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