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