src/common/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/docview.cpp
   3 // Purpose:     Document/view classes
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin
   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 #include "wx/docview.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/list.h"
  33     #include "wx/string.h"
  34     #include "wx/utils.h"
  35     #include "wx/app.h"
  36     #include "wx/dc.h"
  37     #include "wx/dialog.h"
  38     #include "wx/menu.h"
  39     #include "wx/filedlg.h"
  40     #include "wx/intl.h"
  41     #include "wx/log.h"
  42     #include "wx/msgdlg.h"
  43     #include "wx/mdi.h"
  44     #include "wx/choicdlg.h"
  45 #endif
  46
  47 #if wxUSE_PRINTING_ARCHITECTURE
  48     #include "wx/prntbase.h"
  49     #include "wx/printdlg.h"
  50 #endif
  51
  52 #include "wx/confbase.h"
  53 #include "wx/filename.h"
  54 #include "wx/file.h"
  55 #include "wx/ffile.h"
  56 #include "wx/cmdproc.h"
  57 #include "wx/tokenzr.h"
  58 #include "wx/filename.h"
  59 #include "wx/stdpaths.h"
  60 #include "wx/vector.h"
  61 #include "wx/scopedarray.h"
  62 #include "wx/scopedptr.h"
  63 #include "wx/except.h"
  64
  65 #if wxUSE_STD_IOSTREAM
  66     #include "wx/ioswrap.h"
  67     #include "wx/beforestd.h"
  68     #if wxUSE_IOSTREAMH
  69         #include <fstream.h>
  70     #else
  71         #include <fstream>
  72     #endif
  73     #include "wx/afterstd.h"
  74 #else
  75     #include "wx/wfstream.h"
  76 #endif
  77
  78 typedef wxVector<wxDocTemplate *> wxDocTemplates;
  79
  80 // ----------------------------------------------------------------------------
  81 // wxWidgets macros
  82 // ----------------------------------------------------------------------------
  83
  84 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  85 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  86 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  87 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  88 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  89 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  90
  91 #if wxUSE_PRINTING_ARCHITECTURE
  92     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  93 #endif
  94
  95 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  96
  97 // ============================================================================
  98 // implementation
  99 // ============================================================================
 100
 101 // ----------------------------------------------------------------------------
 102 // private helpers
 103 // ----------------------------------------------------------------------------
 104
 105 namespace
 106 {
 107
 108 wxString FindExtension(const wxString& path)
 109 {
 110     wxString ext;
 111     wxFileName::SplitPath(path, NULL, NULL, &ext);
 112
 113     // VZ: extensions are considered not case sensitive - is this really a good
 114     //     idea?
 115     return ext.MakeLower();
 116 }
 117
 118 // return the string used for the MRU list items in the menu
 119 //
 120 // NB: the index n is 0-based, as usual, but the strings start from 1
 121 wxString GetMRUEntryLabel(int n, const wxString& path)
 122 {
 123     // we need to quote '&' characters which are used for mnemonics
 124     wxString pathInMenu(path);
 125     pathInMenu.Replace("&", "&&");
 126
 127     return wxString::Format("&%d %s", n + 1, pathInMenu);
 128 }
 129
 130 } // anonymous namespace
 131
 132 // ----------------------------------------------------------------------------
 133 // Definition of wxDocument
 134 // ----------------------------------------------------------------------------
 135
 136 wxDocument::wxDocument(wxDocument *parent)
 137 {
 138     m_documentModified = false;
 139     m_documentParent = parent;
 140     m_documentTemplate = NULL;
 141     m_commandProcessor = NULL;
 142     m_savedYet = false;
 143 }
 144
 145 bool wxDocument::DeleteContents()
 146 {
 147     return true;
 148 }
 149
 150 wxDocument::~wxDocument()
 151 {
 152     DeleteContents();
 153
 154     delete m_commandProcessor;
 155
 156     if (GetDocumentManager())
 157         GetDocumentManager()->RemoveDocument(this);
 158
 159     // Not safe to do here, since it'll invoke virtual view functions
 160     // expecting to see valid derived objects: and by the time we get here,
 161     // we've called destructors higher up.
 162     //DeleteAllViews();
 163 }
 164
 165 bool wxDocument::Close()
 166 {
 167     if ( !OnSaveModified() )
 168         return false;
 169
 170     return OnCloseDocument();
 171 }
 172
 173 bool wxDocument::OnCloseDocument()
 174 {
 175     // Tell all views that we're about to close
 176     NotifyClosing();
 177     DeleteContents();
 178     Modify(false);
 179     return true;
 180 }
 181
 182 // Note that this implicitly deletes the document when the last view is
 183 // deleted.
 184 bool wxDocument::DeleteAllViews()
 185 {
 186     wxDocManager* manager = GetDocumentManager();
 187
 188     // first check if all views agree to be closed
 189     const wxList::iterator end = m_documentViews.end();
 190     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 191     {
 192         wxView *view = (wxView *)*i;
 193         if ( !view->Close() )
 194             return false;
 195     }
 196
 197     // all views agreed to close, now do close them
 198     if ( m_documentViews.empty() )
 199     {
 200         // normally the document would be implicitly deleted when the last view
 201         // is, but if don't have any views, do it here instead
 202         if ( manager && manager->GetDocuments().Member(this) )
 203             delete this;
 204     }
 205     else // have views
 206     {
 207         // as we delete elements we iterate over, don't use the usual "from
 208         // begin to end" loop
 209         for ( ;; )
 210         {
 211             wxView *view = (wxView *)*m_documentViews.begin();
 212
 213             bool isLastOne = m_documentViews.size() == 1;
 214
 215             // this always deletes the node implicitly and if this is the last
 216             // view also deletes this object itself (also implicitly, great),
 217             // so we can't test for m_documentViews.empty() after calling this!
 218             delete view;
 219
 220             if ( isLastOne )
 221                 break;
 222         }
 223     }
 224
 225     return true;
 226 }
 227
 228 wxView *wxDocument::GetFirstView() const
 229 {
 230     if ( m_documentViews.empty() )
 231         return NULL;
 232
 233     return static_cast<wxView *>(m_documentViews.GetFirst()->GetData());
 234 }
 235
 236 void wxDocument::Modify(bool mod)
 237 {
 238     if (mod != m_documentModified)
 239     {
 240         m_documentModified = mod;
 241
 242         // Allow views to append asterix to the title
 243         wxView* view = GetFirstView();
 244         if (view) view->OnChangeFilename();
 245     }
 246 }
 247
 248 wxDocManager *wxDocument::GetDocumentManager() const
 249 {
 250     return m_documentTemplate ? m_documentTemplate->GetDocumentManager() : NULL;
 251 }
 252
 253 bool wxDocument::OnNewDocument()
 254 {
 255     // notice that there is no need to neither reset nor even check the
 256     // modified flag here as the document itself is a new object (this is only
 257     // called from CreateDocument()) and so it shouldn't be saved anyhow even
 258     // if it is modified -- this could happen if the user code creates
 259     // documents pre-filled with some user-entered (and which hence must not be
 260     // lost) information
 261
 262     SetDocumentSaved(false);
 263
 264     const wxString name = GetDocumentManager()->MakeNewDocumentName();
 265     SetTitle(name);
 266     SetFilename(name, true);
 267
 268     return true;
 269 }
 270
 271 bool wxDocument::Save()
 272 {
 273     if ( AlreadySaved() )
 274         return true;
 275
 276     if ( m_documentFile.empty() || !m_savedYet )
 277         return SaveAs();
 278
 279     return OnSaveDocument(m_documentFile);
 280 }
 281
 282 bool wxDocument::SaveAs()
 283 {
 284     wxDocTemplate *docTemplate = GetDocumentTemplate();
 285     if (!docTemplate)
 286         return false;
 287
 288 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
 289     wxString filter = docTemplate->GetDescription() + wxT(" (") +
 290         docTemplate->GetFileFilter() + wxT(")|") +
 291         docTemplate->GetFileFilter();
 292
 293     // Now see if there are some other template with identical view and document
 294     // classes, whose filters may also be used.
 295     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 296     {
 297         wxList::compatibility_iterator
 298             node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
 299         while (node)
 300         {
 301             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 302
 303             if (t->IsVisible() && t != docTemplate &&
 304                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 305                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 306             {
 307                 // add a '|' to separate this filter from the previous one
 308                 if ( !filter.empty() )
 309                     filter << wxT('|');
 310
 311                 filter << t->GetDescription()
 312                        << wxT(" (") << t->GetFileFilter() << wxT(") |")
 313                        << t->GetFileFilter();
 314             }
 315
 316             node = node->GetNext();
 317         }
 318     }
 319 #else
 320     wxString filter = docTemplate->GetFileFilter() ;
 321 #endif
 322
 323     wxString defaultDir = docTemplate->GetDirectory();
 324     if ( defaultDir.empty() )
 325     {
 326         defaultDir = wxPathOnly(GetFilename());
 327         if ( defaultDir.empty() )
 328             defaultDir = GetDocumentManager()->GetLastDirectory();
 329     }
 330
 331     wxString fileName = wxFileSelector(_("Save As"),
 332             defaultDir,
 333             wxFileNameFromPath(GetFilename()),
 334             docTemplate->GetDefaultExtension(),
 335             filter,
 336             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 337             GetDocumentWindow());
 338
 339     if (fileName.empty())
 340         return false; // cancelled by user
 341
 342     wxString ext;
 343     wxFileName::SplitPath(fileName, NULL, NULL, &ext);
 344
 345     if (ext.empty())
 346     {
 347         fileName += wxT(".");
 348         fileName += docTemplate->GetDefaultExtension();
 349     }
 350
 351     // Files that were not saved correctly are not added to the FileHistory.
 352     if (!OnSaveDocument(fileName))
 353         return false;
 354
 355     SetTitle(wxFileNameFromPath(fileName));
 356     SetFilename(fileName, true);    // will call OnChangeFileName automatically
 357
 358    // A file that doesn't use the default extension of its document template
 359    // cannot be opened via the FileHistory, so we do not add it.
 360    if (docTemplate->FileMatchesTemplate(fileName))
 361    {
 362        GetDocumentManager()->AddFileToHistory(fileName);
 363    }
 364    //else: the user will probably not be able to open the file again, so we
 365    //      could warn about the wrong file-extension here
 366
 367    return true;
 368 }
 369
 370 bool wxDocument::OnSaveDocument(const wxString& file)
 371 {
 372     if ( !file )
 373         return false;
 374
 375     if ( !DoSaveDocument(file) )
 376         return false;
 377
 378     Modify(false);
 379     SetFilename(file);
 380     SetDocumentSaved(true);
 381 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
 382     wxFileName fn(file) ;
 383     fn.MacSetDefaultTypeAndCreator() ;
 384 #endif
 385     return true;
 386 }
 387
 388 bool wxDocument::OnOpenDocument(const wxString& file)
 389 {
 390     // notice that there is no need to check the modified flag here for the
 391     // reasons explained in OnNewDocument()
 392
 393     if ( !DoOpenDocument(file) )
 394         return false;
 395
 396     SetFilename(file, true);
 397
 398     // stretching the logic a little this does make sense because the document
 399     // had been saved into the file we just loaded it from, it just could have
 400     // happened during a previous program execution, it's just that the name of
 401     // this method is a bit unfortunate, it should probably have been called
 402     // HasAssociatedFileName()
 403     SetDocumentSaved(true);
 404
 405     UpdateAllViews();
 406
 407     return true;
 408 }
 409
 410 #if wxUSE_STD_IOSTREAM
 411 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 412 #else
 413 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 414 #endif
 415 {
 416     return stream;
 417 }
 418
 419 #if wxUSE_STD_IOSTREAM
 420 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 421 #else
 422 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 423 #endif
 424 {
 425     return stream;
 426 }
 427
 428 bool wxDocument::Revert()
 429 {
 430     return false;
 431 }
 432
 433
 434 // Get title, or filename if no title, else unnamed
 435 #if WXWIN_COMPATIBILITY_2_8
 436 bool wxDocument::GetPrintableName(wxString& buf) const
 437 {
 438     // this function can not only be overridden by the user code but also
 439     // called by it so we need to ensure that we return the same thing as
 440     // GetUserReadableName() but we can't call it because this would result in
 441     // an infinite recursion, hence we use the helper DoGetUserReadableName()
 442     buf = DoGetUserReadableName();
 443
 444     return true;
 445 }
 446 #endif // WXWIN_COMPATIBILITY_2_8
 447
 448 wxString wxDocument::GetUserReadableName() const
 449 {
 450 #if WXWIN_COMPATIBILITY_2_8
 451     // we need to call the old virtual function to ensure that the overridden
 452     // version of it is still called
 453     wxString name;
 454     if ( GetPrintableName(name) )
 455         return name;
 456 #endif // WXWIN_COMPATIBILITY_2_8
 457
 458     return DoGetUserReadableName();
 459 }
 460
 461 wxString wxDocument::DoGetUserReadableName() const
 462 {
 463     if ( !m_documentTitle.empty() )
 464         return m_documentTitle;
 465
 466     if ( !m_documentFile.empty() )
 467         return wxFileNameFromPath(m_documentFile);
 468
 469     return _("unnamed");
 470 }
 471
 472 wxWindow *wxDocument::GetDocumentWindow() const
 473 {
 474     wxView * const view = GetFirstView();
 475
 476     return view ? view->GetFrame() : wxTheApp->GetTopWindow();
 477 }
 478
 479 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 480 {
 481     return new wxCommandProcessor;
 482 }
 483
 484 // true if safe to close
 485 bool wxDocument::OnSaveModified()
 486 {
 487     if ( IsModified() )
 488     {
 489         switch ( wxMessageBox
 490                  (
 491                     wxString::Format
 492                     (
 493                      _("Do you want to save changes to %s?"),
 494                      GetUserReadableName()
 495                     ),
 496                     wxTheApp->GetAppDisplayName(),
 497                     wxYES_NO | wxCANCEL | wxICON_QUESTION | wxCENTRE
 498                  ) )
 499         {
 500             case wxNO:
 501                 Modify(false);
 502                 break;
 503
 504             case wxYES:
 505                 return Save();
 506
 507             case wxCANCEL:
 508                 return false;
 509         }
 510     }
 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     return GetDocumentTemplate()->CreateView(this, flags) != NULL;
 540 }
 541
 542 // Called after a view is added or removed.
 543 // The default implementation deletes the document if
 544 // there are no more views.
 545 void wxDocument::OnChangedViewList()
 546 {
 547     if ( m_documentViews.empty() && OnSaveModified() )
 548         delete this;
 549 }
 550
 551 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 552 {
 553     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 554     while (node)
 555     {
 556         wxView *view = (wxView *)node->GetData();
 557         if (view != sender)
 558             view->OnUpdate(sender, hint);
 559         node = node->GetNext();
 560     }
 561 }
 562
 563 void wxDocument::NotifyClosing()
 564 {
 565     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 566     while (node)
 567     {
 568         wxView *view = (wxView *)node->GetData();
 569         view->OnClosingDocument();
 570         node = node->GetNext();
 571     }
 572 }
 573
 574 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 575 {
 576     m_documentFile = filename;
 577     OnChangeFilename(notifyViews);
 578 }
 579
 580 void wxDocument::OnChangeFilename(bool notifyViews)
 581 {
 582     if ( notifyViews )
 583     {
 584         // Notify the views that the filename has changed
 585         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 586         while (node)
 587         {
 588             wxView *view = (wxView *)node->GetData();
 589             view->OnChangeFilename();
 590             node = node->GetNext();
 591         }
 592     }
 593 }
 594
 595 bool wxDocument::DoSaveDocument(const wxString& file)
 596 {
 597 #if wxUSE_STD_IOSTREAM
 598     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 599     if ( !store )
 600 #else
 601     wxFileOutputStream store(file);
 602     if ( store.GetLastError() != wxSTREAM_NO_ERROR )
 603 #endif
 604     {
 605         wxLogError(_("File \"%s\" could not be opened for writing."), file);
 606         return false;
 607     }
 608
 609     if (!SaveObject(store))
 610     {
 611         wxLogError(_("Failed to save document to the file \"%s\"."), file);
 612         return false;
 613     }
 614
 615     return true;
 616 }
 617
 618 bool wxDocument::DoOpenDocument(const wxString& file)
 619 {
 620 #if wxUSE_STD_IOSTREAM
 621     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 622     if ( !store )
 623 #else
 624     wxFileInputStream store(file);
 625     if (store.GetLastError() != wxSTREAM_NO_ERROR || !store.IsOk())
 626 #endif
 627     {
 628         wxLogError(_("File \"%s\" could not be opened for reading."), file);
 629         return false;
 630     }
 631
 632 #if wxUSE_STD_IOSTREAM
 633     LoadObject(store);
 634     if ( !store )
 635 #else
 636     int res = LoadObject(store).GetLastError();
 637     if ( res != wxSTREAM_NO_ERROR && res != wxSTREAM_EOF )
 638 #endif
 639     {
 640         wxLogError(_("Failed to read document from the file \"%s\"."), file);
 641         return false;
 642     }
 643
 644     return true;
 645 }
 646
 647
 648 // ----------------------------------------------------------------------------
 649 // Document view
 650 // ----------------------------------------------------------------------------
 651
 652 wxView::wxView()
 653 {
 654     m_viewDocument = NULL;
 655
 656     m_viewFrame = NULL;
 657
 658     m_docChildFrame = NULL;
 659 }
 660
 661 wxView::~wxView()
 662 {
 663     GetDocumentManager()->ActivateView(this, false);
 664
 665     // reset our frame view first, before removing it from the document as
 666     // SetView(NULL) is a simple call while RemoveView() may result in user
 667     // code being executed and this user code can, for example, show a message
 668     // box which would result in an activation event for m_docChildFrame and so
 669     // could reactivate the view being destroyed -- unless we reset it first
 670     if ( m_docChildFrame && m_docChildFrame->GetView() == this )
 671     {
 672         // prevent it from doing anything with us
 673         m_docChildFrame->SetView(NULL);
 674
 675         // it doesn't make sense to leave the frame alive if its associated
 676         // view doesn't exist any more so unconditionally close it as well
 677         //
 678         // notice that we only get here if m_docChildFrame is non-NULL in the
 679         // first place and it will be always NULL if we're deleted because our
 680         // frame was closed, so this only catches the case of directly deleting
 681         // the view, as it happens if its creation fails in wxDocTemplate::
 682         // CreateView() for example
 683         m_docChildFrame->GetWindow()->Destroy();
 684     }
 685
 686     if ( m_viewDocument )
 687         m_viewDocument->RemoveView(this);
 688 }
 689
 690 void wxView::SetDocChildFrame(wxDocChildFrameAnyBase *docChildFrame)
 691 {
 692     SetFrame(docChildFrame ? docChildFrame->GetWindow() : NULL);
 693     m_docChildFrame = docChildFrame;
 694 }
 695
 696 bool wxView::TryBefore(wxEvent& event)
 697 {
 698     wxDocument * const doc = GetDocument();
 699     return doc && doc->ProcessEventHere(event);
 700 }
 701
 702 void wxView::OnActivateView(bool WXUNUSED(activate),
 703                             wxView *WXUNUSED(activeView),
 704                             wxView *WXUNUSED(deactiveView))
 705 {
 706 }
 707
 708 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 709 {
 710     OnDraw(dc);
 711 }
 712
 713 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 714 {
 715 }
 716
 717 void wxView::OnChangeFilename()
 718 {
 719     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 720     // generic MDI implementation so use SetLabel rather than SetTitle.
 721     // It should cause SetTitle() for top level windows.
 722     wxWindow *win = GetFrame();
 723     if (!win) return;
 724
 725     wxDocument *doc = GetDocument();
 726     if (!doc) return;
 727
 728     wxString label = doc->GetUserReadableName();
 729     if (doc->IsModified())
 730     {
 731        label += "*";
 732     }
 733     win->SetLabel(label);
 734 }
 735
 736 void wxView::SetDocument(wxDocument *doc)
 737 {
 738     m_viewDocument = doc;
 739     if (doc)
 740         doc->AddView(this);
 741 }
 742
 743 bool wxView::Close(bool deleteWindow)
 744 {
 745     return OnClose(deleteWindow);
 746 }
 747
 748 void wxView::Activate(bool activate)
 749 {
 750     if (GetDocument() && GetDocumentManager())
 751     {
 752         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 753         GetDocumentManager()->ActivateView(this, activate);
 754     }
 755 }
 756
 757 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 758 {
 759     return GetDocument() ? GetDocument()->Close() : true;
 760 }
 761
 762 #if wxUSE_PRINTING_ARCHITECTURE
 763 wxPrintout *wxView::OnCreatePrintout()
 764 {
 765     return new wxDocPrintout(this);
 766 }
 767 #endif // wxUSE_PRINTING_ARCHITECTURE
 768
 769 // ----------------------------------------------------------------------------
 770 // wxDocTemplate
 771 // ----------------------------------------------------------------------------
 772
 773 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 774                              const wxString& descr,
 775                              const wxString& filter,
 776                              const wxString& dir,
 777                              const wxString& ext,
 778                              const wxString& docTypeName,
 779                              const wxString& viewTypeName,
 780                              wxClassInfo *docClassInfo,
 781                              wxClassInfo *viewClassInfo,
 782                              long flags)
 783 {
 784     m_documentManager = manager;
 785     m_description = descr;
 786     m_directory = dir;
 787     m_defaultExt = ext;
 788     m_fileFilter = filter;
 789     m_flags = flags;
 790     m_docTypeName = docTypeName;
 791     m_viewTypeName = viewTypeName;
 792     m_documentManager->AssociateTemplate(this);
 793
 794     m_docClassInfo = docClassInfo;
 795     m_viewClassInfo = viewClassInfo;
 796 }
 797
 798 wxDocTemplate::~wxDocTemplate()
 799 {
 800     m_documentManager->DisassociateTemplate(this);
 801 }
 802
 803 // Tries to dynamically construct an object of the right class.
 804 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 805 {
 806     // InitDocument() is supposed to delete the document object if its
 807     // initialization fails so don't use wxScopedPtr<> here: this is fragile
 808     // but unavoidable because the default implementation uses CreateView()
 809     // which may -- or not -- create a wxView and if it does create it and its
 810     // initialization fails then the view destructor will delete the document
 811     // (via RemoveView()) and as we can't distinguish between the two cases we
 812     // just have to assume that it always deletes it in case of failure
 813     wxDocument * const doc = DoCreateDocument();
 814
 815     return doc && InitDocument(doc, path, flags) ? doc : NULL;
 816 }
 817
 818 bool
 819 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 820 {
 821     doc->SetFilename(path);
 822     doc->SetDocumentTemplate(this);
 823     GetDocumentManager()->AddDocument(doc);
 824     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 825
 826     if (doc->OnCreate(path, flags))
 827         return true;
 828
 829     if (GetDocumentManager()->GetDocuments().Member(doc))
 830         doc->DeleteAllViews();
 831     return false;
 832 }
 833
 834 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 835 {
 836     wxScopedPtr<wxView> view(DoCreateView());
 837     if ( !view )
 838         return NULL;
 839
 840     view->SetDocument(doc);
 841     if ( !view->OnCreate(doc, flags) )
 842         return NULL;
 843
 844     return view.release();
 845 }
 846
 847 // The default (very primitive) format detection: check is the extension is
 848 // that of the template
 849 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 850 {
 851     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 852     wxString anything = wxT ("*");
 853     while (parser.HasMoreTokens())
 854     {
 855         wxString filter = parser.GetNextToken();
 856         wxString filterExt = FindExtension (filter);
 857         if ( filter.IsSameAs (anything)    ||
 858              filterExt.IsSameAs (anything) ||
 859              filterExt.IsSameAs (FindExtension (path)) )
 860             return true;
 861     }
 862     return GetDefaultExtension().IsSameAs(FindExtension(path));
 863 }
 864
 865 wxDocument *wxDocTemplate::DoCreateDocument()
 866 {
 867     if (!m_docClassInfo)
 868         return NULL;
 869
 870     return static_cast<wxDocument *>(m_docClassInfo->CreateObject());
 871 }
 872
 873 wxView *wxDocTemplate::DoCreateView()
 874 {
 875     if (!m_viewClassInfo)
 876         return NULL;
 877
 878     return static_cast<wxView *>(m_viewClassInfo->CreateObject());
 879 }
 880
 881 // ----------------------------------------------------------------------------
 882 // wxDocManager
 883 // ----------------------------------------------------------------------------
 884
 885 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 886     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 887     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 888     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 889     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 890     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 891     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 892     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 893     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 894     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 895
 896     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 897     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
 898     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
 899     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
 900     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 901     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 902     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
 903     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 904     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 905
 906 #if wxUSE_PRINTING_ARCHITECTURE
 907     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 908     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 909
 910     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
 911     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
 912 #endif
 913 END_EVENT_TABLE()
 914
 915 wxDocManager* wxDocManager::sm_docManager = NULL;
 916
 917 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 918 {
 919     wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
 920
 921     sm_docManager = this;
 922
 923     m_defaultDocumentNameCounter = 1;
 924     m_currentView = NULL;
 925     m_maxDocsOpen = INT_MAX;
 926     m_fileHistory = NULL;
 927     if ( initialize )
 928         Initialize();
 929 }
 930
 931 wxDocManager::~wxDocManager()
 932 {
 933     Clear();
 934     delete m_fileHistory;
 935     sm_docManager = NULL;
 936 }
 937
 938 // closes the specified document
 939 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 940 {
 941     if ( !doc->Close() && !force )
 942         return false;
 943
 944     // Implicitly deletes the document when
 945     // the last view is deleted
 946     doc->DeleteAllViews();
 947
 948     // Check we're really deleted
 949     if (m_docs.Member(doc))
 950         delete doc;
 951
 952     return true;
 953 }
 954
 955 bool wxDocManager::CloseDocuments(bool force)
 956 {
 957     wxList::compatibility_iterator node = m_docs.GetFirst();
 958     while (node)
 959     {
 960         wxDocument *doc = (wxDocument *)node->GetData();
 961         wxList::compatibility_iterator next = node->GetNext();
 962
 963         if (!CloseDocument(doc, force))
 964             return false;
 965
 966         // This assumes that documents are not connected in
 967         // any way, i.e. deleting one document does NOT
 968         // delete another.
 969         node = next;
 970     }
 971     return true;
 972 }
 973
 974 bool wxDocManager::Clear(bool force)
 975 {
 976     if (!CloseDocuments(force))
 977         return false;
 978
 979     m_currentView = NULL;
 980
 981     wxList::compatibility_iterator node = m_templates.GetFirst();
 982     while (node)
 983     {
 984         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 985         wxList::compatibility_iterator next = node->GetNext();
 986         delete templ;
 987         node = next;
 988     }
 989     return true;
 990 }
 991
 992 bool wxDocManager::Initialize()
 993 {
 994     m_fileHistory = OnCreateFileHistory();
 995     return true;
 996 }
 997
 998 wxString wxDocManager::GetLastDirectory() const
 999 {
1000     // if we haven't determined the last used directory yet, do it now
1001     if ( m_lastDirectory.empty() )
1002     {
1003         // we're going to modify m_lastDirectory in this const method, so do it
1004         // via non-const self pointer instead of const this one
1005         wxDocManager * const self = const_cast<wxDocManager *>(this);
1006
1007         // first try to reuse the directory of the most recently opened file:
1008         // this ensures that if the user opens a file, closes the program and
1009         // runs it again the "Open file" dialog will open in the directory of
1010         // the last file he used
1011         if ( m_fileHistory && m_fileHistory->GetCount() )
1012         {
1013             const wxString lastOpened = m_fileHistory->GetHistoryFile(0);
1014             const wxFileName fn(lastOpened);
1015             if ( fn.DirExists() )
1016             {
1017                 self->m_lastDirectory = fn.GetPath();
1018             }
1019             //else: should we try the next one?
1020         }
1021         //else: no history yet
1022
1023         // if we don't have any files in the history (yet?), use the
1024         // system-dependent default location for the document files
1025         if ( m_lastDirectory.empty() )
1026         {
1027             self->m_lastDirectory = wxStandardPaths::Get().GetAppDocumentsDir();
1028         }
1029     }
1030
1031     return m_lastDirectory;
1032 }
1033
1034 wxFileHistory *wxDocManager::OnCreateFileHistory()
1035 {
1036     return new wxFileHistory;
1037 }
1038
1039 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
1040 {
1041     wxDocument *doc = GetCurrentDocument();
1042     if (!doc)
1043         return;
1044     if (doc->Close())
1045     {
1046         doc->DeleteAllViews();
1047         if (m_docs.Member(doc))
1048             delete doc;
1049     }
1050 }
1051
1052 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
1053 {
1054     CloseDocuments(false);
1055 }
1056
1057 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
1058 {
1059     CreateNewDocument();
1060 }
1061
1062 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
1063 {
1064     if ( !CreateDocument("") )
1065     {
1066         OnOpenFileFailure();
1067     }
1068 }
1069
1070 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
1071 {
1072     wxDocument *doc = GetCurrentDocument();
1073     if (!doc)
1074         return;
1075     doc->Revert();
1076 }
1077
1078 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1079 {
1080     wxDocument *doc = GetCurrentDocument();
1081     if (!doc)
1082         return;
1083     doc->Save();
1084 }
1085
1086 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1087 {
1088     wxDocument *doc = GetCurrentDocument();
1089     if (!doc)
1090         return;
1091     doc->SaveAs();
1092 }
1093
1094 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1095 {
1096 #if wxUSE_PRINTING_ARCHITECTURE
1097     wxView *view = GetActiveView();
1098     if (!view)
1099         return;
1100
1101     wxPrintout *printout = view->OnCreatePrintout();
1102     if (printout)
1103     {
1104         wxPrinter printer;
1105         printer.Print(view->GetFrame(), printout, true);
1106
1107         delete printout;
1108     }
1109 #endif // wxUSE_PRINTING_ARCHITECTURE
1110 }
1111
1112 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1113 {
1114 #if wxUSE_PRINTING_ARCHITECTURE
1115     wxBusyCursor busy;
1116     wxView *view = GetActiveView();
1117     if (!view)
1118         return;
1119
1120     wxPrintout *printout = view->OnCreatePrintout();
1121     if (printout)
1122     {
1123         // Pass two printout objects: for preview, and possible printing.
1124         wxPrintPreviewBase *
1125             preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1126         if ( !preview->Ok() )
1127         {
1128             delete preview;
1129             wxLogError(_("Print preview creation failed."));
1130             return;
1131         }
1132
1133         wxPreviewFrame *
1134             frame = new wxPreviewFrame(preview, wxTheApp->GetTopWindow(),
1135                                        _("Print Preview"));
1136         frame->Centre(wxBOTH);
1137         frame->Initialize();
1138         frame->Show(true);
1139     }
1140 #endif // wxUSE_PRINTING_ARCHITECTURE
1141 }
1142
1143 void wxDocManager::OnUndo(wxCommandEvent& event)
1144 {
1145     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1146     if ( !cmdproc )
1147     {
1148         event.Skip();
1149         return;
1150     }
1151
1152     cmdproc->Undo();
1153 }
1154
1155 void wxDocManager::OnRedo(wxCommandEvent& event)
1156 {
1157     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1158     if ( !cmdproc )
1159     {
1160         event.Skip();
1161         return;
1162     }
1163
1164     cmdproc->Redo();
1165 }
1166
1167 // Handlers for UI update commands
1168
1169 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1170 {
1171     // CreateDocument() (which is called from OnFileOpen) may succeed
1172     // only when there is at least a template:
1173     event.Enable( GetTemplates().GetCount()>0 );
1174 }
1175
1176 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1177 {
1178     event.Enable( GetCurrentDocument() != NULL );
1179 }
1180
1181 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1182 {
1183     // CreateDocument() (which is called from OnFileNew) may succeed
1184     // only when there is at least a template:
1185     event.Enable( GetTemplates().GetCount()>0 );
1186 }
1187
1188 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1189 {
1190     wxDocument * const doc = GetCurrentDocument();
1191     event.Enable( doc && !doc->AlreadySaved() );
1192 }
1193
1194 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1195 {
1196     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1197     if ( !cmdproc )
1198     {
1199         event.Enable(false);
1200         return;
1201     }
1202
1203     event.Enable(cmdproc->CanUndo());
1204     cmdproc->SetMenuStrings();
1205 }
1206
1207 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1208 {
1209     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1210     if ( !cmdproc )
1211     {
1212         event.Enable(false);
1213         return;
1214     }
1215
1216     event.Enable(cmdproc->CanRedo());
1217     cmdproc->SetMenuStrings();
1218 }
1219
1220 wxView *wxDocManager::GetActiveView() const
1221 {
1222     wxView *view = GetCurrentView();
1223
1224     if ( !view && !m_docs.empty() )
1225     {
1226         // if we have exactly one document, consider its view to be the current
1227         // one
1228         //
1229         // VZ: I'm not exactly sure why is this needed but this is how this
1230         //     code used to behave before the bug #9518 was fixed and it seems
1231         //     safer to preserve the old logic
1232         wxList::compatibility_iterator node = m_docs.GetFirst();
1233         if ( !node->GetNext() )
1234         {
1235             wxDocument *doc = static_cast<wxDocument *>(node->GetData());
1236             view = doc->GetFirstView();
1237         }
1238         //else: we have more than one document
1239     }
1240
1241     return view;
1242 }
1243
1244 bool wxDocManager::TryBefore(wxEvent& event)
1245 {
1246     wxView * const view = GetActiveView();
1247     return view && view->ProcessEventHere(event);
1248 }
1249
1250 namespace
1251 {
1252
1253 // helper function: return only the visible templates
1254 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1255 {
1256     // select only the visible templates
1257     const size_t totalNumTemplates = allTemplates.GetCount();
1258     wxDocTemplates templates;
1259     if ( totalNumTemplates )
1260     {
1261         templates.reserve(totalNumTemplates);
1262
1263         for ( wxList::const_iterator i = allTemplates.begin(),
1264                                    end = allTemplates.end();
1265               i != end;
1266               ++i )
1267         {
1268             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1269             if ( temp->IsVisible() )
1270                 templates.push_back(temp);
1271         }
1272     }
1273
1274     return templates;
1275 }
1276
1277 } // anonymous namespace
1278
1279 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1280 {
1281     // this ought to be const but SelectDocumentType/Path() are not
1282     // const-correct and can't be changed as, being virtual, this risks
1283     // breaking user code overriding them
1284     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1285     const size_t numTemplates = templates.size();
1286     if ( !numTemplates )
1287     {
1288         // no templates can be used, can't create document
1289         return NULL;
1290     }
1291
1292
1293     // normally user should select the template to use but wxDOC_SILENT flag we
1294     // choose one ourselves
1295     wxString path = pathOrig;   // may be modified below
1296     wxDocTemplate *temp;
1297     if ( flags & wxDOC_SILENT )
1298     {
1299         wxASSERT_MSG( !path.empty(),
1300                       "using empty path with wxDOC_SILENT doesn't make sense" );
1301
1302         temp = FindTemplateForPath(path);
1303         if ( !temp )
1304         {
1305             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1306                          path);
1307         }
1308     }
1309     else // not silent, ask the user
1310     {
1311         // for the new file we need just the template, for an existing one we
1312         // need the template and the path, unless it's already specified
1313         if ( (flags & wxDOC_NEW) || !path.empty() )
1314             temp = SelectDocumentType(&templates[0], numTemplates);
1315         else
1316             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1317     }
1318
1319     if ( !temp )
1320         return NULL;
1321
1322     // check whether the document with this path is already opened
1323     if ( !path.empty() )
1324     {
1325         const wxFileName fn(path);
1326         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1327         {
1328             wxDocument * const doc = (wxDocument*)*i;
1329
1330             if ( fn == doc->GetFilename() )
1331             {
1332                 // file already open, just activate it and return
1333                 if ( doc->GetFirstView() )
1334                 {
1335                     ActivateView(doc->GetFirstView());
1336                     if ( doc->GetDocumentWindow() )
1337                         doc->GetDocumentWindow()->SetFocus();
1338                     return doc;
1339                 }
1340             }
1341         }
1342     }
1343
1344
1345     // no, we need to create a new document
1346
1347
1348     // if we've reached the max number of docs, close the first one.
1349     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1350     {
1351         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1352         {
1353             // can't open the new document if closing the old one failed
1354             return NULL;
1355         }
1356     }
1357
1358
1359     // do create and initialize the new document finally
1360     wxDocument * const docNew = temp->CreateDocument(path, flags);
1361     if ( !docNew )
1362         return NULL;
1363
1364     docNew->SetDocumentName(temp->GetDocumentName());
1365     docNew->SetDocumentTemplate(temp);
1366
1367     wxTRY
1368     {
1369         // call the appropriate function depending on whether we're creating a
1370         // new file or opening an existing one
1371         if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1372                                  : docNew->OnOpenDocument(path)) )
1373         {
1374             docNew->DeleteAllViews();
1375             return NULL;
1376         }
1377     }
1378     wxCATCH_ALL( docNew->DeleteAllViews(); throw; )
1379
1380     // add the successfully opened file to MRU, but only if we're going to be
1381     // able to reopen it successfully later which requires the template for
1382     // this document to be retrievable from the file extension
1383     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1384         AddFileToHistory(path);
1385
1386     return docNew;
1387 }
1388
1389 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1390 {
1391     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1392     const size_t numTemplates = templates.size();
1393
1394     if ( numTemplates == 0 )
1395         return NULL;
1396
1397     wxDocTemplate * const
1398     temp = numTemplates == 1 ? templates[0]
1399                              : SelectViewType(&templates[0], numTemplates);
1400
1401     if ( !temp )
1402         return NULL;
1403
1404     wxView *view = temp->CreateView(doc, flags);
1405     if ( view )
1406         view->SetViewName(temp->GetViewName());
1407     return view;
1408 }
1409
1410 // Not yet implemented
1411 void
1412 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1413 {
1414 }
1415
1416 // Not yet implemented
1417 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1418 {
1419     return false;
1420 }
1421
1422 wxDocument *wxDocManager::GetCurrentDocument() const
1423 {
1424     wxView * const view = GetActiveView();
1425     return view ? view->GetDocument() : NULL;
1426 }
1427
1428 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1429 {
1430     wxDocument * const doc = GetCurrentDocument();
1431     return doc ? doc->GetCommandProcessor() : NULL;
1432 }
1433
1434 // Make a default name for a new document
1435 #if WXWIN_COMPATIBILITY_2_8
1436 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1437 {
1438     // we consider that this function can only be overridden by the user code,
1439     // not called by it as it only makes sense to call it internally, so we
1440     // don't bother to return anything from here
1441     return false;
1442 }
1443 #endif // WXWIN_COMPATIBILITY_2_8
1444
1445 wxString wxDocManager::MakeNewDocumentName()
1446 {
1447     wxString name;
1448
1449 #if WXWIN_COMPATIBILITY_2_8
1450     if ( !MakeDefaultName(name) )
1451 #endif // WXWIN_COMPATIBILITY_2_8
1452     {
1453         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1454         m_defaultDocumentNameCounter++;
1455     }
1456
1457     return name;
1458 }
1459
1460 // Make a frame title (override this to do something different)
1461 // If docName is empty, a document is not currently active.
1462 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1463 {
1464     wxString appName = wxTheApp->GetAppDisplayName();
1465     wxString title;
1466     if (!doc)
1467         title = appName;
1468     else
1469     {
1470         wxString docName = doc->GetUserReadableName();
1471         title = docName + wxString(_(" - ")) + appName;
1472     }
1473     return title;
1474 }
1475
1476
1477 // Not yet implemented
1478 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1479 {
1480     return NULL;
1481 }
1482
1483 // File history management
1484 void wxDocManager::AddFileToHistory(const wxString& file)
1485 {
1486     if (m_fileHistory)
1487         m_fileHistory->AddFileToHistory(file);
1488 }
1489
1490 void wxDocManager::RemoveFileFromHistory(size_t i)
1491 {
1492     if (m_fileHistory)
1493         m_fileHistory->RemoveFileFromHistory(i);
1494 }
1495
1496 wxString wxDocManager::GetHistoryFile(size_t i) const
1497 {
1498     wxString histFile;
1499
1500     if (m_fileHistory)
1501         histFile = m_fileHistory->GetHistoryFile(i);
1502
1503     return histFile;
1504 }
1505
1506 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1507 {
1508     if (m_fileHistory)
1509         m_fileHistory->UseMenu(menu);
1510 }
1511
1512 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1513 {
1514     if (m_fileHistory)
1515         m_fileHistory->RemoveMenu(menu);
1516 }
1517
1518 #if wxUSE_CONFIG
1519 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1520 {
1521     if (m_fileHistory)
1522         m_fileHistory->Load(config);
1523 }
1524
1525 void wxDocManager::FileHistorySave(wxConfigBase& config)
1526 {
1527     if (m_fileHistory)
1528         m_fileHistory->Save(config);
1529 }
1530 #endif
1531
1532 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1533 {
1534     if (m_fileHistory)
1535         m_fileHistory->AddFilesToMenu(menu);
1536 }
1537
1538 void wxDocManager::FileHistoryAddFilesToMenu()
1539 {
1540     if (m_fileHistory)
1541         m_fileHistory->AddFilesToMenu();
1542 }
1543
1544 size_t wxDocManager::GetHistoryFilesCount() const
1545 {
1546     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1547 }
1548
1549
1550 // Find out the document template via matching in the document file format
1551 // against that of the template
1552 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1553 {
1554     wxDocTemplate *theTemplate = NULL;
1555
1556     // Find the template which this extension corresponds to
1557     for (size_t i = 0; i < m_templates.GetCount(); i++)
1558     {
1559         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1560         if ( temp->FileMatchesTemplate(path) )
1561         {
1562             theTemplate = temp;
1563             break;
1564         }
1565     }
1566     return theTemplate;
1567 }
1568
1569 // Prompts user to open a file, using file specs in templates.
1570 // Must extend the file selector dialog or implement own; OR
1571 // match the extension to the template extension.
1572
1573 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1574                                                 int noTemplates,
1575                                                 wxString& path,
1576                                                 long WXUNUSED(flags),
1577                                                 bool WXUNUSED(save))
1578 {
1579 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1580     wxString descrBuf;
1581
1582     for (int i = 0; i < noTemplates; i++)
1583     {
1584         if (templates[i]->IsVisible())
1585         {
1586             // add a '|' to separate this filter from the previous one
1587             if ( !descrBuf.empty() )
1588                 descrBuf << wxT('|');
1589
1590             descrBuf << templates[i]->GetDescription()
1591                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1592                 << templates[i]->GetFileFilter();
1593         }
1594     }
1595 #else
1596     wxString descrBuf = wxT("*.*");
1597     wxUnusedVar(noTemplates);
1598 #endif
1599
1600     int FilterIndex = -1;
1601
1602     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1603                                         GetLastDirectory(),
1604                                         wxEmptyString,
1605                                         &FilterIndex,
1606                                         descrBuf);
1607
1608     wxDocTemplate *theTemplate = NULL;
1609     if (!pathTmp.empty())
1610     {
1611         if (!wxFileExists(pathTmp))
1612         {
1613             wxString msgTitle;
1614             if (!wxTheApp->GetAppDisplayName().empty())
1615                 msgTitle = wxTheApp->GetAppDisplayName();
1616             else
1617                 msgTitle = wxString(_("File error"));
1618
1619             wxMessageBox(_("Sorry, could not open this file."),
1620                          msgTitle,
1621                          wxOK | wxICON_EXCLAMATION | wxCENTRE);
1622
1623             path = wxEmptyString;
1624             return NULL;
1625         }
1626
1627         SetLastDirectory(wxPathOnly(pathTmp));
1628
1629         path = pathTmp;
1630
1631         // first choose the template using the extension, if this fails (i.e.
1632         // wxFileSelectorEx() didn't fill it), then use the path
1633         if ( FilterIndex != -1 )
1634             theTemplate = templates[FilterIndex];
1635         if ( !theTemplate )
1636             theTemplate = FindTemplateForPath(path);
1637         if ( !theTemplate )
1638         {
1639             // Since we do not add files with non-default extensions to the
1640             // file history this can only happen if the application changes the
1641             // allowed templates in runtime.
1642             wxMessageBox(_("Sorry, the format for this file is unknown."),
1643                          _("Open File"),
1644                          wxOK | wxICON_EXCLAMATION | wxCENTRE);
1645         }
1646     }
1647     else
1648     {
1649         path.clear();
1650     }
1651
1652     return theTemplate;
1653 }
1654
1655 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1656                                                 int noTemplates, bool sort)
1657 {
1658     wxArrayString strings;
1659     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1660     int i;
1661     int n = 0;
1662
1663     for (i = 0; i < noTemplates; i++)
1664     {
1665         if (templates[i]->IsVisible())
1666         {
1667             int j;
1668             bool want = true;
1669             for (j = 0; j < n; j++)
1670             {
1671                 //filter out NOT unique documents + view combinations
1672                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1673                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1674                    )
1675                     want = false;
1676             }
1677
1678             if ( want )
1679             {
1680                 strings.Add(templates[i]->m_description);
1681
1682                 data[n] = templates[i];
1683                 n ++;
1684             }
1685         }
1686     }  // for
1687
1688     if (sort)
1689     {
1690         strings.Sort(); // ascending sort
1691         // Yes, this will be slow, but template lists
1692         // are typically short.
1693         int j;
1694         n = strings.Count();
1695         for (i = 0; i < n; i++)
1696         {
1697             for (j = 0; j < noTemplates; j++)
1698             {
1699                 if (strings[i] == templates[j]->m_description)
1700                     data[i] = templates[j];
1701             }
1702         }
1703     }
1704
1705     wxDocTemplate *theTemplate;
1706
1707     switch ( n )
1708     {
1709         case 0:
1710             // no visible templates, hence nothing to choose from
1711             theTemplate = NULL;
1712             break;
1713
1714         case 1:
1715             // don't propose the user to choose if he has no choice
1716             theTemplate = data[0];
1717             break;
1718
1719         default:
1720             // propose the user to choose one of several
1721             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1722                           (
1723                             _("Select a document template"),
1724                             _("Templates"),
1725                             strings,
1726                             (void **)data.get()
1727                           );
1728     }
1729
1730     return theTemplate;
1731 }
1732
1733 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1734                                             int noTemplates, bool sort)
1735 {
1736     wxArrayString strings;
1737     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1738     int i;
1739     int n = 0;
1740
1741     for (i = 0; i < noTemplates; i++)
1742     {
1743         wxDocTemplate *templ = templates[i];
1744         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1745         {
1746             int j;
1747             bool want = true;
1748             for (j = 0; j < n; j++)
1749             {
1750                 //filter out NOT unique views
1751                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1752                     want = false;
1753             }
1754
1755             if ( want )
1756             {
1757                 strings.Add(templ->m_viewTypeName);
1758                 data[n] = templ;
1759                 n ++;
1760             }
1761         }
1762     }
1763
1764     if (sort)
1765     {
1766         strings.Sort(); // ascending sort
1767         // Yes, this will be slow, but template lists
1768         // are typically short.
1769         int j;
1770         n = strings.Count();
1771         for (i = 0; i < n; i++)
1772         {
1773             for (j = 0; j < noTemplates; j++)
1774             {
1775                 if (strings[i] == templates[j]->m_viewTypeName)
1776                     data[i] = templates[j];
1777             }
1778         }
1779     }
1780
1781     wxDocTemplate *theTemplate;
1782
1783     // the same logic as above
1784     switch ( n )
1785     {
1786         case 0:
1787             theTemplate = NULL;
1788             break;
1789
1790         case 1:
1791             theTemplate = data[0];
1792             break;
1793
1794         default:
1795             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1796                           (
1797                             _("Select a document view"),
1798                             _("Views"),
1799                             strings,
1800                             (void **)data.get()
1801                           );
1802
1803     }
1804
1805     return theTemplate;
1806 }
1807
1808 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1809 {
1810     if (!m_templates.Member(temp))
1811         m_templates.Append(temp);
1812 }
1813
1814 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1815 {
1816     m_templates.DeleteObject(temp);
1817 }
1818
1819 // Add and remove a document from the manager's list
1820 void wxDocManager::AddDocument(wxDocument *doc)
1821 {
1822     if (!m_docs.Member(doc))
1823         m_docs.Append(doc);
1824 }
1825
1826 void wxDocManager::RemoveDocument(wxDocument *doc)
1827 {
1828     m_docs.DeleteObject(doc);
1829 }
1830
1831 // Views or windows should inform the document manager
1832 // when a view is going in or out of focus
1833 void wxDocManager::ActivateView(wxView *view, bool activate)
1834 {
1835     if ( activate )
1836     {
1837         m_currentView = view;
1838     }
1839     else // deactivate
1840     {
1841         if ( m_currentView == view )
1842         {
1843             // don't keep stale pointer
1844             m_currentView = NULL;
1845         }
1846     }
1847 }
1848
1849 // ----------------------------------------------------------------------------
1850 // wxDocChildFrameAnyBase
1851 // ----------------------------------------------------------------------------
1852
1853 bool wxDocChildFrameAnyBase::CloseView(wxCloseEvent& event)
1854 {
1855     if ( m_childView )
1856     {
1857         if ( event.CanVeto() && !m_childView->Close(false) )
1858         {
1859             event.Veto();
1860             return false;
1861         }
1862
1863         m_childView->Activate(false);
1864
1865         // it is important to reset m_childView frame pointer to NULL before
1866         // deleting it because while normally it is the frame which deletes the
1867         // view when it's closed, the view also closes the frame if it is
1868         // deleted directly not by us as indicated by its doc child frame
1869         // pointer still being set
1870         m_childView->SetDocChildFrame(NULL);
1871         delete m_childView;
1872         m_childView = NULL;
1873     }
1874
1875     m_childDocument = NULL;
1876
1877     return true;
1878 }
1879
1880 // ----------------------------------------------------------------------------
1881 // Default parent frame
1882 // ----------------------------------------------------------------------------
1883
1884 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1885     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1886     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1887     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1888 END_EVENT_TABLE()
1889
1890 wxDocParentFrame::wxDocParentFrame()
1891 {
1892     m_docManager = NULL;
1893 }
1894
1895 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1896                                    wxFrame *frame,
1897                                    wxWindowID id,
1898                                    const wxString& title,
1899                                    const wxPoint& pos,
1900                                    const wxSize& size,
1901                                    long style,
1902                                    const wxString& name)
1903                 : wxFrame(frame, id, title, pos, size, style, name)
1904 {
1905     m_docManager = manager;
1906 }
1907
1908 bool wxDocParentFrame::Create(wxDocManager *manager,
1909                               wxFrame *frame,
1910                               wxWindowID id,
1911                               const wxString& title,
1912                               const wxPoint& pos,
1913                               const wxSize& size,
1914                               long style,
1915                               const wxString& name)
1916 {
1917     m_docManager = manager;
1918     return base_type::Create(frame, id, title, pos, size, style, name);
1919 }
1920
1921 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1922 {
1923     Close();
1924 }
1925
1926 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1927 {
1928     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1929     wxString filename(m_docManager->GetHistoryFile(n));
1930     if ( filename.empty() )
1931         return;
1932
1933     wxString errMsg; // must contain exactly one "%s" if non-empty
1934     if ( wxFile::Exists(filename) )
1935     {
1936         // try to open it
1937         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1938             return;
1939
1940         errMsg = _("The file '%s' couldn't be opened.");
1941     }
1942     else // file doesn't exist
1943     {
1944         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1945     }
1946
1947
1948     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1949
1950     // remove the file which we can't open from the MRU list
1951     m_docManager->RemoveFileFromHistory(n);
1952
1953     // and tell the user about it
1954     wxLogError(errMsg + '\n' +
1955                _("It has been removed from the most recently used files list."),
1956                filename);
1957 }
1958
1959 // Extend event processing to search the view's event table
1960 bool wxDocParentFrame::TryBefore(wxEvent& event)
1961 {
1962     if ( m_docManager && m_docManager->ProcessEventHere(event) )
1963         return true;
1964
1965     return wxFrame::TryBefore(event);
1966 }
1967
1968 // Define the behaviour for the frame closing
1969 // - must delete all frames except for the main one.
1970 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1971 {
1972     if (m_docManager->Clear(!event.CanVeto()))
1973     {
1974         Destroy();
1975     }
1976     else
1977         event.Veto();
1978 }
1979
1980 #if wxUSE_PRINTING_ARCHITECTURE
1981
1982 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1983              : wxPrintout(title)
1984 {
1985     m_printoutView = view;
1986 }
1987
1988 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1989 {
1990     wxDC *dc = GetDC();
1991
1992     // Get the logical pixels per inch of screen and printer
1993     int ppiScreenX, ppiScreenY;
1994     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1995     wxUnusedVar(ppiScreenY);
1996     int ppiPrinterX, ppiPrinterY;
1997     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1998     wxUnusedVar(ppiPrinterY);
1999
2000     // This scales the DC so that the printout roughly represents the
2001     // the screen scaling. The text point size _should_ be the right size
2002     // but in fact is too small for some reason. This is a detail that will
2003     // need to be addressed at some point but can be fudged for the
2004     // moment.
2005     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2006
2007     // Now we have to check in case our real page size is reduced
2008     // (e.g. because we're drawing to a print preview memory DC)
2009     int pageWidth, pageHeight;
2010     int w, h;
2011     dc->GetSize(&w, &h);
2012     GetPageSizePixels(&pageWidth, &pageHeight);
2013     wxUnusedVar(pageHeight);
2014
2015     // If printer pageWidth == current DC width, then this doesn't
2016     // change. But w might be the preview bitmap width, so scale down.
2017     float overallScale = scale * (float)(w/(float)pageWidth);
2018     dc->SetUserScale(overallScale, overallScale);
2019
2020     if (m_printoutView)
2021     {
2022         m_printoutView->OnDraw(dc);
2023     }
2024     return true;
2025 }
2026
2027 bool wxDocPrintout::HasPage(int pageNum)
2028 {
2029     return (pageNum == 1);
2030 }
2031
2032 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2033 {
2034     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2035         return false;
2036
2037     return true;
2038 }
2039
2040 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
2041                                 int *selPageFrom, int *selPageTo)
2042 {
2043     *minPage = 1;
2044     *maxPage = 1;
2045     *selPageFrom = 1;
2046     *selPageTo = 1;
2047 }
2048
2049 #endif // wxUSE_PRINTING_ARCHITECTURE
2050
2051 // ----------------------------------------------------------------------------
2052 // File history (a.k.a. MRU, most recently used, files list)
2053 // ----------------------------------------------------------------------------
2054
2055 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2056 {
2057     m_fileMaxFiles = maxFiles;
2058     m_idBase = idBase;
2059 }
2060
2061 void wxFileHistory::AddFileToHistory(const wxString& file)
2062 {
2063     // check if we don't already have this file
2064     const wxFileName fnNew(file);
2065     size_t i,
2066            numFiles = m_fileHistory.size();
2067     for ( i = 0; i < numFiles; i++ )
2068     {
2069         if ( fnNew == m_fileHistory[i] )
2070         {
2071             // we do have it, move it to the top of the history
2072             RemoveFileFromHistory(i);
2073             numFiles--;
2074             break;
2075         }
2076     }
2077
2078     // if we already have a full history, delete the one at the end
2079     if ( numFiles == m_fileMaxFiles )
2080     {
2081         RemoveFileFromHistory(--numFiles);
2082     }
2083
2084     // add a new menu item to all file menus (they will be updated below)
2085     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2086         node;
2087         node = node->GetNext() )
2088     {
2089         wxMenu * const menu = (wxMenu *)node->GetData();
2090
2091         if ( !numFiles && menu->GetMenuItemCount() )
2092             menu->AppendSeparator();
2093
2094         // label doesn't matter, it will be set below anyhow, but it can't
2095         // be empty (this is supposed to indicate a stock item)
2096         menu->Append(m_idBase + numFiles, " ");
2097     }
2098
2099     // insert the new file in the beginning of the file history
2100     m_fileHistory.insert(m_fileHistory.begin(), file);
2101     numFiles++;
2102
2103     // update the labels in all menus
2104     for ( i = 0; i < numFiles; i++ )
2105     {
2106         // if in same directory just show the filename; otherwise the full path
2107         const wxFileName fnOld(m_fileHistory[i]);
2108
2109         wxString pathInMenu;
2110         if ( fnOld.GetPath() == fnNew.GetPath() )
2111         {
2112             pathInMenu = fnOld.GetFullName();
2113         }
2114         else // file in different directory
2115         {
2116             // absolute path; could also set relative path
2117             pathInMenu = m_fileHistory[i];
2118         }
2119
2120         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2121               node;
2122               node = node->GetNext() )
2123         {
2124             wxMenu * const menu = (wxMenu *)node->GetData();
2125
2126             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2127         }
2128     }
2129 }
2130
2131 void wxFileHistory::RemoveFileFromHistory(size_t i)
2132 {
2133     size_t numFiles = m_fileHistory.size();
2134     wxCHECK_RET( i < numFiles,
2135                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2136
2137     // delete the element from the array
2138     m_fileHistory.RemoveAt(i);
2139     numFiles--;
2140
2141     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2142           node;
2143           node = node->GetNext() )
2144     {
2145         wxMenu * const menu = (wxMenu *) node->GetData();
2146
2147         // shift filenames up
2148         for ( size_t j = i; j < numFiles; j++ )
2149         {
2150             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2151         }
2152
2153         // delete the last menu item which is unused now
2154         const wxWindowID lastItemId = m_idBase + numFiles;
2155         if ( menu->FindItem(lastItemId) )
2156             menu->Delete(lastItemId);
2157
2158         // delete the last separator too if no more files are left
2159         if ( m_fileHistory.empty() )
2160         {
2161             const wxMenuItemList::compatibility_iterator
2162                 nodeLast = menu->GetMenuItems().GetLast();
2163             if ( nodeLast )
2164             {
2165                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2166                 if ( lastMenuItem->IsSeparator() )
2167                     menu->Delete(lastMenuItem);
2168             }
2169             //else: menu is empty somehow
2170         }
2171     }
2172 }
2173
2174 void wxFileHistory::UseMenu(wxMenu *menu)
2175 {
2176     if ( !m_fileMenus.Member(menu) )
2177         m_fileMenus.Append(menu);
2178 }
2179
2180 void wxFileHistory::RemoveMenu(wxMenu *menu)
2181 {
2182     m_fileMenus.DeleteObject(menu);
2183 }
2184
2185 #if wxUSE_CONFIG
2186 void wxFileHistory::Load(const wxConfigBase& config)
2187 {
2188     m_fileHistory.Clear();
2189
2190     wxString buf;
2191     buf.Printf(wxT("file%d"), 1);
2192
2193     wxString historyFile;
2194     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2195            config.Read(buf, &historyFile) && !historyFile.empty())
2196     {
2197         m_fileHistory.Add(historyFile);
2198
2199         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2200         historyFile = wxEmptyString;
2201     }
2202
2203     AddFilesToMenu();
2204 }
2205
2206 void wxFileHistory::Save(wxConfigBase& config)
2207 {
2208     size_t i;
2209     for (i = 0; i < m_fileMaxFiles; i++)
2210     {
2211         wxString buf;
2212         buf.Printf(wxT("file%d"), (int)i+1);
2213         if (i < m_fileHistory.GetCount())
2214             config.Write(buf, wxString(m_fileHistory[i]));
2215         else
2216             config.Write(buf, wxEmptyString);
2217     }
2218 }
2219 #endif // wxUSE_CONFIG
2220
2221 void wxFileHistory::AddFilesToMenu()
2222 {
2223     if ( m_fileHistory.empty() )
2224         return;
2225
2226     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2227           node;
2228           node = node->GetNext() )
2229     {
2230         AddFilesToMenu((wxMenu *) node->GetData());
2231     }
2232 }
2233
2234 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2235 {
2236     if ( m_fileHistory.empty() )
2237         return;
2238
2239     if ( menu->GetMenuItemCount() )
2240         menu->AppendSeparator();
2241
2242     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2243     {
2244         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2245     }
2246 }
2247
2248 // ----------------------------------------------------------------------------
2249 // Permits compatibility with existing file formats and functions that
2250 // manipulate files directly
2251 // ----------------------------------------------------------------------------
2252
2253 #if wxUSE_STD_IOSTREAM
2254
2255 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2256 {
2257 #if wxUSE_FFILE
2258     wxFFile file(filename, wxT("rb"));
2259 #elif wxUSE_FILE
2260     wxFile file(filename, wxFile::read);
2261 #endif
2262     if ( !file.IsOpened() )
2263         return false;
2264
2265     char buf[4096];
2266
2267     size_t nRead;
2268     do
2269     {
2270         nRead = file.Read(buf, WXSIZEOF(buf));
2271         if ( file.Error() )
2272             return false;
2273
2274         stream.write(buf, nRead);
2275         if ( !stream )
2276             return false;
2277     }
2278     while ( !file.Eof() );
2279
2280     return true;
2281 }
2282
2283 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2284 {
2285 #if wxUSE_FFILE
2286     wxFFile file(filename, wxT("wb"));
2287 #elif wxUSE_FILE
2288     wxFile file(filename, wxFile::write);
2289 #endif
2290     if ( !file.IsOpened() )
2291         return false;
2292
2293     char buf[4096];
2294     do
2295     {
2296         stream.read(buf, WXSIZEOF(buf));
2297         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2298         {
2299             if ( !file.Write(buf, stream.gcount()) )
2300                 return false;
2301         }
2302     }
2303     while ( !stream.eof() );
2304
2305     return true;
2306 }
2307
2308 #else // !wxUSE_STD_IOSTREAM
2309
2310 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2311 {
2312 #if wxUSE_FFILE
2313     wxFFile file(filename, wxT("rb"));
2314 #elif wxUSE_FILE
2315     wxFile file(filename, wxFile::read);
2316 #endif
2317     if ( !file.IsOpened() )
2318         return false;
2319
2320     char buf[4096];
2321
2322     size_t nRead;
2323     do
2324     {
2325         nRead = file.Read(buf, WXSIZEOF(buf));
2326         if ( file.Error() )
2327             return false;
2328
2329         stream.Write(buf, nRead);
2330         if ( !stream )
2331             return false;
2332     }
2333     while ( !file.Eof() );
2334
2335     return true;
2336 }
2337
2338 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2339 {
2340 #if wxUSE_FFILE
2341     wxFFile file(filename, wxT("wb"));
2342 #elif wxUSE_FILE
2343     wxFile file(filename, wxFile::write);
2344 #endif
2345     if ( !file.IsOpened() )
2346         return false;
2347
2348     char buf[4096];
2349     for ( ;; )
2350     {
2351         stream.Read(buf, WXSIZEOF(buf));
2352
2353         const size_t nRead = stream.LastRead();
2354         if ( !nRead )
2355         {
2356             if ( stream.Eof() )
2357                 break;
2358
2359             return false;
2360         }
2361
2362         if ( !file.Write(buf, nRead) )
2363             return false;
2364     }
2365
2366     return true;
2367 }
2368
2369 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2370
2371 #endif // wxUSE_DOC_VIEW_ARCHITECTURE