src/common/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/docview.cpp
   3 // Purpose:     Document/view classes
   4 // Author:      Julian Smart
   5 // Modified by:
   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 #include "wx/ffile.h"
  48
  49 #ifdef __WXMAC__
  50     #include "wx/filename.h"
  51 #endif
  52
  53 #if wxUSE_PRINTING_ARCHITECTURE
  54     #include "wx/prntbase.h"
  55     #include "wx/printdlg.h"
  56 #endif
  57
  58 #include "wx/confbase.h"
  59 #include "wx/file.h"
  60 #include "wx/cmdproc.h"
  61 #include "wx/tokenzr.h"
  62 #include "wx/filename.h"
  63
  64 #include <stdio.h>
  65 #include <string.h>
  66
  67 #if wxUSE_STD_IOSTREAM
  68     #include "wx/ioswrap.h"
  69     #include "wx/beforestd.h"
  70     #if wxUSE_IOSTREAMH
  71         #include <fstream.h>
  72     #else
  73         #include <fstream>
  74     #endif
  75     #include "wx/afterstd.h"
  76 #else
  77     #include "wx/wfstream.h"
  78 #endif
  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 // function prototypes
  99 // ----------------------------------------------------------------------------
 100
 101 static wxWindow* wxFindSuitableParent(void);
 102
 103 // ----------------------------------------------------------------------------
 104 // local constants
 105 // ----------------------------------------------------------------------------
 106
 107 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 108
 109 // ============================================================================
 110 // implementation
 111 // ============================================================================
 112
 113 // ----------------------------------------------------------------------------
 114 // local functions
 115 // ----------------------------------------------------------------------------
 116
 117 static wxString FindExtension(const wxString& path)
 118 {
 119     wxString ext;
 120     wxSplitPath(path, NULL, NULL, &ext);
 121
 122     // VZ: extensions are considered not case sensitive - is this really a good
 123     //     idea?
 124     return ext.MakeLower();
 125 }
 126
 127 // ----------------------------------------------------------------------------
 128 // Definition of wxDocument
 129 // ----------------------------------------------------------------------------
 130
 131 wxDocument::wxDocument(wxDocument *parent)
 132 {
 133     m_documentModified = false;
 134     m_documentParent = parent;
 135     m_documentTemplate = (wxDocTemplate *) NULL;
 136     m_commandProcessor = (wxCommandProcessor*) NULL;
 137     m_savedYet = false;
 138 }
 139
 140 bool wxDocument::DeleteContents()
 141 {
 142     return true;
 143 }
 144
 145 wxDocument::~wxDocument()
 146 {
 147     DeleteContents();
 148
 149     if (m_commandProcessor)
 150         delete m_commandProcessor;
 151
 152     if (GetDocumentManager())
 153         GetDocumentManager()->RemoveDocument(this);
 154
 155     // Not safe to do here, since it'll invoke virtual view functions
 156     // expecting to see valid derived objects: and by the time we get here,
 157     // we've called destructors higher up.
 158     //DeleteAllViews();
 159 }
 160
 161 bool wxDocument::Close()
 162 {
 163     if (OnSaveModified())
 164         return OnCloseDocument();
 165     else
 166         return false;
 167 }
 168
 169 bool wxDocument::OnCloseDocument()
 170 {
 171     // Tell all views that we're about to close
 172     NotifyClosing();
 173     DeleteContents();
 174     Modify(false);
 175     return true;
 176 }
 177
 178 // Note that this implicitly deletes the document when the last view is
 179 // deleted.
 180 bool wxDocument::DeleteAllViews()
 181 {
 182     wxDocManager* manager = GetDocumentManager();
 183
 184     // first check if all views agree to be closed
 185     const wxList::iterator end = m_documentViews.end();
 186     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 187     {
 188         wxView *view = (wxView *)*i;
 189         if ( !view->Close() )
 190             return false;
 191     }
 192
 193     // all views agreed to close, now do close them
 194     if ( m_documentViews.empty() )
 195     {
 196         // normally the document would be implicitly deleted when the last view
 197         // is, but if don't have any views, do it here instead
 198         if ( manager && manager->GetDocuments().Member(this) )
 199             delete this;
 200     }
 201     else // have views
 202     {
 203         // as we delete elements we iterate over, don't use the usual "from
 204         // begin to end" loop
 205         for ( ;; )
 206         {
 207             wxView *view = (wxView *)*m_documentViews.begin();
 208
 209             bool isLastOne = m_documentViews.size() == 1;
 210
 211             // this always deletes the node implicitly and if this is the last
 212             // view also deletes this object itself (also implicitly, great),
 213             // so we can't test for m_documentViews.empty() after calling this!
 214             delete view;
 215
 216             if ( isLastOne )
 217                 break;
 218         }
 219     }
 220
 221     return true;
 222 }
 223
 224 wxView *wxDocument::GetFirstView() const
 225 {
 226     if (m_documentViews.GetCount() == 0)
 227         return (wxView *) NULL;
 228     return (wxView *)m_documentViews.GetFirst()->GetData();
 229 }
 230
 231 wxDocManager *wxDocument::GetDocumentManager() const
 232 {
 233     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 234 }
 235
 236 bool wxDocument::OnNewDocument()
 237 {
 238     if (!OnSaveModified())
 239         return false;
 240
 241     if (OnCloseDocument()==false) return false;
 242     DeleteContents();
 243     Modify(false);
 244     SetDocumentSaved(false);
 245
 246     const wxString name = GetDocumentManager()->MakeNewDocumentName();
 247     SetTitle(name);
 248     SetFilename(name, true);
 249
 250     return true;
 251 }
 252
 253 bool wxDocument::Save()
 254 {
 255     if (!IsModified() && m_savedYet)
 256         return true;
 257
 258     if ( m_documentFile.empty() || !m_savedYet )
 259         return SaveAs();
 260
 261     return OnSaveDocument(m_documentFile);
 262 }
 263
 264 bool wxDocument::SaveAs()
 265 {
 266     wxDocTemplate *docTemplate = GetDocumentTemplate();
 267     if (!docTemplate)
 268         return false;
 269
 270 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 271     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 272
 273     // Now see if there are some other template with identical view and document
 274     // classes, whose filters may also be used.
 275
 276     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 277     {
 278         wxList::compatibility_iterator node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
 279         while (node)
 280         {
 281             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 282
 283             if (t->IsVisible() && t != docTemplate &&
 284                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 285                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 286             {
 287                 // add a '|' to separate this filter from the previous one
 288                 if ( !filter.empty() )
 289                     filter << wxT('|');
 290
 291                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 292                        << t->GetFileFilter();
 293             }
 294
 295             node = node->GetNext();
 296         }
 297     }
 298 #else
 299     wxString filter = docTemplate->GetFileFilter() ;
 300 #endif
 301     wxString tmp = wxFileSelector(_("Save as"),
 302             docTemplate->GetDirectory(),
 303             wxFileNameFromPath(GetFilename()),
 304             docTemplate->GetDefaultExtension(),
 305             filter,
 306             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 307             GetDocumentWindow());
 308
 309     if (tmp.empty())
 310         return false;
 311
 312     wxString fileName(tmp);
 313     wxString path, name, ext;
 314     wxSplitPath(fileName, & path, & name, & ext);
 315
 316     if (ext.empty())
 317     {
 318         fileName += wxT(".");
 319         fileName += docTemplate->GetDefaultExtension();
 320     }
 321
 322     SetFilename(fileName);
 323     SetTitle(wxFileNameFromPath(fileName));
 324
 325     // Notify the views that the filename has changed
 326     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 327     while (node)
 328     {
 329         wxView *view = (wxView *)node->GetData();
 330         view->OnChangeFilename();
 331         node = node->GetNext();
 332     }
 333
 334     // Files that were not saved correctly are not added to the FileHistory.
 335     if (!OnSaveDocument(m_documentFile))
 336         return false;
 337
 338    // A file that doesn't use the default extension of its document template cannot be opened
 339    // via the FileHistory, so we do not add it.
 340    if (docTemplate->FileMatchesTemplate(fileName))
 341    {
 342        GetDocumentManager()->AddFileToHistory(fileName);
 343    }
 344    else
 345    {
 346        // The user will probably not be able to open the file again, so
 347        // we could warn about the wrong file-extension here.
 348    }
 349    return true;
 350 }
 351
 352 bool wxDocument::OnSaveDocument(const wxString& file)
 353 {
 354     if ( !file )
 355         return false;
 356
 357     if ( !DoSaveDocument(file) )
 358         return false;
 359
 360     Modify(false);
 361     SetFilename(file);
 362     SetDocumentSaved(true);
 363 #ifdef __WXMAC__
 364     wxFileName fn(file) ;
 365     fn.MacSetDefaultTypeAndCreator() ;
 366 #endif
 367     return true;
 368 }
 369
 370 bool wxDocument::OnOpenDocument(const wxString& file)
 371 {
 372     if (!OnSaveModified())
 373         return false;
 374
 375     if ( !DoOpenDocument(file) )
 376         return false;
 377
 378     SetFilename(file, true);
 379     Modify(false);
 380     m_savedYet = true;
 381
 382     UpdateAllViews();
 383
 384     return true;
 385 }
 386
 387 #if wxUSE_STD_IOSTREAM
 388 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 389 #else
 390 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 391 #endif
 392 {
 393     return stream;
 394 }
 395
 396 #if wxUSE_STD_IOSTREAM
 397 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 398 #else
 399 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 400 #endif
 401 {
 402     return stream;
 403 }
 404
 405 bool wxDocument::Revert()
 406 {
 407     return false;
 408 }
 409
 410
 411 // Get title, or filename if no title, else unnamed
 412 #if WXWIN_COMPATIBILITY_2_8
 413 bool wxDocument::GetPrintableName(wxString& buf) const
 414 {
 415     // this function can not only be overridden by the user code but also
 416     // called by it so we need to ensure that we return the same thing as
 417     // GetUserReadableName() but we can't call it because this would result in
 418     // an infinite recursion, hence we use the helper DoGetUserReadableName()
 419     buf = DoGetUserReadableName();
 420
 421     return true;
 422 }
 423 #endif // WXWIN_COMPATIBILITY_2_8
 424
 425 wxString wxDocument::GetUserReadableName() const
 426 {
 427 #if WXWIN_COMPATIBILITY_2_8
 428     // we need to call the old virtual function to ensure that the overridden
 429     // version of it is still called
 430     wxString name;
 431     if ( GetPrintableName(name) )
 432         return name;
 433 #endif // WXWIN_COMPATIBILITY_2_8
 434
 435     return DoGetUserReadableName();
 436 }
 437
 438 wxString wxDocument::DoGetUserReadableName() const
 439 {
 440     if ( !m_documentTitle.empty() )
 441         return m_documentTitle;
 442
 443     if ( !m_documentFile.empty() )
 444         return wxFileNameFromPath(m_documentFile);
 445
 446     return _("unnamed");
 447 }
 448
 449 wxWindow *wxDocument::GetDocumentWindow() const
 450 {
 451     wxView *view = GetFirstView();
 452     if (view)
 453         return view->GetFrame();
 454     else
 455         return wxTheApp->GetTopWindow();
 456 }
 457
 458 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 459 {
 460     return new wxCommandProcessor;
 461 }
 462
 463 // true if safe to close
 464 bool wxDocument::OnSaveModified()
 465 {
 466     if (IsModified())
 467     {
 468         wxString title = GetUserReadableName();
 469
 470         wxString msgTitle;
 471         if (!wxTheApp->GetAppName().empty())
 472             msgTitle = wxTheApp->GetAppName();
 473         else
 474             msgTitle = wxString(_("Warning"));
 475
 476         wxString prompt;
 477         prompt.Printf(_("Do you want to save changes to document %s?"), title);
 478         int res = wxMessageBox(prompt, msgTitle,
 479                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 480                 GetDocumentWindow());
 481         if (res == wxNO)
 482         {
 483             Modify(false);
 484             return true;
 485         }
 486         else if (res == wxYES)
 487             return Save();
 488         else if (res == wxCANCEL)
 489             return false;
 490     }
 491     return true;
 492 }
 493
 494 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 495 {
 496     return true;
 497 }
 498
 499 bool wxDocument::AddView(wxView *view)
 500 {
 501     if (!m_documentViews.Member(view))
 502     {
 503         m_documentViews.Append(view);
 504         OnChangedViewList();
 505     }
 506     return true;
 507 }
 508
 509 bool wxDocument::RemoveView(wxView *view)
 510 {
 511     (void)m_documentViews.DeleteObject(view);
 512     OnChangedViewList();
 513     return true;
 514 }
 515
 516 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 517 {
 518     if (GetDocumentTemplate()->CreateView(this, flags))
 519         return true;
 520     else
 521         return false;
 522 }
 523
 524 // Called after a view is added or removed.
 525 // The default implementation deletes the document if
 526 // there are no more views.
 527 void wxDocument::OnChangedViewList()
 528 {
 529     if (m_documentViews.GetCount() == 0)
 530     {
 531         if (OnSaveModified())
 532         {
 533             delete this;
 534         }
 535     }
 536 }
 537
 538 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 539 {
 540     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 541     while (node)
 542     {
 543         wxView *view = (wxView *)node->GetData();
 544         if (view != sender)
 545             view->OnUpdate(sender, hint);
 546         node = node->GetNext();
 547     }
 548 }
 549
 550 void wxDocument::NotifyClosing()
 551 {
 552     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 553     while (node)
 554     {
 555         wxView *view = (wxView *)node->GetData();
 556         view->OnClosingDocument();
 557         node = node->GetNext();
 558     }
 559 }
 560
 561 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 562 {
 563     m_documentFile = filename;
 564     if ( notifyViews )
 565     {
 566         // Notify the views that the filename has changed
 567         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 568         while (node)
 569         {
 570             wxView *view = (wxView *)node->GetData();
 571             view->OnChangeFilename();
 572             node = node->GetNext();
 573         }
 574     }
 575 }
 576
 577 bool wxDocument::DoSaveDocument(const wxString& file)
 578 {
 579     wxString msgTitle;
 580     if (!wxTheApp->GetAppName().empty())
 581         msgTitle = wxTheApp->GetAppName();
 582     else
 583         msgTitle = wxString(_("File error"));
 584
 585 #if wxUSE_STD_IOSTREAM
 586     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 587     if (store.fail() || store.bad())
 588 #else
 589     wxFileOutputStream store(file);
 590     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 591 #endif
 592     {
 593         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 594                            GetDocumentWindow());
 595         // Saving error
 596         return false;
 597     }
 598     if (!SaveObject(store))
 599     {
 600         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 601                            GetDocumentWindow());
 602         // Saving error
 603         return false;
 604     }
 605
 606     return true;
 607 }
 608
 609 bool wxDocument::DoOpenDocument(const wxString& file)
 610 {
 611 #if wxUSE_STD_IOSTREAM
 612     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 613     if (!store.fail() && !store.bad())
 614 #else
 615     wxFileInputStream store(file);
 616     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 617 #endif
 618     {
 619 #if wxUSE_STD_IOSTREAM
 620         LoadObject(store);
 621         if ( !!store || store.eof() )
 622 #else
 623         int res = LoadObject(store).GetLastError();
 624         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 625 #endif
 626             return true;
 627     }
 628
 629     wxLogError(_("Sorry, could not open this file."));
 630     return false;
 631 }
 632
 633
 634 // ----------------------------------------------------------------------------
 635 // Document view
 636 // ----------------------------------------------------------------------------
 637
 638 wxView::wxView()
 639 {
 640     m_viewDocument = (wxDocument*) NULL;
 641
 642     m_viewFrame = (wxFrame *) NULL;
 643 }
 644
 645 wxView::~wxView()
 646 {
 647     GetDocumentManager()->ActivateView(this, false);
 648     m_viewDocument->RemoveView(this);
 649 }
 650
 651 // Extend event processing to search the document's event table
 652 bool wxView::ProcessEvent(wxEvent& event)
 653 {
 654     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 655         return wxEvtHandler::ProcessEvent(event);
 656
 657     return true;
 658 }
 659
 660 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 661 {
 662 }
 663
 664 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 665 {
 666     OnDraw(dc);
 667 }
 668
 669 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 670 {
 671 }
 672
 673 void wxView::OnChangeFilename()
 674 {
 675     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 676     // generic MDI implementation so use SetLabel rather than SetTitle.
 677     // It should cause SetTitle() for top level windows.
 678     wxWindow *win = GetFrame();
 679     if (!win) return;
 680
 681     wxDocument *doc = GetDocument();
 682     if (!doc) return;
 683
 684     win->SetLabel(doc->GetUserReadableName());
 685 }
 686
 687 void wxView::SetDocument(wxDocument *doc)
 688 {
 689     m_viewDocument = doc;
 690     if (doc)
 691         doc->AddView(this);
 692 }
 693
 694 bool wxView::Close(bool deleteWindow)
 695 {
 696     if (OnClose(deleteWindow))
 697         return true;
 698     else
 699         return false;
 700 }
 701
 702 void wxView::Activate(bool activate)
 703 {
 704     if (GetDocument() && GetDocumentManager())
 705     {
 706         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 707         GetDocumentManager()->ActivateView(this, activate);
 708     }
 709 }
 710
 711 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 712 {
 713     return GetDocument() ? GetDocument()->Close() : true;
 714 }
 715
 716 #if wxUSE_PRINTING_ARCHITECTURE
 717 wxPrintout *wxView::OnCreatePrintout()
 718 {
 719     return new wxDocPrintout(this);
 720 }
 721 #endif // wxUSE_PRINTING_ARCHITECTURE
 722
 723 // ----------------------------------------------------------------------------
 724 // wxDocTemplate
 725 // ----------------------------------------------------------------------------
 726
 727 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 728                              const wxString& descr,
 729                              const wxString& filter,
 730                              const wxString& dir,
 731                              const wxString& ext,
 732                              const wxString& docTypeName,
 733                              const wxString& viewTypeName,
 734                              wxClassInfo *docClassInfo,
 735                              wxClassInfo *viewClassInfo,
 736                              long flags)
 737 {
 738     m_documentManager = manager;
 739     m_description = descr;
 740     m_directory = dir;
 741     m_defaultExt = ext;
 742     m_fileFilter = filter;
 743     m_flags = flags;
 744     m_docTypeName = docTypeName;
 745     m_viewTypeName = viewTypeName;
 746     m_documentManager->AssociateTemplate(this);
 747
 748     m_docClassInfo = docClassInfo;
 749     m_viewClassInfo = viewClassInfo;
 750 }
 751
 752 wxDocTemplate::~wxDocTemplate()
 753 {
 754     m_documentManager->DisassociateTemplate(this);
 755 }
 756
 757 // Tries to dynamically construct an object of the right class.
 758 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 759 {
 760     wxDocument *doc = DoCreateDocument();
 761     if ( doc == NULL )
 762         return (wxDocument *) NULL;
 763
 764     if (InitDocument(doc, path, flags))
 765     {
 766         return doc;
 767     }
 768     else
 769     {
 770         return (wxDocument *) NULL;
 771     }
 772 }
 773
 774 bool wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 775 {
 776     doc->SetFilename(path);
 777     doc->SetDocumentTemplate(this);
 778     GetDocumentManager()->AddDocument(doc);
 779     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 780
 781     if (doc->OnCreate(path, flags))
 782         return true;
 783     else
 784     {
 785         if (GetDocumentManager()->GetDocuments().Member(doc))
 786             doc->DeleteAllViews();
 787         return false;
 788     }
 789 }
 790
 791 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 792 {
 793     wxView *view = DoCreateView();
 794     if ( view == NULL )
 795         return (wxView *) NULL;
 796
 797     view->SetDocument(doc);
 798     if (view->OnCreate(doc, flags))
 799     {
 800         return view;
 801     }
 802     else
 803     {
 804         delete view;
 805         return (wxView *) NULL;
 806     }
 807 }
 808
 809 // The default (very primitive) format detection: check is the extension is
 810 // that of the template
 811 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 812 {
 813     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 814     wxString anything = wxT ("*");
 815     while (parser.HasMoreTokens())
 816     {
 817         wxString filter = parser.GetNextToken();
 818         wxString filterExt = FindExtension (filter);
 819         if ( filter.IsSameAs (anything)    ||
 820              filterExt.IsSameAs (anything) ||
 821              filterExt.IsSameAs (FindExtension (path)) )
 822             return true;
 823     }
 824     return GetDefaultExtension().IsSameAs(FindExtension(path));
 825 }
 826
 827 wxDocument *wxDocTemplate::DoCreateDocument()
 828 {
 829     if (!m_docClassInfo)
 830         return (wxDocument *) NULL;
 831
 832     return (wxDocument *)m_docClassInfo->CreateObject();
 833 }
 834
 835 wxView *wxDocTemplate::DoCreateView()
 836 {
 837     if (!m_viewClassInfo)
 838         return (wxView *) NULL;
 839
 840     return (wxView *)m_viewClassInfo->CreateObject();
 841 }
 842
 843 // ----------------------------------------------------------------------------
 844 // wxDocManager
 845 // ----------------------------------------------------------------------------
 846
 847 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 848     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 849     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 850     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 851     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 852     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 853     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 854     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 855     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 856     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 857
 858     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 859     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 860     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 861     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 862     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 863     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 864     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 865     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 866     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 867
 868 #if wxUSE_PRINTING_ARCHITECTURE
 869     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 870     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 871
 872     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 873     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 874 #endif
 875 END_EVENT_TABLE()
 876
 877 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 878
 879 wxDocManager::wxDocManager(long flags, bool initialize)
 880 {
 881     m_defaultDocumentNameCounter = 1;
 882     m_flags = flags;
 883     m_currentView = (wxView *) NULL;
 884     m_maxDocsOpen = 10000;
 885     m_fileHistory = (wxFileHistory *) NULL;
 886     if (initialize)
 887         Initialize();
 888     sm_docManager = this;
 889 }
 890
 891 wxDocManager::~wxDocManager()
 892 {
 893     Clear();
 894     if (m_fileHistory)
 895         delete m_fileHistory;
 896     sm_docManager = (wxDocManager*) NULL;
 897 }
 898
 899 // closes the specified document
 900 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 901 {
 902     if (doc->Close() || force)
 903     {
 904         // Implicitly deletes the document when
 905         // the last view is deleted
 906         doc->DeleteAllViews();
 907
 908         // Check we're really deleted
 909         if (m_docs.Member(doc))
 910             delete doc;
 911
 912         return true;
 913     }
 914     return false;
 915 }
 916
 917 bool wxDocManager::CloseDocuments(bool force)
 918 {
 919     wxList::compatibility_iterator node = m_docs.GetFirst();
 920     while (node)
 921     {
 922         wxDocument *doc = (wxDocument *)node->GetData();
 923         wxList::compatibility_iterator next = node->GetNext();
 924
 925         if (!CloseDocument(doc, force))
 926             return false;
 927
 928         // This assumes that documents are not connected in
 929         // any way, i.e. deleting one document does NOT
 930         // delete another.
 931         node = next;
 932     }
 933     return true;
 934 }
 935
 936 bool wxDocManager::Clear(bool force)
 937 {
 938     if (!CloseDocuments(force))
 939         return false;
 940
 941     m_currentView = NULL;
 942
 943     wxList::compatibility_iterator node = m_templates.GetFirst();
 944     while (node)
 945     {
 946         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 947         wxList::compatibility_iterator next = node->GetNext();
 948         delete templ;
 949         node = next;
 950     }
 951     return true;
 952 }
 953
 954 bool wxDocManager::Initialize()
 955 {
 956     m_fileHistory = OnCreateFileHistory();
 957     return true;
 958 }
 959
 960 wxFileHistory *wxDocManager::OnCreateFileHistory()
 961 {
 962     return new wxFileHistory;
 963 }
 964
 965 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 966 {
 967     wxDocument *doc = GetCurrentDocument();
 968     if (!doc)
 969         return;
 970     if (doc->Close())
 971     {
 972         doc->DeleteAllViews();
 973         if (m_docs.Member(doc))
 974             delete doc;
 975     }
 976 }
 977
 978 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 979 {
 980     CloseDocuments(false);
 981 }
 982
 983 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 984 {
 985     CreateDocument( wxEmptyString, wxDOC_NEW );
 986 }
 987
 988 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 989 {
 990     if ( !CreateDocument( wxEmptyString, 0) )
 991     {
 992         OnOpenFileFailure();
 993     }
 994 }
 995
 996 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 997 {
 998     wxDocument *doc = GetCurrentDocument();
 999     if (!doc)
1000         return;
1001     doc->Revert();
1002 }
1003
1004 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1005 {
1006     wxDocument *doc = GetCurrentDocument();
1007     if (!doc)
1008         return;
1009     doc->Save();
1010 }
1011
1012 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1013 {
1014     wxDocument *doc = GetCurrentDocument();
1015     if (!doc)
1016         return;
1017     doc->SaveAs();
1018 }
1019
1020 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1021 {
1022 #if wxUSE_PRINTING_ARCHITECTURE
1023     wxView *view = GetCurrentView();
1024     if (!view)
1025         return;
1026
1027     wxPrintout *printout = view->OnCreatePrintout();
1028     if (printout)
1029     {
1030         wxPrinter printer;
1031         printer.Print(view->GetFrame(), printout, true);
1032
1033         delete printout;
1034     }
1035 #endif // wxUSE_PRINTING_ARCHITECTURE
1036 }
1037
1038 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1039 {
1040 #if wxUSE_PRINTING_ARCHITECTURE
1041     wxView *view = GetCurrentView();
1042     if (!view)
1043         return;
1044
1045     wxPrintout *printout = view->OnCreatePrintout();
1046     if (printout)
1047     {
1048         // Pass two printout objects: for preview, and possible printing.
1049         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1050         if ( !preview->Ok() )
1051         {
1052             delete preview;
1053             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1054             return;
1055         }
1056
1057         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1058                 wxPoint(100, 100), wxSize(600, 650));
1059         frame->Centre(wxBOTH);
1060         frame->Initialize();
1061         frame->Show(true);
1062     }
1063 #endif // wxUSE_PRINTING_ARCHITECTURE
1064 }
1065
1066 void wxDocManager::OnUndo(wxCommandEvent& event)
1067 {
1068     wxDocument *doc = GetCurrentDocument();
1069     if (!doc)
1070         return;
1071     if (doc->GetCommandProcessor())
1072         doc->GetCommandProcessor()->Undo();
1073     else
1074         event.Skip();
1075 }
1076
1077 void wxDocManager::OnRedo(wxCommandEvent& event)
1078 {
1079     wxDocument *doc = GetCurrentDocument();
1080     if (!doc)
1081         return;
1082     if (doc->GetCommandProcessor())
1083         doc->GetCommandProcessor()->Redo();
1084     else
1085         event.Skip();
1086 }
1087
1088 // Handlers for UI update commands
1089
1090 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1091 {
1092     event.Enable( true );
1093 }
1094
1095 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1096 {
1097     wxDocument *doc = GetCurrentDocument();
1098     event.Enable( (doc != (wxDocument*) NULL) );
1099 }
1100
1101 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1102 {
1103     wxDocument *doc = GetCurrentDocument();
1104     event.Enable( (doc != (wxDocument*) NULL) );
1105 }
1106
1107 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1108 {
1109     event.Enable( true );
1110 }
1111
1112 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1113 {
1114     wxDocument *doc = GetCurrentDocument();
1115     event.Enable( doc && doc->IsModified() );
1116 }
1117
1118 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1119 {
1120     wxDocument *doc = GetCurrentDocument();
1121     event.Enable( (doc != (wxDocument*) NULL) );
1122 }
1123
1124 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1125 {
1126     wxDocument *doc = GetCurrentDocument();
1127     if (!doc)
1128         event.Enable(false);
1129     else if (!doc->GetCommandProcessor())
1130         event.Skip();
1131     else
1132     {
1133         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1134         doc->GetCommandProcessor()->SetMenuStrings();
1135     }
1136 }
1137
1138 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1139 {
1140     wxDocument *doc = GetCurrentDocument();
1141     if (!doc)
1142         event.Enable(false);
1143     else if (!doc->GetCommandProcessor())
1144         event.Skip();
1145     else
1146     {
1147         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1148         doc->GetCommandProcessor()->SetMenuStrings();
1149     }
1150 }
1151
1152 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1153 {
1154     wxDocument *doc = GetCurrentDocument();
1155     event.Enable( (doc != (wxDocument*) NULL) );
1156 }
1157
1158 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1159 {
1160     wxDocument *doc = GetCurrentDocument();
1161     event.Enable( (doc != (wxDocument*) NULL) );
1162 }
1163
1164 wxView *wxDocManager::GetCurrentView() const
1165 {
1166     if (m_currentView)
1167         return m_currentView;
1168     if (m_docs.GetCount() == 1)
1169     {
1170         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1171         return doc->GetFirstView();
1172     }
1173     return (wxView *) NULL;
1174 }
1175
1176 // Extend event processing to search the view's event table
1177 bool wxDocManager::ProcessEvent(wxEvent& event)
1178 {
1179     wxView* view = GetCurrentView();
1180     if (view)
1181     {
1182         if (view->ProcessEvent(event))
1183             return true;
1184     }
1185     return wxEvtHandler::ProcessEvent(event);
1186 }
1187
1188 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1189 {
1190     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1191     int               n = 0;
1192
1193     for (size_t i = 0; i < m_templates.GetCount(); i++)
1194     {
1195         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1196         if (temp->IsVisible())
1197         {
1198             templates[n] = temp;
1199             n ++;
1200         }
1201     }
1202     if (n == 0)
1203     {
1204         delete[] templates;
1205         return (wxDocument *) NULL;
1206     }
1207
1208     wxDocument* docToClose = NULL;
1209
1210     // If we've reached the max number of docs, close the
1211     // first one.
1212     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1213     {
1214         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1215         docToClose = doc;
1216     }
1217
1218     // New document: user chooses a template, unless there's only one.
1219     if (flags & wxDOC_NEW)
1220     {
1221         if (n == 1)
1222         {
1223             if (docToClose)
1224             {
1225                 if (!CloseDocument(docToClose, false))
1226                 {
1227                     delete[] templates;
1228                     return NULL;
1229                 }
1230             }
1231
1232             wxDocTemplate *temp = templates[0];
1233             delete[] templates;
1234             wxDocument *newDoc = temp->CreateDocument(path, flags);
1235
1236             if (newDoc)
1237             {
1238                 newDoc->SetDocumentName(temp->GetDocumentName());
1239                 newDoc->SetDocumentTemplate(temp);
1240                 if (!newDoc->OnNewDocument() )
1241                 {
1242                      // Document is implicitly deleted by DeleteAllViews
1243                      newDoc->DeleteAllViews();
1244                      return NULL;
1245                 }
1246             }
1247             return newDoc;
1248         }
1249
1250         wxDocTemplate *temp = SelectDocumentType(templates, n);
1251         delete[] templates;
1252         if (temp)
1253         {
1254             if (docToClose)
1255             {
1256                 if (!CloseDocument(docToClose, false))
1257                 {
1258                     return NULL;
1259                 }
1260             }
1261
1262             wxDocument *newDoc = temp->CreateDocument(path, flags);
1263
1264             if (newDoc)
1265             {
1266                 newDoc->SetDocumentName(temp->GetDocumentName());
1267                 newDoc->SetDocumentTemplate(temp);
1268                 if (!newDoc->OnNewDocument() )
1269                 {
1270                      // Document is implicitly deleted by DeleteAllViews
1271                      newDoc->DeleteAllViews();
1272                      return NULL;
1273                 }
1274             }
1275             return newDoc;
1276         }
1277         else
1278             return (wxDocument *) NULL;
1279     }
1280
1281     // Existing document
1282     wxDocTemplate *temp;
1283
1284     wxString path2 = path;
1285
1286     if (flags & wxDOC_SILENT)
1287     {
1288         temp = FindTemplateForPath(path2);
1289         if (!temp)
1290         {
1291             // Since we do not add files with non-default extensions to the FileHistory this
1292             // can only happen if the application changes the allowed templates in runtime.
1293             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1294                                 _("Open File"),
1295                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1296         }
1297     }
1298     else
1299         temp = SelectDocumentPath(templates, n, path2, flags);
1300
1301     delete[] templates;
1302
1303     if (temp)
1304     {
1305         if (docToClose)
1306         {
1307             if (!CloseDocument(docToClose, false))
1308             {
1309                 return NULL;
1310             }
1311         }
1312
1313         //see if this file is already open
1314         for (size_t i = 0; i < GetDocuments().GetCount(); ++i)
1315         {
1316             wxDocument* currentDoc = (wxDocument*)(GetDocuments().Item(i)->GetData());
1317 #ifdef __WXMSW__
1318             //file paths are case-insensitive on Windows
1319             if (path2.CmpNoCase(currentDoc->GetFilename()) == 0)
1320 #else
1321             if (path2.Cmp(currentDoc->GetFilename()) == 0)
1322 #endif
1323             {
1324                 //file already open. Just activate it and return
1325                 if (currentDoc->GetFirstView())
1326                 {
1327                     ActivateView(currentDoc->GetFirstView(), true);
1328                     if (currentDoc->GetDocumentWindow())
1329                         currentDoc->GetDocumentWindow()->SetFocus();
1330                     return currentDoc;
1331                 }
1332             }
1333         }
1334
1335         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1336         if (newDoc)
1337         {
1338             newDoc->SetDocumentName(temp->GetDocumentName());
1339             newDoc->SetDocumentTemplate(temp);
1340             if (!newDoc->OnOpenDocument(path2))
1341             {
1342                 newDoc->DeleteAllViews();
1343                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1344                 return (wxDocument *) NULL;
1345             }
1346             // A file that doesn't use the default extension of its document
1347             // template cannot be opened via the FileHistory, so we do not
1348             // add it.
1349             if (temp->FileMatchesTemplate(path2))
1350                 AddFileToHistory(path2);
1351         }
1352         return newDoc;
1353     }
1354
1355     return (wxDocument *) NULL;
1356 }
1357
1358 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1359 {
1360     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1361     int               n =0;
1362
1363     for (size_t i = 0; i < m_templates.GetCount(); i++)
1364     {
1365         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1366         if (temp->IsVisible())
1367         {
1368             if (temp->GetDocumentName() == doc->GetDocumentName())
1369             {
1370                 templates[n] = temp;
1371                 n ++;
1372             }
1373         }
1374     }
1375     if (n == 0)
1376     {
1377         delete[] templates;
1378         return (wxView *) NULL;
1379     }
1380     if (n == 1)
1381     {
1382         wxDocTemplate *temp = templates[0];
1383         delete[] templates;
1384         wxView *view = temp->CreateView(doc, flags);
1385         if (view)
1386             view->SetViewName(temp->GetViewName());
1387         return view;
1388     }
1389
1390     wxDocTemplate *temp = SelectViewType(templates, n);
1391     delete[] templates;
1392     if (temp)
1393     {
1394         wxView *view = temp->CreateView(doc, flags);
1395         if (view)
1396             view->SetViewName(temp->GetViewName());
1397         return view;
1398     }
1399     else
1400         return (wxView *) NULL;
1401 }
1402
1403 // Not yet implemented
1404 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1405 {
1406 }
1407
1408 // Not yet implemented
1409 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1410 {
1411     return false;
1412 }
1413
1414 wxDocument *wxDocManager::GetCurrentDocument() const
1415 {
1416     wxView *view = GetCurrentView();
1417     if (view)
1418         return view->GetDocument();
1419     else
1420         return (wxDocument *) NULL;
1421 }
1422
1423 // Make a default name for a new document
1424 #if WXWIN_COMPATIBILITY_2_8
1425 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1426 {
1427     // we consider that this function can only be overridden by the user code,
1428     // not called by it as it only makes sense to call it internally, so we
1429     // don't bother to return anything from here
1430     return false;
1431 }
1432 #endif // WXWIN_COMPATIBILITY_2_8
1433
1434 wxString wxDocManager::MakeNewDocumentName()
1435 {
1436     wxString name;
1437
1438 #if WXWIN_COMPATIBILITY_2_8
1439     if ( !MakeDefaultName(name) )
1440 #endif // WXWIN_COMPATIBILITY_2_8
1441     {
1442         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1443         m_defaultDocumentNameCounter++;
1444     }
1445
1446     return name;
1447 }
1448
1449 // Make a frame title (override this to do something different)
1450 // If docName is empty, a document is not currently active.
1451 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1452 {
1453     wxString appName = wxTheApp->GetAppName();
1454     wxString title;
1455     if (!doc)
1456         title = appName;
1457     else
1458     {
1459         wxString docName = doc->GetUserReadableName();
1460         title = docName + wxString(_(" - ")) + appName;
1461     }
1462     return title;
1463 }
1464
1465
1466 // Not yet implemented
1467 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1468 {
1469     return (wxDocTemplate *) NULL;
1470 }
1471
1472 // File history management
1473 void wxDocManager::AddFileToHistory(const wxString& file)
1474 {
1475     if (m_fileHistory)
1476         m_fileHistory->AddFileToHistory(file);
1477 }
1478
1479 void wxDocManager::RemoveFileFromHistory(size_t i)
1480 {
1481     if (m_fileHistory)
1482         m_fileHistory->RemoveFileFromHistory(i);
1483 }
1484
1485 wxString wxDocManager::GetHistoryFile(size_t i) const
1486 {
1487     wxString histFile;
1488
1489     if (m_fileHistory)
1490         histFile = m_fileHistory->GetHistoryFile(i);
1491
1492     return histFile;
1493 }
1494
1495 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1496 {
1497     if (m_fileHistory)
1498         m_fileHistory->UseMenu(menu);
1499 }
1500
1501 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1502 {
1503     if (m_fileHistory)
1504         m_fileHistory->RemoveMenu(menu);
1505 }
1506
1507 #if wxUSE_CONFIG
1508 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1509 {
1510     if (m_fileHistory)
1511         m_fileHistory->Load(config);
1512 }
1513
1514 void wxDocManager::FileHistorySave(wxConfigBase& config)
1515 {
1516     if (m_fileHistory)
1517         m_fileHistory->Save(config);
1518 }
1519 #endif
1520
1521 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1522 {
1523     if (m_fileHistory)
1524         m_fileHistory->AddFilesToMenu(menu);
1525 }
1526
1527 void wxDocManager::FileHistoryAddFilesToMenu()
1528 {
1529     if (m_fileHistory)
1530         m_fileHistory->AddFilesToMenu();
1531 }
1532
1533 size_t wxDocManager::GetHistoryFilesCount() const
1534 {
1535     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1536 }
1537
1538
1539 // Find out the document template via matching in the document file format
1540 // against that of the template
1541 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1542 {
1543     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1544
1545     // Find the template which this extension corresponds to
1546     for (size_t i = 0; i < m_templates.GetCount(); i++)
1547     {
1548         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1549         if ( temp->FileMatchesTemplate(path) )
1550         {
1551             theTemplate = temp;
1552             break;
1553         }
1554     }
1555     return theTemplate;
1556 }
1557
1558 // Try to get a more suitable parent frame than the top window,
1559 // for selection dialogs. Otherwise you may get an unexpected
1560 // window being activated when a dialog is shown.
1561 static wxWindow* wxFindSuitableParent()
1562 {
1563     wxWindow* parent = wxTheApp->GetTopWindow();
1564
1565     wxWindow* focusWindow = wxWindow::FindFocus();
1566     if (focusWindow)
1567     {
1568         while (focusWindow &&
1569                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1570                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1571
1572             focusWindow = focusWindow->GetParent();
1573
1574         if (focusWindow)
1575             parent = focusWindow;
1576     }
1577     return parent;
1578 }
1579
1580 // Prompts user to open a file, using file specs in templates.
1581 // Must extend the file selector dialog or implement own; OR
1582 // match the extension to the template extension.
1583
1584 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1585 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1586                                                 int noTemplates,
1587 #else
1588                                                 int WXUNUSED(noTemplates),
1589 #endif
1590                                                 wxString& path,
1591                                                 long WXUNUSED(flags),
1592                                                 bool WXUNUSED(save))
1593 {
1594     // We can only have multiple filters in Windows and GTK
1595 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1596     wxString descrBuf;
1597
1598     int i;
1599     for (i = 0; i < noTemplates; i++)
1600     {
1601         if (templates[i]->IsVisible())
1602         {
1603             // add a '|' to separate this filter from the previous one
1604             if ( !descrBuf.empty() )
1605                 descrBuf << wxT('|');
1606
1607             descrBuf << templates[i]->GetDescription()
1608                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1609                 << templates[i]->GetFileFilter();
1610         }
1611     }
1612 #else
1613     wxString descrBuf = wxT("*.*");
1614 #endif
1615
1616     int FilterIndex = -1;
1617
1618     wxWindow* parent = wxFindSuitableParent();
1619
1620     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1621                                         m_lastDirectory,
1622                                         wxEmptyString,
1623                                         &FilterIndex,
1624                                         descrBuf,
1625                                         0,
1626                                         parent);
1627
1628     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1629     if (!pathTmp.empty())
1630     {
1631         if (!wxFileExists(pathTmp))
1632         {
1633             wxString msgTitle;
1634             if (!wxTheApp->GetAppName().empty())
1635                 msgTitle = wxTheApp->GetAppName();
1636             else
1637                 msgTitle = wxString(_("File error"));
1638
1639             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1640                 parent);
1641
1642             path = wxEmptyString;
1643             return (wxDocTemplate *) NULL;
1644         }
1645         m_lastDirectory = wxPathOnly(pathTmp);
1646
1647         path = pathTmp;
1648
1649         // first choose the template using the extension, if this fails (i.e.
1650         // wxFileSelectorEx() didn't fill it), then use the path
1651         if ( FilterIndex != -1 )
1652             theTemplate = templates[FilterIndex];
1653         if ( !theTemplate )
1654             theTemplate = FindTemplateForPath(path);
1655         if ( !theTemplate )
1656         {
1657             // Since we do not add files with non-default extensions to the FileHistory this
1658             // can only happen if the application changes the allowed templates in runtime.
1659             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1660                                 _("Open File"),
1661                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1662         }
1663     }
1664     else
1665     {
1666         path = wxEmptyString;
1667     }
1668
1669     return theTemplate;
1670 }
1671
1672 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1673                                                 int noTemplates, bool sort)
1674 {
1675     wxArrayString strings;
1676     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1677     int i;
1678     int n = 0;
1679
1680     for (i = 0; i < noTemplates; i++)
1681     {
1682         if (templates[i]->IsVisible())
1683         {
1684             int j;
1685             bool want = true;
1686             for (j = 0; j < n; j++)
1687             {
1688                 //filter out NOT unique documents + view combinations
1689                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1690                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1691                    )
1692                     want = false;
1693             }
1694
1695             if ( want )
1696             {
1697                 strings.Add(templates[i]->m_description);
1698
1699                 data[n] = templates[i];
1700                 n ++;
1701             }
1702         }
1703     }  // for
1704
1705     if (sort)
1706     {
1707         strings.Sort(); // ascending sort
1708         // Yes, this will be slow, but template lists
1709         // are typically short.
1710         int j;
1711         n = strings.Count();
1712         for (i = 0; i < n; i++)
1713         {
1714             for (j = 0; j < noTemplates; j++)
1715             {
1716                 if (strings[i] == templates[j]->m_description)
1717                     data[i] = templates[j];
1718             }
1719         }
1720     }
1721
1722     wxDocTemplate *theTemplate;
1723
1724     switch ( n )
1725     {
1726         case 0:
1727             // no visible templates, hence nothing to choose from
1728             theTemplate = NULL;
1729             break;
1730
1731         case 1:
1732             // don't propose the user to choose if he heas no choice
1733             theTemplate = data[0];
1734             break;
1735
1736         default:
1737             // propose the user to choose one of several
1738             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1739                           (
1740                             _("Select a document template"),
1741                             _("Templates"),
1742                             strings,
1743                             (void **)data,
1744                             wxFindSuitableParent()
1745                           );
1746     }
1747
1748     delete[] data;
1749
1750     return theTemplate;
1751 }
1752
1753 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1754                                             int noTemplates, bool sort)
1755 {
1756     wxArrayString strings;
1757     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1758     int i;
1759     int n = 0;
1760
1761     for (i = 0; i < noTemplates; i++)
1762     {
1763         wxDocTemplate *templ = templates[i];
1764         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1765         {
1766             int j;
1767             bool want = true;
1768             for (j = 0; j < n; j++)
1769             {
1770                 //filter out NOT unique views
1771                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1772                     want = false;
1773             }
1774
1775             if ( want )
1776             {
1777                 strings.Add(templ->m_viewTypeName);
1778                 data[n] = templ;
1779                 n ++;
1780             }
1781         }
1782     }
1783
1784     if (sort)
1785     {
1786         strings.Sort(); // ascending sort
1787         // Yes, this will be slow, but template lists
1788         // are typically short.
1789         int j;
1790         n = strings.Count();
1791         for (i = 0; i < n; i++)
1792         {
1793             for (j = 0; j < noTemplates; j++)
1794             {
1795                 if (strings[i] == templates[j]->m_viewTypeName)
1796                     data[i] = templates[j];
1797             }
1798         }
1799     }
1800
1801     wxDocTemplate *theTemplate;
1802
1803     // the same logic as above
1804     switch ( n )
1805     {
1806         case 0:
1807             theTemplate = (wxDocTemplate *)NULL;
1808             break;
1809
1810         case 1:
1811             theTemplate = data[0];
1812             break;
1813
1814         default:
1815             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1816                           (
1817                             _("Select a document view"),
1818                             _("Views"),
1819                             strings,
1820                             (void **)data,
1821                             wxFindSuitableParent()
1822                           );
1823
1824     }
1825
1826     delete[] data;
1827     return theTemplate;
1828 }
1829
1830 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1831 {
1832     if (!m_templates.Member(temp))
1833         m_templates.Append(temp);
1834 }
1835
1836 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1837 {
1838     m_templates.DeleteObject(temp);
1839 }
1840
1841 // Add and remove a document from the manager's list
1842 void wxDocManager::AddDocument(wxDocument *doc)
1843 {
1844     if (!m_docs.Member(doc))
1845         m_docs.Append(doc);
1846 }
1847
1848 void wxDocManager::RemoveDocument(wxDocument *doc)
1849 {
1850     m_docs.DeleteObject(doc);
1851 }
1852
1853 // Views or windows should inform the document manager
1854 // when a view is going in or out of focus
1855 void wxDocManager::ActivateView(wxView *view, bool activate)
1856 {
1857     if ( activate )
1858     {
1859         m_currentView = view;
1860     }
1861     else // deactivate
1862     {
1863         if ( m_currentView == view )
1864         {
1865             // don't keep stale pointer
1866             m_currentView = (wxView *) NULL;
1867         }
1868     }
1869 }
1870
1871 // ----------------------------------------------------------------------------
1872 // Default document child frame
1873 // ----------------------------------------------------------------------------
1874
1875 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1876     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1877     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1878 END_EVENT_TABLE()
1879
1880 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1881                                  wxView *view,
1882                                  wxFrame *frame,
1883                                  wxWindowID id,
1884                                  const wxString& title,
1885                                  const wxPoint& pos,
1886                                  const wxSize& size,
1887                                  long style,
1888                                  const wxString& name)
1889                : wxFrame(frame, id, title, pos, size, style, name)
1890 {
1891     m_childDocument = doc;
1892     m_childView = view;
1893     if (view)
1894         view->SetFrame(this);
1895 }
1896
1897 // Extend event processing to search the view's event table
1898 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1899 {
1900     if (m_childView)
1901         m_childView->Activate(true);
1902
1903     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1904     {
1905         // Only hand up to the parent if it's a menu command
1906         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1907             return wxEvtHandler::ProcessEvent(event);
1908         else
1909             return true;
1910     }
1911     else
1912         return true;
1913 }
1914
1915 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1916 {
1917     wxFrame::OnActivate(event);
1918
1919     if (m_childView)
1920         m_childView->Activate(event.GetActive());
1921 }
1922
1923 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1924 {
1925     if (m_childView)
1926     {
1927         bool ans = event.CanVeto()
1928                     ? m_childView->Close(false) // false means don't delete associated window
1929                     : true; // Must delete.
1930
1931         if (ans)
1932         {
1933             m_childView->Activate(false);
1934             delete m_childView;
1935             m_childView = (wxView *) NULL;
1936             m_childDocument = (wxDocument *) NULL;
1937
1938             this->Destroy();
1939         }
1940         else
1941             event.Veto();
1942     }
1943     else
1944         event.Veto();
1945 }
1946
1947 // ----------------------------------------------------------------------------
1948 // Default parent frame
1949 // ----------------------------------------------------------------------------
1950
1951 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1952     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1953     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1954     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1955 END_EVENT_TABLE()
1956
1957 wxDocParentFrame::wxDocParentFrame()
1958 {
1959     m_docManager = NULL;
1960 }
1961
1962 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1963                                    wxFrame *frame,
1964                                    wxWindowID id,
1965                                    const wxString& title,
1966                                    const wxPoint& pos,
1967                                    const wxSize& size,
1968                                    long style,
1969                                    const wxString& name)
1970                 : wxFrame(frame, id, title, pos, size, style, name)
1971 {
1972     m_docManager = manager;
1973 }
1974
1975 bool wxDocParentFrame::Create(wxDocManager *manager,
1976                               wxFrame *frame,
1977                               wxWindowID id,
1978                               const wxString& title,
1979                               const wxPoint& pos,
1980                               const wxSize& size,
1981                               long style,
1982                               const wxString& name)
1983 {
1984     m_docManager = manager;
1985     return base_type::Create(frame, id, title, pos, size, style, name);
1986 }
1987
1988 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1989 {
1990     Close();
1991 }
1992
1993 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1994 {
1995     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1996     wxString filename(m_docManager->GetHistoryFile(n));
1997     if ( !filename.empty() )
1998     {
1999         // verify that the file exists before doing anything else
2000         if ( wxFile::Exists(filename) )
2001         {
2002             // try to open it
2003             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
2004             {
2005                 // remove the file from the MRU list. The user should already be notified.
2006                 m_docManager->RemoveFileFromHistory(n);
2007
2008                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
2009                        filename.c_str());
2010             }
2011         }
2012         else
2013         {
2014             // remove the bogus filename from the MRU list and notify the user
2015             // about it
2016             m_docManager->RemoveFileFromHistory(n);
2017
2018             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
2019                        filename.c_str());
2020         }
2021     }
2022 }
2023
2024 // Extend event processing to search the view's event table
2025 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
2026 {
2027     // Try the document manager, then do default processing
2028     if (!m_docManager || !m_docManager->ProcessEvent(event))
2029         return wxEvtHandler::ProcessEvent(event);
2030     else
2031         return true;
2032 }
2033
2034 // Define the behaviour for the frame closing
2035 // - must delete all frames except for the main one.
2036 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
2037 {
2038     if (m_docManager->Clear(!event.CanVeto()))
2039     {
2040         this->Destroy();
2041     }
2042     else
2043         event.Veto();
2044 }
2045
2046 #if wxUSE_PRINTING_ARCHITECTURE
2047
2048 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
2049              : wxPrintout(title)
2050 {
2051     m_printoutView = view;
2052 }
2053
2054 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
2055 {
2056     wxDC *dc = GetDC();
2057
2058     // Get the logical pixels per inch of screen and printer
2059     int ppiScreenX, ppiScreenY;
2060     GetPPIScreen(&ppiScreenX, &ppiScreenY);
2061     wxUnusedVar(ppiScreenY);
2062     int ppiPrinterX, ppiPrinterY;
2063     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
2064     wxUnusedVar(ppiPrinterY);
2065
2066     // This scales the DC so that the printout roughly represents the
2067     // the screen scaling. The text point size _should_ be the right size
2068     // but in fact is too small for some reason. This is a detail that will
2069     // need to be addressed at some point but can be fudged for the
2070     // moment.
2071     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2072
2073     // Now we have to check in case our real page size is reduced
2074     // (e.g. because we're drawing to a print preview memory DC)
2075     int pageWidth, pageHeight;
2076     int w, h;
2077     dc->GetSize(&w, &h);
2078     GetPageSizePixels(&pageWidth, &pageHeight);
2079     wxUnusedVar(pageHeight);
2080
2081     // If printer pageWidth == current DC width, then this doesn't
2082     // change. But w might be the preview bitmap width, so scale down.
2083     float overallScale = scale * (float)(w/(float)pageWidth);
2084     dc->SetUserScale(overallScale, overallScale);
2085
2086     if (m_printoutView)
2087     {
2088         m_printoutView->OnDraw(dc);
2089     }
2090     return true;
2091 }
2092
2093 bool wxDocPrintout::HasPage(int pageNum)
2094 {
2095     return (pageNum == 1);
2096 }
2097
2098 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2099 {
2100     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2101         return false;
2102
2103     return true;
2104 }
2105
2106 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
2107 {
2108     *minPage = 1;
2109     *maxPage = 1;
2110     *selPageFrom = 1;
2111     *selPageTo = 1;
2112 }
2113
2114 #endif // wxUSE_PRINTING_ARCHITECTURE
2115
2116 // ----------------------------------------------------------------------------
2117 // File history processor
2118 // ----------------------------------------------------------------------------
2119
2120 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2121 {
2122     m_fileMaxFiles = maxFiles;
2123     m_idBase = idBase;
2124 }
2125
2126 wxFileHistory::~wxFileHistory()
2127 {
2128 }
2129
2130 void wxFileHistory::AddFileToHistory(const wxString& file)
2131 {
2132     wxFileName fn(file);
2133     size_t i;
2134
2135     // Check we don't already have this file
2136     for (i = 0; i < m_fileHistory.GetCount(); i++)
2137     {
2138         // we need to do a comparison using wxFileNames because it knows
2139         // how to exactly compare files on the different platforms
2140         // (e.g. handle case [in]sensitive filesystems)
2141         if ( fn == wxFileName(m_fileHistory[i]) )
2142         {
2143             // we do have it, move it to the top of the history
2144             RemoveFileFromHistory (i);
2145             AddFileToHistory (file);
2146             return;
2147         }
2148     }
2149
2150     // if we already have a full history, delete the one at the end
2151     if ( m_fileMaxFiles == m_fileHistory.GetCount() )
2152     {
2153         RemoveFileFromHistory (m_fileHistory.GetCount() - 1);
2154         AddFileToHistory (file);
2155         return;
2156     }
2157
2158     // Add to the project file history:
2159     // Move existing files (if any) down so we can insert file at beginning.
2160     if (m_fileHistory.GetCount() < m_fileMaxFiles)
2161     {
2162         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2163         while (node)
2164         {
2165             wxMenu* menu = (wxMenu*) node->GetData();
2166             if ( m_fileHistory.IsEmpty() && menu->GetMenuItemCount() )
2167             {
2168                 menu->AppendSeparator();
2169             }
2170             menu->Append(m_idBase+m_fileHistory.GetCount(), _("[EMPTY]"));
2171             node = node->GetNext();
2172         }
2173     }
2174
2175     m_fileHistory.Insert(file, 0);
2176
2177     // this is the directory of the last opened file
2178     wxString pathCurrent;
2179     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2180     for (i = 0; i < m_fileHistory.GetCount(); i++)
2181         {
2182             // if in same directory just show the filename; otherwise the full
2183             // path
2184             wxString pathInMenu, path, filename, ext;
2185             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2186             if ( path == pathCurrent )
2187             {
2188                 pathInMenu = filename;
2189                 if ( !ext.empty() )
2190                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2191             }
2192             else
2193             {
2194                 // absolute path; could also set relative path
2195                 pathInMenu = m_fileHistory[i];
2196             }
2197
2198             // we need to quote '&' characters which are used for mnemonics
2199             pathInMenu.Replace(_T("&"), _T("&&"));
2200
2201             wxString buf;
2202             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2203
2204             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2205             while (node)
2206             {
2207                 wxMenu* menu = (wxMenu*) node->GetData();
2208                 menu->SetLabel(m_idBase + i, buf);
2209                 node = node->GetNext();
2210             }
2211         }
2212 }
2213
2214 void wxFileHistory::RemoveFileFromHistory(size_t i)
2215 {
2216     wxCHECK_RET( i < m_fileHistory.GetCount(),
2217                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2218
2219     // delete the element from the array
2220     m_fileHistory.RemoveAt(i);
2221
2222     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2223     while ( node )
2224     {
2225         wxMenu* menu = (wxMenu*) node->GetData();
2226
2227         // shuffle filenames up
2228         wxString buf;
2229         for ( size_t j = i; j < m_fileHistory.GetCount(); j++ )
2230         {
2231             buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j].c_str());
2232             menu->SetLabel(m_idBase + j, buf);
2233         }
2234
2235         node = node->GetNext();
2236
2237         // delete the last menu item which is unused now
2238         wxWindowID lastItemId = m_idBase + wx_truncate_cast(wxWindowID, m_fileHistory.GetCount());
2239         if (menu->FindItem(lastItemId))
2240         {
2241             menu->Delete(lastItemId);
2242         }
2243
2244         // delete the last separator too if no more files are left
2245         if ( m_fileHistory.GetCount() == 0 )
2246         {
2247             wxMenuItemList::compatibility_iterator nodeLast = menu->GetMenuItems().GetLast();
2248             if ( nodeLast )
2249             {
2250                 wxMenuItem *menuItem = nodeLast->GetData();
2251                 if ( menuItem->IsSeparator() )
2252                 {
2253                     menu->Delete(menuItem);
2254                 }
2255                 //else: should we search backwards for the last separator?
2256             }
2257             //else: menu is empty somehow
2258         }
2259     }
2260 }
2261
2262 void wxFileHistory::UseMenu(wxMenu *menu)
2263 {
2264     if (!m_fileMenus.Member(menu))
2265         m_fileMenus.Append(menu);
2266 }
2267
2268 void wxFileHistory::RemoveMenu(wxMenu *menu)
2269 {
2270     m_fileMenus.DeleteObject(menu);
2271 }
2272
2273 #if wxUSE_CONFIG
2274 void wxFileHistory::Load(wxConfigBase& config)
2275 {
2276     m_fileHistory.Clear();
2277
2278     wxString buf;
2279     buf.Printf(wxT("file%d"), 1);
2280
2281     wxString historyFile;
2282     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2283            config.Read(buf, &historyFile) && !historyFile.empty())
2284     {
2285         m_fileHistory.Add(historyFile);
2286
2287         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2288         historyFile = wxEmptyString;
2289     }
2290
2291     AddFilesToMenu();
2292 }
2293
2294 void wxFileHistory::Save(wxConfigBase& config)
2295 {
2296     size_t i;
2297     for (i = 0; i < m_fileMaxFiles; i++)
2298     {
2299         wxString buf;
2300         buf.Printf(wxT("file%d"), (int)i+1);
2301         if (i < m_fileHistory.GetCount())
2302             config.Write(buf, wxString(m_fileHistory[i]));
2303         else
2304             config.Write(buf, wxEmptyString);
2305     }
2306 }
2307 #endif // wxUSE_CONFIG
2308
2309 void wxFileHistory::AddFilesToMenu()
2310 {
2311     if (m_fileHistory.GetCount() > 0)
2312     {
2313         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2314         while (node)
2315         {
2316             wxMenu* menu = (wxMenu*) node->GetData();
2317             if (menu->GetMenuItemCount())
2318             {
2319                 menu->AppendSeparator();
2320             }
2321
2322             size_t i;
2323             for (i = 0; i < m_fileHistory.GetCount(); i++)
2324                 {
2325                     wxString buf;
2326                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i].c_str());
2327                     menu->Append(m_idBase+i, buf);
2328                 }
2329             node = node->GetNext();
2330         }
2331     }
2332 }
2333
2334 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2335 {
2336     if (m_fileHistory.GetCount() > 0)
2337     {
2338         if (menu->GetMenuItemCount())
2339         {
2340             menu->AppendSeparator();
2341         }
2342
2343         size_t i;
2344         for (i = 0; i < m_fileHistory.GetCount(); i++)
2345             {
2346                 wxString buf;
2347             buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i].c_str());
2348                 menu->Append(m_idBase+i, buf);
2349             }
2350         }
2351 }
2352
2353 // ----------------------------------------------------------------------------
2354 // Permits compatibility with existing file formats and functions that
2355 // manipulate files directly
2356 // ----------------------------------------------------------------------------
2357
2358 #if wxUSE_STD_IOSTREAM
2359
2360 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2361 {
2362     wxFFile file(filename, _T("rb"));
2363     if ( !file.IsOpened() )
2364         return false;
2365
2366     char buf[4096];
2367
2368     size_t nRead;
2369     do
2370     {
2371         nRead = file.Read(buf, WXSIZEOF(buf));
2372         if ( file.Error() )
2373             return false;
2374
2375         stream.write(buf, nRead);
2376         if ( !stream )
2377             return false;
2378     }
2379     while ( !file.Eof() );
2380
2381     return true;
2382 }
2383
2384 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2385 {
2386     wxFFile file(filename, _T("wb"));
2387     if ( !file.IsOpened() )
2388         return false;
2389
2390     char buf[4096];
2391     do
2392     {
2393         stream.read(buf, WXSIZEOF(buf));
2394         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2395         {
2396             if ( !file.Write(buf, stream.gcount()) )
2397                 return false;
2398         }
2399     }
2400     while ( !stream.eof() );
2401
2402     return true;
2403 }
2404
2405 #else // !wxUSE_STD_IOSTREAM
2406
2407 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2408 {
2409     wxFFile file(filename, _T("rb"));
2410     if ( !file.IsOpened() )
2411         return false;
2412
2413     char buf[4096];
2414
2415     size_t nRead;
2416     do
2417     {
2418         nRead = file.Read(buf, WXSIZEOF(buf));
2419         if ( file.Error() )
2420             return false;
2421
2422         stream.Write(buf, nRead);
2423         if ( !stream )
2424             return false;
2425     }
2426     while ( !file.Eof() );
2427
2428     return true;
2429 }
2430
2431 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2432 {
2433     wxFFile file(filename, _T("wb"));
2434     if ( !file.IsOpened() )
2435         return false;
2436
2437     char buf[4096];
2438     do
2439     {
2440         stream.Read(buf, WXSIZEOF(buf));
2441
2442         const size_t nRead = stream.LastRead();
2443         if ( !nRead || !file.Write(buf, nRead) )
2444             return false;
2445     }
2446     while ( !stream.Eof() );
2447
2448     return true;
2449 }
2450
2451 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2452
2453 #endif // wxUSE_DOC_VIEW_ARCHITECTURE