src/common/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/docview.cpp
   3 // Purpose:     Document/view classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  21     #pragma implementation "docview.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28   #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_DOC_VIEW_ARCHITECTURE
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/string.h"
  35     #include "wx/utils.h"
  36     #include "wx/app.h"
  37     #include "wx/dc.h"
  38     #include "wx/dialog.h"
  39     #include "wx/menu.h"
  40     #include "wx/list.h"
  41     #include "wx/filedlg.h"
  42     #include "wx/intl.h"
  43     #include "wx/log.h"
  44 #endif
  45
  46 #include "wx/ffile.h"
  47
  48 #ifdef __WXMAC__
  49     #include "wx/filename.h"
  50 #endif
  51
  52 #ifdef __WXGTK__
  53     #include "wx/mdi.h"
  54 #endif
  55
  56 #if wxUSE_PRINTING_ARCHITECTURE
  57   #include "wx/prntbase.h"
  58   #include "wx/printdlg.h"
  59 #endif
  60
  61 #include "wx/msgdlg.h"
  62 #include "wx/choicdlg.h"
  63 #include "wx/docview.h"
  64 #include "wx/confbase.h"
  65 #include "wx/file.h"
  66 #include "wx/cmdproc.h"
  67
  68 #include <stdio.h>
  69 #include <string.h>
  70
  71 #if wxUSE_STD_IOSTREAM
  72   #include "wx/ioswrap.h"
  73   #if wxUSE_IOSTREAMH
  74     #include <fstream.h>
  75   #else
  76     #include <fstream>
  77   #endif
  78 #else
  79   #include "wx/wfstream.h"
  80 #endif
  81
  82 // ----------------------------------------------------------------------------
  83 // wxWidgets macros
  84 // ----------------------------------------------------------------------------
  85
  86 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  87 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  88 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  89 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  90 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  91 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  92
  93 #if wxUSE_PRINTING_ARCHITECTURE
  94     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  95 #endif
  96
  97 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  98
  99 // ----------------------------------------------------------------------------
 100 // function prototypes
 101 // ----------------------------------------------------------------------------
 102
 103 static inline wxString FindExtension(const wxChar *path);
 104 static wxWindow* wxFindSuitableParent(void);
 105
 106 // ----------------------------------------------------------------------------
 107 // local constants
 108 // ----------------------------------------------------------------------------
 109
 110 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 111
 112 // ============================================================================
 113 // implementation
 114 // ============================================================================
 115
 116 // ----------------------------------------------------------------------------
 117 // local functions
 118 // ----------------------------------------------------------------------------
 119
 120 static wxString FindExtension(const wxChar *path)
 121 {
 122     wxString ext;
 123     wxSplitPath(path, NULL, NULL, &ext);
 124
 125     // VZ: extensions are considered not case sensitive - is this really a good
 126     //     idea?
 127     return ext.MakeLower();
 128 }
 129
 130 // ----------------------------------------------------------------------------
 131 // Definition of wxDocument
 132 // ----------------------------------------------------------------------------
 133
 134 wxDocument::wxDocument(wxDocument *parent)
 135 {
 136     m_documentModified = false;
 137     m_documentParent = parent;
 138     m_documentTemplate = (wxDocTemplate *) NULL;
 139     m_commandProcessor = (wxCommandProcessor*) NULL;
 140     m_savedYet = false;
 141 }
 142
 143 bool wxDocument::DeleteContents()
 144 {
 145     return true;
 146 }
 147
 148 wxDocument::~wxDocument()
 149 {
 150     DeleteContents();
 151
 152     if (m_commandProcessor)
 153         delete m_commandProcessor;
 154
 155     if (GetDocumentManager())
 156         GetDocumentManager()->RemoveDocument(this);
 157
 158     // Not safe to do here, since it'll invoke virtual view functions
 159     // expecting to see valid derived objects: and by the time we get here,
 160     // we've called destructors higher up.
 161     //DeleteAllViews();
 162 }
 163
 164 bool wxDocument::Close()
 165 {
 166     if (OnSaveModified())
 167         return OnCloseDocument();
 168     else
 169         return false;
 170 }
 171
 172 bool wxDocument::OnCloseDocument()
 173 {
 174     // Tell all views that we're about to close
 175     NotifyClosing();
 176     DeleteContents();
 177     Modify(false);
 178     return true;
 179 }
 180
 181 // Note that this implicitly deletes the document when the last view is
 182 // deleted.
 183 bool wxDocument::DeleteAllViews()
 184 {
 185     wxDocManager* manager = GetDocumentManager();
 186
 187     // first check if all views agree to be closed
 188     const wxList::iterator end = m_documentViews.end();
 189     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 190     {
 191         wxView *view = (wxView *)*i;
 192         if ( !view->Close() )
 193             return false;
 194     }
 195
 196     // all views agreed to close, now do close them
 197     if ( m_documentViews.empty() )
 198     {
 199         // normally the document would be implicitly deleted when the last view
 200         // is, but if don't have any views, do it here instead
 201         if ( manager && manager->GetDocuments().Member(this) )
 202             delete this;
 203     }
 204     else // have views
 205     {
 206         // as we delete elements we iterate over, don't use the usual "from
 207         // begin to end" loop
 208         for ( ;; )
 209         {
 210             wxView *view = (wxView *)*m_documentViews.begin();
 211
 212             bool isLastOne = m_documentViews.size() == 1;
 213
 214             // this always deletes the node implicitly and if this is the last
 215             // view also deletes this object itself (also implicitly, great),
 216             // so we can't test for m_documentViews.empty() after calling this!
 217             delete view;
 218
 219             if ( isLastOne )
 220                 break;
 221         }
 222     }
 223
 224     return true;
 225 }
 226
 227 wxView *wxDocument::GetFirstView() const
 228 {
 229     if (m_documentViews.GetCount() == 0)
 230         return (wxView *) NULL;
 231     return (wxView *)m_documentViews.GetFirst()->GetData();
 232 }
 233
 234 wxDocManager *wxDocument::GetDocumentManager() const
 235 {
 236     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 237 }
 238
 239 bool wxDocument::OnNewDocument()
 240 {
 241     if (!OnSaveModified())
 242         return false;
 243
 244     if (OnCloseDocument()==false) return false;
 245     DeleteContents();
 246     Modify(false);
 247     SetDocumentSaved(false);
 248
 249     wxString name;
 250     GetDocumentManager()->MakeDefaultName(name);
 251     SetTitle(name);
 252     SetFilename(name, true);
 253
 254     return true;
 255 }
 256
 257 bool wxDocument::Save()
 258 {
 259     if (!IsModified() && m_savedYet)
 260         return true;
 261
 262     if ( m_documentFile.empty() || !m_savedYet )
 263         return SaveAs();
 264
 265     return OnSaveDocument(m_documentFile);
 266 }
 267
 268 bool wxDocument::SaveAs()
 269 {
 270     wxDocTemplate *docTemplate = GetDocumentTemplate();
 271     if (!docTemplate)
 272         return false;
 273
 274 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 275     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 276
 277     // Now see if there are some other template with identical view and document
 278     // classes, whose filters may also be used.
 279
 280     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 281     {
 282         wxList::compatibility_iterator node = wxDocManager::GetDocumentManager()->GetTemplates().GetFirst();
 283         while (node)
 284         {
 285             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 286
 287             if (t->IsVisible() && t != docTemplate &&
 288                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 289                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 290             {
 291                 // add a '|' to separate this filter from the previous one
 292                 if ( !filter.empty() )
 293                     filter << wxT('|');
 294
 295                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 296                        << t->GetFileFilter();
 297             }
 298
 299             node = node->GetNext();
 300         }
 301     }
 302 #else
 303     wxString filter = docTemplate->GetFileFilter() ;
 304 #endif
 305     wxString tmp = wxFileSelector(_("Save as"),
 306             docTemplate->GetDirectory(),
 307             wxFileNameFromPath(GetFilename()),
 308             docTemplate->GetDefaultExtension(),
 309             filter,
 310             wxSAVE | wxOVERWRITE_PROMPT,
 311             GetDocumentWindow());
 312
 313     if (tmp.empty())
 314         return false;
 315
 316     wxString fileName(tmp);
 317     wxString path, name, ext;
 318     wxSplitPath(fileName, & path, & name, & ext);
 319
 320     if (ext.empty())
 321     {
 322         fileName += wxT(".");
 323         fileName += docTemplate->GetDefaultExtension();
 324     }
 325
 326     SetFilename(fileName);
 327     SetTitle(wxFileNameFromPath(fileName));
 328
 329     // Notify the views that the filename has changed
 330     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 331     while (node)
 332     {
 333         wxView *view = (wxView *)node->GetData();
 334         view->OnChangeFilename();
 335         node = node->GetNext();
 336     }
 337
 338     // Files that were not saved correctly are not added to the FileHistory.
 339     if (!OnSaveDocument(m_documentFile))
 340         return false;
 341
 342    // A file that doesn't use the default extension of its document template cannot be opened
 343    // via the FileHistory, so we do not add it.
 344    if (docTemplate->FileMatchesTemplate(fileName))
 345    {
 346        GetDocumentManager()->AddFileToHistory(fileName);
 347    }
 348    else
 349    {
 350        // The user will probably not be able to open the file again, so
 351        // we could warn about the wrong file-extension here.
 352    }
 353    return true;
 354 }
 355
 356 bool wxDocument::OnSaveDocument(const wxString& file)
 357 {
 358     if ( !file )
 359         return false;
 360
 361     if ( !DoSaveDocument(file) )
 362         return false;
 363
 364     Modify(false);
 365     SetFilename(file);
 366     SetDocumentSaved(true);
 367 #ifdef __WXMAC__
 368     wxFileName fn(file) ;
 369     fn.MacSetDefaultTypeAndCreator() ;
 370 #endif
 371     return true;
 372 }
 373
 374 bool wxDocument::OnOpenDocument(const wxString& file)
 375 {
 376     if (!OnSaveModified())
 377         return false;
 378
 379     if ( !DoOpenDocument(file) )
 380         return false;
 381
 382     SetFilename(file, true);
 383     Modify(false);
 384     m_savedYet = true;
 385
 386     UpdateAllViews();
 387
 388     return true;
 389 }
 390
 391 #if wxUSE_STD_IOSTREAM
 392 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 393 #else
 394 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 395 #endif
 396 {
 397     return stream;
 398 }
 399
 400 #if wxUSE_STD_IOSTREAM
 401 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 402 #else
 403 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 404 #endif
 405 {
 406     return stream;
 407 }
 408
 409 bool wxDocument::Revert()
 410 {
 411     return false;
 412 }
 413
 414
 415 // Get title, or filename if no title, else unnamed
 416 bool wxDocument::GetPrintableName(wxString& buf) const
 417 {
 418     if (!m_documentTitle.empty())
 419     {
 420         buf = m_documentTitle;
 421         return true;
 422     }
 423     else if (!m_documentFile.empty())
 424     {
 425         buf = wxFileNameFromPath(m_documentFile);
 426         return true;
 427     }
 428     else
 429     {
 430         buf = _("unnamed");
 431         return true;
 432     }
 433 }
 434
 435 wxWindow *wxDocument::GetDocumentWindow() const
 436 {
 437     wxView *view = GetFirstView();
 438     if (view)
 439         return view->GetFrame();
 440     else
 441         return wxTheApp->GetTopWindow();
 442 }
 443
 444 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 445 {
 446     return new wxCommandProcessor;
 447 }
 448
 449 // true if safe to close
 450 bool wxDocument::OnSaveModified()
 451 {
 452     if (IsModified())
 453     {
 454         wxString title;
 455         GetPrintableName(title);
 456
 457         wxString msgTitle;
 458         if (!wxTheApp->GetAppName().empty())
 459             msgTitle = wxTheApp->GetAppName();
 460         else
 461             msgTitle = wxString(_("Warning"));
 462
 463         wxString prompt;
 464         prompt.Printf(_("Do you want to save changes to document %s?"),
 465                 (const wxChar *)title);
 466         int res = wxMessageBox(prompt, msgTitle,
 467                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 468                 GetDocumentWindow());
 469         if (res == wxNO)
 470         {
 471             Modify(false);
 472             return true;
 473         }
 474         else if (res == wxYES)
 475             return Save();
 476         else if (res == wxCANCEL)
 477             return false;
 478     }
 479     return true;
 480 }
 481
 482 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 483 {
 484     return true;
 485 }
 486
 487 bool wxDocument::AddView(wxView *view)
 488 {
 489     if (!m_documentViews.Member(view))
 490     {
 491         m_documentViews.Append(view);
 492         OnChangedViewList();
 493     }
 494     return true;
 495 }
 496
 497 bool wxDocument::RemoveView(wxView *view)
 498 {
 499     (void)m_documentViews.DeleteObject(view);
 500     OnChangedViewList();
 501     return true;
 502 }
 503
 504 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 505 {
 506     if (GetDocumentTemplate()->CreateView(this, flags))
 507         return true;
 508     else
 509         return false;
 510 }
 511
 512 // Called after a view is added or removed.
 513 // The default implementation deletes the document if
 514 // there are no more views.
 515 void wxDocument::OnChangedViewList()
 516 {
 517     if (m_documentViews.GetCount() == 0)
 518     {
 519         if (OnSaveModified())
 520         {
 521             delete this;
 522         }
 523     }
 524 }
 525
 526 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 527 {
 528     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 529     while (node)
 530     {
 531         wxView *view = (wxView *)node->GetData();
 532         if (view != sender)
 533             view->OnUpdate(sender, hint);
 534         node = node->GetNext();
 535     }
 536 }
 537
 538 void wxDocument::NotifyClosing()
 539 {
 540     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 541     while (node)
 542     {
 543         wxView *view = (wxView *)node->GetData();
 544         view->OnClosingDocument();
 545         node = node->GetNext();
 546     }
 547 }
 548
 549 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 550 {
 551     m_documentFile = filename;
 552     if ( notifyViews )
 553     {
 554         // Notify the views that the filename has changed
 555         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 556         while (node)
 557         {
 558             wxView *view = (wxView *)node->GetData();
 559             view->OnChangeFilename();
 560             node = node->GetNext();
 561         }
 562     }
 563 }
 564
 565 bool wxDocument::DoSaveDocument(const wxString& file)
 566 {
 567     wxString msgTitle;
 568     if (!wxTheApp->GetAppName().empty())
 569         msgTitle = wxTheApp->GetAppName();
 570     else
 571         msgTitle = wxString(_("File error"));
 572
 573 #if wxUSE_STD_IOSTREAM
 574     wxSTD ofstream store(file.mb_str());
 575     if (store.fail() || store.bad())
 576 #else
 577     wxFileOutputStream store(file);
 578     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 579 #endif
 580     {
 581         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 582                            GetDocumentWindow());
 583         // Saving error
 584         return false;
 585     }
 586     if (!SaveObject(store))
 587     {
 588         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 589                            GetDocumentWindow());
 590         // Saving error
 591         return false;
 592     }
 593
 594     return true;
 595 }
 596
 597 bool wxDocument::DoOpenDocument(const wxString& file)
 598 {
 599 #if wxUSE_STD_IOSTREAM
 600     wxSTD ifstream store(file.mb_str());
 601     if (!store.fail() && !store.bad())
 602 #else
 603     wxFileInputStream store(file);
 604     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 605 #endif
 606     {
 607 #if wxUSE_STD_IOSTREAM
 608         LoadObject(store);
 609         if ( !!store || store.eof() )
 610 #else
 611         int res = LoadObject(store).GetLastError();
 612         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 613 #endif
 614             return true;
 615     }
 616
 617     wxLogError(_("Sorry, could not open this file."));
 618     return false;
 619 }
 620
 621
 622 // ----------------------------------------------------------------------------
 623 // Document view
 624 // ----------------------------------------------------------------------------
 625
 626 wxView::wxView()
 627 {
 628     m_viewDocument = (wxDocument*) NULL;
 629
 630     m_viewFrame = (wxFrame *) NULL;
 631 }
 632
 633 wxView::~wxView()
 634 {
 635     GetDocumentManager()->ActivateView(this, false);
 636     m_viewDocument->RemoveView(this);
 637 }
 638
 639 // Extend event processing to search the document's event table
 640 bool wxView::ProcessEvent(wxEvent& event)
 641 {
 642     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 643         return wxEvtHandler::ProcessEvent(event);
 644
 645     return true;
 646 }
 647
 648 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 649 {
 650 }
 651
 652 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 653 {
 654     OnDraw(dc);
 655 }
 656
 657 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 658 {
 659 }
 660
 661 void wxView::OnChangeFilename()
 662 {
 663     if (GetFrame() && GetDocument())
 664     {
 665         wxString title;
 666
 667         GetDocument()->GetPrintableName(title);
 668
 669         GetFrame()->SetTitle(title);
 670     }
 671 }
 672
 673 void wxView::SetDocument(wxDocument *doc)
 674 {
 675     m_viewDocument = doc;
 676     if (doc)
 677         doc->AddView(this);
 678 }
 679
 680 bool wxView::Close(bool deleteWindow)
 681 {
 682     if (OnClose(deleteWindow))
 683         return true;
 684     else
 685         return false;
 686 }
 687
 688 void wxView::Activate(bool activate)
 689 {
 690     if (GetDocument() && GetDocumentManager())
 691     {
 692         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 693         GetDocumentManager()->ActivateView(this, activate);
 694     }
 695 }
 696
 697 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 698 {
 699     return GetDocument() ? GetDocument()->Close() : true;
 700 }
 701
 702 #if wxUSE_PRINTING_ARCHITECTURE
 703 wxPrintout *wxView::OnCreatePrintout()
 704 {
 705     return new wxDocPrintout(this);
 706 }
 707 #endif // wxUSE_PRINTING_ARCHITECTURE
 708
 709 // ----------------------------------------------------------------------------
 710 // wxDocTemplate
 711 // ----------------------------------------------------------------------------
 712
 713 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 714                              const wxString& descr,
 715                              const wxString& filter,
 716                              const wxString& dir,
 717                              const wxString& ext,
 718                              const wxString& docTypeName,
 719                              const wxString& viewTypeName,
 720                              wxClassInfo *docClassInfo,
 721                              wxClassInfo *viewClassInfo,
 722                              long flags)
 723 {
 724     m_documentManager = manager;
 725     m_description = descr;
 726     m_directory = dir;
 727     m_defaultExt = ext;
 728     m_fileFilter = filter;
 729     m_flags = flags;
 730     m_docTypeName = docTypeName;
 731     m_viewTypeName = viewTypeName;
 732     m_documentManager->AssociateTemplate(this);
 733
 734     m_docClassInfo = docClassInfo;
 735     m_viewClassInfo = viewClassInfo;
 736 }
 737
 738 wxDocTemplate::~wxDocTemplate()
 739 {
 740     m_documentManager->DisassociateTemplate(this);
 741 }
 742
 743 // Tries to dynamically construct an object of the right class.
 744 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 745 {
 746     wxDocument *doc = DoCreateDocument();
 747     if ( doc == NULL )
 748         return (wxDocument *) NULL;
 749
 750     if (InitDocument(doc, path, flags))
 751     {
 752         return doc;
 753     }
 754     else
 755     {
 756         return (wxDocument *) NULL;
 757     }
 758 }
 759
 760 bool wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 761 {
 762     doc->SetFilename(path);
 763     doc->SetDocumentTemplate(this);
 764     GetDocumentManager()->AddDocument(doc);
 765     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 766
 767     if (doc->OnCreate(path, flags))
 768         return true;
 769     else
 770     {
 771         if (GetDocumentManager()->GetDocuments().Member(doc))
 772             doc->DeleteAllViews();
 773         return false;
 774     }
 775 }
 776
 777 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 778 {
 779     wxView *view = DoCreateView();
 780     if ( view == NULL )
 781         return (wxView *) NULL;
 782
 783     view->SetDocument(doc);
 784     if (view->OnCreate(doc, flags))
 785     {
 786         return view;
 787     }
 788     else
 789     {
 790         delete view;
 791         return (wxView *) NULL;
 792     }
 793 }
 794
 795 // The default (very primitive) format detection: check is the extension is
 796 // that of the template
 797 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 798 {
 799     return GetDefaultExtension().IsSameAs(FindExtension(path));
 800 }
 801
 802 wxDocument *wxDocTemplate::DoCreateDocument()
 803 {
 804     if (!m_docClassInfo)
 805         return (wxDocument *) NULL;
 806
 807     return (wxDocument *)m_docClassInfo->CreateObject();
 808 }
 809
 810 wxView *wxDocTemplate::DoCreateView()
 811 {
 812     if (!m_viewClassInfo)
 813         return (wxView *) NULL;
 814
 815     return (wxView *)m_viewClassInfo->CreateObject();
 816 }
 817
 818 // ----------------------------------------------------------------------------
 819 // wxDocManager
 820 // ----------------------------------------------------------------------------
 821
 822 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 823     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 824     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 825     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 826     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 827     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 828     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 829     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 830     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 831     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 832
 833     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 834     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 835     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 836     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 837     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 838     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 839     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 840     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 841     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 842
 843 #if wxUSE_PRINTING_ARCHITECTURE
 844     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 845     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 846
 847     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 848     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 849 #endif
 850 END_EVENT_TABLE()
 851
 852 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 853
 854 wxDocManager::wxDocManager(long flags, bool initialize)
 855 {
 856     m_defaultDocumentNameCounter = 1;
 857     m_flags = flags;
 858     m_currentView = (wxView *) NULL;
 859     m_maxDocsOpen = 10000;
 860     m_fileHistory = (wxFileHistory *) NULL;
 861     if (initialize)
 862         Initialize();
 863     sm_docManager = this;
 864 }
 865
 866 wxDocManager::~wxDocManager()
 867 {
 868     Clear();
 869     if (m_fileHistory)
 870         delete m_fileHistory;
 871     sm_docManager = (wxDocManager*) NULL;
 872 }
 873
 874 // closes the specified document
 875 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 876 {
 877     if (doc->Close() || force)
 878     {
 879         // Implicitly deletes the document when
 880         // the last view is deleted
 881         doc->DeleteAllViews();
 882
 883         // Check we're really deleted
 884         if (m_docs.Member(doc))
 885             delete doc;
 886
 887         return true;
 888     }
 889     return false;
 890 }
 891
 892 bool wxDocManager::CloseDocuments(bool force)
 893 {
 894     wxList::compatibility_iterator node = m_docs.GetFirst();
 895     while (node)
 896     {
 897         wxDocument *doc = (wxDocument *)node->GetData();
 898         wxList::compatibility_iterator next = node->GetNext();
 899
 900         if (!CloseDocument(doc, force))
 901             return false;
 902
 903         // This assumes that documents are not connected in
 904         // any way, i.e. deleting one document does NOT
 905         // delete another.
 906         node = next;
 907     }
 908     return true;
 909 }
 910
 911 bool wxDocManager::Clear(bool force)
 912 {
 913     if (!CloseDocuments(force))
 914         return false;
 915
 916     m_currentView = NULL;
 917
 918     wxList::compatibility_iterator node = m_templates.GetFirst();
 919     while (node)
 920     {
 921         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 922         wxList::compatibility_iterator next = node->GetNext();
 923         delete templ;
 924         node = next;
 925     }
 926     return true;
 927 }
 928
 929 bool wxDocManager::Initialize()
 930 {
 931     m_fileHistory = OnCreateFileHistory();
 932     return true;
 933 }
 934
 935 wxFileHistory *wxDocManager::OnCreateFileHistory()
 936 {
 937     return new wxFileHistory;
 938 }
 939
 940 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 941 {
 942     wxDocument *doc = GetCurrentDocument();
 943     if (!doc)
 944         return;
 945     if (doc->Close())
 946     {
 947         doc->DeleteAllViews();
 948         if (m_docs.Member(doc))
 949             delete doc;
 950     }
 951 }
 952
 953 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 954 {
 955     CloseDocuments(false);
 956 }
 957
 958 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 959 {
 960     CreateDocument( wxEmptyString, wxDOC_NEW );
 961 }
 962
 963 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 964 {
 965     if ( !CreateDocument( wxEmptyString, 0) )
 966     {
 967         OnOpenFileFailure();
 968     }
 969 }
 970
 971 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 972 {
 973     wxDocument *doc = GetCurrentDocument();
 974     if (!doc)
 975         return;
 976     doc->Revert();
 977 }
 978
 979 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 980 {
 981     wxDocument *doc = GetCurrentDocument();
 982     if (!doc)
 983         return;
 984     doc->Save();
 985 }
 986
 987 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
 988 {
 989     wxDocument *doc = GetCurrentDocument();
 990     if (!doc)
 991         return;
 992     doc->SaveAs();
 993 }
 994
 995 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
 996 {
 997 #if wxUSE_PRINTING_ARCHITECTURE
 998     wxView *view = GetCurrentView();
 999     if (!view)
1000         return;
1001
1002     wxPrintout *printout = view->OnCreatePrintout();
1003     if (printout)
1004     {
1005         wxPrinter printer;
1006         printer.Print(view->GetFrame(), printout, true);
1007
1008         delete printout;
1009     }
1010 #endif // wxUSE_PRINTING_ARCHITECTURE
1011 }
1012
1013 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1014 {
1015 #if wxUSE_PRINTING_ARCHITECTURE
1016     wxView *view = GetCurrentView();
1017     if (!view)
1018         return;
1019
1020     wxPrintout *printout = view->OnCreatePrintout();
1021     if (printout)
1022     {
1023         // Pass two printout objects: for preview, and possible printing.
1024         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1025         if ( !preview->Ok() )
1026         {
1027             delete preview;
1028             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1029             return;
1030         }
1031
1032         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1033                 wxPoint(100, 100), wxSize(600, 650));
1034         frame->Centre(wxBOTH);
1035         frame->Initialize();
1036         frame->Show(true);
1037     }
1038 #endif // wxUSE_PRINTING_ARCHITECTURE
1039 }
1040
1041 void wxDocManager::OnUndo(wxCommandEvent& event)
1042 {
1043     wxDocument *doc = GetCurrentDocument();
1044     if (!doc)
1045         return;
1046     if (doc->GetCommandProcessor())
1047         doc->GetCommandProcessor()->Undo();
1048     else
1049         event.Skip();
1050 }
1051
1052 void wxDocManager::OnRedo(wxCommandEvent& event)
1053 {
1054     wxDocument *doc = GetCurrentDocument();
1055     if (!doc)
1056         return;
1057     if (doc->GetCommandProcessor())
1058         doc->GetCommandProcessor()->Redo();
1059     else
1060         event.Skip();
1061 }
1062
1063 // Handlers for UI update commands
1064
1065 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1066 {
1067     event.Enable( true );
1068 }
1069
1070 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1071 {
1072     wxDocument *doc = GetCurrentDocument();
1073     event.Enable( (doc != (wxDocument*) NULL) );
1074 }
1075
1076 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1077 {
1078     wxDocument *doc = GetCurrentDocument();
1079     event.Enable( (doc != (wxDocument*) NULL) );
1080 }
1081
1082 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1083 {
1084     event.Enable( true );
1085 }
1086
1087 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1088 {
1089     wxDocument *doc = GetCurrentDocument();
1090     event.Enable( doc && doc->IsModified() );
1091 }
1092
1093 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1094 {
1095     wxDocument *doc = GetCurrentDocument();
1096     event.Enable( (doc != (wxDocument*) NULL) );
1097 }
1098
1099 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1100 {
1101     wxDocument *doc = GetCurrentDocument();
1102     if (!doc)
1103         event.Enable(false);
1104     else if (!doc->GetCommandProcessor())
1105         event.Skip();
1106     else
1107     {
1108         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1109         doc->GetCommandProcessor()->SetMenuStrings();
1110     }
1111 }
1112
1113 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1114 {
1115     wxDocument *doc = GetCurrentDocument();
1116     if (!doc)
1117         event.Enable(false);
1118     else if (!doc->GetCommandProcessor())
1119         event.Skip();
1120     else
1121     {
1122         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1123         doc->GetCommandProcessor()->SetMenuStrings();
1124     }
1125 }
1126
1127 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1128 {
1129     wxDocument *doc = GetCurrentDocument();
1130     event.Enable( (doc != (wxDocument*) NULL) );
1131 }
1132
1133 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1134 {
1135     wxDocument *doc = GetCurrentDocument();
1136     event.Enable( (doc != (wxDocument*) NULL) );
1137 }
1138
1139 wxView *wxDocManager::GetCurrentView() const
1140 {
1141     if (m_currentView)
1142         return m_currentView;
1143     if (m_docs.GetCount() == 1)
1144     {
1145         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1146         return doc->GetFirstView();
1147     }
1148     return (wxView *) NULL;
1149 }
1150
1151 // Extend event processing to search the view's event table
1152 bool wxDocManager::ProcessEvent(wxEvent& event)
1153 {
1154     wxView* view = GetCurrentView();
1155     if (view)
1156     {
1157         if (view->ProcessEvent(event))
1158             return true;
1159     }
1160     return wxEvtHandler::ProcessEvent(event);
1161 }
1162
1163 wxDocument *wxDocManager::CreateDocument(const wxString& path, 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             templates[n] = temp;
1174             n ++;
1175         }
1176     }
1177     if (n == 0)
1178     {
1179         delete[] templates;
1180         return (wxDocument *) NULL;
1181     }
1182
1183     wxDocument* docToClose = NULL;
1184
1185     // If we've reached the max number of docs, close the
1186     // first one.
1187     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1188     {
1189         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1190         docToClose = doc;
1191     }
1192
1193     // New document: user chooses a template, unless there's only one.
1194     if (flags & wxDOC_NEW)
1195     {
1196         if (n == 1)
1197         {
1198             if (docToClose)
1199             {
1200                 if (!CloseDocument(docToClose, false))
1201                 {
1202                     delete[] templates;
1203                     return NULL;
1204                 }
1205             }
1206
1207             wxDocTemplate *temp = templates[0];
1208             delete[] templates;
1209             wxDocument *newDoc = temp->CreateDocument(path, flags);
1210
1211             if (newDoc)
1212             {
1213                 newDoc->SetDocumentName(temp->GetDocumentName());
1214                 newDoc->SetDocumentTemplate(temp);
1215                 if (!newDoc->OnNewDocument() )
1216                 {
1217                      // Document is implicitly deleted by DeleteAllViews
1218                      newDoc->DeleteAllViews();
1219                      return NULL;
1220                 }
1221             }
1222             return newDoc;
1223         }
1224
1225         wxDocTemplate *temp = SelectDocumentType(templates, n);
1226         delete[] templates;
1227         if (temp)
1228         {
1229             if (docToClose)
1230             {
1231                 if (!CloseDocument(docToClose, false))
1232                 {
1233                     return NULL;
1234                 }
1235             }
1236
1237             wxDocument *newDoc = temp->CreateDocument(path, flags);
1238
1239             if (newDoc)
1240             {
1241                 newDoc->SetDocumentName(temp->GetDocumentName());
1242                 newDoc->SetDocumentTemplate(temp);
1243                 if (!newDoc->OnNewDocument() )
1244                 {
1245                      // Document is implicitly deleted by DeleteAllViews
1246                      newDoc->DeleteAllViews();
1247                      return NULL;
1248                 }
1249             }
1250             return newDoc;
1251         }
1252         else
1253             return (wxDocument *) NULL;
1254     }
1255
1256     // Existing document
1257     wxDocTemplate *temp;
1258
1259     wxString path2 = path;
1260
1261     if (flags & wxDOC_SILENT)
1262     {
1263         temp = FindTemplateForPath(path2);
1264         if (!temp)
1265         {
1266             // Since we do not add files with non-default extensions to the FileHistory this
1267             // can only happen if the application changes the allowed templates in runtime.
1268             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1269                                 _("Open File"),
1270                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1271         }
1272     }
1273     else
1274         temp = SelectDocumentPath(templates, n, path2, flags);
1275
1276     delete[] templates;
1277
1278     if (temp)
1279     {
1280         if (docToClose)
1281         {
1282             if (!CloseDocument(docToClose, false))
1283             {
1284                 return NULL;
1285             }
1286         }
1287
1288         //see if this file is already open
1289         for (size_t i = 0; i < GetDocuments().GetCount(); ++i)
1290         {
1291             wxDocument* currentDoc = (wxDocument*)(GetDocuments().Item(i)->GetData());
1292 #ifdef __WXMSW__
1293             //file paths are case-insensitive on Windows
1294             if (path2.CmpNoCase(currentDoc->GetFilename()) == 0)
1295 #else
1296             if (path2.Cmp(currentDoc->GetFilename()) == 0)
1297 #endif
1298             {
1299                 //file already open. Just activate it and return
1300                 if (currentDoc->GetFirstView())
1301                 {
1302                     ActivateView(currentDoc->GetFirstView(), true);
1303                     if (currentDoc->GetDocumentWindow())
1304                         currentDoc->GetDocumentWindow()->SetFocus();
1305                     return currentDoc;
1306                 }
1307             }
1308         }
1309
1310         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1311         if (newDoc)
1312         {
1313             newDoc->SetDocumentName(temp->GetDocumentName());
1314             newDoc->SetDocumentTemplate(temp);
1315             if (!newDoc->OnOpenDocument(path2))
1316             {
1317                 newDoc->DeleteAllViews();
1318                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1319                 return (wxDocument *) NULL;
1320             }
1321             // A file that doesn't use the default extension of its document
1322             // template cannot be opened via the FileHistory, so we do not
1323             // add it.
1324             if (temp->FileMatchesTemplate(path2))
1325                 AddFileToHistory(path2);
1326         }
1327         return newDoc;
1328     }
1329
1330     return (wxDocument *) NULL;
1331 }
1332
1333 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1334 {
1335     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1336     int               n =0;
1337
1338     for (size_t i = 0; i < m_templates.GetCount(); i++)
1339     {
1340         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1341         if (temp->IsVisible())
1342         {
1343             if (temp->GetDocumentName() == doc->GetDocumentName())
1344             {
1345                 templates[n] = temp;
1346                 n ++;
1347             }
1348         }
1349     }
1350     if (n == 0)
1351     {
1352         delete[] templates;
1353         return (wxView *) NULL;
1354     }
1355     if (n == 1)
1356     {
1357         wxDocTemplate *temp = templates[0];
1358         delete[] templates;
1359         wxView *view = temp->CreateView(doc, flags);
1360         if (view)
1361             view->SetViewName(temp->GetViewName());
1362         return view;
1363     }
1364
1365     wxDocTemplate *temp = SelectViewType(templates, n);
1366     delete[] templates;
1367     if (temp)
1368     {
1369         wxView *view = temp->CreateView(doc, flags);
1370         if (view)
1371             view->SetViewName(temp->GetViewName());
1372         return view;
1373     }
1374     else
1375         return (wxView *) NULL;
1376 }
1377
1378 // Not yet implemented
1379 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1380 {
1381 }
1382
1383 // Not yet implemented
1384 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1385 {
1386     return false;
1387 }
1388
1389 wxDocument *wxDocManager::GetCurrentDocument() const
1390 {
1391     wxView *view = GetCurrentView();
1392     if (view)
1393         return view->GetDocument();
1394     else
1395         return (wxDocument *) NULL;
1396 }
1397
1398 // Make a default document name
1399 bool wxDocManager::MakeDefaultName(wxString& name)
1400 {
1401     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1402     m_defaultDocumentNameCounter++;
1403
1404     return true;
1405 }
1406
1407 // Make a frame title (override this to do something different)
1408 // If docName is empty, a document is not currently active.
1409 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1410 {
1411     wxString appName = wxTheApp->GetAppName();
1412     wxString title;
1413     if (!doc)
1414         title = appName;
1415     else
1416     {
1417         wxString docName;
1418         doc->GetPrintableName(docName);
1419         title = docName + wxString(_(" - ")) + appName;
1420     }
1421     return title;
1422 }
1423
1424
1425 // Not yet implemented
1426 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1427 {
1428     return (wxDocTemplate *) NULL;
1429 }
1430
1431 // File history management
1432 void wxDocManager::AddFileToHistory(const wxString& file)
1433 {
1434     if (m_fileHistory)
1435         m_fileHistory->AddFileToHistory(file);
1436 }
1437
1438 void wxDocManager::RemoveFileFromHistory(size_t i)
1439 {
1440     if (m_fileHistory)
1441         m_fileHistory->RemoveFileFromHistory(i);
1442 }
1443
1444 wxString wxDocManager::GetHistoryFile(size_t i) const
1445 {
1446     wxString histFile;
1447
1448     if (m_fileHistory)
1449         histFile = m_fileHistory->GetHistoryFile(i);
1450
1451     return histFile;
1452 }
1453
1454 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1455 {
1456     if (m_fileHistory)
1457         m_fileHistory->UseMenu(menu);
1458 }
1459
1460 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1461 {
1462     if (m_fileHistory)
1463         m_fileHistory->RemoveMenu(menu);
1464 }
1465
1466 #if wxUSE_CONFIG
1467 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1468 {
1469     if (m_fileHistory)
1470         m_fileHistory->Load(config);
1471 }
1472
1473 void wxDocManager::FileHistorySave(wxConfigBase& config)
1474 {
1475     if (m_fileHistory)
1476         m_fileHistory->Save(config);
1477 }
1478 #endif
1479
1480 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1481 {
1482     if (m_fileHistory)
1483         m_fileHistory->AddFilesToMenu(menu);
1484 }
1485
1486 void wxDocManager::FileHistoryAddFilesToMenu()
1487 {
1488     if (m_fileHistory)
1489         m_fileHistory->AddFilesToMenu();
1490 }
1491
1492 size_t wxDocManager::GetHistoryFilesCount() const
1493 {
1494     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1495 }
1496
1497
1498 // Find out the document template via matching in the document file format
1499 // against that of the template
1500 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1501 {
1502     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1503
1504     // Find the template which this extension corresponds to
1505     for (size_t i = 0; i < m_templates.GetCount(); i++)
1506     {
1507         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1508         if ( temp->FileMatchesTemplate(path) )
1509         {
1510             theTemplate = temp;
1511             break;
1512         }
1513     }
1514     return theTemplate;
1515 }
1516
1517 // Try to get a more suitable parent frame than the top window,
1518 // for selection dialogs. Otherwise you may get an unexpected
1519 // window being activated when a dialog is shown.
1520 static wxWindow* wxFindSuitableParent()
1521 {
1522     wxWindow* parent = wxTheApp->GetTopWindow();
1523
1524     wxWindow* focusWindow = wxWindow::FindFocus();
1525     if (focusWindow)
1526     {
1527         while (focusWindow &&
1528                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1529                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1530
1531             focusWindow = focusWindow->GetParent();
1532
1533         if (focusWindow)
1534             parent = focusWindow;
1535     }
1536     return parent;
1537 }
1538
1539 // Prompts user to open a file, using file specs in templates.
1540 // Must extend the file selector dialog or implement own; OR
1541 // match the extension to the template extension.
1542
1543 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1544 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1545                                                 int noTemplates,
1546 #else
1547                                                 int WXUNUSED(noTemplates),
1548 #endif
1549                                                 wxString& path,
1550                                                 long WXUNUSED(flags),
1551                                                 bool WXUNUSED(save))
1552 {
1553     // We can only have multiple filters in Windows and GTK
1554 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1555     wxString descrBuf;
1556
1557     int i;
1558     for (i = 0; i < noTemplates; i++)
1559     {
1560         if (templates[i]->IsVisible())
1561         {
1562             // add a '|' to separate this filter from the previous one
1563             if ( !descrBuf.empty() )
1564                 descrBuf << wxT('|');
1565
1566             descrBuf << templates[i]->GetDescription()
1567                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1568                 << templates[i]->GetFileFilter();
1569         }
1570     }
1571 #else
1572     wxString descrBuf = wxT("*.*");
1573 #endif
1574
1575     int FilterIndex = -1;
1576
1577     wxWindow* parent = wxFindSuitableParent();
1578
1579     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1580                                         m_lastDirectory,
1581                                         wxEmptyString,
1582                                         &FilterIndex,
1583                                         descrBuf,
1584                                         0,
1585                                         parent);
1586
1587     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1588     if (!pathTmp.empty())
1589     {
1590         if (!wxFileExists(pathTmp))
1591         {
1592             wxString msgTitle;
1593             if (!wxTheApp->GetAppName().empty())
1594                 msgTitle = wxTheApp->GetAppName();
1595             else
1596                 msgTitle = wxString(_("File error"));
1597
1598             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1599                 parent);
1600
1601             path = wxEmptyString;
1602             return (wxDocTemplate *) NULL;
1603         }
1604         m_lastDirectory = wxPathOnly(pathTmp);
1605
1606         path = pathTmp;
1607
1608         // first choose the template using the extension, if this fails (i.e.
1609         // wxFileSelectorEx() didn't fill it), then use the path
1610         if ( FilterIndex != -1 )
1611             theTemplate = templates[FilterIndex];
1612         if ( !theTemplate )
1613             theTemplate = FindTemplateForPath(path);
1614         if ( !theTemplate )
1615         {
1616             // Since we do not add files with non-default extensions to the FileHistory this
1617             // can only happen if the application changes the allowed templates in runtime.
1618             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1619                                 _("Open File"),
1620                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1621         }
1622     }
1623     else
1624     {
1625         path = wxEmptyString;
1626     }
1627
1628     return theTemplate;
1629 }
1630
1631 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1632                                                 int noTemplates, bool sort)
1633 {
1634     wxArrayString strings;
1635     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1636     int i;
1637     int n = 0;
1638
1639     for (i = 0; i < noTemplates; i++)
1640     {
1641         if (templates[i]->IsVisible())
1642         {
1643             int j;
1644             bool want = true;
1645             for (j = 0; j < n; j++)
1646             {
1647                 //filter out NOT unique documents + view combinations
1648                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1649                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1650                    )
1651                     want = false;
1652             }
1653
1654             if ( want )
1655             {
1656                 strings.Add(templates[i]->m_description);
1657
1658                 data[n] = templates[i];
1659                 n ++;
1660             }
1661         }
1662     }  // for
1663
1664     if (sort)
1665     {
1666         strings.Sort(); // ascending sort
1667         // Yes, this will be slow, but template lists
1668         // are typically short.
1669         int j;
1670         n = strings.Count();
1671         for (i = 0; i < n; i++)
1672         {
1673             for (j = 0; j < noTemplates; j++)
1674             {
1675                 if (strings[i] == templates[j]->m_description)
1676                     data[i] = templates[j];
1677             }
1678         }
1679     }
1680
1681     wxDocTemplate *theTemplate;
1682
1683     switch ( n )
1684     {
1685         case 0:
1686             // no visible templates, hence nothing to choose from
1687             theTemplate = NULL;
1688             break;
1689
1690         case 1:
1691             // don't propose the user to choose if he heas no choice
1692             theTemplate = data[0];
1693             break;
1694
1695         default:
1696             // propose the user to choose one of several
1697             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1698                           (
1699                             _("Select a document template"),
1700                             _("Templates"),
1701                             strings,
1702                             (void **)data,
1703                             wxFindSuitableParent()
1704                           );
1705     }
1706
1707     delete[] data;
1708
1709     return theTemplate;
1710 }
1711
1712 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1713                                             int noTemplates, bool sort)
1714 {
1715     wxArrayString strings;
1716     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1717     int i;
1718     int n = 0;
1719
1720     for (i = 0; i < noTemplates; i++)
1721     {
1722         wxDocTemplate *templ = templates[i];
1723         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1724         {
1725             int j;
1726             bool want = true;
1727             for (j = 0; j < n; j++)
1728             {
1729                 //filter out NOT unique views
1730                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1731                     want = false;
1732             }
1733
1734             if ( want )
1735             {
1736                 strings.Add(templ->m_viewTypeName);
1737                 data[n] = templ;
1738                 n ++;
1739             }
1740         }
1741     }
1742
1743     if (sort)
1744     {
1745         strings.Sort(); // ascending sort
1746         // Yes, this will be slow, but template lists
1747         // are typically short.
1748         int j;
1749         n = strings.Count();
1750         for (i = 0; i < n; i++)
1751         {
1752             for (j = 0; j < noTemplates; j++)
1753             {
1754                 if (strings[i] == templates[j]->m_viewTypeName)
1755                     data[i] = templates[j];
1756             }
1757         }
1758     }
1759
1760     wxDocTemplate *theTemplate;
1761
1762     // the same logic as above
1763     switch ( n )
1764     {
1765         case 0:
1766             theTemplate = (wxDocTemplate *)NULL;
1767             break;
1768
1769         case 1:
1770             theTemplate = data[0];
1771             break;
1772
1773         default:
1774             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1775                           (
1776                             _("Select a document view"),
1777                             _("Views"),
1778                             strings,
1779                             (void **)data,
1780                             wxFindSuitableParent()
1781                           );
1782
1783     }
1784
1785     delete[] data;
1786     return theTemplate;
1787 }
1788
1789 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1790 {
1791     if (!m_templates.Member(temp))
1792         m_templates.Append(temp);
1793 }
1794
1795 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1796 {
1797     m_templates.DeleteObject(temp);
1798 }
1799
1800 // Add and remove a document from the manager's list
1801 void wxDocManager::AddDocument(wxDocument *doc)
1802 {
1803     if (!m_docs.Member(doc))
1804         m_docs.Append(doc);
1805 }
1806
1807 void wxDocManager::RemoveDocument(wxDocument *doc)
1808 {
1809     m_docs.DeleteObject(doc);
1810 }
1811
1812 // Views or windows should inform the document manager
1813 // when a view is going in or out of focus
1814 void wxDocManager::ActivateView(wxView *view, bool activate)
1815 {
1816     if ( activate )
1817     {
1818         m_currentView = view;
1819     }
1820     else // deactivate
1821     {
1822         if ( m_currentView == view )
1823         {
1824             // don't keep stale pointer
1825             m_currentView = (wxView *) NULL;
1826         }
1827     }
1828 }
1829
1830 // ----------------------------------------------------------------------------
1831 // Default document child frame
1832 // ----------------------------------------------------------------------------
1833
1834 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1835     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1836     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1837 END_EVENT_TABLE()
1838
1839 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1840                                  wxView *view,
1841                                  wxFrame *frame,
1842                                  wxWindowID id,
1843                                  const wxString& title,
1844                                  const wxPoint& pos,
1845                                  const wxSize& size,
1846                                  long style,
1847                                  const wxString& name)
1848                : wxFrame(frame, id, title, pos, size, style, name)
1849 {
1850     m_childDocument = doc;
1851     m_childView = view;
1852     if (view)
1853         view->SetFrame(this);
1854 }
1855
1856 // Extend event processing to search the view's event table
1857 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1858 {
1859     if (m_childView)
1860         m_childView->Activate(true);
1861
1862     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1863     {
1864         // Only hand up to the parent if it's a menu command
1865         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1866             return wxEvtHandler::ProcessEvent(event);
1867         else
1868             return true;
1869     }
1870     else
1871         return true;
1872 }
1873
1874 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1875 {
1876     wxFrame::OnActivate(event);
1877
1878     if (m_childView)
1879         m_childView->Activate(event.GetActive());
1880 }
1881
1882 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1883 {
1884     if (m_childView)
1885     {
1886         bool ans = event.CanVeto()
1887                     ? m_childView->Close(false) // false means don't delete associated window
1888                     : true; // Must delete.
1889
1890         if (ans)
1891         {
1892             m_childView->Activate(false);
1893             delete m_childView;
1894             m_childView = (wxView *) NULL;
1895             m_childDocument = (wxDocument *) NULL;
1896
1897             this->Destroy();
1898         }
1899         else
1900             event.Veto();
1901     }
1902     else
1903         event.Veto();
1904 }
1905
1906 // ----------------------------------------------------------------------------
1907 // Default parent frame
1908 // ----------------------------------------------------------------------------
1909
1910 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1911     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1912     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1913     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1914 END_EVENT_TABLE()
1915
1916 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1917                                    wxFrame *frame,
1918                                    wxWindowID id,
1919                                    const wxString& title,
1920                                    const wxPoint& pos,
1921                                    const wxSize& size,
1922                                    long style,
1923                                    const wxString& name)
1924                 : wxFrame(frame, id, title, pos, size, style, name)
1925 {
1926     m_docManager = manager;
1927 }
1928
1929 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1930 {
1931     Close();
1932 }
1933
1934 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1935 {
1936     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1937     wxString filename(m_docManager->GetHistoryFile(n));
1938     if ( !filename.empty() )
1939     {
1940         // verify that the file exists before doing anything else
1941         if ( wxFile::Exists(filename) )
1942         {
1943             // try to open it
1944             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
1945             {
1946                 // remove the file from the MRU list. The user should already be notified.
1947                 m_docManager->RemoveFileFromHistory(n);
1948
1949                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
1950                        filename.c_str());
1951             }
1952         }
1953         else
1954         {
1955             // remove the bogus filename from the MRU list and notify the user
1956             // about it
1957             m_docManager->RemoveFileFromHistory(n);
1958
1959             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1960                        filename.c_str());
1961         }
1962     }
1963 }
1964
1965 // Extend event processing to search the view's event table
1966 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1967 {
1968     // Try the document manager, then do default processing
1969     if (!m_docManager || !m_docManager->ProcessEvent(event))
1970         return wxEvtHandler::ProcessEvent(event);
1971     else
1972         return true;
1973 }
1974
1975 // Define the behaviour for the frame closing
1976 // - must delete all frames except for the main one.
1977 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1978 {
1979     if (m_docManager->Clear(!event.CanVeto()))
1980     {
1981         this->Destroy();
1982     }
1983     else
1984         event.Veto();
1985 }
1986
1987 #if wxUSE_PRINTING_ARCHITECTURE
1988
1989 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1990              : wxPrintout(title)
1991 {
1992     m_printoutView = view;
1993 }
1994
1995 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1996 {
1997     wxDC *dc = GetDC();
1998
1999     // Get the logical pixels per inch of screen and printer
2000     int ppiScreenX, ppiScreenY;
2001     GetPPIScreen(&ppiScreenX, &ppiScreenY);
2002     wxUnusedVar(ppiScreenY);
2003     int ppiPrinterX, ppiPrinterY;
2004     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
2005     wxUnusedVar(ppiPrinterY);
2006
2007     // This scales the DC so that the printout roughly represents the
2008     // the screen scaling. The text point size _should_ be the right size
2009     // but in fact is too small for some reason. This is a detail that will
2010     // need to be addressed at some point but can be fudged for the
2011     // moment.
2012     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2013
2014     // Now we have to check in case our real page size is reduced
2015     // (e.g. because we're drawing to a print preview memory DC)
2016     int pageWidth, pageHeight;
2017     int w, h;
2018     dc->GetSize(&w, &h);
2019     GetPageSizePixels(&pageWidth, &pageHeight);
2020     wxUnusedVar(pageHeight);
2021
2022     // If printer pageWidth == current DC width, then this doesn't
2023     // change. But w might be the preview bitmap width, so scale down.
2024     float overallScale = scale * (float)(w/(float)pageWidth);
2025     dc->SetUserScale(overallScale, overallScale);
2026
2027     if (m_printoutView)
2028     {
2029         m_printoutView->OnDraw(dc);
2030     }
2031     return true;
2032 }
2033
2034 bool wxDocPrintout::HasPage(int pageNum)
2035 {
2036     return (pageNum == 1);
2037 }
2038
2039 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2040 {
2041     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2042         return false;
2043
2044     return true;
2045 }
2046
2047 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
2048 {
2049     *minPage = 1;
2050     *maxPage = 1;
2051     *selPageFrom = 1;
2052     *selPageTo = 1;
2053 }
2054
2055 #endif // wxUSE_PRINTING_ARCHITECTURE
2056
2057 // ----------------------------------------------------------------------------
2058 // File history processor
2059 // ----------------------------------------------------------------------------
2060
2061 static inline wxChar* MYcopystring(const wxString& s)
2062 {
2063     wxChar* copy = new wxChar[s.length() + 1];
2064     return wxStrcpy(copy, s.c_str());
2065 }
2066
2067 static inline wxChar* MYcopystring(const wxChar* s)
2068 {
2069     wxChar* copy = new wxChar[wxStrlen(s) + 1];
2070     return wxStrcpy(copy, s);
2071 }
2072
2073 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2074 {
2075     m_fileMaxFiles = maxFiles;
2076     m_idBase = idBase;
2077     m_fileHistoryN = 0;
2078     m_fileHistory = new wxChar *[m_fileMaxFiles];
2079 }
2080
2081 wxFileHistory::~wxFileHistory()
2082 {
2083     size_t i;
2084     for (i = 0; i < m_fileHistoryN; i++)
2085         delete[] m_fileHistory[i];
2086     delete[] m_fileHistory;
2087 }
2088
2089 // File history management
2090 void wxFileHistory::AddFileToHistory(const wxString& file)
2091 {
2092     size_t i;
2093
2094     // Check we don't already have this file
2095     for (i = 0; i < m_fileHistoryN; i++)
2096     {
2097 #if defined( __WXMSW__ ) // Add any other OSes with case insensitive file names
2098         wxString testString;
2099         if ( m_fileHistory[i] )
2100             testString = m_fileHistory[i];
2101         if ( m_fileHistory[i] && ( file.Lower() == testString.Lower() ) )
2102 #else
2103         if ( m_fileHistory[i] && ( file == m_fileHistory[i] ) )
2104 #endif
2105         {
2106             // we do have it, move it to the top of the history
2107             RemoveFileFromHistory (i);
2108             AddFileToHistory (file);
2109             return;
2110         }
2111     }
2112
2113     // if we already have a full history, delete the one at the end
2114     if ( m_fileMaxFiles == m_fileHistoryN )
2115     {
2116         RemoveFileFromHistory (m_fileHistoryN - 1);
2117         AddFileToHistory (file);
2118         return;
2119     }
2120
2121     // Add to the project file history:
2122     // Move existing files (if any) down so we can insert file at beginning.
2123     if (m_fileHistoryN < m_fileMaxFiles)
2124     {
2125         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2126         while (node)
2127         {
2128             wxMenu* menu = (wxMenu*) node->GetData();
2129             if ( m_fileHistoryN == 0 && menu->GetMenuItemCount() )
2130             {
2131                 menu->AppendSeparator();
2132             }
2133             menu->Append(m_idBase+m_fileHistoryN, _("[EMPTY]"));
2134             node = node->GetNext();
2135         }
2136         m_fileHistoryN ++;
2137     }
2138     // Shuffle filenames down
2139     for (i = (m_fileHistoryN-1); i > 0; i--)
2140     {
2141         m_fileHistory[i] = m_fileHistory[i-1];
2142     }
2143     m_fileHistory[0] = MYcopystring(file);
2144
2145     // this is the directory of the last opened file
2146     wxString pathCurrent;
2147     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2148     for (i = 0; i < m_fileHistoryN; i++)
2149     {
2150         if ( m_fileHistory[i] )
2151         {
2152             // if in same directory just show the filename; otherwise the full
2153             // path
2154             wxString pathInMenu, path, filename, ext;
2155             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2156             if ( path == pathCurrent )
2157             {
2158                 pathInMenu = filename;
2159                 if ( !ext.empty() )
2160                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2161             }
2162             else
2163             {
2164                 // absolute path; could also set relative path
2165                 pathInMenu = m_fileHistory[i];
2166             }
2167
2168             // we need to quote '&' characters which are used for mnemonics
2169             pathInMenu.Replace(_T("&"), _T("&&"));
2170             wxString buf;
2171             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2172             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2173             while (node)
2174             {
2175                 wxMenu* menu = (wxMenu*) node->GetData();
2176                 menu->SetLabel(m_idBase + i, buf);
2177                 node = node->GetNext();
2178             }
2179         }
2180     }
2181 }
2182
2183 void wxFileHistory::RemoveFileFromHistory(size_t i)
2184 {
2185     wxCHECK_RET( i < m_fileHistoryN,
2186                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2187
2188     // delete the element from the array (could use memmove() too...)
2189     delete [] m_fileHistory[i];
2190
2191     size_t j;
2192     for ( j = i; j < m_fileHistoryN - 1; j++ )
2193     {
2194         m_fileHistory[j] = m_fileHistory[j + 1];
2195     }
2196
2197     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2198     while ( node )
2199     {
2200          wxMenu* menu = (wxMenu*) node->GetData();
2201
2202          // shuffle filenames up
2203          wxString buf;
2204          for ( j = i; j < m_fileHistoryN - 1; j++ )
2205          {
2206              buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2207              menu->SetLabel(m_idBase + j, buf);
2208          }
2209
2210          node = node->GetNext();
2211
2212         // delete the last menu item which is unused now
2213         wxWindowID lastItemId = m_idBase + m_fileHistoryN - 1;
2214         if (menu->FindItem(lastItemId))
2215         {
2216             menu->Delete(lastItemId);
2217         }
2218
2219         // delete the last separator too if no more files are left
2220         if ( m_fileHistoryN == 1 )
2221         {
2222             wxMenuItemList::compatibility_iterator node = menu->GetMenuItems().GetLast();
2223             if ( node )
2224             {
2225                 wxMenuItem *menuItem = node->GetData();
2226                 if ( menuItem->IsSeparator() )
2227                 {
2228                     menu->Delete(menuItem);
2229                 }
2230                 //else: should we search backwards for the last separator?
2231             }
2232             //else: menu is empty somehow
2233         }
2234     }
2235
2236     m_fileHistoryN--;
2237 }
2238
2239 wxString wxFileHistory::GetHistoryFile(size_t i) const
2240 {
2241     wxString s;
2242     if ( i < m_fileHistoryN )
2243     {
2244         s = m_fileHistory[i];
2245     }
2246     else
2247     {
2248         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2249     }
2250
2251     return s;
2252 }
2253
2254 void wxFileHistory::UseMenu(wxMenu *menu)
2255 {
2256     if (!m_fileMenus.Member(menu))
2257         m_fileMenus.Append(menu);
2258 }
2259
2260 void wxFileHistory::RemoveMenu(wxMenu *menu)
2261 {
2262     m_fileMenus.DeleteObject(menu);
2263 }
2264
2265 #if wxUSE_CONFIG
2266 void wxFileHistory::Load(wxConfigBase& config)
2267 {
2268     m_fileHistoryN = 0;
2269     wxString buf;
2270     buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2271     wxString historyFile;
2272     while ((m_fileHistoryN < m_fileMaxFiles) && config.Read(buf, &historyFile) && (!historyFile.empty()))
2273     {
2274         m_fileHistory[m_fileHistoryN] = MYcopystring((const wxChar*) historyFile);
2275         m_fileHistoryN ++;
2276         buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2277         historyFile = wxEmptyString;
2278     }
2279     AddFilesToMenu();
2280 }
2281
2282 void wxFileHistory::Save(wxConfigBase& config)
2283 {
2284     size_t i;
2285     for (i = 0; i < m_fileMaxFiles; i++)
2286     {
2287         wxString buf;
2288         buf.Printf(wxT("file%d"), (int)i+1);
2289         if (i < m_fileHistoryN)
2290             config.Write(buf, wxString(m_fileHistory[i]));
2291         else
2292             config.Write(buf, wxEmptyString);
2293     }
2294 }
2295 #endif // wxUSE_CONFIG
2296
2297 void wxFileHistory::AddFilesToMenu()
2298 {
2299     if (m_fileHistoryN > 0)
2300     {
2301         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2302         while (node)
2303         {
2304             wxMenu* menu = (wxMenu*) node->GetData();
2305             if (menu->GetMenuItemCount())
2306             {
2307                 menu->AppendSeparator();
2308             }
2309
2310             size_t i;
2311             for (i = 0; i < m_fileHistoryN; i++)
2312             {
2313                 if (m_fileHistory[i])
2314                 {
2315                     wxString buf;
2316                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2317                     menu->Append(m_idBase+i, buf);
2318                 }
2319             }
2320             node = node->GetNext();
2321         }
2322     }
2323 }
2324
2325 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2326 {
2327     if (m_fileHistoryN > 0)
2328     {
2329         if (menu->GetMenuItemCount())
2330         {
2331             menu->AppendSeparator();
2332         }
2333
2334         size_t i;
2335         for (i = 0; i < m_fileHistoryN; i++)
2336         {
2337             if (m_fileHistory[i])
2338             {
2339                 wxString buf;
2340                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2341                 menu->Append(m_idBase+i, buf);
2342             }
2343         }
2344     }
2345 }
2346
2347 // ----------------------------------------------------------------------------
2348 // Permits compatibility with existing file formats and functions that
2349 // manipulate files directly
2350 // ----------------------------------------------------------------------------
2351
2352 #if wxUSE_STD_IOSTREAM
2353
2354 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2355 {
2356     wxFFile file(filename, _T("rb"));
2357     if ( !file.IsOpened() )
2358         return false;
2359
2360     char buf[4096];
2361
2362     size_t nRead;
2363     do
2364     {
2365         nRead = file.Read(buf, WXSIZEOF(buf));
2366         if ( file.Error() )
2367             return false;
2368
2369         stream.write(buf, nRead);
2370         if ( !stream )
2371             return false;
2372     }
2373     while ( !file.Eof() );
2374
2375     return true;
2376 }
2377
2378 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2379 {
2380     wxFFile file(filename, _T("wb"));
2381     if ( !file.IsOpened() )
2382         return false;
2383
2384     char buf[4096];
2385     do
2386     {
2387         stream.read(buf, WXSIZEOF(buf));
2388         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2389         {
2390             if ( !file.Write(buf, stream.gcount()) )
2391                 return false;
2392         }
2393     }
2394     while ( !stream.eof() );
2395
2396     return true;
2397 }
2398
2399 #else // !wxUSE_STD_IOSTREAM
2400
2401 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2402 {
2403     wxFFile file(filename, _T("rb"));
2404     if ( !file.IsOpened() )
2405         return false;
2406
2407     char buf[4096];
2408
2409     size_t nRead;
2410     do
2411     {
2412         nRead = file.Read(buf, WXSIZEOF(buf));
2413         if ( file.Error() )
2414             return false;
2415
2416         stream.Write(buf, nRead);
2417         if ( !stream )
2418             return false;
2419     }
2420     while ( !file.Eof() );
2421
2422     return true;
2423 }
2424
2425 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2426 {
2427     wxFFile file(filename, _T("wb"));
2428     if ( !file.IsOpened() )
2429         return false;
2430
2431     char buf[4096];
2432     do
2433     {
2434         stream.Read(buf, WXSIZEOF(buf));
2435
2436         const size_t nRead = stream.LastRead();
2437         if ( !nRead || !file.Write(buf, nRead) )
2438             return false;
2439     }
2440     while ( !stream.Eof() );
2441
2442     return true;
2443 }
2444
2445 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2446
2447 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
2448