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     wxScopedPtr<wxDocument> doc(DoCreateDocument());
 779
 780     return doc && InitDocument(doc.get(), path, flags) ? doc.release() : NULL;
 781 }
 782
 783 bool
 784 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 785 {
 786     doc->SetFilename(path);
 787     doc->SetDocumentTemplate(this);
 788     GetDocumentManager()->AddDocument(doc);
 789     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 790
 791     if (doc->OnCreate(path, flags))
 792         return true;
 793
 794     if (GetDocumentManager()->GetDocuments().Member(doc))
 795         doc->DeleteAllViews();
 796     return false;
 797 }
 798
 799 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 800 {
 801     wxScopedPtr<wxView> view(DoCreateView());
 802     if ( !view )
 803         return NULL;
 804
 805     view->SetDocument(doc);
 806     if ( !view->OnCreate(doc, flags) )
 807         return NULL;
 808
 809     return view.release();
 810 }
 811
 812 // The default (very primitive) format detection: check is the extension is
 813 // that of the template
 814 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 815 {
 816     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 817     wxString anything = wxT ("*");
 818     while (parser.HasMoreTokens())
 819     {
 820         wxString filter = parser.GetNextToken();
 821         wxString filterExt = FindExtension (filter);
 822         if ( filter.IsSameAs (anything)    ||
 823              filterExt.IsSameAs (anything) ||
 824              filterExt.IsSameAs (FindExtension (path)) )
 825             return true;
 826     }
 827     return GetDefaultExtension().IsSameAs(FindExtension(path));
 828 }
 829
 830 wxDocument *wxDocTemplate::DoCreateDocument()
 831 {
 832     if (!m_docClassInfo)
 833         return NULL;
 834
 835     return static_cast<wxDocument *>(m_docClassInfo->CreateObject());
 836 }
 837
 838 wxView *wxDocTemplate::DoCreateView()
 839 {
 840     if (!m_viewClassInfo)
 841         return NULL;
 842
 843     return static_cast<wxView *>(m_viewClassInfo->CreateObject());
 844 }
 845
 846 // ----------------------------------------------------------------------------
 847 // wxDocManager
 848 // ----------------------------------------------------------------------------
 849
 850 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 851     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 852     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 853     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 854     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 855     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 856     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 857     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 858     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 859     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 860
 861     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 862     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
 863     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
 864     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
 865     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 866     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 867     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
 868     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 869     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 870
 871 #if wxUSE_PRINTING_ARCHITECTURE
 872     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 873     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 874
 875     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
 876     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
 877 #endif
 878 END_EVENT_TABLE()
 879
 880 wxDocManager* wxDocManager::sm_docManager = NULL;
 881
 882 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 883 {
 884     wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
 885
 886     sm_docManager = this;
 887
 888     m_defaultDocumentNameCounter = 1;
 889     m_currentView = NULL;
 890     m_maxDocsOpen = INT_MAX;
 891     m_fileHistory = NULL;
 892     if ( initialize )
 893         Initialize();
 894 }
 895
 896 wxDocManager::~wxDocManager()
 897 {
 898     Clear();
 899     delete m_fileHistory;
 900     sm_docManager = NULL;
 901 }
 902
 903 // closes the specified document
 904 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 905 {
 906     if ( !doc->Close() && !force )
 907         return false;
 908
 909     // Implicitly deletes the document when
 910     // the last view is deleted
 911     doc->DeleteAllViews();
 912
 913     // Check we're really deleted
 914     if (m_docs.Member(doc))
 915         delete doc;
 916
 917     return true;
 918 }
 919
 920 bool wxDocManager::CloseDocuments(bool force)
 921 {
 922     wxList::compatibility_iterator node = m_docs.GetFirst();
 923     while (node)
 924     {
 925         wxDocument *doc = (wxDocument *)node->GetData();
 926         wxList::compatibility_iterator next = node->GetNext();
 927
 928         if (!CloseDocument(doc, force))
 929             return false;
 930
 931         // This assumes that documents are not connected in
 932         // any way, i.e. deleting one document does NOT
 933         // delete another.
 934         node = next;
 935     }
 936     return true;
 937 }
 938
 939 bool wxDocManager::Clear(bool force)
 940 {
 941     if (!CloseDocuments(force))
 942         return false;
 943
 944     m_currentView = NULL;
 945
 946     wxList::compatibility_iterator node = m_templates.GetFirst();
 947     while (node)
 948     {
 949         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 950         wxList::compatibility_iterator next = node->GetNext();
 951         delete templ;
 952         node = next;
 953     }
 954     return true;
 955 }
 956
 957 bool wxDocManager::Initialize()
 958 {
 959     m_fileHistory = OnCreateFileHistory();
 960     return true;
 961 }
 962
 963 wxString wxDocManager::GetLastDirectory() const
 964 {
 965     // use the system-dependent default location for the document files if
 966     // we're being opened for the first time
 967     if ( m_lastDirectory.empty() )
 968     {
 969         wxDocManager * const self = const_cast<wxDocManager *>(this);
 970         self->m_lastDirectory = wxStandardPaths::Get().GetAppDocumentsDir();
 971     }
 972
 973     return m_lastDirectory;
 974 }
 975
 976 wxFileHistory *wxDocManager::OnCreateFileHistory()
 977 {
 978     return new wxFileHistory;
 979 }
 980
 981 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 982 {
 983     wxDocument *doc = GetCurrentDocument();
 984     if (!doc)
 985         return;
 986     if (doc->Close())
 987     {
 988         doc->DeleteAllViews();
 989         if (m_docs.Member(doc))
 990             delete doc;
 991     }
 992 }
 993
 994 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 995 {
 996     CloseDocuments(false);
 997 }
 998
 999 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
1000 {
1001     CreateNewDocument();
1002 }
1003
1004 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
1005 {
1006     if ( !CreateDocument("") )
1007     {
1008         OnOpenFileFailure();
1009     }
1010 }
1011
1012 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
1013 {
1014     wxDocument *doc = GetCurrentDocument();
1015     if (!doc)
1016         return;
1017     doc->Revert();
1018 }
1019
1020 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1021 {
1022     wxDocument *doc = GetCurrentDocument();
1023     if (!doc)
1024         return;
1025     doc->Save();
1026 }
1027
1028 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1029 {
1030     wxDocument *doc = GetCurrentDocument();
1031     if (!doc)
1032         return;
1033     doc->SaveAs();
1034 }
1035
1036 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1037 {
1038 #if wxUSE_PRINTING_ARCHITECTURE
1039     wxView *view = GetActiveView();
1040     if (!view)
1041         return;
1042
1043     wxPrintout *printout = view->OnCreatePrintout();
1044     if (printout)
1045     {
1046         wxPrinter printer;
1047         printer.Print(view->GetFrame(), printout, true);
1048
1049         delete printout;
1050     }
1051 #endif // wxUSE_PRINTING_ARCHITECTURE
1052 }
1053
1054 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1055 {
1056 #if wxUSE_PRINTING_ARCHITECTURE
1057     wxView *view = GetActiveView();
1058     if (!view)
1059         return;
1060
1061     wxPrintout *printout = view->OnCreatePrintout();
1062     if (printout)
1063     {
1064         // Pass two printout objects: for preview, and possible printing.
1065         wxPrintPreviewBase *
1066             preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1067         if ( !preview->Ok() )
1068         {
1069             delete preview;
1070             wxLogError(_("Print preview creation failed."));
1071             return;
1072         }
1073
1074         wxPreviewFrame *
1075             frame = new wxPreviewFrame(preview, wxTheApp->GetTopWindow(),
1076                                        _("Print Preview"));
1077         frame->Centre(wxBOTH);
1078         frame->Initialize();
1079         frame->Show(true);
1080     }
1081 #endif // wxUSE_PRINTING_ARCHITECTURE
1082 }
1083
1084 void wxDocManager::OnUndo(wxCommandEvent& event)
1085 {
1086     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1087     if ( !cmdproc )
1088     {
1089         event.Skip();
1090         return;
1091     }
1092
1093     cmdproc->Undo();
1094 }
1095
1096 void wxDocManager::OnRedo(wxCommandEvent& event)
1097 {
1098     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1099     if ( !cmdproc )
1100     {
1101         event.Skip();
1102         return;
1103     }
1104
1105     cmdproc->Redo();
1106 }
1107
1108 // Handlers for UI update commands
1109
1110 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1111 {
1112     // CreateDocument() (which is called from OnFileOpen) may succeed
1113     // only when there is at least a template:
1114     event.Enable( GetTemplates().GetCount()>0 );
1115 }
1116
1117 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1118 {
1119     event.Enable( GetCurrentDocument() != NULL );
1120 }
1121
1122 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1123 {
1124     // CreateDocument() (which is called from OnFileNew) may succeed
1125     // only when there is at least a template:
1126     event.Enable( GetTemplates().GetCount()>0 );
1127 }
1128
1129 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1130 {
1131     wxDocument * const doc = GetCurrentDocument();
1132     event.Enable( doc && !doc->AlreadySaved() );
1133 }
1134
1135 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1136 {
1137     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1138     if ( !cmdproc )
1139     {
1140         event.Enable(false);
1141         return;
1142     }
1143
1144     event.Enable(cmdproc->CanUndo());
1145     cmdproc->SetMenuStrings();
1146 }
1147
1148 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1149 {
1150     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1151     if ( !cmdproc )
1152     {
1153         event.Enable(false);
1154         return;
1155     }
1156
1157     event.Enable(cmdproc->CanRedo());
1158     cmdproc->SetMenuStrings();
1159 }
1160
1161 wxView *wxDocManager::GetActiveView() const
1162 {
1163     wxView *view = GetCurrentView();
1164
1165     if ( !view && !m_docs.empty() )
1166     {
1167         // if we have exactly one document, consider its view to be the current
1168         // one
1169         //
1170         // VZ: I'm not exactly sure why is this needed but this is how this
1171         //     code used to behave before the bug #9518 was fixed and it seems
1172         //     safer to preserve the old logic
1173         wxList::compatibility_iterator node = m_docs.GetFirst();
1174         if ( !node->GetNext() )
1175         {
1176             wxDocument *doc = static_cast<wxDocument *>(node->GetData());
1177             view = doc->GetFirstView();
1178         }
1179         //else: we have more than one document
1180     }
1181
1182     return view;
1183 }
1184
1185 bool wxDocManager::TryBefore(wxEvent& event)
1186 {
1187     wxView * const view = GetActiveView();
1188     return view && view->ProcessEventHere(event);
1189 }
1190
1191 namespace
1192 {
1193
1194 // helper function: return only the visible templates
1195 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1196 {
1197     // select only the visible templates
1198     const size_t totalNumTemplates = allTemplates.GetCount();
1199     wxDocTemplates templates;
1200     if ( totalNumTemplates )
1201     {
1202         templates.reserve(totalNumTemplates);
1203
1204         for ( wxList::const_iterator i = allTemplates.begin(),
1205                                    end = allTemplates.end();
1206               i != end;
1207               ++i )
1208         {
1209             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1210             if ( temp->IsVisible() )
1211                 templates.push_back(temp);
1212         }
1213     }
1214
1215     return templates;
1216 }
1217
1218 } // anonymous namespace
1219
1220 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1221 {
1222     // this ought to be const but SelectDocumentType/Path() are not
1223     // const-correct and can't be changed as, being virtual, this risks
1224     // breaking user code overriding them
1225     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1226     const size_t numTemplates = templates.size();
1227     if ( !numTemplates )
1228     {
1229         // no templates can be used, can't create document
1230         return NULL;
1231     }
1232
1233
1234     // normally user should select the template to use but wxDOC_SILENT flag we
1235     // choose one ourselves
1236     wxString path = pathOrig;   // may be modified below
1237     wxDocTemplate *temp;
1238     if ( flags & wxDOC_SILENT )
1239     {
1240         wxASSERT_MSG( !path.empty(),
1241                       "using empty path with wxDOC_SILENT doesn't make sense" );
1242
1243         temp = FindTemplateForPath(path);
1244         if ( !temp )
1245         {
1246             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1247                          path);
1248         }
1249     }
1250     else // not silent, ask the user
1251     {
1252         // for the new file we need just the template, for an existing one we
1253         // need the template and the path, unless it's already specified
1254         if ( (flags & wxDOC_NEW) || !path.empty() )
1255             temp = SelectDocumentType(&templates[0], numTemplates);
1256         else
1257             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1258     }
1259
1260     if ( !temp )
1261         return NULL;
1262
1263     // check whether the document with this path is already opened
1264     if ( !path.empty() )
1265     {
1266         const wxFileName fn(path);
1267         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1268         {
1269             wxDocument * const doc = (wxDocument*)*i;
1270
1271             if ( fn == doc->GetFilename() )
1272             {
1273                 // file already open, just activate it and return
1274                 if ( doc->GetFirstView() )
1275                 {
1276                     ActivateView(doc->GetFirstView());
1277                     if ( doc->GetDocumentWindow() )
1278                         doc->GetDocumentWindow()->SetFocus();
1279                     return doc;
1280                 }
1281             }
1282         }
1283     }
1284
1285
1286     // no, we need to create a new document
1287
1288
1289     // if we've reached the max number of docs, close the first one.
1290     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1291     {
1292         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1293         {
1294             // can't open the new document if closing the old one failed
1295             return NULL;
1296         }
1297     }
1298
1299
1300     // do create and initialize the new document finally
1301     wxDocument * const docNew = temp->CreateDocument(path, flags);
1302     if ( !docNew )
1303         return NULL;
1304
1305     docNew->SetDocumentName(temp->GetDocumentName());
1306     docNew->SetDocumentTemplate(temp);
1307
1308     wxTRY
1309     {
1310         // call the appropriate function depending on whether we're creating a
1311         // new file or opening an existing one
1312         if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1313                                  : docNew->OnOpenDocument(path)) )
1314         {
1315             docNew->DeleteAllViews();
1316             return NULL;
1317         }
1318     }
1319     wxCATCH_ALL( docNew->DeleteAllViews(); throw; )
1320
1321     // add the successfully opened file to MRU, but only if we're going to be
1322     // able to reopen it successfully later which requires the template for
1323     // this document to be retrievable from the file extension
1324     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1325         AddFileToHistory(path);
1326
1327     return docNew;
1328 }
1329
1330 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1331 {
1332     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1333     const size_t numTemplates = templates.size();
1334
1335     if ( numTemplates == 0 )
1336         return NULL;
1337
1338     wxDocTemplate * const
1339     temp = numTemplates == 1 ? templates[0]
1340                              : SelectViewType(&templates[0], numTemplates);
1341
1342     if ( !temp )
1343         return NULL;
1344
1345     wxView *view = temp->CreateView(doc, flags);
1346     if ( view )
1347         view->SetViewName(temp->GetViewName());
1348     return view;
1349 }
1350
1351 // Not yet implemented
1352 void
1353 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1354 {
1355 }
1356
1357 // Not yet implemented
1358 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1359 {
1360     return false;
1361 }
1362
1363 wxDocument *wxDocManager::GetCurrentDocument() const
1364 {
1365     wxView * const view = GetActiveView();
1366     return view ? view->GetDocument() : NULL;
1367 }
1368
1369 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1370 {
1371     wxDocument * const doc = GetCurrentDocument();
1372     return doc ? doc->GetCommandProcessor() : NULL;
1373 }
1374
1375 // Make a default name for a new document
1376 #if WXWIN_COMPATIBILITY_2_8
1377 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1378 {
1379     // we consider that this function can only be overridden by the user code,
1380     // not called by it as it only makes sense to call it internally, so we
1381     // don't bother to return anything from here
1382     return false;
1383 }
1384 #endif // WXWIN_COMPATIBILITY_2_8
1385
1386 wxString wxDocManager::MakeNewDocumentName()
1387 {
1388     wxString name;
1389
1390 #if WXWIN_COMPATIBILITY_2_8
1391     if ( !MakeDefaultName(name) )
1392 #endif // WXWIN_COMPATIBILITY_2_8
1393     {
1394         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1395         m_defaultDocumentNameCounter++;
1396     }
1397
1398     return name;
1399 }
1400
1401 // Make a frame title (override this to do something different)
1402 // If docName is empty, a document is not currently active.
1403 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1404 {
1405     wxString appName = wxTheApp->GetAppDisplayName();
1406     wxString title;
1407     if (!doc)
1408         title = appName;
1409     else
1410     {
1411         wxString docName = doc->GetUserReadableName();
1412         title = docName + wxString(_(" - ")) + appName;
1413     }
1414     return title;
1415 }
1416
1417
1418 // Not yet implemented
1419 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1420 {
1421     return NULL;
1422 }
1423
1424 // File history management
1425 void wxDocManager::AddFileToHistory(const wxString& file)
1426 {
1427     if (m_fileHistory)
1428         m_fileHistory->AddFileToHistory(file);
1429 }
1430
1431 void wxDocManager::RemoveFileFromHistory(size_t i)
1432 {
1433     if (m_fileHistory)
1434         m_fileHistory->RemoveFileFromHistory(i);
1435 }
1436
1437 wxString wxDocManager::GetHistoryFile(size_t i) const
1438 {
1439     wxString histFile;
1440
1441     if (m_fileHistory)
1442         histFile = m_fileHistory->GetHistoryFile(i);
1443
1444     return histFile;
1445 }
1446
1447 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1448 {
1449     if (m_fileHistory)
1450         m_fileHistory->UseMenu(menu);
1451 }
1452
1453 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1454 {
1455     if (m_fileHistory)
1456         m_fileHistory->RemoveMenu(menu);
1457 }
1458
1459 #if wxUSE_CONFIG
1460 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1461 {
1462     if (m_fileHistory)
1463         m_fileHistory->Load(config);
1464 }
1465
1466 void wxDocManager::FileHistorySave(wxConfigBase& config)
1467 {
1468     if (m_fileHistory)
1469         m_fileHistory->Save(config);
1470 }
1471 #endif
1472
1473 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1474 {
1475     if (m_fileHistory)
1476         m_fileHistory->AddFilesToMenu(menu);
1477 }
1478
1479 void wxDocManager::FileHistoryAddFilesToMenu()
1480 {
1481     if (m_fileHistory)
1482         m_fileHistory->AddFilesToMenu();
1483 }
1484
1485 size_t wxDocManager::GetHistoryFilesCount() const
1486 {
1487     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1488 }
1489
1490
1491 // Find out the document template via matching in the document file format
1492 // against that of the template
1493 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1494 {
1495     wxDocTemplate *theTemplate = NULL;
1496
1497     // Find the template which this extension corresponds to
1498     for (size_t i = 0; i < m_templates.GetCount(); i++)
1499     {
1500         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1501         if ( temp->FileMatchesTemplate(path) )
1502         {
1503             theTemplate = temp;
1504             break;
1505         }
1506     }
1507     return theTemplate;
1508 }
1509
1510 // Prompts user to open a file, using file specs in templates.
1511 // Must extend the file selector dialog or implement own; OR
1512 // match the extension to the template extension.
1513
1514 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1515                                                 int noTemplates,
1516                                                 wxString& path,
1517                                                 long WXUNUSED(flags),
1518                                                 bool WXUNUSED(save))
1519 {
1520 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1521     wxString descrBuf;
1522
1523     for (int i = 0; i < noTemplates; i++)
1524     {
1525         if (templates[i]->IsVisible())
1526         {
1527             // add a '|' to separate this filter from the previous one
1528             if ( !descrBuf.empty() )
1529                 descrBuf << wxT('|');
1530
1531             descrBuf << templates[i]->GetDescription()
1532                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1533                 << templates[i]->GetFileFilter();
1534         }
1535     }
1536 #else
1537     wxString descrBuf = wxT("*.*");
1538     wxUnusedVar(noTemplates);
1539 #endif
1540
1541     int FilterIndex = -1;
1542
1543     wxWindow* parent = wxFindSuitableParent();
1544
1545     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1546                                         GetLastDirectory(),
1547                                         wxEmptyString,
1548                                         &FilterIndex,
1549                                         descrBuf,
1550                                         0,
1551                                         parent);
1552
1553     wxDocTemplate *theTemplate = NULL;
1554     if (!pathTmp.empty())
1555     {
1556         if (!wxFileExists(pathTmp))
1557         {
1558             wxString msgTitle;
1559             if (!wxTheApp->GetAppDisplayName().empty())
1560                 msgTitle = wxTheApp->GetAppDisplayName();
1561             else
1562                 msgTitle = wxString(_("File error"));
1563
1564             wxMessageBox(_("Sorry, could not open this file."),
1565                          msgTitle,
1566                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1567                          parent);
1568
1569             path = wxEmptyString;
1570             return NULL;
1571         }
1572
1573         SetLastDirectory(wxPathOnly(pathTmp));
1574
1575         path = pathTmp;
1576
1577         // first choose the template using the extension, if this fails (i.e.
1578         // wxFileSelectorEx() didn't fill it), then use the path
1579         if ( FilterIndex != -1 )
1580             theTemplate = templates[FilterIndex];
1581         if ( !theTemplate )
1582             theTemplate = FindTemplateForPath(path);
1583         if ( !theTemplate )
1584         {
1585             // Since we do not add files with non-default extensions to the
1586             // file history this can only happen if the application changes the
1587             // allowed templates in runtime.
1588             wxMessageBox(_("Sorry, the format for this file is unknown."),
1589                          _("Open File"),
1590                          wxOK | wxICON_EXCLAMATION | wxCENTRE,
1591                          parent);
1592         }
1593     }
1594     else
1595     {
1596         path.clear();
1597     }
1598
1599     return theTemplate;
1600 }
1601
1602 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1603                                                 int noTemplates, bool sort)
1604 {
1605     wxArrayString strings;
1606     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1607     int i;
1608     int n = 0;
1609
1610     for (i = 0; i < noTemplates; i++)
1611     {
1612         if (templates[i]->IsVisible())
1613         {
1614             int j;
1615             bool want = true;
1616             for (j = 0; j < n; j++)
1617             {
1618                 //filter out NOT unique documents + view combinations
1619                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1620                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1621                    )
1622                     want = false;
1623             }
1624
1625             if ( want )
1626             {
1627                 strings.Add(templates[i]->m_description);
1628
1629                 data[n] = templates[i];
1630                 n ++;
1631             }
1632         }
1633     }  // for
1634
1635     if (sort)
1636     {
1637         strings.Sort(); // ascending sort
1638         // Yes, this will be slow, but template lists
1639         // are typically short.
1640         int j;
1641         n = strings.Count();
1642         for (i = 0; i < n; i++)
1643         {
1644             for (j = 0; j < noTemplates; j++)
1645             {
1646                 if (strings[i] == templates[j]->m_description)
1647                     data[i] = templates[j];
1648             }
1649         }
1650     }
1651
1652     wxDocTemplate *theTemplate;
1653
1654     switch ( n )
1655     {
1656         case 0:
1657             // no visible templates, hence nothing to choose from
1658             theTemplate = NULL;
1659             break;
1660
1661         case 1:
1662             // don't propose the user to choose if he has no choice
1663             theTemplate = data[0];
1664             break;
1665
1666         default:
1667             // propose the user to choose one of several
1668             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1669                           (
1670                             _("Select a document template"),
1671                             _("Templates"),
1672                             strings,
1673                             (void **)data.get(),
1674                             wxFindSuitableParent()
1675                           );
1676     }
1677
1678     return theTemplate;
1679 }
1680
1681 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1682                                             int noTemplates, bool sort)
1683 {
1684     wxArrayString strings;
1685     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1686     int i;
1687     int n = 0;
1688
1689     for (i = 0; i < noTemplates; i++)
1690     {
1691         wxDocTemplate *templ = templates[i];
1692         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1693         {
1694             int j;
1695             bool want = true;
1696             for (j = 0; j < n; j++)
1697             {
1698                 //filter out NOT unique views
1699                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1700                     want = false;
1701             }
1702
1703             if ( want )
1704             {
1705                 strings.Add(templ->m_viewTypeName);
1706                 data[n] = templ;
1707                 n ++;
1708             }
1709         }
1710     }
1711
1712     if (sort)
1713     {
1714         strings.Sort(); // ascending sort
1715         // Yes, this will be slow, but template lists
1716         // are typically short.
1717         int j;
1718         n = strings.Count();
1719         for (i = 0; i < n; i++)
1720         {
1721             for (j = 0; j < noTemplates; j++)
1722             {
1723                 if (strings[i] == templates[j]->m_viewTypeName)
1724                     data[i] = templates[j];
1725             }
1726         }
1727     }
1728
1729     wxDocTemplate *theTemplate;
1730
1731     // the same logic as above
1732     switch ( n )
1733     {
1734         case 0:
1735             theTemplate = NULL;
1736             break;
1737
1738         case 1:
1739             theTemplate = data[0];
1740             break;
1741
1742         default:
1743             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1744                           (
1745                             _("Select a document view"),
1746                             _("Views"),
1747                             strings,
1748                             (void **)data.get(),
1749                             wxFindSuitableParent()
1750                           );
1751
1752     }
1753
1754     return theTemplate;
1755 }
1756
1757 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1758 {
1759     if (!m_templates.Member(temp))
1760         m_templates.Append(temp);
1761 }
1762
1763 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1764 {
1765     m_templates.DeleteObject(temp);
1766 }
1767
1768 // Add and remove a document from the manager's list
1769 void wxDocManager::AddDocument(wxDocument *doc)
1770 {
1771     if (!m_docs.Member(doc))
1772         m_docs.Append(doc);
1773 }
1774
1775 void wxDocManager::RemoveDocument(wxDocument *doc)
1776 {
1777     m_docs.DeleteObject(doc);
1778 }
1779
1780 // Views or windows should inform the document manager
1781 // when a view is going in or out of focus
1782 void wxDocManager::ActivateView(wxView *view, bool activate)
1783 {
1784     if ( activate )
1785     {
1786         m_currentView = view;
1787     }
1788     else // deactivate
1789     {
1790         if ( m_currentView == view )
1791         {
1792             // don't keep stale pointer
1793             m_currentView = NULL;
1794         }
1795     }
1796 }
1797
1798 // ----------------------------------------------------------------------------
1799 // wxDocChildFrameAnyBase
1800 // ----------------------------------------------------------------------------
1801
1802 bool wxDocChildFrameAnyBase::CloseView(wxCloseEvent& event)
1803 {
1804     if ( m_childView )
1805     {
1806         if ( event.CanVeto() && !m_childView->Close(false) )
1807         {
1808             event.Veto();
1809             return false;
1810         }
1811
1812         m_childView->Activate(false);
1813         delete m_childView;
1814         m_childView = NULL;
1815     }
1816
1817     m_childDocument = NULL;
1818
1819     return true;
1820 }
1821
1822 // ----------------------------------------------------------------------------
1823 // Default parent frame
1824 // ----------------------------------------------------------------------------
1825
1826 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1827     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1828     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1829     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1830 END_EVENT_TABLE()
1831
1832 wxDocParentFrame::wxDocParentFrame()
1833 {
1834     m_docManager = NULL;
1835 }
1836
1837 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1838                                    wxFrame *frame,
1839                                    wxWindowID id,
1840                                    const wxString& title,
1841                                    const wxPoint& pos,
1842                                    const wxSize& size,
1843                                    long style,
1844                                    const wxString& name)
1845                 : wxFrame(frame, id, title, pos, size, style, name)
1846 {
1847     m_docManager = manager;
1848 }
1849
1850 bool wxDocParentFrame::Create(wxDocManager *manager,
1851                               wxFrame *frame,
1852                               wxWindowID id,
1853                               const wxString& title,
1854                               const wxPoint& pos,
1855                               const wxSize& size,
1856                               long style,
1857                               const wxString& name)
1858 {
1859     m_docManager = manager;
1860     return base_type::Create(frame, id, title, pos, size, style, name);
1861 }
1862
1863 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1864 {
1865     Close();
1866 }
1867
1868 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1869 {
1870     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1871     wxString filename(m_docManager->GetHistoryFile(n));
1872     if ( filename.empty() )
1873         return;
1874
1875     wxString errMsg; // must contain exactly one "%s" if non-empty
1876     if ( wxFile::Exists(filename) )
1877     {
1878         // try to open it
1879         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1880             return;
1881
1882         errMsg = _("The file '%s' couldn't be opened.");
1883     }
1884     else // file doesn't exist
1885     {
1886         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1887     }
1888
1889
1890     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1891
1892     // remove the file which we can't open from the MRU list
1893     m_docManager->RemoveFileFromHistory(n);
1894
1895     // and tell the user about it
1896     wxLogError(errMsg + '\n' +
1897                _("It has been removed from the most recently used files list."),
1898                filename);
1899 }
1900
1901 // Extend event processing to search the view's event table
1902 bool wxDocParentFrame::TryBefore(wxEvent& event)
1903 {
1904     if ( m_docManager && m_docManager->ProcessEventHere(event) )
1905         return true;
1906
1907     return wxFrame::TryBefore(event);
1908 }
1909
1910 // Define the behaviour for the frame closing
1911 // - must delete all frames except for the main one.
1912 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1913 {
1914     if (m_docManager->Clear(!event.CanVeto()))
1915     {
1916         Destroy();
1917     }
1918     else
1919         event.Veto();
1920 }
1921
1922 #if wxUSE_PRINTING_ARCHITECTURE
1923
1924 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1925              : wxPrintout(title)
1926 {
1927     m_printoutView = view;
1928 }
1929
1930 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1931 {
1932     wxDC *dc = GetDC();
1933
1934     // Get the logical pixels per inch of screen and printer
1935     int ppiScreenX, ppiScreenY;
1936     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1937     wxUnusedVar(ppiScreenY);
1938     int ppiPrinterX, ppiPrinterY;
1939     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1940     wxUnusedVar(ppiPrinterY);
1941
1942     // This scales the DC so that the printout roughly represents the
1943     // the screen scaling. The text point size _should_ be the right size
1944     // but in fact is too small for some reason. This is a detail that will
1945     // need to be addressed at some point but can be fudged for the
1946     // moment.
1947     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1948
1949     // Now we have to check in case our real page size is reduced
1950     // (e.g. because we're drawing to a print preview memory DC)
1951     int pageWidth, pageHeight;
1952     int w, h;
1953     dc->GetSize(&w, &h);
1954     GetPageSizePixels(&pageWidth, &pageHeight);
1955     wxUnusedVar(pageHeight);
1956
1957     // If printer pageWidth == current DC width, then this doesn't
1958     // change. But w might be the preview bitmap width, so scale down.
1959     float overallScale = scale * (float)(w/(float)pageWidth);
1960     dc->SetUserScale(overallScale, overallScale);
1961
1962     if (m_printoutView)
1963     {
1964         m_printoutView->OnDraw(dc);
1965     }
1966     return true;
1967 }
1968
1969 bool wxDocPrintout::HasPage(int pageNum)
1970 {
1971     return (pageNum == 1);
1972 }
1973
1974 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1975 {
1976     if (!wxPrintout::OnBeginDocument(startPage, endPage))
1977         return false;
1978
1979     return true;
1980 }
1981
1982 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
1983                                 int *selPageFrom, int *selPageTo)
1984 {
1985     *minPage = 1;
1986     *maxPage = 1;
1987     *selPageFrom = 1;
1988     *selPageTo = 1;
1989 }
1990
1991 #endif // wxUSE_PRINTING_ARCHITECTURE
1992
1993 // ----------------------------------------------------------------------------
1994 // File history (a.k.a. MRU, most recently used, files list)
1995 // ----------------------------------------------------------------------------
1996
1997 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
1998 {
1999     m_fileMaxFiles = maxFiles;
2000     m_idBase = idBase;
2001 }
2002
2003 void wxFileHistory::AddFileToHistory(const wxString& file)
2004 {
2005     // check if we don't already have this file
2006     const wxFileName fnNew(file);
2007     size_t i,
2008            numFiles = m_fileHistory.size();
2009     for ( i = 0; i < numFiles; i++ )
2010     {
2011         if ( fnNew == m_fileHistory[i] )
2012         {
2013             // we do have it, move it to the top of the history
2014             RemoveFileFromHistory(i);
2015             numFiles--;
2016             break;
2017         }
2018     }
2019
2020     // if we already have a full history, delete the one at the end
2021     if ( numFiles == m_fileMaxFiles )
2022     {
2023         RemoveFileFromHistory(--numFiles);
2024     }
2025
2026     // add a new menu item to all file menus (they will be updated below)
2027     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2028         node;
2029         node = node->GetNext() )
2030     {
2031         wxMenu * const menu = (wxMenu *)node->GetData();
2032
2033         if ( !numFiles && menu->GetMenuItemCount() )
2034             menu->AppendSeparator();
2035
2036         // label doesn't matter, it will be set below anyhow, but it can't
2037         // be empty (this is supposed to indicate a stock item)
2038         menu->Append(m_idBase + numFiles, " ");
2039     }
2040
2041     // insert the new file in the beginning of the file history
2042     m_fileHistory.insert(m_fileHistory.begin(), file);
2043     numFiles++;
2044
2045     // update the labels in all menus
2046     for ( i = 0; i < numFiles; i++ )
2047     {
2048         // if in same directory just show the filename; otherwise the full path
2049         const wxFileName fnOld(m_fileHistory[i]);
2050
2051         wxString pathInMenu;
2052         if ( fnOld.GetPath() == fnNew.GetPath() )
2053         {
2054             pathInMenu = fnOld.GetFullName();
2055         }
2056         else // file in different directory
2057         {
2058             // absolute path; could also set relative path
2059             pathInMenu = m_fileHistory[i];
2060         }
2061
2062         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2063               node;
2064               node = node->GetNext() )
2065         {
2066             wxMenu * const menu = (wxMenu *)node->GetData();
2067
2068             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2069         }
2070     }
2071 }
2072
2073 void wxFileHistory::RemoveFileFromHistory(size_t i)
2074 {
2075     size_t numFiles = m_fileHistory.size();
2076     wxCHECK_RET( i < numFiles,
2077                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2078
2079     // delete the element from the array
2080     m_fileHistory.RemoveAt(i);
2081     numFiles--;
2082
2083     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2084           node;
2085           node = node->GetNext() )
2086     {
2087         wxMenu * const menu = (wxMenu *) node->GetData();
2088
2089         // shift filenames up
2090         for ( size_t j = i; j < numFiles; j++ )
2091         {
2092             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2093         }
2094
2095         // delete the last menu item which is unused now
2096         const wxWindowID lastItemId = m_idBase + numFiles;
2097         if ( menu->FindItem(lastItemId) )
2098             menu->Delete(lastItemId);
2099
2100         // delete the last separator too if no more files are left
2101         if ( m_fileHistory.empty() )
2102         {
2103             const wxMenuItemList::compatibility_iterator
2104                 nodeLast = menu->GetMenuItems().GetLast();
2105             if ( nodeLast )
2106             {
2107                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2108                 if ( lastMenuItem->IsSeparator() )
2109                     menu->Delete(lastMenuItem);
2110             }
2111             //else: menu is empty somehow
2112         }
2113     }
2114 }
2115
2116 void wxFileHistory::UseMenu(wxMenu *menu)
2117 {
2118     if ( !m_fileMenus.Member(menu) )
2119         m_fileMenus.Append(menu);
2120 }
2121
2122 void wxFileHistory::RemoveMenu(wxMenu *menu)
2123 {
2124     m_fileMenus.DeleteObject(menu);
2125 }
2126
2127 #if wxUSE_CONFIG
2128 void wxFileHistory::Load(const wxConfigBase& config)
2129 {
2130     m_fileHistory.Clear();
2131
2132     wxString buf;
2133     buf.Printf(wxT("file%d"), 1);
2134
2135     wxString historyFile;
2136     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2137            config.Read(buf, &historyFile) && !historyFile.empty())
2138     {
2139         m_fileHistory.Add(historyFile);
2140
2141         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2142         historyFile = wxEmptyString;
2143     }
2144
2145     AddFilesToMenu();
2146 }
2147
2148 void wxFileHistory::Save(wxConfigBase& config)
2149 {
2150     size_t i;
2151     for (i = 0; i < m_fileMaxFiles; i++)
2152     {
2153         wxString buf;
2154         buf.Printf(wxT("file%d"), (int)i+1);
2155         if (i < m_fileHistory.GetCount())
2156             config.Write(buf, wxString(m_fileHistory[i]));
2157         else
2158             config.Write(buf, wxEmptyString);
2159     }
2160 }
2161 #endif // wxUSE_CONFIG
2162
2163 void wxFileHistory::AddFilesToMenu()
2164 {
2165     if ( m_fileHistory.empty() )
2166         return;
2167
2168     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2169           node;
2170           node = node->GetNext() )
2171     {
2172         AddFilesToMenu((wxMenu *) node->GetData());
2173     }
2174 }
2175
2176 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2177 {
2178     if ( m_fileHistory.empty() )
2179         return;
2180
2181     if ( menu->GetMenuItemCount() )
2182         menu->AppendSeparator();
2183
2184     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2185     {
2186         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2187     }
2188 }
2189
2190 // ----------------------------------------------------------------------------
2191 // Permits compatibility with existing file formats and functions that
2192 // manipulate files directly
2193 // ----------------------------------------------------------------------------
2194
2195 #if wxUSE_STD_IOSTREAM
2196
2197 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2198 {
2199     wxFFile file(filename, _T("rb"));
2200     if ( !file.IsOpened() )
2201         return false;
2202
2203     char buf[4096];
2204
2205     size_t nRead;
2206     do
2207     {
2208         nRead = file.Read(buf, WXSIZEOF(buf));
2209         if ( file.Error() )
2210             return false;
2211
2212         stream.write(buf, nRead);
2213         if ( !stream )
2214             return false;
2215     }
2216     while ( !file.Eof() );
2217
2218     return true;
2219 }
2220
2221 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2222 {
2223     wxFFile file(filename, _T("wb"));
2224     if ( !file.IsOpened() )
2225         return false;
2226
2227     char buf[4096];
2228     do
2229     {
2230         stream.read(buf, WXSIZEOF(buf));
2231         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2232         {
2233             if ( !file.Write(buf, stream.gcount()) )
2234                 return false;
2235         }
2236     }
2237     while ( !stream.eof() );
2238
2239     return true;
2240 }
2241
2242 #else // !wxUSE_STD_IOSTREAM
2243
2244 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2245 {
2246     wxFFile file(filename, _T("rb"));
2247     if ( !file.IsOpened() )
2248         return false;
2249
2250     char buf[4096];
2251
2252     size_t nRead;
2253     do
2254     {
2255         nRead = file.Read(buf, WXSIZEOF(buf));
2256         if ( file.Error() )
2257             return false;
2258
2259         stream.Write(buf, nRead);
2260         if ( !stream )
2261             return false;
2262     }
2263     while ( !file.Eof() );
2264
2265     return true;
2266 }
2267
2268 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2269 {
2270     wxFFile file(filename, _T("wb"));
2271     if ( !file.IsOpened() )
2272         return false;
2273
2274     char buf[4096];
2275     for ( ;; )
2276     {
2277         stream.Read(buf, WXSIZEOF(buf));
2278
2279         const size_t nRead = stream.LastRead();
2280         if ( !nRead )
2281         {
2282             if ( stream.Eof() )
2283                 break;
2284
2285             return false;
2286         }
2287
2288         if ( !file.Write(buf, nRead) )
2289             return false;
2290     }
2291
2292     return true;
2293 }
2294
2295 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2296
2297 #endif // wxUSE_DOC_VIEW_ARCHITECTURE