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