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 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24   #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_DOC_VIEW_ARCHITECTURE
  28
  29 #ifndef WX_PRECOMP
  30     #include "wx/string.h"
  31     #include "wx/utils.h"
  32     #include "wx/app.h"
  33     #include "wx/dc.h"
  34     #include "wx/dialog.h"
  35     #include "wx/menu.h"
  36     #include "wx/list.h"
  37     #include "wx/filedlg.h"
  38     #include "wx/intl.h"
  39     #include "wx/log.h"
  40 #endif
  41
  42 #include "wx/ffile.h"
  43
  44 #ifdef __WXMAC__
  45     #include "wx/filename.h"
  46 #endif
  47
  48 #ifdef __WXGTK__
  49     #include "wx/mdi.h"
  50 #endif
  51
  52 #if wxUSE_PRINTING_ARCHITECTURE
  53   #include "wx/prntbase.h"
  54   #include "wx/printdlg.h"
  55 #endif
  56
  57 #include "wx/msgdlg.h"
  58 #include "wx/choicdlg.h"
  59 #include "wx/docview.h"
  60 #include "wx/confbase.h"
  61 #include "wx/file.h"
  62 #include "wx/cmdproc.h"
  63
  64 #include <stdio.h>
  65 #include <string.h>
  66
  67 #if wxUSE_STD_IOSTREAM
  68   #include "wx/ioswrap.h"
  69   #if wxUSE_IOSTREAMH
  70     #include <fstream.h>
  71   #else
  72     #include <fstream>
  73   #endif
  74 #else
  75   #include "wx/wfstream.h"
  76 #endif
  77
  78 // ----------------------------------------------------------------------------
  79 // wxWidgets macros
  80 // ----------------------------------------------------------------------------
  81
  82 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  83 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  84 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  85 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  86 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  87 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  88
  89 #if wxUSE_PRINTING_ARCHITECTURE
  90     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  91 #endif
  92
  93 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  94
  95 // ----------------------------------------------------------------------------
  96 // function prototypes
  97 // ----------------------------------------------------------------------------
  98
  99 static inline wxString FindExtension(const wxChar *path);
 100 static wxWindow* wxFindSuitableParent(void);
 101
 102 // ----------------------------------------------------------------------------
 103 // local constants
 104 // ----------------------------------------------------------------------------
 105
 106 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 107
 108 // ============================================================================
 109 // implementation
 110 // ============================================================================
 111
 112 // ----------------------------------------------------------------------------
 113 // local functions
 114 // ----------------------------------------------------------------------------
 115
 116 static wxString FindExtension(const wxChar *path)
 117 {
 118     wxString ext;
 119     wxSplitPath(path, NULL, NULL, &ext);
 120
 121     // VZ: extensions are considered not case sensitive - is this really a good
 122     //     idea?
 123     return ext.MakeLower();
 124 }
 125
 126 // ----------------------------------------------------------------------------
 127 // Definition of wxDocument
 128 // ----------------------------------------------------------------------------
 129
 130 wxDocument::wxDocument(wxDocument *parent)
 131 {
 132     m_documentModified = false;
 133     m_documentParent = parent;
 134     m_documentTemplate = (wxDocTemplate *) NULL;
 135     m_commandProcessor = (wxCommandProcessor*) NULL;
 136     m_savedYet = false;
 137 }
 138
 139 bool wxDocument::DeleteContents()
 140 {
 141     return true;
 142 }
 143
 144 wxDocument::~wxDocument()
 145 {
 146     DeleteContents();
 147
 148     if (m_commandProcessor)
 149         delete m_commandProcessor;
 150
 151     if (GetDocumentManager())
 152         GetDocumentManager()->RemoveDocument(this);
 153
 154     // Not safe to do here, since it'll invoke virtual view functions
 155     // expecting to see valid derived objects: and by the time we get here,
 156     // we've called destructors higher up.
 157     //DeleteAllViews();
 158 }
 159
 160 bool wxDocument::Close()
 161 {
 162     if (OnSaveModified())
 163         return OnCloseDocument();
 164     else
 165         return false;
 166 }
 167
 168 bool wxDocument::OnCloseDocument()
 169 {
 170     // Tell all views that we're about to close
 171     NotifyClosing();
 172     DeleteContents();
 173     Modify(false);
 174     return true;
 175 }
 176
 177 // Note that this implicitly deletes the document when the last view is
 178 // deleted.
 179 bool wxDocument::DeleteAllViews()
 180 {
 181     wxDocManager* manager = GetDocumentManager();
 182
 183     // first check if all views agree to be closed
 184     const wxList::iterator end = m_documentViews.end();
 185     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 186     {
 187         wxView *view = (wxView *)*i;
 188         if ( !view->Close() )
 189             return false;
 190     }
 191
 192     // all views agreed to close, now do close them
 193     if ( m_documentViews.empty() )
 194     {
 195         // normally the document would be implicitly deleted when the last view
 196         // is, but if don't have any views, do it here instead
 197         if ( manager && manager->GetDocuments().Member(this) )
 198             delete this;
 199     }
 200     else // have views
 201     {
 202         // as we delete elements we iterate over, don't use the usual "from
 203         // begin to end" loop
 204         for ( ;; )
 205         {
 206             wxView *view = (wxView *)*m_documentViews.begin();
 207
 208             bool isLastOne = m_documentViews.size() == 1;
 209
 210             // this always deletes the node implicitly and if this is the last
 211             // view also deletes this object itself (also implicitly, great),
 212             // so we can't test for m_documentViews.empty() after calling this!
 213             delete view;
 214
 215             if ( isLastOne )
 216                 break;
 217         }
 218     }
 219
 220     return true;
 221 }
 222
 223 wxView *wxDocument::GetFirstView() const
 224 {
 225     if (m_documentViews.GetCount() == 0)
 226         return (wxView *) NULL;
 227     return (wxView *)m_documentViews.GetFirst()->GetData();
 228 }
 229
 230 wxDocManager *wxDocument::GetDocumentManager() const
 231 {
 232     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 233 }
 234
 235 bool wxDocument::OnNewDocument()
 236 {
 237     if (!OnSaveModified())
 238         return false;
 239
 240     if (OnCloseDocument()==false) return false;
 241     DeleteContents();
 242     Modify(false);
 243     SetDocumentSaved(false);
 244
 245     wxString name;
 246     GetDocumentManager()->MakeDefaultName(name);
 247     SetTitle(name);
 248     SetFilename(name, true);
 249
 250     return true;
 251 }
 252
 253 bool wxDocument::Save()
 254 {
 255     if (!IsModified() && m_savedYet)
 256         return true;
 257
 258     if ( m_documentFile.empty() || !m_savedYet )
 259         return SaveAs();
 260
 261     return OnSaveDocument(m_documentFile);
 262 }
 263
 264 bool wxDocument::SaveAs()
 265 {
 266     wxDocTemplate *docTemplate = GetDocumentTemplate();
 267     if (!docTemplate)
 268         return false;
 269
 270 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 271     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 272
 273     // Now see if there are some other template with identical view and document
 274     // classes, whose filters may also be used.
 275
 276     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 277     {
 278         wxList::compatibility_iterator node = wxDocManager::GetDocumentManager()->GetTemplates().GetFirst();
 279         while (node)
 280         {
 281             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 282
 283             if (t->IsVisible() && t != docTemplate &&
 284                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 285                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 286             {
 287                 // add a '|' to separate this filter from the previous one
 288                 if ( !filter.empty() )
 289                     filter << wxT('|');
 290
 291                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 292                        << t->GetFileFilter();
 293             }
 294
 295             node = node->GetNext();
 296         }
 297     }
 298 #else
 299     wxString filter = docTemplate->GetFileFilter() ;
 300 #endif
 301     wxString tmp = wxFileSelector(_("Save as"),
 302             docTemplate->GetDirectory(),
 303             wxFileNameFromPath(GetFilename()),
 304             docTemplate->GetDefaultExtension(),
 305             filter,
 306             wxSAVE | wxOVERWRITE_PROMPT,
 307             GetDocumentWindow());
 308
 309     if (tmp.empty())
 310         return false;
 311
 312     wxString fileName(tmp);
 313     wxString path, name, ext;
 314     wxSplitPath(fileName, & path, & name, & ext);
 315
 316     if (ext.empty())
 317     {
 318         fileName += wxT(".");
 319         fileName += docTemplate->GetDefaultExtension();
 320     }
 321
 322     SetFilename(fileName);
 323     SetTitle(wxFileNameFromPath(fileName));
 324
 325     // Notify the views that the filename has changed
 326     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 327     while (node)
 328     {
 329         wxView *view = (wxView *)node->GetData();
 330         view->OnChangeFilename();
 331         node = node->GetNext();
 332     }
 333
 334     // Files that were not saved correctly are not added to the FileHistory.
 335     if (!OnSaveDocument(m_documentFile))
 336         return false;
 337
 338    // A file that doesn't use the default extension of its document template cannot be opened
 339    // via the FileHistory, so we do not add it.
 340    if (docTemplate->FileMatchesTemplate(fileName))
 341    {
 342        GetDocumentManager()->AddFileToHistory(fileName);
 343    }
 344    else
 345    {
 346        // The user will probably not be able to open the file again, so
 347        // we could warn about the wrong file-extension here.
 348    }
 349    return true;
 350 }
 351
 352 bool wxDocument::OnSaveDocument(const wxString& file)
 353 {
 354     if ( !file )
 355         return false;
 356
 357     if ( !DoSaveDocument(file) )
 358         return false;
 359
 360     Modify(false);
 361     SetFilename(file);
 362     SetDocumentSaved(true);
 363 #ifdef __WXMAC__
 364     wxFileName fn(file) ;
 365     fn.MacSetDefaultTypeAndCreator() ;
 366 #endif
 367     return true;
 368 }
 369
 370 bool wxDocument::OnOpenDocument(const wxString& file)
 371 {
 372     if (!OnSaveModified())
 373         return false;
 374
 375     if ( !DoOpenDocument(file) )
 376         return false;
 377
 378     SetFilename(file, true);
 379     Modify(false);
 380     m_savedYet = true;
 381
 382     UpdateAllViews();
 383
 384     return true;
 385 }
 386
 387 #if wxUSE_STD_IOSTREAM
 388 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 389 #else
 390 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 391 #endif
 392 {
 393     return stream;
 394 }
 395
 396 #if wxUSE_STD_IOSTREAM
 397 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 398 #else
 399 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 400 #endif
 401 {
 402     return stream;
 403 }
 404
 405 bool wxDocument::Revert()
 406 {
 407     return false;
 408 }
 409
 410
 411 // Get title, or filename if no title, else unnamed
 412 bool wxDocument::GetPrintableName(wxString& buf) const
 413 {
 414     if (!m_documentTitle.empty())
 415     {
 416         buf = m_documentTitle;
 417         return true;
 418     }
 419     else if (!m_documentFile.empty())
 420     {
 421         buf = wxFileNameFromPath(m_documentFile);
 422         return true;
 423     }
 424     else
 425     {
 426         buf = _("unnamed");
 427         return true;
 428     }
 429 }
 430
 431 wxWindow *wxDocument::GetDocumentWindow() const
 432 {
 433     wxView *view = GetFirstView();
 434     if (view)
 435         return view->GetFrame();
 436     else
 437         return wxTheApp->GetTopWindow();
 438 }
 439
 440 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 441 {
 442     return new wxCommandProcessor;
 443 }
 444
 445 // true if safe to close
 446 bool wxDocument::OnSaveModified()
 447 {
 448     if (IsModified())
 449     {
 450         wxString title;
 451         GetPrintableName(title);
 452
 453         wxString msgTitle;
 454         if (!wxTheApp->GetAppName().empty())
 455             msgTitle = wxTheApp->GetAppName();
 456         else
 457             msgTitle = wxString(_("Warning"));
 458
 459         wxString prompt;
 460         prompt.Printf(_("Do you want to save changes to document %s?"),
 461                 (const wxChar *)title);
 462         int res = wxMessageBox(prompt, msgTitle,
 463                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 464                 GetDocumentWindow());
 465         if (res == wxNO)
 466         {
 467             Modify(false);
 468             return true;
 469         }
 470         else if (res == wxYES)
 471             return Save();
 472         else if (res == wxCANCEL)
 473             return false;
 474     }
 475     return true;
 476 }
 477
 478 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 479 {
 480     return true;
 481 }
 482
 483 bool wxDocument::AddView(wxView *view)
 484 {
 485     if (!m_documentViews.Member(view))
 486     {
 487         m_documentViews.Append(view);
 488         OnChangedViewList();
 489     }
 490     return true;
 491 }
 492
 493 bool wxDocument::RemoveView(wxView *view)
 494 {
 495     (void)m_documentViews.DeleteObject(view);
 496     OnChangedViewList();
 497     return true;
 498 }
 499
 500 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 501 {
 502     if (GetDocumentTemplate()->CreateView(this, flags))
 503         return true;
 504     else
 505         return false;
 506 }
 507
 508 // Called after a view is added or removed.
 509 // The default implementation deletes the document if
 510 // there are no more views.
 511 void wxDocument::OnChangedViewList()
 512 {
 513     if (m_documentViews.GetCount() == 0)
 514     {
 515         if (OnSaveModified())
 516         {
 517             delete this;
 518         }
 519     }
 520 }
 521
 522 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 523 {
 524     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 525     while (node)
 526     {
 527         wxView *view = (wxView *)node->GetData();
 528         if (view != sender)
 529             view->OnUpdate(sender, hint);
 530         node = node->GetNext();
 531     }
 532 }
 533
 534 void wxDocument::NotifyClosing()
 535 {
 536     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 537     while (node)
 538     {
 539         wxView *view = (wxView *)node->GetData();
 540         view->OnClosingDocument();
 541         node = node->GetNext();
 542     }
 543 }
 544
 545 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 546 {
 547     m_documentFile = filename;
 548     if ( notifyViews )
 549     {
 550         // Notify the views that the filename has changed
 551         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 552         while (node)
 553         {
 554             wxView *view = (wxView *)node->GetData();
 555             view->OnChangeFilename();
 556             node = node->GetNext();
 557         }
 558     }
 559 }
 560
 561 bool wxDocument::DoSaveDocument(const wxString& file)
 562 {
 563     wxString msgTitle;
 564     if (!wxTheApp->GetAppName().empty())
 565         msgTitle = wxTheApp->GetAppName();
 566     else
 567         msgTitle = wxString(_("File error"));
 568
 569 #if wxUSE_STD_IOSTREAM
 570     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 571     if (store.fail() || store.bad())
 572 #else
 573     wxFileOutputStream store(file);
 574     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 575 #endif
 576     {
 577         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 578                            GetDocumentWindow());
 579         // Saving error
 580         return false;
 581     }
 582     if (!SaveObject(store))
 583     {
 584         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 585                            GetDocumentWindow());
 586         // Saving error
 587         return false;
 588     }
 589
 590     return true;
 591 }
 592
 593 bool wxDocument::DoOpenDocument(const wxString& file)
 594 {
 595 #if wxUSE_STD_IOSTREAM
 596     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 597     if (!store.fail() && !store.bad())
 598 #else
 599     wxFileInputStream store(file);
 600     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 601 #endif
 602     {
 603 #if wxUSE_STD_IOSTREAM
 604         LoadObject(store);
 605         if ( !!store || store.eof() )
 606 #else
 607         int res = LoadObject(store).GetLastError();
 608         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 609 #endif
 610             return true;
 611     }
 612
 613     wxLogError(_("Sorry, could not open this file."));
 614     return false;
 615 }
 616
 617
 618 // ----------------------------------------------------------------------------
 619 // Document view
 620 // ----------------------------------------------------------------------------
 621
 622 wxView::wxView()
 623 {
 624     m_viewDocument = (wxDocument*) NULL;
 625
 626     m_viewFrame = (wxFrame *) NULL;
 627 }
 628
 629 wxView::~wxView()
 630 {
 631     GetDocumentManager()->ActivateView(this, false);
 632     m_viewDocument->RemoveView(this);
 633 }
 634
 635 // Extend event processing to search the document's event table
 636 bool wxView::ProcessEvent(wxEvent& event)
 637 {
 638     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 639         return wxEvtHandler::ProcessEvent(event);
 640
 641     return true;
 642 }
 643
 644 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 645 {
 646 }
 647
 648 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 649 {
 650     OnDraw(dc);
 651 }
 652
 653 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 654 {
 655 }
 656
 657 void wxView::OnChangeFilename()
 658 {
 659     if (GetFrame() && GetDocument())
 660     {
 661         wxString title;
 662
 663         GetDocument()->GetPrintableName(title);
 664
 665         GetFrame()->SetTitle(title);
 666     }
 667 }
 668
 669 void wxView::SetDocument(wxDocument *doc)
 670 {
 671     m_viewDocument = doc;
 672     if (doc)
 673         doc->AddView(this);
 674 }
 675
 676 bool wxView::Close(bool deleteWindow)
 677 {
 678     if (OnClose(deleteWindow))
 679         return true;
 680     else
 681         return false;
 682 }
 683
 684 void wxView::Activate(bool activate)
 685 {
 686     if (GetDocument() && GetDocumentManager())
 687     {
 688         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 689         GetDocumentManager()->ActivateView(this, activate);
 690     }
 691 }
 692
 693 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 694 {
 695     return GetDocument() ? GetDocument()->Close() : true;
 696 }
 697
 698 #if wxUSE_PRINTING_ARCHITECTURE
 699 wxPrintout *wxView::OnCreatePrintout()
 700 {
 701     return new wxDocPrintout(this);
 702 }
 703 #endif // wxUSE_PRINTING_ARCHITECTURE
 704
 705 // ----------------------------------------------------------------------------
 706 // wxDocTemplate
 707 // ----------------------------------------------------------------------------
 708
 709 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 710                              const wxString& descr,
 711                              const wxString& filter,
 712                              const wxString& dir,
 713                              const wxString& ext,
 714                              const wxString& docTypeName,
 715                              const wxString& viewTypeName,
 716                              wxClassInfo *docClassInfo,
 717                              wxClassInfo *viewClassInfo,
 718                              long flags)
 719 {
 720     m_documentManager = manager;
 721     m_description = descr;
 722     m_directory = dir;
 723     m_defaultExt = ext;
 724     m_fileFilter = filter;
 725     m_flags = flags;
 726     m_docTypeName = docTypeName;
 727     m_viewTypeName = viewTypeName;
 728     m_documentManager->AssociateTemplate(this);
 729
 730     m_docClassInfo = docClassInfo;
 731     m_viewClassInfo = viewClassInfo;
 732 }
 733
 734 wxDocTemplate::~wxDocTemplate()
 735 {
 736     m_documentManager->DisassociateTemplate(this);
 737 }
 738
 739 // Tries to dynamically construct an object of the right class.
 740 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 741 {
 742     wxDocument *doc = DoCreateDocument();
 743     if ( doc == NULL )
 744         return (wxDocument *) NULL;
 745
 746     if (InitDocument(doc, path, flags))
 747     {
 748         return doc;
 749     }
 750     else
 751     {
 752         return (wxDocument *) NULL;
 753     }
 754 }
 755
 756 bool wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 757 {
 758     doc->SetFilename(path);
 759     doc->SetDocumentTemplate(this);
 760     GetDocumentManager()->AddDocument(doc);
 761     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 762
 763     if (doc->OnCreate(path, flags))
 764         return true;
 765     else
 766     {
 767         if (GetDocumentManager()->GetDocuments().Member(doc))
 768             doc->DeleteAllViews();
 769         return false;
 770     }
 771 }
 772
 773 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 774 {
 775     wxView *view = DoCreateView();
 776     if ( view == NULL )
 777         return (wxView *) NULL;
 778
 779     view->SetDocument(doc);
 780     if (view->OnCreate(doc, flags))
 781     {
 782         return view;
 783     }
 784     else
 785     {
 786         delete view;
 787         return (wxView *) NULL;
 788     }
 789 }
 790
 791 // The default (very primitive) format detection: check is the extension is
 792 // that of the template
 793 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 794 {
 795     return GetDefaultExtension().IsSameAs(FindExtension(path));
 796 }
 797
 798 wxDocument *wxDocTemplate::DoCreateDocument()
 799 {
 800     if (!m_docClassInfo)
 801         return (wxDocument *) NULL;
 802
 803     return (wxDocument *)m_docClassInfo->CreateObject();
 804 }
 805
 806 wxView *wxDocTemplate::DoCreateView()
 807 {
 808     if (!m_viewClassInfo)
 809         return (wxView *) NULL;
 810
 811     return (wxView *)m_viewClassInfo->CreateObject();
 812 }
 813
 814 // ----------------------------------------------------------------------------
 815 // wxDocManager
 816 // ----------------------------------------------------------------------------
 817
 818 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 819     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 820     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 821     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 822     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 823     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 824     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 825     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 826     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 827     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 828
 829     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 830     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 831     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 832     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 833     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 834     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 835     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 836     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 837     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 838
 839 #if wxUSE_PRINTING_ARCHITECTURE
 840     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 841     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 842
 843     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 844     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 845 #endif
 846 END_EVENT_TABLE()
 847
 848 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 849
 850 wxDocManager::wxDocManager(long flags, bool initialize)
 851 {
 852     m_defaultDocumentNameCounter = 1;
 853     m_flags = flags;
 854     m_currentView = (wxView *) NULL;
 855     m_maxDocsOpen = 10000;
 856     m_fileHistory = (wxFileHistory *) NULL;
 857     if (initialize)
 858         Initialize();
 859     sm_docManager = this;
 860 }
 861
 862 wxDocManager::~wxDocManager()
 863 {
 864     Clear();
 865     if (m_fileHistory)
 866         delete m_fileHistory;
 867     sm_docManager = (wxDocManager*) NULL;
 868 }
 869
 870 // closes the specified document
 871 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 872 {
 873     if (doc->Close() || force)
 874     {
 875         // Implicitly deletes the document when
 876         // the last view is deleted
 877         doc->DeleteAllViews();
 878
 879         // Check we're really deleted
 880         if (m_docs.Member(doc))
 881             delete doc;
 882
 883         return true;
 884     }
 885     return false;
 886 }
 887
 888 bool wxDocManager::CloseDocuments(bool force)
 889 {
 890     wxList::compatibility_iterator node = m_docs.GetFirst();
 891     while (node)
 892     {
 893         wxDocument *doc = (wxDocument *)node->GetData();
 894         wxList::compatibility_iterator next = node->GetNext();
 895
 896         if (!CloseDocument(doc, force))
 897             return false;
 898
 899         // This assumes that documents are not connected in
 900         // any way, i.e. deleting one document does NOT
 901         // delete another.
 902         node = next;
 903     }
 904     return true;
 905 }
 906
 907 bool wxDocManager::Clear(bool force)
 908 {
 909     if (!CloseDocuments(force))
 910         return false;
 911
 912     m_currentView = NULL;
 913
 914     wxList::compatibility_iterator node = m_templates.GetFirst();
 915     while (node)
 916     {
 917         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 918         wxList::compatibility_iterator next = node->GetNext();
 919         delete templ;
 920         node = next;
 921     }
 922     return true;
 923 }
 924
 925 bool wxDocManager::Initialize()
 926 {
 927     m_fileHistory = OnCreateFileHistory();
 928     return true;
 929 }
 930
 931 wxFileHistory *wxDocManager::OnCreateFileHistory()
 932 {
 933     return new wxFileHistory;
 934 }
 935
 936 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 937 {
 938     wxDocument *doc = GetCurrentDocument();
 939     if (!doc)
 940         return;
 941     if (doc->Close())
 942     {
 943         doc->DeleteAllViews();
 944         if (m_docs.Member(doc))
 945             delete doc;
 946     }
 947 }
 948
 949 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 950 {
 951     CloseDocuments(false);
 952 }
 953
 954 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 955 {
 956     CreateDocument( wxEmptyString, wxDOC_NEW );
 957 }
 958
 959 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 960 {
 961     if ( !CreateDocument( wxEmptyString, 0) )
 962     {
 963         OnOpenFileFailure();
 964     }
 965 }
 966
 967 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 968 {
 969     wxDocument *doc = GetCurrentDocument();
 970     if (!doc)
 971         return;
 972     doc->Revert();
 973 }
 974
 975 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 976 {
 977     wxDocument *doc = GetCurrentDocument();
 978     if (!doc)
 979         return;
 980     doc->Save();
 981 }
 982
 983 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
 984 {
 985     wxDocument *doc = GetCurrentDocument();
 986     if (!doc)
 987         return;
 988     doc->SaveAs();
 989 }
 990
 991 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
 992 {
 993 #if wxUSE_PRINTING_ARCHITECTURE
 994     wxView *view = GetCurrentView();
 995     if (!view)
 996         return;
 997
 998     wxPrintout *printout = view->OnCreatePrintout();
 999     if (printout)
1000     {
1001         wxPrinter printer;
1002         printer.Print(view->GetFrame(), printout, true);
1003
1004         delete printout;
1005     }
1006 #endif // wxUSE_PRINTING_ARCHITECTURE
1007 }
1008
1009 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1010 {
1011 #if wxUSE_PRINTING_ARCHITECTURE
1012     wxView *view = GetCurrentView();
1013     if (!view)
1014         return;
1015
1016     wxPrintout *printout = view->OnCreatePrintout();
1017     if (printout)
1018     {
1019         // Pass two printout objects: for preview, and possible printing.
1020         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1021         if ( !preview->Ok() )
1022         {
1023             delete preview;
1024             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1025             return;
1026         }
1027
1028         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1029                 wxPoint(100, 100), wxSize(600, 650));
1030         frame->Centre(wxBOTH);
1031         frame->Initialize();
1032         frame->Show(true);
1033     }
1034 #endif // wxUSE_PRINTING_ARCHITECTURE
1035 }
1036
1037 void wxDocManager::OnUndo(wxCommandEvent& event)
1038 {
1039     wxDocument *doc = GetCurrentDocument();
1040     if (!doc)
1041         return;
1042     if (doc->GetCommandProcessor())
1043         doc->GetCommandProcessor()->Undo();
1044     else
1045         event.Skip();
1046 }
1047
1048 void wxDocManager::OnRedo(wxCommandEvent& event)
1049 {
1050     wxDocument *doc = GetCurrentDocument();
1051     if (!doc)
1052         return;
1053     if (doc->GetCommandProcessor())
1054         doc->GetCommandProcessor()->Redo();
1055     else
1056         event.Skip();
1057 }
1058
1059 // Handlers for UI update commands
1060
1061 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1062 {
1063     event.Enable( true );
1064 }
1065
1066 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1067 {
1068     wxDocument *doc = GetCurrentDocument();
1069     event.Enable( (doc != (wxDocument*) NULL) );
1070 }
1071
1072 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1073 {
1074     wxDocument *doc = GetCurrentDocument();
1075     event.Enable( (doc != (wxDocument*) NULL) );
1076 }
1077
1078 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1079 {
1080     event.Enable( true );
1081 }
1082
1083 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1084 {
1085     wxDocument *doc = GetCurrentDocument();
1086     event.Enable( doc && doc->IsModified() );
1087 }
1088
1089 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1090 {
1091     wxDocument *doc = GetCurrentDocument();
1092     event.Enable( (doc != (wxDocument*) NULL) );
1093 }
1094
1095 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1096 {
1097     wxDocument *doc = GetCurrentDocument();
1098     if (!doc)
1099         event.Enable(false);
1100     else if (!doc->GetCommandProcessor())
1101         event.Skip();
1102     else
1103     {
1104         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1105         doc->GetCommandProcessor()->SetMenuStrings();
1106     }
1107 }
1108
1109 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1110 {
1111     wxDocument *doc = GetCurrentDocument();
1112     if (!doc)
1113         event.Enable(false);
1114     else if (!doc->GetCommandProcessor())
1115         event.Skip();
1116     else
1117     {
1118         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1119         doc->GetCommandProcessor()->SetMenuStrings();
1120     }
1121 }
1122
1123 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1124 {
1125     wxDocument *doc = GetCurrentDocument();
1126     event.Enable( (doc != (wxDocument*) NULL) );
1127 }
1128
1129 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1130 {
1131     wxDocument *doc = GetCurrentDocument();
1132     event.Enable( (doc != (wxDocument*) NULL) );
1133 }
1134
1135 wxView *wxDocManager::GetCurrentView() const
1136 {
1137     if (m_currentView)
1138         return m_currentView;
1139     if (m_docs.GetCount() == 1)
1140     {
1141         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1142         return doc->GetFirstView();
1143     }
1144     return (wxView *) NULL;
1145 }
1146
1147 // Extend event processing to search the view's event table
1148 bool wxDocManager::ProcessEvent(wxEvent& event)
1149 {
1150     wxView* view = GetCurrentView();
1151     if (view)
1152     {
1153         if (view->ProcessEvent(event))
1154             return true;
1155     }
1156     return wxEvtHandler::ProcessEvent(event);
1157 }
1158
1159 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1160 {
1161     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1162     int               n = 0;
1163
1164     for (size_t i = 0; i < m_templates.GetCount(); i++)
1165     {
1166         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1167         if (temp->IsVisible())
1168         {
1169             templates[n] = temp;
1170             n ++;
1171         }
1172     }
1173     if (n == 0)
1174     {
1175         delete[] templates;
1176         return (wxDocument *) NULL;
1177     }
1178
1179     wxDocument* docToClose = NULL;
1180
1181     // If we've reached the max number of docs, close the
1182     // first one.
1183     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1184     {
1185         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1186         docToClose = doc;
1187     }
1188
1189     // New document: user chooses a template, unless there's only one.
1190     if (flags & wxDOC_NEW)
1191     {
1192         if (n == 1)
1193         {
1194             if (docToClose)
1195             {
1196                 if (!CloseDocument(docToClose, false))
1197                 {
1198                     delete[] templates;
1199                     return NULL;
1200                 }
1201             }
1202
1203             wxDocTemplate *temp = templates[0];
1204             delete[] templates;
1205             wxDocument *newDoc = temp->CreateDocument(path, flags);
1206
1207             if (newDoc)
1208             {
1209                 newDoc->SetDocumentName(temp->GetDocumentName());
1210                 newDoc->SetDocumentTemplate(temp);
1211                 if (!newDoc->OnNewDocument() )
1212                 {
1213                      // Document is implicitly deleted by DeleteAllViews
1214                      newDoc->DeleteAllViews();
1215                      return NULL;
1216                 }
1217             }
1218             return newDoc;
1219         }
1220
1221         wxDocTemplate *temp = SelectDocumentType(templates, n);
1222         delete[] templates;
1223         if (temp)
1224         {
1225             if (docToClose)
1226             {
1227                 if (!CloseDocument(docToClose, false))
1228                 {
1229                     return NULL;
1230                 }
1231             }
1232
1233             wxDocument *newDoc = temp->CreateDocument(path, flags);
1234
1235             if (newDoc)
1236             {
1237                 newDoc->SetDocumentName(temp->GetDocumentName());
1238                 newDoc->SetDocumentTemplate(temp);
1239                 if (!newDoc->OnNewDocument() )
1240                 {
1241                      // Document is implicitly deleted by DeleteAllViews
1242                      newDoc->DeleteAllViews();
1243                      return NULL;
1244                 }
1245             }
1246             return newDoc;
1247         }
1248         else
1249             return (wxDocument *) NULL;
1250     }
1251
1252     // Existing document
1253     wxDocTemplate *temp;
1254
1255     wxString path2 = path;
1256
1257     if (flags & wxDOC_SILENT)
1258     {
1259         temp = FindTemplateForPath(path2);
1260         if (!temp)
1261         {
1262             // Since we do not add files with non-default extensions to the FileHistory this
1263             // can only happen if the application changes the allowed templates in runtime.
1264             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1265                                 _("Open File"),
1266                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1267         }
1268     }
1269     else
1270         temp = SelectDocumentPath(templates, n, path2, flags);
1271
1272     delete[] templates;
1273
1274     if (temp)
1275     {
1276         if (docToClose)
1277         {
1278             if (!CloseDocument(docToClose, false))
1279             {
1280                 return NULL;
1281             }
1282         }
1283
1284         //see if this file is already open
1285         for (size_t i = 0; i < GetDocuments().GetCount(); ++i)
1286         {
1287             wxDocument* currentDoc = (wxDocument*)(GetDocuments().Item(i)->GetData());
1288 #ifdef __WXMSW__
1289             //file paths are case-insensitive on Windows
1290             if (path2.CmpNoCase(currentDoc->GetFilename()) == 0)
1291 #else
1292             if (path2.Cmp(currentDoc->GetFilename()) == 0)
1293 #endif
1294             {
1295                 //file already open. Just activate it and return
1296                 if (currentDoc->GetFirstView())
1297                 {
1298                     ActivateView(currentDoc->GetFirstView(), true);
1299                     if (currentDoc->GetDocumentWindow())
1300                         currentDoc->GetDocumentWindow()->SetFocus();
1301                     return currentDoc;
1302                 }
1303             }
1304         }
1305
1306         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1307         if (newDoc)
1308         {
1309             newDoc->SetDocumentName(temp->GetDocumentName());
1310             newDoc->SetDocumentTemplate(temp);
1311             if (!newDoc->OnOpenDocument(path2))
1312             {
1313                 newDoc->DeleteAllViews();
1314                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1315                 return (wxDocument *) NULL;
1316             }
1317             // A file that doesn't use the default extension of its document
1318             // template cannot be opened via the FileHistory, so we do not
1319             // add it.
1320             if (temp->FileMatchesTemplate(path2))
1321                 AddFileToHistory(path2);
1322         }
1323         return newDoc;
1324     }
1325
1326     return (wxDocument *) NULL;
1327 }
1328
1329 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1330 {
1331     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1332     int               n =0;
1333
1334     for (size_t i = 0; i < m_templates.GetCount(); i++)
1335     {
1336         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1337         if (temp->IsVisible())
1338         {
1339             if (temp->GetDocumentName() == doc->GetDocumentName())
1340             {
1341                 templates[n] = temp;
1342                 n ++;
1343             }
1344         }
1345     }
1346     if (n == 0)
1347     {
1348         delete[] templates;
1349         return (wxView *) NULL;
1350     }
1351     if (n == 1)
1352     {
1353         wxDocTemplate *temp = templates[0];
1354         delete[] templates;
1355         wxView *view = temp->CreateView(doc, flags);
1356         if (view)
1357             view->SetViewName(temp->GetViewName());
1358         return view;
1359     }
1360
1361     wxDocTemplate *temp = SelectViewType(templates, n);
1362     delete[] templates;
1363     if (temp)
1364     {
1365         wxView *view = temp->CreateView(doc, flags);
1366         if (view)
1367             view->SetViewName(temp->GetViewName());
1368         return view;
1369     }
1370     else
1371         return (wxView *) NULL;
1372 }
1373
1374 // Not yet implemented
1375 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1376 {
1377 }
1378
1379 // Not yet implemented
1380 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1381 {
1382     return false;
1383 }
1384
1385 wxDocument *wxDocManager::GetCurrentDocument() const
1386 {
1387     wxView *view = GetCurrentView();
1388     if (view)
1389         return view->GetDocument();
1390     else
1391         return (wxDocument *) NULL;
1392 }
1393
1394 // Make a default document name
1395 bool wxDocManager::MakeDefaultName(wxString& name)
1396 {
1397     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1398     m_defaultDocumentNameCounter++;
1399
1400     return true;
1401 }
1402
1403 // Make a frame title (override this to do something different)
1404 // If docName is empty, a document is not currently active.
1405 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1406 {
1407     wxString appName = wxTheApp->GetAppName();
1408     wxString title;
1409     if (!doc)
1410         title = appName;
1411     else
1412     {
1413         wxString docName;
1414         doc->GetPrintableName(docName);
1415         title = docName + wxString(_(" - ")) + appName;
1416     }
1417     return title;
1418 }
1419
1420
1421 // Not yet implemented
1422 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1423 {
1424     return (wxDocTemplate *) NULL;
1425 }
1426
1427 // File history management
1428 void wxDocManager::AddFileToHistory(const wxString& file)
1429 {
1430     if (m_fileHistory)
1431         m_fileHistory->AddFileToHistory(file);
1432 }
1433
1434 void wxDocManager::RemoveFileFromHistory(size_t i)
1435 {
1436     if (m_fileHistory)
1437         m_fileHistory->RemoveFileFromHistory(i);
1438 }
1439
1440 wxString wxDocManager::GetHistoryFile(size_t i) const
1441 {
1442     wxString histFile;
1443
1444     if (m_fileHistory)
1445         histFile = m_fileHistory->GetHistoryFile(i);
1446
1447     return histFile;
1448 }
1449
1450 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1451 {
1452     if (m_fileHistory)
1453         m_fileHistory->UseMenu(menu);
1454 }
1455
1456 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1457 {
1458     if (m_fileHistory)
1459         m_fileHistory->RemoveMenu(menu);
1460 }
1461
1462 #if wxUSE_CONFIG
1463 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1464 {
1465     if (m_fileHistory)
1466         m_fileHistory->Load(config);
1467 }
1468
1469 void wxDocManager::FileHistorySave(wxConfigBase& config)
1470 {
1471     if (m_fileHistory)
1472         m_fileHistory->Save(config);
1473 }
1474 #endif
1475
1476 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1477 {
1478     if (m_fileHistory)
1479         m_fileHistory->AddFilesToMenu(menu);
1480 }
1481
1482 void wxDocManager::FileHistoryAddFilesToMenu()
1483 {
1484     if (m_fileHistory)
1485         m_fileHistory->AddFilesToMenu();
1486 }
1487
1488 size_t wxDocManager::GetHistoryFilesCount() const
1489 {
1490     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1491 }
1492
1493
1494 // Find out the document template via matching in the document file format
1495 // against that of the template
1496 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1497 {
1498     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1499
1500     // Find the template which this extension corresponds to
1501     for (size_t i = 0; i < m_templates.GetCount(); i++)
1502     {
1503         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1504         if ( temp->FileMatchesTemplate(path) )
1505         {
1506             theTemplate = temp;
1507             break;
1508         }
1509     }
1510     return theTemplate;
1511 }
1512
1513 // Try to get a more suitable parent frame than the top window,
1514 // for selection dialogs. Otherwise you may get an unexpected
1515 // window being activated when a dialog is shown.
1516 static wxWindow* wxFindSuitableParent()
1517 {
1518     wxWindow* parent = wxTheApp->GetTopWindow();
1519
1520     wxWindow* focusWindow = wxWindow::FindFocus();
1521     if (focusWindow)
1522     {
1523         while (focusWindow &&
1524                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1525                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1526
1527             focusWindow = focusWindow->GetParent();
1528
1529         if (focusWindow)
1530             parent = focusWindow;
1531     }
1532     return parent;
1533 }
1534
1535 // Prompts user to open a file, using file specs in templates.
1536 // Must extend the file selector dialog or implement own; OR
1537 // match the extension to the template extension.
1538
1539 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1540 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1541                                                 int noTemplates,
1542 #else
1543                                                 int WXUNUSED(noTemplates),
1544 #endif
1545                                                 wxString& path,
1546                                                 long WXUNUSED(flags),
1547                                                 bool WXUNUSED(save))
1548 {
1549     // We can only have multiple filters in Windows and GTK
1550 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1551     wxString descrBuf;
1552
1553     int i;
1554     for (i = 0; i < noTemplates; i++)
1555     {
1556         if (templates[i]->IsVisible())
1557         {
1558             // add a '|' to separate this filter from the previous one
1559             if ( !descrBuf.empty() )
1560                 descrBuf << wxT('|');
1561
1562             descrBuf << templates[i]->GetDescription()
1563                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1564                 << templates[i]->GetFileFilter();
1565         }
1566     }
1567 #else
1568     wxString descrBuf = wxT("*.*");
1569 #endif
1570
1571     int FilterIndex = -1;
1572
1573     wxWindow* parent = wxFindSuitableParent();
1574
1575     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1576                                         m_lastDirectory,
1577                                         wxEmptyString,
1578                                         &FilterIndex,
1579                                         descrBuf,
1580                                         0,
1581                                         parent);
1582
1583     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1584     if (!pathTmp.empty())
1585     {
1586         if (!wxFileExists(pathTmp))
1587         {
1588             wxString msgTitle;
1589             if (!wxTheApp->GetAppName().empty())
1590                 msgTitle = wxTheApp->GetAppName();
1591             else
1592                 msgTitle = wxString(_("File error"));
1593
1594             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1595                 parent);
1596
1597             path = wxEmptyString;
1598             return (wxDocTemplate *) NULL;
1599         }
1600         m_lastDirectory = wxPathOnly(pathTmp);
1601
1602         path = pathTmp;
1603
1604         // first choose the template using the extension, if this fails (i.e.
1605         // wxFileSelectorEx() didn't fill it), then use the path
1606         if ( FilterIndex != -1 )
1607             theTemplate = templates[FilterIndex];
1608         if ( !theTemplate )
1609             theTemplate = FindTemplateForPath(path);
1610         if ( !theTemplate )
1611         {
1612             // Since we do not add files with non-default extensions to the FileHistory this
1613             // can only happen if the application changes the allowed templates in runtime.
1614             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1615                                 _("Open File"),
1616                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1617         }
1618     }
1619     else
1620     {
1621         path = wxEmptyString;
1622     }
1623
1624     return theTemplate;
1625 }
1626
1627 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1628                                                 int noTemplates, bool sort)
1629 {
1630     wxArrayString strings;
1631     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1632     int i;
1633     int n = 0;
1634
1635     for (i = 0; i < noTemplates; i++)
1636     {
1637         if (templates[i]->IsVisible())
1638         {
1639             int j;
1640             bool want = true;
1641             for (j = 0; j < n; j++)
1642             {
1643                 //filter out NOT unique documents + view combinations
1644                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1645                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1646                    )
1647                     want = false;
1648             }
1649
1650             if ( want )
1651             {
1652                 strings.Add(templates[i]->m_description);
1653
1654                 data[n] = templates[i];
1655                 n ++;
1656             }
1657         }
1658     }  // for
1659
1660     if (sort)
1661     {
1662         strings.Sort(); // ascending sort
1663         // Yes, this will be slow, but template lists
1664         // are typically short.
1665         int j;
1666         n = strings.Count();
1667         for (i = 0; i < n; i++)
1668         {
1669             for (j = 0; j < noTemplates; j++)
1670             {
1671                 if (strings[i] == templates[j]->m_description)
1672                     data[i] = templates[j];
1673             }
1674         }
1675     }
1676
1677     wxDocTemplate *theTemplate;
1678
1679     switch ( n )
1680     {
1681         case 0:
1682             // no visible templates, hence nothing to choose from
1683             theTemplate = NULL;
1684             break;
1685
1686         case 1:
1687             // don't propose the user to choose if he heas no choice
1688             theTemplate = data[0];
1689             break;
1690
1691         default:
1692             // propose the user to choose one of several
1693             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1694                           (
1695                             _("Select a document template"),
1696                             _("Templates"),
1697                             strings,
1698                             (void **)data,
1699                             wxFindSuitableParent()
1700                           );
1701     }
1702
1703     delete[] data;
1704
1705     return theTemplate;
1706 }
1707
1708 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1709                                             int noTemplates, bool sort)
1710 {
1711     wxArrayString strings;
1712     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1713     int i;
1714     int n = 0;
1715
1716     for (i = 0; i < noTemplates; i++)
1717     {
1718         wxDocTemplate *templ = templates[i];
1719         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1720         {
1721             int j;
1722             bool want = true;
1723             for (j = 0; j < n; j++)
1724             {
1725                 //filter out NOT unique views
1726                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1727                     want = false;
1728             }
1729
1730             if ( want )
1731             {
1732                 strings.Add(templ->m_viewTypeName);
1733                 data[n] = templ;
1734                 n ++;
1735             }
1736         }
1737     }
1738
1739     if (sort)
1740     {
1741         strings.Sort(); // ascending sort
1742         // Yes, this will be slow, but template lists
1743         // are typically short.
1744         int j;
1745         n = strings.Count();
1746         for (i = 0; i < n; i++)
1747         {
1748             for (j = 0; j < noTemplates; j++)
1749             {
1750                 if (strings[i] == templates[j]->m_viewTypeName)
1751                     data[i] = templates[j];
1752             }
1753         }
1754     }
1755
1756     wxDocTemplate *theTemplate;
1757
1758     // the same logic as above
1759     switch ( n )
1760     {
1761         case 0:
1762             theTemplate = (wxDocTemplate *)NULL;
1763             break;
1764
1765         case 1:
1766             theTemplate = data[0];
1767             break;
1768
1769         default:
1770             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1771                           (
1772                             _("Select a document view"),
1773                             _("Views"),
1774                             strings,
1775                             (void **)data,
1776                             wxFindSuitableParent()
1777                           );
1778
1779     }
1780
1781     delete[] data;
1782     return theTemplate;
1783 }
1784
1785 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1786 {
1787     if (!m_templates.Member(temp))
1788         m_templates.Append(temp);
1789 }
1790
1791 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1792 {
1793     m_templates.DeleteObject(temp);
1794 }
1795
1796 // Add and remove a document from the manager's list
1797 void wxDocManager::AddDocument(wxDocument *doc)
1798 {
1799     if (!m_docs.Member(doc))
1800         m_docs.Append(doc);
1801 }
1802
1803 void wxDocManager::RemoveDocument(wxDocument *doc)
1804 {
1805     m_docs.DeleteObject(doc);
1806 }
1807
1808 // Views or windows should inform the document manager
1809 // when a view is going in or out of focus
1810 void wxDocManager::ActivateView(wxView *view, bool activate)
1811 {
1812     if ( activate )
1813     {
1814         m_currentView = view;
1815     }
1816     else // deactivate
1817     {
1818         if ( m_currentView == view )
1819         {
1820             // don't keep stale pointer
1821             m_currentView = (wxView *) NULL;
1822         }
1823     }
1824 }
1825
1826 // ----------------------------------------------------------------------------
1827 // Default document child frame
1828 // ----------------------------------------------------------------------------
1829
1830 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1831     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1832     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1833 END_EVENT_TABLE()
1834
1835 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1836                                  wxView *view,
1837                                  wxFrame *frame,
1838                                  wxWindowID id,
1839                                  const wxString& title,
1840                                  const wxPoint& pos,
1841                                  const wxSize& size,
1842                                  long style,
1843                                  const wxString& name)
1844                : wxFrame(frame, id, title, pos, size, style, name)
1845 {
1846     m_childDocument = doc;
1847     m_childView = view;
1848     if (view)
1849         view->SetFrame(this);
1850 }
1851
1852 // Extend event processing to search the view's event table
1853 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1854 {
1855     if (m_childView)
1856         m_childView->Activate(true);
1857
1858     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1859     {
1860         // Only hand up to the parent if it's a menu command
1861         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1862             return wxEvtHandler::ProcessEvent(event);
1863         else
1864             return true;
1865     }
1866     else
1867         return true;
1868 }
1869
1870 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1871 {
1872     wxFrame::OnActivate(event);
1873
1874     if (m_childView)
1875         m_childView->Activate(event.GetActive());
1876 }
1877
1878 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1879 {
1880     if (m_childView)
1881     {
1882         bool ans = event.CanVeto()
1883                     ? m_childView->Close(false) // false means don't delete associated window
1884                     : true; // Must delete.
1885
1886         if (ans)
1887         {
1888             m_childView->Activate(false);
1889             delete m_childView;
1890             m_childView = (wxView *) NULL;
1891             m_childDocument = (wxDocument *) NULL;
1892
1893             this->Destroy();
1894         }
1895         else
1896             event.Veto();
1897     }
1898     else
1899         event.Veto();
1900 }
1901
1902 // ----------------------------------------------------------------------------
1903 // Default parent frame
1904 // ----------------------------------------------------------------------------
1905
1906 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1907     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1908     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1909     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1910 END_EVENT_TABLE()
1911
1912 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1913                                    wxFrame *frame,
1914                                    wxWindowID id,
1915                                    const wxString& title,
1916                                    const wxPoint& pos,
1917                                    const wxSize& size,
1918                                    long style,
1919                                    const wxString& name)
1920                 : wxFrame(frame, id, title, pos, size, style, name)
1921 {
1922     m_docManager = manager;
1923 }
1924
1925 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1926 {
1927     Close();
1928 }
1929
1930 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1931 {
1932     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1933     wxString filename(m_docManager->GetHistoryFile(n));
1934     if ( !filename.empty() )
1935     {
1936         // verify that the file exists before doing anything else
1937         if ( wxFile::Exists(filename) )
1938         {
1939             // try to open it
1940             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
1941             {
1942                 // remove the file from the MRU list. The user should already be notified.
1943                 m_docManager->RemoveFileFromHistory(n);
1944
1945                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
1946                        filename.c_str());
1947             }
1948         }
1949         else
1950         {
1951             // remove the bogus filename from the MRU list and notify the user
1952             // about it
1953             m_docManager->RemoveFileFromHistory(n);
1954
1955             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1956                        filename.c_str());
1957         }
1958     }
1959 }
1960
1961 // Extend event processing to search the view's event table
1962 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1963 {
1964     // Try the document manager, then do default processing
1965     if (!m_docManager || !m_docManager->ProcessEvent(event))
1966         return wxEvtHandler::ProcessEvent(event);
1967     else
1968         return true;
1969 }
1970
1971 // Define the behaviour for the frame closing
1972 // - must delete all frames except for the main one.
1973 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1974 {
1975     if (m_docManager->Clear(!event.CanVeto()))
1976     {
1977         this->Destroy();
1978     }
1979     else
1980         event.Veto();
1981 }
1982
1983 #if wxUSE_PRINTING_ARCHITECTURE
1984
1985 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1986              : wxPrintout(title)
1987 {
1988     m_printoutView = view;
1989 }
1990
1991 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1992 {
1993     wxDC *dc = GetDC();
1994
1995     // Get the logical pixels per inch of screen and printer
1996     int ppiScreenX, ppiScreenY;
1997     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1998     wxUnusedVar(ppiScreenY);
1999     int ppiPrinterX, ppiPrinterY;
2000     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
2001     wxUnusedVar(ppiPrinterY);
2002
2003     // This scales the DC so that the printout roughly represents the
2004     // the screen scaling. The text point size _should_ be the right size
2005     // but in fact is too small for some reason. This is a detail that will
2006     // need to be addressed at some point but can be fudged for the
2007     // moment.
2008     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2009
2010     // Now we have to check in case our real page size is reduced
2011     // (e.g. because we're drawing to a print preview memory DC)
2012     int pageWidth, pageHeight;
2013     int w, h;
2014     dc->GetSize(&w, &h);
2015     GetPageSizePixels(&pageWidth, &pageHeight);
2016     wxUnusedVar(pageHeight);
2017
2018     // If printer pageWidth == current DC width, then this doesn't
2019     // change. But w might be the preview bitmap width, so scale down.
2020     float overallScale = scale * (float)(w/(float)pageWidth);
2021     dc->SetUserScale(overallScale, overallScale);
2022
2023     if (m_printoutView)
2024     {
2025         m_printoutView->OnDraw(dc);
2026     }
2027     return true;
2028 }
2029
2030 bool wxDocPrintout::HasPage(int pageNum)
2031 {
2032     return (pageNum == 1);
2033 }
2034
2035 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2036 {
2037     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2038         return false;
2039
2040     return true;
2041 }
2042
2043 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
2044 {
2045     *minPage = 1;
2046     *maxPage = 1;
2047     *selPageFrom = 1;
2048     *selPageTo = 1;
2049 }
2050
2051 #endif // wxUSE_PRINTING_ARCHITECTURE
2052
2053 // ----------------------------------------------------------------------------
2054 // File history processor
2055 // ----------------------------------------------------------------------------
2056
2057 static inline wxChar* MYcopystring(const wxString& s)
2058 {
2059     wxChar* copy = new wxChar[s.length() + 1];
2060     return wxStrcpy(copy, s.c_str());
2061 }
2062
2063 static inline wxChar* MYcopystring(const wxChar* s)
2064 {
2065     wxChar* copy = new wxChar[wxStrlen(s) + 1];
2066     return wxStrcpy(copy, s);
2067 }
2068
2069 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2070 {
2071     m_fileMaxFiles = maxFiles;
2072     m_idBase = idBase;
2073     m_fileHistoryN = 0;
2074     m_fileHistory = new wxChar *[m_fileMaxFiles];
2075 }
2076
2077 wxFileHistory::~wxFileHistory()
2078 {
2079     size_t i;
2080     for (i = 0; i < m_fileHistoryN; i++)
2081         delete[] m_fileHistory[i];
2082     delete[] m_fileHistory;
2083 }
2084
2085 // File history management
2086 void wxFileHistory::AddFileToHistory(const wxString& file)
2087 {
2088     size_t i;
2089
2090     // Check we don't already have this file
2091     for (i = 0; i < m_fileHistoryN; i++)
2092     {
2093 #if defined( __WXMSW__ ) // Add any other OSes with case insensitive file names
2094         wxString testString;
2095         if ( m_fileHistory[i] )
2096             testString = m_fileHistory[i];
2097         if ( m_fileHistory[i] && ( file.Lower() == testString.Lower() ) )
2098 #else
2099         if ( m_fileHistory[i] && ( file == m_fileHistory[i] ) )
2100 #endif
2101         {
2102             // we do have it, move it to the top of the history
2103             RemoveFileFromHistory (i);
2104             AddFileToHistory (file);
2105             return;
2106         }
2107     }
2108
2109     // if we already have a full history, delete the one at the end
2110     if ( m_fileMaxFiles == m_fileHistoryN )
2111     {
2112         RemoveFileFromHistory (m_fileHistoryN - 1);
2113         AddFileToHistory (file);
2114         return;
2115     }
2116
2117     // Add to the project file history:
2118     // Move existing files (if any) down so we can insert file at beginning.
2119     if (m_fileHistoryN < m_fileMaxFiles)
2120     {
2121         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2122         while (node)
2123         {
2124             wxMenu* menu = (wxMenu*) node->GetData();
2125             if ( m_fileHistoryN == 0 && menu->GetMenuItemCount() )
2126             {
2127                 menu->AppendSeparator();
2128             }
2129             menu->Append(m_idBase+m_fileHistoryN, _("[EMPTY]"));
2130             node = node->GetNext();
2131         }
2132         m_fileHistoryN ++;
2133     }
2134     // Shuffle filenames down
2135     for (i = (m_fileHistoryN-1); i > 0; i--)
2136     {
2137         m_fileHistory[i] = m_fileHistory[i-1];
2138     }
2139     m_fileHistory[0] = MYcopystring(file);
2140
2141     // this is the directory of the last opened file
2142     wxString pathCurrent;
2143     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2144     for (i = 0; i < m_fileHistoryN; i++)
2145     {
2146         if ( m_fileHistory[i] )
2147         {
2148             // if in same directory just show the filename; otherwise the full
2149             // path
2150             wxString pathInMenu, path, filename, ext;
2151             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2152             if ( path == pathCurrent )
2153             {
2154                 pathInMenu = filename;
2155                 if ( !ext.empty() )
2156                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2157             }
2158             else
2159             {
2160                 // absolute path; could also set relative path
2161                 pathInMenu = m_fileHistory[i];
2162             }
2163
2164             // we need to quote '&' characters which are used for mnemonics
2165             pathInMenu.Replace(_T("&"), _T("&&"));
2166             wxString buf;
2167             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2168             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2169             while (node)
2170             {
2171                 wxMenu* menu = (wxMenu*) node->GetData();
2172                 menu->SetLabel(m_idBase + i, buf);
2173                 node = node->GetNext();
2174             }
2175         }
2176     }
2177 }
2178
2179 void wxFileHistory::RemoveFileFromHistory(size_t i)
2180 {
2181     wxCHECK_RET( i < m_fileHistoryN,
2182                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2183
2184     // delete the element from the array (could use memmove() too...)
2185     delete [] m_fileHistory[i];
2186
2187     size_t j;
2188     for ( j = i; j < m_fileHistoryN - 1; j++ )
2189     {
2190         m_fileHistory[j] = m_fileHistory[j + 1];
2191     }
2192
2193     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2194     while ( node )
2195     {
2196          wxMenu* menu = (wxMenu*) node->GetData();
2197
2198          // shuffle filenames up
2199          wxString buf;
2200          for ( j = i; j < m_fileHistoryN - 1; j++ )
2201          {
2202              buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2203              menu->SetLabel(m_idBase + j, buf);
2204          }
2205
2206          node = node->GetNext();
2207
2208         // delete the last menu item which is unused now
2209         wxWindowID lastItemId = m_idBase + m_fileHistoryN - 1;
2210         if (menu->FindItem(lastItemId))
2211         {
2212             menu->Delete(lastItemId);
2213         }
2214
2215         // delete the last separator too if no more files are left
2216         if ( m_fileHistoryN == 1 )
2217         {
2218             wxMenuItemList::compatibility_iterator nodeLast = menu->GetMenuItems().GetLast();
2219             if ( nodeLast )
2220             {
2221                 wxMenuItem *menuItem = nodeLast->GetData();
2222                 if ( menuItem->IsSeparator() )
2223                 {
2224                     menu->Delete(menuItem);
2225                 }
2226                 //else: should we search backwards for the last separator?
2227             }
2228             //else: menu is empty somehow
2229         }
2230     }
2231
2232     m_fileHistoryN--;
2233 }
2234
2235 wxString wxFileHistory::GetHistoryFile(size_t i) const
2236 {
2237     wxString s;
2238     if ( i < m_fileHistoryN )
2239     {
2240         s = m_fileHistory[i];
2241     }
2242     else
2243     {
2244         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2245     }
2246
2247     return s;
2248 }
2249
2250 void wxFileHistory::UseMenu(wxMenu *menu)
2251 {
2252     if (!m_fileMenus.Member(menu))
2253         m_fileMenus.Append(menu);
2254 }
2255
2256 void wxFileHistory::RemoveMenu(wxMenu *menu)
2257 {
2258     m_fileMenus.DeleteObject(menu);
2259 }
2260
2261 #if wxUSE_CONFIG
2262 void wxFileHistory::Load(wxConfigBase& config)
2263 {
2264     m_fileHistoryN = 0;
2265     wxString buf;
2266     buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2267     wxString historyFile;
2268     while ((m_fileHistoryN < m_fileMaxFiles) && config.Read(buf, &historyFile) && (!historyFile.empty()))
2269     {
2270         m_fileHistory[m_fileHistoryN] = MYcopystring((const wxChar*) historyFile);
2271         m_fileHistoryN ++;
2272         buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2273         historyFile = wxEmptyString;
2274     }
2275     AddFilesToMenu();
2276 }
2277
2278 void wxFileHistory::Save(wxConfigBase& config)
2279 {
2280     size_t i;
2281     for (i = 0; i < m_fileMaxFiles; i++)
2282     {
2283         wxString buf;
2284         buf.Printf(wxT("file%d"), (int)i+1);
2285         if (i < m_fileHistoryN)
2286             config.Write(buf, wxString(m_fileHistory[i]));
2287         else
2288             config.Write(buf, wxEmptyString);
2289     }
2290 }
2291 #endif // wxUSE_CONFIG
2292
2293 void wxFileHistory::AddFilesToMenu()
2294 {
2295     if (m_fileHistoryN > 0)
2296     {
2297         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2298         while (node)
2299         {
2300             wxMenu* menu = (wxMenu*) node->GetData();
2301             if (menu->GetMenuItemCount())
2302             {
2303                 menu->AppendSeparator();
2304             }
2305
2306             size_t i;
2307             for (i = 0; i < m_fileHistoryN; i++)
2308             {
2309                 if (m_fileHistory[i])
2310                 {
2311                     wxString buf;
2312                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2313                     menu->Append(m_idBase+i, buf);
2314                 }
2315             }
2316             node = node->GetNext();
2317         }
2318     }
2319 }
2320
2321 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2322 {
2323     if (m_fileHistoryN > 0)
2324     {
2325         if (menu->GetMenuItemCount())
2326         {
2327             menu->AppendSeparator();
2328         }
2329
2330         size_t i;
2331         for (i = 0; i < m_fileHistoryN; i++)
2332         {
2333             if (m_fileHistory[i])
2334             {
2335                 wxString buf;
2336                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2337                 menu->Append(m_idBase+i, buf);
2338             }
2339         }
2340     }
2341 }
2342
2343 // ----------------------------------------------------------------------------
2344 // Permits compatibility with existing file formats and functions that
2345 // manipulate files directly
2346 // ----------------------------------------------------------------------------
2347
2348 #if wxUSE_STD_IOSTREAM
2349
2350 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2351 {
2352     wxFFile file(filename, _T("rb"));
2353     if ( !file.IsOpened() )
2354         return false;
2355
2356     char buf[4096];
2357
2358     size_t nRead;
2359     do
2360     {
2361         nRead = file.Read(buf, WXSIZEOF(buf));
2362         if ( file.Error() )
2363             return false;
2364
2365         stream.write(buf, nRead);
2366         if ( !stream )
2367             return false;
2368     }
2369     while ( !file.Eof() );
2370
2371     return true;
2372 }
2373
2374 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2375 {
2376     wxFFile file(filename, _T("wb"));
2377     if ( !file.IsOpened() )
2378         return false;
2379
2380     char buf[4096];
2381     do
2382     {
2383         stream.read(buf, WXSIZEOF(buf));
2384         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2385         {
2386             if ( !file.Write(buf, stream.gcount()) )
2387                 return false;
2388         }
2389     }
2390     while ( !stream.eof() );
2391
2392     return true;
2393 }
2394
2395 #else // !wxUSE_STD_IOSTREAM
2396
2397 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2398 {
2399     wxFFile file(filename, _T("rb"));
2400     if ( !file.IsOpened() )
2401         return false;
2402
2403     char buf[4096];
2404
2405     size_t nRead;
2406     do
2407     {
2408         nRead = file.Read(buf, WXSIZEOF(buf));
2409         if ( file.Error() )
2410             return false;
2411
2412         stream.Write(buf, nRead);
2413         if ( !stream )
2414             return false;
2415     }
2416     while ( !file.Eof() );
2417
2418     return true;
2419 }
2420
2421 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2422 {
2423     wxFFile file(filename, _T("wb"));
2424     if ( !file.IsOpened() )
2425         return false;
2426
2427     char buf[4096];
2428     do
2429     {
2430         stream.Read(buf, WXSIZEOF(buf));
2431
2432         const size_t nRead = stream.LastRead();
2433         if ( !nRead || !file.Write(buf, nRead) )
2434             return false;
2435     }
2436     while ( !stream.Eof() );
2437
2438     return true;
2439 }
2440
2441 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2442
2443 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
2444