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/vector.h"
  60
  61 #if wxUSE_STD_IOSTREAM
  62     #include "wx/ioswrap.h"
  63     #include "wx/beforestd.h"
  64     #if wxUSE_IOSTREAMH
  65         #include <fstream.h>
  66     #else
  67         #include <fstream>
  68     #endif
  69     #include "wx/afterstd.h"
  70 #else
  71     #include "wx/wfstream.h"
  72 #endif
  73
  74 typedef wxVector<wxDocTemplate *> wxDocTemplates;
  75
  76 // ----------------------------------------------------------------------------
  77 // wxWidgets macros
  78 // ----------------------------------------------------------------------------
  79
  80 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  81 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  82 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  83 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  84 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  85 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  86
  87 #if wxUSE_PRINTING_ARCHITECTURE
  88     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  89 #endif
  90
  91 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  92
  93 // ============================================================================
  94 // implementation
  95 // ============================================================================
  96
  97 // ----------------------------------------------------------------------------
  98 // private helpers
  99 // ----------------------------------------------------------------------------
 100
 101 namespace
 102 {
 103
 104 wxWindow *wxFindSuitableParent()
 105 {
 106     wxWindow * const win = wxGetTopLevelParent(wxWindow::FindFocus());
 107
 108     return win ? win : wxTheApp->GetTopWindow();
 109 }
 110
 111 wxString FindExtension(const wxString& path)
 112 {
 113     wxString ext;
 114     wxSplitPath(path, NULL, NULL, &ext);
 115
 116     // VZ: extensions are considered not case sensitive - is this really a good
 117     //     idea?
 118     return ext.MakeLower();
 119 }
 120
 121 // return the string used for the MRU list items in the menu
 122 //
 123 // NB: the index n is 0-based, as usual, but the strings start from 1
 124 wxString GetMRUEntryLabel(int n, const wxString& path)
 125 {
 126     // we need to quote '&' characters which are used for mnemonics
 127     wxString pathInMenu(path);
 128     pathInMenu.Replace("&", "&&");
 129
 130     return wxString::Format("&%d %s", n + 1, pathInMenu);
 131 }
 132
 133 } // anonymous namespace
 134
 135 // ----------------------------------------------------------------------------
 136 // Definition of wxDocument
 137 // ----------------------------------------------------------------------------
 138
 139 wxDocument::wxDocument(wxDocument *parent)
 140 {
 141     m_documentModified = false;
 142     m_documentParent = parent;
 143     m_documentTemplate = NULL;
 144     m_commandProcessor = NULL;
 145     m_savedYet = false;
 146 }
 147
 148 bool wxDocument::DeleteContents()
 149 {
 150     return true;
 151 }
 152
 153 wxDocument::~wxDocument()
 154 {
 155     DeleteContents();
 156
 157     if (m_commandProcessor)
 158         delete m_commandProcessor;
 159
 160     if (GetDocumentManager())
 161         GetDocumentManager()->RemoveDocument(this);
 162
 163     // Not safe to do here, since it'll invoke virtual view functions
 164     // expecting to see valid derived objects: and by the time we get here,
 165     // we've called destructors higher up.
 166     //DeleteAllViews();
 167 }
 168
 169 bool wxDocument::Close()
 170 {
 171     if (OnSaveModified())
 172         return OnCloseDocument();
 173     else
 174         return false;
 175 }
 176
 177 bool wxDocument::OnCloseDocument()
 178 {
 179     // Tell all views that we're about to close
 180     NotifyClosing();
 181     DeleteContents();
 182     Modify(false);
 183     return true;
 184 }
 185
 186 // Note that this implicitly deletes the document when the last view is
 187 // deleted.
 188 bool wxDocument::DeleteAllViews()
 189 {
 190     wxDocManager* manager = GetDocumentManager();
 191
 192     // first check if all views agree to be closed
 193     const wxList::iterator end = m_documentViews.end();
 194     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 195     {
 196         wxView *view = (wxView *)*i;
 197         if ( !view->Close() )
 198             return false;
 199     }
 200
 201     // all views agreed to close, now do close them
 202     if ( m_documentViews.empty() )
 203     {
 204         // normally the document would be implicitly deleted when the last view
 205         // is, but if don't have any views, do it here instead
 206         if ( manager && manager->GetDocuments().Member(this) )
 207             delete this;
 208     }
 209     else // have views
 210     {
 211         // as we delete elements we iterate over, don't use the usual "from
 212         // begin to end" loop
 213         for ( ;; )
 214         {
 215             wxView *view = (wxView *)*m_documentViews.begin();
 216
 217             bool isLastOne = m_documentViews.size() == 1;
 218
 219             // this always deletes the node implicitly and if this is the last
 220             // view also deletes this object itself (also implicitly, great),
 221             // so we can't test for m_documentViews.empty() after calling this!
 222             delete view;
 223
 224             if ( isLastOne )
 225                 break;
 226         }
 227     }
 228
 229     return true;
 230 }
 231
 232 wxView *wxDocument::GetFirstView() const
 233 {
 234     if (m_documentViews.GetCount() == 0)
 235         return NULL;
 236     return (wxView *)m_documentViews.GetFirst()->GetData();
 237 }
 238
 239 wxDocManager *wxDocument::GetDocumentManager() const
 240 {
 241     return m_documentTemplate ? m_documentTemplate->GetDocumentManager() : NULL;
 242 }
 243
 244 bool wxDocument::OnNewDocument()
 245 {
 246     if ( !OnSaveModified() )
 247         return false;
 248
 249     if ( !OnCloseDocument() )
 250         return false;
 251     DeleteContents();
 252     Modify(false);
 253     SetDocumentSaved(false);
 254
 255     const wxString name = GetDocumentManager()->MakeNewDocumentName();
 256     SetTitle(name);
 257     SetFilename(name, true);
 258
 259     return true;
 260 }
 261
 262 bool wxDocument::Save()
 263 {
 264     if (!IsModified() && m_savedYet)
 265         return true;
 266
 267     if ( m_documentFile.empty() || !m_savedYet )
 268         return SaveAs();
 269
 270     return OnSaveDocument(m_documentFile);
 271 }
 272
 273 bool wxDocument::SaveAs()
 274 {
 275     wxDocTemplate *docTemplate = GetDocumentTemplate();
 276     if (!docTemplate)
 277         return false;
 278
 279 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 280     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 281
 282     // Now see if there are some other template with identical view and document
 283     // classes, whose filters may also be used.
 284
 285     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 286     {
 287         wxList::compatibility_iterator node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
 288         while (node)
 289         {
 290             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 291
 292             if (t->IsVisible() && t != docTemplate &&
 293                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 294                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 295             {
 296                 // add a '|' to separate this filter from the previous one
 297                 if ( !filter.empty() )
 298                     filter << wxT('|');
 299
 300                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 301                        << t->GetFileFilter();
 302             }
 303
 304             node = node->GetNext();
 305         }
 306     }
 307 #else
 308     wxString filter = docTemplate->GetFileFilter() ;
 309 #endif
 310     wxString defaultDir = docTemplate->GetDirectory();
 311     if (defaultDir.IsEmpty())
 312         defaultDir = wxPathOnly(GetFilename());
 313
 314     wxString tmp = wxFileSelector(_("Save As"),
 315             defaultDir,
 316             wxFileNameFromPath(GetFilename()),
 317             docTemplate->GetDefaultExtension(),
 318             filter,
 319             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 320             GetDocumentWindow());
 321
 322     if (tmp.empty())
 323         return false;
 324
 325     wxString fileName(tmp);
 326     wxString path, name, ext;
 327     wxSplitPath(fileName, & path, & name, & ext);
 328
 329     if (ext.empty())
 330     {
 331         fileName += wxT(".");
 332         fileName += docTemplate->GetDefaultExtension();
 333     }
 334
 335     SetFilename(fileName);
 336     SetTitle(wxFileNameFromPath(fileName));
 337
 338     // Notify the views that the filename has changed
 339     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 340     while (node)
 341     {
 342         wxView *view = (wxView *)node->GetData();
 343         view->OnChangeFilename();
 344         node = node->GetNext();
 345     }
 346
 347     // Files that were not saved correctly are not added to the FileHistory.
 348     if (!OnSaveDocument(m_documentFile))
 349         return false;
 350
 351    // A file that doesn't use the default extension of its document template cannot be opened
 352    // via the FileHistory, so we do not add it.
 353    if (docTemplate->FileMatchesTemplate(fileName))
 354    {
 355        GetDocumentManager()->AddFileToHistory(fileName);
 356    }
 357    else
 358    {
 359        // The user will probably not be able to open the file again, so
 360        // we 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     if ( !OnSaveModified() )
 386         return false;
 387
 388     if ( !DoOpenDocument(file) )
 389         return false;
 390
 391     SetFilename(file, true);
 392     Modify(false);
 393     m_savedYet = true;
 394
 395     UpdateAllViews();
 396
 397     return true;
 398 }
 399
 400 #if wxUSE_STD_IOSTREAM
 401 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 402 #else
 403 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 404 #endif
 405 {
 406     return stream;
 407 }
 408
 409 #if wxUSE_STD_IOSTREAM
 410 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 411 #else
 412 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 413 #endif
 414 {
 415     return stream;
 416 }
 417
 418 bool wxDocument::Revert()
 419 {
 420     return false;
 421 }
 422
 423
 424 // Get title, or filename if no title, else unnamed
 425 #if WXWIN_COMPATIBILITY_2_8
 426 bool wxDocument::GetPrintableName(wxString& buf) const
 427 {
 428     // this function can not only be overridden by the user code but also
 429     // called by it so we need to ensure that we return the same thing as
 430     // GetUserReadableName() but we can't call it because this would result in
 431     // an infinite recursion, hence we use the helper DoGetUserReadableName()
 432     buf = DoGetUserReadableName();
 433
 434     return true;
 435 }
 436 #endif // WXWIN_COMPATIBILITY_2_8
 437
 438 wxString wxDocument::GetUserReadableName() const
 439 {
 440 #if WXWIN_COMPATIBILITY_2_8
 441     // we need to call the old virtual function to ensure that the overridden
 442     // version of it is still called
 443     wxString name;
 444     if ( GetPrintableName(name) )
 445         return name;
 446 #endif // WXWIN_COMPATIBILITY_2_8
 447
 448     return DoGetUserReadableName();
 449 }
 450
 451 wxString wxDocument::DoGetUserReadableName() const
 452 {
 453     if ( !m_documentTitle.empty() )
 454         return m_documentTitle;
 455
 456     if ( !m_documentFile.empty() )
 457         return wxFileNameFromPath(m_documentFile);
 458
 459     return _("unnamed");
 460 }
 461
 462 wxWindow *wxDocument::GetDocumentWindow() const
 463 {
 464     wxView *view = GetFirstView();
 465     if (view)
 466         return view->GetFrame();
 467     else
 468         return wxTheApp->GetTopWindow();
 469 }
 470
 471 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 472 {
 473     return new wxCommandProcessor;
 474 }
 475
 476 // true if safe to close
 477 bool wxDocument::OnSaveModified()
 478 {
 479     if ( IsModified() )
 480     {
 481         switch ( wxMessageBox
 482                  (
 483                     wxString::Format
 484                     (
 485                      _("Do you want to save changes to document %s?"),
 486                      GetUserReadableName()
 487                     ),
 488                     wxTheApp->GetAppDisplayName(),
 489                     wxYES_NO | wxCANCEL | wxICON_QUESTION,
 490                     GetDocumentWindow()
 491                  ) )
 492         {
 493             case wxNO:
 494                 Modify(false);
 495                 break;
 496
 497             case wxYES:
 498                 return Save();
 499
 500             case wxCANCEL:
 501                 return false;
 502         }
 503     }
 504
 505     return true;
 506 }
 507
 508 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 509 {
 510     return true;
 511 }
 512
 513 bool wxDocument::AddView(wxView *view)
 514 {
 515     if ( !m_documentViews.Member(view) )
 516     {
 517         m_documentViews.Append(view);
 518         OnChangedViewList();
 519     }
 520     return true;
 521 }
 522
 523 bool wxDocument::RemoveView(wxView *view)
 524 {
 525     (void)m_documentViews.DeleteObject(view);
 526     OnChangedViewList();
 527     return true;
 528 }
 529
 530 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 531 {
 532     return GetDocumentTemplate()->CreateView(this, flags) != NULL;
 533 }
 534
 535 // Called after a view is added or removed.
 536 // The default implementation deletes the document if
 537 // there are no more views.
 538 void wxDocument::OnChangedViewList()
 539 {
 540     if ( m_documentViews.empty() && OnSaveModified() )
 541         delete this;
 542 }
 543
 544 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 545 {
 546     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 547     while (node)
 548     {
 549         wxView *view = (wxView *)node->GetData();
 550         if (view != sender)
 551             view->OnUpdate(sender, hint);
 552         node = node->GetNext();
 553     }
 554 }
 555
 556 void wxDocument::NotifyClosing()
 557 {
 558     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 559     while (node)
 560     {
 561         wxView *view = (wxView *)node->GetData();
 562         view->OnClosingDocument();
 563         node = node->GetNext();
 564     }
 565 }
 566
 567 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 568 {
 569     m_documentFile = filename;
 570     if ( notifyViews )
 571     {
 572         // Notify the views that the filename has changed
 573         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 574         while (node)
 575         {
 576             wxView *view = (wxView *)node->GetData();
 577             view->OnChangeFilename();
 578             node = node->GetNext();
 579         }
 580     }
 581 }
 582
 583 bool wxDocument::DoSaveDocument(const wxString& file)
 584 {
 585     wxString msgTitle;
 586     if (!wxTheApp->GetAppDisplayName().empty())
 587         msgTitle = wxTheApp->GetAppDisplayName();
 588     else
 589         msgTitle = wxString(_("File error"));
 590
 591 #if wxUSE_STD_IOSTREAM
 592     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 593     if (store.fail() || store.bad())
 594 #else
 595     wxFileOutputStream store(file);
 596     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 597 #endif
 598     {
 599         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 600                            GetDocumentWindow());
 601         // Saving error
 602         return false;
 603     }
 604     if (!SaveObject(store))
 605     {
 606         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 607                            GetDocumentWindow());
 608         // Saving error
 609         return false;
 610     }
 611
 612     return true;
 613 }
 614
 615 bool wxDocument::DoOpenDocument(const wxString& file)
 616 {
 617 #if wxUSE_STD_IOSTREAM
 618     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 619     if (!store.fail() && !store.bad())
 620 #else
 621     wxFileInputStream store(file);
 622     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 623 #endif
 624     {
 625 #if wxUSE_STD_IOSTREAM
 626         LoadObject(store);
 627         if ( !!store || store.eof() )
 628 #else
 629         int res = LoadObject(store).GetLastError();
 630         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 631 #endif
 632             return true;
 633     }
 634
 635     wxLogError(_("Sorry, could not open this file."));
 636     return false;
 637 }
 638
 639
 640 // ----------------------------------------------------------------------------
 641 // Document view
 642 // ----------------------------------------------------------------------------
 643
 644 wxView::wxView()
 645 {
 646     m_viewDocument = NULL;
 647
 648     m_viewFrame = NULL;
 649 }
 650
 651 wxView::~wxView()
 652 {
 653     GetDocumentManager()->ActivateView(this, false);
 654     m_viewDocument->RemoveView(this);
 655 }
 656
 657 // Extend event processing to search the document's event table
 658 bool wxView::ProcessEvent(wxEvent& event)
 659 {
 660     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 661         return wxEvtHandler::ProcessEvent(event);
 662
 663     return true;
 664 }
 665
 666 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 667 {
 668 }
 669
 670 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 671 {
 672     OnDraw(dc);
 673 }
 674
 675 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 676 {
 677 }
 678
 679 void wxView::OnChangeFilename()
 680 {
 681     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 682     // generic MDI implementation so use SetLabel rather than SetTitle.
 683     // It should cause SetTitle() for top level windows.
 684     wxWindow *win = GetFrame();
 685     if (!win) return;
 686
 687     wxDocument *doc = GetDocument();
 688     if (!doc) return;
 689
 690     win->SetLabel(doc->GetUserReadableName());
 691 }
 692
 693 void wxView::SetDocument(wxDocument *doc)
 694 {
 695     m_viewDocument = doc;
 696     if (doc)
 697         doc->AddView(this);
 698 }
 699
 700 bool wxView::Close(bool deleteWindow)
 701 {
 702     return OnClose(deleteWindow);
 703 }
 704
 705 void wxView::Activate(bool activate)
 706 {
 707     if (GetDocument() && GetDocumentManager())
 708     {
 709         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 710         GetDocumentManager()->ActivateView(this, activate);
 711     }
 712 }
 713
 714 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 715 {
 716     return GetDocument() ? GetDocument()->Close() : true;
 717 }
 718
 719 #if wxUSE_PRINTING_ARCHITECTURE
 720 wxPrintout *wxView::OnCreatePrintout()
 721 {
 722     return new wxDocPrintout(this);
 723 }
 724 #endif // wxUSE_PRINTING_ARCHITECTURE
 725
 726 // ----------------------------------------------------------------------------
 727 // wxDocTemplate
 728 // ----------------------------------------------------------------------------
 729
 730 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 731                              const wxString& descr,
 732                              const wxString& filter,
 733                              const wxString& dir,
 734                              const wxString& ext,
 735                              const wxString& docTypeName,
 736                              const wxString& viewTypeName,
 737                              wxClassInfo *docClassInfo,
 738                              wxClassInfo *viewClassInfo,
 739                              long flags)
 740 {
 741     m_documentManager = manager;
 742     m_description = descr;
 743     m_directory = dir;
 744     m_defaultExt = ext;
 745     m_fileFilter = filter;
 746     m_flags = flags;
 747     m_docTypeName = docTypeName;
 748     m_viewTypeName = viewTypeName;
 749     m_documentManager->AssociateTemplate(this);
 750
 751     m_docClassInfo = docClassInfo;
 752     m_viewClassInfo = viewClassInfo;
 753 }
 754
 755 wxDocTemplate::~wxDocTemplate()
 756 {
 757     m_documentManager->DisassociateTemplate(this);
 758 }
 759
 760 // Tries to dynamically construct an object of the right class.
 761 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 762 {
 763     wxDocument * const doc = DoCreateDocument();
 764
 765     // VZ: this code doesn't delete doc if InitDocument() (i.e. doc->OnCreate())
 766     //     fails, is this intentional?
 767
 768     return doc && InitDocument(doc, path, flags) ? doc : NULL;
 769 }
 770
 771 bool
 772 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 773 {
 774     doc->SetFilename(path);
 775     doc->SetDocumentTemplate(this);
 776     GetDocumentManager()->AddDocument(doc);
 777     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 778
 779     if (doc->OnCreate(path, flags))
 780         return true;
 781     else
 782     {
 783         if (GetDocumentManager()->GetDocuments().Member(doc))
 784             doc->DeleteAllViews();
 785         return false;
 786     }
 787 }
 788
 789 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 790 {
 791     wxView *view = DoCreateView();
 792     if ( view == NULL )
 793         return NULL;
 794
 795     view->SetDocument(doc);
 796     if (view->OnCreate(doc, flags))
 797     {
 798         return view;
 799     }
 800     else
 801     {
 802         delete view;
 803         return NULL;
 804     }
 805 }
 806
 807 // The default (very primitive) format detection: check is the extension is
 808 // that of the template
 809 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 810 {
 811     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 812     wxString anything = wxT ("*");
 813     while (parser.HasMoreTokens())
 814     {
 815         wxString filter = parser.GetNextToken();
 816         wxString filterExt = FindExtension (filter);
 817         if ( filter.IsSameAs (anything)    ||
 818              filterExt.IsSameAs (anything) ||
 819              filterExt.IsSameAs (FindExtension (path)) )
 820             return true;
 821     }
 822     return GetDefaultExtension().IsSameAs(FindExtension(path));
 823 }
 824
 825 wxDocument *wxDocTemplate::DoCreateDocument()
 826 {
 827     if (!m_docClassInfo)
 828         return NULL;
 829
 830     return (wxDocument *)m_docClassInfo->CreateObject();
 831 }
 832
 833 wxView *wxDocTemplate::DoCreateView()
 834 {
 835     if (!m_viewClassInfo)
 836         return NULL;
 837
 838     return (wxView *)m_viewClassInfo->CreateObject();
 839 }
 840
 841 // ----------------------------------------------------------------------------
 842 // wxDocManager
 843 // ----------------------------------------------------------------------------
 844
 845 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 846     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 847     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 848     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 849     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 850     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 851     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 852     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 853     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 854     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 855
 856     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 857     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
 858     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
 859     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
 860     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 861     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 862     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
 863     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 864     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 865
 866 #if wxUSE_PRINTING_ARCHITECTURE
 867     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 868     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 869
 870     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
 871     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
 872 #endif
 873 END_EVENT_TABLE()
 874
 875 wxDocManager* wxDocManager::sm_docManager = NULL;
 876
 877 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 878 {
 879     wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
 880
 881     sm_docManager = this;
 882
 883     m_defaultDocumentNameCounter = 1;
 884     m_currentView = NULL;
 885     m_maxDocsOpen = INT_MAX;
 886     m_fileHistory = NULL;
 887     if ( initialize )
 888         Initialize();
 889 }
 890
 891 wxDocManager::~wxDocManager()
 892 {
 893     Clear();
 894     delete m_fileHistory;
 895     sm_docManager = NULL;
 896 }
 897
 898 // closes the specified document
 899 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 900 {
 901     if (doc->Close() || force)
 902     {
 903         // Implicitly deletes the document when
 904         // the last view is deleted
 905         doc->DeleteAllViews();
 906
 907         // Check we're really deleted
 908         if (m_docs.Member(doc))
 909             delete doc;
 910
 911         return true;
 912     }
 913     return false;
 914 }
 915
 916 bool wxDocManager::CloseDocuments(bool force)
 917 {
 918     wxList::compatibility_iterator node = m_docs.GetFirst();
 919     while (node)
 920     {
 921         wxDocument *doc = (wxDocument *)node->GetData();
 922         wxList::compatibility_iterator next = node->GetNext();
 923
 924         if (!CloseDocument(doc, force))
 925             return false;
 926
 927         // This assumes that documents are not connected in
 928         // any way, i.e. deleting one document does NOT
 929         // delete another.
 930         node = next;
 931     }
 932     return true;
 933 }
 934
 935 bool wxDocManager::Clear(bool force)
 936 {
 937     if (!CloseDocuments(force))
 938         return false;
 939
 940     m_currentView = NULL;
 941
 942     wxList::compatibility_iterator node = m_templates.GetFirst();
 943     while (node)
 944     {
 945         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 946         wxList::compatibility_iterator next = node->GetNext();
 947         delete templ;
 948         node = next;
 949     }
 950     return true;
 951 }
 952
 953 bool wxDocManager::Initialize()
 954 {
 955     m_fileHistory = OnCreateFileHistory();
 956     return true;
 957 }
 958
 959 wxFileHistory *wxDocManager::OnCreateFileHistory()
 960 {
 961     return new wxFileHistory;
 962 }
 963
 964 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 965 {
 966     wxDocument *doc = GetCurrentDocument();
 967     if (!doc)
 968         return;
 969     if (doc->Close())
 970     {
 971         doc->DeleteAllViews();
 972         if (m_docs.Member(doc))
 973             delete doc;
 974     }
 975 }
 976
 977 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 978 {
 979     CloseDocuments(false);
 980 }
 981
 982 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 983 {
 984     CreateDocument( wxEmptyString, wxDOC_NEW );
 985 }
 986
 987 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 988 {
 989     if ( !CreateDocument( wxEmptyString, 0) )
 990     {
 991         OnOpenFileFailure();
 992     }
 993 }
 994
 995 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 996 {
 997     wxDocument *doc = GetCurrentDocument();
 998     if (!doc)
 999         return;
1000     doc->Revert();
1001 }
1002
1003 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1004 {
1005     wxDocument *doc = GetCurrentDocument();
1006     if (!doc)
1007         return;
1008     doc->Save();
1009 }
1010
1011 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1012 {
1013     wxDocument *doc = GetCurrentDocument();
1014     if (!doc)
1015         return;
1016     doc->SaveAs();
1017 }
1018
1019 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1020 {
1021 #if wxUSE_PRINTING_ARCHITECTURE
1022     wxView *view = GetCurrentView();
1023     if (!view)
1024         return;
1025
1026     wxPrintout *printout = view->OnCreatePrintout();
1027     if (printout)
1028     {
1029         wxPrinter printer;
1030         printer.Print(view->GetFrame(), printout, true);
1031
1032         delete printout;
1033     }
1034 #endif // wxUSE_PRINTING_ARCHITECTURE
1035 }
1036
1037 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1038 {
1039 #if wxUSE_PRINTING_ARCHITECTURE
1040     wxView *view = GetCurrentView();
1041     if (!view)
1042         return;
1043
1044     wxPrintout *printout = view->OnCreatePrintout();
1045     if (printout)
1046     {
1047         // Pass two printout objects: for preview, and possible printing.
1048         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1049         if ( !preview->Ok() )
1050         {
1051             delete preview;
1052             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1053             return;
1054         }
1055
1056         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1057                 wxPoint(100, 100), wxSize(600, 650));
1058         frame->Centre(wxBOTH);
1059         frame->Initialize();
1060         frame->Show(true);
1061     }
1062 #endif // wxUSE_PRINTING_ARCHITECTURE
1063 }
1064
1065 void wxDocManager::OnUndo(wxCommandEvent& event)
1066 {
1067     wxDocument *doc = GetCurrentDocument();
1068     if (!doc)
1069         return;
1070     if (doc->GetCommandProcessor())
1071         doc->GetCommandProcessor()->Undo();
1072     else
1073         event.Skip();
1074 }
1075
1076 void wxDocManager::OnRedo(wxCommandEvent& event)
1077 {
1078     wxDocument *doc = GetCurrentDocument();
1079     if (!doc)
1080         return;
1081     if (doc->GetCommandProcessor())
1082         doc->GetCommandProcessor()->Redo();
1083     else
1084         event.Skip();
1085 }
1086
1087 // Handlers for UI update commands
1088
1089 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1090 {
1091     event.Enable( true );
1092 }
1093
1094 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1095 {
1096     event.Enable( GetCurrentDocument() != NULL );
1097 }
1098
1099 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1100 {
1101     event.Enable( true );
1102 }
1103
1104 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1105 {
1106     wxDocument *doc = GetCurrentDocument();
1107     event.Enable( doc && doc->IsModified() );
1108 }
1109
1110 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1111 {
1112     wxDocument *doc = GetCurrentDocument();
1113     if (!doc)
1114         event.Enable(false);
1115     else if (!doc->GetCommandProcessor())
1116         event.Skip();
1117     else
1118     {
1119         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1120         doc->GetCommandProcessor()->SetMenuStrings();
1121     }
1122 }
1123
1124 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1125 {
1126     wxDocument *doc = GetCurrentDocument();
1127     if (!doc)
1128         event.Enable(false);
1129     else if (!doc->GetCommandProcessor())
1130         event.Skip();
1131     else
1132     {
1133         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1134         doc->GetCommandProcessor()->SetMenuStrings();
1135     }
1136 }
1137
1138 wxView *wxDocManager::GetCurrentView() const
1139 {
1140     if (m_currentView)
1141         return m_currentView;
1142     if (m_docs.GetCount() == 1)
1143     {
1144         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1145         return doc->GetFirstView();
1146     }
1147     return NULL;
1148 }
1149
1150 // Extend event processing to search the view's event table
1151 bool wxDocManager::ProcessEvent(wxEvent& event)
1152 {
1153     wxView * const view = GetCurrentView();
1154     if ( view && view->ProcessEvent(event) )
1155         return true;
1156
1157     return wxEvtHandler::ProcessEvent(event);
1158 }
1159
1160 namespace
1161 {
1162
1163 // helper function: return only the visible templates
1164 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1165 {
1166     // select only the visible templates
1167     const size_t totalNumTemplates = allTemplates.GetCount();
1168     wxDocTemplates templates;
1169     if ( totalNumTemplates )
1170     {
1171         templates.reserve(totalNumTemplates);
1172
1173         for ( wxList::const_iterator i = allTemplates.begin(),
1174                                    end = allTemplates.end();
1175               i != end;
1176               ++i )
1177         {
1178             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1179             if ( temp->IsVisible() )
1180                 templates.push_back(temp);
1181         }
1182     }
1183
1184     return templates;
1185 }
1186
1187 } // anonymous namespace
1188
1189 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1190 {
1191     // this ought to be const but SelectDocumentType/Path() are not
1192     // const-correct and can't be changed as, being virtual, this risks
1193     // breaking user code overriding them
1194     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1195     const size_t numTemplates = templates.size();
1196     if ( !numTemplates )
1197     {
1198         // no templates can be used, can't create document
1199         return NULL;
1200     }
1201
1202
1203     // normally user should select the template to use but wxDOC_SILENT flag we
1204     // choose one ourselves
1205     wxString path = pathOrig;   // may be modified below
1206     wxDocTemplate *temp;
1207     if ( flags & wxDOC_SILENT )
1208     {
1209         wxASSERT_MSG( !path.empty(),
1210                       "using empty path with wxDOC_SILENT doesn't make sense" );
1211
1212         temp = FindTemplateForPath(path);
1213         if ( !temp )
1214         {
1215             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1216                          path);
1217         }
1218     }
1219     else // not silent, ask the user
1220     {
1221         // for the new file we need just the template, for an existing one we
1222         // need the template and the path, unless it's already specified
1223         if ( (flags & wxDOC_NEW) || !path.empty() )
1224             temp = SelectDocumentType(&templates[0], numTemplates);
1225         else
1226             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1227     }
1228
1229     if ( !temp )
1230         return NULL;
1231
1232     // check whether the document with this path is already opened
1233     if ( !path.empty() )
1234     {
1235         const wxFileName fn(path);
1236         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1237         {
1238             wxDocument * const doc = (wxDocument*)*i;
1239
1240             if ( fn == doc->GetFilename() )
1241             {
1242                 // file already open, just activate it and return
1243                 if ( doc->GetFirstView() )
1244                 {
1245                     ActivateView(doc->GetFirstView());
1246                     if ( doc->GetDocumentWindow() )
1247                         doc->GetDocumentWindow()->SetFocus();
1248                     return doc;
1249                 }
1250             }
1251         }
1252     }
1253
1254
1255     // no, we need to create a new document
1256
1257
1258     // if we've reached the max number of docs, close the first one.
1259     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1260     {
1261         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1262         {
1263             // can't open the new document if closing the old one failed
1264             return NULL;
1265         }
1266     }
1267
1268
1269     // do create and initialize the new document finally
1270     wxDocument * const docNew = temp->CreateDocument(path, flags);
1271     if ( !docNew )
1272         return NULL;
1273
1274     docNew->SetDocumentName(temp->GetDocumentName());
1275     docNew->SetDocumentTemplate(temp);
1276
1277     // call the appropriate function depending on whether we're creating a new
1278     // file or opening an existing one
1279     if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1280                              : docNew->OnOpenDocument(path)) )
1281     {
1282          // Document is implicitly deleted by DeleteAllViews
1283          docNew->DeleteAllViews();
1284          return NULL;
1285     }
1286
1287     // add the successfully opened file to MRU, but only if we're going to be
1288     // able to reopen it successfully later which requires the template for
1289     // this document to be retrievable from the file extension
1290     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1291         AddFileToHistory(path);
1292
1293     return docNew;
1294 }
1295
1296 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1297 {
1298     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1299     const size_t numTemplates = templates.size();
1300
1301     if ( numTemplates == 0 )
1302         return NULL;
1303
1304     wxDocTemplate * const
1305     temp = numTemplates == 1 ? templates[0]
1306                              : SelectViewType(&templates[0], numTemplates);
1307
1308     if ( !temp )
1309         return NULL;
1310
1311     wxView *view = temp->CreateView(doc, flags);
1312     if ( view )
1313         view->SetViewName(temp->GetViewName());
1314     return view;
1315 }
1316
1317 // Not yet implemented
1318 void
1319 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1320 {
1321 }
1322
1323 // Not yet implemented
1324 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1325 {
1326     return false;
1327 }
1328
1329 wxDocument *wxDocManager::GetCurrentDocument() const
1330 {
1331     wxView *view = GetCurrentView();
1332     if (view)
1333         return view->GetDocument();
1334     else
1335         return NULL;
1336 }
1337
1338 // Make a default name for a new document
1339 #if WXWIN_COMPATIBILITY_2_8
1340 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1341 {
1342     // we consider that this function can only be overridden by the user code,
1343     // not called by it as it only makes sense to call it internally, so we
1344     // don't bother to return anything from here
1345     return false;
1346 }
1347 #endif // WXWIN_COMPATIBILITY_2_8
1348
1349 wxString wxDocManager::MakeNewDocumentName()
1350 {
1351     wxString name;
1352
1353 #if WXWIN_COMPATIBILITY_2_8
1354     if ( !MakeDefaultName(name) )
1355 #endif // WXWIN_COMPATIBILITY_2_8
1356     {
1357         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1358         m_defaultDocumentNameCounter++;
1359     }
1360
1361     return name;
1362 }
1363
1364 // Make a frame title (override this to do something different)
1365 // If docName is empty, a document is not currently active.
1366 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1367 {
1368     wxString appName = wxTheApp->GetAppDisplayName();
1369     wxString title;
1370     if (!doc)
1371         title = appName;
1372     else
1373     {
1374         wxString docName = doc->GetUserReadableName();
1375         title = docName + wxString(_(" - ")) + appName;
1376     }
1377     return title;
1378 }
1379
1380
1381 // Not yet implemented
1382 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1383 {
1384     return NULL;
1385 }
1386
1387 // File history management
1388 void wxDocManager::AddFileToHistory(const wxString& file)
1389 {
1390     if (m_fileHistory)
1391         m_fileHistory->AddFileToHistory(file);
1392 }
1393
1394 void wxDocManager::RemoveFileFromHistory(size_t i)
1395 {
1396     if (m_fileHistory)
1397         m_fileHistory->RemoveFileFromHistory(i);
1398 }
1399
1400 wxString wxDocManager::GetHistoryFile(size_t i) const
1401 {
1402     wxString histFile;
1403
1404     if (m_fileHistory)
1405         histFile = m_fileHistory->GetHistoryFile(i);
1406
1407     return histFile;
1408 }
1409
1410 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1411 {
1412     if (m_fileHistory)
1413         m_fileHistory->UseMenu(menu);
1414 }
1415
1416 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1417 {
1418     if (m_fileHistory)
1419         m_fileHistory->RemoveMenu(menu);
1420 }
1421
1422 #if wxUSE_CONFIG
1423 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1424 {
1425     if (m_fileHistory)
1426         m_fileHistory->Load(config);
1427 }
1428
1429 void wxDocManager::FileHistorySave(wxConfigBase& config)
1430 {
1431     if (m_fileHistory)
1432         m_fileHistory->Save(config);
1433 }
1434 #endif
1435
1436 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1437 {
1438     if (m_fileHistory)
1439         m_fileHistory->AddFilesToMenu(menu);
1440 }
1441
1442 void wxDocManager::FileHistoryAddFilesToMenu()
1443 {
1444     if (m_fileHistory)
1445         m_fileHistory->AddFilesToMenu();
1446 }
1447
1448 size_t wxDocManager::GetHistoryFilesCount() const
1449 {
1450     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1451 }
1452
1453
1454 // Find out the document template via matching in the document file format
1455 // against that of the template
1456 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1457 {
1458     wxDocTemplate *theTemplate = NULL;
1459
1460     // Find the template which this extension corresponds to
1461     for (size_t i = 0; i < m_templates.GetCount(); i++)
1462     {
1463         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1464         if ( temp->FileMatchesTemplate(path) )
1465         {
1466             theTemplate = temp;
1467             break;
1468         }
1469     }
1470     return theTemplate;
1471 }
1472
1473 // Prompts user to open a file, using file specs in templates.
1474 // Must extend the file selector dialog or implement own; OR
1475 // match the extension to the template extension.
1476
1477 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1478                                                 int noTemplates,
1479                                                 wxString& path,
1480                                                 long WXUNUSED(flags),
1481                                                 bool WXUNUSED(save))
1482 {
1483     // We can only have multiple filters in Windows and GTK
1484 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1485     wxString descrBuf;
1486
1487     int i;
1488     for (i = 0; i < noTemplates; i++)
1489     {
1490         if (templates[i]->IsVisible())
1491         {
1492             // add a '|' to separate this filter from the previous one
1493             if ( !descrBuf.empty() )
1494                 descrBuf << wxT('|');
1495
1496             descrBuf << templates[i]->GetDescription()
1497                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1498                 << templates[i]->GetFileFilter();
1499         }
1500     }
1501 #else
1502     wxString descrBuf = wxT("*.*");
1503     wxUnusedVar(noTemplates);
1504 #endif
1505
1506     int FilterIndex = -1;
1507
1508     wxWindow* parent = wxFindSuitableParent();
1509
1510     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1511                                         m_lastDirectory,
1512                                         wxEmptyString,
1513                                         &FilterIndex,
1514                                         descrBuf,
1515                                         0,
1516                                         parent);
1517
1518     wxDocTemplate *theTemplate = NULL;
1519     if (!pathTmp.empty())
1520     {
1521         if (!wxFileExists(pathTmp))
1522         {
1523             wxString msgTitle;
1524             if (!wxTheApp->GetAppDisplayName().empty())
1525                 msgTitle = wxTheApp->GetAppDisplayName();
1526             else
1527                 msgTitle = wxString(_("File error"));
1528
1529             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1530                 parent);
1531
1532             path = wxEmptyString;
1533             return NULL;
1534         }
1535         m_lastDirectory = wxPathOnly(pathTmp);
1536
1537         path = pathTmp;
1538
1539         // first choose the template using the extension, if this fails (i.e.
1540         // wxFileSelectorEx() didn't fill it), then use the path
1541         if ( FilterIndex != -1 )
1542             theTemplate = templates[FilterIndex];
1543         if ( !theTemplate )
1544             theTemplate = FindTemplateForPath(path);
1545         if ( !theTemplate )
1546         {
1547             // Since we do not add files with non-default extensions to the FileHistory this
1548             // can only happen if the application changes the allowed templates in runtime.
1549             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1550                                 _("Open File"),
1551                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1552         }
1553     }
1554     else
1555     {
1556         path = wxEmptyString;
1557     }
1558
1559     return theTemplate;
1560 }
1561
1562 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1563                                                 int noTemplates, bool sort)
1564 {
1565     wxArrayString strings;
1566     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1567     int i;
1568     int n = 0;
1569
1570     for (i = 0; i < noTemplates; i++)
1571     {
1572         if (templates[i]->IsVisible())
1573         {
1574             int j;
1575             bool want = true;
1576             for (j = 0; j < n; j++)
1577             {
1578                 //filter out NOT unique documents + view combinations
1579                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1580                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1581                    )
1582                     want = false;
1583             }
1584
1585             if ( want )
1586             {
1587                 strings.Add(templates[i]->m_description);
1588
1589                 data[n] = templates[i];
1590                 n ++;
1591             }
1592         }
1593     }  // for
1594
1595     if (sort)
1596     {
1597         strings.Sort(); // ascending sort
1598         // Yes, this will be slow, but template lists
1599         // are typically short.
1600         int j;
1601         n = strings.Count();
1602         for (i = 0; i < n; i++)
1603         {
1604             for (j = 0; j < noTemplates; j++)
1605             {
1606                 if (strings[i] == templates[j]->m_description)
1607                     data[i] = templates[j];
1608             }
1609         }
1610     }
1611
1612     wxDocTemplate *theTemplate;
1613
1614     switch ( n )
1615     {
1616         case 0:
1617             // no visible templates, hence nothing to choose from
1618             theTemplate = NULL;
1619             break;
1620
1621         case 1:
1622             // don't propose the user to choose if he has no choice
1623             theTemplate = data[0];
1624             break;
1625
1626         default:
1627             // propose the user to choose one of several
1628             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1629                           (
1630                             _("Select a document template"),
1631                             _("Templates"),
1632                             strings,
1633                             (void **)data,
1634                             wxFindSuitableParent()
1635                           );
1636     }
1637
1638     delete[] data;
1639
1640     return theTemplate;
1641 }
1642
1643 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1644                                             int noTemplates, bool sort)
1645 {
1646     wxArrayString strings;
1647     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1648     int i;
1649     int n = 0;
1650
1651     for (i = 0; i < noTemplates; i++)
1652     {
1653         wxDocTemplate *templ = templates[i];
1654         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1655         {
1656             int j;
1657             bool want = true;
1658             for (j = 0; j < n; j++)
1659             {
1660                 //filter out NOT unique views
1661                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1662                     want = false;
1663             }
1664
1665             if ( want )
1666             {
1667                 strings.Add(templ->m_viewTypeName);
1668                 data[n] = templ;
1669                 n ++;
1670             }
1671         }
1672     }
1673
1674     if (sort)
1675     {
1676         strings.Sort(); // ascending sort
1677         // Yes, this will be slow, but template lists
1678         // are typically short.
1679         int j;
1680         n = strings.Count();
1681         for (i = 0; i < n; i++)
1682         {
1683             for (j = 0; j < noTemplates; j++)
1684             {
1685                 if (strings[i] == templates[j]->m_viewTypeName)
1686                     data[i] = templates[j];
1687             }
1688         }
1689     }
1690
1691     wxDocTemplate *theTemplate;
1692
1693     // the same logic as above
1694     switch ( n )
1695     {
1696         case 0:
1697             theTemplate = NULL;
1698             break;
1699
1700         case 1:
1701             theTemplate = data[0];
1702             break;
1703
1704         default:
1705             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1706                           (
1707                             _("Select a document view"),
1708                             _("Views"),
1709                             strings,
1710                             (void **)data,
1711                             wxFindSuitableParent()
1712                           );
1713
1714     }
1715
1716     delete[] data;
1717     return theTemplate;
1718 }
1719
1720 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1721 {
1722     if (!m_templates.Member(temp))
1723         m_templates.Append(temp);
1724 }
1725
1726 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1727 {
1728     m_templates.DeleteObject(temp);
1729 }
1730
1731 // Add and remove a document from the manager's list
1732 void wxDocManager::AddDocument(wxDocument *doc)
1733 {
1734     if (!m_docs.Member(doc))
1735         m_docs.Append(doc);
1736 }
1737
1738 void wxDocManager::RemoveDocument(wxDocument *doc)
1739 {
1740     m_docs.DeleteObject(doc);
1741 }
1742
1743 // Views or windows should inform the document manager
1744 // when a view is going in or out of focus
1745 void wxDocManager::ActivateView(wxView *view, bool activate)
1746 {
1747     if ( activate )
1748     {
1749         m_currentView = view;
1750     }
1751     else // deactivate
1752     {
1753         if ( m_currentView == view )
1754         {
1755             // don't keep stale pointer
1756             m_currentView = NULL;
1757         }
1758     }
1759 }
1760
1761 // ----------------------------------------------------------------------------
1762 // Default document child frame
1763 // ----------------------------------------------------------------------------
1764
1765 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1766     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1767     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1768 END_EVENT_TABLE()
1769
1770 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1771                                  wxView *view,
1772                                  wxFrame *frame,
1773                                  wxWindowID id,
1774                                  const wxString& title,
1775                                  const wxPoint& pos,
1776                                  const wxSize& size,
1777                                  long style,
1778                                  const wxString& name)
1779                : wxFrame(frame, id, title, pos, size, style, name)
1780 {
1781     m_childDocument = doc;
1782     m_childView = view;
1783     if (view)
1784         view->SetFrame(this);
1785 }
1786
1787 // Extend event processing to search the view's event table
1788 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1789 {
1790     if (m_childView)
1791         m_childView->Activate(true);
1792
1793     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1794     {
1795         // Only hand up to the parent if it's a menu command
1796         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1797             return wxEvtHandler::ProcessEvent(event);
1798         else
1799             return true;
1800     }
1801     else
1802         return true;
1803 }
1804
1805 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1806 {
1807     wxFrame::OnActivate(event);
1808
1809     if (m_childView)
1810         m_childView->Activate(event.GetActive());
1811 }
1812
1813 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1814 {
1815     if (m_childView)
1816     {
1817         bool ans = event.CanVeto()
1818                     ? m_childView->Close(false) // false means don't delete associated window
1819                     : true; // Must delete.
1820
1821         if (ans)
1822         {
1823             m_childView->Activate(false);
1824             delete m_childView;
1825             m_childView = NULL;
1826             m_childDocument = NULL;
1827
1828             this->Destroy();
1829         }
1830         else
1831             event.Veto();
1832     }
1833     else
1834         event.Veto();
1835 }
1836
1837 // ----------------------------------------------------------------------------
1838 // Default parent frame
1839 // ----------------------------------------------------------------------------
1840
1841 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1842     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1843     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1844     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1845 END_EVENT_TABLE()
1846
1847 wxDocParentFrame::wxDocParentFrame()
1848 {
1849     m_docManager = NULL;
1850 }
1851
1852 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1853                                    wxFrame *frame,
1854                                    wxWindowID id,
1855                                    const wxString& title,
1856                                    const wxPoint& pos,
1857                                    const wxSize& size,
1858                                    long style,
1859                                    const wxString& name)
1860                 : wxFrame(frame, id, title, pos, size, style, name)
1861 {
1862     m_docManager = manager;
1863 }
1864
1865 bool wxDocParentFrame::Create(wxDocManager *manager,
1866                               wxFrame *frame,
1867                               wxWindowID id,
1868                               const wxString& title,
1869                               const wxPoint& pos,
1870                               const wxSize& size,
1871                               long style,
1872                               const wxString& name)
1873 {
1874     m_docManager = manager;
1875     return base_type::Create(frame, id, title, pos, size, style, name);
1876 }
1877
1878 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1879 {
1880     Close();
1881 }
1882
1883 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1884 {
1885     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1886     wxString filename(m_docManager->GetHistoryFile(n));
1887     if ( filename.empty() )
1888         return;
1889
1890     wxString errMsg; // must contain exactly one "%s" if non-empty
1891     if ( wxFile::Exists(filename) )
1892     {
1893         // try to open it
1894         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1895             return;
1896
1897         errMsg = _("The file '%s' couldn't be opened.");
1898     }
1899     else // file doesn't exist
1900     {
1901         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1902     }
1903
1904
1905     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1906
1907     // remove the file which we can't open from the MRU list
1908     m_docManager->RemoveFileFromHistory(n);
1909
1910     // and tell the user about it
1911     wxLogError(errMsg + '\n' +
1912                _("It has been removed from the most recently used files list."),
1913                filename);
1914 }
1915
1916 // Extend event processing to search the view's event table
1917 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1918 {
1919     // Try the document manager, then do default processing
1920     if (!m_docManager || !m_docManager->ProcessEvent(event))
1921         return wxEvtHandler::ProcessEvent(event);
1922     else
1923         return true;
1924 }
1925
1926 // Define the behaviour for the frame closing
1927 // - must delete all frames except for the main one.
1928 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1929 {
1930     if (m_docManager->Clear(!event.CanVeto()))
1931     {
1932         this->Destroy();
1933     }
1934     else
1935         event.Veto();
1936 }
1937
1938 #if wxUSE_PRINTING_ARCHITECTURE
1939
1940 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1941              : wxPrintout(title)
1942 {
1943     m_printoutView = view;
1944 }
1945
1946 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1947 {
1948     wxDC *dc = GetDC();
1949
1950     // Get the logical pixels per inch of screen and printer
1951     int ppiScreenX, ppiScreenY;
1952     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1953     wxUnusedVar(ppiScreenY);
1954     int ppiPrinterX, ppiPrinterY;
1955     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1956     wxUnusedVar(ppiPrinterY);
1957
1958     // This scales the DC so that the printout roughly represents the
1959     // the screen scaling. The text point size _should_ be the right size
1960     // but in fact is too small for some reason. This is a detail that will
1961     // need to be addressed at some point but can be fudged for the
1962     // moment.
1963     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1964
1965     // Now we have to check in case our real page size is reduced
1966     // (e.g. because we're drawing to a print preview memory DC)
1967     int pageWidth, pageHeight;
1968     int w, h;
1969     dc->GetSize(&w, &h);
1970     GetPageSizePixels(&pageWidth, &pageHeight);
1971     wxUnusedVar(pageHeight);
1972
1973     // If printer pageWidth == current DC width, then this doesn't
1974     // change. But w might be the preview bitmap width, so scale down.
1975     float overallScale = scale * (float)(w/(float)pageWidth);
1976     dc->SetUserScale(overallScale, overallScale);
1977
1978     if (m_printoutView)
1979     {
1980         m_printoutView->OnDraw(dc);
1981     }
1982     return true;
1983 }
1984
1985 bool wxDocPrintout::HasPage(int pageNum)
1986 {
1987     return (pageNum == 1);
1988 }
1989
1990 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1991 {
1992     if (!wxPrintout::OnBeginDocument(startPage, endPage))
1993         return false;
1994
1995     return true;
1996 }
1997
1998 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
1999 {
2000     *minPage = 1;
2001     *maxPage = 1;
2002     *selPageFrom = 1;
2003     *selPageTo = 1;
2004 }
2005
2006 #endif // wxUSE_PRINTING_ARCHITECTURE
2007
2008 // ----------------------------------------------------------------------------
2009 // File history (a.k.a. MRU, most recently used, files list)
2010 // ----------------------------------------------------------------------------
2011
2012 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2013 {
2014     m_fileMaxFiles = maxFiles;
2015     m_idBase = idBase;
2016 }
2017
2018 void wxFileHistory::AddFileToHistory(const wxString& file)
2019 {
2020     // check if we don't already have this file
2021     const wxFileName fnNew(file);
2022     size_t i,
2023            numFiles = m_fileHistory.size();
2024     for ( i = 0; i < numFiles; i++ )
2025     {
2026         if ( fnNew == m_fileHistory[i] )
2027         {
2028             // we do have it, move it to the top of the history
2029             RemoveFileFromHistory(i);
2030             numFiles--;
2031             break;
2032         }
2033     }
2034
2035     // if we already have a full history, delete the one at the end
2036     if ( numFiles == m_fileMaxFiles )
2037     {
2038         RemoveFileFromHistory(--numFiles);
2039     }
2040     else // add a new menu item to all file menus (will be updated below)
2041     {
2042         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2043               node;
2044               node = node->GetNext() )
2045         {
2046             wxMenu * const menu = (wxMenu *)node->GetData();
2047
2048             if ( !numFiles && menu->GetMenuItemCount() )
2049                 menu->AppendSeparator();
2050
2051             // label doesn't matter, it will be set below anyhow, but it can't
2052             // be empty (this is supposed to indicate a stock item)
2053             menu->Append(m_idBase + numFiles, " ");
2054         }
2055     }
2056
2057
2058     // insert the new file in the beginning of the file history
2059     m_fileHistory.insert(m_fileHistory.begin(), file);
2060     numFiles++;
2061
2062     // update the labels in all menus
2063     for ( i = 0; i < numFiles; i++ )
2064     {
2065         // if in same directory just show the filename; otherwise the full path
2066         const wxFileName fnOld(m_fileHistory[i]);
2067
2068         wxString pathInMenu;
2069         if ( fnOld.GetPath() == fnNew.GetPath() )
2070         {
2071             pathInMenu = fnOld.GetFullName();
2072         }
2073         else // file in different directory
2074         {
2075             // absolute path; could also set relative path
2076             pathInMenu = m_fileHistory[i];
2077         }
2078
2079         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2080               node;
2081               node = node->GetNext() )
2082         {
2083             wxMenu * const menu = (wxMenu *)node->GetData();
2084
2085             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2086         }
2087     }
2088 }
2089
2090 void wxFileHistory::RemoveFileFromHistory(size_t i)
2091 {
2092     size_t numFiles = m_fileHistory.size();
2093     wxCHECK_RET( i < numFiles,
2094                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2095
2096     // delete the element from the array
2097     m_fileHistory.RemoveAt(i);
2098     numFiles--;
2099
2100     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2101           node;
2102           node = node->GetNext() )
2103     {
2104         wxMenu * const menu = (wxMenu *) node->GetData();
2105
2106         // shift filenames up
2107         for ( size_t j = i; j < numFiles; j++ )
2108         {
2109             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2110         }
2111
2112         // delete the last menu item which is unused now
2113         const wxWindowID lastItemId = m_idBase + numFiles;
2114         if ( menu->FindItem(lastItemId) )
2115             menu->Delete(lastItemId);
2116
2117         // delete the last separator too if no more files are left
2118         if ( m_fileHistory.empty() )
2119         {
2120             const wxMenuItemList::compatibility_iterator
2121                 nodeLast = menu->GetMenuItems().GetLast();
2122             if ( nodeLast )
2123             {
2124                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2125                 if ( lastMenuItem->IsSeparator() )
2126                     menu->Delete(lastMenuItem);
2127             }
2128             //else: menu is empty somehow
2129         }
2130     }
2131 }
2132
2133 void wxFileHistory::UseMenu(wxMenu *menu)
2134 {
2135     if ( !m_fileMenus.Member(menu) )
2136         m_fileMenus.Append(menu);
2137 }
2138
2139 void wxFileHistory::RemoveMenu(wxMenu *menu)
2140 {
2141     m_fileMenus.DeleteObject(menu);
2142 }
2143
2144 #if wxUSE_CONFIG
2145 void wxFileHistory::Load(const wxConfigBase& config)
2146 {
2147     m_fileHistory.Clear();
2148
2149     wxString buf;
2150     buf.Printf(wxT("file%d"), 1);
2151
2152     wxString historyFile;
2153     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2154            config.Read(buf, &historyFile) && !historyFile.empty())
2155     {
2156         m_fileHistory.Add(historyFile);
2157
2158         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2159         historyFile = wxEmptyString;
2160     }
2161
2162     AddFilesToMenu();
2163 }
2164
2165 void wxFileHistory::Save(wxConfigBase& config)
2166 {
2167     size_t i;
2168     for (i = 0; i < m_fileMaxFiles; i++)
2169     {
2170         wxString buf;
2171         buf.Printf(wxT("file%d"), (int)i+1);
2172         if (i < m_fileHistory.GetCount())
2173             config.Write(buf, wxString(m_fileHistory[i]));
2174         else
2175             config.Write(buf, wxEmptyString);
2176     }
2177 }
2178 #endif // wxUSE_CONFIG
2179
2180 void wxFileHistory::AddFilesToMenu()
2181 {
2182     if ( m_fileHistory.empty() )
2183         return;
2184
2185     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2186           node;
2187           node = node->GetNext() )
2188     {
2189         AddFilesToMenu((wxMenu *) node->GetData());
2190     }
2191 }
2192
2193 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2194 {
2195     if ( m_fileHistory.empty() )
2196         return;
2197
2198     if ( menu->GetMenuItemCount() )
2199         menu->AppendSeparator();
2200
2201     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2202     {
2203         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2204     }
2205 }
2206
2207 // ----------------------------------------------------------------------------
2208 // Permits compatibility with existing file formats and functions that
2209 // manipulate files directly
2210 // ----------------------------------------------------------------------------
2211
2212 #if wxUSE_STD_IOSTREAM
2213
2214 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2215 {
2216     wxFFile file(filename, _T("rb"));
2217     if ( !file.IsOpened() )
2218         return false;
2219
2220     char buf[4096];
2221
2222     size_t nRead;
2223     do
2224     {
2225         nRead = file.Read(buf, WXSIZEOF(buf));
2226         if ( file.Error() )
2227             return false;
2228
2229         stream.write(buf, nRead);
2230         if ( !stream )
2231             return false;
2232     }
2233     while ( !file.Eof() );
2234
2235     return true;
2236 }
2237
2238 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2239 {
2240     wxFFile file(filename, _T("wb"));
2241     if ( !file.IsOpened() )
2242         return false;
2243
2244     char buf[4096];
2245     do
2246     {
2247         stream.read(buf, WXSIZEOF(buf));
2248         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2249         {
2250             if ( !file.Write(buf, stream.gcount()) )
2251                 return false;
2252         }
2253     }
2254     while ( !stream.eof() );
2255
2256     return true;
2257 }
2258
2259 #else // !wxUSE_STD_IOSTREAM
2260
2261 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2262 {
2263     wxFFile file(filename, _T("rb"));
2264     if ( !file.IsOpened() )
2265         return false;
2266
2267     char buf[4096];
2268
2269     size_t nRead;
2270     do
2271     {
2272         nRead = file.Read(buf, WXSIZEOF(buf));
2273         if ( file.Error() )
2274             return false;
2275
2276         stream.Write(buf, nRead);
2277         if ( !stream )
2278             return false;
2279     }
2280     while ( !file.Eof() );
2281
2282     return true;
2283 }
2284
2285 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2286 {
2287     wxFFile file(filename, _T("wb"));
2288     if ( !file.IsOpened() )
2289         return false;
2290
2291     char buf[4096];
2292     for ( ;; )
2293     {
2294         stream.Read(buf, WXSIZEOF(buf));
2295
2296         const size_t nRead = stream.LastRead();
2297         if ( !nRead )
2298         {
2299             if ( stream.Eof() )
2300                 break;
2301
2302             return false;
2303         }
2304
2305         if ( !file.Write(buf, nRead) )
2306             return false;
2307     }
2308
2309     return true;
2310 }
2311
2312 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2313
2314 #endif // wxUSE_DOC_VIEW_ARCHITECTURE