include/wx/docview.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        docview.h
   3 // Purpose:     Doc/View classes
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c)
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DOCH__
  13 #define _WX_DOCH__
  14
  15 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16     #pragma interface "docview.h"
  17 #endif
  18
  19 #include "wx/defs.h"
  20
  21 #if wxUSE_DOC_VIEW_ARCHITECTURE
  22
  23 #include "wx/list.h"
  24 #include "wx/cmndata.h"
  25 #include "wx/string.h"
  26 #include "wx/frame.h"
  27
  28 #if wxUSE_PRINTING_ARCHITECTURE
  29     #include "wx/print.h"
  30 #endif
  31
  32 class WXDLLEXPORT wxWindow;
  33 class WXDLLEXPORT wxDocument;
  34 class WXDLLEXPORT wxView;
  35 class WXDLLEXPORT wxDocTemplate;
  36 class WXDLLEXPORT wxDocManager;
  37 class WXDLLEXPORT wxPrintInfo;
  38 class WXDLLEXPORT wxCommandProcessor;
  39 class WXDLLEXPORT wxFileHistory;
  40 class WXDLLEXPORT wxConfigBase;
  41
  42 #if wxUSE_STD_IOSTREAM
  43   #include "wx/iosfwrap.h"
  44 #else
  45   #include "wx/stream.h"
  46 #endif
  47
  48 // Document manager flags
  49 enum
  50 {
  51     wxDOC_SDI = 1,
  52     wxDOC_MDI,
  53     wxDOC_NEW,
  54     wxDOC_SILENT,
  55     wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI
  56 };
  57
  58 // Document template flags
  59 enum
  60 {
  61     wxTEMPLATE_VISIBLE = 1,
  62     wxTEMPLATE_INVISIBLE,
  63     wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE
  64 };
  65
  66 #define wxMAX_FILE_HISTORY 9
  67
  68 class WXDLLEXPORT wxDocument : public wxEvtHandler
  69 {
  70 public:
  71     wxDocument(wxDocument *parent = (wxDocument *) NULL);
  72     ~wxDocument();
  73
  74     // accessors
  75     void SetFilename(const wxString& filename, bool notifyViews = FALSE);
  76     wxString GetFilename() const { return m_documentFile; }
  77
  78     void SetTitle(const wxString& title) { m_documentTitle = title; };
  79     wxString GetTitle() const { return m_documentTitle; }
  80
  81     void SetDocumentName(const wxString& name) { m_documentTypeName = name; };
  82     wxString GetDocumentName() const { return m_documentTypeName; }
  83
  84     bool GetDocumentSaved() const { return m_savedYet; }
  85     void SetDocumentSaved(bool saved = TRUE) { m_savedYet = saved; }
  86
  87     virtual bool Close();
  88     virtual bool Save();
  89     virtual bool SaveAs();
  90     virtual bool Revert();
  91
  92 #if wxUSE_STD_IOSTREAM
  93     virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
  94     virtual wxSTD istream& LoadObject(wxSTD istream& stream);
  95 #else
  96     virtual wxOutputStream& SaveObject(wxOutputStream& stream);
  97     virtual wxInputStream& LoadObject(wxInputStream& stream);
  98 #endif
  99
 100     // Called by wxWidgets
 101     virtual bool OnSaveDocument(const wxString& filename);
 102     virtual bool OnOpenDocument(const wxString& filename);
 103     virtual bool OnNewDocument();
 104     virtual bool OnCloseDocument();
 105
 106     // Prompts for saving if about to close a modified document. Returns TRUE
 107     // if ok to close the document (may have saved in the meantime, or set
 108     // modified to FALSE)
 109     virtual bool OnSaveModified();
 110
 111     // Called by framework if created automatically by the default document
 112     // manager: gives document a chance to initialise and (usually) create a
 113     // view
 114     virtual bool OnCreate(const wxString& path, long flags);
 115
 116     // By default, creates a base wxCommandProcessor.
 117     virtual wxCommandProcessor *OnCreateCommandProcessor();
 118     virtual wxCommandProcessor *GetCommandProcessor() const { return m_commandProcessor; }
 119     virtual void SetCommandProcessor(wxCommandProcessor *proc) { m_commandProcessor = proc; }
 120
 121     // Called after a view is added or removed. The default implementation
 122     // deletes the document if this is there are no more views.
 123     virtual void OnChangedViewList();
 124
 125     virtual bool DeleteContents();
 126
 127     virtual bool Draw(wxDC&);
 128     virtual bool IsModified() const { return m_documentModified; }
 129     virtual void Modify(bool mod) { m_documentModified = mod; }
 130
 131     virtual bool AddView(wxView *view);
 132     virtual bool RemoveView(wxView *view);
 133     wxList& GetViews() const { return (wxList&) m_documentViews; }
 134     wxView *GetFirstView() const;
 135
 136     virtual void UpdateAllViews(wxView *sender = (wxView *) NULL, wxObject *hint = (wxObject *) NULL);
 137     virtual void NotifyClosing();
 138
 139     // Remove all views (because we're closing the document)
 140     virtual bool DeleteAllViews();
 141
 142     // Other stuff
 143     virtual wxDocManager *GetDocumentManager() const;
 144     virtual wxDocTemplate *GetDocumentTemplate() const { return m_documentTemplate; }
 145     virtual void SetDocumentTemplate(wxDocTemplate *temp) { m_documentTemplate = temp; }
 146
 147     // Get title, or filename if no title, else [unnamed]
 148     virtual bool GetPrintableName(wxString& buf) const;
 149
 150     // Returns a window that can be used as a parent for document-related
 151     // dialogs. Override if necessary.
 152     virtual wxWindow *GetDocumentWindow() const;
 153
 154 protected:
 155     wxList                m_documentViews;
 156     wxString              m_documentFile;
 157     wxString              m_documentTitle;
 158     wxString              m_documentTypeName;
 159     wxDocTemplate*        m_documentTemplate;
 160     bool                  m_documentModified;
 161     wxDocument*           m_documentParent;
 162     wxCommandProcessor*   m_commandProcessor;
 163     bool                  m_savedYet;
 164
 165 private:
 166     DECLARE_ABSTRACT_CLASS(wxDocument)
 167     DECLARE_NO_COPY_CLASS(wxDocument)
 168 };
 169
 170 class WXDLLEXPORT wxView: public wxEvtHandler
 171 {
 172 public:
 173     //  wxView(wxDocument *doc = (wxDocument *) NULL);
 174     wxView();
 175     ~wxView();
 176
 177     wxDocument *GetDocument() const { return m_viewDocument; }
 178     virtual void SetDocument(wxDocument *doc);
 179
 180     wxString GetViewName() const { return m_viewTypeName; }
 181     void SetViewName(const wxString& name) { m_viewTypeName = name; };
 182
 183     wxWindow *GetFrame() const { return m_viewFrame ; }
 184     void SetFrame(wxWindow *frame) { m_viewFrame = frame; }
 185
 186     virtual void OnActivateView(bool activate, wxView *activeView, wxView *deactiveView);
 187     virtual void OnDraw(wxDC *dc) = 0;
 188     virtual void OnPrint(wxDC *dc, wxObject *info);
 189     virtual void OnUpdate(wxView *sender, wxObject *hint = (wxObject *) NULL);
 190     virtual void OnClosingDocument() {};
 191     virtual void OnChangeFilename();
 192
 193     // Called by framework if created automatically by the default document
 194     // manager class: gives view a chance to initialise
 195     virtual bool OnCreate(wxDocument *WXUNUSED(doc), long WXUNUSED(flags)) { return TRUE; };
 196
 197     // Checks if the view is the last one for the document; if so, asks user
 198     // to confirm save data (if modified). If ok, deletes itself and returns
 199     // TRUE.
 200     virtual bool Close(bool deleteWindow = TRUE);
 201
 202     // Override to do cleanup/veto close
 203     virtual bool OnClose(bool deleteWindow);
 204
 205     // Extend event processing to search the document's event table
 206     virtual bool ProcessEvent(wxEvent& event);
 207
 208     // A view's window can call this to notify the view it is (in)active.
 209     // The function then notifies the document manager.
 210     virtual void Activate(bool activate);
 211
 212     wxDocManager *GetDocumentManager() const
 213         { return m_viewDocument->GetDocumentManager(); }
 214
 215 #if wxUSE_PRINTING_ARCHITECTURE
 216     virtual wxPrintout *OnCreatePrintout();
 217 #endif
 218
 219 protected:
 220     wxDocument*       m_viewDocument;
 221     wxString          m_viewTypeName;
 222     wxWindow*         m_viewFrame;
 223
 224 private:
 225     DECLARE_ABSTRACT_CLASS(wxView)
 226     DECLARE_NO_COPY_CLASS(wxView)
 227 };
 228
 229 // Represents user interface (and other) properties of documents and views
 230 class WXDLLEXPORT wxDocTemplate: public wxObject
 231 {
 232
 233 friend class WXDLLEXPORT wxDocManager;
 234
 235 public:
 236     // Associate document and view types. They're for identifying what view is
 237     // associated with what template/document type
 238     wxDocTemplate(wxDocManager *manager,
 239                   const wxString& descr,
 240                   const wxString& filter,
 241                   const wxString& dir,
 242                   const wxString& ext,
 243                   const wxString& docTypeName,
 244                   const wxString& viewTypeName,
 245                   wxClassInfo *docClassInfo = (wxClassInfo *) NULL,
 246                   wxClassInfo *viewClassInfo = (wxClassInfo *)NULL,
 247                   long flags = wxDEFAULT_TEMPLATE_FLAGS);
 248
 249     ~wxDocTemplate();
 250
 251     // By default, these two member functions dynamically creates document and
 252     // view using dynamic instance construction. Override these if you need a
 253     // different method of construction.
 254     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 255     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 256
 257     // Helper method for CreateDocument; also allows you to do your own document
 258     // creation
 259     virtual bool InitDocument(wxDocument* doc, const wxString& path, long flags = 0);
 260
 261     wxString GetDefaultExtension() const { return m_defaultExt; };
 262     wxString GetDescription() const { return m_description; }
 263     wxString GetDirectory() const { return m_directory; };
 264     wxDocManager *GetDocumentManager() const { return m_documentManager; }
 265     void SetDocumentManager(wxDocManager *manager) { m_documentManager = manager; }
 266     wxString GetFileFilter() const { return m_fileFilter; };
 267     long GetFlags() const { return m_flags; };
 268     virtual wxString GetViewName() const { return m_viewTypeName; }
 269     virtual wxString GetDocumentName() const { return m_docTypeName; }
 270
 271     void SetFileFilter(const wxString& filter) { m_fileFilter = filter; };
 272     void SetDirectory(const wxString& dir) { m_directory = dir; };
 273     void SetDescription(const wxString& descr) { m_description = descr; };
 274     void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; };
 275     void SetFlags(long flags) { m_flags = flags; };
 276
 277     bool IsVisible() const { return ((m_flags & wxTEMPLATE_VISIBLE) == wxTEMPLATE_VISIBLE); }
 278
 279     wxClassInfo* GetDocClassInfo() const { return m_docClassInfo; }
 280     wxClassInfo* GetViewClassInfo() const { return m_viewClassInfo; }
 281
 282     virtual bool FileMatchesTemplate(const wxString& path);
 283
 284 protected:
 285     long              m_flags;
 286     wxString          m_fileFilter;
 287     wxString          m_directory;
 288     wxString          m_description;
 289     wxString          m_defaultExt;
 290     wxString          m_docTypeName;
 291     wxString          m_viewTypeName;
 292     wxDocManager*     m_documentManager;
 293
 294     // For dynamic creation of appropriate instances.
 295     wxClassInfo*      m_docClassInfo;
 296     wxClassInfo*      m_viewClassInfo;
 297
 298 private:
 299     DECLARE_CLASS(wxDocTemplate)
 300     DECLARE_NO_COPY_CLASS(wxDocTemplate)
 301 };
 302
 303 // One object of this class may be created in an application, to manage all
 304 // the templates and documents.
 305 class WXDLLEXPORT wxDocManager: public wxEvtHandler
 306 {
 307 public:
 308     wxDocManager(long flags = wxDEFAULT_DOCMAN_FLAGS, bool initialize = TRUE);
 309     ~wxDocManager();
 310
 311     virtual bool Initialize();
 312
 313     // Handlers for common user commands
 314     void OnFileClose(wxCommandEvent& event);
 315     void OnFileCloseAll(wxCommandEvent& event);
 316     void OnFileNew(wxCommandEvent& event);
 317     void OnFileOpen(wxCommandEvent& event);
 318     void OnFileRevert(wxCommandEvent& event);
 319     void OnFileSave(wxCommandEvent& event);
 320     void OnFileSaveAs(wxCommandEvent& event);
 321     void OnPrint(wxCommandEvent& event);
 322     void OnPrintSetup(wxCommandEvent& event);
 323     void OnPreview(wxCommandEvent& event);
 324     void OnUndo(wxCommandEvent& event);
 325     void OnRedo(wxCommandEvent& event);
 326
 327     // Handlers for UI update commands
 328     void OnUpdateFileOpen(wxUpdateUIEvent& event);
 329     void OnUpdateFileClose(wxUpdateUIEvent& event);
 330     void OnUpdateFileRevert(wxUpdateUIEvent& event);
 331     void OnUpdateFileNew(wxUpdateUIEvent& event);
 332     void OnUpdateFileSave(wxUpdateUIEvent& event);
 333     void OnUpdateFileSaveAs(wxUpdateUIEvent& event);
 334     void OnUpdateUndo(wxUpdateUIEvent& event);
 335     void OnUpdateRedo(wxUpdateUIEvent& event);
 336
 337     void OnUpdatePrint(wxUpdateUIEvent& event);
 338     void OnUpdatePrintSetup(wxUpdateUIEvent& event);
 339     void OnUpdatePreview(wxUpdateUIEvent& event);
 340
 341     // Extend event processing to search the view's event table
 342     virtual bool ProcessEvent(wxEvent& event);
 343
 344     // called when file format detection didn't work, can be overridden to do
 345     // something in this case
 346     virtual void OnOpenFileFailure() { }
 347
 348     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 349     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 350     virtual void DeleteTemplate(wxDocTemplate *temp, long flags = 0);
 351     virtual bool FlushDoc(wxDocument *doc);
 352     virtual wxDocTemplate *MatchTemplate(const wxString& path);
 353     virtual wxDocTemplate *SelectDocumentPath(wxDocTemplate **templates,
 354             int noTemplates, wxString& path, long flags, bool save = FALSE);
 355     virtual wxDocTemplate *SelectDocumentType(wxDocTemplate **templates,
 356             int noTemplates, bool sort = FALSE);
 357     virtual wxDocTemplate *SelectViewType(wxDocTemplate **templates,
 358             int noTemplates, bool sort = FALSE);
 359     virtual wxDocTemplate *FindTemplateForPath(const wxString& path);
 360
 361     void AssociateTemplate(wxDocTemplate *temp);
 362     void DisassociateTemplate(wxDocTemplate *temp);
 363
 364     wxDocument *GetCurrentDocument() const;
 365
 366     void SetMaxDocsOpen(int n) { m_maxDocsOpen = n; }
 367     int GetMaxDocsOpen() const { return m_maxDocsOpen; }
 368
 369     // Add and remove a document from the manager's list
 370     void AddDocument(wxDocument *doc);
 371     void RemoveDocument(wxDocument *doc);
 372
 373     // closes all currently open documents
 374     bool CloseDocuments(bool force = TRUE);
 375
 376     // closes the specified document
 377     bool CloseDocument(wxDocument* doc, bool force = FALSE);
 378
 379     // Clear remaining documents and templates
 380     bool Clear(bool force = TRUE);
 381
 382     // Views or windows should inform the document manager
 383     // when a view is going in or out of focus
 384     virtual void ActivateView(wxView *view, bool activate = TRUE);
 385     virtual wxView *GetCurrentView() const;
 386
 387     wxList& GetDocuments() { return m_docs; }
 388     wxList& GetTemplates() { return m_templates; }
 389
 390     // Make a default document name
 391     virtual bool MakeDefaultName(wxString& buf);
 392
 393     // Make a frame title (override this to do something different)
 394     virtual wxString MakeFrameTitle(wxDocument* doc);
 395
 396     virtual wxFileHistory *OnCreateFileHistory();
 397     virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; }
 398
 399     // File history management
 400     virtual void AddFileToHistory(const wxString& file);
 401     virtual void RemoveFileFromHistory(size_t i);
 402     virtual size_t GetHistoryFilesCount() const;
 403     virtual wxString GetHistoryFile(size_t i) const;
 404     virtual void FileHistoryUseMenu(wxMenu *menu);
 405     virtual void FileHistoryRemoveMenu(wxMenu *menu);
 406 #if wxUSE_CONFIG
 407     virtual void FileHistoryLoad(wxConfigBase& config);
 408     virtual void FileHistorySave(wxConfigBase& config);
 409 #endif // wxUSE_CONFIG
 410
 411     virtual void FileHistoryAddFilesToMenu();
 412     virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
 413
 414     wxString GetLastDirectory() const { return m_lastDirectory; }
 415     void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
 416
 417     // Get the current document manager
 418     static wxDocManager* GetDocumentManager() { return sm_docManager; }
 419
 420     // deprecated, use GetHistoryFilesCount() instead
 421     wxDEPRECATED( size_t GetNoHistoryFiles() const );
 422
 423 protected:
 424     long              m_flags;
 425     int               m_defaultDocumentNameCounter;
 426     int               m_maxDocsOpen;
 427     wxList            m_docs;
 428     wxList            m_templates;
 429     wxView*           m_currentView;
 430     wxFileHistory*    m_fileHistory;
 431     wxString          m_lastDirectory;
 432     static wxDocManager* sm_docManager;
 433
 434     DECLARE_EVENT_TABLE()
 435     DECLARE_DYNAMIC_CLASS(wxDocManager)
 436     DECLARE_NO_COPY_CLASS(wxDocManager)
 437 };
 438
 439 inline size_t wxDocManager::GetNoHistoryFiles() const
 440 {
 441     return GetHistoryFilesCount();
 442 }
 443
 444 // ----------------------------------------------------------------------------
 445 // A default child frame
 446 // ----------------------------------------------------------------------------
 447
 448 class WXDLLEXPORT wxDocChildFrame : public wxFrame
 449 {
 450 public:
 451     wxDocChildFrame(wxDocument *doc,
 452                     wxView *view,
 453                     wxFrame *frame,
 454                     wxWindowID id,
 455                     const wxString& title,
 456                     const wxPoint& pos = wxDefaultPosition,
 457                     const wxSize& size = wxDefaultSize,
 458                     long type = wxDEFAULT_FRAME_STYLE,
 459                     const wxString& name = wxT("frame"));
 460     ~wxDocChildFrame();
 461
 462     // Extend event processing to search the view's event table
 463     virtual bool ProcessEvent(wxEvent& event);
 464
 465     void OnActivate(wxActivateEvent& event);
 466     void OnCloseWindow(wxCloseEvent& event);
 467
 468     wxDocument *GetDocument() const { return m_childDocument; }
 469     wxView *GetView() const { return m_childView; }
 470     void SetDocument(wxDocument *doc) { m_childDocument = doc; }
 471     void SetView(wxView *view) { m_childView = view; }
 472     bool Destroy() { m_childView = (wxView *)NULL; return wxFrame::Destroy(); }
 473
 474 protected:
 475     wxDocument*       m_childDocument;
 476     wxView*           m_childView;
 477
 478 private:
 479     DECLARE_CLASS(wxDocChildFrame)
 480     DECLARE_EVENT_TABLE()
 481     DECLARE_NO_COPY_CLASS(wxDocChildFrame)
 482 };
 483
 484 // ----------------------------------------------------------------------------
 485 // A default parent frame
 486 // ----------------------------------------------------------------------------
 487
 488 class WXDLLEXPORT wxDocParentFrame : public wxFrame
 489 {
 490 public:
 491     wxDocParentFrame(wxDocManager *manager,
 492                      wxFrame *frame,
 493                      wxWindowID id,
 494                      const wxString& title,
 495                      const wxPoint& pos = wxDefaultPosition,
 496                      const wxSize& size = wxDefaultSize,
 497                      long type = wxDEFAULT_FRAME_STYLE,
 498                      const wxString& name = wxT("frame"));
 499
 500     // Extend event processing to search the document manager's event table
 501     virtual bool ProcessEvent(wxEvent& event);
 502
 503     wxDocManager *GetDocumentManager() const { return m_docManager; }
 504
 505     void OnExit(wxCommandEvent& event);
 506     void OnMRUFile(wxCommandEvent& event);
 507     void OnCloseWindow(wxCloseEvent& event);
 508
 509 protected:
 510     wxDocManager *m_docManager;
 511
 512 private:
 513     DECLARE_CLASS(wxDocParentFrame)
 514     DECLARE_EVENT_TABLE()
 515     DECLARE_NO_COPY_CLASS(wxDocParentFrame)
 516 };
 517
 518 // ----------------------------------------------------------------------------
 519 // Provide simple default printing facilities
 520 // ----------------------------------------------------------------------------
 521
 522 #if wxUSE_PRINTING_ARCHITECTURE
 523 class WXDLLEXPORT wxDocPrintout : public wxPrintout
 524 {
 525 public:
 526     wxDocPrintout(wxView *view = (wxView *) NULL, const wxString& title = wxT("Printout"));
 527     bool OnPrintPage(int page);
 528     bool HasPage(int page);
 529     bool OnBeginDocument(int startPage, int endPage);
 530     void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
 531
 532     virtual wxView *GetView() { return m_printoutView; }
 533
 534 protected:
 535     wxView*       m_printoutView;
 536
 537 private:
 538     DECLARE_DYNAMIC_CLASS(wxDocPrintout)
 539     DECLARE_NO_COPY_CLASS(wxDocPrintout)
 540 };
 541 #endif // wxUSE_PRINTING_ARCHITECTURE
 542
 543 // ----------------------------------------------------------------------------
 544 // File history management
 545 // ----------------------------------------------------------------------------
 546
 547 class WXDLLEXPORT wxFileHistory : public wxObject
 548 {
 549 public:
 550     wxFileHistory(size_t maxFiles = 9, wxWindowID idBase = wxID_FILE1);
 551     ~wxFileHistory();
 552
 553     // Operations
 554     virtual void AddFileToHistory(const wxString& file);
 555     virtual void RemoveFileFromHistory(size_t i);
 556     virtual int GetMaxFiles() const { return m_fileMaxFiles; }
 557     virtual void UseMenu(wxMenu *menu);
 558
 559     // Remove menu from the list (MDI child may be closing)
 560     virtual void RemoveMenu(wxMenu *menu);
 561
 562 #if wxUSE_CONFIG
 563     virtual void Load(wxConfigBase& config);
 564     virtual void Save(wxConfigBase& config);
 565 #endif // wxUSE_CONFIG
 566
 567     virtual void AddFilesToMenu();
 568     virtual void AddFilesToMenu(wxMenu* menu); // Single menu
 569
 570     // Accessors
 571     virtual wxString GetHistoryFile(size_t i) const;
 572     virtual size_t GetCount() const { return m_fileHistoryN; }
 573
 574     const wxList& GetMenus() const { return m_fileMenus; }
 575
 576     // deprecated, use GetCount() instead
 577     wxDEPRECATED( size_t GetNoHistoryFiles() const );
 578
 579 protected:
 580     // Last n files
 581     wxChar**          m_fileHistory;
 582     // Number of files saved
 583     size_t            m_fileHistoryN;
 584     // Menus to maintain (may need several for an MDI app)
 585     wxList            m_fileMenus;
 586     // Max files to maintain
 587     size_t            m_fileMaxFiles;
 588
 589 private:
 590     // The ID of the first history menu item (Doesn't have to be wxID_FILE1)
 591     wxWindowID m_idBase;
 592
 593     DECLARE_DYNAMIC_CLASS(wxFileHistory)
 594     DECLARE_NO_COPY_CLASS(wxFileHistory)
 595 };
 596
 597 inline size_t wxFileHistory::GetNoHistoryFiles() const
 598 {
 599     return m_fileHistoryN;
 600 }
 601
 602 #if wxUSE_STD_IOSTREAM
 603 // For compatibility with existing file formats:
 604 // converts from/to a stream to/from a temporary file.
 605 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
 606 bool WXDLLEXPORT wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
 607 #else
 608 // For compatibility with existing file formats:
 609 // converts from/to a stream to/from a temporary file.
 610 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
 611 bool WXDLLEXPORT wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
 612 #endif // wxUSE_STD_IOSTREAM
 613
 614 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
 615
 616 #endif // _WX_DOCH__