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