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