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