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 #ifndef WX_PRECOMP
  30     #include "wx/list.h"
  31     #include "wx/string.h"
  32     #include "wx/utils.h"
  33     #include "wx/app.h"
  34     #include "wx/dc.h"
  35     #include "wx/dialog.h"
  36     #include "wx/menu.h"
  37     #include "wx/filedlg.h"
  38     #include "wx/intl.h"
  39     #include "wx/log.h"
  40 #endif
  41
  42 #include "wx/ffile.h"
  43
  44 #ifdef __WXMAC__
  45     #include "wx/filename.h"
  46 #endif
  47
  48 #ifdef __WXGTK__
  49     #include "wx/mdi.h"
  50 #endif
  51
  52 #if wxUSE_PRINTING_ARCHITECTURE
  53     #include "wx/prntbase.h"
  54     #include "wx/printdlg.h"
  55 #endif
  56
  57 #include "wx/msgdlg.h"
  58 #include "wx/choicdlg.h"
  59 #include "wx/docview.h"
  60 #include "wx/confbase.h"
  61 #include "wx/file.h"
  62 #include "wx/cmdproc.h"
  63 #include "wx/tokenzr.h"
  64
  65 #include <stdio.h>
  66 #include <string.h>
  67
  68 #if wxUSE_STD_IOSTREAM
  69     #include "wx/ioswrap.h"
  70     #if wxUSE_IOSTREAMH
  71         #include <fstream.h>
  72     #else
  73         #include <fstream>
  74     #endif
  75 #else
  76     #include "wx/wfstream.h"
  77 #endif
  78
  79 // ----------------------------------------------------------------------------
  80 // wxWidgets macros
  81 // ----------------------------------------------------------------------------
  82
  83 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  84 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  85 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  86 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  87 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  88 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  89
  90 #if wxUSE_PRINTING_ARCHITECTURE
  91     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  92 #endif
  93
  94 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  95
  96 // ----------------------------------------------------------------------------
  97 // function prototypes
  98 // ----------------------------------------------------------------------------
  99
 100 static inline wxString FindExtension(const wxChar *path);
 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 wxChar *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     wxString name;
 247     GetDocumentManager()->MakeDefaultName(name);
 248     SetTitle(name);
 249     SetFilename(name, true);
 250
 251     return true;
 252 }
 253
 254 bool wxDocument::Save()
 255 {
 256     if (!IsModified() && m_savedYet)
 257         return true;
 258
 259     if ( m_documentFile.empty() || !m_savedYet )
 260         return SaveAs();
 261
 262     return OnSaveDocument(m_documentFile);
 263 }
 264
 265 bool wxDocument::SaveAs()
 266 {
 267     wxDocTemplate *docTemplate = GetDocumentTemplate();
 268     if (!docTemplate)
 269         return false;
 270
 271 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 272     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 273
 274     // Now see if there are some other template with identical view and document
 275     // classes, whose filters may also be used.
 276
 277     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 278     {
 279         wxList::compatibility_iterator node = wxDocManager::GetDocumentManager()->GetTemplates().GetFirst();
 280         while (node)
 281         {
 282             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 283
 284             if (t->IsVisible() && t != docTemplate &&
 285                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 286                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 287             {
 288                 // add a '|' to separate this filter from the previous one
 289                 if ( !filter.empty() )
 290                     filter << wxT('|');
 291
 292                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 293                        << t->GetFileFilter();
 294             }
 295
 296             node = node->GetNext();
 297         }
 298     }
 299 #else
 300     wxString filter = docTemplate->GetFileFilter() ;
 301 #endif
 302     wxString tmp = wxFileSelector(_("Save as"),
 303             docTemplate->GetDirectory(),
 304             wxFileNameFromPath(GetFilename()),
 305             docTemplate->GetDefaultExtension(),
 306             filter,
 307             wxSAVE | wxOVERWRITE_PROMPT,
 308             GetDocumentWindow());
 309
 310     if (tmp.empty())
 311         return false;
 312
 313     wxString fileName(tmp);
 314     wxString path, name, ext;
 315     wxSplitPath(fileName, & path, & name, & ext);
 316
 317     if (ext.empty())
 318     {
 319         fileName += wxT(".");
 320         fileName += docTemplate->GetDefaultExtension();
 321     }
 322
 323     SetFilename(fileName);
 324     SetTitle(wxFileNameFromPath(fileName));
 325
 326     // Notify the views that the filename has changed
 327     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 328     while (node)
 329     {
 330         wxView *view = (wxView *)node->GetData();
 331         view->OnChangeFilename();
 332         node = node->GetNext();
 333     }
 334
 335     // Files that were not saved correctly are not added to the FileHistory.
 336     if (!OnSaveDocument(m_documentFile))
 337         return false;
 338
 339    // A file that doesn't use the default extension of its document template cannot be opened
 340    // via the FileHistory, so we do not add it.
 341    if (docTemplate->FileMatchesTemplate(fileName))
 342    {
 343        GetDocumentManager()->AddFileToHistory(fileName);
 344    }
 345    else
 346    {
 347        // The user will probably not be able to open the file again, so
 348        // we could warn about the wrong file-extension here.
 349    }
 350    return true;
 351 }
 352
 353 bool wxDocument::OnSaveDocument(const wxString& file)
 354 {
 355     if ( !file )
 356         return false;
 357
 358     if ( !DoSaveDocument(file) )
 359         return false;
 360
 361     Modify(false);
 362     SetFilename(file);
 363     SetDocumentSaved(true);
 364 #ifdef __WXMAC__
 365     wxFileName fn(file) ;
 366     fn.MacSetDefaultTypeAndCreator() ;
 367 #endif
 368     return true;
 369 }
 370
 371 bool wxDocument::OnOpenDocument(const wxString& file)
 372 {
 373     if (!OnSaveModified())
 374         return false;
 375
 376     if ( !DoOpenDocument(file) )
 377         return false;
 378
 379     SetFilename(file, true);
 380     Modify(false);
 381     m_savedYet = true;
 382
 383     UpdateAllViews();
 384
 385     return true;
 386 }
 387
 388 #if wxUSE_STD_IOSTREAM
 389 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 390 #else
 391 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 392 #endif
 393 {
 394     return stream;
 395 }
 396
 397 #if wxUSE_STD_IOSTREAM
 398 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 399 #else
 400 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 401 #endif
 402 {
 403     return stream;
 404 }
 405
 406 bool wxDocument::Revert()
 407 {
 408     return false;
 409 }
 410
 411
 412 // Get title, or filename if no title, else unnamed
 413 bool wxDocument::GetPrintableName(wxString& buf) const
 414 {
 415     if (!m_documentTitle.empty())
 416     {
 417         buf = m_documentTitle;
 418         return true;
 419     }
 420     else if (!m_documentFile.empty())
 421     {
 422         buf = wxFileNameFromPath(m_documentFile);
 423         return true;
 424     }
 425     else
 426     {
 427         buf = _("unnamed");
 428         return true;
 429     }
 430 }
 431
 432 wxWindow *wxDocument::GetDocumentWindow() const
 433 {
 434     wxView *view = GetFirstView();
 435     if (view)
 436         return view->GetFrame();
 437     else
 438         return wxTheApp->GetTopWindow();
 439 }
 440
 441 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 442 {
 443     return new wxCommandProcessor;
 444 }
 445
 446 // true if safe to close
 447 bool wxDocument::OnSaveModified()
 448 {
 449     if (IsModified())
 450     {
 451         wxString title;
 452         GetPrintableName(title);
 453
 454         wxString msgTitle;
 455         if (!wxTheApp->GetAppName().empty())
 456             msgTitle = wxTheApp->GetAppName();
 457         else
 458             msgTitle = wxString(_("Warning"));
 459
 460         wxString prompt;
 461         prompt.Printf(_("Do you want to save changes to document %s?"),
 462                 (const wxChar *)title);
 463         int res = wxMessageBox(prompt, msgTitle,
 464                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 465                 GetDocumentWindow());
 466         if (res == wxNO)
 467         {
 468             Modify(false);
 469             return true;
 470         }
 471         else if (res == wxYES)
 472             return Save();
 473         else if (res == wxCANCEL)
 474             return false;
 475     }
 476     return true;
 477 }
 478
 479 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 480 {
 481     return true;
 482 }
 483
 484 bool wxDocument::AddView(wxView *view)
 485 {
 486     if (!m_documentViews.Member(view))
 487     {
 488         m_documentViews.Append(view);
 489         OnChangedViewList();
 490     }
 491     return true;
 492 }
 493
 494 bool wxDocument::RemoveView(wxView *view)
 495 {
 496     (void)m_documentViews.DeleteObject(view);
 497     OnChangedViewList();
 498     return true;
 499 }
 500
 501 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 502 {
 503     if (GetDocumentTemplate()->CreateView(this, flags))
 504         return true;
 505     else
 506         return false;
 507 }
 508
 509 // Called after a view is added or removed.
 510 // The default implementation deletes the document if
 511 // there are no more views.
 512 void wxDocument::OnChangedViewList()
 513 {
 514     if (m_documentViews.GetCount() == 0)
 515     {
 516         if (OnSaveModified())
 517         {
 518             delete this;
 519         }
 520     }
 521 }
 522
 523 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 524 {
 525     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 526     while (node)
 527     {
 528         wxView *view = (wxView *)node->GetData();
 529         if (view != sender)
 530             view->OnUpdate(sender, hint);
 531         node = node->GetNext();
 532     }
 533 }
 534
 535 void wxDocument::NotifyClosing()
 536 {
 537     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 538     while (node)
 539     {
 540         wxView *view = (wxView *)node->GetData();
 541         view->OnClosingDocument();
 542         node = node->GetNext();
 543     }
 544 }
 545
 546 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 547 {
 548     m_documentFile = filename;
 549     if ( notifyViews )
 550     {
 551         // Notify the views that the filename has changed
 552         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 553         while (node)
 554         {
 555             wxView *view = (wxView *)node->GetData();
 556             view->OnChangeFilename();
 557             node = node->GetNext();
 558         }
 559     }
 560 }
 561
 562 bool wxDocument::DoSaveDocument(const wxString& file)
 563 {
 564     wxString msgTitle;
 565     if (!wxTheApp->GetAppName().empty())
 566         msgTitle = wxTheApp->GetAppName();
 567     else
 568         msgTitle = wxString(_("File error"));
 569
 570 #if wxUSE_STD_IOSTREAM
 571     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 572     if (store.fail() || store.bad())
 573 #else
 574     wxFileOutputStream store(file);
 575     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 576 #endif
 577     {
 578         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 579                            GetDocumentWindow());
 580         // Saving error
 581         return false;
 582     }
 583     if (!SaveObject(store))
 584     {
 585         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 586                            GetDocumentWindow());
 587         // Saving error
 588         return false;
 589     }
 590
 591     return true;
 592 }
 593
 594 bool wxDocument::DoOpenDocument(const wxString& file)
 595 {
 596 #if wxUSE_STD_IOSTREAM
 597     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 598     if (!store.fail() && !store.bad())
 599 #else
 600     wxFileInputStream store(file);
 601     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 602 #endif
 603     {
 604 #if wxUSE_STD_IOSTREAM
 605         LoadObject(store);
 606         if ( !!store || store.eof() )
 607 #else
 608         int res = LoadObject(store).GetLastError();
 609         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 610 #endif
 611             return true;
 612     }
 613
 614     wxLogError(_("Sorry, could not open this file."));
 615     return false;
 616 }
 617
 618
 619 // ----------------------------------------------------------------------------
 620 // Document view
 621 // ----------------------------------------------------------------------------
 622
 623 wxView::wxView()
 624 {
 625     m_viewDocument = (wxDocument*) NULL;
 626
 627     m_viewFrame = (wxFrame *) NULL;
 628 }
 629
 630 wxView::~wxView()
 631 {
 632     GetDocumentManager()->ActivateView(this, false);
 633     m_viewDocument->RemoveView(this);
 634 }
 635
 636 // Extend event processing to search the document's event table
 637 bool wxView::ProcessEvent(wxEvent& event)
 638 {
 639     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 640         return wxEvtHandler::ProcessEvent(event);
 641
 642     return true;
 643 }
 644
 645 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 646 {
 647 }
 648
 649 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 650 {
 651     OnDraw(dc);
 652 }
 653
 654 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 655 {
 656 }
 657
 658 void wxView::OnChangeFilename()
 659 {
 660     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 661     // generic MDI implementation so use SetLabel rather than SetTitle.
 662     // It should cause SetTitle() for top level windows.
 663     wxWindow *win = GetFrame();
 664     if (!win) return;
 665
 666     wxDocument *doc = GetDocument();
 667     if (!doc) return;
 668
 669     wxString name;
 670     doc->GetPrintableName(name);
 671     win->SetLabel(name);
 672 }
 673
 674 void wxView::SetDocument(wxDocument *doc)
 675 {
 676     m_viewDocument = doc;
 677     if (doc)
 678         doc->AddView(this);
 679 }
 680
 681 bool wxView::Close(bool deleteWindow)
 682 {
 683     if (OnClose(deleteWindow))
 684         return true;
 685     else
 686         return false;
 687 }
 688
 689 void wxView::Activate(bool activate)
 690 {
 691     if (GetDocument() && GetDocumentManager())
 692     {
 693         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 694         GetDocumentManager()->ActivateView(this, activate);
 695     }
 696 }
 697
 698 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 699 {
 700     return GetDocument() ? GetDocument()->Close() : true;
 701 }
 702
 703 #if wxUSE_PRINTING_ARCHITECTURE
 704 wxPrintout *wxView::OnCreatePrintout()
 705 {
 706     return new wxDocPrintout(this);
 707 }
 708 #endif // wxUSE_PRINTING_ARCHITECTURE
 709
 710 // ----------------------------------------------------------------------------
 711 // wxDocTemplate
 712 // ----------------------------------------------------------------------------
 713
 714 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 715                              const wxString& descr,
 716                              const wxString& filter,
 717                              const wxString& dir,
 718                              const wxString& ext,
 719                              const wxString& docTypeName,
 720                              const wxString& viewTypeName,
 721                              wxClassInfo *docClassInfo,
 722                              wxClassInfo *viewClassInfo,
 723                              long flags)
 724 {
 725     m_documentManager = manager;
 726     m_description = descr;
 727     m_directory = dir;
 728     m_defaultExt = ext;
 729     m_fileFilter = filter;
 730     m_flags = flags;
 731     m_docTypeName = docTypeName;
 732     m_viewTypeName = viewTypeName;
 733     m_documentManager->AssociateTemplate(this);
 734
 735     m_docClassInfo = docClassInfo;
 736     m_viewClassInfo = viewClassInfo;
 737 }
 738
 739 wxDocTemplate::~wxDocTemplate()
 740 {
 741     m_documentManager->DisassociateTemplate(this);
 742 }
 743
 744 // Tries to dynamically construct an object of the right class.
 745 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 746 {
 747     wxDocument *doc = DoCreateDocument();
 748     if ( doc == NULL )
 749         return (wxDocument *) NULL;
 750
 751     if (InitDocument(doc, path, flags))
 752     {
 753         return doc;
 754     }
 755     else
 756     {
 757         return (wxDocument *) NULL;
 758     }
 759 }
 760
 761 bool wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 762 {
 763     doc->SetFilename(path);
 764     doc->SetDocumentTemplate(this);
 765     GetDocumentManager()->AddDocument(doc);
 766     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 767
 768     if (doc->OnCreate(path, flags))
 769         return true;
 770     else
 771     {
 772         if (GetDocumentManager()->GetDocuments().Member(doc))
 773             doc->DeleteAllViews();
 774         return false;
 775     }
 776 }
 777
 778 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 779 {
 780     wxView *view = DoCreateView();
 781     if ( view == NULL )
 782         return (wxView *) NULL;
 783
 784     view->SetDocument(doc);
 785     if (view->OnCreate(doc, flags))
 786     {
 787         return view;
 788     }
 789     else
 790     {
 791         delete view;
 792         return (wxView *) NULL;
 793     }
 794 }
 795
 796 // The default (very primitive) format detection: check is the extension is
 797 // that of the template
 798 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 799 {
 800     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 801     wxString anything = wxT ("*");
 802     while (parser.HasMoreTokens())
 803     {
 804         wxString filter = parser.GetNextToken();
 805         wxString filterExt = FindExtension (filter);
 806         if ( filter.IsSameAs (anything)    ||
 807              filterExt.IsSameAs (anything) ||
 808              filterExt.IsSameAs (FindExtension (path)) )
 809             return true;
 810     }
 811     return GetDefaultExtension().IsSameAs(FindExtension(path));
 812 }
 813
 814 wxDocument *wxDocTemplate::DoCreateDocument()
 815 {
 816     if (!m_docClassInfo)
 817         return (wxDocument *) NULL;
 818
 819     return (wxDocument *)m_docClassInfo->CreateObject();
 820 }
 821
 822 wxView *wxDocTemplate::DoCreateView()
 823 {
 824     if (!m_viewClassInfo)
 825         return (wxView *) NULL;
 826
 827     return (wxView *)m_viewClassInfo->CreateObject();
 828 }
 829
 830 // ----------------------------------------------------------------------------
 831 // wxDocManager
 832 // ----------------------------------------------------------------------------
 833
 834 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 835     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 836     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 837     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 838     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 839     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 840     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 841     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 842     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 843     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 844
 845     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 846     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 847     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 848     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 849     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 850     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 851     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 852     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 853     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 854
 855 #if wxUSE_PRINTING_ARCHITECTURE
 856     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 857     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 858
 859     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 860     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 861 #endif
 862 END_EVENT_TABLE()
 863
 864 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 865
 866 wxDocManager::wxDocManager(long flags, bool initialize)
 867 {
 868     m_defaultDocumentNameCounter = 1;
 869     m_flags = flags;
 870     m_currentView = (wxView *) NULL;
 871     m_maxDocsOpen = 10000;
 872     m_fileHistory = (wxFileHistory *) NULL;
 873     if (initialize)
 874         Initialize();
 875     sm_docManager = this;
 876 }
 877
 878 wxDocManager::~wxDocManager()
 879 {
 880     Clear();
 881     if (m_fileHistory)
 882         delete m_fileHistory;
 883     sm_docManager = (wxDocManager*) NULL;
 884 }
 885
 886 // closes the specified document
 887 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 888 {
 889     if (doc->Close() || force)
 890     {
 891         // Implicitly deletes the document when
 892         // the last view is deleted
 893         doc->DeleteAllViews();
 894
 895         // Check we're really deleted
 896         if (m_docs.Member(doc))
 897             delete doc;
 898
 899         return true;
 900     }
 901     return false;
 902 }
 903
 904 bool wxDocManager::CloseDocuments(bool force)
 905 {
 906     wxList::compatibility_iterator node = m_docs.GetFirst();
 907     while (node)
 908     {
 909         wxDocument *doc = (wxDocument *)node->GetData();
 910         wxList::compatibility_iterator next = node->GetNext();
 911
 912         if (!CloseDocument(doc, force))
 913             return false;
 914
 915         // This assumes that documents are not connected in
 916         // any way, i.e. deleting one document does NOT
 917         // delete another.
 918         node = next;
 919     }
 920     return true;
 921 }
 922
 923 bool wxDocManager::Clear(bool force)
 924 {
 925     if (!CloseDocuments(force))
 926         return false;
 927
 928     m_currentView = NULL;
 929
 930     wxList::compatibility_iterator node = m_templates.GetFirst();
 931     while (node)
 932     {
 933         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 934         wxList::compatibility_iterator next = node->GetNext();
 935         delete templ;
 936         node = next;
 937     }
 938     return true;
 939 }
 940
 941 bool wxDocManager::Initialize()
 942 {
 943     m_fileHistory = OnCreateFileHistory();
 944     return true;
 945 }
 946
 947 wxFileHistory *wxDocManager::OnCreateFileHistory()
 948 {
 949     return new wxFileHistory;
 950 }
 951
 952 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 953 {
 954     wxDocument *doc = GetCurrentDocument();
 955     if (!doc)
 956         return;
 957     if (doc->Close())
 958     {
 959         doc->DeleteAllViews();
 960         if (m_docs.Member(doc))
 961             delete doc;
 962     }
 963 }
 964
 965 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 966 {
 967     CloseDocuments(false);
 968 }
 969
 970 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 971 {
 972     CreateDocument( wxEmptyString, wxDOC_NEW );
 973 }
 974
 975 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 976 {
 977     if ( !CreateDocument( wxEmptyString, 0) )
 978     {
 979         OnOpenFileFailure();
 980     }
 981 }
 982
 983 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 984 {
 985     wxDocument *doc = GetCurrentDocument();
 986     if (!doc)
 987         return;
 988     doc->Revert();
 989 }
 990
 991 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 992 {
 993     wxDocument *doc = GetCurrentDocument();
 994     if (!doc)
 995         return;
 996     doc->Save();
 997 }
 998
 999 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1000 {
1001     wxDocument *doc = GetCurrentDocument();
1002     if (!doc)
1003         return;
1004     doc->SaveAs();
1005 }
1006
1007 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1008 {
1009 #if wxUSE_PRINTING_ARCHITECTURE
1010     wxView *view = GetCurrentView();
1011     if (!view)
1012         return;
1013
1014     wxPrintout *printout = view->OnCreatePrintout();
1015     if (printout)
1016     {
1017         wxPrinter printer;
1018         printer.Print(view->GetFrame(), printout, true);
1019
1020         delete printout;
1021     }
1022 #endif // wxUSE_PRINTING_ARCHITECTURE
1023 }
1024
1025 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1026 {
1027 #if wxUSE_PRINTING_ARCHITECTURE
1028     wxView *view = GetCurrentView();
1029     if (!view)
1030         return;
1031
1032     wxPrintout *printout = view->OnCreatePrintout();
1033     if (printout)
1034     {
1035         // Pass two printout objects: for preview, and possible printing.
1036         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1037         if ( !preview->Ok() )
1038         {
1039             delete preview;
1040             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1041             return;
1042         }
1043
1044         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1045                 wxPoint(100, 100), wxSize(600, 650));
1046         frame->Centre(wxBOTH);
1047         frame->Initialize();
1048         frame->Show(true);
1049     }
1050 #endif // wxUSE_PRINTING_ARCHITECTURE
1051 }
1052
1053 void wxDocManager::OnUndo(wxCommandEvent& event)
1054 {
1055     wxDocument *doc = GetCurrentDocument();
1056     if (!doc)
1057         return;
1058     if (doc->GetCommandProcessor())
1059         doc->GetCommandProcessor()->Undo();
1060     else
1061         event.Skip();
1062 }
1063
1064 void wxDocManager::OnRedo(wxCommandEvent& event)
1065 {
1066     wxDocument *doc = GetCurrentDocument();
1067     if (!doc)
1068         return;
1069     if (doc->GetCommandProcessor())
1070         doc->GetCommandProcessor()->Redo();
1071     else
1072         event.Skip();
1073 }
1074
1075 // Handlers for UI update commands
1076
1077 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1078 {
1079     event.Enable( true );
1080 }
1081
1082 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1083 {
1084     wxDocument *doc = GetCurrentDocument();
1085     event.Enable( (doc != (wxDocument*) NULL) );
1086 }
1087
1088 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1089 {
1090     wxDocument *doc = GetCurrentDocument();
1091     event.Enable( (doc != (wxDocument*) NULL) );
1092 }
1093
1094 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1095 {
1096     event.Enable( true );
1097 }
1098
1099 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1100 {
1101     wxDocument *doc = GetCurrentDocument();
1102     event.Enable( doc && doc->IsModified() );
1103 }
1104
1105 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1106 {
1107     wxDocument *doc = GetCurrentDocument();
1108     event.Enable( (doc != (wxDocument*) NULL) );
1109 }
1110
1111 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1112 {
1113     wxDocument *doc = GetCurrentDocument();
1114     if (!doc)
1115         event.Enable(false);
1116     else if (!doc->GetCommandProcessor())
1117         event.Skip();
1118     else
1119     {
1120         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1121         doc->GetCommandProcessor()->SetMenuStrings();
1122     }
1123 }
1124
1125 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1126 {
1127     wxDocument *doc = GetCurrentDocument();
1128     if (!doc)
1129         event.Enable(false);
1130     else if (!doc->GetCommandProcessor())
1131         event.Skip();
1132     else
1133     {
1134         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1135         doc->GetCommandProcessor()->SetMenuStrings();
1136     }
1137 }
1138
1139 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1140 {
1141     wxDocument *doc = GetCurrentDocument();
1142     event.Enable( (doc != (wxDocument*) NULL) );
1143 }
1144
1145 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1146 {
1147     wxDocument *doc = GetCurrentDocument();
1148     event.Enable( (doc != (wxDocument*) NULL) );
1149 }
1150
1151 wxView *wxDocManager::GetCurrentView() const
1152 {
1153     if (m_currentView)
1154         return m_currentView;
1155     if (m_docs.GetCount() == 1)
1156     {
1157         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1158         return doc->GetFirstView();
1159     }
1160     return (wxView *) NULL;
1161 }
1162
1163 // Extend event processing to search the view's event table
1164 bool wxDocManager::ProcessEvent(wxEvent& event)
1165 {
1166     wxView* view = GetCurrentView();
1167     if (view)
1168     {
1169         if (view->ProcessEvent(event))
1170             return true;
1171     }
1172     return wxEvtHandler::ProcessEvent(event);
1173 }
1174
1175 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1176 {
1177     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1178     int               n = 0;
1179
1180     for (size_t i = 0; i < m_templates.GetCount(); i++)
1181     {
1182         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1183         if (temp->IsVisible())
1184         {
1185             templates[n] = temp;
1186             n ++;
1187         }
1188     }
1189     if (n == 0)
1190     {
1191         delete[] templates;
1192         return (wxDocument *) NULL;
1193     }
1194
1195     wxDocument* docToClose = NULL;
1196
1197     // If we've reached the max number of docs, close the
1198     // first one.
1199     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1200     {
1201         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1202         docToClose = doc;
1203     }
1204
1205     // New document: user chooses a template, unless there's only one.
1206     if (flags & wxDOC_NEW)
1207     {
1208         if (n == 1)
1209         {
1210             if (docToClose)
1211             {
1212                 if (!CloseDocument(docToClose, false))
1213                 {
1214                     delete[] templates;
1215                     return NULL;
1216                 }
1217             }
1218
1219             wxDocTemplate *temp = templates[0];
1220             delete[] templates;
1221             wxDocument *newDoc = temp->CreateDocument(path, flags);
1222
1223             if (newDoc)
1224             {
1225                 newDoc->SetDocumentName(temp->GetDocumentName());
1226                 newDoc->SetDocumentTemplate(temp);
1227                 if (!newDoc->OnNewDocument() )
1228                 {
1229                      // Document is implicitly deleted by DeleteAllViews
1230                      newDoc->DeleteAllViews();
1231                      return NULL;
1232                 }
1233             }
1234             return newDoc;
1235         }
1236
1237         wxDocTemplate *temp = SelectDocumentType(templates, n);
1238         delete[] templates;
1239         if (temp)
1240         {
1241             if (docToClose)
1242             {
1243                 if (!CloseDocument(docToClose, false))
1244                 {
1245                     return NULL;
1246                 }
1247             }
1248
1249             wxDocument *newDoc = temp->CreateDocument(path, flags);
1250
1251             if (newDoc)
1252             {
1253                 newDoc->SetDocumentName(temp->GetDocumentName());
1254                 newDoc->SetDocumentTemplate(temp);
1255                 if (!newDoc->OnNewDocument() )
1256                 {
1257                      // Document is implicitly deleted by DeleteAllViews
1258                      newDoc->DeleteAllViews();
1259                      return NULL;
1260                 }
1261             }
1262             return newDoc;
1263         }
1264         else
1265             return (wxDocument *) NULL;
1266     }
1267
1268     // Existing document
1269     wxDocTemplate *temp;
1270
1271     wxString path2 = path;
1272
1273     if (flags & wxDOC_SILENT)
1274     {
1275         temp = FindTemplateForPath(path2);
1276         if (!temp)
1277         {
1278             // Since we do not add files with non-default extensions to the FileHistory this
1279             // can only happen if the application changes the allowed templates in runtime.
1280             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1281                                 _("Open File"),
1282                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1283         }
1284     }
1285     else
1286         temp = SelectDocumentPath(templates, n, path2, flags);
1287
1288     delete[] templates;
1289
1290     if (temp)
1291     {
1292         if (docToClose)
1293         {
1294             if (!CloseDocument(docToClose, false))
1295             {
1296                 return NULL;
1297             }
1298         }
1299
1300         //see if this file is already open
1301         for (size_t i = 0; i < GetDocuments().GetCount(); ++i)
1302         {
1303             wxDocument* currentDoc = (wxDocument*)(GetDocuments().Item(i)->GetData());
1304 #ifdef __WXMSW__
1305             //file paths are case-insensitive on Windows
1306             if (path2.CmpNoCase(currentDoc->GetFilename()) == 0)
1307 #else
1308             if (path2.Cmp(currentDoc->GetFilename()) == 0)
1309 #endif
1310             {
1311                 //file already open. Just activate it and return
1312                 if (currentDoc->GetFirstView())
1313                 {
1314                     ActivateView(currentDoc->GetFirstView(), true);
1315                     if (currentDoc->GetDocumentWindow())
1316                         currentDoc->GetDocumentWindow()->SetFocus();
1317                     return currentDoc;
1318                 }
1319             }
1320         }
1321
1322         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1323         if (newDoc)
1324         {
1325             newDoc->SetDocumentName(temp->GetDocumentName());
1326             newDoc->SetDocumentTemplate(temp);
1327             if (!newDoc->OnOpenDocument(path2))
1328             {
1329                 newDoc->DeleteAllViews();
1330                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1331                 return (wxDocument *) NULL;
1332             }
1333             // A file that doesn't use the default extension of its document
1334             // template cannot be opened via the FileHistory, so we do not
1335             // add it.
1336             if (temp->FileMatchesTemplate(path2))
1337                 AddFileToHistory(path2);
1338         }
1339         return newDoc;
1340     }
1341
1342     return (wxDocument *) NULL;
1343 }
1344
1345 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1346 {
1347     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1348     int               n =0;
1349
1350     for (size_t i = 0; i < m_templates.GetCount(); i++)
1351     {
1352         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1353         if (temp->IsVisible())
1354         {
1355             if (temp->GetDocumentName() == doc->GetDocumentName())
1356             {
1357                 templates[n] = temp;
1358                 n ++;
1359             }
1360         }
1361     }
1362     if (n == 0)
1363     {
1364         delete[] templates;
1365         return (wxView *) NULL;
1366     }
1367     if (n == 1)
1368     {
1369         wxDocTemplate *temp = templates[0];
1370         delete[] templates;
1371         wxView *view = temp->CreateView(doc, flags);
1372         if (view)
1373             view->SetViewName(temp->GetViewName());
1374         return view;
1375     }
1376
1377     wxDocTemplate *temp = SelectViewType(templates, n);
1378     delete[] templates;
1379     if (temp)
1380     {
1381         wxView *view = temp->CreateView(doc, flags);
1382         if (view)
1383             view->SetViewName(temp->GetViewName());
1384         return view;
1385     }
1386     else
1387         return (wxView *) NULL;
1388 }
1389
1390 // Not yet implemented
1391 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1392 {
1393 }
1394
1395 // Not yet implemented
1396 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1397 {
1398     return false;
1399 }
1400
1401 wxDocument *wxDocManager::GetCurrentDocument() const
1402 {
1403     wxView *view = GetCurrentView();
1404     if (view)
1405         return view->GetDocument();
1406     else
1407         return (wxDocument *) NULL;
1408 }
1409
1410 // Make a default document name
1411 bool wxDocManager::MakeDefaultName(wxString& name)
1412 {
1413     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1414     m_defaultDocumentNameCounter++;
1415
1416     return true;
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->GetAppName();
1424     wxString title;
1425     if (!doc)
1426         title = appName;
1427     else
1428     {
1429         wxString docName;
1430         doc->GetPrintableName(docName);
1431         title = docName + wxString(_(" - ")) + appName;
1432     }
1433     return title;
1434 }
1435
1436
1437 // Not yet implemented
1438 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1439 {
1440     return (wxDocTemplate *) NULL;
1441 }
1442
1443 // File history management
1444 void wxDocManager::AddFileToHistory(const wxString& file)
1445 {
1446     if (m_fileHistory)
1447         m_fileHistory->AddFileToHistory(file);
1448 }
1449
1450 void wxDocManager::RemoveFileFromHistory(size_t i)
1451 {
1452     if (m_fileHistory)
1453         m_fileHistory->RemoveFileFromHistory(i);
1454 }
1455
1456 wxString wxDocManager::GetHistoryFile(size_t i) const
1457 {
1458     wxString histFile;
1459
1460     if (m_fileHistory)
1461         histFile = m_fileHistory->GetHistoryFile(i);
1462
1463     return histFile;
1464 }
1465
1466 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1467 {
1468     if (m_fileHistory)
1469         m_fileHistory->UseMenu(menu);
1470 }
1471
1472 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1473 {
1474     if (m_fileHistory)
1475         m_fileHistory->RemoveMenu(menu);
1476 }
1477
1478 #if wxUSE_CONFIG
1479 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1480 {
1481     if (m_fileHistory)
1482         m_fileHistory->Load(config);
1483 }
1484
1485 void wxDocManager::FileHistorySave(wxConfigBase& config)
1486 {
1487     if (m_fileHistory)
1488         m_fileHistory->Save(config);
1489 }
1490 #endif
1491
1492 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1493 {
1494     if (m_fileHistory)
1495         m_fileHistory->AddFilesToMenu(menu);
1496 }
1497
1498 void wxDocManager::FileHistoryAddFilesToMenu()
1499 {
1500     if (m_fileHistory)
1501         m_fileHistory->AddFilesToMenu();
1502 }
1503
1504 size_t wxDocManager::GetHistoryFilesCount() const
1505 {
1506     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1507 }
1508
1509
1510 // Find out the document template via matching in the document file format
1511 // against that of the template
1512 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1513 {
1514     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1515
1516     // Find the template which this extension corresponds to
1517     for (size_t i = 0; i < m_templates.GetCount(); i++)
1518     {
1519         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1520         if ( temp->FileMatchesTemplate(path) )
1521         {
1522             theTemplate = temp;
1523             break;
1524         }
1525     }
1526     return theTemplate;
1527 }
1528
1529 // Try to get a more suitable parent frame than the top window,
1530 // for selection dialogs. Otherwise you may get an unexpected
1531 // window being activated when a dialog is shown.
1532 static wxWindow* wxFindSuitableParent()
1533 {
1534     wxWindow* parent = wxTheApp->GetTopWindow();
1535
1536     wxWindow* focusWindow = wxWindow::FindFocus();
1537     if (focusWindow)
1538     {
1539         while (focusWindow &&
1540                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1541                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1542
1543             focusWindow = focusWindow->GetParent();
1544
1545         if (focusWindow)
1546             parent = focusWindow;
1547     }
1548     return parent;
1549 }
1550
1551 // Prompts user to open a file, using file specs in templates.
1552 // Must extend the file selector dialog or implement own; OR
1553 // match the extension to the template extension.
1554
1555 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1556 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1557                                                 int noTemplates,
1558 #else
1559                                                 int WXUNUSED(noTemplates),
1560 #endif
1561                                                 wxString& path,
1562                                                 long WXUNUSED(flags),
1563                                                 bool WXUNUSED(save))
1564 {
1565     // We can only have multiple filters in Windows and GTK
1566 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1567     wxString descrBuf;
1568
1569     int i;
1570     for (i = 0; i < noTemplates; i++)
1571     {
1572         if (templates[i]->IsVisible())
1573         {
1574             // add a '|' to separate this filter from the previous one
1575             if ( !descrBuf.empty() )
1576                 descrBuf << wxT('|');
1577
1578             descrBuf << templates[i]->GetDescription()
1579                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1580                 << templates[i]->GetFileFilter();
1581         }
1582     }
1583 #else
1584     wxString descrBuf = wxT("*.*");
1585 #endif
1586
1587     int FilterIndex = -1;
1588
1589     wxWindow* parent = wxFindSuitableParent();
1590
1591     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1592                                         m_lastDirectory,
1593                                         wxEmptyString,
1594                                         &FilterIndex,
1595                                         descrBuf,
1596                                         0,
1597                                         parent);
1598
1599     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1600     if (!pathTmp.empty())
1601     {
1602         if (!wxFileExists(pathTmp))
1603         {
1604             wxString msgTitle;
1605             if (!wxTheApp->GetAppName().empty())
1606                 msgTitle = wxTheApp->GetAppName();
1607             else
1608                 msgTitle = wxString(_("File error"));
1609
1610             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1611                 parent);
1612
1613             path = wxEmptyString;
1614             return (wxDocTemplate *) NULL;
1615         }
1616         m_lastDirectory = wxPathOnly(pathTmp);
1617
1618         path = pathTmp;
1619
1620         // first choose the template using the extension, if this fails (i.e.
1621         // wxFileSelectorEx() didn't fill it), then use the path
1622         if ( FilterIndex != -1 )
1623             theTemplate = templates[FilterIndex];
1624         if ( !theTemplate )
1625             theTemplate = FindTemplateForPath(path);
1626         if ( !theTemplate )
1627         {
1628             // Since we do not add files with non-default extensions to the FileHistory this
1629             // can only happen if the application changes the allowed templates in runtime.
1630             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1631                                 _("Open File"),
1632                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1633         }
1634     }
1635     else
1636     {
1637         path = wxEmptyString;
1638     }
1639
1640     return theTemplate;
1641 }
1642
1643 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1644                                                 int noTemplates, bool sort)
1645 {
1646     wxArrayString strings;
1647     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1648     int i;
1649     int n = 0;
1650
1651     for (i = 0; i < noTemplates; i++)
1652     {
1653         if (templates[i]->IsVisible())
1654         {
1655             int j;
1656             bool want = true;
1657             for (j = 0; j < n; j++)
1658             {
1659                 //filter out NOT unique documents + view combinations
1660                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1661                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1662                    )
1663                     want = false;
1664             }
1665
1666             if ( want )
1667             {
1668                 strings.Add(templates[i]->m_description);
1669
1670                 data[n] = templates[i];
1671                 n ++;
1672             }
1673         }
1674     }  // for
1675
1676     if (sort)
1677     {
1678         strings.Sort(); // ascending sort
1679         // Yes, this will be slow, but template lists
1680         // are typically short.
1681         int j;
1682         n = strings.Count();
1683         for (i = 0; i < n; i++)
1684         {
1685             for (j = 0; j < noTemplates; j++)
1686             {
1687                 if (strings[i] == templates[j]->m_description)
1688                     data[i] = templates[j];
1689             }
1690         }
1691     }
1692
1693     wxDocTemplate *theTemplate;
1694
1695     switch ( n )
1696     {
1697         case 0:
1698             // no visible templates, hence nothing to choose from
1699             theTemplate = NULL;
1700             break;
1701
1702         case 1:
1703             // don't propose the user to choose if he heas no choice
1704             theTemplate = data[0];
1705             break;
1706
1707         default:
1708             // propose the user to choose one of several
1709             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1710                           (
1711                             _("Select a document template"),
1712                             _("Templates"),
1713                             strings,
1714                             (void **)data,
1715                             wxFindSuitableParent()
1716                           );
1717     }
1718
1719     delete[] data;
1720
1721     return theTemplate;
1722 }
1723
1724 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1725                                             int noTemplates, bool sort)
1726 {
1727     wxArrayString strings;
1728     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1729     int i;
1730     int n = 0;
1731
1732     for (i = 0; i < noTemplates; i++)
1733     {
1734         wxDocTemplate *templ = templates[i];
1735         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1736         {
1737             int j;
1738             bool want = true;
1739             for (j = 0; j < n; j++)
1740             {
1741                 //filter out NOT unique views
1742                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1743                     want = false;
1744             }
1745
1746             if ( want )
1747             {
1748                 strings.Add(templ->m_viewTypeName);
1749                 data[n] = templ;
1750                 n ++;
1751             }
1752         }
1753     }
1754
1755     if (sort)
1756     {
1757         strings.Sort(); // ascending sort
1758         // Yes, this will be slow, but template lists
1759         // are typically short.
1760         int j;
1761         n = strings.Count();
1762         for (i = 0; i < n; i++)
1763         {
1764             for (j = 0; j < noTemplates; j++)
1765             {
1766                 if (strings[i] == templates[j]->m_viewTypeName)
1767                     data[i] = templates[j];
1768             }
1769         }
1770     }
1771
1772     wxDocTemplate *theTemplate;
1773
1774     // the same logic as above
1775     switch ( n )
1776     {
1777         case 0:
1778             theTemplate = (wxDocTemplate *)NULL;
1779             break;
1780
1781         case 1:
1782             theTemplate = data[0];
1783             break;
1784
1785         default:
1786             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1787                           (
1788                             _("Select a document view"),
1789                             _("Views"),
1790                             strings,
1791                             (void **)data,
1792                             wxFindSuitableParent()
1793                           );
1794
1795     }
1796
1797     delete[] data;
1798     return theTemplate;
1799 }
1800
1801 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1802 {
1803     if (!m_templates.Member(temp))
1804         m_templates.Append(temp);
1805 }
1806
1807 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1808 {
1809     m_templates.DeleteObject(temp);
1810 }
1811
1812 // Add and remove a document from the manager's list
1813 void wxDocManager::AddDocument(wxDocument *doc)
1814 {
1815     if (!m_docs.Member(doc))
1816         m_docs.Append(doc);
1817 }
1818
1819 void wxDocManager::RemoveDocument(wxDocument *doc)
1820 {
1821     m_docs.DeleteObject(doc);
1822 }
1823
1824 // Views or windows should inform the document manager
1825 // when a view is going in or out of focus
1826 void wxDocManager::ActivateView(wxView *view, bool activate)
1827 {
1828     if ( activate )
1829     {
1830         m_currentView = view;
1831     }
1832     else // deactivate
1833     {
1834         if ( m_currentView == view )
1835         {
1836             // don't keep stale pointer
1837             m_currentView = (wxView *) NULL;
1838         }
1839     }
1840 }
1841
1842 // ----------------------------------------------------------------------------
1843 // Default document child frame
1844 // ----------------------------------------------------------------------------
1845
1846 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1847     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1848     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1849 END_EVENT_TABLE()
1850
1851 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1852                                  wxView *view,
1853                                  wxFrame *frame,
1854                                  wxWindowID id,
1855                                  const wxString& title,
1856                                  const wxPoint& pos,
1857                                  const wxSize& size,
1858                                  long style,
1859                                  const wxString& name)
1860                : wxFrame(frame, id, title, pos, size, style, name)
1861 {
1862     m_childDocument = doc;
1863     m_childView = view;
1864     if (view)
1865         view->SetFrame(this);
1866 }
1867
1868 // Extend event processing to search the view's event table
1869 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1870 {
1871     if (m_childView)
1872         m_childView->Activate(true);
1873
1874     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1875     {
1876         // Only hand up to the parent if it's a menu command
1877         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1878             return wxEvtHandler::ProcessEvent(event);
1879         else
1880             return true;
1881     }
1882     else
1883         return true;
1884 }
1885
1886 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1887 {
1888     wxFrame::OnActivate(event);
1889
1890     if (m_childView)
1891         m_childView->Activate(event.GetActive());
1892 }
1893
1894 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1895 {
1896     if (m_childView)
1897     {
1898         bool ans = event.CanVeto()
1899                     ? m_childView->Close(false) // false means don't delete associated window
1900                     : true; // Must delete.
1901
1902         if (ans)
1903         {
1904             m_childView->Activate(false);
1905             delete m_childView;
1906             m_childView = (wxView *) NULL;
1907             m_childDocument = (wxDocument *) NULL;
1908
1909             this->Destroy();
1910         }
1911         else
1912             event.Veto();
1913     }
1914     else
1915         event.Veto();
1916 }
1917
1918 // ----------------------------------------------------------------------------
1919 // Default parent frame
1920 // ----------------------------------------------------------------------------
1921
1922 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1923     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1924     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1925     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1926 END_EVENT_TABLE()
1927
1928 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1929                                    wxFrame *frame,
1930                                    wxWindowID id,
1931                                    const wxString& title,
1932                                    const wxPoint& pos,
1933                                    const wxSize& size,
1934                                    long style,
1935                                    const wxString& name)
1936                 : wxFrame(frame, id, title, pos, size, style, name)
1937 {
1938     m_docManager = manager;
1939 }
1940
1941 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1942 {
1943     Close();
1944 }
1945
1946 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1947 {
1948     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1949     wxString filename(m_docManager->GetHistoryFile(n));
1950     if ( !filename.empty() )
1951     {
1952         // verify that the file exists before doing anything else
1953         if ( wxFile::Exists(filename) )
1954         {
1955             // try to open it
1956             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
1957             {
1958                 // remove the file from the MRU list. The user should already be notified.
1959                 m_docManager->RemoveFileFromHistory(n);
1960
1961                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
1962                        filename.c_str());
1963             }
1964         }
1965         else
1966         {
1967             // remove the bogus filename from the MRU list and notify the user
1968             // about it
1969             m_docManager->RemoveFileFromHistory(n);
1970
1971             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1972                        filename.c_str());
1973         }
1974     }
1975 }
1976
1977 // Extend event processing to search the view's event table
1978 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1979 {
1980     // Try the document manager, then do default processing
1981     if (!m_docManager || !m_docManager->ProcessEvent(event))
1982         return wxEvtHandler::ProcessEvent(event);
1983     else
1984         return true;
1985 }
1986
1987 // Define the behaviour for the frame closing
1988 // - must delete all frames except for the main one.
1989 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1990 {
1991     if (m_docManager->Clear(!event.CanVeto()))
1992     {
1993         this->Destroy();
1994     }
1995     else
1996         event.Veto();
1997 }
1998
1999 #if wxUSE_PRINTING_ARCHITECTURE
2000
2001 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
2002              : wxPrintout(title)
2003 {
2004     m_printoutView = view;
2005 }
2006
2007 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
2008 {
2009     wxDC *dc = GetDC();
2010
2011     // Get the logical pixels per inch of screen and printer
2012     int ppiScreenX, ppiScreenY;
2013     GetPPIScreen(&ppiScreenX, &ppiScreenY);
2014     wxUnusedVar(ppiScreenY);
2015     int ppiPrinterX, ppiPrinterY;
2016     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
2017     wxUnusedVar(ppiPrinterY);
2018
2019     // This scales the DC so that the printout roughly represents the
2020     // the screen scaling. The text point size _should_ be the right size
2021     // but in fact is too small for some reason. This is a detail that will
2022     // need to be addressed at some point but can be fudged for the
2023     // moment.
2024     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2025
2026     // Now we have to check in case our real page size is reduced
2027     // (e.g. because we're drawing to a print preview memory DC)
2028     int pageWidth, pageHeight;
2029     int w, h;
2030     dc->GetSize(&w, &h);
2031     GetPageSizePixels(&pageWidth, &pageHeight);
2032     wxUnusedVar(pageHeight);
2033
2034     // If printer pageWidth == current DC width, then this doesn't
2035     // change. But w might be the preview bitmap width, so scale down.
2036     float overallScale = scale * (float)(w/(float)pageWidth);
2037     dc->SetUserScale(overallScale, overallScale);
2038
2039     if (m_printoutView)
2040     {
2041         m_printoutView->OnDraw(dc);
2042     }
2043     return true;
2044 }
2045
2046 bool wxDocPrintout::HasPage(int pageNum)
2047 {
2048     return (pageNum == 1);
2049 }
2050
2051 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2052 {
2053     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2054         return false;
2055
2056     return true;
2057 }
2058
2059 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
2060 {
2061     *minPage = 1;
2062     *maxPage = 1;
2063     *selPageFrom = 1;
2064     *selPageTo = 1;
2065 }
2066
2067 #endif // wxUSE_PRINTING_ARCHITECTURE
2068
2069 // ----------------------------------------------------------------------------
2070 // File history processor
2071 // ----------------------------------------------------------------------------
2072
2073 static inline wxChar* MYcopystring(const wxString& s)
2074 {
2075     wxChar* copy = new wxChar[s.length() + 1];
2076     return wxStrcpy(copy, s.c_str());
2077 }
2078
2079 static inline wxChar* MYcopystring(const wxChar* s)
2080 {
2081     wxChar* copy = new wxChar[wxStrlen(s) + 1];
2082     return wxStrcpy(copy, s);
2083 }
2084
2085 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2086 {
2087     m_fileMaxFiles = maxFiles;
2088     m_idBase = idBase;
2089     m_fileHistoryN = 0;
2090     m_fileHistory = new wxChar *[m_fileMaxFiles];
2091 }
2092
2093 wxFileHistory::~wxFileHistory()
2094 {
2095     size_t i;
2096     for (i = 0; i < m_fileHistoryN; i++)
2097         delete[] m_fileHistory[i];
2098     delete[] m_fileHistory;
2099 }
2100
2101 // File history management
2102 void wxFileHistory::AddFileToHistory(const wxString& file)
2103 {
2104     size_t i;
2105
2106     // Check we don't already have this file
2107     for (i = 0; i < m_fileHistoryN; i++)
2108     {
2109 #if defined( __WXMSW__ ) // Add any other OSes with case insensitive file names
2110         wxString testString;
2111         if ( m_fileHistory[i] )
2112             testString = m_fileHistory[i];
2113         if ( m_fileHistory[i] && ( file.Lower() == testString.Lower() ) )
2114 #else
2115         if ( m_fileHistory[i] && ( file == m_fileHistory[i] ) )
2116 #endif
2117         {
2118             // we do have it, move it to the top of the history
2119             RemoveFileFromHistory (i);
2120             AddFileToHistory (file);
2121             return;
2122         }
2123     }
2124
2125     // if we already have a full history, delete the one at the end
2126     if ( m_fileMaxFiles == m_fileHistoryN )
2127     {
2128         RemoveFileFromHistory (m_fileHistoryN - 1);
2129         AddFileToHistory (file);
2130         return;
2131     }
2132
2133     // Add to the project file history:
2134     // Move existing files (if any) down so we can insert file at beginning.
2135     if (m_fileHistoryN < m_fileMaxFiles)
2136     {
2137         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2138         while (node)
2139         {
2140             wxMenu* menu = (wxMenu*) node->GetData();
2141             if ( m_fileHistoryN == 0 && menu->GetMenuItemCount() )
2142             {
2143                 menu->AppendSeparator();
2144             }
2145             menu->Append(m_idBase+m_fileHistoryN, _("[EMPTY]"));
2146             node = node->GetNext();
2147         }
2148         m_fileHistoryN ++;
2149     }
2150     // Shuffle filenames down
2151     for (i = (m_fileHistoryN-1); i > 0; i--)
2152     {
2153         m_fileHistory[i] = m_fileHistory[i-1];
2154     }
2155     m_fileHistory[0] = MYcopystring(file);
2156
2157     // this is the directory of the last opened file
2158     wxString pathCurrent;
2159     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2160     for (i = 0; i < m_fileHistoryN; i++)
2161     {
2162         if ( m_fileHistory[i] )
2163         {
2164             // if in same directory just show the filename; otherwise the full
2165             // path
2166             wxString pathInMenu, path, filename, ext;
2167             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2168             if ( path == pathCurrent )
2169             {
2170                 pathInMenu = filename;
2171                 if ( !ext.empty() )
2172                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2173             }
2174             else
2175             {
2176                 // absolute path; could also set relative path
2177                 pathInMenu = m_fileHistory[i];
2178             }
2179
2180             // we need to quote '&' characters which are used for mnemonics
2181             pathInMenu.Replace(_T("&"), _T("&&"));
2182             wxString buf;
2183             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2184             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2185             while (node)
2186             {
2187                 wxMenu* menu = (wxMenu*) node->GetData();
2188                 menu->SetLabel(m_idBase + i, buf);
2189                 node = node->GetNext();
2190             }
2191         }
2192     }
2193 }
2194
2195 void wxFileHistory::RemoveFileFromHistory(size_t i)
2196 {
2197     wxCHECK_RET( i < m_fileHistoryN,
2198                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2199
2200     // delete the element from the array (could use memmove() too...)
2201     delete [] m_fileHistory[i];
2202
2203     size_t j;
2204     for ( j = i; j < m_fileHistoryN - 1; j++ )
2205     {
2206         m_fileHistory[j] = m_fileHistory[j + 1];
2207     }
2208
2209     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2210     while ( node )
2211     {
2212         wxMenu* menu = (wxMenu*) node->GetData();
2213
2214         // shuffle filenames up
2215         wxString buf;
2216         for ( j = i; j < m_fileHistoryN - 1; j++ )
2217         {
2218             buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2219             menu->SetLabel(m_idBase + j, buf);
2220         }
2221
2222         node = node->GetNext();
2223
2224         // delete the last menu item which is unused now
2225         wxWindowID lastItemId = m_idBase + wx_truncate_cast(wxWindowID, m_fileHistoryN) - 1;
2226         if (menu->FindItem(lastItemId))
2227         {
2228             menu->Delete(lastItemId);
2229         }
2230
2231         // delete the last separator too if no more files are left
2232         if ( m_fileHistoryN == 1 )
2233         {
2234             wxMenuItemList::compatibility_iterator nodeLast = menu->GetMenuItems().GetLast();
2235             if ( nodeLast )
2236             {
2237                 wxMenuItem *menuItem = nodeLast->GetData();
2238                 if ( menuItem->IsSeparator() )
2239                 {
2240                     menu->Delete(menuItem);
2241                 }
2242                 //else: should we search backwards for the last separator?
2243             }
2244             //else: menu is empty somehow
2245         }
2246     }
2247
2248     m_fileHistoryN--;
2249 }
2250
2251 wxString wxFileHistory::GetHistoryFile(size_t i) const
2252 {
2253     wxString s;
2254     if ( i < m_fileHistoryN )
2255     {
2256         s = m_fileHistory[i];
2257     }
2258     else
2259     {
2260         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2261     }
2262
2263     return s;
2264 }
2265
2266 void wxFileHistory::UseMenu(wxMenu *menu)
2267 {
2268     if (!m_fileMenus.Member(menu))
2269         m_fileMenus.Append(menu);
2270 }
2271
2272 void wxFileHistory::RemoveMenu(wxMenu *menu)
2273 {
2274     m_fileMenus.DeleteObject(menu);
2275 }
2276
2277 #if wxUSE_CONFIG
2278 void wxFileHistory::Load(wxConfigBase& config)
2279 {
2280     m_fileHistoryN = 0;
2281     wxString buf;
2282     buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2283     wxString historyFile;
2284     while ((m_fileHistoryN < m_fileMaxFiles) && config.Read(buf, &historyFile) && (!historyFile.empty()))
2285     {
2286         m_fileHistory[m_fileHistoryN] = MYcopystring((const wxChar*) historyFile);
2287         m_fileHistoryN ++;
2288         buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2289         historyFile = wxEmptyString;
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_fileHistoryN)
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_fileHistoryN > 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_fileHistoryN; i++)
2324             {
2325                 if (m_fileHistory[i])
2326                 {
2327                     wxString buf;
2328                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2329                     menu->Append(m_idBase+i, buf);
2330                 }
2331             }
2332             node = node->GetNext();
2333         }
2334     }
2335 }
2336
2337 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2338 {
2339     if (m_fileHistoryN > 0)
2340     {
2341         if (menu->GetMenuItemCount())
2342         {
2343             menu->AppendSeparator();
2344         }
2345
2346         size_t i;
2347         for (i = 0; i < m_fileHistoryN; i++)
2348         {
2349             if (m_fileHistory[i])
2350             {
2351                 wxString buf;
2352                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2353                 menu->Append(m_idBase+i, buf);
2354             }
2355         }
2356     }
2357 }
2358
2359 // ----------------------------------------------------------------------------
2360 // Permits compatibility with existing file formats and functions that
2361 // manipulate files directly
2362 // ----------------------------------------------------------------------------
2363
2364 #if wxUSE_STD_IOSTREAM
2365
2366 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2367 {
2368     wxFFile file(filename, _T("rb"));
2369     if ( !file.IsOpened() )
2370         return false;
2371
2372     char buf[4096];
2373
2374     size_t nRead;
2375     do
2376     {
2377         nRead = file.Read(buf, WXSIZEOF(buf));
2378         if ( file.Error() )
2379             return false;
2380
2381         stream.write(buf, nRead);
2382         if ( !stream )
2383             return false;
2384     }
2385     while ( !file.Eof() );
2386
2387     return true;
2388 }
2389
2390 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2391 {
2392     wxFFile file(filename, _T("wb"));
2393     if ( !file.IsOpened() )
2394         return false;
2395
2396     char buf[4096];
2397     do
2398     {
2399         stream.read(buf, WXSIZEOF(buf));
2400         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2401         {
2402             if ( !file.Write(buf, stream.gcount()) )
2403                 return false;
2404         }
2405     }
2406     while ( !stream.eof() );
2407
2408     return true;
2409 }
2410
2411 #else // !wxUSE_STD_IOSTREAM
2412
2413 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2414 {
2415     wxFFile file(filename, _T("rb"));
2416     if ( !file.IsOpened() )
2417         return false;
2418
2419     char buf[4096];
2420
2421     size_t nRead;
2422     do
2423     {
2424         nRead = file.Read(buf, WXSIZEOF(buf));
2425         if ( file.Error() )
2426             return false;
2427
2428         stream.Write(buf, nRead);
2429         if ( !stream )
2430             return false;
2431     }
2432     while ( !file.Eof() );
2433
2434     return true;
2435 }
2436
2437 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2438 {
2439     wxFFile file(filename, _T("wb"));
2440     if ( !file.IsOpened() )
2441         return false;
2442
2443     char buf[4096];
2444     do
2445     {
2446         stream.Read(buf, WXSIZEOF(buf));
2447
2448         const size_t nRead = stream.LastRead();
2449         if ( !nRead || !file.Write(buf, nRead) )
2450             return false;
2451     }
2452     while ( !stream.Eof() );
2453
2454     return true;
2455 }
2456
2457 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2458
2459 #endif // wxUSE_DOC_VIEW_ARCHITECTURE