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 and Markus Holzem
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "docview.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28   #pragma hdrstop
  29 #endif
  30
  31 #if wxUSE_DOC_VIEW_ARCHITECTURE
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/string.h"
  35     #include "wx/utils.h"
  36     #include "wx/app.h"
  37     #include "wx/dc.h"
  38     #include "wx/dialog.h"
  39     #include "wx/menu.h"
  40     #include "wx/list.h"
  41     #include "wx/filedlg.h"
  42     #include "wx/intl.h"
  43     #include "wx/log.h"
  44 #endif
  45
  46
  47 #ifdef __WXGTK__
  48     #include "wx/mdi.h"
  49 #endif
  50
  51 #if wxUSE_PRINTING_ARCHITECTURE
  52   #include "wx/prntbase.h"
  53   #include "wx/printdlg.h"
  54 #endif
  55
  56 #include "wx/msgdlg.h"
  57 #include "wx/choicdlg.h"
  58 #include "wx/docview.h"
  59 #include "wx/confbase.h"
  60 #include "wx/file.h"
  61 #include "wx/cmdproc.h"
  62
  63 #include <stdio.h>
  64 #include <string.h>
  65
  66 #if wxUSE_STD_IOSTREAM
  67   #include "wx/ioswrap.h"
  68   #if wxUSE_IOSTREAMH
  69     #include <fstream.h>
  70   #else
  71     #include <fstream>
  72   #endif
  73 #else
  74   #include "wx/wfstream.h"
  75 #endif
  76
  77 // ----------------------------------------------------------------------------
  78 // wxWindows macros
  79 // ----------------------------------------------------------------------------
  80
  81 IMPLEMENT_ABSTRACT_CLASS(wxDocument, wxEvtHandler)
  82 IMPLEMENT_ABSTRACT_CLASS(wxView, wxEvtHandler)
  83 IMPLEMENT_ABSTRACT_CLASS(wxDocTemplate, wxObject)
  84 IMPLEMENT_DYNAMIC_CLASS(wxDocManager, wxEvtHandler)
  85 IMPLEMENT_CLASS(wxDocChildFrame, wxFrame)
  86 IMPLEMENT_CLASS(wxDocParentFrame, wxFrame)
  87
  88 #if wxUSE_PRINTING_ARCHITECTURE
  89     IMPLEMENT_DYNAMIC_CLASS(wxDocPrintout, wxPrintout)
  90 #endif
  91
  92 IMPLEMENT_DYNAMIC_CLASS(wxFileHistory, wxObject)
  93
  94 // ----------------------------------------------------------------------------
  95 // function prototypes
  96 // ----------------------------------------------------------------------------
  97
  98 static inline wxString FindExtension(const wxChar *path);
  99
 100 // ----------------------------------------------------------------------------
 101 // local constants
 102 // ----------------------------------------------------------------------------
 103
 104 static const wxChar *s_MRUEntryFormat = wxT("&%d %s");
 105
 106 // ============================================================================
 107 // implementation
 108 // ============================================================================
 109
 110 // ----------------------------------------------------------------------------
 111 // local functions
 112 // ----------------------------------------------------------------------------
 113
 114 static wxString FindExtension(const wxChar *path)
 115 {
 116     wxString ext;
 117     wxSplitPath(path, NULL, NULL, &ext);
 118
 119     // VZ: extensions are considered not case sensitive - is this really a good
 120     //     idea?
 121     return ext.MakeLower();
 122 }
 123
 124 // ----------------------------------------------------------------------------
 125 // Definition of wxDocument
 126 // ----------------------------------------------------------------------------
 127
 128 wxDocument::wxDocument(wxDocument *parent)
 129 {
 130     m_documentModified = FALSE;
 131     m_documentParent = parent;
 132     m_documentTemplate = (wxDocTemplate *) NULL;
 133     m_commandProcessor = (wxCommandProcessor*) NULL;
 134     m_savedYet = FALSE;
 135 }
 136
 137 bool wxDocument::DeleteContents()
 138 {
 139     return TRUE;
 140 }
 141
 142 wxDocument::~wxDocument()
 143 {
 144     DeleteContents();
 145
 146     if (m_commandProcessor)
 147         delete m_commandProcessor;
 148
 149     if (GetDocumentManager())
 150         GetDocumentManager()->RemoveDocument(this);
 151
 152     // Not safe to do here, since it'll invoke virtual view functions
 153     // expecting to see valid derived objects: and by the time we get here,
 154     // we've called destructors higher up.
 155     //DeleteAllViews();
 156 }
 157
 158 bool wxDocument::Close()
 159 {
 160     if (OnSaveModified())
 161         return OnCloseDocument();
 162     else
 163         return FALSE;
 164 }
 165
 166 bool wxDocument::OnCloseDocument()
 167 {
 168     // Tell all views that we're about to close
 169     NotifyClosing();
 170     DeleteContents();
 171     Modify(FALSE);
 172     return TRUE;
 173 }
 174
 175 // Note that this implicitly deletes the document when the last view is
 176 // deleted.
 177 bool wxDocument::DeleteAllViews()
 178 {
 179     wxDocManager* manager = GetDocumentManager();
 180
 181     wxNode *node = m_documentViews.First();
 182     while (node)
 183     {
 184         wxView *view = (wxView *)node->Data();
 185         if (!view->Close())
 186             return FALSE;
 187
 188         wxNode *next = node->Next();
 189
 190         delete view; // Deletes node implicitly
 191         node = next;
 192     }
 193     // If we haven't yet deleted the document (for example
 194     // if there were no views) then delete it.
 195     if (manager && manager->GetDocuments().Member(this))
 196         delete this;
 197
 198     return TRUE;
 199 }
 200
 201 wxView *wxDocument::GetFirstView() const
 202 {
 203     if (m_documentViews.Number() == 0)
 204         return (wxView *) NULL;
 205     return (wxView *)m_documentViews.First()->Data();
 206 }
 207
 208 wxDocManager *wxDocument::GetDocumentManager() const
 209 {
 210     return (m_documentTemplate ? m_documentTemplate->GetDocumentManager() : (wxDocManager*) NULL);
 211 }
 212
 213 bool wxDocument::OnNewDocument()
 214 {
 215     if (!OnSaveModified())
 216         return FALSE;
 217
 218     if (OnCloseDocument()==FALSE) return FALSE;
 219     DeleteContents();
 220     Modify(FALSE);
 221     SetDocumentSaved(FALSE);
 222
 223     wxString name;
 224     GetDocumentManager()->MakeDefaultName(name);
 225     SetTitle(name);
 226     SetFilename(name, TRUE);
 227
 228     return TRUE;
 229 }
 230
 231 bool wxDocument::Save()
 232 {
 233     if (!IsModified() && m_savedYet)
 234         return TRUE;
 235
 236     if ( m_documentFile.empty() || !m_savedYet )
 237         return SaveAs();
 238
 239     return OnSaveDocument(m_documentFile);
 240 }
 241
 242 bool wxDocument::SaveAs()
 243 {
 244     wxDocTemplate *docTemplate = GetDocumentTemplate();
 245     if (!docTemplate)
 246         return FALSE;
 247
 248     wxString tmp = wxFileSelector(_("Save as"),
 249             docTemplate->GetDirectory(),
 250             wxFileNameFromPath(GetFilename()),
 251             docTemplate->GetDefaultExtension(),
 252             docTemplate->GetFileFilter(),
 253             wxSAVE | wxOVERWRITE_PROMPT,
 254             GetDocumentWindow());
 255
 256     if (tmp.IsEmpty())
 257         return FALSE;
 258
 259     wxString fileName(tmp);
 260     wxString path, name, ext;
 261     wxSplitPath(fileName, & path, & name, & ext);
 262
 263     if (ext.IsEmpty() || ext == wxT(""))
 264     {
 265         fileName += wxT(".");
 266         fileName += docTemplate->GetDefaultExtension();
 267     }
 268
 269     SetFilename(fileName);
 270     SetTitle(wxFileNameFromPath(fileName));
 271
 272     GetDocumentManager()->AddFileToHistory(fileName);
 273
 274     // Notify the views that the filename has changed
 275     wxNode *node = m_documentViews.First();
 276     while (node)
 277     {
 278         wxView *view = (wxView *)node->Data();
 279         view->OnChangeFilename();
 280         node = node->Next();
 281     }
 282
 283     return OnSaveDocument(m_documentFile);
 284 }
 285
 286 bool wxDocument::OnSaveDocument(const wxString& file)
 287 {
 288     if ( !file )
 289         return FALSE;
 290
 291     wxString msgTitle;
 292     if (wxTheApp->GetAppName() != wxT(""))
 293         msgTitle = wxTheApp->GetAppName();
 294     else
 295         msgTitle = wxString(_("File error"));
 296
 297 #if wxUSE_STD_IOSTREAM
 298     wxSTD ofstream store(wxString(file.fn_str()).mb_str());   // ?????
 299     if (store.fail() || store.bad())
 300 #else
 301     wxFileOutputStream store( file );
 302     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 303 #endif
 304     {
 305         (void)wxMessageBox(_("Sorry, could not open this file for saving."), msgTitle, wxOK | wxICON_EXCLAMATION,
 306                            GetDocumentWindow());
 307         // Saving error
 308         return FALSE;
 309     }
 310     if (!SaveObject(store))
 311     {
 312         (void)wxMessageBox(_("Sorry, could not save this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
 313                            GetDocumentWindow());
 314         // Saving error
 315         return FALSE;
 316     }
 317     Modify(FALSE);
 318     SetFilename(file);
 319     SetDocumentSaved(TRUE);
 320     return TRUE;
 321 }
 322
 323 bool wxDocument::OnOpenDocument(const wxString& file)
 324 {
 325     if (!OnSaveModified())
 326         return FALSE;
 327
 328     wxString msgTitle;
 329     if (wxTheApp->GetAppName() != wxT(""))
 330         msgTitle = wxTheApp->GetAppName();
 331     else
 332         msgTitle = wxString(_("File error"));
 333
 334 #if wxUSE_STD_IOSTREAM
 335     wxSTD ifstream store(wxString(file.fn_str()).mb_str());  // ????
 336     if (store.fail() || store.bad())
 337 #else
 338     wxFileInputStream store( file );
 339     if (store.GetLastError() != wxSTREAM_NO_ERROR)
 340 #endif
 341     {
 342         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
 343                            GetDocumentWindow());
 344         return FALSE;
 345     }
 346 #if wxUSE_STD_IOSTREAM
 347     LoadObject(store);
 348     if ( !store && !store.eof() )
 349 #else
 350     int res = LoadObject(store).GetLastError();
 351     if ((res != wxSTREAM_NO_ERROR) &&
 352         (res != wxSTREAM_EOF))
 353 #endif
 354     {
 355         (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK|wxICON_EXCLAMATION,
 356                            GetDocumentWindow());
 357         return FALSE;
 358     }
 359     SetFilename(file, TRUE);
 360     Modify(FALSE);
 361     m_savedYet = TRUE;
 362
 363     UpdateAllViews();
 364
 365     return TRUE;
 366 }
 367
 368 #if wxUSE_STD_IOSTREAM
 369 wxSTD istream& wxDocument::LoadObject(wxSTD istream& stream)
 370 #else
 371 wxInputStream& wxDocument::LoadObject(wxInputStream& stream)
 372 #endif
 373 {
 374     return stream;
 375 }
 376
 377 #if wxUSE_STD_IOSTREAM
 378 wxSTD ostream& wxDocument::SaveObject(wxSTD ostream& stream)
 379 #else
 380 wxOutputStream& wxDocument::SaveObject(wxOutputStream& stream)
 381 #endif
 382 {
 383     return stream;
 384 }
 385
 386 bool wxDocument::Revert()
 387 {
 388     return FALSE;
 389 }
 390
 391
 392 // Get title, or filename if no title, else unnamed
 393 bool wxDocument::GetPrintableName(wxString& buf) const
 394 {
 395     if (m_documentTitle != wxT(""))
 396     {
 397         buf = m_documentTitle;
 398         return TRUE;
 399     }
 400     else if (m_documentFile != wxT(""))
 401     {
 402         buf = wxFileNameFromPath(m_documentFile);
 403         return TRUE;
 404     }
 405     else
 406     {
 407         buf = _("unnamed");
 408         return TRUE;
 409     }
 410 }
 411
 412 wxWindow *wxDocument::GetDocumentWindow() const
 413 {
 414     wxView *view = GetFirstView();
 415     if (view)
 416         return view->GetFrame();
 417     else
 418         return wxTheApp->GetTopWindow();
 419 }
 420
 421 wxCommandProcessor *wxDocument::OnCreateCommandProcessor()
 422 {
 423     return new wxCommandProcessor;
 424 }
 425
 426 // TRUE if safe to close
 427 bool wxDocument::OnSaveModified()
 428 {
 429     if (IsModified())
 430     {
 431         wxString title;
 432         GetPrintableName(title);
 433
 434         wxString msgTitle;
 435         if (wxTheApp->GetAppName() != wxT(""))
 436             msgTitle = wxTheApp->GetAppName();
 437         else
 438             msgTitle = wxString(_("Warning"));
 439
 440         wxString prompt;
 441         prompt.Printf(_("Do you want to save changes to document %s?"),
 442                 (const wxChar *)title);
 443         int res = wxMessageBox(prompt, msgTitle,
 444                 wxYES_NO|wxCANCEL|wxICON_QUESTION,
 445                 GetDocumentWindow());
 446         if (res == wxNO)
 447         {
 448             Modify(FALSE);
 449             return TRUE;
 450         }
 451         else if (res == wxYES)
 452             return Save();
 453         else if (res == wxCANCEL)
 454             return FALSE;
 455     }
 456     return TRUE;
 457 }
 458
 459 bool wxDocument::Draw(wxDC& WXUNUSED(context))
 460 {
 461     return TRUE;
 462 }
 463
 464 bool wxDocument::AddView(wxView *view)
 465 {
 466     if (!m_documentViews.Member(view))
 467     {
 468         m_documentViews.Append(view);
 469         OnChangedViewList();
 470     }
 471     return TRUE;
 472 }
 473
 474 bool wxDocument::RemoveView(wxView *view)
 475 {
 476     (void)m_documentViews.DeleteObject(view);
 477     OnChangedViewList();
 478     return TRUE;
 479 }
 480
 481 bool wxDocument::OnCreate(const wxString& WXUNUSED(path), long flags)
 482 {
 483     if (GetDocumentTemplate()->CreateView(this, flags))
 484         return TRUE;
 485     else
 486         return FALSE;
 487 }
 488
 489 // Called after a view is added or removed.
 490 // The default implementation deletes the document if
 491 // there are no more views.
 492 void wxDocument::OnChangedViewList()
 493 {
 494     if (m_documentViews.Number() == 0)
 495     {
 496         if (OnSaveModified())
 497         {
 498             delete this;
 499         }
 500     }
 501 }
 502
 503 void wxDocument::UpdateAllViews(wxView *sender, wxObject *hint)
 504 {
 505     wxNode *node = m_documentViews.First();
 506     while (node)
 507     {
 508         wxView *view = (wxView *)node->Data();
 509                 if (view != sender)
 510             view->OnUpdate(sender, hint);
 511         node = node->Next();
 512     }
 513 }
 514
 515 void wxDocument::NotifyClosing()
 516 {
 517     wxNode *node = m_documentViews.First();
 518     while (node)
 519     {
 520         wxView *view = (wxView *)node->Data();
 521         view->OnClosingDocument();
 522         node = node->Next();
 523     }
 524 }
 525
 526 void wxDocument::SetFilename(const wxString& filename, bool notifyViews)
 527 {
 528     m_documentFile = filename;
 529     if ( notifyViews )
 530     {
 531         // Notify the views that the filename has changed
 532         wxNode *node = m_documentViews.First();
 533         while (node)
 534         {
 535             wxView *view = (wxView *)node->Data();
 536             view->OnChangeFilename();
 537             node = node->Next();
 538         }
 539     }
 540 }
 541
 542 // ----------------------------------------------------------------------------
 543 // Document view
 544 // ----------------------------------------------------------------------------
 545
 546 wxView::wxView()
 547 {
 548     //  SetDocument(doc);
 549     m_viewDocument = (wxDocument*) NULL;
 550
 551     m_viewTypeName = wxT("");
 552     m_viewFrame = (wxFrame *) NULL;
 553 }
 554
 555 wxView::~wxView()
 556 {
 557 //    GetDocumentManager()->ActivateView(this, FALSE, TRUE);
 558     m_viewDocument->RemoveView(this);
 559 }
 560
 561 // Extend event processing to search the document's event table
 562 bool wxView::ProcessEvent(wxEvent& event)
 563 {
 564     if ( !GetDocument() || !GetDocument()->ProcessEvent(event) )
 565         return wxEvtHandler::ProcessEvent(event);
 566     else
 567         return TRUE;
 568 }
 569
 570 void wxView::OnActivateView(bool WXUNUSED(activate), wxView *WXUNUSED(activeView), wxView *WXUNUSED(deactiveView))
 571 {
 572 }
 573
 574 void wxView::OnPrint(wxDC *dc, wxObject *WXUNUSED(info))
 575 {
 576     OnDraw(dc);
 577 }
 578
 579 void wxView::OnUpdate(wxView *WXUNUSED(sender), wxObject *WXUNUSED(hint))
 580 {
 581 }
 582
 583 void wxView::OnChangeFilename()
 584 {
 585     if (GetFrame() && GetDocument())
 586     {
 587         wxString title;
 588
 589         GetDocument()->GetPrintableName(title);
 590
 591         GetFrame()->SetTitle(title);
 592     }
 593 }
 594
 595 void wxView::SetDocument(wxDocument *doc)
 596 {
 597     m_viewDocument = doc;
 598     if (doc)
 599         doc->AddView(this);
 600 }
 601
 602 bool wxView::Close(bool deleteWindow)
 603 {
 604     if (OnClose(deleteWindow))
 605         return TRUE;
 606     else
 607         return FALSE;
 608 }
 609
 610 void wxView::Activate(bool activate)
 611 {
 612     if (GetDocument() && GetDocumentManager())
 613     {
 614         OnActivateView(activate, this, GetDocumentManager()->GetCurrentView());
 615         GetDocumentManager()->ActivateView(this, activate);
 616     }
 617 }
 618
 619 bool wxView::OnClose(bool WXUNUSED(deleteWindow))
 620 {
 621     return GetDocument() ? GetDocument()->Close() : TRUE;
 622 }
 623
 624 #if wxUSE_PRINTING_ARCHITECTURE
 625 wxPrintout *wxView::OnCreatePrintout()
 626 {
 627     return new wxDocPrintout(this);
 628 }
 629 #endif // wxUSE_PRINTING_ARCHITECTURE
 630
 631 // ----------------------------------------------------------------------------
 632 // wxDocTemplate
 633 // ----------------------------------------------------------------------------
 634
 635 wxDocTemplate::wxDocTemplate(wxDocManager *manager,
 636                              const wxString& descr,
 637                              const wxString& filter,
 638                              const wxString& dir,
 639                              const wxString& ext,
 640                              const wxString& docTypeName,
 641                              const wxString& viewTypeName,
 642                              wxClassInfo *docClassInfo,
 643                              wxClassInfo *viewClassInfo,
 644                              long flags)
 645 {
 646     m_documentManager = manager;
 647     m_description = descr;
 648     m_directory = dir;
 649     m_defaultExt = ext;
 650     m_fileFilter = filter;
 651     m_flags = flags;
 652     m_docTypeName = docTypeName;
 653     m_viewTypeName = viewTypeName;
 654     m_documentManager->AssociateTemplate(this);
 655
 656     m_docClassInfo = docClassInfo;
 657     m_viewClassInfo = viewClassInfo;
 658 }
 659
 660 wxDocTemplate::~wxDocTemplate()
 661 {
 662     m_documentManager->DisassociateTemplate(this);
 663 }
 664
 665 // Tries to dynamically construct an object of the right class.
 666 wxDocument *wxDocTemplate::CreateDocument(const wxString& path, long flags)
 667 {
 668     if (!m_docClassInfo)
 669         return (wxDocument *) NULL;
 670     wxDocument *doc = (wxDocument *)m_docClassInfo->CreateObject();
 671     doc->SetFilename(path);
 672     doc->SetDocumentTemplate(this);
 673     GetDocumentManager()->AddDocument(doc);
 674     doc->SetCommandProcessor(doc->OnCreateCommandProcessor());
 675
 676     if (doc->OnCreate(path, flags))
 677         return doc;
 678     else
 679     {
 680         if (GetDocumentManager()->GetDocuments().Member(doc))
 681             doc->DeleteAllViews();
 682         return (wxDocument *) NULL;
 683     }
 684 }
 685
 686 wxView *wxDocTemplate::CreateView(wxDocument *doc, long flags)
 687 {
 688     if (!m_viewClassInfo)
 689         return (wxView *) NULL;
 690     wxView *view = (wxView *)m_viewClassInfo->CreateObject();
 691     view->SetDocument(doc);
 692     if (view->OnCreate(doc, flags))
 693     {
 694         return view;
 695     }
 696     else
 697     {
 698         delete view;
 699         return (wxView *) NULL;
 700     }
 701 }
 702
 703 // The default (very primitive) format detection: check is the extension is
 704 // that of the template
 705 bool wxDocTemplate::FileMatchesTemplate(const wxString& path)
 706 {
 707     return GetDefaultExtension().IsSameAs(FindExtension(path));
 708 }
 709
 710 // ----------------------------------------------------------------------------
 711 // wxDocManager
 712 // ----------------------------------------------------------------------------
 713
 714 BEGIN_EVENT_TABLE(wxDocManager, wxEvtHandler)
 715     EVT_MENU(wxID_OPEN, wxDocManager::OnFileOpen)
 716     EVT_MENU(wxID_CLOSE, wxDocManager::OnFileClose)
 717     EVT_MENU(wxID_CLOSE_ALL, wxDocManager::OnFileCloseAll)
 718     EVT_MENU(wxID_REVERT, wxDocManager::OnFileRevert)
 719     EVT_MENU(wxID_NEW, wxDocManager::OnFileNew)
 720     EVT_MENU(wxID_SAVE, wxDocManager::OnFileSave)
 721     EVT_MENU(wxID_SAVEAS, wxDocManager::OnFileSaveAs)
 722     EVT_MENU(wxID_UNDO, wxDocManager::OnUndo)
 723     EVT_MENU(wxID_REDO, wxDocManager::OnRedo)
 724
 725     EVT_UPDATE_UI(wxID_OPEN, wxDocManager::OnUpdateFileOpen)
 726     EVT_UPDATE_UI(wxID_CLOSE, wxDocManager::OnUpdateFileClose)
 727     EVT_UPDATE_UI(wxID_CLOSE_ALL, wxDocManager::OnUpdateFileClose)
 728     EVT_UPDATE_UI(wxID_REVERT, wxDocManager::OnUpdateFileRevert)
 729     EVT_UPDATE_UI(wxID_NEW, wxDocManager::OnUpdateFileNew)
 730     EVT_UPDATE_UI(wxID_SAVE, wxDocManager::OnUpdateFileSave)
 731     EVT_UPDATE_UI(wxID_SAVEAS, wxDocManager::OnUpdateFileSaveAs)
 732     EVT_UPDATE_UI(wxID_UNDO, wxDocManager::OnUpdateUndo)
 733     EVT_UPDATE_UI(wxID_REDO, wxDocManager::OnUpdateRedo)
 734
 735 #if wxUSE_PRINTING_ARCHITECTURE
 736     EVT_MENU(wxID_PRINT, wxDocManager::OnPrint)
 737     EVT_MENU(wxID_PRINT_SETUP, wxDocManager::OnPrintSetup)
 738     EVT_MENU(wxID_PREVIEW, wxDocManager::OnPreview)
 739
 740     EVT_UPDATE_UI(wxID_PRINT, wxDocManager::OnUpdatePrint)
 741     EVT_UPDATE_UI(wxID_PRINT_SETUP, wxDocManager::OnUpdatePrintSetup)
 742     EVT_UPDATE_UI(wxID_PREVIEW, wxDocManager::OnUpdatePreview)
 743 #endif
 744 END_EVENT_TABLE()
 745
 746 wxDocManager* wxDocManager::sm_docManager = (wxDocManager*) NULL;
 747
 748 wxDocManager::wxDocManager(long flags, bool initialize)
 749 {
 750     m_defaultDocumentNameCounter = 1;
 751     m_flags = flags;
 752     m_currentView = (wxView *) NULL;
 753     m_maxDocsOpen = 10000;
 754     m_fileHistory = (wxFileHistory *) NULL;
 755     if (initialize)
 756         Initialize();
 757     sm_docManager = this;
 758 }
 759
 760 wxDocManager::~wxDocManager()
 761 {
 762     Clear();
 763     if (m_fileHistory)
 764         delete m_fileHistory;
 765     sm_docManager = (wxDocManager*) NULL;
 766 }
 767
 768 bool wxDocManager::CloseDocuments(bool force)
 769 {
 770     wxNode *node = m_docs.First();
 771     while (node)
 772     {
 773         wxDocument *doc = (wxDocument *)node->Data();
 774         wxNode *next = node->Next();
 775
 776         if (!doc->Close() && !force)
 777             return FALSE;
 778
 779         // Implicitly deletes the document when the last
 780         // view is removed (deleted)
 781         doc->DeleteAllViews();
 782
 783         // Check document is deleted
 784         if (m_docs.Member(doc))
 785             delete doc;
 786
 787         // This assumes that documents are not connected in
 788         // any way, i.e. deleting one document does NOT
 789         // delete another.
 790         node = next;
 791     }
 792     return TRUE;
 793 }
 794
 795 bool wxDocManager::Clear(bool force)
 796 {
 797     if (!CloseDocuments(force))
 798         return FALSE;
 799
 800     wxNode *node = m_templates.First();
 801     while (node)
 802     {
 803         wxDocTemplate *templ = (wxDocTemplate*) node->Data();
 804         wxNode* next = node->Next();
 805         delete templ;
 806         node = next;
 807     }
 808     return TRUE;
 809 }
 810
 811 bool wxDocManager::Initialize()
 812 {
 813     m_fileHistory = OnCreateFileHistory();
 814     return TRUE;
 815 }
 816
 817 wxFileHistory *wxDocManager::OnCreateFileHistory()
 818 {
 819     return new wxFileHistory;
 820 }
 821
 822 void wxDocManager::OnFileClose(wxCommandEvent& WXUNUSED(event))
 823 {
 824     wxDocument *doc = GetCurrentDocument();
 825     if (!doc)
 826         return;
 827     if (doc->Close())
 828     {
 829         doc->DeleteAllViews();
 830         if (m_docs.Member(doc))
 831             delete doc;
 832     }
 833 }
 834
 835 void wxDocManager::OnFileCloseAll(wxCommandEvent& WXUNUSED(event))
 836 {
 837     CloseDocuments(FALSE);
 838 }
 839
 840 void wxDocManager::OnFileNew(wxCommandEvent& WXUNUSED(event))
 841 {
 842     CreateDocument( wxT(""), wxDOC_NEW );
 843 }
 844
 845 void wxDocManager::OnFileOpen(wxCommandEvent& WXUNUSED(event))
 846 {
 847     if ( !CreateDocument( wxT(""), 0) )
 848     {
 849         OnOpenFileFailure();
 850     }
 851 }
 852
 853 void wxDocManager::OnFileRevert(wxCommandEvent& WXUNUSED(event))
 854 {
 855     wxDocument *doc = GetCurrentDocument();
 856     if (!doc)
 857         return;
 858     doc->Revert();
 859 }
 860
 861 void wxDocManager::OnFileSave(wxCommandEvent& WXUNUSED(event))
 862 {
 863     wxDocument *doc = GetCurrentDocument();
 864     if (!doc)
 865         return;
 866     doc->Save();
 867 }
 868
 869 void wxDocManager::OnFileSaveAs(wxCommandEvent& WXUNUSED(event))
 870 {
 871     wxDocument *doc = GetCurrentDocument();
 872     if (!doc)
 873         return;
 874     doc->SaveAs();
 875 }
 876
 877 void wxDocManager::OnPrint(wxCommandEvent& WXUNUSED(event))
 878 {
 879 #if wxUSE_PRINTING_ARCHITECTURE
 880     wxView *view = GetCurrentView();
 881     if (!view)
 882         return;
 883
 884     wxPrintout *printout = view->OnCreatePrintout();
 885     if (printout)
 886     {
 887         wxPrinter printer;
 888         printer.Print(view->GetFrame(), printout, TRUE);
 889
 890         delete printout;
 891     }
 892 #endif // wxUSE_PRINTING_ARCHITECTURE
 893 }
 894
 895 void wxDocManager::OnPrintSetup(wxCommandEvent& WXUNUSED(event))
 896 {
 897 #if wxUSE_PRINTING_ARCHITECTURE
 898     wxWindow *parentWin = wxTheApp->GetTopWindow();
 899     wxView *view = GetCurrentView();
 900     if (view)
 901         parentWin = view->GetFrame();
 902
 903     wxPrintDialogData data;
 904
 905     wxPrintDialog printerDialog(parentWin, &data);
 906     printerDialog.GetPrintDialogData().SetSetupDialog(TRUE);
 907     printerDialog.ShowModal();
 908 #endif // wxUSE_PRINTING_ARCHITECTURE
 909 }
 910
 911 void wxDocManager::OnPreview(wxCommandEvent& WXUNUSED(event))
 912 {
 913 #if wxUSE_PRINTING_ARCHITECTURE
 914     wxView *view = GetCurrentView();
 915     if (!view)
 916         return;
 917
 918     wxPrintout *printout = view->OnCreatePrintout();
 919     if (printout)
 920     {
 921         // Pass two printout objects: for preview, and possible printing.
 922         wxPrintPreviewBase *preview = (wxPrintPreviewBase *) NULL;
 923         preview = new wxPrintPreview(printout, view->OnCreatePrintout());
 924
 925         wxPreviewFrame *frame = new wxPreviewFrame(preview, (wxFrame *)wxTheApp->GetTopWindow(), _("Print Preview"),
 926                 wxPoint(100, 100), wxSize(600, 650));
 927         frame->Centre(wxBOTH);
 928         frame->Initialize();
 929         frame->Show(TRUE);
 930     }
 931 #endif // wxUSE_PRINTING_ARCHITECTURE
 932 }
 933
 934 void wxDocManager::OnUndo(wxCommandEvent& WXUNUSED(event))
 935 {
 936     wxDocument *doc = GetCurrentDocument();
 937     if (!doc)
 938         return;
 939     if (doc->GetCommandProcessor())
 940         doc->GetCommandProcessor()->Undo();
 941 }
 942
 943 void wxDocManager::OnRedo(wxCommandEvent& WXUNUSED(event))
 944 {
 945     wxDocument *doc = GetCurrentDocument();
 946     if (!doc)
 947         return;
 948     if (doc->GetCommandProcessor())
 949         doc->GetCommandProcessor()->Redo();
 950 }
 951
 952 // Handlers for UI update commands
 953
 954 void wxDocManager::OnUpdateFileOpen(wxUpdateUIEvent& event)
 955 {
 956     event.Enable( TRUE );
 957 }
 958
 959 void wxDocManager::OnUpdateFileClose(wxUpdateUIEvent& event)
 960 {
 961     wxDocument *doc = GetCurrentDocument();
 962     event.Enable( (doc != (wxDocument*) NULL) );
 963 }
 964
 965 void wxDocManager::OnUpdateFileRevert(wxUpdateUIEvent& event)
 966 {
 967     wxDocument *doc = GetCurrentDocument();
 968     event.Enable( (doc != (wxDocument*) NULL) );
 969 }
 970
 971 void wxDocManager::OnUpdateFileNew(wxUpdateUIEvent& event)
 972 {
 973     event.Enable( TRUE );
 974 }
 975
 976 void wxDocManager::OnUpdateFileSave(wxUpdateUIEvent& event)
 977 {
 978     wxDocument *doc = GetCurrentDocument();
 979     event.Enable( doc && doc->IsModified() );
 980 }
 981
 982 void wxDocManager::OnUpdateFileSaveAs(wxUpdateUIEvent& event)
 983 {
 984     wxDocument *doc = GetCurrentDocument();
 985     event.Enable( (doc != (wxDocument*) NULL) );
 986 }
 987
 988 void wxDocManager::OnUpdateUndo(wxUpdateUIEvent& event)
 989 {
 990     wxDocument *doc = GetCurrentDocument();
 991     event.Enable( (doc && doc->GetCommandProcessor() && doc->GetCommandProcessor()->CanUndo()) );
 992     if (doc && doc->GetCommandProcessor())
 993         doc->GetCommandProcessor()->SetMenuStrings();
 994 }
 995
 996 void wxDocManager::OnUpdateRedo(wxUpdateUIEvent& event)
 997 {
 998     wxDocument *doc = GetCurrentDocument();
 999     event.Enable( (doc && doc->GetCommandProcessor() && doc->GetCommandProcessor()->CanRedo()) );
1000     if (doc && doc->GetCommandProcessor())
1001         doc->GetCommandProcessor()->SetMenuStrings();
1002 }
1003
1004 void wxDocManager::OnUpdatePrint(wxUpdateUIEvent& event)
1005 {
1006     wxDocument *doc = GetCurrentDocument();
1007     event.Enable( (doc != (wxDocument*) NULL) );
1008 }
1009
1010 void wxDocManager::OnUpdatePrintSetup(wxUpdateUIEvent& event)
1011 {
1012     event.Enable( TRUE );
1013 }
1014
1015 void wxDocManager::OnUpdatePreview(wxUpdateUIEvent& event)
1016 {
1017     wxDocument *doc = GetCurrentDocument();
1018     event.Enable( (doc != (wxDocument*) NULL) );
1019 }
1020
1021 wxView *wxDocManager::GetCurrentView() const
1022 {
1023     if (m_currentView)
1024         return m_currentView;
1025     if (m_docs.Number() == 1)
1026     {
1027         wxDocument* doc = (wxDocument*) m_docs.First()->Data();
1028         return doc->GetFirstView();
1029     }
1030     return (wxView *) NULL;
1031 }
1032
1033 // Extend event processing to search the view's event table
1034 bool wxDocManager::ProcessEvent(wxEvent& event)
1035 {
1036     wxView* view = GetCurrentView();
1037     if (view)
1038     {
1039         if (view->ProcessEvent(event))
1040             return TRUE;
1041     }
1042     return wxEvtHandler::ProcessEvent(event);
1043 }
1044
1045 wxDocument *wxDocManager::CreateDocument(const wxString& path, long flags)
1046 {
1047     wxDocTemplate **templates = new wxDocTemplate *[m_templates.Number()];
1048     int i;
1049     int n = 0;
1050     for (i = 0; i < m_templates.Number(); i++)
1051     {
1052         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Nth(i)->Data());
1053         if (temp->IsVisible())
1054         {
1055             templates[n] = temp;
1056             n ++;
1057         }
1058     }
1059     if (n == 0)
1060     {
1061         delete[] templates;
1062         return (wxDocument *) NULL;
1063     }
1064
1065     // If we've reached the max number of docs, close the
1066     // first one.
1067     if (GetDocuments().Number() >= m_maxDocsOpen)
1068     {
1069         wxDocument *doc = (wxDocument *)GetDocuments().First()->Data();
1070         if (doc->Close())
1071         {
1072             // Implicitly deletes the document when
1073             // the last view is deleted
1074             doc->DeleteAllViews();
1075
1076             // Check we're really deleted
1077             if (m_docs.Member(doc))
1078                 delete doc;
1079         }
1080         else
1081         {
1082             delete[] templates;
1083             return (wxDocument *) NULL;
1084         }
1085     }
1086
1087     // New document: user chooses a template, unless there's only one.
1088     if (flags & wxDOC_NEW)
1089     {
1090         if (n == 1)
1091         {
1092             wxDocTemplate *temp = templates[0];
1093             delete[] templates;
1094             wxDocument *newDoc = temp->CreateDocument(path, flags);
1095             if (newDoc)
1096             {
1097                 newDoc->SetDocumentName(temp->GetDocumentName());
1098                 newDoc->SetDocumentTemplate(temp);
1099                 newDoc->OnNewDocument();
1100             }
1101             return newDoc;
1102         }
1103
1104         wxDocTemplate *temp = SelectDocumentType(templates, n);
1105         delete[] templates;
1106         if (temp)
1107         {
1108             wxDocument *newDoc = temp->CreateDocument(path, flags);
1109             if (newDoc)
1110             {
1111                 newDoc->SetDocumentName(temp->GetDocumentName());
1112                 newDoc->SetDocumentTemplate(temp);
1113                 newDoc->OnNewDocument();
1114             }
1115             return newDoc;
1116         }
1117         else
1118             return (wxDocument *) NULL;
1119     }
1120
1121     // Existing document
1122     wxDocTemplate *temp = (wxDocTemplate *) NULL;
1123
1124     wxString path2(wxT(""));
1125     if (path != wxT(""))
1126         path2 = path;
1127
1128     if (flags & wxDOC_SILENT)
1129         temp = FindTemplateForPath(path2);
1130     else
1131         temp = SelectDocumentPath(templates, n, path2, flags);
1132
1133     delete[] templates;
1134
1135     if (temp)
1136     {
1137         wxDocument *newDoc = temp->CreateDocument(path2, flags);
1138         if (newDoc)
1139         {
1140             newDoc->SetDocumentName(temp->GetDocumentName());
1141             newDoc->SetDocumentTemplate(temp);
1142             if (!newDoc->OnOpenDocument(path2))
1143             {
1144                 newDoc->DeleteAllViews();
1145                 // delete newDoc; // Implicitly deleted by DeleteAllViews
1146                 return (wxDocument *) NULL;
1147             }
1148             AddFileToHistory(path2);
1149         }
1150         return newDoc;
1151     }
1152
1153     return (wxDocument *) NULL;
1154 }
1155
1156 wxView *wxDocManager::CreateView(wxDocument *doc, long flags)
1157 {
1158     wxDocTemplate **templates = new wxDocTemplate *[m_templates.Number()];
1159     int n =0;
1160     int i;
1161     for (i = 0; i < m_templates.Number(); i++)
1162     {
1163         wxDocTemplate *temp = (wxDocTemplate *)(m_templates.Nth(i)->Data());
1164         if (temp->IsVisible())
1165         {
1166             if (temp->GetDocumentName() == doc->GetDocumentName())
1167             {
1168                 templates[n] = temp;
1169                 n ++;
1170             }
1171         }
1172     }
1173     if (n == 0)
1174     {
1175         delete[] templates;
1176         return (wxView *) NULL;
1177     }
1178     if (n == 1)
1179     {
1180         wxDocTemplate *temp = templates[0];
1181         delete[] templates;
1182         wxView *view = temp->CreateView(doc, flags);
1183         if (view)
1184             view->SetViewName(temp->GetViewName());
1185         return view;
1186     }
1187
1188     wxDocTemplate *temp = SelectViewType(templates, n);
1189     delete[] templates;
1190     if (temp)
1191     {
1192         wxView *view = temp->CreateView(doc, flags);
1193         if (view)
1194             view->SetViewName(temp->GetViewName());
1195         return view;
1196     }
1197     else
1198         return (wxView *) NULL;
1199 }
1200
1201 // Not yet implemented
1202 void wxDocManager::DeleteTemplate(wxDocTemplate *WXUNUSED(temp), long WXUNUSED(flags))
1203 {
1204 }
1205
1206 // Not yet implemented
1207 bool wxDocManager::FlushDoc(wxDocument *WXUNUSED(doc))
1208 {
1209     return FALSE;
1210 }
1211
1212 wxDocument *wxDocManager::GetCurrentDocument() const
1213 {
1214     wxView *view = GetCurrentView();
1215     if (view)
1216         return view->GetDocument();
1217     else
1218         return (wxDocument *) NULL;
1219 }
1220
1221 // Make a default document name
1222 bool wxDocManager::MakeDefaultName(wxString& name)
1223 {
1224     name.Printf(_("unnamed%d"), m_defaultDocumentNameCounter);
1225     m_defaultDocumentNameCounter++;
1226
1227     return TRUE;
1228 }
1229
1230 // Make a frame title (override this to do something different)
1231 // If docName is empty, a document is not currently active.
1232 wxString wxDocManager::MakeFrameTitle(wxDocument* doc)
1233 {
1234     wxString appName = wxTheApp->GetAppName();
1235     wxString title;
1236     if (!doc)
1237         title = appName;
1238     else
1239     {
1240         wxString docName;
1241         doc->GetPrintableName(docName);
1242         title = docName + wxString(_(" - ")) + appName;
1243     }
1244     return title;
1245 }
1246
1247
1248 // Not yet implemented
1249 wxDocTemplate *wxDocManager::MatchTemplate(const wxString& WXUNUSED(path))
1250 {
1251     return (wxDocTemplate *) NULL;
1252 }
1253
1254 // File history management
1255 void wxDocManager::AddFileToHistory(const wxString& file)
1256 {
1257     if (m_fileHistory)
1258         m_fileHistory->AddFileToHistory(file);
1259 }
1260
1261 void wxDocManager::RemoveFileFromHistory(int i)
1262 {
1263     if (m_fileHistory)
1264         m_fileHistory->RemoveFileFromHistory(i);
1265 }
1266
1267 wxString wxDocManager::GetHistoryFile(int i) const
1268 {
1269     wxString histFile;
1270
1271     if (m_fileHistory)
1272         histFile = m_fileHistory->GetHistoryFile(i);
1273
1274     return histFile;
1275 }
1276
1277 void wxDocManager::FileHistoryUseMenu(wxMenu *menu)
1278 {
1279     if (m_fileHistory)
1280         m_fileHistory->UseMenu(menu);
1281 }
1282
1283 void wxDocManager::FileHistoryRemoveMenu(wxMenu *menu)
1284 {
1285     if (m_fileHistory)
1286         m_fileHistory->RemoveMenu(menu);
1287 }
1288
1289 #if wxUSE_CONFIG
1290 void wxDocManager::FileHistoryLoad(wxConfigBase& config)
1291 {
1292     if (m_fileHistory)
1293         m_fileHistory->Load(config);
1294 }
1295
1296 void wxDocManager::FileHistorySave(wxConfigBase& config)
1297 {
1298     if (m_fileHistory)
1299         m_fileHistory->Save(config);
1300 }
1301 #endif
1302
1303 void wxDocManager::FileHistoryAddFilesToMenu(wxMenu* menu)
1304 {
1305     if (m_fileHistory)
1306         m_fileHistory->AddFilesToMenu(menu);
1307 }
1308
1309 void wxDocManager::FileHistoryAddFilesToMenu()
1310 {
1311     if (m_fileHistory)
1312         m_fileHistory->AddFilesToMenu();
1313 }
1314
1315 int wxDocManager::GetNoHistoryFiles() const
1316 {
1317     if (m_fileHistory)
1318         return m_fileHistory->GetNoHistoryFiles();
1319     else
1320         return 0;
1321 }
1322
1323
1324 // Find out the document template via matching in the document file format
1325 // against that of the template
1326 wxDocTemplate *wxDocManager::FindTemplateForPath(const wxString& path)
1327 {
1328     wxDocTemplate *theTemplate = (wxDocTemplate *) NULL;
1329
1330     // Find the template which this extension corresponds to
1331     int i;
1332     for (i = 0; i < m_templates.Number(); i++)
1333     {
1334         wxDocTemplate *temp = (wxDocTemplate *)m_templates.Nth(i)->Data();
1335         if ( temp->FileMatchesTemplate(path) )
1336         {
1337             theTemplate = temp;
1338             break;
1339         }
1340     }
1341     return theTemplate;
1342 }
1343
1344 // Try to get a more suitable parent frame than the top window,
1345 // for selection dialogs. Otherwise you may get an unexpected
1346 // window being activated when a dialog is shown.
1347 static wxWindow* wxFindSuitableParent()
1348 {
1349     wxWindow* parent = wxTheApp->GetTopWindow();
1350
1351     wxWindow* focusWindow = wxWindow::FindFocus();
1352     if (focusWindow)
1353     {
1354         while (focusWindow &&
1355                 !focusWindow->IsKindOf(CLASSINFO(wxDialog)) &&
1356                 !focusWindow->IsKindOf(CLASSINFO(wxFrame)))
1357
1358             focusWindow = focusWindow->GetParent();
1359
1360         if (focusWindow)
1361             parent = focusWindow;
1362     }
1363     return parent;
1364 }
1365
1366 // Prompts user to open a file, using file specs in templates.
1367 // How to implement in wxWindows? Must extend the file selector
1368 // dialog or implement own; OR match the extension to the
1369 // template extension.
1370
1371 wxDocTemplate *wxDocManager::SelectDocumentPath(wxDocTemplate **templates,
1372 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1373                                                 int noTemplates,
1374 #else
1375                                                 int WXUNUSED(noTemplates),
1376 #endif
1377                                                 wxString& path,
1378                                                 long WXUNUSED(flags),
1379                                                 bool WXUNUSED(save))
1380 {
1381     // We can only have multiple filters in Windows and GTK
1382 #if defined(__WXMSW__) || defined(__WXGTK__) || defined(__WXMAC__)
1383     wxString descrBuf;
1384
1385     int i;
1386     for (i = 0; i < noTemplates; i++)
1387     {
1388         if (templates[i]->IsVisible())
1389         {
1390             // add a '|' to separate this filter from the previous one
1391             if ( !descrBuf.IsEmpty() )
1392                 descrBuf << wxT('|');
1393
1394             descrBuf << templates[i]->GetDescription()
1395                 << wxT(" (") << templates[i]->GetFileFilter() << wxT(") |")
1396                 << templates[i]->GetFileFilter();
1397         }
1398     }
1399 #else
1400     wxString descrBuf = wxT("*.*");
1401 #endif
1402
1403     int FilterIndex = -1;
1404
1405     wxWindow* parent = wxFindSuitableParent();
1406
1407     wxString pathTmp = wxFileSelectorEx(_("Select a file"),
1408                                         m_lastDirectory,
1409                                         wxT(""),
1410                                         &FilterIndex,
1411                                         descrBuf,
1412                                         0,
1413                                         parent);
1414
1415     wxDocTemplate *theTemplate = (wxDocTemplate *)NULL;
1416     if (!pathTmp.IsEmpty())
1417     {
1418         if (!wxFileExists(pathTmp))
1419         {
1420             wxString msgTitle;
1421             if (!wxTheApp->GetAppName().IsEmpty())
1422                 msgTitle = wxTheApp->GetAppName();
1423             else
1424                 msgTitle = wxString(_("File error"));
1425
1426             (void)wxMessageBox(_("Sorry, could not open this file."), msgTitle, wxOK | wxICON_EXCLAMATION,
1427                 parent);
1428
1429             path = wxT("");
1430             return (wxDocTemplate *) NULL;
1431         }
1432         m_lastDirectory = wxPathOnly(pathTmp);
1433
1434         path = pathTmp;
1435
1436         // first choose the template using the extension, if this fails (i.e.
1437         // wxFileSelectorEx() didn't fill it), then use the path
1438         if ( FilterIndex != -1 )
1439             theTemplate = templates[FilterIndex];
1440         if ( !theTemplate )
1441             theTemplate = FindTemplateForPath(path);
1442     }
1443     else
1444     {
1445         path = wxT("");
1446     }
1447
1448     return theTemplate;
1449
1450 #if 0
1451     // In all other windowing systems, until we have more advanced
1452     // file selectors, we must select the document type (template) first, and
1453     // _then_ pop up the file selector.
1454     wxDocTemplate *temp = SelectDocumentType(templates, noTemplates);
1455     if (!temp)
1456         return (wxDocTemplate *) NULL;
1457
1458     wxChar *pathTmp = wxFileSelector(_("Select a file"), wxT(""), wxT(""),
1459             temp->GetDefaultExtension(),
1460             temp->GetFileFilter(),
1461             0, wxTheApp->GetTopWindow());
1462
1463     if (pathTmp)
1464     {
1465         path = pathTmp;
1466         return temp;
1467     }
1468     else
1469         return (wxDocTemplate *) NULL;
1470 #endif // 0
1471 }
1472
1473 wxDocTemplate *wxDocManager::SelectDocumentType(wxDocTemplate **templates,
1474                                                 int noTemplates, bool sort)
1475 {
1476     wxArrayString strings(sort);
1477     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1478     int i;
1479     int n = 0;
1480
1481         for (i = 0; i < noTemplates; i++)
1482         {
1483                 if (templates[i]->IsVisible())
1484                 {
1485                 int j;
1486             bool want = TRUE;
1487                         for (j = 0; j < n; j++)
1488                         {
1489                 //filter out NOT unique documents + view combinations
1490                                 if ( templates[i]->m_docTypeName == data[j]->m_docTypeName &&
1491                      templates[i]->m_viewTypeName == data[j]->m_viewTypeName
1492                    )
1493                     want = FALSE;
1494                         }
1495
1496             if ( want )
1497                         {
1498                         strings.Add(templates[i]->m_description);
1499
1500                                 data[n] = templates[i];
1501                                 n ++;
1502                         }
1503                 }
1504         }  // for
1505
1506         if (sort)
1507         {
1508                 // Yes, this will be slow, but template lists
1509                 // are typically short.
1510                 int j;
1511                 n = strings.Count();
1512                 for (i = 0; i < n; i++)
1513                 {
1514                         for (j = 0; j < noTemplates; j++)
1515                         {
1516                                 if (strings[i] == templates[j]->m_description)
1517                                         data[i] = templates[j];
1518                         }
1519                 }
1520         }
1521
1522     wxDocTemplate *theTemplate;
1523
1524     switch ( n )
1525     {
1526         case 0:
1527             // no visible templates, hence nothing to choose from
1528             theTemplate = NULL;
1529             break;
1530
1531         case 1:
1532             // don't propose the user to choose if he heas no choice
1533             theTemplate = data[0];
1534             break;
1535
1536         default:
1537             // propose the user to choose one of several
1538             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1539                           (
1540                             _("Select a document template"),
1541                             _("Templates"),
1542                             strings,
1543                             (void **)data,
1544                             wxFindSuitableParent()
1545                           );
1546     }
1547
1548     delete[] data;
1549
1550     return theTemplate;
1551 }
1552
1553 wxDocTemplate *wxDocManager::SelectViewType(wxDocTemplate **templates,
1554                                             int noTemplates, bool sort)
1555 {
1556     wxArrayString strings(sort);
1557     wxDocTemplate **data = new wxDocTemplate *[noTemplates];
1558     int i;
1559     int n = 0;
1560
1561     for (i = 0; i < noTemplates; i++)
1562     {
1563         wxDocTemplate *templ = templates[i];
1564         if ( templ->IsVisible() && !templ->GetViewName().empty() )
1565         {
1566                 int j;
1567             bool want = TRUE;
1568                         for (j = 0; j < n; j++)
1569                         {
1570                 //filter out NOT unique views
1571                                 if ( templates[i]->m_viewTypeName == data[j]->m_viewTypeName )
1572                     want = FALSE;
1573                         }
1574
1575             if ( want )
1576             {
1577                         strings.Add(templ->m_viewTypeName);
1578                                 data[n] = templ;
1579                                 n ++;
1580                         }
1581         }
1582     }
1583
1584         if (sort)
1585         {
1586                 // Yes, this will be slow, but template lists
1587                 // are typically short.
1588                 int j;
1589                 n = strings.Count();
1590                 for (i = 0; i < n; i++)
1591                 {
1592                         for (j = 0; j < noTemplates; j++)
1593                         {
1594                                 if (strings[i] == templates[j]->m_viewTypeName)
1595                                         data[i] = templates[j];
1596                         }
1597                 }
1598         }
1599
1600     wxDocTemplate *theTemplate;
1601
1602     // the same logic as above
1603     switch ( n )
1604     {
1605         case 0:
1606             theTemplate = (wxDocTemplate *)NULL;
1607             break;
1608
1609         case 1:
1610             theTemplate = data[0];
1611             break;
1612
1613         default:
1614             theTemplate = (wxDocTemplate *)wxGetSingleChoiceData
1615                           (
1616                             _("Select a document view"),
1617                             _("Views"),
1618                             strings,
1619                             (void **)data,
1620                             wxFindSuitableParent()
1621                           );
1622
1623     }
1624
1625     delete[] data;
1626     return theTemplate;
1627 }
1628
1629 void wxDocManager::AssociateTemplate(wxDocTemplate *temp)
1630 {
1631     if (!m_templates.Member(temp))
1632         m_templates.Append(temp);
1633 }
1634
1635 void wxDocManager::DisassociateTemplate(wxDocTemplate *temp)
1636 {
1637     m_templates.DeleteObject(temp);
1638 }
1639
1640 // Add and remove a document from the manager's list
1641 void wxDocManager::AddDocument(wxDocument *doc)
1642 {
1643     if (!m_docs.Member(doc))
1644         m_docs.Append(doc);
1645 }
1646
1647 void wxDocManager::RemoveDocument(wxDocument *doc)
1648 {
1649     m_docs.DeleteObject(doc);
1650 }
1651
1652 // Views or windows should inform the document manager
1653 // when a view is going in or out of focus
1654 void wxDocManager::ActivateView(wxView *view, bool activate, bool WXUNUSED(deleting))
1655 {
1656     // If we're deactiving, and if we're not actually deleting the view, then
1657     // don't reset the current view because we may be going to
1658     // a window without a view.
1659     // WHAT DID I MEAN BY THAT EXACTLY?
1660     /*
1661        if (deleting)
1662        {
1663        if (m_currentView == view)
1664        m_currentView = NULL;
1665        }
1666        else
1667      */
1668     {
1669         if (activate)
1670             m_currentView = view;
1671         else
1672             m_currentView = (wxView *) NULL;
1673     }
1674 }
1675
1676 // ----------------------------------------------------------------------------
1677 // Default document child frame
1678 // ----------------------------------------------------------------------------
1679
1680 BEGIN_EVENT_TABLE(wxDocChildFrame, wxFrame)
1681     EVT_ACTIVATE(wxDocChildFrame::OnActivate)
1682     EVT_CLOSE(wxDocChildFrame::OnCloseWindow)
1683 END_EVENT_TABLE()
1684
1685 wxDocChildFrame::wxDocChildFrame(wxDocument *doc,
1686                                  wxView *view,
1687                                  wxFrame *frame,
1688                                  wxWindowID id,
1689                                  const wxString& title,
1690                                  const wxPoint& pos,
1691                                  const wxSize& size,
1692                                  long style,
1693                                  const wxString& name)
1694                : wxFrame(frame, id, title, pos, size, style, name)
1695 {
1696     m_childDocument = doc;
1697     m_childView = view;
1698     if (view)
1699         view->SetFrame(this);
1700 }
1701
1702 wxDocChildFrame::~wxDocChildFrame()
1703 {
1704 }
1705
1706 // Extend event processing to search the view's event table
1707 bool wxDocChildFrame::ProcessEvent(wxEvent& event)
1708 {
1709     if (m_childView)
1710         m_childView->Activate(TRUE);
1711
1712     if ( !m_childView || ! m_childView->ProcessEvent(event) )
1713     {
1714         // Only hand up to the parent if it's a menu command
1715         if (!event.IsKindOf(CLASSINFO(wxCommandEvent)) || !GetParent() || !GetParent()->ProcessEvent(event))
1716             return wxEvtHandler::ProcessEvent(event);
1717         else
1718             return TRUE;
1719     }
1720     else
1721         return TRUE;
1722 }
1723
1724 void wxDocChildFrame::OnActivate(wxActivateEvent& event)
1725 {
1726     wxFrame::OnActivate(event);
1727
1728     if (m_childView)
1729         m_childView->Activate(event.GetActive());
1730 }
1731
1732 void wxDocChildFrame::OnCloseWindow(wxCloseEvent& event)
1733 {
1734     if (m_childView)
1735     {
1736         bool ans = FALSE;
1737         if (!event.CanVeto())
1738             ans = TRUE; // Must delete.
1739         else
1740             ans = m_childView->Close(FALSE); // FALSE means don't delete associated window
1741
1742         if (ans)
1743         {
1744             m_childView->Activate(FALSE);
1745             delete m_childView;
1746             m_childView = (wxView *) NULL;
1747             m_childDocument = (wxDocument *) NULL;
1748
1749             this->Destroy();
1750         }
1751         else
1752             event.Veto();
1753     }
1754     else
1755         event.Veto();
1756 }
1757
1758 // ----------------------------------------------------------------------------
1759 // Default parent frame
1760 // ----------------------------------------------------------------------------
1761
1762 BEGIN_EVENT_TABLE(wxDocParentFrame, wxFrame)
1763     EVT_MENU(wxID_EXIT, wxDocParentFrame::OnExit)
1764     EVT_MENU_RANGE(wxID_FILE1, wxID_FILE9, wxDocParentFrame::OnMRUFile)
1765     EVT_CLOSE(wxDocParentFrame::OnCloseWindow)
1766 END_EVENT_TABLE()
1767
1768 wxDocParentFrame::wxDocParentFrame(wxDocManager *manager,
1769                                    wxFrame *frame,
1770                                    wxWindowID id,
1771                                    const wxString& title,
1772                                    const wxPoint& pos,
1773                                    const wxSize& size,
1774                                    long style,
1775                                    const wxString& name)
1776                 : wxFrame(frame, id, title, pos, size, style, name)
1777 {
1778     m_docManager = manager;
1779 }
1780
1781 void wxDocParentFrame::OnExit(wxCommandEvent& WXUNUSED(event))
1782 {
1783     Close();
1784 }
1785
1786 void wxDocParentFrame::OnMRUFile(wxCommandEvent& event)
1787 {
1788     int n = event.GetId() - wxID_FILE1;  // the index in MRU list
1789     wxString filename(m_docManager->GetHistoryFile(n));
1790     if ( !filename.IsEmpty() )
1791     {
1792         // verify that the file exists before doing anything else
1793         if ( wxFile::Exists(filename) )
1794         {
1795             // try to open it
1796             (void)m_docManager->CreateDocument(filename, wxDOC_SILENT);
1797         }
1798         else
1799         {
1800             // remove the bogus filename from the MRU list and notify the user
1801             // about it
1802             m_docManager->RemoveFileFromHistory(n);
1803
1804             wxLogError(_("The file '%s' doesn't exist and couldn't be opened.\nIt has been removed from the most recently used files list."),
1805                        filename.c_str());
1806         }
1807     }
1808 }
1809
1810 // Extend event processing to search the view's event table
1811 bool wxDocParentFrame::ProcessEvent(wxEvent& event)
1812 {
1813     // Try the document manager, then do default processing
1814     if (!m_docManager || !m_docManager->ProcessEvent(event))
1815         return wxEvtHandler::ProcessEvent(event);
1816     else
1817         return TRUE;
1818 }
1819
1820 // Define the behaviour for the frame closing
1821 // - must delete all frames except for the main one.
1822 void wxDocParentFrame::OnCloseWindow(wxCloseEvent& event)
1823 {
1824     if (m_docManager->Clear(!event.CanVeto()))
1825     {
1826         this->Destroy();
1827     }
1828     else
1829         event.Veto();
1830 }
1831
1832 #if wxUSE_PRINTING_ARCHITECTURE
1833
1834 wxDocPrintout::wxDocPrintout(wxView *view, const wxString& title)
1835              : wxPrintout(title)
1836 {
1837     m_printoutView = view;
1838 }
1839
1840 bool wxDocPrintout::OnPrintPage(int WXUNUSED(page))
1841 {
1842     wxDC *dc = GetDC();
1843
1844     // Get the logical pixels per inch of screen and printer
1845     int ppiScreenX, ppiScreenY;
1846     GetPPIScreen(&ppiScreenX, &ppiScreenY);
1847     int ppiPrinterX, ppiPrinterY;
1848     GetPPIPrinter(&ppiPrinterX, &ppiPrinterY);
1849
1850     // This scales the DC so that the printout roughly represents the
1851     // the screen scaling. The text point size _should_ be the right size
1852     // but in fact is too small for some reason. This is a detail that will
1853     // need to be addressed at some point but can be fudged for the
1854     // moment.
1855     float scale = (float)((float)ppiPrinterX/(float)ppiScreenX);
1856
1857     // Now we have to check in case our real page size is reduced
1858     // (e.g. because we're drawing to a print preview memory DC)
1859     int pageWidth, pageHeight;
1860     int w, h;
1861     dc->GetSize(&w, &h);
1862     GetPageSizePixels(&pageWidth, &pageHeight);
1863
1864     // If printer pageWidth == current DC width, then this doesn't
1865     // change. But w might be the preview bitmap width, so scale down.
1866     float overallScale = scale * (float)(w/(float)pageWidth);
1867     dc->SetUserScale(overallScale, overallScale);
1868
1869     if (m_printoutView)
1870     {
1871         m_printoutView->OnDraw(dc);
1872     }
1873     return TRUE;
1874 }
1875
1876 bool wxDocPrintout::HasPage(int pageNum)
1877 {
1878     return (pageNum == 1);
1879 }
1880
1881 bool wxDocPrintout::OnBeginDocument(int startPage, int endPage)
1882 {
1883     if (!wxPrintout::OnBeginDocument(startPage, endPage))
1884         return FALSE;
1885
1886     return TRUE;
1887 }
1888
1889 void wxDocPrintout::GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo)
1890 {
1891     *minPage = 1;
1892     *maxPage = 1;
1893     *selPageFrom = 1;
1894     *selPageTo = 1;
1895 }
1896
1897 #endif // wxUSE_PRINTING_ARCHITECTURE
1898
1899 // ----------------------------------------------------------------------------
1900 // File history processor
1901 // ----------------------------------------------------------------------------
1902
1903 wxFileHistory::wxFileHistory(int maxFiles)
1904 {
1905     m_fileMaxFiles = maxFiles;
1906     m_fileHistoryN = 0;
1907     m_fileHistory = new wxChar *[m_fileMaxFiles];
1908 }
1909
1910 wxFileHistory::~wxFileHistory()
1911 {
1912     int i;
1913     for (i = 0; i < m_fileHistoryN; i++)
1914         delete[] m_fileHistory[i];
1915     delete[] m_fileHistory;
1916 }
1917
1918 // File history management
1919 void wxFileHistory::AddFileToHistory(const wxString& file)
1920 {
1921     int i;
1922
1923     // Check we don't already have this file
1924     for (i = 0; i < m_fileHistoryN; i++)
1925     {
1926         if ( m_fileHistory[i] && (file == m_fileHistory[i]) )
1927         {
1928             // we do have it, move it to the top of the history
1929             RemoveFileFromHistory (i);
1930             AddFileToHistory (file);
1931             return;
1932         }
1933     }
1934
1935     // if we already have a full history, delete the one at the end
1936     if ( m_fileMaxFiles == m_fileHistoryN )
1937     {
1938         RemoveFileFromHistory (m_fileHistoryN - 1);
1939         AddFileToHistory (file);
1940         return;
1941     }
1942
1943     // Add to the project file history:
1944     // Move existing files (if any) down so we can insert file at beginning.
1945     if (m_fileHistoryN < m_fileMaxFiles)
1946     {
1947         wxNode* node = m_fileMenus.First();
1948         while (node)
1949         {
1950             wxMenu* menu = (wxMenu*) node->Data();
1951             if (m_fileHistoryN == 0)
1952                 menu->AppendSeparator();
1953             menu->Append(wxID_FILE1+m_fileHistoryN, _("[EMPTY]"));
1954             node = node->Next();
1955         }
1956         m_fileHistoryN ++;
1957     }
1958     // Shuffle filenames down
1959     for (i = (m_fileHistoryN-1); i > 0; i--)
1960     {
1961         m_fileHistory[i] = m_fileHistory[i-1];
1962     }
1963     m_fileHistory[0] = copystring(file);
1964
1965     // this is the directory of the last opened file
1966     wxString pathCurrent;
1967     wxSplitPath( m_fileHistory[0], &pathCurrent, NULL, NULL );
1968     for (i = 0; i < m_fileHistoryN; i++)
1969     {
1970         if ( m_fileHistory[i] )
1971         {
1972             // if in same directory just show the filename; otherwise the full
1973             // path
1974             wxString pathInMenu, path, filename, ext;
1975             wxSplitPath( m_fileHistory[i], &path, &filename, &ext );
1976             if ( path == pathCurrent )
1977             {
1978                 pathInMenu = filename;
1979                 if ( !ext.empty() )
1980                     pathInMenu = pathInMenu + wxFILE_SEP_EXT + ext;
1981             }
1982             else
1983             {
1984                 // absolute path; could also set relative path
1985                 pathInMenu = m_fileHistory[i];
1986             }
1987
1988             wxString buf;
1989             buf.Printf(s_MRUEntryFormat, i + 1, pathInMenu.c_str());
1990             wxNode* node = m_fileMenus.First();
1991             while (node)
1992             {
1993                 wxMenu* menu = (wxMenu*) node->Data();
1994                 menu->SetLabel(wxID_FILE1 + i, buf);
1995                 node = node->Next();
1996             }
1997         }
1998     }
1999 }
2000
2001 void wxFileHistory::RemoveFileFromHistory(int i)
2002 {
2003     wxCHECK_RET( i < m_fileHistoryN,
2004                  wxT("invalid index in wxFileHistory::RemoveFileFromHistory") );
2005
2006         // delete the element from the array (could use memmove() too...)
2007         delete [] m_fileHistory[i];
2008
2009         int j;
2010         for ( j = i; j < m_fileHistoryN - 1; j++ )
2011         {
2012             m_fileHistory[j] = m_fileHistory[j + 1];
2013         }
2014
2015     wxNode* node = m_fileMenus.First();
2016     while ( node )
2017     {
2018         wxMenu* menu = (wxMenu*) node->Data();
2019
2020
2021         // shuffle filenames up
2022         wxString buf;
2023         for ( j = i; j < m_fileHistoryN - 1; j++ )
2024         {
2025             buf.Printf(s_MRUEntryFormat, j + 1, m_fileHistory[j]);
2026             menu->SetLabel(wxID_FILE1 + j, buf);
2027         }
2028
2029         node = node->Next();
2030
2031         // delete the last menu item which is unused now
2032         if (menu->FindItem(wxID_FILE1 + m_fileHistoryN - 1))
2033         menu->Delete(wxID_FILE1 + m_fileHistoryN - 1);
2034
2035         // delete the last separator too if no more files are left
2036         if ( m_fileHistoryN == 1 )
2037         {
2038             wxMenuItemList::Node *node = menu->GetMenuItems().GetLast();
2039             if ( node )
2040             {
2041                 wxMenuItem *menuItem = node->GetData();
2042                 if ( menuItem->IsSeparator() )
2043                 {
2044                     menu->Delete(menuItem);
2045                 }
2046                 //else: should we search backwards for the last separator?
2047             }
2048             //else: menu is empty somehow
2049         }
2050     }
2051
2052     m_fileHistoryN--;
2053 }
2054
2055 wxString wxFileHistory::GetHistoryFile(int i) const
2056 {
2057     wxString s;
2058     if ( i < m_fileHistoryN )
2059     {
2060         s = m_fileHistory[i];
2061     }
2062     else
2063     {
2064         wxFAIL_MSG( wxT("bad index in wxFileHistory::GetHistoryFile") );
2065     }
2066
2067     return s;
2068 }
2069
2070 void wxFileHistory::UseMenu(wxMenu *menu)
2071 {
2072     if (!m_fileMenus.Member(menu))
2073         m_fileMenus.Append(menu);
2074 }
2075
2076 void wxFileHistory::RemoveMenu(wxMenu *menu)
2077 {
2078     m_fileMenus.DeleteObject(menu);
2079 }
2080
2081 #if wxUSE_CONFIG
2082 void wxFileHistory::Load(wxConfigBase& config)
2083 {
2084     m_fileHistoryN = 0;
2085     wxString buf;
2086     buf.Printf(wxT("file%d"), m_fileHistoryN+1);
2087     wxString historyFile;
2088     while ((m_fileHistoryN <= m_fileMaxFiles) && config.Read(buf, &historyFile) && (historyFile != wxT("")))
2089     {
2090         m_fileHistory[m_fileHistoryN] = copystring((const wxChar*) historyFile);
2091         m_fileHistoryN ++;
2092         buf.Printf(wxT("file%d"), m_fileHistoryN+1);
2093         historyFile = wxT("");
2094     }
2095     AddFilesToMenu();
2096 }
2097
2098 void wxFileHistory::Save(wxConfigBase& config)
2099 {
2100     int i;
2101     for (i = 0; i < m_fileHistoryN; i++)
2102     {
2103         wxString buf;
2104         buf.Printf(wxT("file%d"), i+1);
2105         config.Write(buf, wxString(m_fileHistory[i]));
2106     }
2107 }
2108 #endif // wxUSE_CONFIG
2109
2110 void wxFileHistory::AddFilesToMenu()
2111 {
2112     if (m_fileHistoryN > 0)
2113     {
2114         wxNode* node = m_fileMenus.First();
2115         while (node)
2116         {
2117             wxMenu* menu = (wxMenu*) node->Data();
2118             menu->AppendSeparator();
2119             int i;
2120             for (i = 0; i < m_fileHistoryN; i++)
2121             {
2122                 if (m_fileHistory[i])
2123                 {
2124                     wxString buf;
2125                     buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2126                     menu->Append(wxID_FILE1+i, buf);
2127                 }
2128             }
2129             node = node->Next();
2130         }
2131     }
2132 }
2133
2134 void wxFileHistory::AddFilesToMenu(wxMenu* menu)
2135 {
2136     if (m_fileHistoryN > 0)
2137     {
2138         menu->AppendSeparator();
2139         int i;
2140         for (i = 0; i < m_fileHistoryN; i++)
2141         {
2142             if (m_fileHistory[i])
2143             {
2144                 wxString buf;
2145                 buf.Printf(s_MRUEntryFormat, i+1, m_fileHistory[i]);
2146                 menu->Append(wxID_FILE1+i, buf);
2147             }
2148         }
2149     }
2150 }
2151
2152 // ----------------------------------------------------------------------------
2153 // Permits compatibility with existing file formats and functions that
2154 // manipulate files directly
2155 // ----------------------------------------------------------------------------
2156
2157 #if wxUSE_STD_IOSTREAM
2158 bool wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream)
2159 {
2160     FILE *fd1;
2161     int ch;
2162
2163     if ((fd1 = wxFopen (filename.fn_str(), _T("rb"))) == NULL)
2164         return FALSE;
2165
2166     while ((ch = getc (fd1)) != EOF)
2167         stream << (unsigned char)ch;
2168
2169     fclose (fd1);
2170     return TRUE;
2171 }
2172
2173 bool wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename)
2174 {
2175     FILE *fd1;
2176     int ch;
2177
2178     if ((fd1 = wxFopen (filename.fn_str(), _T("wb"))) == NULL)
2179     {
2180         return FALSE;
2181     }
2182
2183     while (!stream.eof())
2184     {
2185         ch = stream.get();
2186         if (!stream.eof())
2187             putc (ch, fd1);
2188     }
2189     fclose (fd1);
2190     return TRUE;
2191 }
2192 #else
2193 bool wxTransferFileToStream(const wxString& filename, wxOutputStream& stream)
2194 {
2195     FILE *fd1;
2196     int ch;
2197
2198     if ((fd1 = wxFopen (filename, wxT("rb"))) == NULL)
2199         return FALSE;
2200
2201     while ((ch = getc (fd1)) != EOF)
2202         stream.PutC((char) ch);
2203
2204     fclose (fd1);
2205     return TRUE;
2206 }
2207
2208 bool wxTransferStreamToFile(wxInputStream& stream, const wxString& filename)
2209 {
2210     FILE *fd1;
2211     char ch;
2212
2213     if ((fd1 = wxFopen (filename, wxT("wb"))) == NULL)
2214     {
2215         return FALSE;
2216     }
2217
2218     int len = stream.GetSize();
2219     // TODO: is this the correct test for EOF?
2220     while (stream.TellI() < (len - 1))
2221     {
2222         ch = stream.GetC();
2223         putc (ch, fd1);
2224     }
2225     fclose (fd1);
2226     return TRUE;
2227 }
2228 #endif
2229
2230 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
2231