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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "docview.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28   #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_DOC_VIEW_ARCHITECTURE
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/string.h"
  35     #include "wx/utils.h"
  36     #include "wx/app.h"
  37     #include "wx/dc.h"
  38     #include "wx/dialog.h"
  39     #include "wx/menu.h"
  40     #include "wx/list.h"
  41     #include "wx/filedlg.h"
  42     #include "wx/intl.h"
  43     #include "wx/log.h"
  44 #endif
  45
  46 #include "wx/ffile.h"
  47
  48 #ifdef __WXMAC__
  49     #include "wx/filename.h"
  50 #endif
  51
  52 #ifdef __WXGTK__
  53     #include "wx/mdi.h"
  54 #endif
  55
  56 #if wxUSE_PRINTING_ARCHITECTURE
  57   #include "wx/prntbase.h"
  58   #include "wx/printdlg.h"
  59 #endif
  60
  61 #include "wx/msgdlg.h"
  62 #include "wx/choicdlg.h"
  63 #include "wx/docview.h"
  64 #include "wx/confbase.h"
  65 #include "wx/file.h"
  66 #include "wx/cmdproc.h"
  67
  68 #include <stdio.h>
  69 #include <string.h>
  70
  71 #if wxUSE_STD_IOSTREAM
  72   #include "wx/ioswrap.h"
  73   #if wxUSE_IOSTREAMH
  74     #include <fstream.h>
  75   #else
  76     #include <fstream>
  77   #endif
  78 #else
  79   #include "wx/wfstream.h"
  80 #endif
  81
  82 // ----------------------------------------------------------------------------
  83 // wxWindows macros
  84 // ----------------------------------------------------------------------------
  85
  86 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  87 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  88 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  89 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  90 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  91 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  92
  93 #if wxUSE_PRINTING_ARCHITECTURE
  94     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  95 #endif
  96
  97 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  98
  99 // ----------------------------------------------------------------------------
 100 // function prototypes
 101 // ----------------------------------------------------------------------------
 102
 103 static inline wxString FindExtension(const wxChar *path);
 104 static wxWindow* wxFindSuitableParent(void);
 105
 106 // ----------------------------------------------------------------------------
 107 // local constants
 108 // ----------------------------------------------------------------------------
 109
 110 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 111
 112 // ============================================================================
 113 // implementation
 114 // ============================================================================
 115
 116 // ----------------------------------------------------------------------------
 117 // local functions
 118 // ----------------------------------------------------------------------------
 119
 120 static wxString FindExtension(const wxChar *path)
 121 {
 122     wxString ext;
 123     wxSplitPath(path, NULL, NULL, &ext);
 124
 125     // VZ: extensions are considered not case sensitive - is this really a good
 126     //     idea?
 127     return ext.MakeLower();
 128 }
 129
 130 // ----------------------------------------------------------------------------
 131 // Definition of wxDocument
 132 // ----------------------------------------------------------------------------
 133
 134 wxDocument::wxDocument(wxDocument *parent)
 135 {
 136     m_documentModified = FALSE;
 137     m_documentParent = parent;
 138     m_documentTemplate = (wxDocTemplate *) NULL;
 139     m_commandProcessor = (wxCommandProcessor*) NULL;
 140     m_savedYet = FALSE;
 141 }
 142
 143 bool wxDocument::DeleteContents()
 144 {
 145     return TRUE;
 146 }
 147
 148 wxDocument::~wxDocument()
 149 {
 150     DeleteContents();
 151
 152     if (m_commandProcessor)
 153         delete m_commandProcessor;
 154
 155     if (GetDocumentManager())
 156         GetDocumentManager()->RemoveDocument(this);
 157
 158     // Not safe to do here, since it'll invoke virtual view functions
 159     // expecting to see valid derived objects: and by the time we get here,
 160     // we've called destructors higher up.
 161     //DeleteAllViews();
 162 }
 163
 164 bool wxDocument::Close()
 165 {
 166     if (OnSaveModified())
 167         return OnCloseDocument();
 168     else
 169         return FALSE;
 170 }
 171
 172 bool wxDocument::OnCloseDocument()
 173 {
 174     // Tell all views that we're about to close
 175     NotifyClosing();
 176     DeleteContents();
 177     Modify(FALSE);
 178     return TRUE;
 179 }
 180
 181 // Note that this implicitly deletes the document when the last view is
 182 // deleted.
 183 bool wxDocument::DeleteAllViews()
 184 {
 185     wxDocManager* manager = GetDocumentManager();
 186     wxList::iterator it, en;
 187
 188     for ( it = m_documentViews.begin(), en = m_documentViews.end();
 189           it != en;
 190           )
 191     {
 192         wxView *view = (wxView *)*it;
 193         if (!view->Close())
 194             return FALSE;
 195
 196         wxList::iterator next = it; ++next;
 197
 198         delete view; // Deletes node implicitly
 199         it = next;
 200     }
 201     // If we haven't yet deleted the document (for example
 202     // if there were no views) then delete it.
 203     if (manager && manager->GetDocuments().Member(this))
 204         delete this;
 205
 206     return TRUE;
 207 }
 208
 209 wxView *wxDocument::GetFirstView() const
 210 {
 211     if (m_documentViews.GetCount() == 0)
 212         return (wxView *) NULL;
 213     return (wxView *)m_documentViews.GetFirst()->GetData();
 214 }
 215
 216 wxDocManager *wxDocument::GetDocumentManager() const
 217 {
 218     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 219 }
 220
 221 bool wxDocument::OnNewDocument()
 222 {
 223     if (!OnSaveModified())
 224         return FALSE;
 225
 226     if (OnCloseDocument()==FALSE) return FALSE;
 227     DeleteContents();
 228     Modify(FALSE);
 229     SetDocumentSaved(FALSE);
 230
 231     wxString name;
 232     GetDocumentManager()->MakeDefaultName(name);
 233     SetTitle(name);
 234     SetFilename(name, TRUE);
 235
 236     return TRUE;
 237 }
 238
 239 bool wxDocument::Save()
 240 {
 241     if (!IsModified() && m_savedYet)
 242         return TRUE;
 243
 244     if ( m_documentFile.empty() || !m_savedYet )
 245         return SaveAs();
 246
 247     return OnSaveDocument(m_documentFile);
 248 }
 249
 250 bool wxDocument::SaveAs()
 251 {
 252     wxDocTemplate *docTemplate = GetDocumentTemplate();
 253     if (!docTemplate)
 254         return FALSE;
 255
 256     wxString tmp = wxFileSelector(_("Save as"),
 257             docTemplate->GetDirectory(),
 258             wxFileNameFromPath(GetFilename()),
 259             docTemplate->GetDefaultExtension(),
 260             docTemplate->GetFileFilter(),
 261             wxSAVE | wxOVERWRITE_PROMPT,
 262             GetDocumentWindow());
 263
 264     if (tmp.IsEmpty())
 265         return FALSE;
 266
 267     wxString fileName(tmp);
 268     wxString path, name, ext;
 269     wxSplitPath(fileName, & path, & name, & ext);
 270
 271     if (ext.IsEmpty() || ext == wxT(""))
 272     {
 273         fileName += wxT(".");
 274         fileName += docTemplate->GetDefaultExtension();
 275     }
 276
 277     SetFilename(fileName);
 278     SetTitle(wxFileNameFromPath(fileName));
 279
 280     // Notify the views that the filename has changed
 281     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 282     while (node)
 283     {
 284         wxView *view = (wxView *)node->GetData();
 285         view->OnChangeFilename();
 286         node = node->GetNext();
 287     }
 288
 289     // Files that were not saved correctly are not added to the FileHistory.
 290     if (!OnSaveDocument(m_documentFile))
 291         return FALSE;
 292
 293    // A file that doesn't use the default extension of its document template cannot be opened
 294    // via the FileHistory, so we do not add it.
 295    if (docTemplate->FileMatchesTemplate(fileName))
 296    {
 297        GetDocumentManager()->AddFileToHistory(fileName);
 298    }
 299    else
 300    {
 301        // The user will probably not be able to open the file again, so
 302        // we could warn about the wrong file-extension here.
 303    }
 304    return TRUE;
 305 }
 306
 307 bool wxDocument::OnSaveDocument(const wxString& file)
 308 {
 309     if ( !file )
 310         return FALSE;
 311
 312     wxString msgTitle;
 313     if (wxTheApp->GetAppName() != wxT(""))
 314         msgTitle = wxTheApp->GetAppName();
 315     else
 316         msgTitle = wxString(_("File error"));
 317
 318 #if wxUSE_STD_IOSTREAM
 319     wxSTD ofstream store(file.mb_str());
 320     if (store.fail() || store.bad())
 321 #else
 322     wxFileOutputStream store(file);
 323     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 324 #endif
 325     {
 326         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 327                            GetDocumentWindow());
 328         // Saving error
 329         return FALSE;
 330     }
 331     if (!SaveObject(store))
 332     {
 333         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 334                            GetDocumentWindow());
 335         // Saving error
 336         return FALSE;
 337     }
 338     Modify(FALSE);
 339     SetFilename(file);
 340     SetDocumentSaved(TRUE);
 341 #ifdef __WXMAC__
 342     wxFileName fn(file) ;
 343     fn.MacSetDefaultTypeAndCreator() ;
 344 #endif
 345     return TRUE;
 346 }
 347
 348 bool wxDocument::OnOpenDocument(const wxString& file)
 349 {
 350     if (!OnSaveModified())
 351         return FALSE;
 352
 353     wxString msgTitle;
 354     if (wxTheApp->GetAppName() != wxT(""))
 355         msgTitle = wxTheApp->GetAppName();
 356     else
 357         msgTitle = wxString(_("File error"));
 358
 359 #if wxUSE_STD_IOSTREAM
 360     wxSTD ifstream store(file.mb_str());
 361     if (store.fail() || store.bad())
 362 #else
 363     wxFileInputStream store(file);
 364     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 365 #endif
 366     {
 367         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
 368                            GetDocumentWindow());
 369         return FALSE;
 370     }
 371 #if wxUSE_STD_IOSTREAM
 372     LoadObject(store);
 373     if ( !store && !store.eof() )
 374 #else
 375     int res = LoadObject(store).GetLastError();
 376     if ((res != wxSTREAM_NO_ERROR) &&
 377         (res != wxSTREAM_EOF))
 378 #endif
 379     {
 380         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
 381                            GetDocumentWindow());
 382         return FALSE;
 383     }
 384     SetFilename(file, TRUE);
 385     Modify(FALSE);
 386     m_savedYet = TRUE;
 387
 388     UpdateAllViews();
 389
 390     return TRUE;
 391 }
 392
 393 #if wxUSE_STD_IOSTREAM
 394 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 395 #else
 396 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 397 #endif
 398 {
 399     return stream;
 400 }
 401
 402 #if wxUSE_STD_IOSTREAM
 403 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 404 #else
 405 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 406 #endif
 407 {
 408     return stream;
 409 }
 410
 411 bool wxDocument::Revert()
 412 {
 413     return FALSE;
 414 }
 415
 416
 417 // Get title, or filename if no title, else unnamed
 418 bool wxDocument::GetPrintableName(wxString& buf) const
 419 {
 420     if (m_documentTitle != wxT(""))
 421     {
 422         buf = m_documentTitle;
 423         return TRUE;
 424     }
 425     else if (m_documentFile != wxT(""))
 426     {
 427         buf = wxFileNameFromPath(m_documentFile);
 428         return TRUE;
 429     }
 430     else
 431     {
 432         buf = _("unnamed");
 433         return TRUE;
 434     }
 435 }
 436
 437 wxWindow *wxDocument::GetDocumentWindow() const
 438 {
 439     wxView *view = GetFirstView();
 440     if (view)
 441         return view->GetFrame();
 442     else
 443         return wxTheApp->GetTopWindow();
 444 }
 445
 446 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 447 {
 448     return new wxCommandProcessor;
 449 }
 450
 451 // TRUE if safe to close
 452 bool wxDocument::OnSaveModified()
 453 {
 454     if (IsModified())
 455     {
 456         wxString title;
 457         GetPrintableName(title);
 458
 459         wxString msgTitle;
 460         if (wxTheApp->GetAppName() != wxT(""))
 461             msgTitle = wxTheApp->GetAppName();
 462         else
 463             msgTitle = wxString(_("Warning"));
 464
 465         wxString prompt;
 466         prompt.Printf(_("Do you want to save changes to document %s?"),
 467                 (const wxChar *)title);
 468         int res = wxMessageBox(prompt, msgTitle,
 469                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 470                 GetDocumentWindow());
 471         if (res == wxNO)
 472         {
 473             Modify(FALSE);
 474             return TRUE;
 475         }
 476         else if (res == wxYES)
 477             return Save();
 478         else if (res == wxCANCEL)
 479             return FALSE;
 480     }
 481     return TRUE;
 482 }
 483
 484 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 485 {
 486     return TRUE;
 487 }
 488
 489 bool wxDocument::AddView(wxView *view)
 490 {
 491     if (!m_documentViews.Member(view))
 492     {
 493         m_documentViews.Append(view);
 494         OnChangedViewList();
 495     }
 496     return TRUE;
 497 }
 498
 499 bool wxDocument::RemoveView(wxView *view)
 500 {
 501     (void)m_documentViews.DeleteObject(view);
 502     OnChangedViewList();
 503     return TRUE;
 504 }
 505
 506 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 507 {
 508     if (GetDocumentTemplate()->CreateView(this, flags))
 509         return TRUE;
 510     else
 511         return FALSE;
 512 }
 513
 514 // Called after a view is added or removed.
 515 // The default implementation deletes the document if
 516 // there are no more views.
 517 void wxDocument::OnChangedViewList()
 518 {
 519     if (m_documentViews.GetCount() == 0)
 520     {
 521         if (OnSaveModified())
 522         {
 523             delete this;
 524         }
 525     }
 526 }
 527
 528 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 529 {
 530     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 531     while (node)
 532     {
 533         wxView *view = (wxView *)node->GetData();
 534         if (view != sender)
 535             view->OnUpdate(sender, hint);
 536         node = node->GetNext();
 537     }
 538 }
 539
 540 void wxDocument::NotifyClosing()
 541 {
 542     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 543     while (node)
 544     {
 545         wxView *view = (wxView *)node->GetData();
 546         view->OnClosingDocument();
 547         node = node->GetNext();
 548     }
 549 }
 550
 551 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 552 {
 553     m_documentFile = filename;
 554     if ( notifyViews )
 555     {
 556         // Notify the views that the filename has changed
 557         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 558         while (node)
 559         {
 560             wxView *view = (wxView *)node->GetData();
 561             view->OnChangeFilename();
 562             node = node->GetNext();
 563         }
 564     }
 565 }
 566
 567 // ----------------------------------------------------------------------------
 568 // Document view
 569 // ----------------------------------------------------------------------------
 570
 571 wxView::wxView()
 572 {
 573     m_viewDocument = (wxDocument*) NULL;
 574
 575     m_viewFrame = (wxFrame *) NULL;
 576 }
 577
 578 wxView::~wxView()
 579 {
 580     GetDocumentManager()->ActivateView(this, FALSE);
 581     m_viewDocument->RemoveView(this);
 582 }
 583
 584 // Extend event processing to search the document's event table
 585 bool wxView::ProcessEvent(wxEvent& event)
 586 {
 587     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 588         return wxEvtHandler::ProcessEvent(event);
 589
 590     return TRUE;
 591 }
 592
 593 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 594 {
 595 }
 596
 597 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 598 {
 599     OnDraw(dc);
 600 }
 601
 602 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 603 {
 604 }
 605
 606 void wxView::OnChangeFilename()
 607 {
 608     if (GetFrame() && GetDocument())
 609     {
 610         wxString title;
 611
 612         GetDocument()->GetPrintableName(title);
 613
 614         GetFrame()->SetTitle(title);
 615     }
 616 }
 617
 618 void wxView::SetDocument(wxDocument *doc)
 619 {
 620     m_viewDocument = doc;
 621     if (doc)
 622         doc->AddView(this);
 623 }
 624
 625 bool wxView::Close(bool deleteWindow)
 626 {
 627     if (OnClose(deleteWindow))
 628         return TRUE;
 629     else
 630         return FALSE;
 631 }
 632
 633 void wxView::Activate(bool activate)
 634 {
 635     if (GetDocument() && GetDocumentManager())
 636     {
 637         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 638         GetDocumentManager()->ActivateView(this, activate);
 639     }
 640 }
 641
 642 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 643 {
 644     return GetDocument() ? GetDocument()->Close() : TRUE;
 645 }
 646
 647 #if wxUSE_PRINTING_ARCHITECTURE
 648 wxPrintout *wxView::OnCreatePrintout()
 649 {
 650     return new wxDocPrintout(this);
 651 }
 652 #endif // wxUSE_PRINTING_ARCHITECTURE
 653
 654 // ----------------------------------------------------------------------------
 655 // wxDocTemplate
 656 // ----------------------------------------------------------------------------
 657
 658 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 659                              const wxString& descr,
 660                              const wxString& filter,
 661                              const wxString& dir,
 662                              const wxString& ext,
 663                              const wxString& docTypeName,
 664                              const wxString& viewTypeName,
 665                              wxClassInfo *docClassInfo,
 666                              wxClassInfo *viewClassInfo,
 667                              long flags)
 668 {
 669     m_documentManager = manager;
 670     m_description = descr;
 671     m_directory = dir;
 672     m_defaultExt = ext;
 673     m_fileFilter = filter;
 674     m_flags = flags;
 675     m_docTypeName = docTypeName;
 676     m_viewTypeName = viewTypeName;
 677     m_documentManager->AssociateTemplate(this);
 678
 679     m_docClassInfo = docClassInfo;
 680     m_viewClassInfo = viewClassInfo;
 681 }
 682
 683 wxDocTemplate::~wxDocTemplate()
 684 {
 685     m_documentManager->DisassociateTemplate(this);
 686 }
 687
 688 // Tries to dynamically construct an object of the right class.
 689 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 690 {
 691     if (!m_docClassInfo)
 692         return (wxDocument *) NULL;
 693     wxDocument *doc = (wxDocument *)m_docClassInfo->CreateObject();
 694     doc->SetFilename(path);
 695     doc->SetDocumentTemplate(this);
 696     GetDocumentManager()->AddDocument(doc);
 697     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 698
 699     if (doc->OnCreate(path, flags))
 700         return doc;
 701     else
 702     {
 703         if (GetDocumentManager()->GetDocuments().Member(doc))
 704             doc->DeleteAllViews();
 705         return (wxDocument *) NULL;
 706     }
 707 }
 708
 709 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 710 {
 711     if (!m_viewClassInfo)
 712         return (wxView *) NULL;
 713     wxView *view = (wxView *)m_viewClassInfo->CreateObject();
 714     view->SetDocument(doc);
 715     if (view->OnCreate(doc, flags))
 716     {
 717         return view;
 718     }
 719     else
 720     {
 721         delete view;
 722         return (wxView *) NULL;
 723     }
 724 }
 725
 726 // The default (very primitive) format detection: check is the extension is
 727 // that of the template
 728 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 729 {
 730     return GetDefaultExtension().IsSameAs(FindExtension(path));
 731 }
 732
 733 // ----------------------------------------------------------------------------
 734 // wxDocManager
 735 // ----------------------------------------------------------------------------
 736
 737 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 738     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 739     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 740     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 741     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 742     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 743     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 744     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 745     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 746     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 747
 748     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 749     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 750     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 751     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 752     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 753     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 754     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 755     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 756     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 757
 758 #if wxUSE_PRINTING_ARCHITECTURE
 759     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 760     EVT_MENU(wxID_PRINT_SETUP, wxDocManager::OnPrintSetup)
 761     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 762
 763     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 764     EVT_UPDATE_UI(wxID_PRINT_SETUP, wxDocManager::OnUpdatePrintSetup)
 765     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 766 #endif
 767 END_EVENT_TABLE()
 768
 769 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 770
 771 wxDocManager::wxDocManager(long flags, bool initialize)
 772 {
 773     m_defaultDocumentNameCounter = 1;
 774     m_flags = flags;
 775     m_currentView = (wxView *) NULL;
 776     m_maxDocsOpen = 10000;
 777     m_fileHistory = (wxFileHistory *) NULL;
 778     if (initialize)
 779         Initialize();
 780     sm_docManager = this;
 781 }
 782
 783 wxDocManager::~wxDocManager()
 784 {
 785     Clear();
 786     if (m_fileHistory)
 787         delete m_fileHistory;
 788     sm_docManager = (wxDocManager*) NULL;
 789 }
 790
 791 // closes the specified document
 792 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 793 {
 794     if (doc->Close() || force)
 795     {
 796         // Implicitly deletes the document when
 797         // the last view is deleted
 798         doc->DeleteAllViews();
 799
 800         // Check we're really deleted
 801         if (m_docs.Member(doc))
 802             delete doc;
 803
 804         return TRUE;
 805     }
 806     return FALSE;
 807 }
 808
 809 bool wxDocManager::CloseDocuments(bool force)
 810 {
 811     wxList::compatibility_iterator node = m_docs.GetFirst();
 812     while (node)
 813     {
 814         wxDocument *doc = (wxDocument *)node->GetData();
 815         wxList::compatibility_iterator next = node->GetNext();
 816
 817         if (!CloseDocument(doc, force))
 818             return FALSE;
 819
 820         // This assumes that documents are not connected in
 821         // any way, i.e. deleting one document does NOT
 822         // delete another.
 823         node = next;
 824     }
 825     return TRUE;
 826 }
 827
 828 bool wxDocManager::Clear(bool force)
 829 {
 830     if (!CloseDocuments(force))
 831         return FALSE;
 832
 833     wxList::compatibility_iterator node = m_templates.GetFirst();
 834     while (node)
 835     {
 836         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 837         wxList::compatibility_iterator next = node->GetNext();
 838         delete templ;
 839         node = next;
 840     }
 841     return TRUE;
 842 }
 843
 844 bool wxDocManager::Initialize()
 845 {
 846     m_fileHistory = OnCreateFileHistory();
 847     return TRUE;
 848 }
 849
 850 wxFileHistory *wxDocManager::OnCreateFileHistory()
 851 {
 852     return new wxFileHistory;
 853 }
 854
 855 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 856 {
 857     wxDocument *doc = GetCurrentDocument();
 858     if (!doc)
 859         return;
 860     if (doc->Close())
 861     {
 862         doc->DeleteAllViews();
 863         if (m_docs.Member(doc))
 864             delete doc;
 865     }
 866 }
 867
 868 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 869 {
 870     CloseDocuments(FALSE);
 871 }
 872
 873 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 874 {
 875     CreateDocument( wxT(""), wxDOC_NEW );
 876 }
 877
 878 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 879 {
 880     if ( !CreateDocument( wxT(""), 0) )
 881     {
 882         OnOpenFileFailure();
 883     }
 884 }
 885
 886 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 887 {
 888     wxDocument *doc = GetCurrentDocument();
 889     if (!doc)
 890         return;
 891     doc->Revert();
 892 }
 893
 894 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 895 {
 896     wxDocument *doc = GetCurrentDocument();
 897     if (!doc)
 898         return;
 899     doc->Save();
 900 }
 901
 902 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
 903 {
 904     wxDocument *doc = GetCurrentDocument();
 905     if (!doc)
 906         return;
 907     doc->SaveAs();
 908 }
 909
 910 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
 911 {
 912 #if wxUSE_PRINTING_ARCHITECTURE
 913     wxView *view = GetCurrentView();
 914     if (!view)
 915         return;
 916
 917     wxPrintout *printout = view->OnCreatePrintout();
 918     if (printout)
 919     {
 920         wxPrinter printer;
 921         printer.Print(view->GetFrame(), printout, TRUE);
 922
 923         delete printout;
 924     }
 925 #endif // wxUSE_PRINTING_ARCHITECTURE
 926 }
 927
 928 void wxDocManager::OnPrintSetup(wxCommandEvent& WXUNUSED(event))
 929 {
 930 #if wxUSE_PRINTING_ARCHITECTURE
 931     wxWindow *parentWin = wxTheApp->GetTopWindow();
 932     wxView *view = GetCurrentView();
 933     if (view)
 934         parentWin = view->GetFrame();
 935
 936     wxPrintDialogData data;
 937
 938     wxPrintDialog printerDialog(parentWin, &data);
 939     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 940     printerDialog.ShowModal();
 941 #endif // wxUSE_PRINTING_ARCHITECTURE
 942 }
 943
 944 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
 945 {
 946 #if wxUSE_PRINTING_ARCHITECTURE
 947     wxView *view = GetCurrentView();
 948     if (!view)
 949         return;
 950
 951     wxPrintout *printout = view->OnCreatePrintout();
 952     if (printout)
 953     {
 954         // Pass two printout objects: for preview, and possible printing.
 955         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
 956         if ( !preview->Ok() )
 957         {
 958             delete preview;
 959             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
 960             return;
 961         }
 962
 963         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
 964                 wxPoint(100, 100), wxSize(600, 650));
 965         frame->Centre(wxBOTH);
 966         frame->Initialize();
 967         frame->Show(TRUE);
 968     }
 969 #endif // wxUSE_PRINTING_ARCHITECTURE
 970 }
 971
 972 void wxDocManager::OnUndo(wxCommandEvent& event)
 973 {
 974     wxDocument *doc = GetCurrentDocument();
 975     if (!doc)
 976         return;
 977     if (doc->GetCommandProcessor())
 978         doc->GetCommandProcessor()->Undo();
 979     else
 980         event.Skip();
 981 }
 982
 983 void wxDocManager::OnRedo(wxCommandEvent& event)
 984 {
 985     wxDocument *doc = GetCurrentDocument();
 986     if (!doc)
 987         return;
 988     if (doc->GetCommandProcessor())
 989         doc->GetCommandProcessor()->Redo();
 990     else
 991         event.Skip();
 992 }
 993
 994 // Handlers for UI update commands
 995
 996 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
 997 {
 998     event.Enable( TRUE );
 999 }
1000
1001 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1002 {
1003     wxDocument *doc = GetCurrentDocument();
1004     event.Enable( (doc != (wxDocument*) NULL) );
1005 }
1006
1007 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1008 {
1009     wxDocument *doc = GetCurrentDocument();
1010     event.Enable( (doc != (wxDocument*) NULL) );
1011 }
1012
1013 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1014 {
1015     event.Enable( TRUE );
1016 }
1017
1018 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1019 {
1020     wxDocument *doc = GetCurrentDocument();
1021     event.Enable( doc && doc->IsModified() );
1022 }
1023
1024 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1025 {
1026     wxDocument *doc = GetCurrentDocument();
1027     event.Enable( (doc != (wxDocument*) NULL) );
1028 }
1029
1030 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1031 {
1032     wxDocument *doc = GetCurrentDocument();
1033     if (!doc)
1034         event.Enable(FALSE);
1035     else if (!doc->GetCommandProcessor())
1036         event.Skip();
1037     else
1038     {
1039         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1040         doc->GetCommandProcessor()->SetMenuStrings();
1041     }
1042 }
1043
1044 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1045 {
1046     wxDocument *doc = GetCurrentDocument();
1047     if (!doc)
1048         event.Enable(FALSE);
1049     else if (!doc->GetCommandProcessor())
1050         event.Skip();
1051     else
1052     {
1053         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1054         doc->GetCommandProcessor()->SetMenuStrings();
1055     }
1056 }
1057
1058 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1059 {
1060     wxDocument *doc = GetCurrentDocument();
1061     event.Enable( (doc != (wxDocument*) NULL) );
1062 }
1063
1064 void wxDocManager::OnUpdatePrintSetup(wxUpdateUIEvent& event)
1065 {
1066     event.Enable( TRUE );
1067 }
1068
1069 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1070 {
1071     wxDocument *doc = GetCurrentDocument();
1072     event.Enable( (doc != (wxDocument*) NULL) );
1073 }
1074
1075 wxView *wxDocManager::GetCurrentView() const
1076 {
1077     if (m_currentView)
1078         return m_currentView;
1079     if (m_docs.GetCount() == 1)
1080     {
1081         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1082         return doc->GetFirstView();
1083     }
1084     return (wxView *) NULL;
1085 }
1086
1087 // Extend event processing to search the view's event table
1088 bool wxDocManager::ProcessEvent(wxEvent& event)
1089 {
1090     wxView* view = GetCurrentView();
1091     if (view)
1092     {
1093         if (view->ProcessEvent(event))
1094             return TRUE;
1095     }
1096     return wxEvtHandler::ProcessEvent(event);
1097 }
1098
1099 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1100 {
1101     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1102     int               n = 0;
1103
1104     for (size_t i = 0; i < m_templates.GetCount(); i++)
1105     {
1106         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1107         if (temp->IsVisible())
1108         {
1109             templates[n] = temp;
1110             n ++;
1111         }
1112     }
1113     if (n == 0)
1114     {
1115         delete[] templates;
1116         return (wxDocument *) NULL;
1117     }
1118
1119     wxDocument* docToClose = NULL;
1120
1121     // If we've reached the max number of docs, close the
1122     // first one.
1123     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1124     {
1125         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1126         docToClose = doc;
1127     }
1128
1129     // New document: user chooses a template, unless there's only one.
1130     if (flags & wxDOC_NEW)
1131     {
1132         if (n == 1)
1133         {
1134             if (docToClose)
1135             {
1136                 if (!CloseDocument(docToClose, FALSE))
1137                 {
1138                     delete[] templates;
1139                     return NULL;
1140                 }
1141             }
1142
1143             wxDocTemplate *temp = templates[0];
1144             delete[] templates;
1145             wxDocument *newDoc = temp->CreateDocument(path, flags);
1146
1147             if (newDoc)
1148             {
1149                 newDoc->SetDocumentName(temp->GetDocumentName());
1150                 newDoc->SetDocumentTemplate(temp);
1151                 newDoc->OnNewDocument();
1152             }
1153             return newDoc;
1154         }
1155
1156         wxDocTemplate *temp = SelectDocumentType(templates, n);
1157         delete[] templates;
1158         if (temp)
1159         {
1160             if (docToClose)
1161             {
1162                 if (!CloseDocument(docToClose, FALSE))
1163                 {
1164                     return NULL;
1165                 }
1166             }
1167
1168             wxDocument *newDoc = temp->CreateDocument(path, flags);
1169
1170             if (newDoc)
1171             {
1172                 newDoc->SetDocumentName(temp->GetDocumentName());
1173                 newDoc->SetDocumentTemplate(temp);
1174                 newDoc->OnNewDocument();
1175             }
1176             return newDoc;
1177         }
1178         else
1179             return (wxDocument *) NULL;
1180     }
1181
1182     // Existing document
1183     wxDocTemplate *temp;
1184
1185     wxString path2(wxT(""));
1186     if (path != wxT(""))
1187         path2 = path;
1188
1189     if (flags & wxDOC_SILENT)
1190     {
1191         temp = FindTemplateForPath(path2);
1192         if (!temp)
1193         {
1194             // Since we do not add files with non-default extensions to the FileHistory this
1195             // can only happen if the application changes the allowed templates in runtime.
1196             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1197                                 _("Open File"),
1198                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1199         }
1200     }
1201     else
1202         temp = SelectDocumentPath(templates, n, path2, flags);
1203
1204     delete[] templates;
1205
1206     if (temp)
1207     {
1208         if (docToClose)
1209         {
1210             if (!CloseDocument(docToClose, FALSE))
1211             {
1212                 return NULL;
1213             }
1214         }
1215
1216         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1217         if (newDoc)
1218         {
1219             newDoc->SetDocumentName(temp->GetDocumentName());
1220             newDoc->SetDocumentTemplate(temp);
1221             if (!newDoc->OnOpenDocument(path2))
1222             {
1223                 newDoc->DeleteAllViews();
1224                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1225                 return (wxDocument *) NULL;
1226             }
1227             // A file that doesn't use the default extension of its document
1228             // template cannot be opened via the FileHistory, so we do not
1229             // add it.
1230             if (temp->FileMatchesTemplate(path2))
1231                 AddFileToHistory(path2);
1232         }
1233         return newDoc;
1234     }
1235
1236     return (wxDocument *) NULL;
1237 }
1238
1239 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1240 {
1241     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1242     int               n =0;
1243
1244     for (size_t i = 0; i < m_templates.GetCount(); i++)
1245     {
1246         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1247         if (temp->IsVisible())
1248         {
1249             if (temp->GetDocumentName() == doc->GetDocumentName())
1250             {
1251                 templates[n] = temp;
1252                 n ++;
1253             }
1254         }
1255     }
1256     if (n == 0)
1257     {
1258         delete[] templates;
1259         return (wxView *) NULL;
1260     }
1261     if (n == 1)
1262     {
1263         wxDocTemplate *temp = templates[0];
1264         delete[] templates;
1265         wxView *view = temp->CreateView(doc, flags);
1266         if (view)
1267             view->SetViewName(temp->GetViewName());
1268         return view;
1269     }
1270
1271     wxDocTemplate *temp = SelectViewType(templates, n);
1272     delete[] templates;
1273     if (temp)
1274     {
1275         wxView *view = temp->CreateView(doc, flags);
1276         if (view)
1277             view->SetViewName(temp->GetViewName());
1278         return view;
1279     }
1280     else
1281         return (wxView *) NULL;
1282 }
1283
1284 // Not yet implemented
1285 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1286 {
1287 }
1288
1289 // Not yet implemented
1290 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1291 {
1292     return FALSE;
1293 }
1294
1295 wxDocument *wxDocManager::GetCurrentDocument() const
1296 {
1297     wxView *view = GetCurrentView();
1298     if (view)
1299         return view->GetDocument();
1300     else
1301         return (wxDocument *) NULL;
1302 }
1303
1304 // Make a default document name
1305 bool wxDocManager::MakeDefaultName(wxString& name)
1306 {
1307     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1308     m_defaultDocumentNameCounter++;
1309
1310     return TRUE;
1311 }
1312
1313 // Make a frame title (override this to do something different)
1314 // If docName is empty, a document is not currently active.
1315 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1316 {
1317     wxString appName = wxTheApp->GetAppName();
1318     wxString title;
1319     if (!doc)
1320         title = appName;
1321     else
1322     {
1323         wxString docName;
1324         doc->GetPrintableName(docName);
1325         title = docName + wxString(_(" - ")) + appName;
1326     }
1327     return title;
1328 }
1329
1330
1331 // Not yet implemented
1332 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1333 {
1334     return (wxDocTemplate *) NULL;
1335 }
1336
1337 // File history management
1338 void wxDocManager::AddFileToHistory(const wxString& file)
1339 {
1340     if (m_fileHistory)
1341         m_fileHistory->AddFileToHistory(file);
1342 }
1343
1344 void wxDocManager::RemoveFileFromHistory(size_t i)
1345 {
1346     if (m_fileHistory)
1347         m_fileHistory->RemoveFileFromHistory(i);
1348 }
1349
1350 wxString wxDocManager::GetHistoryFile(size_t i) const
1351 {
1352     wxString histFile;
1353
1354     if (m_fileHistory)
1355         histFile = m_fileHistory->GetHistoryFile(i);
1356
1357     return histFile;
1358 }
1359
1360 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1361 {
1362     if (m_fileHistory)
1363         m_fileHistory->UseMenu(menu);
1364 }
1365
1366 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1367 {
1368     if (m_fileHistory)
1369         m_fileHistory->RemoveMenu(menu);
1370 }
1371
1372 #if wxUSE_CONFIG
1373 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1374 {
1375     if (m_fileHistory)
1376         m_fileHistory->Load(config);
1377 }
1378
1379 void wxDocManager::FileHistorySave(wxConfigBase& config)
1380 {
1381     if (m_fileHistory)
1382         m_fileHistory->Save(config);
1383 }
1384 #endif
1385
1386 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1387 {
1388     if (m_fileHistory)
1389         m_fileHistory->AddFilesToMenu(menu);
1390 }
1391
1392 void wxDocManager::FileHistoryAddFilesToMenu()
1393 {
1394     if (m_fileHistory)
1395         m_fileHistory->AddFilesToMenu();
1396 }
1397
1398 size_t wxDocManager::GetHistoryFilesCount() const
1399 {
1400     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1401 }
1402
1403
1404 // Find out the document template via matching in the document file format
1405 // against that of the template
1406 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1407 {
1408     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1409
1410     // Find the template which this extension corresponds to
1411     for (size_t i = 0; i < m_templates.GetCount(); i++)
1412     {
1413         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1414         if ( temp->FileMatchesTemplate(path) )
1415         {
1416             theTemplate = temp;
1417             break;
1418         }
1419     }
1420     return theTemplate;
1421 }
1422
1423 // Try to get a more suitable parent frame than the top window,
1424 // for selection dialogs. Otherwise you may get an unexpected
1425 // window being activated when a dialog is shown.
1426 static wxWindow* wxFindSuitableParent()
1427 {
1428     wxWindow* parent = wxTheApp->GetTopWindow();
1429
1430     wxWindow* focusWindow = wxWindow::FindFocus();
1431     if (focusWindow)
1432     {
1433         while (focusWindow &&
1434                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1435                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1436
1437             focusWindow = focusWindow->GetParent();
1438
1439         if (focusWindow)
1440             parent = focusWindow;
1441     }
1442     return parent;
1443 }
1444
1445 // Prompts user to open a file, using file specs in templates.
1446 // Must extend the file selector dialog or implement own; OR
1447 // match the extension to the template extension.
1448
1449 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1450 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1451                                                 int noTemplates,
1452 #else
1453                                                 int WXUNUSED(noTemplates),
1454 #endif
1455                                                 wxString& path,
1456                                                 long WXUNUSED(flags),
1457                                                 bool WXUNUSED(save))
1458 {
1459     // We can only have multiple filters in Windows and GTK
1460 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1461     wxString descrBuf;
1462
1463     int i;
1464     for (i = 0; i < noTemplates; i++)
1465     {
1466         if (templates[i]->IsVisible())
1467         {
1468             // add a '|' to separate this filter from the previous one
1469             if ( !descrBuf.IsEmpty() )
1470                 descrBuf << wxT('|');
1471
1472             descrBuf << templates[i]->GetDescription()
1473                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1474                 << templates[i]->GetFileFilter();
1475         }
1476     }
1477 #else
1478     wxString descrBuf = wxT("*.*");
1479 #endif
1480
1481     int FilterIndex = -1;
1482
1483     wxWindow* parent = wxFindSuitableParent();
1484
1485     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1486                                         m_lastDirectory,
1487                                         wxT(""),
1488                                         &FilterIndex,
1489                                         descrBuf,
1490                                         0,
1491                                         parent);
1492
1493     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1494     if (!pathTmp.IsEmpty())
1495     {
1496         if (!wxFileExists(pathTmp))
1497         {
1498             wxString msgTitle;
1499             if (!wxTheApp->GetAppName().IsEmpty())
1500                 msgTitle = wxTheApp->GetAppName();
1501             else
1502                 msgTitle = wxString(_("File error"));
1503
1504             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1505                 parent);
1506
1507             path = wxT("");
1508             return (wxDocTemplate *) NULL;
1509         }
1510         m_lastDirectory = wxPathOnly(pathTmp);
1511
1512         path = pathTmp;
1513
1514         // first choose the template using the extension, if this fails (i.e.
1515         // wxFileSelectorEx() didn't fill it), then use the path
1516         if ( FilterIndex != -1 )
1517             theTemplate = templates[FilterIndex];
1518         if ( !theTemplate )
1519             theTemplate = FindTemplateForPath(path);
1520         if ( !theTemplate )
1521         {
1522             // Since we do not add files with non-default extensions to the FileHistory this
1523             // can only happen if the application changes the allowed templates in runtime.
1524             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1525                                 _("Open File"),
1526                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1527         }
1528     }
1529     else
1530     {
1531         path = wxT("");
1532     }
1533
1534     return theTemplate;
1535 }
1536
1537 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1538                                                 int noTemplates, bool sort)
1539 {
1540     wxArrayString strings;
1541     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1542     int i;
1543     int n = 0;
1544
1545     for (i = 0; i < noTemplates; i++)
1546     {
1547         if (templates[i]->IsVisible())
1548         {
1549             int j;
1550             bool want = TRUE;
1551             for (j = 0; j < n; j++)
1552             {
1553                 //filter out NOT unique documents + view combinations
1554                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1555                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1556                    )
1557                     want = FALSE;
1558             }
1559
1560             if ( want )
1561             {
1562                 strings.Add(templates[i]->m_description);
1563
1564                 data[n] = templates[i];
1565                 n ++;
1566             }
1567         }
1568     }  // for
1569
1570     if (sort)
1571     {
1572         strings.Sort(wxStringSortAscending);
1573         // Yes, this will be slow, but template lists
1574         // are typically short.
1575         int j;
1576         n = strings.Count();
1577         for (i = 0; i < n; i++)
1578         {
1579             for (j = 0; j < noTemplates; j++)
1580             {
1581                 if (strings[i] == templates[j]->m_description)
1582                     data[i] = templates[j];
1583             }
1584         }
1585     }
1586
1587     wxDocTemplate *theTemplate;
1588
1589     switch ( n )
1590     {
1591         case 0:
1592             // no visible templates, hence nothing to choose from
1593             theTemplate = NULL;
1594             break;
1595
1596         case 1:
1597             // don't propose the user to choose if he heas no choice
1598             theTemplate = data[0];
1599             break;
1600
1601         default:
1602             // propose the user to choose one of several
1603             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1604                           (
1605                             _("Select a document template"),
1606                             _("Templates"),
1607                             strings,
1608                             (void **)data,
1609                             wxFindSuitableParent()
1610                           );
1611     }
1612
1613     delete[] data;
1614
1615     return theTemplate;
1616 }
1617
1618 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1619                                             int noTemplates, bool sort)
1620 {
1621     wxArrayString strings;
1622     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1623     int i;
1624     int n = 0;
1625
1626     for (i = 0; i < noTemplates; i++)
1627     {
1628         wxDocTemplate *templ = templates[i];
1629         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1630         {
1631             int j;
1632             bool want = TRUE;
1633             for (j = 0; j < n; j++)
1634             {
1635                 //filter out NOT unique views
1636                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1637                     want = FALSE;
1638             }
1639
1640             if ( want )
1641             {
1642                 strings.Add(templ->m_viewTypeName);
1643                 data[n] = templ;
1644                 n ++;
1645             }
1646         }
1647     }
1648
1649     if (sort)
1650     {
1651         strings.Sort(wxStringSortAscending);
1652         // Yes, this will be slow, but template lists
1653         // are typically short.
1654         int j;
1655         n = strings.Count();
1656         for (i = 0; i < n; i++)
1657         {
1658             for (j = 0; j < noTemplates; j++)
1659             {
1660                 if (strings[i] == templates[j]->m_viewTypeName)
1661                     data[i] = templates[j];
1662             }
1663         }
1664     }
1665
1666     wxDocTemplate *theTemplate;
1667
1668     // the same logic as above
1669     switch ( n )
1670     {
1671         case 0:
1672             theTemplate = (wxDocTemplate *)NULL;
1673             break;
1674
1675         case 1:
1676             theTemplate = data[0];
1677             break;
1678
1679         default:
1680             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1681                           (
1682                             _("Select a document view"),
1683                             _("Views"),
1684                             strings,
1685                             (void **)data,
1686                             wxFindSuitableParent()
1687                           );
1688
1689     }
1690
1691     delete[] data;
1692     return theTemplate;
1693 }
1694
1695 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1696 {
1697     if (!m_templates.Member(temp))
1698         m_templates.Append(temp);
1699 }
1700
1701 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1702 {
1703     m_templates.DeleteObject(temp);
1704 }
1705
1706 // Add and remove a document from the manager's list
1707 void wxDocManager::AddDocument(wxDocument *doc)
1708 {
1709     if (!m_docs.Member(doc))
1710         m_docs.Append(doc);
1711 }
1712
1713 void wxDocManager::RemoveDocument(wxDocument *doc)
1714 {
1715     m_docs.DeleteObject(doc);
1716 }
1717
1718 // Views or windows should inform the document manager
1719 // when a view is going in or out of focus
1720 void wxDocManager::ActivateView(wxView *view, bool activate)
1721 {
1722     if ( activate )
1723     {
1724         m_currentView = view;
1725     }
1726     else // deactivate
1727     {
1728         if ( m_currentView == view )
1729         {
1730             // don't keep stale pointer
1731             m_currentView = (wxView *) NULL;
1732         }
1733     }
1734 }
1735
1736 // ----------------------------------------------------------------------------
1737 // Default document child frame
1738 // ----------------------------------------------------------------------------
1739
1740 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1741     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1742     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1743 END_EVENT_TABLE()
1744
1745 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1746                                  wxView *view,
1747                                  wxFrame *frame,
1748                                  wxWindowID id,
1749                                  const wxString& title,
1750                                  const wxPoint& pos,
1751                                  const wxSize& size,
1752                                  long style,
1753                                  const wxString& name)
1754                : wxFrame(frame, id, title, pos, size, style, name)
1755 {
1756     m_childDocument = doc;
1757     m_childView = view;
1758     if (view)
1759         view->SetFrame(this);
1760 }
1761
1762 wxDocChildFrame::~wxDocChildFrame()
1763 {
1764 }
1765
1766 // Extend event processing to search the view's event table
1767 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1768 {
1769     if (m_childView)
1770         m_childView->Activate(TRUE);
1771
1772     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1773     {
1774         // Only hand up to the parent if it's a menu command
1775         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1776             return wxEvtHandler::ProcessEvent(event);
1777         else
1778             return TRUE;
1779     }
1780     else
1781         return TRUE;
1782 }
1783
1784 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1785 {
1786     wxFrame::OnActivate(event);
1787
1788     if (m_childView)
1789         m_childView->Activate(event.GetActive());
1790 }
1791
1792 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1793 {
1794     if (m_childView)
1795     {
1796         bool ans = event.CanVeto()
1797                     ? m_childView->Close(FALSE) // FALSE means don't delete associated window
1798                     : TRUE; // Must delete.
1799
1800         if (ans)
1801         {
1802             m_childView->Activate(FALSE);
1803             delete m_childView;
1804             m_childView = (wxView *) NULL;
1805             m_childDocument = (wxDocument *) NULL;
1806
1807             this->Destroy();
1808         }
1809         else
1810             event.Veto();
1811     }
1812     else
1813         event.Veto();
1814 }
1815
1816 // ----------------------------------------------------------------------------
1817 // Default parent frame
1818 // ----------------------------------------------------------------------------
1819
1820 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1821     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1822     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1823     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1824 END_EVENT_TABLE()
1825
1826 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1827                                    wxFrame *frame,
1828                                    wxWindowID id,
1829                                    const wxString& title,
1830                                    const wxPoint& pos,
1831                                    const wxSize& size,
1832                                    long style,
1833                                    const wxString& name)
1834                 : wxFrame(frame, id, title, pos, size, style, name)
1835 {
1836     m_docManager = manager;
1837 }
1838
1839 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1840 {
1841     Close();
1842 }
1843
1844 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1845 {
1846     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1847     wxString filename(m_docManager->GetHistoryFile(n));
1848     if ( !filename.IsEmpty() )
1849     {
1850         // verify that the file exists before doing anything else
1851         if ( wxFile::Exists(filename) )
1852         {
1853             // try to open it
1854             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
1855             {
1856                 // remove the file from the MRU list. The user should already be notified.
1857                 m_docManager->RemoveFileFromHistory(n);
1858
1859                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
1860                        filename.c_str());
1861             }
1862         }
1863         else
1864         {
1865             // remove the bogus filename from the MRU list and notify the user
1866             // about it
1867             m_docManager->RemoveFileFromHistory(n);
1868
1869             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1870                        filename.c_str());
1871         }
1872     }
1873 }
1874
1875 // Extend event processing to search the view's event table
1876 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1877 {
1878     // Try the document manager, then do default processing
1879     if (!m_docManager || !m_docManager->ProcessEvent(event))
1880         return wxEvtHandler::ProcessEvent(event);
1881     else
1882         return TRUE;
1883 }
1884
1885 // Define the behaviour for the frame closing
1886 // - must delete all frames except for the main one.
1887 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1888 {
1889     if (m_docManager->Clear(!event.CanVeto()))
1890     {
1891         this->Destroy();
1892     }
1893     else
1894         event.Veto();
1895 }
1896
1897 #if wxUSE_PRINTING_ARCHITECTURE
1898
1899 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1900              : wxPrintout(title)
1901 {
1902     m_printoutView = view;
1903 }
1904
1905 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1906 {
1907     wxDC *dc = GetDC();
1908
1909     // Get the logical pixels per inch of screen and printer
1910     int ppiScreenX, ppiScreenY;
1911     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1912     wxUnusedVar(ppiScreenY);
1913     int ppiPrinterX, ppiPrinterY;
1914     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1915     wxUnusedVar(ppiPrinterY);
1916
1917     // This scales the DC so that the printout roughly represents the
1918     // the screen scaling. The text point size _should_ be the right size
1919     // but in fact is too small for some reason. This is a detail that will
1920     // need to be addressed at some point but can be fudged for the
1921     // moment.
1922     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1923
1924     // Now we have to check in case our real page size is reduced
1925     // (e.g. because we're drawing to a print preview memory DC)
1926     int pageWidth, pageHeight;
1927     int w, h;
1928     dc->GetSize(&w, &h);
1929     GetPageSizePixels(&pageWidth, &pageHeight);
1930     wxUnusedVar(pageHeight);
1931
1932     // If printer pageWidth == current DC width, then this doesn't
1933     // change. But w might be the preview bitmap width, so scale down.
1934     float overallScale = scale * (float)(w/(float)pageWidth);
1935     dc->SetUserScale(overallScale, overallScale);
1936
1937     if (m_printoutView)
1938     {
1939         m_printoutView->OnDraw(dc);
1940     }
1941     return TRUE;
1942 }
1943
1944 bool wxDocPrintout::HasPage(int pageNum)
1945 {
1946     return (pageNum == 1);
1947 }
1948
1949 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1950 {
1951     if (!wxPrintout::OnBeginDocument(startPage, endPage))
1952         return FALSE;
1953
1954     return TRUE;
1955 }
1956
1957 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
1958 {
1959     *minPage = 1;
1960     *maxPage = 1;
1961     *selPageFrom = 1;
1962     *selPageTo = 1;
1963 }
1964
1965 #endif // wxUSE_PRINTING_ARCHITECTURE
1966
1967 // ----------------------------------------------------------------------------
1968 // File history processor
1969 // ----------------------------------------------------------------------------
1970
1971 static inline wxChar* MYcopystring(const wxString& s)
1972 {
1973     wxChar* copy = new wxChar[s.length() + 1];
1974     return wxStrcpy(copy, s.c_str());
1975 }
1976
1977 static inline wxChar* MYcopystring(const wxChar* s)
1978 {
1979     wxChar* copy = new wxChar[wxStrlen(s) + 1];
1980     return wxStrcpy(copy, s);
1981 }
1982
1983 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
1984 {
1985     m_fileMaxFiles = maxFiles;
1986     m_idBase = idBase;
1987     m_fileHistoryN = 0;
1988     m_fileHistory = new wxChar *[m_fileMaxFiles];
1989 }
1990
1991 wxFileHistory::~wxFileHistory()
1992 {
1993     size_t i;
1994     for (i = 0; i < m_fileHistoryN; i++)
1995         delete[] m_fileHistory[i];
1996     delete[] m_fileHistory;
1997 }
1998
1999 // File history management
2000 void wxFileHistory::AddFileToHistory(const wxString& file)
2001 {
2002     size_t i;
2003
2004     // Check we don't already have this file
2005     for (i = 0; i < m_fileHistoryN; i++)
2006     {
2007 #if defined( __WXMSW__ ) // Add any other OSes with case insensitive file names
2008         wxString testString;
2009         if ( m_fileHistory[i] )
2010             testString = m_fileHistory[i];
2011         if ( m_fileHistory[i] && ( file.Lower() == testString.Lower() ) )
2012 #else
2013         if ( m_fileHistory[i] && ( file == m_fileHistory[i] ) )
2014 #endif
2015         {
2016             // we do have it, move it to the top of the history
2017             RemoveFileFromHistory (i);
2018             AddFileToHistory (file);
2019             return;
2020         }
2021     }
2022
2023     // if we already have a full history, delete the one at the end
2024     if ( m_fileMaxFiles == m_fileHistoryN )
2025     {
2026         RemoveFileFromHistory (m_fileHistoryN - 1);
2027         AddFileToHistory (file);
2028         return;
2029     }
2030
2031     // Add to the project file history:
2032     // Move existing files (if any) down so we can insert file at beginning.
2033     if (m_fileHistoryN < m_fileMaxFiles)
2034     {
2035         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2036         while (node)
2037         {
2038             wxMenu* menu = (wxMenu*) node->GetData();
2039             if ( m_fileHistoryN == 0 && menu->GetMenuItemCount() )
2040             {
2041                 menu->AppendSeparator();
2042             }
2043             menu->Append(m_idBase+m_fileHistoryN, _("[EMPTY]"));
2044             node = node->GetNext();
2045         }
2046         m_fileHistoryN ++;
2047     }
2048     // Shuffle filenames down
2049     for (i = (m_fileHistoryN-1); i > 0; i--)
2050     {
2051         m_fileHistory[i] = m_fileHistory[i-1];
2052     }
2053     m_fileHistory[0] = MYcopystring(file);
2054
2055     // this is the directory of the last opened file
2056     wxString pathCurrent;
2057     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2058     for (i = 0; i < m_fileHistoryN; i++)
2059     {
2060         if ( m_fileHistory[i] )
2061         {
2062             // if in same directory just show the filename; otherwise the full
2063             // path
2064             wxString pathInMenu, path, filename, ext;
2065             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2066             if ( path == pathCurrent )
2067             {
2068                 pathInMenu = filename;
2069                 if ( !ext.empty() )
2070                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2071             }
2072             else
2073             {
2074                 // absolute path; could also set relative path
2075                 pathInMenu = m_fileHistory[i];
2076             }
2077
2078             wxString buf;
2079             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2080             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2081             while (node)
2082             {
2083                 wxMenu* menu = (wxMenu*) node->GetData();
2084                 menu->SetLabel(m_idBase + i, buf);
2085                 node = node->GetNext();
2086             }
2087         }
2088     }
2089 }
2090
2091 void wxFileHistory::RemoveFileFromHistory(size_t i)
2092 {
2093     wxCHECK_RET( i < m_fileHistoryN,
2094                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2095
2096     // delete the element from the array (could use memmove() too...)
2097     delete [] m_fileHistory[i];
2098
2099     size_t j;
2100     for ( j = i; j < m_fileHistoryN - 1; j++ )
2101     {
2102         m_fileHistory[j] = m_fileHistory[j + 1];
2103     }
2104
2105     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2106     while ( node )
2107     {
2108          wxMenu* menu = (wxMenu*) node->GetData();
2109
2110          // shuffle filenames up
2111          wxString buf;
2112          for ( j = i; j < m_fileHistoryN - 1; j++ )
2113          {
2114              buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2115              menu->SetLabel(m_idBase + j, buf);
2116          }
2117
2118          node = node->GetNext();
2119
2120         // delete the last menu item which is unused now
2121         wxWindowID lastItemId = m_idBase + m_fileHistoryN - 1;
2122         if (menu->FindItem(lastItemId))
2123         {
2124             menu->Delete(lastItemId);
2125         }
2126
2127         // delete the last separator too if no more files are left
2128         if ( m_fileHistoryN == 1 )
2129         {
2130             wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetLast();
2131             if ( node )
2132             {
2133                 wxMenuItem *menuItem = node->GetData();
2134                 if ( menuItem->IsSeparator() )
2135                 {
2136                     menu->Delete(menuItem);
2137                 }
2138                 //else: should we search backwards for the last separator?
2139             }
2140             //else: menu is empty somehow
2141         }
2142     }
2143
2144     m_fileHistoryN--;
2145 }
2146
2147 wxString wxFileHistory::GetHistoryFile(size_t i) const
2148 {
2149     wxString s;
2150     if ( i < m_fileHistoryN )
2151     {
2152         s = m_fileHistory[i];
2153     }
2154     else
2155     {
2156         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2157     }
2158
2159     return s;
2160 }
2161
2162 void wxFileHistory::UseMenu(wxMenu *menu)
2163 {
2164     if (!m_fileMenus.Member(menu))
2165         m_fileMenus.Append(menu);
2166 }
2167
2168 void wxFileHistory::RemoveMenu(wxMenu *menu)
2169 {
2170     m_fileMenus.DeleteObject(menu);
2171 }
2172
2173 #if wxUSE_CONFIG
2174 void wxFileHistory::Load(wxConfigBase& config)
2175 {
2176     m_fileHistoryN = 0;
2177     wxString buf;
2178     buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2179     wxString historyFile;
2180     while ((m_fileHistoryN < m_fileMaxFiles) && config.Read(buf, &historyFile) && (historyFile != wxT("")))
2181     {
2182         m_fileHistory[m_fileHistoryN] = MYcopystring((const wxChar*) historyFile);
2183         m_fileHistoryN ++;
2184         buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2185         historyFile = wxT("");
2186     }
2187     AddFilesToMenu();
2188 }
2189
2190 void wxFileHistory::Save(wxConfigBase& config)
2191 {
2192     size_t i;
2193     for (i = 0; i < m_fileMaxFiles; i++)
2194     {
2195         wxString buf;
2196         buf.Printf(wxT("file%d"), (int)i+1);
2197         if (i < m_fileHistoryN)
2198             config.Write(buf, wxString(m_fileHistory[i]));
2199         else
2200             config.Write(buf, wxEmptyString);
2201     }
2202 }
2203 #endif // wxUSE_CONFIG
2204
2205 void wxFileHistory::AddFilesToMenu()
2206 {
2207     if (m_fileHistoryN > 0)
2208     {
2209         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2210         while (node)
2211         {
2212             wxMenu* menu = (wxMenu*) node->GetData();
2213             if (menu->GetMenuItemCount())
2214             {
2215                 menu->AppendSeparator();
2216             }
2217
2218             size_t i;
2219             for (i = 0; i < m_fileHistoryN; i++)
2220             {
2221                 if (m_fileHistory[i])
2222                 {
2223                     wxString buf;
2224                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2225                     menu->Append(m_idBase+i, buf);
2226                 }
2227             }
2228             node = node->GetNext();
2229         }
2230     }
2231 }
2232
2233 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2234 {
2235     if (m_fileHistoryN > 0)
2236     {
2237         if (menu->GetMenuItemCount())
2238         {
2239             menu->AppendSeparator();
2240         }
2241
2242         size_t i;
2243         for (i = 0; i < m_fileHistoryN; i++)
2244         {
2245             if (m_fileHistory[i])
2246             {
2247                 wxString buf;
2248                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2249                 menu->Append(m_idBase+i, buf);
2250             }
2251         }
2252     }
2253 }
2254
2255 // ----------------------------------------------------------------------------
2256 // Permits compatibility with existing file formats and functions that
2257 // manipulate files directly
2258 // ----------------------------------------------------------------------------
2259
2260 #if wxUSE_STD_IOSTREAM
2261
2262 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2263 {
2264     wxFFile file(filename, _T("rb"));
2265     if ( !file.IsOpened() )
2266         return FALSE;
2267
2268     char buf[4096];
2269
2270     size_t nRead;
2271     do
2272     {
2273         nRead = file.Read(buf, WXSIZEOF(buf));
2274         if ( file.Error() )
2275             return FALSE;
2276
2277         stream.write(buf, nRead);
2278         if ( !stream )
2279             return FALSE;
2280     }
2281     while ( !file.Eof() );
2282
2283     return TRUE;
2284 }
2285
2286 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2287 {
2288     wxFFile file(filename, _T("wb"));
2289     if ( !file.IsOpened() )
2290         return FALSE;
2291
2292     char buf[4096];
2293     do
2294     {
2295         stream.read(buf, WXSIZEOF(buf));
2296         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2297         {
2298             if ( !file.Write(buf, stream.gcount()) )
2299                 return FALSE;
2300         }
2301     }
2302     while ( !stream.eof() );
2303
2304     return TRUE;
2305 }
2306
2307 #else // !wxUSE_STD_IOSTREAM
2308
2309 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2310 {
2311     wxFFile file(filename, _T("rb"));
2312     if ( !file.IsOpened() )
2313         return FALSE;
2314
2315     char buf[4096];
2316
2317     size_t nRead;
2318     do
2319     {
2320         nRead = file.Read(buf, WXSIZEOF(buf));
2321         if ( file.Error() )
2322             return FALSE;
2323
2324         stream.Write(buf, nRead);
2325         if ( !stream )
2326             return FALSE;
2327     }
2328     while ( !file.Eof() );
2329
2330     return TRUE;
2331 }
2332
2333 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2334 {
2335     wxFFile file(filename, _T("wb"));
2336     if ( !file.IsOpened() )
2337         return FALSE;
2338
2339     char buf[4096];
2340     do
2341     {
2342         stream.Read(buf, WXSIZEOF(buf));
2343
2344         const size_t nRead = stream.LastRead();
2345         if ( !nRead || !file.Write(buf, nRead) )
2346             return FALSE;
2347     }
2348     while ( !stream.Eof() );
2349
2350     return TRUE;
2351 }
2352
2353 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2354
2355 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
2356