src/common/docview.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/docview.cpp
   3 // Purpose:     Document/view classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_DOC_VIEW_ARCHITECTURE
  28
  29 #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 #endif
  44
  45 #include "wx/ffile.h"
  46
  47 #ifdef __WXMAC__
  48     #include "wx/filename.h"
  49 #endif
  50
  51 #ifdef __WXGTK__
  52     #include "wx/mdi.h"
  53 #endif
  54
  55 #if wxUSE_PRINTING_ARCHITECTURE
  56     #include "wx/prntbase.h"
  57     #include "wx/printdlg.h"
  58 #endif
  59
  60 #include "wx/choicdlg.h"
  61 #include "wx/confbase.h"
  62 #include "wx/file.h"
  63 #include "wx/cmdproc.h"
  64 #include "wx/tokenzr.h"
  65
  66 #include <stdio.h>
  67 #include <string.h>
  68
  69 #if wxUSE_STD_IOSTREAM
  70     #include "wx/ioswrap.h"
  71     #if wxUSE_IOSTREAMH
  72         #include <fstream.h>
  73     #else
  74         #include <fstream>
  75     #endif
  76 #else
  77     #include "wx/wfstream.h"
  78 #endif
  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 // function prototypes
  99 // ----------------------------------------------------------------------------
 100
 101 static inline wxString FindExtension(const wxChar *path);
 102 static wxWindow* wxFindSuitableParent(void);
 103
 104 // ----------------------------------------------------------------------------
 105 // local constants
 106 // ----------------------------------------------------------------------------
 107
 108 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 109
 110 // ============================================================================
 111 // implementation
 112 // ============================================================================
 113
 114 // ----------------------------------------------------------------------------
 115 // local functions
 116 // ----------------------------------------------------------------------------
 117
 118 static wxString FindExtension(const wxChar *path)
 119 {
 120     wxString ext;
 121     wxSplitPath(path, NULL, NULL, &ext);
 122
 123     // VZ: extensions are considered not case sensitive - is this really a good
 124     //     idea?
 125     return ext.MakeLower();
 126 }
 127
 128 // ----------------------------------------------------------------------------
 129 // Definition of wxDocument
 130 // ----------------------------------------------------------------------------
 131
 132 wxDocument::wxDocument(wxDocument *parent)
 133 {
 134     m_documentModified = false;
 135     m_documentParent = parent;
 136     m_documentTemplate = (wxDocTemplate *) NULL;
 137     m_commandProcessor = (wxCommandProcessor*) NULL;
 138     m_savedYet = false;
 139 }
 140
 141 bool wxDocument::DeleteContents()
 142 {
 143     return true;
 144 }
 145
 146 wxDocument::~wxDocument()
 147 {
 148     DeleteContents();
 149
 150     if (m_commandProcessor)
 151         delete m_commandProcessor;
 152
 153     if (GetDocumentManager())
 154         GetDocumentManager()->RemoveDocument(this);
 155
 156     // Not safe to do here, since it'll invoke virtual view functions
 157     // expecting to see valid derived objects: and by the time we get here,
 158     // we've called destructors higher up.
 159     //DeleteAllViews();
 160 }
 161
 162 bool wxDocument::Close()
 163 {
 164     if (OnSaveModified())
 165         return OnCloseDocument();
 166     else
 167         return false;
 168 }
 169
 170 bool wxDocument::OnCloseDocument()
 171 {
 172     // Tell all views that we're about to close
 173     NotifyClosing();
 174     DeleteContents();
 175     Modify(false);
 176     return true;
 177 }
 178
 179 // Note that this implicitly deletes the document when the last view is
 180 // deleted.
 181 bool wxDocument::DeleteAllViews()
 182 {
 183     wxDocManager* manager = GetDocumentManager();
 184
 185     // first check if all views agree to be closed
 186     const wxList::iterator end = m_documentViews.end();
 187     for ( wxList::iterator i = m_documentViews.begin(); i != end; ++i )
 188     {
 189         wxView *view = (wxView *)*i;
 190         if ( !view->Close() )
 191             return false;
 192     }
 193
 194     // all views agreed to close, now do close them
 195     if ( m_documentViews.empty() )
 196     {
 197         // normally the document would be implicitly deleted when the last view
 198         // is, but if don't have any views, do it here instead
 199         if ( manager && manager->GetDocuments().Member(this) )
 200             delete this;
 201     }
 202     else // have views
 203     {
 204         // as we delete elements we iterate over, don't use the usual "from
 205         // begin to end" loop
 206         for ( ;; )
 207         {
 208             wxView *view = (wxView *)*m_documentViews.begin();
 209
 210             bool isLastOne = m_documentViews.size() == 1;
 211
 212             // this always deletes the node implicitly and if this is the last
 213             // view also deletes this object itself (also implicitly, great),
 214             // so we can't test for m_documentViews.empty() after calling this!
 215             delete view;
 216
 217             if ( isLastOne )
 218                 break;
 219         }
 220     }
 221
 222     return true;
 223 }
 224
 225 wxView *wxDocument::GetFirstView() const
 226 {
 227     if (m_documentViews.GetCount() == 0)
 228         return (wxView *) NULL;
 229     return (wxView *)m_documentViews.GetFirst()->GetData();
 230 }
 231
 232 wxDocManager *wxDocument::GetDocumentManager() const
 233 {
 234     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 235 }
 236
 237 bool wxDocument::OnNewDocument()
 238 {
 239     if (!OnSaveModified())
 240         return false;
 241
 242     if (OnCloseDocument()==false) return false;
 243     DeleteContents();
 244     Modify(false);
 245     SetDocumentSaved(false);
 246
 247     wxString name;
 248     GetDocumentManager()->MakeDefaultName(name);
 249     SetTitle(name);
 250     SetFilename(name, true);
 251
 252     return true;
 253 }
 254
 255 bool wxDocument::Save()
 256 {
 257     if (!IsModified() && m_savedYet)
 258         return true;
 259
 260     if ( m_documentFile.empty() || !m_savedYet )
 261         return SaveAs();
 262
 263     return OnSaveDocument(m_documentFile);
 264 }
 265
 266 bool wxDocument::SaveAs()
 267 {
 268     wxDocTemplate *docTemplate = GetDocumentTemplate();
 269     if (!docTemplate)
 270         return false;
 271
 272 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
 273     wxString filter = docTemplate->GetDescription() + wxT(" (") + docTemplate->GetFileFilter() + wxT(")|") + docTemplate->GetFileFilter();
 274
 275     // Now see if there are some other template with identical view and document
 276     // classes, whose filters may also be used.
 277
 278     if (docTemplate->GetViewClassInfo() && docTemplate->GetDocClassInfo())
 279     {
 280         wxList::compatibility_iterator node = wxDocManager::GetDocumentManager()->GetTemplates().GetFirst();
 281         while (node)
 282         {
 283             wxDocTemplate *t = (wxDocTemplate*) node->GetData();
 284
 285             if (t->IsVisible() && t != docTemplate &&
 286                 t->GetViewClassInfo() == docTemplate->GetViewClassInfo() &&
 287                 t->GetDocClassInfo() == docTemplate->GetDocClassInfo())
 288             {
 289                 // add a '|' to separate this filter from the previous one
 290                 if ( !filter.empty() )
 291                     filter << wxT('|');
 292
 293                 filter << t->GetDescription() << wxT(" (") << t->GetFileFilter() << wxT(") |")
 294                        << t->GetFileFilter();
 295             }
 296
 297             node = node->GetNext();
 298         }
 299     }
 300 #else
 301     wxString filter = docTemplate->GetFileFilter() ;
 302 #endif
 303     wxString tmp = wxFileSelector(_("Save as"),
 304             docTemplate->GetDirectory(),
 305             wxFileNameFromPath(GetFilename()),
 306             docTemplate->GetDefaultExtension(),
 307             filter,
 308             wxFD_SAVE | wxFD_OVERWRITE_PROMPT,
 309             GetDocumentWindow());
 310
 311     if (tmp.empty())
 312         return false;
 313
 314     wxString fileName(tmp);
 315     wxString path, name, ext;
 316     wxSplitPath(fileName, & path, & name, & ext);
 317
 318     if (ext.empty())
 319     {
 320         fileName += wxT(".");
 321         fileName += docTemplate->GetDefaultExtension();
 322     }
 323
 324     SetFilename(fileName);
 325     SetTitle(wxFileNameFromPath(fileName));
 326
 327     // Notify the views that the filename has changed
 328     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 329     while (node)
 330     {
 331         wxView *view = (wxView *)node->GetData();
 332         view->OnChangeFilename();
 333         node = node->GetNext();
 334     }
 335
 336     // Files that were not saved correctly are not added to the FileHistory.
 337     if (!OnSaveDocument(m_documentFile))
 338         return false;
 339
 340    // A file that doesn't use the default extension of its document template cannot be opened
 341    // via the FileHistory, so we do not add it.
 342    if (docTemplate->FileMatchesTemplate(fileName))
 343    {
 344        GetDocumentManager()->AddFileToHistory(fileName);
 345    }
 346    else
 347    {
 348        // The user will probably not be able to open the file again, so
 349        // we could warn about the wrong file-extension here.
 350    }
 351    return true;
 352 }
 353
 354 bool wxDocument::OnSaveDocument(const wxString& file)
 355 {
 356     if ( !file )
 357         return false;
 358
 359     if ( !DoSaveDocument(file) )
 360         return false;
 361
 362     Modify(false);
 363     SetFilename(file);
 364     SetDocumentSaved(true);
 365 #ifdef __WXMAC__
 366     wxFileName fn(file) ;
 367     fn.MacSetDefaultTypeAndCreator() ;
 368 #endif
 369     return true;
 370 }
 371
 372 bool wxDocument::OnOpenDocument(const wxString& file)
 373 {
 374     if (!OnSaveModified())
 375         return false;
 376
 377     if ( !DoOpenDocument(file) )
 378         return false;
 379
 380     SetFilename(file, true);
 381     Modify(false);
 382     m_savedYet = true;
 383
 384     UpdateAllViews();
 385
 386     return true;
 387 }
 388
 389 #if wxUSE_STD_IOSTREAM
 390 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 391 #else
 392 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 393 #endif
 394 {
 395     return stream;
 396 }
 397
 398 #if wxUSE_STD_IOSTREAM
 399 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 400 #else
 401 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 402 #endif
 403 {
 404     return stream;
 405 }
 406
 407 bool wxDocument::Revert()
 408 {
 409     return false;
 410 }
 411
 412
 413 // Get title, or filename if no title, else unnamed
 414 bool wxDocument::GetPrintableName(wxString& buf) const
 415 {
 416     if (!m_documentTitle.empty())
 417     {
 418         buf = m_documentTitle;
 419         return true;
 420     }
 421     else if (!m_documentFile.empty())
 422     {
 423         buf = wxFileNameFromPath(m_documentFile);
 424         return true;
 425     }
 426     else
 427     {
 428         buf = _("unnamed");
 429         return true;
 430     }
 431 }
 432
 433 wxWindow *wxDocument::GetDocumentWindow() const
 434 {
 435     wxView *view = GetFirstView();
 436     if (view)
 437         return view->GetFrame();
 438     else
 439         return wxTheApp->GetTopWindow();
 440 }
 441
 442 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 443 {
 444     return new wxCommandProcessor;
 445 }
 446
 447 // true if safe to close
 448 bool wxDocument::OnSaveModified()
 449 {
 450     if (IsModified())
 451     {
 452         wxString title;
 453         GetPrintableName(title);
 454
 455         wxString msgTitle;
 456         if (!wxTheApp->GetAppName().empty())
 457             msgTitle = wxTheApp->GetAppName();
 458         else
 459             msgTitle = wxString(_("Warning"));
 460
 461         wxString prompt;
 462         prompt.Printf(_("Do you want to save changes to document %s?"),
 463                 (const wxChar *)title);
 464         int res = wxMessageBox(prompt, msgTitle,
 465                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 466                 GetDocumentWindow());
 467         if (res == wxNO)
 468         {
 469             Modify(false);
 470             return true;
 471         }
 472         else if (res == wxYES)
 473             return Save();
 474         else if (res == wxCANCEL)
 475             return false;
 476     }
 477     return true;
 478 }
 479
 480 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 481 {
 482     return true;
 483 }
 484
 485 bool wxDocument::AddView(wxView *view)
 486 {
 487     if (!m_documentViews.Member(view))
 488     {
 489         m_documentViews.Append(view);
 490         OnChangedViewList();
 491     }
 492     return true;
 493 }
 494
 495 bool wxDocument::RemoveView(wxView *view)
 496 {
 497     (void)m_documentViews.DeleteObject(view);
 498     OnChangedViewList();
 499     return true;
 500 }
 501
 502 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 503 {
 504     if (GetDocumentTemplate()->CreateView(this, flags))
 505         return true;
 506     else
 507         return false;
 508 }
 509
 510 // Called after a view is added or removed.
 511 // The default implementation deletes the document if
 512 // there are no more views.
 513 void wxDocument::OnChangedViewList()
 514 {
 515     if (m_documentViews.GetCount() == 0)
 516     {
 517         if (OnSaveModified())
 518         {
 519             delete this;
 520         }
 521     }
 522 }
 523
 524 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 525 {
 526     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 527     while (node)
 528     {
 529         wxView *view = (wxView *)node->GetData();
 530         if (view != sender)
 531             view->OnUpdate(sender, hint);
 532         node = node->GetNext();
 533     }
 534 }
 535
 536 void wxDocument::NotifyClosing()
 537 {
 538     wxList::compatibility_iterator node = m_documentViews.GetFirst();
 539     while (node)
 540     {
 541         wxView *view = (wxView *)node->GetData();
 542         view->OnClosingDocument();
 543         node = node->GetNext();
 544     }
 545 }
 546
 547 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 548 {
 549     m_documentFile = filename;
 550     if ( notifyViews )
 551     {
 552         // Notify the views that the filename has changed
 553         wxList::compatibility_iterator node = m_documentViews.GetFirst();
 554         while (node)
 555         {
 556             wxView *view = (wxView *)node->GetData();
 557             view->OnChangeFilename();
 558             node = node->GetNext();
 559         }
 560     }
 561 }
 562
 563 bool wxDocument::DoSaveDocument(const wxString& file)
 564 {
 565     wxString msgTitle;
 566     if (!wxTheApp->GetAppName().empty())
 567         msgTitle = wxTheApp->GetAppName();
 568     else
 569         msgTitle = wxString(_("File error"));
 570
 571 #if wxUSE_STD_IOSTREAM
 572     wxSTD ofstream store(file.mb_str(), wxSTD ios::binary);
 573     if (store.fail() || store.bad())
 574 #else
 575     wxFileOutputStream store(file);
 576     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 577 #endif
 578     {
 579         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 580                            GetDocumentWindow());
 581         // Saving error
 582         return false;
 583     }
 584     if (!SaveObject(store))
 585     {
 586         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 587                            GetDocumentWindow());
 588         // Saving error
 589         return false;
 590     }
 591
 592     return true;
 593 }
 594
 595 bool wxDocument::DoOpenDocument(const wxString& file)
 596 {
 597 #if wxUSE_STD_IOSTREAM
 598     wxSTD ifstream store(file.mb_str(), wxSTD ios::binary);
 599     if (!store.fail() && !store.bad())
 600 #else
 601     wxFileInputStream store(file);
 602     if (store.GetLastError() == wxSTREAM_NO_ERROR)
 603 #endif
 604     {
 605 #if wxUSE_STD_IOSTREAM
 606         LoadObject(store);
 607         if ( !!store || store.eof() )
 608 #else
 609         int res = LoadObject(store).GetLastError();
 610         if ( res == wxSTREAM_NO_ERROR || res == wxSTREAM_EOF )
 611 #endif
 612             return true;
 613     }
 614
 615     wxLogError(_("Sorry, could not open this file."));
 616     return false;
 617 }
 618
 619
 620 // ----------------------------------------------------------------------------
 621 // Document view
 622 // ----------------------------------------------------------------------------
 623
 624 wxView::wxView()
 625 {
 626     m_viewDocument = (wxDocument*) NULL;
 627
 628     m_viewFrame = (wxFrame *) NULL;
 629 }
 630
 631 wxView::~wxView()
 632 {
 633     GetDocumentManager()->ActivateView(this, false);
 634     m_viewDocument->RemoveView(this);
 635 }
 636
 637 // Extend event processing to search the document's event table
 638 bool wxView::ProcessEvent(wxEvent& event)
 639 {
 640     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 641         return wxEvtHandler::ProcessEvent(event);
 642
 643     return true;
 644 }
 645
 646 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 647 {
 648 }
 649
 650 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 651 {
 652     OnDraw(dc);
 653 }
 654
 655 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 656 {
 657 }
 658
 659 void wxView::OnChangeFilename()
 660 {
 661     // GetFrame can return wxWindow rather than wxTopLevelWindow due to
 662     // generic MDI implementation so use SetLabel rather than SetTitle.
 663     // It should cause SetTitle() for top level windows.
 664     wxWindow *win = GetFrame();
 665     if (!win) return;
 666
 667     wxDocument *doc = GetDocument();
 668     if (!doc) return;
 669
 670     wxString name;
 671     doc->GetPrintableName(name);
 672     win->SetLabel(name);
 673 }
 674
 675 void wxView::SetDocument(wxDocument *doc)
 676 {
 677     m_viewDocument = doc;
 678     if (doc)
 679         doc->AddView(this);
 680 }
 681
 682 bool wxView::Close(bool deleteWindow)
 683 {
 684     if (OnClose(deleteWindow))
 685         return true;
 686     else
 687         return false;
 688 }
 689
 690 void wxView::Activate(bool activate)
 691 {
 692     if (GetDocument() && GetDocumentManager())
 693     {
 694         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 695         GetDocumentManager()->ActivateView(this, activate);
 696     }
 697 }
 698
 699 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 700 {
 701     return GetDocument() ? GetDocument()->Close() : true;
 702 }
 703
 704 #if wxUSE_PRINTING_ARCHITECTURE
 705 wxPrintout *wxView::OnCreatePrintout()
 706 {
 707     return new wxDocPrintout(this);
 708 }
 709 #endif // wxUSE_PRINTING_ARCHITECTURE
 710
 711 // ----------------------------------------------------------------------------
 712 // wxDocTemplate
 713 // ----------------------------------------------------------------------------
 714
 715 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 716                              const wxString& descr,
 717                              const wxString& filter,
 718                              const wxString& dir,
 719                              const wxString& ext,
 720                              const wxString& docTypeName,
 721                              const wxString& viewTypeName,
 722                              wxClassInfo *docClassInfo,
 723                              wxClassInfo *viewClassInfo,
 724                              long flags)
 725 {
 726     m_documentManager = manager;
 727     m_description = descr;
 728     m_directory = dir;
 729     m_defaultExt = ext;
 730     m_fileFilter = filter;
 731     m_flags = flags;
 732     m_docTypeName = docTypeName;
 733     m_viewTypeName = viewTypeName;
 734     m_documentManager->AssociateTemplate(this);
 735
 736     m_docClassInfo = docClassInfo;
 737     m_viewClassInfo = viewClassInfo;
 738 }
 739
 740 wxDocTemplate::~wxDocTemplate()
 741 {
 742     m_documentManager->DisassociateTemplate(this);
 743 }
 744
 745 // Tries to dynamically construct an object of the right class.
 746 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 747 {
 748     wxDocument *doc = DoCreateDocument();
 749     if ( doc == NULL )
 750         return (wxDocument *) NULL;
 751
 752     if (InitDocument(doc, path, flags))
 753     {
 754         return doc;
 755     }
 756     else
 757     {
 758         return (wxDocument *) NULL;
 759     }
 760 }
 761
 762 bool wxDocTemplate::InitDocument(wxDocument* doc, const wxString& path, long flags)
 763 {
 764     doc->SetFilename(path);
 765     doc->SetDocumentTemplate(this);
 766     GetDocumentManager()->AddDocument(doc);
 767     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 768
 769     if (doc->OnCreate(path, flags))
 770         return true;
 771     else
 772     {
 773         if (GetDocumentManager()->GetDocuments().Member(doc))
 774             doc->DeleteAllViews();
 775         return false;
 776     }
 777 }
 778
 779 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 780 {
 781     wxView *view = DoCreateView();
 782     if ( view == NULL )
 783         return (wxView *) NULL;
 784
 785     view->SetDocument(doc);
 786     if (view->OnCreate(doc, flags))
 787     {
 788         return view;
 789     }
 790     else
 791     {
 792         delete view;
 793         return (wxView *) NULL;
 794     }
 795 }
 796
 797 // The default (very primitive) format detection: check is the extension is
 798 // that of the template
 799 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 800 {
 801     wxStringTokenizer parser (GetFileFilter(), wxT(";"));
 802     wxString anything = wxT ("*");
 803     while (parser.HasMoreTokens())
 804     {
 805         wxString filter = parser.GetNextToken();
 806         wxString filterExt = FindExtension (filter);
 807         if ( filter.IsSameAs (anything)    ||
 808              filterExt.IsSameAs (anything) ||
 809              filterExt.IsSameAs (FindExtension (path)) )
 810             return true;
 811     }
 812     return GetDefaultExtension().IsSameAs(FindExtension(path));
 813 }
 814
 815 wxDocument *wxDocTemplate::DoCreateDocument()
 816 {
 817     if (!m_docClassInfo)
 818         return (wxDocument *) NULL;
 819
 820     return (wxDocument *)m_docClassInfo->CreateObject();
 821 }
 822
 823 wxView *wxDocTemplate::DoCreateView()
 824 {
 825     if (!m_viewClassInfo)
 826         return (wxView *) NULL;
 827
 828     return (wxView *)m_viewClassInfo->CreateObject();
 829 }
 830
 831 // ----------------------------------------------------------------------------
 832 // wxDocManager
 833 // ----------------------------------------------------------------------------
 834
 835 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 836     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 837     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 838     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 839     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 840     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 841     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 842     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 843     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 844     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 845
 846     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 847     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 848     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 849     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 850     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 851     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 852     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 853     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 854     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 855
 856 #if wxUSE_PRINTING_ARCHITECTURE
 857     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 858     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 859
 860     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 861     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 862 #endif
 863 END_EVENT_TABLE()
 864
 865 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 866
 867 wxDocManager::wxDocManager(long flags, bool initialize)
 868 {
 869     m_defaultDocumentNameCounter = 1;
 870     m_flags = flags;
 871     m_currentView = (wxView *) NULL;
 872     m_maxDocsOpen = 10000;
 873     m_fileHistory = (wxFileHistory *) NULL;
 874     if (initialize)
 875         Initialize();
 876     sm_docManager = this;
 877 }
 878
 879 wxDocManager::~wxDocManager()
 880 {
 881     Clear();
 882     if (m_fileHistory)
 883         delete m_fileHistory;
 884     sm_docManager = (wxDocManager*) NULL;
 885 }
 886
 887 // closes the specified document
 888 bool wxDocManager::CloseDocument(wxDocument* doc, bool force)
 889 {
 890     if (doc->Close() || force)
 891     {
 892         // Implicitly deletes the document when
 893         // the last view is deleted
 894         doc->DeleteAllViews();
 895
 896         // Check we're really deleted
 897         if (m_docs.Member(doc))
 898             delete doc;
 899
 900         return true;
 901     }
 902     return false;
 903 }
 904
 905 bool wxDocManager::CloseDocuments(bool force)
 906 {
 907     wxList::compatibility_iterator node = m_docs.GetFirst();
 908     while (node)
 909     {
 910         wxDocument *doc = (wxDocument *)node->GetData();
 911         wxList::compatibility_iterator next = node->GetNext();
 912
 913         if (!CloseDocument(doc, force))
 914             return false;
 915
 916         // This assumes that documents are not connected in
 917         // any way, i.e. deleting one document does NOT
 918         // delete another.
 919         node = next;
 920     }
 921     return true;
 922 }
 923
 924 bool wxDocManager::Clear(bool force)
 925 {
 926     if (!CloseDocuments(force))
 927         return false;
 928
 929     m_currentView = NULL;
 930
 931     wxList::compatibility_iterator node = m_templates.GetFirst();
 932     while (node)
 933     {
 934         wxDocTemplate *templ = (wxDocTemplate*) node->GetData();
 935         wxList::compatibility_iterator next = node->GetNext();
 936         delete templ;
 937         node = next;
 938     }
 939     return true;
 940 }
 941
 942 bool wxDocManager::Initialize()
 943 {
 944     m_fileHistory = OnCreateFileHistory();
 945     return true;
 946 }
 947
 948 wxFileHistory *wxDocManager::OnCreateFileHistory()
 949 {
 950     return new wxFileHistory;
 951 }
 952
 953 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 954 {
 955     wxDocument *doc = GetCurrentDocument();
 956     if (!doc)
 957         return;
 958     if (doc->Close())
 959     {
 960         doc->DeleteAllViews();
 961         if (m_docs.Member(doc))
 962             delete doc;
 963     }
 964 }
 965
 966 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 967 {
 968     CloseDocuments(false);
 969 }
 970
 971 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 972 {
 973     CreateDocument( wxEmptyString, wxDOC_NEW );
 974 }
 975
 976 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 977 {
 978     if ( !CreateDocument( wxEmptyString, 0) )
 979     {
 980         OnOpenFileFailure();
 981     }
 982 }
 983
 984 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 985 {
 986     wxDocument *doc = GetCurrentDocument();
 987     if (!doc)
 988         return;
 989     doc->Revert();
 990 }
 991
 992 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 993 {
 994     wxDocument *doc = GetCurrentDocument();
 995     if (!doc)
 996         return;
 997     doc->Save();
 998 }
 999
1000 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
1001 {
1002     wxDocument *doc = GetCurrentDocument();
1003     if (!doc)
1004         return;
1005     doc->SaveAs();
1006 }
1007
1008 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
1009 {
1010 #if wxUSE_PRINTING_ARCHITECTURE
1011     wxView *view = GetCurrentView();
1012     if (!view)
1013         return;
1014
1015     wxPrintout *printout = view->OnCreatePrintout();
1016     if (printout)
1017     {
1018         wxPrinter printer;
1019         printer.Print(view->GetFrame(), printout, true);
1020
1021         delete printout;
1022     }
1023 #endif // wxUSE_PRINTING_ARCHITECTURE
1024 }
1025
1026 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
1027 {
1028 #if wxUSE_PRINTING_ARCHITECTURE
1029     wxView *view = GetCurrentView();
1030     if (!view)
1031         return;
1032
1033     wxPrintout *printout = view->OnCreatePrintout();
1034     if (printout)
1035     {
1036         // Pass two printout objects: for preview, and possible printing.
1037         wxPrintPreviewBase *preview = new wxPrintPreview(printout, view->OnCreatePrintout());
1038         if ( !preview->Ok() )
1039         {
1040             delete preview;
1041             wxMessageBox( _("Sorry, print preview needs a printer to be installed.") );
1042             return;
1043         }
1044
1045         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
1046                 wxPoint(100, 100), wxSize(600, 650));
1047         frame->Centre(wxBOTH);
1048         frame->Initialize();
1049         frame->Show(true);
1050     }
1051 #endif // wxUSE_PRINTING_ARCHITECTURE
1052 }
1053
1054 void wxDocManager::OnUndo(wxCommandEvent& event)
1055 {
1056     wxDocument *doc = GetCurrentDocument();
1057     if (!doc)
1058         return;
1059     if (doc->GetCommandProcessor())
1060         doc->GetCommandProcessor()->Undo();
1061     else
1062         event.Skip();
1063 }
1064
1065 void wxDocManager::OnRedo(wxCommandEvent& event)
1066 {
1067     wxDocument *doc = GetCurrentDocument();
1068     if (!doc)
1069         return;
1070     if (doc->GetCommandProcessor())
1071         doc->GetCommandProcessor()->Redo();
1072     else
1073         event.Skip();
1074 }
1075
1076 // Handlers for UI update commands
1077
1078 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
1079 {
1080     event.Enable( true );
1081 }
1082
1083 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
1084 {
1085     wxDocument *doc = GetCurrentDocument();
1086     event.Enable( (doc != (wxDocument*) NULL) );
1087 }
1088
1089 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
1090 {
1091     wxDocument *doc = GetCurrentDocument();
1092     event.Enable( (doc != (wxDocument*) NULL) );
1093 }
1094
1095 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
1096 {
1097     event.Enable( true );
1098 }
1099
1100 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
1101 {
1102     wxDocument *doc = GetCurrentDocument();
1103     event.Enable( doc && doc->IsModified() );
1104 }
1105
1106 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
1107 {
1108     wxDocument *doc = GetCurrentDocument();
1109     event.Enable( (doc != (wxDocument*) NULL) );
1110 }
1111
1112 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
1113 {
1114     wxDocument *doc = GetCurrentDocument();
1115     if (!doc)
1116         event.Enable(false);
1117     else if (!doc->GetCommandProcessor())
1118         event.Skip();
1119     else
1120     {
1121         event.Enable( doc->GetCommandProcessor()->CanUndo() );
1122         doc->GetCommandProcessor()->SetMenuStrings();
1123     }
1124 }
1125
1126 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
1127 {
1128     wxDocument *doc = GetCurrentDocument();
1129     if (!doc)
1130         event.Enable(false);
1131     else if (!doc->GetCommandProcessor())
1132         event.Skip();
1133     else
1134     {
1135         event.Enable( doc->GetCommandProcessor()->CanRedo() );
1136         doc->GetCommandProcessor()->SetMenuStrings();
1137     }
1138 }
1139
1140 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1141 {
1142     wxDocument *doc = GetCurrentDocument();
1143     event.Enable( (doc != (wxDocument*) NULL) );
1144 }
1145
1146 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1147 {
1148     wxDocument *doc = GetCurrentDocument();
1149     event.Enable( (doc != (wxDocument*) NULL) );
1150 }
1151
1152 wxView *wxDocManager::GetCurrentView() const
1153 {
1154     if (m_currentView)
1155         return m_currentView;
1156     if (m_docs.GetCount() == 1)
1157     {
1158         wxDocument* doc = (wxDocument*) m_docs.GetFirst()->GetData();
1159         return doc->GetFirstView();
1160     }
1161     return (wxView *) NULL;
1162 }
1163
1164 // Extend event processing to search the view's event table
1165 bool wxDocManager::ProcessEvent(wxEvent& event)
1166 {
1167     wxView* view = GetCurrentView();
1168     if (view)
1169     {
1170         if (view->ProcessEvent(event))
1171             return true;
1172     }
1173     return wxEvtHandler::ProcessEvent(event);
1174 }
1175
1176 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1177 {
1178     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1179     int               n = 0;
1180
1181     for (size_t i = 0; i < m_templates.GetCount(); i++)
1182     {
1183         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1184         if (temp->IsVisible())
1185         {
1186             templates[n] = temp;
1187             n ++;
1188         }
1189     }
1190     if (n == 0)
1191     {
1192         delete[] templates;
1193         return (wxDocument *) NULL;
1194     }
1195
1196     wxDocument* docToClose = NULL;
1197
1198     // If we've reached the max number of docs, close the
1199     // first one.
1200     if ( (int)GetDocuments().GetCount() >= m_maxDocsOpen )
1201     {
1202         wxDocument *doc = (wxDocument *)GetDocuments().GetFirst()->GetData();
1203         docToClose = doc;
1204     }
1205
1206     // New document: user chooses a template, unless there's only one.
1207     if (flags & wxDOC_NEW)
1208     {
1209         if (n == 1)
1210         {
1211             if (docToClose)
1212             {
1213                 if (!CloseDocument(docToClose, false))
1214                 {
1215                     delete[] templates;
1216                     return NULL;
1217                 }
1218             }
1219
1220             wxDocTemplate *temp = templates[0];
1221             delete[] templates;
1222             wxDocument *newDoc = temp->CreateDocument(path, flags);
1223
1224             if (newDoc)
1225             {
1226                 newDoc->SetDocumentName(temp->GetDocumentName());
1227                 newDoc->SetDocumentTemplate(temp);
1228                 if (!newDoc->OnNewDocument() )
1229                 {
1230                      // Document is implicitly deleted by DeleteAllViews
1231                      newDoc->DeleteAllViews();
1232                      return NULL;
1233                 }
1234             }
1235             return newDoc;
1236         }
1237
1238         wxDocTemplate *temp = SelectDocumentType(templates, n);
1239         delete[] templates;
1240         if (temp)
1241         {
1242             if (docToClose)
1243             {
1244                 if (!CloseDocument(docToClose, false))
1245                 {
1246                     return NULL;
1247                 }
1248             }
1249
1250             wxDocument *newDoc = temp->CreateDocument(path, flags);
1251
1252             if (newDoc)
1253             {
1254                 newDoc->SetDocumentName(temp->GetDocumentName());
1255                 newDoc->SetDocumentTemplate(temp);
1256                 if (!newDoc->OnNewDocument() )
1257                 {
1258                      // Document is implicitly deleted by DeleteAllViews
1259                      newDoc->DeleteAllViews();
1260                      return NULL;
1261                 }
1262             }
1263             return newDoc;
1264         }
1265         else
1266             return (wxDocument *) NULL;
1267     }
1268
1269     // Existing document
1270     wxDocTemplate *temp;
1271
1272     wxString path2 = path;
1273
1274     if (flags & wxDOC_SILENT)
1275     {
1276         temp = FindTemplateForPath(path2);
1277         if (!temp)
1278         {
1279             // Since we do not add files with non-default extensions to the FileHistory this
1280             // can only happen if the application changes the allowed templates in runtime.
1281             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1282                                 _("Open File"),
1283                                wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1284         }
1285     }
1286     else
1287         temp = SelectDocumentPath(templates, n, path2, flags);
1288
1289     delete[] templates;
1290
1291     if (temp)
1292     {
1293         if (docToClose)
1294         {
1295             if (!CloseDocument(docToClose, false))
1296             {
1297                 return NULL;
1298             }
1299         }
1300
1301         //see if this file is already open
1302         for (size_t i = 0; i < GetDocuments().GetCount(); ++i)
1303         {
1304             wxDocument* currentDoc = (wxDocument*)(GetDocuments().Item(i)->GetData());
1305 #ifdef __WXMSW__
1306             //file paths are case-insensitive on Windows
1307             if (path2.CmpNoCase(currentDoc->GetFilename()) == 0)
1308 #else
1309             if (path2.Cmp(currentDoc->GetFilename()) == 0)
1310 #endif
1311             {
1312                 //file already open. Just activate it and return
1313                 if (currentDoc->GetFirstView())
1314                 {
1315                     ActivateView(currentDoc->GetFirstView(), true);
1316                     if (currentDoc->GetDocumentWindow())
1317                         currentDoc->GetDocumentWindow()->SetFocus();
1318                     return currentDoc;
1319                 }
1320             }
1321         }
1322
1323         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1324         if (newDoc)
1325         {
1326             newDoc->SetDocumentName(temp->GetDocumentName());
1327             newDoc->SetDocumentTemplate(temp);
1328             if (!newDoc->OnOpenDocument(path2))
1329             {
1330                 newDoc->DeleteAllViews();
1331                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1332                 return (wxDocument *) NULL;
1333             }
1334             // A file that doesn't use the default extension of its document
1335             // template cannot be opened via the FileHistory, so we do not
1336             // add it.
1337             if (temp->FileMatchesTemplate(path2))
1338                 AddFileToHistory(path2);
1339         }
1340         return newDoc;
1341     }
1342
1343     return (wxDocument *) NULL;
1344 }
1345
1346 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1347 {
1348     wxDocTemplate   **templates = new wxDocTemplate *[m_templates.GetCount()];
1349     int               n =0;
1350
1351     for (size_t i = 0; i < m_templates.GetCount(); i++)
1352     {
1353         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Item(i)->GetData());
1354         if (temp->IsVisible())
1355         {
1356             if (temp->GetDocumentName() == doc->GetDocumentName())
1357             {
1358                 templates[n] = temp;
1359                 n ++;
1360             }
1361         }
1362     }
1363     if (n == 0)
1364     {
1365         delete[] templates;
1366         return (wxView *) NULL;
1367     }
1368     if (n == 1)
1369     {
1370         wxDocTemplate *temp = templates[0];
1371         delete[] templates;
1372         wxView *view = temp->CreateView(doc, flags);
1373         if (view)
1374             view->SetViewName(temp->GetViewName());
1375         return view;
1376     }
1377
1378     wxDocTemplate *temp = SelectViewType(templates, n);
1379     delete[] templates;
1380     if (temp)
1381     {
1382         wxView *view = temp->CreateView(doc, flags);
1383         if (view)
1384             view->SetViewName(temp->GetViewName());
1385         return view;
1386     }
1387     else
1388         return (wxView *) NULL;
1389 }
1390
1391 // Not yet implemented
1392 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1393 {
1394 }
1395
1396 // Not yet implemented
1397 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1398 {
1399     return false;
1400 }
1401
1402 wxDocument *wxDocManager::GetCurrentDocument() const
1403 {
1404     wxView *view = GetCurrentView();
1405     if (view)
1406         return view->GetDocument();
1407     else
1408         return (wxDocument *) NULL;
1409 }
1410
1411 // Make a default document name
1412 bool wxDocManager::MakeDefaultName(wxString& name)
1413 {
1414     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1415     m_defaultDocumentNameCounter++;
1416
1417     return true;
1418 }
1419
1420 // Make a frame title (override this to do something different)
1421 // If docName is empty, a document is not currently active.
1422 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1423 {
1424     wxString appName = wxTheApp->GetAppName();
1425     wxString title;
1426     if (!doc)
1427         title = appName;
1428     else
1429     {
1430         wxString docName;
1431         doc->GetPrintableName(docName);
1432         title = docName + wxString(_(" - ")) + appName;
1433     }
1434     return title;
1435 }
1436
1437
1438 // Not yet implemented
1439 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1440 {
1441     return (wxDocTemplate *) NULL;
1442 }
1443
1444 // File history management
1445 void wxDocManager::AddFileToHistory(const wxString& file)
1446 {
1447     if (m_fileHistory)
1448         m_fileHistory->AddFileToHistory(file);
1449 }
1450
1451 void wxDocManager::RemoveFileFromHistory(size_t i)
1452 {
1453     if (m_fileHistory)
1454         m_fileHistory->RemoveFileFromHistory(i);
1455 }
1456
1457 wxString wxDocManager::GetHistoryFile(size_t i) const
1458 {
1459     wxString histFile;
1460
1461     if (m_fileHistory)
1462         histFile = m_fileHistory->GetHistoryFile(i);
1463
1464     return histFile;
1465 }
1466
1467 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1468 {
1469     if (m_fileHistory)
1470         m_fileHistory->UseMenu(menu);
1471 }
1472
1473 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1474 {
1475     if (m_fileHistory)
1476         m_fileHistory->RemoveMenu(menu);
1477 }
1478
1479 #if wxUSE_CONFIG
1480 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1481 {
1482     if (m_fileHistory)
1483         m_fileHistory->Load(config);
1484 }
1485
1486 void wxDocManager::FileHistorySave(wxConfigBase& config)
1487 {
1488     if (m_fileHistory)
1489         m_fileHistory->Save(config);
1490 }
1491 #endif
1492
1493 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1494 {
1495     if (m_fileHistory)
1496         m_fileHistory->AddFilesToMenu(menu);
1497 }
1498
1499 void wxDocManager::FileHistoryAddFilesToMenu()
1500 {
1501     if (m_fileHistory)
1502         m_fileHistory->AddFilesToMenu();
1503 }
1504
1505 size_t wxDocManager::GetHistoryFilesCount() const
1506 {
1507     return m_fileHistory ? m_fileHistory->GetCount() : 0;
1508 }
1509
1510
1511 // Find out the document template via matching in the document file format
1512 // against that of the template
1513 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1514 {
1515     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1516
1517     // Find the template which this extension corresponds to
1518     for (size_t i = 0; i < m_templates.GetCount(); i++)
1519     {
1520         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Item(i)->GetData();
1521         if ( temp->FileMatchesTemplate(path) )
1522         {
1523             theTemplate = temp;
1524             break;
1525         }
1526     }
1527     return theTemplate;
1528 }
1529
1530 // Try to get a more suitable parent frame than the top window,
1531 // for selection dialogs. Otherwise you may get an unexpected
1532 // window being activated when a dialog is shown.
1533 static wxWindow* wxFindSuitableParent()
1534 {
1535     wxWindow* parent = wxTheApp->GetTopWindow();
1536
1537     wxWindow* focusWindow = wxWindow::FindFocus();
1538     if (focusWindow)
1539     {
1540         while (focusWindow &&
1541                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1542                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1543
1544             focusWindow = focusWindow->GetParent();
1545
1546         if (focusWindow)
1547             parent = focusWindow;
1548     }
1549     return parent;
1550 }
1551
1552 // Prompts user to open a file, using file specs in templates.
1553 // Must extend the file selector dialog or implement own; OR
1554 // match the extension to the template extension.
1555
1556 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1557 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1558                                                 int noTemplates,
1559 #else
1560                                                 int WXUNUSED(noTemplates),
1561 #endif
1562                                                 wxString& path,
1563                                                 long WXUNUSED(flags),
1564                                                 bool WXUNUSED(save))
1565 {
1566     // We can only have multiple filters in Windows and GTK
1567 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1568     wxString descrBuf;
1569
1570     int i;
1571     for (i = 0; i < noTemplates; i++)
1572     {
1573         if (templates[i]->IsVisible())
1574         {
1575             // add a '|' to separate this filter from the previous one
1576             if ( !descrBuf.empty() )
1577                 descrBuf << wxT('|');
1578
1579             descrBuf << templates[i]->GetDescription()
1580                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1581                 << templates[i]->GetFileFilter();
1582         }
1583     }
1584 #else
1585     wxString descrBuf = wxT("*.*");
1586 #endif
1587
1588     int FilterIndex = -1;
1589
1590     wxWindow* parent = wxFindSuitableParent();
1591
1592     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1593                                         m_lastDirectory,
1594                                         wxEmptyString,
1595                                         &FilterIndex,
1596                                         descrBuf,
1597                                         0,
1598                                         parent);
1599
1600     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1601     if (!pathTmp.empty())
1602     {
1603         if (!wxFileExists(pathTmp))
1604         {
1605             wxString msgTitle;
1606             if (!wxTheApp->GetAppName().empty())
1607                 msgTitle = wxTheApp->GetAppName();
1608             else
1609                 msgTitle = wxString(_("File error"));
1610
1611             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1612                 parent);
1613
1614             path = wxEmptyString;
1615             return (wxDocTemplate *) NULL;
1616         }
1617         m_lastDirectory = wxPathOnly(pathTmp);
1618
1619         path = pathTmp;
1620
1621         // first choose the template using the extension, if this fails (i.e.
1622         // wxFileSelectorEx() didn't fill it), then use the path
1623         if ( FilterIndex != -1 )
1624             theTemplate = templates[FilterIndex];
1625         if ( !theTemplate )
1626             theTemplate = FindTemplateForPath(path);
1627         if ( !theTemplate )
1628         {
1629             // Since we do not add files with non-default extensions to the FileHistory this
1630             // can only happen if the application changes the allowed templates in runtime.
1631             (void)wxMessageBox(_("Sorry, the format for this file is unknown."),
1632                                 _("Open File"),
1633                                 wxOK | wxICON_EXCLAMATION, wxFindSuitableParent());
1634         }
1635     }
1636     else
1637     {
1638         path = wxEmptyString;
1639     }
1640
1641     return theTemplate;
1642 }
1643
1644 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1645                                                 int noTemplates, bool sort)
1646 {
1647     wxArrayString strings;
1648     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1649     int i;
1650     int n = 0;
1651
1652     for (i = 0; i < noTemplates; i++)
1653     {
1654         if (templates[i]->IsVisible())
1655         {
1656             int j;
1657             bool want = true;
1658             for (j = 0; j < n; j++)
1659             {
1660                 //filter out NOT unique documents + view combinations
1661                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1662                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1663                    )
1664                     want = false;
1665             }
1666
1667             if ( want )
1668             {
1669                 strings.Add(templates[i]->m_description);
1670
1671                 data[n] = templates[i];
1672                 n ++;
1673             }
1674         }
1675     }  // for
1676
1677     if (sort)
1678     {
1679         strings.Sort(); // ascending sort
1680         // Yes, this will be slow, but template lists
1681         // are typically short.
1682         int j;
1683         n = strings.Count();
1684         for (i = 0; i < n; i++)
1685         {
1686             for (j = 0; j < noTemplates; j++)
1687             {
1688                 if (strings[i] == templates[j]->m_description)
1689                     data[i] = templates[j];
1690             }
1691         }
1692     }
1693
1694     wxDocTemplate *theTemplate;
1695
1696     switch ( n )
1697     {
1698         case 0:
1699             // no visible templates, hence nothing to choose from
1700             theTemplate = NULL;
1701             break;
1702
1703         case 1:
1704             // don't propose the user to choose if he heas no choice
1705             theTemplate = data[0];
1706             break;
1707
1708         default:
1709             // propose the user to choose one of several
1710             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1711                           (
1712                             _("Select a document template"),
1713                             _("Templates"),
1714                             strings,
1715                             (void **)data,
1716                             wxFindSuitableParent()
1717                           );
1718     }
1719
1720     delete[] data;
1721
1722     return theTemplate;
1723 }
1724
1725 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1726                                             int noTemplates, bool sort)
1727 {
1728     wxArrayString strings;
1729     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1730     int i;
1731     int n = 0;
1732
1733     for (i = 0; i < noTemplates; i++)
1734     {
1735         wxDocTemplate *templ = templates[i];
1736         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1737         {
1738             int j;
1739             bool want = true;
1740             for (j = 0; j < n; j++)
1741             {
1742                 //filter out NOT unique views
1743                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1744                     want = false;
1745             }
1746
1747             if ( want )
1748             {
1749                 strings.Add(templ->m_viewTypeName);
1750                 data[n] = templ;
1751                 n ++;
1752             }
1753         }
1754     }
1755
1756     if (sort)
1757     {
1758         strings.Sort(); // ascending sort
1759         // Yes, this will be slow, but template lists
1760         // are typically short.
1761         int j;
1762         n = strings.Count();
1763         for (i = 0; i < n; i++)
1764         {
1765             for (j = 0; j < noTemplates; j++)
1766             {
1767                 if (strings[i] == templates[j]->m_viewTypeName)
1768                     data[i] = templates[j];
1769             }
1770         }
1771     }
1772
1773     wxDocTemplate *theTemplate;
1774
1775     // the same logic as above
1776     switch ( n )
1777     {
1778         case 0:
1779             theTemplate = (wxDocTemplate *)NULL;
1780             break;
1781
1782         case 1:
1783             theTemplate = data[0];
1784             break;
1785
1786         default:
1787             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1788                           (
1789                             _("Select a document view"),
1790                             _("Views"),
1791                             strings,
1792                             (void **)data,
1793                             wxFindSuitableParent()
1794                           );
1795
1796     }
1797
1798     delete[] data;
1799     return theTemplate;
1800 }
1801
1802 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1803 {
1804     if (!m_templates.Member(temp))
1805         m_templates.Append(temp);
1806 }
1807
1808 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1809 {
1810     m_templates.DeleteObject(temp);
1811 }
1812
1813 // Add and remove a document from the manager's list
1814 void wxDocManager::AddDocument(wxDocument *doc)
1815 {
1816     if (!m_docs.Member(doc))
1817         m_docs.Append(doc);
1818 }
1819
1820 void wxDocManager::RemoveDocument(wxDocument *doc)
1821 {
1822     m_docs.DeleteObject(doc);
1823 }
1824
1825 // Views or windows should inform the document manager
1826 // when a view is going in or out of focus
1827 void wxDocManager::ActivateView(wxView *view, bool activate)
1828 {
1829     if ( activate )
1830     {
1831         m_currentView = view;
1832     }
1833     else // deactivate
1834     {
1835         if ( m_currentView == view )
1836         {
1837             // don't keep stale pointer
1838             m_currentView = (wxView *) NULL;
1839         }
1840     }
1841 }
1842
1843 // ----------------------------------------------------------------------------
1844 // Default document child frame
1845 // ----------------------------------------------------------------------------
1846
1847 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1848     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1849     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1850 END_EVENT_TABLE()
1851
1852 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1853                                  wxView *view,
1854                                  wxFrame *frame,
1855                                  wxWindowID id,
1856                                  const wxString& title,
1857                                  const wxPoint& pos,
1858                                  const wxSize& size,
1859                                  long style,
1860                                  const wxString& name)
1861                : wxFrame(frame, id, title, pos, size, style, name)
1862 {
1863     m_childDocument = doc;
1864     m_childView = view;
1865     if (view)
1866         view->SetFrame(this);
1867 }
1868
1869 // Extend event processing to search the view's event table
1870 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1871 {
1872     if (m_childView)
1873         m_childView->Activate(true);
1874
1875     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1876     {
1877         // Only hand up to the parent if it's a menu command
1878         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1879             return wxEvtHandler::ProcessEvent(event);
1880         else
1881             return true;
1882     }
1883     else
1884         return true;
1885 }
1886
1887 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1888 {
1889     wxFrame::OnActivate(event);
1890
1891     if (m_childView)
1892         m_childView->Activate(event.GetActive());
1893 }
1894
1895 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1896 {
1897     if (m_childView)
1898     {
1899         bool ans = event.CanVeto()
1900                     ? m_childView->Close(false) // false means don't delete associated window
1901                     : true; // Must delete.
1902
1903         if (ans)
1904         {
1905             m_childView->Activate(false);
1906             delete m_childView;
1907             m_childView = (wxView *) NULL;
1908             m_childDocument = (wxDocument *) NULL;
1909
1910             this->Destroy();
1911         }
1912         else
1913             event.Veto();
1914     }
1915     else
1916         event.Veto();
1917 }
1918
1919 // ----------------------------------------------------------------------------
1920 // Default parent frame
1921 // ----------------------------------------------------------------------------
1922
1923 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1924     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1925     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1926     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1927 END_EVENT_TABLE()
1928
1929 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1930                                    wxFrame *frame,
1931                                    wxWindowID id,
1932                                    const wxString& title,
1933                                    const wxPoint& pos,
1934                                    const wxSize& size,
1935                                    long style,
1936                                    const wxString& name)
1937                 : wxFrame(frame, id, title, pos, size, style, name)
1938 {
1939     m_docManager = manager;
1940 }
1941
1942 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1943 {
1944     Close();
1945 }
1946
1947 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1948 {
1949     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1950     wxString filename(m_docManager->GetHistoryFile(n));
1951     if ( !filename.empty() )
1952     {
1953         // verify that the file exists before doing anything else
1954         if ( wxFile::Exists(filename) )
1955         {
1956             // try to open it
1957             if (!m_docManager->CreateDocument(filename, wxDOC_SILENT))
1958             {
1959                 // remove the file from the MRU list. The user should already be notified.
1960                 m_docManager->RemoveFileFromHistory(n);
1961
1962                 wxLogError(_("The file '%s' couldn't be opened.\nIt has been removed from the most recently used files list."),
1963                        filename.c_str());
1964             }
1965         }
1966         else
1967         {
1968             // remove the bogus filename from the MRU list and notify the user
1969             // about it
1970             m_docManager->RemoveFileFromHistory(n);
1971
1972             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1973                        filename.c_str());
1974         }
1975     }
1976 }
1977
1978 // Extend event processing to search the view's event table
1979 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1980 {
1981     // Try the document manager, then do default processing
1982     if (!m_docManager || !m_docManager->ProcessEvent(event))
1983         return wxEvtHandler::ProcessEvent(event);
1984     else
1985         return true;
1986 }
1987
1988 // Define the behaviour for the frame closing
1989 // - must delete all frames except for the main one.
1990 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1991 {
1992     if (m_docManager->Clear(!event.CanVeto()))
1993     {
1994         this->Destroy();
1995     }
1996     else
1997         event.Veto();
1998 }
1999
2000 #if wxUSE_PRINTING_ARCHITECTURE
2001
2002 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
2003              : wxPrintout(title)
2004 {
2005     m_printoutView = view;
2006 }
2007
2008 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
2009 {
2010     wxDC *dc = GetDC();
2011
2012     // Get the logical pixels per inch of screen and printer
2013     int ppiScreenX, ppiScreenY;
2014     GetPPIScreen(&ppiScreenX, &ppiScreenY);
2015     wxUnusedVar(ppiScreenY);
2016     int ppiPrinterX, ppiPrinterY;
2017     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
2018     wxUnusedVar(ppiPrinterY);
2019
2020     // This scales the DC so that the printout roughly represents the
2021     // the screen scaling. The text point size _should_ be the right size
2022     // but in fact is too small for some reason. This is a detail that will
2023     // need to be addressed at some point but can be fudged for the
2024     // moment.
2025     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
2026
2027     // Now we have to check in case our real page size is reduced
2028     // (e.g. because we're drawing to a print preview memory DC)
2029     int pageWidth, pageHeight;
2030     int w, h;
2031     dc->GetSize(&w, &h);
2032     GetPageSizePixels(&pageWidth, &pageHeight);
2033     wxUnusedVar(pageHeight);
2034
2035     // If printer pageWidth == current DC width, then this doesn't
2036     // change. But w might be the preview bitmap width, so scale down.
2037     float overallScale = scale * (float)(w/(float)pageWidth);
2038     dc->SetUserScale(overallScale, overallScale);
2039
2040     if (m_printoutView)
2041     {
2042         m_printoutView->OnDraw(dc);
2043     }
2044     return true;
2045 }
2046
2047 bool wxDocPrintout::HasPage(int pageNum)
2048 {
2049     return (pageNum == 1);
2050 }
2051
2052 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
2053 {
2054     if (!wxPrintout::OnBeginDocument(startPage, endPage))
2055         return false;
2056
2057     return true;
2058 }
2059
2060 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
2061 {
2062     *minPage = 1;
2063     *maxPage = 1;
2064     *selPageFrom = 1;
2065     *selPageTo = 1;
2066 }
2067
2068 #endif // wxUSE_PRINTING_ARCHITECTURE
2069
2070 // ----------------------------------------------------------------------------
2071 // File history processor
2072 // ----------------------------------------------------------------------------
2073
2074 static inline wxChar* MYcopystring(const wxString& s)
2075 {
2076     wxChar* copy = new wxChar[s.length() + 1];
2077     return wxStrcpy(copy, s.c_str());
2078 }
2079
2080 static inline wxChar* MYcopystring(const wxChar* s)
2081 {
2082     wxChar* copy = new wxChar[wxStrlen(s) + 1];
2083     return wxStrcpy(copy, s);
2084 }
2085
2086 wxFileHistory::wxFileHistory(size_t maxFiles, wxWindowID idBase)
2087 {
2088     m_fileMaxFiles = maxFiles;
2089     m_idBase = idBase;
2090     m_fileHistoryN = 0;
2091     m_fileHistory = new wxChar *[m_fileMaxFiles];
2092 }
2093
2094 wxFileHistory::~wxFileHistory()
2095 {
2096     size_t i;
2097     for (i = 0; i < m_fileHistoryN; i++)
2098         delete[] m_fileHistory[i];
2099     delete[] m_fileHistory;
2100 }
2101
2102 // File history management
2103 void wxFileHistory::AddFileToHistory(const wxString& file)
2104 {
2105     size_t i;
2106
2107     // Check we don't already have this file
2108     for (i = 0; i < m_fileHistoryN; i++)
2109     {
2110 #if defined( __WXMSW__ ) // Add any other OSes with case insensitive file names
2111         wxString testString;
2112         if ( m_fileHistory[i] )
2113             testString = m_fileHistory[i];
2114         if ( m_fileHistory[i] && ( file.Lower() == testString.Lower() ) )
2115 #else
2116         if ( m_fileHistory[i] && ( file == m_fileHistory[i] ) )
2117 #endif
2118         {
2119             // we do have it, move it to the top of the history
2120             RemoveFileFromHistory (i);
2121             AddFileToHistory (file);
2122             return;
2123         }
2124     }
2125
2126     // if we already have a full history, delete the one at the end
2127     if ( m_fileMaxFiles == m_fileHistoryN )
2128     {
2129         RemoveFileFromHistory (m_fileHistoryN - 1);
2130         AddFileToHistory (file);
2131         return;
2132     }
2133
2134     // Add to the project file history:
2135     // Move existing files (if any) down so we can insert file at beginning.
2136     if (m_fileHistoryN < m_fileMaxFiles)
2137     {
2138         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2139         while (node)
2140         {
2141             wxMenu* menu = (wxMenu*) node->GetData();
2142             if ( m_fileHistoryN == 0 && menu->GetMenuItemCount() )
2143             {
2144                 menu->AppendSeparator();
2145             }
2146             menu->Append(m_idBase+m_fileHistoryN, _("[EMPTY]"));
2147             node = node->GetNext();
2148         }
2149         m_fileHistoryN ++;
2150     }
2151     // Shuffle filenames down
2152     for (i = (m_fileHistoryN-1); i > 0; i--)
2153     {
2154         m_fileHistory[i] = m_fileHistory[i-1];
2155     }
2156     m_fileHistory[0] = MYcopystring(file);
2157
2158     // this is the directory of the last opened file
2159     wxString pathCurrent;
2160     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
2161     for (i = 0; i < m_fileHistoryN; i++)
2162     {
2163         if ( m_fileHistory[i] )
2164         {
2165             // if in same directory just show the filename; otherwise the full
2166             // path
2167             wxString pathInMenu, path, filename, ext;
2168             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
2169             if ( path == pathCurrent )
2170             {
2171                 pathInMenu = filename;
2172                 if ( !ext.empty() )
2173                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
2174             }
2175             else
2176             {
2177                 // absolute path; could also set relative path
2178                 pathInMenu = m_fileHistory[i];
2179             }
2180
2181             // we need to quote '&' characters which are used for mnemonics
2182             pathInMenu.Replace(_T("&"), _T("&&"));
2183             wxString buf;
2184             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
2185             wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2186             while (node)
2187             {
2188                 wxMenu* menu = (wxMenu*) node->GetData();
2189                 menu->SetLabel(m_idBase + i, buf);
2190                 node = node->GetNext();
2191             }
2192         }
2193     }
2194 }
2195
2196 void wxFileHistory::RemoveFileFromHistory(size_t i)
2197 {
2198     wxCHECK_RET( i < m_fileHistoryN,
2199                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2200
2201     // delete the element from the array (could use memmove() too...)
2202     delete [] m_fileHistory[i];
2203
2204     size_t j;
2205     for ( j = i; j < m_fileHistoryN - 1; j++ )
2206     {
2207         m_fileHistory[j] = m_fileHistory[j + 1];
2208     }
2209
2210     wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2211     while ( node )
2212     {
2213         wxMenu* menu = (wxMenu*) node->GetData();
2214
2215         // shuffle filenames up
2216         wxString buf;
2217         for ( j = i; j < m_fileHistoryN - 1; j++ )
2218         {
2219             buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2220             menu->SetLabel(m_idBase + j, buf);
2221         }
2222
2223         node = node->GetNext();
2224
2225         // delete the last menu item which is unused now
2226         wxWindowID lastItemId = m_idBase + wx_truncate_cast(wxWindowID, m_fileHistoryN) - 1;
2227         if (menu->FindItem(lastItemId))
2228         {
2229             menu->Delete(lastItemId);
2230         }
2231
2232         // delete the last separator too if no more files are left
2233         if ( m_fileHistoryN == 1 )
2234         {
2235             wxMenuItemList::compatibility_iterator nodeLast = menu->GetMenuItems().GetLast();
2236             if ( nodeLast )
2237             {
2238                 wxMenuItem *menuItem = nodeLast->GetData();
2239                 if ( menuItem->IsSeparator() )
2240                 {
2241                     menu->Delete(menuItem);
2242                 }
2243                 //else: should we search backwards for the last separator?
2244             }
2245             //else: menu is empty somehow
2246         }
2247     }
2248
2249     m_fileHistoryN--;
2250 }
2251
2252 wxString wxFileHistory::GetHistoryFile(size_t i) const
2253 {
2254     wxString s;
2255     if ( i < m_fileHistoryN )
2256     {
2257         s = m_fileHistory[i];
2258     }
2259     else
2260     {
2261         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2262     }
2263
2264     return s;
2265 }
2266
2267 void wxFileHistory::UseMenu(wxMenu *menu)
2268 {
2269     if (!m_fileMenus.Member(menu))
2270         m_fileMenus.Append(menu);
2271 }
2272
2273 void wxFileHistory::RemoveMenu(wxMenu *menu)
2274 {
2275     m_fileMenus.DeleteObject(menu);
2276 }
2277
2278 #if wxUSE_CONFIG
2279 void wxFileHistory::Load(wxConfigBase& config)
2280 {
2281     m_fileHistoryN = 0;
2282     wxString buf;
2283     buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2284     wxString historyFile;
2285     while ((m_fileHistoryN < m_fileMaxFiles) && config.Read(buf, &historyFile) && (!historyFile.empty()))
2286     {
2287         m_fileHistory[m_fileHistoryN] = MYcopystring((const wxChar*) historyFile);
2288         m_fileHistoryN ++;
2289         buf.Printf(wxT("file%d"), (int)m_fileHistoryN+1);
2290         historyFile = wxEmptyString;
2291     }
2292     AddFilesToMenu();
2293 }
2294
2295 void wxFileHistory::Save(wxConfigBase& config)
2296 {
2297     size_t i;
2298     for (i = 0; i < m_fileMaxFiles; i++)
2299     {
2300         wxString buf;
2301         buf.Printf(wxT("file%d"), (int)i+1);
2302         if (i < m_fileHistoryN)
2303             config.Write(buf, wxString(m_fileHistory[i]));
2304         else
2305             config.Write(buf, wxEmptyString);
2306     }
2307 }
2308 #endif // wxUSE_CONFIG
2309
2310 void wxFileHistory::AddFilesToMenu()
2311 {
2312     if (m_fileHistoryN > 0)
2313     {
2314         wxList::compatibility_iterator node = m_fileMenus.GetFirst();
2315         while (node)
2316         {
2317             wxMenu* menu = (wxMenu*) node->GetData();
2318             if (menu->GetMenuItemCount())
2319             {
2320                 menu->AppendSeparator();
2321             }
2322
2323             size_t i;
2324             for (i = 0; i < m_fileHistoryN; i++)
2325             {
2326                 if (m_fileHistory[i])
2327                 {
2328                     wxString buf;
2329                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2330                     menu->Append(m_idBase+i, buf);
2331                 }
2332             }
2333             node = node->GetNext();
2334         }
2335     }
2336 }
2337
2338 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2339 {
2340     if (m_fileHistoryN > 0)
2341     {
2342         if (menu->GetMenuItemCount())
2343         {
2344             menu->AppendSeparator();
2345         }
2346
2347         size_t i;
2348         for (i = 0; i < m_fileHistoryN; i++)
2349         {
2350             if (m_fileHistory[i])
2351             {
2352                 wxString buf;
2353                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2354                 menu->Append(m_idBase+i, buf);
2355             }
2356         }
2357     }
2358 }
2359
2360 // ----------------------------------------------------------------------------
2361 // Permits compatibility with existing file formats and functions that
2362 // manipulate files directly
2363 // ----------------------------------------------------------------------------
2364
2365 #if wxUSE_STD_IOSTREAM
2366
2367 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2368 {
2369     wxFFile file(filename, _T("rb"));
2370     if ( !file.IsOpened() )
2371         return false;
2372
2373     char buf[4096];
2374
2375     size_t nRead;
2376     do
2377     {
2378         nRead = file.Read(buf, WXSIZEOF(buf));
2379         if ( file.Error() )
2380             return false;
2381
2382         stream.write(buf, nRead);
2383         if ( !stream )
2384             return false;
2385     }
2386     while ( !file.Eof() );
2387
2388     return true;
2389 }
2390
2391 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2392 {
2393     wxFFile file(filename, _T("wb"));
2394     if ( !file.IsOpened() )
2395         return false;
2396
2397     char buf[4096];
2398     do
2399     {
2400         stream.read(buf, WXSIZEOF(buf));
2401         if ( !stream.bad() ) // fail may be set on EOF, don't use operator!()
2402         {
2403             if ( !file.Write(buf, stream.gcount()) )
2404                 return false;
2405         }
2406     }
2407     while ( !stream.eof() );
2408
2409     return true;
2410 }
2411
2412 #else // !wxUSE_STD_IOSTREAM
2413
2414 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2415 {
2416     wxFFile file(filename, _T("rb"));
2417     if ( !file.IsOpened() )
2418         return false;
2419
2420     char buf[4096];
2421
2422     size_t nRead;
2423     do
2424     {
2425         nRead = file.Read(buf, WXSIZEOF(buf));
2426         if ( file.Error() )
2427             return false;
2428
2429         stream.Write(buf, nRead);
2430         if ( !stream )
2431             return false;
2432     }
2433     while ( !file.Eof() );
2434
2435     return true;
2436 }
2437
2438 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2439 {
2440     wxFFile file(filename, _T("wb"));
2441     if ( !file.IsOpened() )
2442         return false;
2443
2444     char buf[4096];
2445     do
2446     {
2447         stream.Read(buf, WXSIZEOF(buf));
2448
2449         const size_t nRead = stream.LastRead();
2450         if ( !nRead || !file.Write(buf, nRead) )
2451             return false;
2452     }
2453     while ( !stream.Eof() );
2454
2455     return true;
2456 }
2457
2458 #endif // wxUSE_STD_IOSTREAM/!wxUSE_STD_IOSTREAM
2459
2460 #endif // wxUSE_DOC_VIEW_ARCHITECTURE