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