292         AddFileToHistory(path);
1293
1294     return docNew;
1295 }
1296
1297 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1298 {
1299     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1300     const size_t numTemplates = templates.size();
1301
1302     if ( numTemplates == 0 )
1303         return NULL;
1304
1305     wxDocTemplate * const
1306     temp = numTemplates == 1 ? templates[0]
1307                              : SelectViewType(&templates[0], numTemplates);
1308
1309     if ( !temp )
1310         return NULL;
1311
1312     wxView *view = temp->CreateView(doc, flags);
1313     if ( view )
1314         view->SetViewName(temp->GetViewName());
1315     return view;
1316 }
1317
1318 // Not yet implemented
1319 void
1320 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1321 {
1322 }
1323
1324 // Not yet implemented
1325 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1326 {
1327     return false;
1328 }
1329
1330 wxDocument *wxDocManager::GetCurrentDocument() const
1331 {
1332     wxView * const view = GetCurrentView();
1333     return view ? view->GetDocument() : NULL;
1334 }
1335
1336 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1337 {
1338     wxDocument * const doc = GetCurrentDocument();
1339     return doc ? doc->GetCommandProcessor() : NULL;
1340 }
1341
1342 // Make a default name for a new document
1343 #if WXWIN_COMPATIBILITY_2_8
1344 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1345 {
1346     // we consider that this function can only be overridden by the user code,
1347     // not called by it as it only makes sense to call it internally, so we
1348     // don't bother to return anything from here
1349     return false;
1350 }
1351 #endif // WXWIN_COMPATIBILITY_2_8
1352
1353 wxString wxDocManager::MakeNewDocumentName()
1354 {
1355     wxString name;
1356
1357 #if WXWIN_COMPATIBILITY_2_8
1358     if ( !MakeDefaultName(name) )
1359 #endif // WXWIN_COMPATIBILITY_2_8
1360     {
1361         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1362         m_defaultDocumentNameCounter++;
1363     }
1364
1365     return name;
1366 }
1367
1368 // Make a frame title (override this to do something different)
1369 // If docName is empty, a document is not currently active.
1370 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1371 {
1372     wxString appName = wxTheApp->GetAppDisplayName();
1373     wxString title;
1374     if (!doc)
1375         title = appName;
1376     else
1377     {
1378         wxString docName = doc->GetUserReadableName();
1379         title = docName + wxString(_(" - ")) + appName;
1380     }
1381     return title;
1382 }
1383
1384
1385 // Not yet implemented
1386 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1387 {
1388     return NULL;
1389 }
1390
1391 // File history management
1392 void wxDocManager::AddFileToHistory(const wxString& file)
1393 {
1394     if (m_fileHistory)
1395         m_fileHistory->AddFileToHistory(file);
1396 }
1397
1398 void wxDocManager::RemoveFileFromHistory(size_t i)
1399 {
1400     if (m_fileHistory)
1401         m_fileHistory->RemoveFileFromHistory(i);
1402 }
1403
1404 wxString wxDocManager::GetHistoryFile(size_t i) const
1405 {
1406     wxString histFile;
1407
1408     if (m_fileHistory)
1409         histFile = m_fileHistory->GetHistoryFile(i);
1410
1411     return histFile;
1412 }
1413
1414 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1415 {
1416     if (m_fileHistory)
1417         m_fileHistory->UseMenu(menu);
1418 }
1419
1420 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1421 {
1422     if (m_fileHistory)
1423         m_fileHistory->RemoveMenu(menu);
1424 }
1425
1426 #if wxUSE_CONFIG
1427 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1428 {
1429     if (m_fileHistory)
1430         m_fileHistory->Load(config);
1431 }
1432
1433 void wxDocManager::FileHistorySave(wxConfigBase& config)
1434 {
1435     if (m_fileHistory)
1436         m_fileHistory->Save(config);
1437 }
1438 #endif
1439
1440 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1441 {
1442     if (m_fileHistory)
1443         m_fileHistory->AddFilesToMenu(menu);
1444 }
1445
1446 void wxDocManager::FileHistoryAddFilesToMenu()
1447 {
1448     if (m_fileHistory)
1449         m_fileHistory->AddFilesToMenu();
1450 }
1451
1452 size_t wxDocManager::GetHistoryFilesCount() const
1453 {
1454     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1455 }
1456
1457
1458 // Find out the document template via matching in the document file format
1459 // against that of the template
1460 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1461 {
1462     wxDocTemplate *theTemplate = NULL;
1463
1464     // Find the template which this extension corresponds to
1465     for (size_t i = 0; i < m_templates.GetCount(); i++)
1466     {
1467         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1468         if ( temp->FileMatchesTemplate(path) )
1469         {
1470             theTemplate = temp;
1471             break;
1472         }
1473     }
1474     return theTemplate;
1475 }
1476
1477 // Prompts user to open a file, using file specs in templates.
1478 // Must extend the file selector dialog or implement own; OR
1479 // match the extension to the template extension.
1480
1481 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1482                                                 int noTemplates,
1483                                                 wxString& path,
1484                                                 long WXUNUSED(flags),
1485                                                 bool WXUNUSED(save))
1486 {
1487 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1488     wxString descrBuf;
1489
1490     for (int i = 0; i < noTemplates; i++)
1491     {
1492         if (templates[i]->IsVisible())
1493         {
1494             // add a '|' to separate this filter from the previous one
1495             if ( !descrBuf.empty() )
1496                 descrBuf << wxT('|');
1497
1498             descrBuf << templates[i]->GetDescription()
1499                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1500                 << templates[i]->GetFileFilter();
1501         }
1502     }
1503 #else
1504     wxString descrBuf = wxT("*.*");
1505     wxUnusedVar(noTemplates);
1506 #endif
1507
1508     int FilterIndex = -1;
1509
1510     wxWindow* parent = wxFindSuitableParent();
1511
1512     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1513                                         GetLastDirectory(),
1514                                         wxEmptyString,
1515                                         &FilterIndex,
1516                                         descrBuf,
1517                                         0,
1518                                         parent);
1519
1520     wxDocTemplate *theTemplate = NULL;
1521     if (!pathTmp.empty())
1522     {
1523         if (!wxFileExists(pathTmp))
1524         {
1525             wxString msgTitle;
1526             if (!wxTheApp->GetAppDisplayName().empty())
1527                 msgTitle = wxTheApp->GetAppDisplayName();
1528             else
1529                 msgTitle = wxString(_("File error"));
1530
1531             wxMessageBox(_("Sorry, could not open this file."),
1532                          msgTitle,
1533                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1534                          parent);
1535
1536             path = wxEmptyString;
1537             return NULL;
1538         }
1539
1540         SetLastDirectory(wxPathOnly(pathTmp));
1541
1542         path = pathTmp;
1543
1544         // first choose the template using the extension, if this fails (i.e.
1545         // wxFileSelectorEx() didn't fill it), then use the path
1546         if ( FilterIndex != -1 )
1547             theTemplate = templates[FilterIndex];
1548         if ( !theTemplate )
1549             theTemplate = FindTemplateForPath(path);
1550         if ( !theTemplate )
1551         {
1552             // Since we do not add files with non-default extensions to the
1553             // file history this can only happen if the application changes the
1554             // allowed templates in runtime.
1555             wxMessageBox(_("Sorry, the format for this file is unknown."),
1556                          _("Open File"),
1557                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1558                          parent);
1559         }
1560     }
1561     else
1562     {
1563         path.clear();
1564     }
1565
1566     return theTemplate;
1567 }
1568
1569 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1570                                                 int noTemplates, bool sort)
1571 {
1572     wxArrayString strings;
1573     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1574     int i;
1575     int n = 0;
1576
1577     for (i = 0; i < noTemplates; i++)
1578     {
1579         if (templates[i]->IsVisible())
1580         {
1581             int j;
1582             bool want = true;
1583             for (j = 0; j < n; j++)
1584             {
1585                 //filter out NOT unique documents + view combinations
1586                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1587                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1588                    )
1589                     want = false;
1590             }
1591
1592             if ( want )
1593             {
1594                 strings.Add(templates[i]->m_description);
1595
1596                 data[n] = templates[i];
1597                 n ++;
1598             }
1599         }
1600     }  // for
1601
1602     if (sort)
1603     {
1604         strings.Sort(); // ascending sort
1605         // Yes, this will be slow, but template lists
1606         // are typically short.
1607         int j;
1608         n = strings.Count();
1609         for (i = 0; i < n; i++)
1610         {
1611             for (j = 0; j < noTemplates; j++)
1612             {
1613                 if (strings[i] == templates[j]->m_description)
1614                     data[i] = templates[j];
1615             }
1616         }
1617     }
1618
1619     wxDocTemplate *theTemplate;
1620
1621     switch ( n )
1622     {
1623         case 0:
1624             // no visible templates, hence nothing to choose from
1625             theTemplate = NULL;
1626             break;
1627
1628         case 1:
1629             // don't propose the user to choose if he has no choice
1630             theTemplate = data[0];
1631             break;
1632
1633         default:
1634             // propose the user to choose one of several
1635             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1636                           (
1637                             _("Select a document template"),
1638                             _("Templates"),
1639                             strings,
1640                             (void **)data.get(),
1641                             wxFindSuitableParent()
1642                           );
1643     }
1644
1645     return theTemplate;
1646 }
1647
1648 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1649                                             int noTemplates, bool sort)
1650 {
1651     wxArrayString strings;
1652     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1653     int i;
1654     int n = 0;
1655
1656     for (i = 0; i < noTemplates; i++)
1657     {
1658         wxDocTemplate *templ = templates[i];
1659         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1660         {
1661             int j;
1662             bool want = true;
1663             for (j = 0; j < n; j++)
1664             {
1665                 //filter out NOT unique views
1666                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1667                     want = false;
1668             }
1669
1670             if ( want )
1671             {
1672                 strings.Add(templ->m_viewTypeName);
1673                 data[n] = templ;
1674                 n ++;
1675             }
1676         }
1677     }
1678
1679     if (sort)
1680     {
1681         strings.Sort(); // ascending sort
1682         // Yes, this will be slow, but template lists
1683         // are typically short.
1684         int j;
1685         n = strings.Count();
1686         for (i = 0; i < n; i++)
1687         {
1688             for (j = 0; j < noTemplates; j++)
1689             {
1690                 if (strings[i] == templates[j]->m_viewTypeName)
1691                     data[i] = templates[j];
1692             }
1693         }
1694     }
1695
1696     wxDocTemplate *theTemplate;
1697
1698     // the same logic as above
1699     switch ( n )
1700     {
1701         case 0:
1702             theTemplate = NULL;
1703             break;
1704
1705         case 1:
1706             theTemplate = data[0];
1707             break;
1708
1709         default:
1710             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1711                           (
1712                             _("Select a document view"),
1713                             _("Views"),
1714                             strings,
1715                             (void **)data.get(),
1716                             wxFindSuitableParent()
1717                           );
1718
1719     }
1720
1721     return theTemplate;
1722 }
1723
1724 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1725 {
1726     if (!m_templates.Member(temp))
1727         m_templates.Append(temp);
1728 }
1729
1730 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1731 {
1732     m_templates.DeleteObject(temp);
1733 }
1734
1735 // Add and remove a document from the manager's list
1736 void wxDocManager::AddDocument(wxDocument *doc)
1737 {
1738     if (!m_docs.Member(doc))
1739         m_docs.Append(doc);
1740 }
1741
1742 void wxDocManager::RemoveDocument(wxDocument *doc)
1743 {
1744     m_docs.DeleteObject(doc);
1745 }
1746
1747 // Views or windows should inform the document manager
1748 // when a view is going in or out of focus
1749 void wxDocManager::ActivateView(wxView *view, bool activate)
1750 {
1751     if ( activate )
1752     {
1753         m_currentView = view;
1754     }
1755     else // deactivate
1756     {
1757         if ( m_currentView == view )
1758         {
1759             // don't keep stale pointer
1760             m_currentView = NULL;
1761         }
1762     }
1763 }
1764
1765 // ----------------------------------------------------------------------------
1766 // Default document child frame
1767 // ----------------------------------------------------------------------------
1768
1769 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1770     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1771     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1772 END_EVENT_TABLE()
1773
1774 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1775                                  wxView *view,
1776                                  wxFrame *frame,
1777                                  wxWindowID id,
1778                                  const wxString& title,
1779                                  const wxPoint& pos,
1780                                  const wxSize& size,
1781                                  long style,
1782                                  const wxString& name)
1783                : wxFrame(frame, id, title, pos, size, style, name)
1784 {
1785     m_childDocument = doc;
1786     m_childView = view;
1787     if (view)
1788         view->SetFrame(this);
1789 }
1790
1791 bool wxDocChildFrame::TryValidator(wxEvent& event)
1792 {
1793     if ( !m_childView )
1794         return false;
1795
1796     // FIXME: why is this needed here?
1797     m_childView->Activate(true);
1798
1799     return m_childView->ProcessEventHere(event);
1800 }
1801
1802 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1803 {
1804     wxFrame::OnActivate(event);
1805
1806     if (m_childView)
1807         m_childView->Activate(event.GetActive());
1808 }
1809
1810 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1811 {
1812     if ( !m_childView )
1813         return;
1814
1815     // passing false to Close() means to not delete associated window
1816     if ( event.CanVeto() && !m_childView->Close(false) )
1817     {
1818         event.Veto();
1819         return;
1820     }
1821
1822     m_childView->Activate(false);
1823     delete m_childView;
1824     m_childView = NULL;
1825     m_childDocument = NULL;
1826
1827     Destroy();
1828 }
1829
1830 // ----------------------------------------------------------------------------
1831 // Default parent frame
1832 // ----------------------------------------------------------------------------
1833
1834 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1835     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1836     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1837     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1838 END_EVENT_TABLE()
1839
1840 wxDocParentFrame::wxDocParentFrame()
1841 {
1842     m_docManager = NULL;
1843 }
1844
1845 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1846                                    wxFrame *frame,
1847                                    wxWindowID id,
1848                                    const wxString& title,
1849                                    const wxPoint& pos,
1850                                    const wxSize& size,
1851                                    long style,
1852                                    const wxString& name)
1853                 : wxFrame(frame, id, title, pos, size, style, name)
1854 {
1855     m_docManager = manager;
1856 }
1857
1858 bool wxDocParentFrame::Create(wxDocManager *manager,
1859                               wxFrame *frame,
1860                               wxWindowID id,
1861                               const wxString& title,
1862                               const wxPoint& pos,
1863                               const wxSize& size,
1864                               long style,
1865                               const wxString& name)
1866 {
1867     m_docManager = manager;
1868     return base_type::Create(frame, id, title, pos, size, style, name);
1869 }
1870
1871 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1872 {
1873     Close();
1874 }
1875
1876 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1877 {
1878     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1879     wxString filename(m_docManager->GetHistoryFile(n));
1880     if ( filename.empty() )
1881         return;
1882
1883     wxString errMsg; // must contain exactly one "%s" if non-empty
1884     if ( wxFile::Exists(filename) )
1885     {
1886         // try to open it
1887         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1888             return;
1889
1890         errMsg = _("The file '%s' couldn't be opened.");
1891     }
1892     else // file doesn't exist
1893     {
1894         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1895     }
1896
1897
1898     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1899
1900     // remove the file which we can't open from the MRU list
1901     m_docManager->RemoveFileFromHistory(n);
1902
1903     // and tell the user about it
1904     wxLogError(errMsg + '\n' +
1905                _("It has been removed from the most recently used files list."),
1906                filename);
1907 }
1908
1909 // Extend event processing to search the view's event table
1910 bool wxDocParentFrame::TryValidator(wxEvent& event)
1911 {
1912     return m_docManager && m_docManager->ProcessEventHere(event);
1913 }
1914
1915 // Define the behaviour for the frame closing
1916 // - must delete all frames except for the main one.
1917 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1918 {
1919     if (m_docManager->Clear(!event.CanVeto()))
1920     {
1921         Destroy();
1922     }
1923     else
1924         event.Veto();
1925 }
1926
1927 #if wxUSE_PRINTING_ARCHITECTURE
1928
1929 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1930              : wxPrintout(title)
1931 {
1932     m_printoutView = view;
1933 }
1934
1935 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1936 {
1937     wxDC *dc = GetDC();
1938
1939     // Get the logical pixels per inch of screen and printer
1940     int ppiScreenX, ppiScreenY;
1941     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1942     wxUnusedVar(ppiScreenY);
1943     int ppiPrinterX, ppiPrinterY;
1944     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1945     wxUnusedVar(ppiPrinterY);
1946
1947     // This scales the DC so that the printout roughly represents the
1948     // the screen scaling. The text point size _should_ be the right size
1949     // but in fact is too small for some reason. This is a detail that will
1950     // need to be addressed at some point but can be fudged for the
1951     // moment.
1952     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1953
1954     // Now we have to check in case our real page size is reduced
1955     // (e.g. because we're drawing to a print preview memory DC)
1956     int pageWidth, pageHeight;
1957     int w, h;
1958     dc->GetSize(&w, &h);
1959     GetPageSizePixels(&pageWidth, &pageHeight);
1960     wxUnusedVar(pageHeight);
1961
1962     // If printer pageWidth == current DC width, then this doesn't
1963     // change. But w might be the preview bitmap width, so scale down.
1964     float overallScale = scale * (float)(w/(float)pageWidth);
1965     dc->SetUserScale(overallScale, overallScale);
1966
1967     if (m_printoutView)
1968     {
1969         m_printoutView->OnDraw(dc);
1970     }
1971     return true;
1972 }
1973
1974 bool wxDocPrintout::HasPage(int pageNum)
1975 {
1976     return (pageNum == 1);
1977 }
1978
1979 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1980 {
1981     if (!wxPrintout::OnBeginDocument(startPage, endPage))
1982         return false;
1983
1984     return true;
1985 }
1986
1987 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
1988                                 int *selPageFrom, int *selPageTo)
1989 {
1990     *minPage = 1;
1991     *maxPage = 1;
1992     *selPageFrom = 1;
1993     *selPageTo = 1;
1994 }
1995
1996 #endif // wxUSE_PRINTING_ARCHITECTURE
1997
1998 // ----------------------------------------------------------------------------
1999 // File history (a.k.a. MRU, most recently used, files list)
2000 // ----------------------------------------------------------------------------
2001
2002 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2003 {
2004     m_fileMaxFiles = maxFiles;
2005     m_idBase = idBase;
2006 }
2007
2008 void wxFileHistory::AddFileToHistory(const wxString& file)
2009 {
2010     // check if we don't already have this file
2011     const wxFileName fnNew(file);
2012     size_t i,
2013            numFiles = m_fileHistory.size();
2014     for ( i = 0; i < numFiles; i++ )
2015     {
2016         if ( fnNew == m_fileHistory[i] )
2017         {
2018             // we do have it, move it to the top of the history
2019             RemoveFileFromHistory(i);
2020             numFiles--;
2021             break;
2022         }
2023     }
2024
2025     // if we already have a full history, delete the one at the end
2026     if ( numFiles == m_fileMaxFiles )
2027     {
2028         RemoveFileFromHistory(--numFiles);
2029     }
2030
2031     // add a new menu item to all file menus (they will be updated below)
2032     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2033         node;
2034         node = node->GetNext() )
2035     {
2036         wxMenu * const menu = (wxMenu *)node->GetData();
2037
2038         if ( !numFiles && menu->GetMenuItemCount() )
2039             menu->AppendSeparator();
2040
2041         // label doesn't matter, it will be set below anyhow, but it can't
2042         // be empty (this is supposed to indicate a stock item)
2043         menu->Append(m_idBase + numFiles, " ");
2044     }
2045
2046     // insert the new file in the beginning of the file history
2047     m_fileHistory.insert(m_fileHistory.begin(), file);
2048     numFiles++;
2049
2050     // update the labels in all menus
2051     for ( i = 0; i < numFiles; i++ )
2052     {
2053         // if in same directory just show the filename; otherwise the full path
2054         const wxFileName fnOld(m_fileHistory[i]);
2055
2056         wxString pathInMenu;
2057         if ( fnOld.GetPath() == fnNew.GetPath() )
2058         {
2059             pathInMenu = fnOld.GetFullName();
2060         }
2061         else // file in different directory
2062         {
2063             // absolute path; could also set relative path
2064             pathInMenu = m_fileHistory[i];
2065         }
2066
2067         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2068               node;
2069               node = node->GetNext() )
2070         {
2071             wxMenu * const menu = (wxMenu *)node->GetData();
2072
2073             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2074         }
2075     }
2076 }
2077
2078 void wxFileHistory::RemoveFileFromHistory(size_t i)
2079 {
2080     size_t numFiles = m_fileHistory.size();
2081     wxCHECK_RET( i < numFiles,
2082                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2083
2084     // delete the element from the array
2085     m_fileHistory.RemoveAt(i);
2086     numFiles--;
2087
2088     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2089           node;
2090           node = node->GetNext() )
2091     {
2092         wxMenu * const menu = (wxMenu *) node->GetData();
2093
2094         // shift filenames up
2095         for ( size_t j = i; j < numFiles; j++ )
2096         {
2097             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2098         }
2099
2100         // delete the last menu item which is unused now
2101         const wxWindowID lastItemId = m_idBase + numFiles;
2102         if ( menu->FindItem(lastItemId) )
2103             menu->Delete(lastItemId);
2104
2105         // delete the last separator too if no more files are left
2106         if ( m_fileHistory.empty() )
2107         {
2108             const wxMenuItemList::compatibility_iterator
2109                 nodeLast = menu->GetMenuItems().GetLast();
2110             if ( nodeLast )
2111             {
2112                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2113                 if ( lastMenuItem->IsSeparator() )
2114                     menu->Delete(lastMenuItem);
2115             }
2116             //else: menu is empty somehow
2117         }
2118     }
2119 }
2120
2121 void wxFileHistory::UseMenu(wxMenu *menu)
2122 {
2123     if ( !m_fileMenus.Member(menu) )
2124         m_fileMenus.Append(menu);
2125 }
2126
2127 void wxFileHistory::RemoveMenu(wxMenu *menu)
2128 {
2129     m_fileMenus.DeleteObject(menu);
2130 }
2131
2132 #if wxUSE_CONFIG
2133 void wxFileHistory::Load(const wxConfigBase& config)
2134 {
2135     m_fileHistory.Clear();
2136
2137     wxString buf;
2138     buf.Printf(wxT("file%d"), 1);
2139
2140     wxString historyFile;
2141     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2142            config.Read(buf, &historyFile) && !historyFile.empty())
2143     {
2144         m_fileHistory.Add(historyFile);
2145
2146         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2147         historyFile = wxEmptyString;
2148     }
2149
2150     AddFilesToMenu();
2151 }
2152
2153 void wxFileHistory::Save(wxConfigBase& config)
2154 {
2155     size_t i;
2156     for (i = 0; i < m_fileMaxFiles; i++)
2157     {
2158         wxString buf;
2159         buf.Printf(wxT("file%d"), (int)i+1);
2160         if (i < m_fileHistory.GetCount())
2161             config.Write(buf, wxString(m_fileHistory[i]));
2162         else
2163             config.Write(buf, wxEmptyString);
2164     }
2165 }
2166 #endif // wxUSE_CONFIG
2167
2168 void wxFileHistory::AddFilesToMenu()
2169 {
2170     if ( m_fileHistory.empty() )
2171         return;
2172
2173     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2174           node;
2175           node = node->GetNext() )
2176     {
2177         AddFilesToMenu((wxMenu *) node->GetData());
2178     }
2179 }
2180
2181 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2182 {
2183     if ( m_fileHistory.empty() )
2184         return;
2185
2186     if ( menu->GetMenuItemCount() )
2187         menu->AppendSeparator();
2188
2189     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2190     {
2191         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2192     }
2193 }
2194
2195 // ----------------------------------------------------------------------------
2196 // Permits compatibility with existing file formats and functions that
2197 // manipulate files directly
2198 // ----------------------------------------------------------------------------
2199
2200 #if wxUSE_STD_IOSTREAM
2201
2202 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2203 {
2204     wxFFile file(filename, _T("rb"));
2205     if ( !file.IsOpened() )
2206         return false;
2207
2208     char buf[4096];
2209
2210     size_t nRead;
2211     do
2212     {
2213         nRead = file.Read(buf, WXSIZEOF(buf));
2214         if ( file.Error() )
2215             return false;
2216
2217         stream.write(buf, nRead);
2218         if ( !stream )
2219             return false;
2220     }
2221     while ( !file.Eof() );
2222
2223     return true;
2224 }
2225
2226 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2227 {
2228     wxFFile file(filename, _T("wb"));
2229     if ( !file.IsOpened() )
2230         return false;
2231
2232     char buf[4096];
2233     do
2234     {
2235         stream.read(buf, WXSIZEOF(buf));
2236         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2237         {
2238             if ( !file.Write(buf, stream.gcount()) )
2239                 return false;
2240         }
2241     }
2242     while ( !stream.eof() );
2243
2244     return true;
2245 }
2246
2247 #else // !wxUSE_STD_IOSTREAM
2248
2249 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2250 {
2251     wxFFile file(filename, _T("rb"));
2252     if ( !file.IsOpened() )
2253         return false;
2254
2255     char buf[4096];
2256
2257     size_t nRead;
2258     do
2259     {
2260         nRead = file.Read(buf, WXSIZEOF(buf));
2261         if ( file.Error() )
2262             return false;
2263
2264         stream.Write(buf, nRead);
2265         if ( !stream )
2266             return false;
2267     }
2268     while ( !file.Eof() );
2269
2270     return true;
2271 }
2272
2273 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2274 {
2275     wxFFile file(filename, _T("wb"));
2276     if ( !file.IsOpened() )
2277         return false;
2278
2279     char buf[4096];
2280     for ( ;; )
2281     {
2282         stream.Read(buf, WXSIZEOF(buf));
2283
2284         const size_t nRead = stream.LastRead();
2285         if ( !nRead )
2286         {
2287             if ( stream.Eof() )
2288                 break;
2289
2290             return false;
2291         }
2292
2293         if ( !file.Write(buf, nRead) )
2294             return false;
2295     }
2296
2297     return true;
2298 }
2299
2300 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2301
2302 #endif // wxUSE_DOC_VIEW_ARCHITECTURE