src/common/docview.cpp

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