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(__APPLE__)
  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 wxWindows
 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 #if WXWIN_COMPATIBILITY
 206     // Defeat compiler warning
 207     bool OnClose() { return wxEvtHandler::OnClose(); }
 208 #endif
 209
 210     // Extend event processing to search the document's event table
 211     virtual bool ProcessEvent(wxEvent& event);
 212
 213     // A view's window can call this to notify the view it is (in)active.
 214     // The function then notifies the document manager.
 215     virtual void Activate(bool activate);
 216
 217     wxDocManager *GetDocumentManager() const
 218         { return m_viewDocument->GetDocumentManager(); }
 219
 220 #if wxUSE_PRINTING_ARCHITECTURE
 221     virtual wxPrintout *OnCreatePrintout();
 222 #endif
 223
 224 protected:
 225     wxDocument*       m_viewDocument;
 226     wxString          m_viewTypeName;
 227     wxWindow*         m_viewFrame;
 228
 229 private:
 230     DECLARE_ABSTRACT_CLASS(wxView)
 231     DECLARE_NO_COPY_CLASS(wxView)
 232 };
 233
 234 // Represents user interface (and other) properties of documents and views
 235 class WXDLLEXPORT wxDocTemplate: public wxObject
 236 {
 237
 238 friend class WXDLLEXPORT wxDocManager;
 239
 240 public:
 241     // Associate document and view types. They're for identifying what view is
 242     // associated with what template/document type
 243     wxDocTemplate(wxDocManager *manager,
 244                   const wxString& descr,
 245                   const wxString& filter,
 246                   const wxString& dir,
 247                   const wxString& ext,
 248                   const wxString& docTypeName,
 249                   const wxString& viewTypeName,
 250                   wxClassInfo *docClassInfo = (wxClassInfo *) NULL,
 251                   wxClassInfo *viewClassInfo = (wxClassInfo *)NULL,
 252                   long flags = wxDEFAULT_TEMPLATE_FLAGS);
 253
 254     ~wxDocTemplate();
 255
 256     // By default, these two member functions dynamically creates document and
 257     // view using dynamic instance construction. Override these if you need a
 258     // different method of construction.
 259     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 260     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 261
 262     wxString GetDefaultExtension() const { return m_defaultExt; };
 263     wxString GetDescription() const { return m_description; }
 264     wxString GetDirectory() const { return m_directory; };
 265     wxDocManager *GetDocumentManager() const { return m_documentManager; }
 266     void SetDocumentManager(wxDocManager *manager) { m_documentManager = manager; }
 267     wxString GetFileFilter() const { return m_fileFilter; };
 268     long GetFlags() const { return m_flags; };
 269     virtual wxString GetViewName() const { return m_viewTypeName; }
 270     virtual wxString GetDocumentName() const { return m_docTypeName; }
 271
 272     void SetFileFilter(const wxString& filter) { m_fileFilter = filter; };
 273     void SetDirectory(const wxString& dir) { m_directory = dir; };
 274     void SetDescription(const wxString& descr) { m_description = descr; };
 275     void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; };
 276     void SetFlags(long flags) { m_flags = flags; };
 277
 278     bool IsVisible() const { return ((m_flags & wxTEMPLATE_VISIBLE) == wxTEMPLATE_VISIBLE); }
 279
 280     virtual bool FileMatchesTemplate(const wxString& path);
 281
 282 protected:
 283     long              m_flags;
 284     wxString          m_fileFilter;
 285     wxString          m_directory;
 286     wxString          m_description;
 287     wxString          m_defaultExt;
 288     wxString          m_docTypeName;
 289     wxString          m_viewTypeName;
 290     wxDocManager*     m_documentManager;
 291
 292     // For dynamic creation of appropriate instances.
 293     wxClassInfo*      m_docClassInfo;
 294     wxClassInfo*      m_viewClassInfo;
 295
 296 private:
 297     DECLARE_CLASS(wxDocTemplate)
 298     DECLARE_NO_COPY_CLASS(wxDocTemplate)
 299 };
 300
 301 // One object of this class may be created in an application, to manage all
 302 // the templates and documents.
 303 class WXDLLEXPORT wxDocManager: public wxEvtHandler
 304 {
 305     DECLARE_DYNAMIC_CLASS(wxDocManager)
 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     // Clear remaining documents and templates
 377     bool Clear(bool force = TRUE);
 378
 379     // Views or windows should inform the document manager
 380     // when a view is going in or out of focus
 381     virtual void ActivateView(wxView *view, bool activate = TRUE, bool deleting = FALSE);
 382     virtual wxView *GetCurrentView() const;
 383
 384     wxList& GetDocuments() { return m_docs; }
 385     wxList& GetTemplates() { return m_templates; }
 386
 387     // Make a default document name
 388     virtual bool MakeDefaultName(wxString& buf);
 389
 390     // Make a frame title (override this to do something different)
 391     virtual wxString MakeFrameTitle(wxDocument* doc);
 392
 393     virtual wxFileHistory *OnCreateFileHistory();
 394     virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; }
 395
 396     // File history management
 397     virtual void AddFileToHistory(const wxString& file);
 398     virtual void RemoveFileFromHistory(size_t i);
 399     virtual size_t GetNoHistoryFiles() const;
 400     virtual wxString GetHistoryFile(size_t i) const;
 401     virtual void FileHistoryUseMenu(wxMenu *menu);
 402     virtual void FileHistoryRemoveMenu(wxMenu *menu);
 403 #if wxUSE_CONFIG
 404     virtual void FileHistoryLoad(wxConfigBase& config);
 405     virtual void FileHistorySave(wxConfigBase& config);
 406 #endif // wxUSE_CONFIG
 407
 408     virtual void FileHistoryAddFilesToMenu();
 409     virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
 410
 411     inline wxString GetLastDirectory() const { return m_lastDirectory; }
 412     inline void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
 413
 414     // Get the current document manager
 415     static wxDocManager* GetDocumentManager() { return sm_docManager; }
 416
 417 protected:
 418     long              m_flags;
 419     int               m_defaultDocumentNameCounter;
 420     int               m_maxDocsOpen;
 421     wxList            m_docs;
 422     wxList            m_templates;
 423     wxView*           m_currentView;
 424     wxFileHistory*    m_fileHistory;
 425     wxString          m_lastDirectory;
 426     static wxDocManager* sm_docManager;
 427
 428     DECLARE_EVENT_TABLE()
 429     DECLARE_NO_COPY_CLASS(wxDocManager)
 430 };
 431
 432 // ----------------------------------------------------------------------------
 433 // A default child frame
 434 // ----------------------------------------------------------------------------
 435
 436 class WXDLLEXPORT wxDocChildFrame : public wxFrame
 437 {
 438 public:
 439     wxDocChildFrame(wxDocument *doc,
 440                     wxView *view,
 441                     wxFrame *frame,
 442                     wxWindowID id,
 443                     const wxString& title,
 444                     const wxPoint& pos = wxDefaultPosition,
 445                     const wxSize& size = wxDefaultSize,
 446                     long type = wxDEFAULT_FRAME_STYLE,
 447                     const wxString& name = wxT("frame"));
 448     ~wxDocChildFrame();
 449
 450     // Extend event processing to search the view's event table
 451     virtual bool ProcessEvent(wxEvent& event);
 452
 453     void OnActivate(wxActivateEvent& event);
 454     void OnCloseWindow(wxCloseEvent& event);
 455
 456     wxDocument *GetDocument() const { return m_childDocument; }
 457     wxView *GetView() const { return m_childView; }
 458     void SetDocument(wxDocument *doc) { m_childDocument = doc; }
 459     void SetView(wxView *view) { m_childView = view; }
 460     bool Destroy() { m_childView = (wxView *)NULL; return wxFrame::Destroy(); }
 461
 462 protected:
 463     wxDocument*       m_childDocument;
 464     wxView*           m_childView;
 465
 466 private:
 467     DECLARE_CLASS(wxDocChildFrame)
 468     DECLARE_EVENT_TABLE()
 469     DECLARE_NO_COPY_CLASS(wxDocChildFrame)
 470 };
 471
 472 // ----------------------------------------------------------------------------
 473 // A default parent frame
 474 // ----------------------------------------------------------------------------
 475
 476 class WXDLLEXPORT wxDocParentFrame : public wxFrame
 477 {
 478 public:
 479     wxDocParentFrame(wxDocManager *manager,
 480                      wxFrame *frame,
 481                      wxWindowID id,
 482                      const wxString& title,
 483                      const wxPoint& pos = wxDefaultPosition,
 484                      const wxSize& size = wxDefaultSize,
 485                      long type = wxDEFAULT_FRAME_STYLE,
 486                      const wxString& name = wxT("frame"));
 487
 488     // Extend event processing to search the document manager's event table
 489     virtual bool ProcessEvent(wxEvent& event);
 490
 491     wxDocManager *GetDocumentManager() const { return m_docManager; }
 492
 493     void OnExit(wxCommandEvent& event);
 494     void OnMRUFile(wxCommandEvent& event);
 495     void OnCloseWindow(wxCloseEvent& event);
 496
 497 protected:
 498     wxDocManager *m_docManager;
 499
 500 private:
 501     DECLARE_CLASS(wxDocParentFrame)
 502     DECLARE_EVENT_TABLE()
 503     DECLARE_NO_COPY_CLASS(wxDocParentFrame)
 504 };
 505
 506 // ----------------------------------------------------------------------------
 507 // Provide simple default printing facilities
 508 // ----------------------------------------------------------------------------
 509
 510 #if wxUSE_PRINTING_ARCHITECTURE
 511 class WXDLLEXPORT wxDocPrintout : public wxPrintout
 512 {
 513 public:
 514     wxDocPrintout(wxView *view = (wxView *) NULL, const wxString& title = wxT("Printout"));
 515     bool OnPrintPage(int page);
 516     bool HasPage(int page);
 517     bool OnBeginDocument(int startPage, int endPage);
 518     void GetPageInfo(int *minPage, int *maxPage, int *selPageFrom, int *selPageTo);
 519
 520     virtual wxView *GetView() { return m_printoutView; }
 521
 522 protected:
 523     wxView*       m_printoutView;
 524
 525 private:
 526     DECLARE_DYNAMIC_CLASS(wxDocPrintout)
 527     DECLARE_NO_COPY_CLASS(wxDocPrintout)
 528 };
 529 #endif // wxUSE_PRINTING_ARCHITECTURE
 530
 531 // ----------------------------------------------------------------------------
 532 // File history management
 533 // ----------------------------------------------------------------------------
 534
 535 class WXDLLEXPORT wxFileHistory : public wxObject
 536 {
 537 public:
 538     wxFileHistory(size_t maxFiles = 9, wxWindowID idBase = wxID_FILE1);
 539     ~wxFileHistory();
 540
 541     // Operations
 542     virtual void AddFileToHistory(const wxString& file);
 543     virtual void RemoveFileFromHistory(size_t i);
 544     virtual int GetMaxFiles() const { return m_fileMaxFiles; }
 545     virtual void UseMenu(wxMenu *menu);
 546
 547     // Remove menu from the list (MDI child may be closing)
 548     virtual void RemoveMenu(wxMenu *menu);
 549
 550 #if wxUSE_CONFIG
 551     virtual void Load(wxConfigBase& config);
 552     virtual void Save(wxConfigBase& config);
 553 #endif // wxUSE_CONFIG
 554
 555     virtual void AddFilesToMenu();
 556     virtual void AddFilesToMenu(wxMenu* menu); // Single menu
 557
 558     // Accessors
 559     virtual wxString GetHistoryFile(size_t i) const;
 560
 561     // A synonym for GetNoHistoryFiles
 562     virtual size_t GetCount() const { return m_fileHistoryN; }
 563     size_t GetNoHistoryFiles() const { return m_fileHistoryN; }
 564
 565     wxList& GetMenus() const { return (wxList&) m_fileMenus; }
 566
 567 protected:
 568     // Last n files
 569     wxChar**          m_fileHistory;
 570     // Number of files saved
 571     size_t            m_fileHistoryN;
 572     // Menus to maintain (may need several for an MDI app)
 573     wxList            m_fileMenus;
 574     // Max files to maintain
 575     size_t            m_fileMaxFiles;
 576
 577 private:
 578     // The ID of the first history menu item (Doesn't have to be wxID_FILE1)
 579     wxWindowID m_idBase;
 580
 581     DECLARE_DYNAMIC_CLASS(wxFileHistory)
 582     DECLARE_NO_COPY_CLASS(wxFileHistory)
 583 };
 584
 585 #if wxUSE_STD_IOSTREAM
 586 // For compatibility with existing file formats:
 587 // converts from/to a stream to/from a temporary file.
 588 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
 589 bool WXDLLEXPORT wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
 590 #else
 591 // For compatibility with existing file formats:
 592 // converts from/to a stream to/from a temporary file.
 593 bool WXDLLEXPORT wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
 594 bool WXDLLEXPORT wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
 595 #endif // wxUSE_STD_IOSTREAM
 596
 597 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
 598
 599 #endif // _WX_DOCH__