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 wxDocManager *wxDocument::GetDocumentManager() const
 237 {
 238     return m_documentTemplate ? m_documentTemplate->GetDocumentManager() : NULL;
 239 }
 240
 241 bool wxDocument::OnNewDocument()
 242 {
 243     // notice that there is no need to neither reset nor even check the
 244     // modified flag here as the document itself is a new object (this is only
 245     // called from CreateDocument()) and so it shouldn't be saved anyhow even
 246     // if it is modified -- this could happen if the user code creates
 247     // documents pre-filled with some user-entered (and which hence must not be
 248     // lost) information
 249
 250     SetDocumentSaved(false);
 251
 252     const wxString name = GetDocumentManager()->MakeNewDocumentName();
 253     SetTitle(name);
 254     SetFilename(name, true);
 255
 256     return true;
 257 }
 258
 259 bool wxDocument::Save()
 260 {
 261     if ( AlreadySaved() )
 262         return true;
 263
 264     if ( m_documentFile.empty() || !m_savedYet )
 265         return SaveAs();
 266
 267     return OnSaveDocument(m_documentFile);
 268 }
 269
 270 bool wxDocument::SaveAs()
 271 {
 272     wxDocTemplate *docTemplate = GetDocumentTemplate();
 273     if (!docTemplate)
 274         return false;
 275
 276 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
 277     wxString filter = docTemplate->GetDescription() + wxT(" (") +
 278         docTemplate->GetFileFilter() + wxT(")|") +
 279         docTemplate->GetFileFilter();
 280
 281     // Now see if there are some other template with identical view and document
 282     // classes, whose filters may also be used.
 283     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 284     {
 285         wxList::compatibility_iterator
 286             node = docTemplate->GetDocumentManager()->GetTemplates().GetFirst();
 287         while (node)
 288         {
 289             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 290
 291             if (t->IsVisible() && t != docTemplate &&
 292                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 293                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 294             {
 295                 // add a '|' to separate this filter from the previous one
 296                 if ( !filter.empty() )
 297                     filter << wxT('|');
 298
 299                 filter << t->GetDescription()
 300                        << wxT(" (") << t->GetFileFilter() << wxT(") |")
 301                        << t->GetFileFilter();
 302             }
 303
 304             node = node->GetNext();
 305         }
 306     }
 307 #else
 308     wxString filter = docTemplate->GetFileFilter() ;
 309 #endif
 310
 311     wxString defaultDir = docTemplate->GetDirectory();
 312     if ( defaultDir.empty() )
 313     {
 314         defaultDir = wxPathOnly(GetFilename());
 315         if ( defaultDir.empty() )
 316             defaultDir = GetDocumentManager()->GetLastDirectory();
 317     }
 318
 319     wxString fileName = wxFileSelector(_("Save As"),
 320             defaultDir,
 321             wxFileNameFromPath(GetFilename()),
 322             docTemplate->GetDefaultExtension(),
 323             filter,
 324             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 325             GetDocumentWindow());
 326
 327     if (fileName.empty())
 328         return false; // cancelled by user
 329
 330     wxString ext;
 331     wxFileName::SplitPath(fileName, NULL, NULL, &ext);
 332
 333     if (ext.empty())
 334     {
 335         fileName += wxT(".");
 336         fileName += docTemplate->GetDefaultExtension();
 337     }
 338
 339     // Files that were not saved correctly are not added to the FileHistory.
 340     if (!OnSaveDocument(fileName))
 341         return false;
 342
 343     SetTitle(wxFileNameFromPath(fileName));
 344     SetFilename(fileName, true);    // will call OnChangeFileName automatically
 345
 346    // A file that doesn't use the default extension of its document template
 347    // cannot be opened via the FileHistory, so we do not add it.
 348    if (docTemplate->FileMatchesTemplate(fileName))
 349    {
 350        GetDocumentManager()->AddFileToHistory(fileName);
 351    }
 352    //else: the user will probably not be able to open the file again, so we
 353    //      could warn about the wrong file-extension here
 354
 355    return true;
 356 }
 357
 358 bool wxDocument::OnSaveDocument(const wxString& file)
 359 {
 360     if ( !file )
 361         return false;
 362
 363     if ( !DoSaveDocument(file) )
 364         return false;
 365
 366     Modify(false);
 367     SetFilename(file);
 368     SetDocumentSaved(true);
 369 #if defined( __WXOSX_MAC__ ) && wxOSX_USE_CARBON
 370     wxFileName fn(file) ;
 371     fn.MacSetDefaultTypeAndCreator() ;
 372 #endif
 373     return true;
 374 }
 375
 376 bool wxDocument::OnOpenDocument(const wxString& file)
 377 {
 378     // notice that there is no need to check the modified flag here for the
 379     // reasons explained in OnNewDocument()
 380
 381     if ( !DoOpenDocument(file) )
 382         return false;
 383
 384     SetFilename(file, true);
 385
 386     // stretching the logic a little this does make sense because the document
 387     // had been saved into the file we just loaded it from, it just could have
 388     // happened during a previous program execution, it's just that the name of
 389     // this method is a bit unfortunate, it should probably have been called
 390     // HasAssociatedFileName()
 391     SetDocumentSaved(true);
 392
 393     UpdateAllViews();
 394
 395     return true;
 396 }
 397
 398 #if wxUSE_STD_IOSTREAM
 399 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 400 #else
 401 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 402 #endif
 403 {
 404     return stream;
 405 }
 406
 407 #if wxUSE_STD_IOSTREAM
 408 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 409 #else
 410 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 411 #endif
 412 {
 413     return stream;
 414 }
 415
 416 bool wxDocument::Revert()
 417 {
 418     return false;
 419 }
 420
 421
 422 // Get title, or filename if no title, else unnamed
 423 #if WXWIN_COMPATIBILITY_2_8
 424 bool wxDocument::GetPrintableName(wxString& buf) const
 425 {
 426     // this function can not only be overridden by the user code but also
 427     // called by it so we need to ensure that we return the same thing as
 428     // GetUserReadableName() but we can't call it because this would result in
 429     // an infinite recursion, hence we use the helper DoGetUserReadableName()
 430     buf = DoGetUserReadableName();
 431
 432     return true;
 433 }
 434 #endif // WXWIN_COMPATIBILITY_2_8
 435
 436 wxString wxDocument::GetUserReadableName() const
 437 {
 438 #if WXWIN_COMPATIBILITY_2_8
 439     // we need to call the old virtual function to ensure that the overridden
 440     // version of it is still called
 441     wxString name;
 442     if ( GetPrintableName(name) )
 443         return name;
 444 #endif // WXWIN_COMPATIBILITY_2_8
 445
 446     return DoGetUserReadableName();
 447 }
 448
 449 wxString wxDocument::DoGetUserReadableName() const
 450 {
 451     if ( !m_documentTitle.empty() )
 452         return m_documentTitle;
 453
 454     if ( !m_documentFile.empty() )
 455         return wxFileNameFromPath(m_documentFile);
 456
 457     return _("unnamed");
 458 }
 459
 460 wxWindow *wxDocument::GetDocumentWindow() const
 461 {
 462     wxView * const view = GetFirstView();
 463
 464     return view ? view->GetFrame() : wxTheApp->GetTopWindow();
 465 }
 466
 467 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 468 {
 469     return new wxCommandProcessor;
 470 }
 471
 472 // true if safe to close
 473 bool wxDocument::OnSaveModified()
 474 {
 475     if ( IsModified() )
 476     {
 477         switch ( wxMessageBox
 478                  (
 479                     wxString::Format
 480                     (
 481                      _("Do you want to save changes to %s?"),
 482                      GetUserReadableName()
 483                     ),
 484                     wxTheApp->GetAppDisplayName(),
 485                     wxYES_NO | wxCANCEL | wxICON_QUESTION | wxCENTRE
 486                  ) )
 487         {
 488             case wxNO:
 489                 Modify(false);
 490                 break;
 491
 492             case wxYES:
 493                 return Save();
 494
 495             case wxCANCEL:
 496                 return false;
 497         }
 498     }
 499
 500     return true;
 501 }
 502
 503 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 504 {
 505     return true;
 506 }
 507
 508 bool wxDocument::AddView(wxView *view)
 509 {
 510     if ( !m_documentViews.Member(view) )
 511     {
 512         m_documentViews.Append(view);
 513         OnChangedViewList();
 514     }
 515     return true;
 516 }
 517
 518 bool wxDocument::RemoveView(wxView *view)
 519 {
 520     (void)m_documentViews.DeleteObject(view);
 521     OnChangedViewList();
 522     return true;
 523 }
 524
 525 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 526 {
 527     return GetDocumentTemplate()->CreateView(this, flags) != NULL;
 528 }
 529
 530 // Called after a view is added or removed.
 531 // The default implementation deletes the document if
 532 // there are no more views.
 533 void wxDocument::OnChangedViewList()
 534 {
 535     if ( m_documentViews.empty() && OnSaveModified() )
 536         delete this;
 537 }
 538
 539 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 540 {
 541     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 542     while (node)
 543     {
 544         wxView *view = (wxView *)node->GetData();
 545         if (view != sender)
 546             view->OnUpdate(sender, hint);
 547         node = node->GetNext();
 548     }
 549 }
 550
 551 void wxDocument::NotifyClosing()
 552 {
 553     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 554     while (node)
 555     {
 556         wxView *view = (wxView *)node->GetData();
 557         view->OnClosingDocument();
 558         node = node->GetNext();
 559     }
 560 }
 561
 562 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 563 {
 564     m_documentFile = filename;
 565     OnChangeFilename(notifyViews);
 566 }
 567
 568 void wxDocument::OnChangeFilename(bool notifyViews)
 569 {
 570     if ( notifyViews )
 571     {
 572         // Notify the views that the filename has changed
 573         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 574         while (node)
 575         {
 576             wxView *view = (wxView *)node->GetData();
 577             view->OnChangeFilename();
 578             node = node->GetNext();
 579         }
 580     }
 581 }
 582
 583 bool wxDocument::DoSaveDocument(const wxString& file)
 584 {
 585 #if wxUSE_STD_IOSTREAM
 586     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 587     if ( !store )
 588 #else
 589     wxFileOutputStream store(file);
 590     if ( store.GetLastError() != wxSTREAM_NO_ERROR )
 591 #endif
 592     {
 593         wxLogError(_("File \"%s\" could not be opened for writing."), file);
 594         return false;
 595     }
 596
 597     if (!SaveObject(store))
 598     {
 599         wxLogError(_("Failed to save document to the file \"%s\"."), file);
 600         return false;
 601     }
 602
 603     return true;
 604 }
 605
 606 bool wxDocument::DoOpenDocument(const wxString& file)
 607 {
 608 #if wxUSE_STD_IOSTREAM
 609     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 610     if ( !store )
 611 #else
 612     wxFileInputStream store(file);
 613     if (store.GetLastError() != wxSTREAM_NO_ERROR || !store.IsOk())
 614 #endif
 615     {
 616         wxLogError(_("File \"%s\" could not be opened for reading."), file);
 617         return false;
 618     }
 619
 620 #if wxUSE_STD_IOSTREAM
 621     LoadObject(store);
 622     if ( !store )
 623 #else
 624     int res = LoadObject(store).GetLastError();
 625     if ( res != wxSTREAM_NO_ERROR && res != wxSTREAM_EOF )
 626 #endif
 627     {
 628         wxLogError(_("Failed to read document from the file \"%s\"."), file);
 629         return false;
 630     }
 631
 632     return true;
 633 }
 634
 635
 636 // ----------------------------------------------------------------------------
 637 // Document view
 638 // ----------------------------------------------------------------------------
 639
 640 wxView::wxView()
 641 {
 642     m_viewDocument = NULL;
 643
 644     m_viewFrame = NULL;
 645
 646     m_docChildFrame = NULL;
 647 }
 648
 649 wxView::~wxView()
 650 {
 651     GetDocumentManager()->ActivateView(this, false);
 652
 653     // reset our frame view first, before removing it from the document as
 654     // SetView(NULL) is a simple call while RemoveView() may result in user
 655     // code being executed and this user code can, for example, show a message
 656     // box which would result in an activation event for m_docChildFrame and so
 657     // could reactivate the view being destroyed -- unless we reset it first
 658     if ( m_docChildFrame && m_docChildFrame->GetView() == this )
 659     {
 660         // prevent it from doing anything with us
 661         m_docChildFrame->SetView(NULL);
 662
 663         // it doesn't make sense to leave the frame alive if its associated
 664         // view doesn't exist any more so unconditionally close it as well
 665         //
 666         // notice that we only get here if m_docChildFrame is non-NULL in the
 667         // first place and it will be always NULL if we're deleted because our
 668         // frame was closed, so this only catches the case of directly deleting
 669         // the view, as it happens if its creation fails in wxDocTemplate::
 670         // CreateView() for example
 671         m_docChildFrame->GetWindow()->Destroy();
 672     }
 673
 674     if ( m_viewDocument )
 675         m_viewDocument->RemoveView(this);
 676 }
 677
 678 void wxView::SetDocChildFrame(wxDocChildFrameAnyBase *docChildFrame)
 679 {
 680     SetFrame(docChildFrame ? docChildFrame->GetWindow() : NULL);
 681     m_docChildFrame = docChildFrame;
 682 }
 683
 684 bool wxView::TryBefore(wxEvent& event)
 685 {
 686     wxDocument * const doc = GetDocument();
 687     return doc && doc->ProcessEventHere(event);
 688 }
 689
 690 void wxView::OnActivateView(bool WXUNUSED(activate),
 691                             wxView *WXUNUSED(activeView),
 692                             wxView *WXUNUSED(deactiveView))
 693 {
 694 }
 695
 696 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 697 {
 698     OnDraw(dc);
 699 }
 700
 701 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 702 {
 703 }
 704
 705 void wxView::OnChangeFilename()
 706 {
 707     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 708     // generic MDI implementation so use SetLabel rather than SetTitle.
 709     // It should cause SetTitle() for top level windows.
 710     wxWindow *win = GetFrame();
 711     if (!win) return;
 712
 713     wxDocument *doc = GetDocument();
 714     if (!doc) return;
 715
 716     win->SetLabel(doc->GetUserReadableName());
 717 }
 718
 719 void wxView::SetDocument(wxDocument *doc)
 720 {
 721     m_viewDocument = doc;
 722     if (doc)
 723         doc->AddView(this);
 724 }
 725
 726 bool wxView::Close(bool deleteWindow)
 727 {
 728     return OnClose(deleteWindow);
 729 }
 730
 731 void wxView::Activate(bool activate)
 732 {
 733     if (GetDocument() && GetDocumentManager())
 734     {
 735         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 736         GetDocumentManager()->ActivateView(this, activate);
 737     }
 738 }
 739
 740 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 741 {
 742     return GetDocument() ? GetDocument()->Close() : true;
 743 }
 744
 745 #if wxUSE_PRINTING_ARCHITECTURE
 746 wxPrintout *wxView::OnCreatePrintout()
 747 {
 748     return new wxDocPrintout(this);
 749 }
 750 #endif // wxUSE_PRINTING_ARCHITECTURE
 751
 752 // ----------------------------------------------------------------------------
 753 // wxDocTemplate
 754 // ----------------------------------------------------------------------------
 755
 756 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 757                              const wxString& descr,
 758                              const wxString& filter,
 759                              const wxString& dir,
 760                              const wxString& ext,
 761                              const wxString& docTypeName,
 762                              const wxString& viewTypeName,
 763                              wxClassInfo *docClassInfo,
 764                              wxClassInfo *viewClassInfo,
 765                              long flags)
 766 {
 767     m_documentManager = manager;
 768     m_description = descr;
 769     m_directory = dir;
 770     m_defaultExt = ext;
 771     m_fileFilter = filter;
 772     m_flags = flags;
 773     m_docTypeName = docTypeName;
 774     m_viewTypeName = viewTypeName;
 775     m_documentManager->AssociateTemplate(this);
 776
 777     m_docClassInfo = docClassInfo;
 778     m_viewClassInfo = viewClassInfo;
 779 }
 780
 781 wxDocTemplate::~wxDocTemplate()
 782 {
 783     m_documentManager->DisassociateTemplate(this);
 784 }
 785
 786 // Tries to dynamically construct an object of the right class.
 787 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 788 {
 789     // InitDocument() is supposed to delete the document object if its
 790     // initialization fails so don't use wxScopedPtr<> here: this is fragile
 791     // but unavoidable because the default implementation uses CreateView()
 792     // which may -- or not -- create a wxView and if it does create it and its
 793     // initialization fails then the view destructor will delete the document
 794     // (via RemoveView()) and as we can't distinguish between the two cases we
 795     // just have to assume that it always deletes it in case of failure
 796     wxDocument * const doc = DoCreateDocument();
 797
 798     return doc && InitDocument(doc, path, flags) ? doc : NULL;
 799 }
 800
 801 bool
 802 wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 803 {
 804     doc->SetFilename(path);
 805     doc->SetDocumentTemplate(this);
 806     GetDocumentManager()->AddDocument(doc);
 807     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 808
 809     if (doc->OnCreate(path, flags))
 810         return true;
 811
 812     if (GetDocumentManager()->GetDocuments().Member(doc))
 813         doc->DeleteAllViews();
 814     return false;
 815 }
 816
 817 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 818 {
 819     wxScopedPtr<wxView> view(DoCreateView());
 820     if ( !view )
 821         return NULL;
 822
 823     view->SetDocument(doc);
 824     if ( !view->OnCreate(doc, flags) )
 825         return NULL;
 826
 827     return view.release();
 828 }
 829
 830 // The default (very primitive) format detection: check is the extension is
 831 // that of the template
 832 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 833 {
 834     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 835     wxString anything = wxT ("*");
 836     while (parser.HasMoreTokens())
 837     {
 838         wxString filter = parser.GetNextToken();
 839         wxString filterExt = FindExtension (filter);
 840         if ( filter.IsSameAs (anything)    ||
 841              filterExt.IsSameAs (anything) ||
 842              filterExt.IsSameAs (FindExtension (path)) )
 843             return true;
 844     }
 845     return GetDefaultExtension().IsSameAs(FindExtension(path));
 846 }
 847
 848 wxDocument *wxDocTemplate::DoCreateDocument()
 849 {
 850     if (!m_docClassInfo)
 851         return NULL;
 852
 853     return static_cast<wxDocument *>(m_docClassInfo->CreateObject());
 854 }
 855
 856 wxView *wxDocTemplate::DoCreateView()
 857 {
 858     if (!m_viewClassInfo)
 859         return NULL;
 860
 861     return static_cast<wxView *>(m_viewClassInfo->CreateObject());
 862 }
 863
 864 // ----------------------------------------------------------------------------
 865 // wxDocManager
 866 // ----------------------------------------------------------------------------
 867
 868 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 869     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 870     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 871     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 872     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 873     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 874     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 875     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 876     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 877     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 878
 879     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 880     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateDisableIfNoDoc)
 881     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateDisableIfNoDoc)
 882     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateDisableIfNoDoc)
 883     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 884     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 885     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateDisableIfNoDoc)
 886     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 887     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 888
 889 #if wxUSE_PRINTING_ARCHITECTURE
 890     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 891     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 892
 893     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdateDisableIfNoDoc)
 894     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdateDisableIfNoDoc)
 895 #endif
 896 END_EVENT_TABLE()
 897
 898 wxDocManager* wxDocManager::sm_docManager = NULL;
 899
 900 wxDocManager::wxDocManager(long WXUNUSED(flags), bool initialize)
 901 {
 902     wxASSERT_MSG( !sm_docManager, "multiple wxDocManagers not allowed" );
 903
 904     sm_docManager = this;
 905
 906     m_defaultDocumentNameCounter = 1;
 907     m_currentView = NULL;
 908     m_maxDocsOpen = INT_MAX;
 909     m_fileHistory = NULL;
 910     if ( initialize )
 911         Initialize();
 912 }
 913
 914 wxDocManager::~wxDocManager()
 915 {
 916     Clear();
 917     delete m_fileHistory;
 918     sm_docManager = NULL;
 919 }
 920
 921 // closes the specified document
 922 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 923 {
 924     if ( !doc->Close() && !force )
 925         return false;
 926
 927     // Implicitly deletes the document when
 928     // the last view is deleted
 929     doc->DeleteAllViews();
 930
 931     // Check we're really deleted
 932     if (m_docs.Member(doc))
 933         delete doc;
 934
 935     return true;
 936 }
 937
 938 bool wxDocManager::CloseDocuments(bool force)
 939 {
 940     wxList::compatibility_iterator node = m_docs.GetFirst();
 941     while (node)
 942     {
 943         wxDocument *doc = (wxDocument *)node->GetData();
 944         wxList::compatibility_iterator next = node->GetNext();
 945
 946         if (!CloseDocument(doc, force))
 947             return false;
 948
 949         // This assumes that documents are not connected in
 950         // any way, i.e. deleting one document does NOT
 951         // delete another.
 952         node = next;
 953     }
 954     return true;
 955 }
 956
 957 bool wxDocManager::Clear(bool force)
 958 {
 959     if (!CloseDocuments(force))
 960         return false;
 961
 962     m_currentView = NULL;
 963
 964     wxList::compatibility_iterator node = m_templates.GetFirst();
 965     while (node)
 966     {
 967         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 968         wxList::compatibility_iterator next = node->GetNext();
 969         delete templ;
 970         node = next;
 971     }
 972     return true;
 973 }
 974
 975 bool wxDocManager::Initialize()
 976 {
 977     m_fileHistory = OnCreateFileHistory();
 978     return true;
 979 }
 980
 981 wxString wxDocManager::GetLastDirectory() const
 982 {
 983     // if we haven't determined the last used directory yet, do it now
 984     if ( m_lastDirectory.empty() )
 985     {
 986         // we're going to modify m_lastDirectory in this const method, so do it
 987         // via non-const self pointer instead of const this one
 988         wxDocManager * const self = const_cast<wxDocManager *>(this);
 989
 990         // first try to reuse the directory of the most recently opened file:
 991         // this ensures that if the user opens a file, closes the program and
 992         // runs it again the "Open file" dialog will open in the directory of
 993         // the last file he used
 994         if ( m_fileHistory && m_fileHistory->GetCount() )
 995         {
 996             const wxString lastOpened = m_fileHistory->GetHistoryFile(0);
 997             const wxFileName fn(lastOpened);
 998             if ( fn.DirExists() )
 999             {
1000                 self->m_lastDirectory = fn.GetPath();
1001             }
1002             //else: should we try the next one?
1003         }
1004         //else: no history yet
1005
1006         // if we don't have any files in the history (yet?), use the
1007         // system-dependent default location for the document files
1008         if ( m_lastDirectory.empty() )
1009         {
1010             self->m_lastDirectory = wxStandardPaths::Get().GetAppDocumentsDir();
1011         }
1012     }
1013
1014     return m_lastDirectory;
1015 }
1016
1017 wxFileHistory *wxDocManager::OnCreateFileHistory()
1018 {
1019     return new wxFileHistory;
1020 }
1021
1022 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
1023 {
1024     wxDocument *doc = GetCurrentDocument();
1025     if (!doc)
1026         return;
1027     if (doc->Close())
1028     {
1029         doc->DeleteAllViews();
1030         if (m_docs.Member(doc))
1031             delete doc;
1032     }
1033 }
1034
1035 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
1036 {
1037     CloseDocuments(false);
1038 }
1039
1040 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
1041 {
1042     CreateNewDocument();
1043 }
1044
1045 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
1046 {
1047     if ( !CreateDocument("") )
1048     {
1049         OnOpenFileFailure();
1050     }
1051 }
1052
1053 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
1054 {
1055     wxDocument *doc = GetCurrentDocument();
1056     if (!doc)
1057         return;
1058     doc->Revert();
1059 }
1060
1061 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
1062 {
1063     wxDocument *doc = GetCurrentDocument();
1064     if (!doc)
1065         return;
1066     doc->Save();
1067 }
1068
1069 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1070 {
1071     wxDocument *doc = GetCurrentDocument();
1072     if (!doc)
1073         return;
1074     doc->SaveAs();
1075 }
1076
1077 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1078 {
1079 #if wxUSE_PRINTING_ARCHITECTURE
1080     wxView *view = GetActiveView();
1081     if (!view)
1082         return;
1083
1084     wxPrintout *printout = view->OnCreatePrintout();
1085     if (printout)
1086     {
1087         wxPrinter printer;
1088         printer.Print(view->GetFrame(), printout, true);
1089
1090         delete printout;
1091     }
1092 #endif // wxUSE_PRINTING_ARCHITECTURE
1093 }
1094
1095 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1096 {
1097 #if wxUSE_PRINTING_ARCHITECTURE
1098     wxView *view = GetActiveView();
1099     if (!view)
1100         return;
1101
1102     wxPrintout *printout = view->OnCreatePrintout();
1103     if (printout)
1104     {
1105         // Pass two printout objects: for preview, and possible printing.
1106         wxPrintPreviewBase *
1107             preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1108         if ( !preview->Ok() )
1109         {
1110             delete preview;
1111             wxLogError(_("Print preview creation failed."));
1112             return;
1113         }
1114
1115         wxPreviewFrame *
1116             frame = new wxPreviewFrame(preview, wxTheApp->GetTopWindow(),
1117                                        _("Print Preview"));
1118         frame->Centre(wxBOTH);
1119         frame->Initialize();
1120         frame->Show(true);
1121     }
1122 #endif // wxUSE_PRINTING_ARCHITECTURE
1123 }
1124
1125 void wxDocManager::OnUndo(wxCommandEvent& event)
1126 {
1127     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1128     if ( !cmdproc )
1129     {
1130         event.Skip();
1131         return;
1132     }
1133
1134     cmdproc->Undo();
1135 }
1136
1137 void wxDocManager::OnRedo(wxCommandEvent& event)
1138 {
1139     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1140     if ( !cmdproc )
1141     {
1142         event.Skip();
1143         return;
1144     }
1145
1146     cmdproc->Redo();
1147 }
1148
1149 // Handlers for UI update commands
1150
1151 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1152 {
1153     // CreateDocument() (which is called from OnFileOpen) may succeed
1154     // only when there is at least a template:
1155     event.Enable( GetTemplates().GetCount()>0 );
1156 }
1157
1158 void wxDocManager::OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event)
1159 {
1160     event.Enable( GetCurrentDocument() != NULL );
1161 }
1162
1163 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1164 {
1165     // CreateDocument() (which is called from OnFileNew) may succeed
1166     // only when there is at least a template:
1167     event.Enable( GetTemplates().GetCount()>0 );
1168 }
1169
1170 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1171 {
1172     wxDocument * const doc = GetCurrentDocument();
1173     event.Enable( doc && !doc->AlreadySaved() );
1174 }
1175
1176 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1177 {
1178     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1179     if ( !cmdproc )
1180     {
1181         event.Enable(false);
1182         return;
1183     }
1184
1185     event.Enable(cmdproc->CanUndo());
1186     cmdproc->SetMenuStrings();
1187 }
1188
1189 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1190 {
1191     wxCommandProcessor * const cmdproc = GetCurrentCommandProcessor();
1192     if ( !cmdproc )
1193     {
1194         event.Enable(false);
1195         return;
1196     }
1197
1198     event.Enable(cmdproc->CanRedo());
1199     cmdproc->SetMenuStrings();
1200 }
1201
1202 wxView *wxDocManager::GetActiveView() const
1203 {
1204     wxView *view = GetCurrentView();
1205
1206     if ( !view && !m_docs.empty() )
1207     {
1208         // if we have exactly one document, consider its view to be the current
1209         // one
1210         //
1211         // VZ: I'm not exactly sure why is this needed but this is how this
1212         //     code used to behave before the bug #9518 was fixed and it seems
1213         //     safer to preserve the old logic
1214         wxList::compatibility_iterator node = m_docs.GetFirst();
1215         if ( !node->GetNext() )
1216         {
1217             wxDocument *doc = static_cast<wxDocument *>(node->GetData());
1218             view = doc->GetFirstView();
1219         }
1220         //else: we have more than one document
1221     }
1222
1223     return view;
1224 }
1225
1226 bool wxDocManager::TryBefore(wxEvent& event)
1227 {
1228     wxView * const view = GetActiveView();
1229     return view && view->ProcessEventHere(event);
1230 }
1231
1232 namespace
1233 {
1234
1235 // helper function: return only the visible templates
1236 wxDocTemplates GetVisibleTemplates(const wxList& allTemplates)
1237 {
1238     // select only the visible templates
1239     const size_t totalNumTemplates = allTemplates.GetCount();
1240     wxDocTemplates templates;
1241     if ( totalNumTemplates )
1242     {
1243         templates.reserve(totalNumTemplates);
1244
1245         for ( wxList::const_iterator i = allTemplates.begin(),
1246                                    end = allTemplates.end();
1247               i != end;
1248               ++i )
1249         {
1250             wxDocTemplate * const temp = (wxDocTemplate *)*i;
1251             if ( temp->IsVisible() )
1252                 templates.push_back(temp);
1253         }
1254     }
1255
1256     return templates;
1257 }
1258
1259 } // anonymous namespace
1260
1261 wxDocument *wxDocManager::CreateDocument(const wxString& pathOrig, long flags)
1262 {
1263     // this ought to be const but SelectDocumentType/Path() are not
1264     // const-correct and can't be changed as, being virtual, this risks
1265     // breaking user code overriding them
1266     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1267     const size_t numTemplates = templates.size();
1268     if ( !numTemplates )
1269     {
1270         // no templates can be used, can't create document
1271         return NULL;
1272     }
1273
1274
1275     // normally user should select the template to use but wxDOC_SILENT flag we
1276     // choose one ourselves
1277     wxString path = pathOrig;   // may be modified below
1278     wxDocTemplate *temp;
1279     if ( flags & wxDOC_SILENT )
1280     {
1281         wxASSERT_MSG( !path.empty(),
1282                       "using empty path with wxDOC_SILENT doesn't make sense" );
1283
1284         temp = FindTemplateForPath(path);
1285         if ( !temp )
1286         {
1287             wxLogWarning(_("The format of file '%s' couldn't be determined."),
1288                          path);
1289         }
1290     }
1291     else // not silent, ask the user
1292     {
1293         // for the new file we need just the template, for an existing one we
1294         // need the template and the path, unless it's already specified
1295         if ( (flags & wxDOC_NEW) || !path.empty() )
1296             temp = SelectDocumentType(&templates[0], numTemplates);
1297         else
1298             temp = SelectDocumentPath(&templates[0], numTemplates, path, flags);
1299     }
1300
1301     if ( !temp )
1302         return NULL;
1303
1304     // check whether the document with this path is already opened
1305     if ( !path.empty() )
1306     {
1307         const wxFileName fn(path);
1308         for ( wxList::const_iterator i = m_docs.begin(); i != m_docs.end(); ++i )
1309         {
1310             wxDocument * const doc = (wxDocument*)*i;
1311
1312             if ( fn == doc->GetFilename() )
1313             {
1314                 // file already open, just activate it and return
1315                 if ( doc->GetFirstView() )
1316                 {
1317                     ActivateView(doc->GetFirstView());
1318                     if ( doc->GetDocumentWindow() )
1319                         doc->GetDocumentWindow()->SetFocus();
1320                     return doc;
1321                 }
1322             }
1323         }
1324     }
1325
1326
1327     // no, we need to create a new document
1328
1329
1330     // if we've reached the max number of docs, close the first one.
1331     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1332     {
1333         if ( !CloseDocument((wxDocument *)GetDocuments().GetFirst()->GetData()) )
1334         {
1335             // can't open the new document if closing the old one failed
1336             return NULL;
1337         }
1338     }
1339
1340
1341     // do create and initialize the new document finally
1342     wxDocument * const docNew = temp->CreateDocument(path, flags);
1343     if ( !docNew )
1344         return NULL;
1345
1346     docNew->SetDocumentName(temp->GetDocumentName());
1347     docNew->SetDocumentTemplate(temp);
1348
1349     wxTRY
1350     {
1351         // call the appropriate function depending on whether we're creating a
1352         // new file or opening an existing one
1353         if ( !(flags & wxDOC_NEW ? docNew->OnNewDocument()
1354                                  : docNew->OnOpenDocument(path)) )
1355         {
1356             docNew->DeleteAllViews();
1357             return NULL;
1358         }
1359     }
1360     wxCATCH_ALL( docNew->DeleteAllViews(); throw; )
1361
1362     // add the successfully opened file to MRU, but only if we're going to be
1363     // able to reopen it successfully later which requires the template for
1364     // this document to be retrievable from the file extension
1365     if ( !(flags & wxDOC_NEW) && temp->FileMatchesTemplate(path) )
1366         AddFileToHistory(path);
1367
1368     return docNew;
1369 }
1370
1371 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1372 {
1373     wxDocTemplates templates(GetVisibleTemplates(m_templates));
1374     const size_t numTemplates = templates.size();
1375
1376     if ( numTemplates == 0 )
1377         return NULL;
1378
1379     wxDocTemplate * const
1380     temp = numTemplates == 1 ? templates[0]
1381                              : SelectViewType(&templates[0], numTemplates);
1382
1383     if ( !temp )
1384         return NULL;
1385
1386     wxView *view = temp->CreateView(doc, flags);
1387     if ( view )
1388         view->SetViewName(temp->GetViewName());
1389     return view;
1390 }
1391
1392 // Not yet implemented
1393 void
1394 wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1395 {
1396 }
1397
1398 // Not yet implemented
1399 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1400 {
1401     return false;
1402 }
1403
1404 wxDocument *wxDocManager::GetCurrentDocument() const
1405 {
1406     wxView * const view = GetActiveView();
1407     return view ? view->GetDocument() : NULL;
1408 }
1409
1410 wxCommandProcessor *wxDocManager::GetCurrentCommandProcessor() const
1411 {
1412     wxDocument * const doc = GetCurrentDocument();
1413     return doc ? doc->GetCommandProcessor() : NULL;
1414 }
1415
1416 // Make a default name for a new document
1417 #if WXWIN_COMPATIBILITY_2_8
1418 bool wxDocManager::MakeDefaultName(wxString& WXUNUSED(name))
1419 {
1420     // we consider that this function can only be overridden by the user code,
1421     // not called by it as it only makes sense to call it internally, so we
1422     // don't bother to return anything from here
1423     return false;
1424 }
1425 #endif // WXWIN_COMPATIBILITY_2_8
1426
1427 wxString wxDocManager::MakeNewDocumentName()
1428 {
1429     wxString name;
1430
1431 #if WXWIN_COMPATIBILITY_2_8
1432     if ( !MakeDefaultName(name) )
1433 #endif // WXWIN_COMPATIBILITY_2_8
1434     {
1435         name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1436         m_defaultDocumentNameCounter++;
1437     }
1438
1439     return name;
1440 }
1441
1442 // Make a frame title (override this to do something different)
1443 // If docName is empty, a document is not currently active.
1444 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1445 {
1446     wxString appName = wxTheApp->GetAppDisplayName();
1447     wxString title;
1448     if (!doc)
1449         title = appName;
1450     else
1451     {
1452         wxString docName = doc->GetUserReadableName();
1453         title = docName + wxString(_(" - ")) + appName;
1454     }
1455     return title;
1456 }
1457
1458
1459 // Not yet implemented
1460 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1461 {
1462     return NULL;
1463 }
1464
1465 // File history management
1466 void wxDocManager::AddFileToHistory(const wxString& file)
1467 {
1468     if (m_fileHistory)
1469         m_fileHistory->AddFileToHistory(file);
1470 }
1471
1472 void wxDocManager::RemoveFileFromHistory(size_t i)
1473 {
1474     if (m_fileHistory)
1475         m_fileHistory->RemoveFileFromHistory(i);
1476 }
1477
1478 wxString wxDocManager::GetHistoryFile(size_t i) const
1479 {
1480     wxString histFile;
1481
1482     if (m_fileHistory)
1483         histFile = m_fileHistory->GetHistoryFile(i);
1484
1485     return histFile;
1486 }
1487
1488 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1489 {
1490     if (m_fileHistory)
1491         m_fileHistory->UseMenu(menu);
1492 }
1493
1494 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1495 {
1496     if (m_fileHistory)
1497         m_fileHistory->RemoveMenu(menu);
1498 }
1499
1500 #if wxUSE_CONFIG
1501 void wxDocManager::FileHistoryLoad(const wxConfigBase& config)
1502 {
1503     if (m_fileHistory)
1504         m_fileHistory->Load(config);
1505 }
1506
1507 void wxDocManager::FileHistorySave(wxConfigBase& config)
1508 {
1509     if (m_fileHistory)
1510         m_fileHistory->Save(config);
1511 }
1512 #endif
1513
1514 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1515 {
1516     if (m_fileHistory)
1517         m_fileHistory->AddFilesToMenu(menu);
1518 }
1519
1520 void wxDocManager::FileHistoryAddFilesToMenu()
1521 {
1522     if (m_fileHistory)
1523         m_fileHistory->AddFilesToMenu();
1524 }
1525
1526 size_t wxDocManager::GetHistoryFilesCount() const
1527 {
1528     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1529 }
1530
1531
1532 // Find out the document template via matching in the document file format
1533 // against that of the template
1534 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1535 {
1536     wxDocTemplate *theTemplate = NULL;
1537
1538     // Find the template which this extension corresponds to
1539     for (size_t i = 0; i < m_templates.GetCount(); i++)
1540     {
1541         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1542         if ( temp->FileMatchesTemplate(path) )
1543         {
1544             theTemplate = temp;
1545             break;
1546         }
1547     }
1548     return theTemplate;
1549 }
1550
1551 // Prompts user to open a file, using file specs in templates.
1552 // Must extend the file selector dialog or implement own; OR
1553 // match the extension to the template extension.
1554
1555 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1556                                                 int noTemplates,
1557                                                 wxString& path,
1558                                                 long WXUNUSED(flags),
1559                                                 bool WXUNUSED(save))
1560 {
1561 #ifdef wxHAS_MULTIPLE_FILEDLG_FILTERS
1562     wxString descrBuf;
1563
1564     for (int i = 0; i < noTemplates; i++)
1565     {
1566         if (templates[i]->IsVisible())
1567         {
1568             // add a '|' to separate this filter from the previous one
1569             if ( !descrBuf.empty() )
1570                 descrBuf << wxT('|');
1571
1572             descrBuf << templates[i]->GetDescription()
1573                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1574                 << templates[i]->GetFileFilter();
1575         }
1576     }
1577 #else
1578     wxString descrBuf = wxT("*.*");
1579     wxUnusedVar(noTemplates);
1580 #endif
1581
1582     int FilterIndex = -1;
1583
1584     wxString pathTmp = wxFileSelectorEx(_("Open File"),
1585                                         GetLastDirectory(),
1586                                         wxEmptyString,
1587                                         &FilterIndex,
1588                                         descrBuf);
1589
1590     wxDocTemplate *theTemplate = NULL;
1591     if (!pathTmp.empty())
1592     {
1593         if (!wxFileExists(pathTmp))
1594         {
1595             wxString msgTitle;
1596             if (!wxTheApp->GetAppDisplayName().empty())
1597                 msgTitle = wxTheApp->GetAppDisplayName();
1598             else
1599                 msgTitle = wxString(_("File error"));
1600
1601             wxMessageBox(_("Sorry, could not open this file."),
1602                          msgTitle,
1603                          wxOK | wxICON_EXCLAMATION | wxCENTRE);
1604
1605             path = wxEmptyString;
1606             return NULL;
1607         }
1608
1609         SetLastDirectory(wxPathOnly(pathTmp));
1610
1611         path = pathTmp;
1612
1613         // first choose the template using the extension, if this fails (i.e.
1614         // wxFileSelectorEx() didn't fill it), then use the path
1615         if ( FilterIndex != -1 )
1616             theTemplate = templates[FilterIndex];
1617         if ( !theTemplate )
1618             theTemplate = FindTemplateForPath(path);
1619         if ( !theTemplate )
1620         {
1621             // Since we do not add files with non-default extensions to the
1622             // file history this can only happen if the application changes the
1623             // allowed templates in runtime.
1624             wxMessageBox(_("Sorry, the format for this file is unknown."),
1625                          _("Open File"),
1626                          wxOK | wxICON_EXCLAMATION | wxCENTRE);
1627         }
1628     }
1629     else
1630     {
1631         path.clear();
1632     }
1633
1634     return theTemplate;
1635 }
1636
1637 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1638                                                 int noTemplates, bool sort)
1639 {
1640     wxArrayString strings;
1641     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1642     int i;
1643     int n = 0;
1644
1645     for (i = 0; i < noTemplates; i++)
1646     {
1647         if (templates[i]->IsVisible())
1648         {
1649             int j;
1650             bool want = true;
1651             for (j = 0; j < n; j++)
1652             {
1653                 //filter out NOT unique documents + view combinations
1654                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1655                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1656                    )
1657                     want = false;
1658             }
1659
1660             if ( want )
1661             {
1662                 strings.Add(templates[i]->m_description);
1663
1664                 data[n] = templates[i];
1665                 n ++;
1666             }
1667         }
1668     }  // for
1669
1670     if (sort)
1671     {
1672         strings.Sort(); // ascending sort
1673         // Yes, this will be slow, but template lists
1674         // are typically short.
1675         int j;
1676         n = strings.Count();
1677         for (i = 0; i < n; i++)
1678         {
1679             for (j = 0; j < noTemplates; j++)
1680             {
1681                 if (strings[i] == templates[j]->m_description)
1682                     data[i] = templates[j];
1683             }
1684         }
1685     }
1686
1687     wxDocTemplate *theTemplate;
1688
1689     switch ( n )
1690     {
1691         case 0:
1692             // no visible templates, hence nothing to choose from
1693             theTemplate = NULL;
1694             break;
1695
1696         case 1:
1697             // don't propose the user to choose if he has no choice
1698             theTemplate = data[0];
1699             break;
1700
1701         default:
1702             // propose the user to choose one of several
1703             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1704                           (
1705                             _("Select a document template"),
1706                             _("Templates"),
1707                             strings,
1708                             (void **)data.get()
1709                           );
1710     }
1711
1712     return theTemplate;
1713 }
1714
1715 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1716                                             int noTemplates, bool sort)
1717 {
1718     wxArrayString strings;
1719     wxScopedArray<wxDocTemplate *> data(new wxDocTemplate *[noTemplates]);
1720     int i;
1721     int n = 0;
1722
1723     for (i = 0; i < noTemplates; i++)
1724     {
1725         wxDocTemplate *templ = templates[i];
1726         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1727         {
1728             int j;
1729             bool want = true;
1730             for (j = 0; j < n; j++)
1731             {
1732                 //filter out NOT unique views
1733                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1734                     want = false;
1735             }
1736
1737             if ( want )
1738             {
1739                 strings.Add(templ->m_viewTypeName);
1740                 data[n] = templ;
1741                 n ++;
1742             }
1743         }
1744     }
1745
1746     if (sort)
1747     {
1748         strings.Sort(); // ascending sort
1749         // Yes, this will be slow, but template lists
1750         // are typically short.
1751         int j;
1752         n = strings.Count();
1753         for (i = 0; i < n; i++)
1754         {
1755             for (j = 0; j < noTemplates; j++)
1756             {
1757                 if (strings[i] == templates[j]->m_viewTypeName)
1758                     data[i] = templates[j];
1759             }
1760         }
1761     }
1762
1763     wxDocTemplate *theTemplate;
1764
1765     // the same logic as above
1766     switch ( n )
1767     {
1768         case 0:
1769             theTemplate = NULL;
1770             break;
1771
1772         case 1:
1773             theTemplate = data[0];
1774             break;
1775
1776         default:
1777             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1778                           (
1779                             _("Select a document view"),
1780                             _("Views"),
1781                             strings,
1782                             (void **)data.get()
1783                           );
1784
1785     }
1786
1787     return theTemplate;
1788 }
1789
1790 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1791 {
1792     if (!m_templates.Member(temp))
1793         m_templates.Append(temp);
1794 }
1795
1796 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1797 {
1798     m_templates.DeleteObject(temp);
1799 }
1800
1801 // Add and remove a document from the manager's list
1802 void wxDocManager::AddDocument(wxDocument *doc)
1803 {
1804     if (!m_docs.Member(doc))
1805         m_docs.Append(doc);
1806 }
1807
1808 void wxDocManager::RemoveDocument(wxDocument *doc)
1809 {
1810     m_docs.DeleteObject(doc);
1811 }
1812
1813 // Views or windows should inform the document manager
1814 // when a view is going in or out of focus
1815 void wxDocManager::ActivateView(wxView *view, bool activate)
1816 {
1817     if ( activate )
1818     {
1819         m_currentView = view;
1820     }
1821     else // deactivate
1822     {
1823         if ( m_currentView == view )
1824         {
1825             // don't keep stale pointer
1826             m_currentView = NULL;
1827         }
1828     }
1829 }
1830
1831 // ----------------------------------------------------------------------------
1832 // wxDocChildFrameAnyBase
1833 // ----------------------------------------------------------------------------
1834
1835 bool wxDocChildFrameAnyBase::CloseView(wxCloseEvent& event)
1836 {
1837     if ( m_childView )
1838     {
1839         if ( event.CanVeto() && !m_childView->Close(false) )
1840         {
1841             event.Veto();
1842             return false;
1843         }
1844
1845         m_childView->Activate(false);
1846
1847         // it is important to reset m_childView frame pointer to NULL before
1848         // deleting it because while normally it is the frame which deletes the
1849         // view when it's closed, the view also closes the frame if it is
1850         // deleted directly not by us as indicated by its doc child frame
1851         // pointer still being set
1852         m_childView->SetDocChildFrame(NULL);
1853         delete m_childView;
1854         m_childView = NULL;
1855     }
1856
1857     m_childDocument = NULL;
1858
1859     return true;
1860 }
1861
1862 // ----------------------------------------------------------------------------
1863 // Default parent frame
1864 // ----------------------------------------------------------------------------
1865
1866 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1867     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1868     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1869     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1870 END_EVENT_TABLE()
1871
1872 wxDocParentFrame::wxDocParentFrame()
1873 {
1874     m_docManager = NULL;
1875 }
1876
1877 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1878                                    wxFrame *frame,
1879                                    wxWindowID id,
1880                                    const wxString& title,
1881                                    const wxPoint& pos,
1882                                    const wxSize& size,
1883                                    long style,
1884                                    const wxString& name)
1885                 : wxFrame(frame, id, title, pos, size, style, name)
1886 {
1887     m_docManager = manager;
1888 }
1889
1890 bool wxDocParentFrame::Create(wxDocManager *manager,
1891                               wxFrame *frame,
1892                               wxWindowID id,
1893                               const wxString& title,
1894                               const wxPoint& pos,
1895                               const wxSize& size,
1896                               long style,
1897                               const wxString& name)
1898 {
1899     m_docManager = manager;
1900     return base_type::Create(frame, id, title, pos, size, style, name);
1901 }
1902
1903 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1904 {
1905     Close();
1906 }
1907
1908 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1909 {
1910     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1911     wxString filename(m_docManager->GetHistoryFile(n));
1912     if ( filename.empty() )
1913         return;
1914
1915     wxString errMsg; // must contain exactly one "%s" if non-empty
1916     if ( wxFile::Exists(filename) )
1917     {
1918         // try to open it
1919         if ( m_docManager->CreateDocument(filename, wxDOC_SILENT) )
1920             return;
1921
1922         errMsg = _("The file '%s' couldn't be opened.");
1923     }
1924     else // file doesn't exist
1925     {
1926         errMsg = _("The file '%s' doesn't exist and couldn't be opened.");
1927     }
1928
1929
1930     wxASSERT_MSG( !errMsg.empty(), "should have an error message" );
1931
1932     // remove the file which we can't open from the MRU list
1933     m_docManager->RemoveFileFromHistory(n);
1934
1935     // and tell the user about it
1936     wxLogError(errMsg + '\n' +
1937                _("It has been removed from the most recently used files list."),
1938                filename);
1939 }
1940
1941 // Extend event processing to search the view's event table
1942 bool wxDocParentFrame::TryBefore(wxEvent& event)
1943 {
1944     if ( m_docManager && m_docManager->ProcessEventHere(event) )
1945         return true;
1946
1947     return wxFrame::TryBefore(event);
1948 }
1949
1950 // Define the behaviour for the frame closing
1951 // - must delete all frames except for the main one.
1952 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1953 {
1954     if (m_docManager->Clear(!event.CanVeto()))
1955     {
1956         Destroy();
1957     }
1958     else
1959         event.Veto();
1960 }
1961
1962 #if wxUSE_PRINTING_ARCHITECTURE
1963
1964 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1965              : wxPrintout(title)
1966 {
1967     m_printoutView = view;
1968 }
1969
1970 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1971 {
1972     wxDC *dc = GetDC();
1973
1974     // Get the logical pixels per inch of screen and printer
1975     int ppiScreenX, ppiScreenY;
1976     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1977     wxUnusedVar(ppiScreenY);
1978     int ppiPrinterX, ppiPrinterY;
1979     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1980     wxUnusedVar(ppiPrinterY);
1981
1982     // This scales the DC so that the printout roughly represents the
1983     // the screen scaling. The text point size _should_ be the right size
1984     // but in fact is too small for some reason. This is a detail that will
1985     // need to be addressed at some point but can be fudged for the
1986     // moment.
1987     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1988
1989     // Now we have to check in case our real page size is reduced
1990     // (e.g. because we're drawing to a print preview memory DC)
1991     int pageWidth, pageHeight;
1992     int w, h;
1993     dc->GetSize(&w, &h);
1994     GetPageSizePixels(&pageWidth, &pageHeight);
1995     wxUnusedVar(pageHeight);
1996
1997     // If printer pageWidth == current DC width, then this doesn't
1998     // change. But w might be the preview bitmap width, so scale down.
1999     float overallScale = scale * (float)(w/(float)pageWidth);
2000     dc->SetUserScale(overallScale, overallScale);
2001
2002     if (m_printoutView)
2003     {
2004         m_printoutView->OnDraw(dc);
2005     }
2006     return true;
2007 }
2008
2009 bool wxDocPrintout::HasPage(int pageNum)
2010 {
2011     return (pageNum == 1);
2012 }
2013
2014 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2015 {
2016     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2017         return false;
2018
2019     return true;
2020 }
2021
2022 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage,
2023                                 int *selPageFrom, int *selPageTo)
2024 {
2025     *minPage = 1;
2026     *maxPage = 1;
2027     *selPageFrom = 1;
2028     *selPageTo = 1;
2029 }
2030
2031 #endif // wxUSE_PRINTING_ARCHITECTURE
2032
2033 // ----------------------------------------------------------------------------
2034 // File history (a.k.a. MRU, most recently used, files list)
2035 // ----------------------------------------------------------------------------
2036
2037 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2038 {
2039     m_fileMaxFiles = maxFiles;
2040     m_idBase = idBase;
2041 }
2042
2043 void wxFileHistory::AddFileToHistory(const wxString& file)
2044 {
2045     // check if we don't already have this file
2046     const wxFileName fnNew(file);
2047     size_t i,
2048            numFiles = m_fileHistory.size();
2049     for ( i = 0; i < numFiles; i++ )
2050     {
2051         if ( fnNew == m_fileHistory[i] )
2052         {
2053             // we do have it, move it to the top of the history
2054             RemoveFileFromHistory(i);
2055             numFiles--;
2056             break;
2057         }
2058     }
2059
2060     // if we already have a full history, delete the one at the end
2061     if ( numFiles == m_fileMaxFiles )
2062     {
2063         RemoveFileFromHistory(--numFiles);
2064     }
2065
2066     // add a new menu item to all file menus (they will be updated below)
2067     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2068         node;
2069         node = node->GetNext() )
2070     {
2071         wxMenu * const menu = (wxMenu *)node->GetData();
2072
2073         if ( !numFiles && menu->GetMenuItemCount() )
2074             menu->AppendSeparator();
2075
2076         // label doesn't matter, it will be set below anyhow, but it can't
2077         // be empty (this is supposed to indicate a stock item)
2078         menu->Append(m_idBase + numFiles, " ");
2079     }
2080
2081     // insert the new file in the beginning of the file history
2082     m_fileHistory.insert(m_fileHistory.begin(), file);
2083     numFiles++;
2084
2085     // update the labels in all menus
2086     for ( i = 0; i < numFiles; i++ )
2087     {
2088         // if in same directory just show the filename; otherwise the full path
2089         const wxFileName fnOld(m_fileHistory[i]);
2090
2091         wxString pathInMenu;
2092         if ( fnOld.GetPath() == fnNew.GetPath() )
2093         {
2094             pathInMenu = fnOld.GetFullName();
2095         }
2096         else // file in different directory
2097         {
2098             // absolute path; could also set relative path
2099             pathInMenu = m_fileHistory[i];
2100         }
2101
2102         for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2103               node;
2104               node = node->GetNext() )
2105         {
2106             wxMenu * const menu = (wxMenu *)node->GetData();
2107
2108             menu->SetLabel(m_idBase + i, GetMRUEntryLabel(i, pathInMenu));
2109         }
2110     }
2111 }
2112
2113 void wxFileHistory::RemoveFileFromHistory(size_t i)
2114 {
2115     size_t numFiles = m_fileHistory.size();
2116     wxCHECK_RET( i < numFiles,
2117                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2118
2119     // delete the element from the array
2120     m_fileHistory.RemoveAt(i);
2121     numFiles--;
2122
2123     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2124           node;
2125           node = node->GetNext() )
2126     {
2127         wxMenu * const menu = (wxMenu *) node->GetData();
2128
2129         // shift filenames up
2130         for ( size_t j = i; j < numFiles; j++ )
2131         {
2132             menu->SetLabel(m_idBase + j, GetMRUEntryLabel(j, m_fileHistory[j]));
2133         }
2134
2135         // delete the last menu item which is unused now
2136         const wxWindowID lastItemId = m_idBase + numFiles;
2137         if ( menu->FindItem(lastItemId) )
2138             menu->Delete(lastItemId);
2139
2140         // delete the last separator too if no more files are left
2141         if ( m_fileHistory.empty() )
2142         {
2143             const wxMenuItemList::compatibility_iterator
2144                 nodeLast = menu->GetMenuItems().GetLast();
2145             if ( nodeLast )
2146             {
2147                 wxMenuItem * const lastMenuItem = nodeLast->GetData();
2148                 if ( lastMenuItem->IsSeparator() )
2149                     menu->Delete(lastMenuItem);
2150             }
2151             //else: menu is empty somehow
2152         }
2153     }
2154 }
2155
2156 void wxFileHistory::UseMenu(wxMenu *menu)
2157 {
2158     if ( !m_fileMenus.Member(menu) )
2159         m_fileMenus.Append(menu);
2160 }
2161
2162 void wxFileHistory::RemoveMenu(wxMenu *menu)
2163 {
2164     m_fileMenus.DeleteObject(menu);
2165 }
2166
2167 #if wxUSE_CONFIG
2168 void wxFileHistory::Load(const wxConfigBase& config)
2169 {
2170     m_fileHistory.Clear();
2171
2172     wxString buf;
2173     buf.Printf(wxT("file%d"), 1);
2174
2175     wxString historyFile;
2176     while ((m_fileHistory.GetCount() < m_fileMaxFiles) &&
2177            config.Read(buf, &historyFile) && !historyFile.empty())
2178     {
2179         m_fileHistory.Add(historyFile);
2180
2181         buf.Printf(wxT("file%d"), (int)m_fileHistory.GetCount()+1);
2182         historyFile = wxEmptyString;
2183     }
2184
2185     AddFilesToMenu();
2186 }
2187
2188 void wxFileHistory::Save(wxConfigBase& config)
2189 {
2190     size_t i;
2191     for (i = 0; i < m_fileMaxFiles; i++)
2192     {
2193         wxString buf;
2194         buf.Printf(wxT("file%d"), (int)i+1);
2195         if (i < m_fileHistory.GetCount())
2196             config.Write(buf, wxString(m_fileHistory[i]));
2197         else
2198             config.Write(buf, wxEmptyString);
2199     }
2200 }
2201 #endif // wxUSE_CONFIG
2202
2203 void wxFileHistory::AddFilesToMenu()
2204 {
2205     if ( m_fileHistory.empty() )
2206         return;
2207
2208     for ( wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2209           node;
2210           node = node->GetNext() )
2211     {
2212         AddFilesToMenu((wxMenu *) node->GetData());
2213     }
2214 }
2215
2216 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2217 {
2218     if ( m_fileHistory.empty() )
2219         return;
2220
2221     if ( menu->GetMenuItemCount() )
2222         menu->AppendSeparator();
2223
2224     for ( size_t i = 0; i < m_fileHistory.GetCount(); i++ )
2225     {
2226         menu->Append(m_idBase + i, GetMRUEntryLabel(i, m_fileHistory[i]));
2227     }
2228 }
2229
2230 // ----------------------------------------------------------------------------
2231 // Permits compatibility with existing file formats and functions that
2232 // manipulate files directly
2233 // ----------------------------------------------------------------------------
2234
2235 #if wxUSE_STD_IOSTREAM
2236
2237 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2238 {
2239 #if wxUSE_FFILE
2240     wxFFile file(filename, wxT("rb"));
2241 #elif wxUSE_FILE
2242     wxFile file(filename, wxFile::read);
2243 #endif
2244     if ( !file.IsOpened() )
2245         return false;
2246
2247     char buf[4096];
2248
2249     size_t nRead;
2250     do
2251     {
2252         nRead = file.Read(buf, WXSIZEOF(buf));
2253         if ( file.Error() )
2254             return false;
2255
2256         stream.write(buf, nRead);
2257         if ( !stream )
2258             return false;
2259     }
2260     while ( !file.Eof() );
2261
2262     return true;
2263 }
2264
2265 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2266 {
2267 #if wxUSE_FFILE
2268     wxFFile file(filename, wxT("wb"));
2269 #elif wxUSE_FILE
2270     wxFile file(filename, wxFile::write);
2271 #endif
2272     if ( !file.IsOpened() )
2273         return false;
2274
2275     char buf[4096];
2276     do
2277     {
2278         stream.read(buf, WXSIZEOF(buf));
2279         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2280         {
2281             if ( !file.Write(buf, stream.gcount()) )
2282                 return false;
2283         }
2284     }
2285     while ( !stream.eof() );
2286
2287     return true;
2288 }
2289
2290 #else // !wxUSE_STD_IOSTREAM
2291
2292 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2293 {
2294 #if wxUSE_FFILE
2295     wxFFile file(filename, wxT("rb"));
2296 #elif wxUSE_FILE
2297     wxFile file(filename, wxFile::read);
2298 #endif
2299     if ( !file.IsOpened() )
2300         return false;
2301
2302     char buf[4096];
2303
2304     size_t nRead;
2305     do
2306     {
2307         nRead = file.Read(buf, WXSIZEOF(buf));
2308         if ( file.Error() )
2309             return false;
2310
2311         stream.Write(buf, nRead);
2312         if ( !stream )
2313             return false;
2314     }
2315     while ( !file.Eof() );
2316
2317     return true;
2318 }
2319
2320 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2321 {
2322 #if wxUSE_FFILE
2323     wxFFile file(filename, wxT("wb"));
2324 #elif wxUSE_FILE
2325     wxFile file(filename, wxFile::write);
2326 #endif
2327     if ( !file.IsOpened() )
2328         return false;
2329
2330     char buf[4096];
2331     for ( ;; )
2332     {
2333         stream.Read(buf, WXSIZEOF(buf));
2334
2335         const size_t nRead = stream.LastRead();
2336         if ( !nRead )
2337         {
2338             if ( stream.Eof() )
2339                 break;
2340
2341             return false;
2342         }
2343
2344         if ( !file.Write(buf, nRead) )
2345             return false;
2346     }
2347
2348     return true;
2349 }
2350
2351 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2352
2353 #endif // wxUSE_DOC_VIEW_ARCHITECTURE