include/wx/docview.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/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) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DOCH__
  13 #define _WX_DOCH__
  14
  15 #include "wx/defs.h"
  16
  17 #if wxUSE_DOC_VIEW_ARCHITECTURE
  18
  19 #include "wx/list.h"
  20 #include "wx/string.h"
  21 #include "wx/frame.h"
  22
  23 #if wxUSE_PRINTING_ARCHITECTURE
  24     #include "wx/print.h"
  25 #endif
  26
  27 class WXDLLIMPEXP_FWD_CORE wxWindow;
  28 class WXDLLIMPEXP_FWD_CORE wxDocument;
  29 class WXDLLIMPEXP_FWD_CORE wxView;
  30 class WXDLLIMPEXP_FWD_CORE wxDocTemplate;
  31 class WXDLLIMPEXP_FWD_CORE wxDocManager;
  32 class WXDLLIMPEXP_FWD_CORE wxPrintInfo;
  33 class WXDLLIMPEXP_FWD_CORE wxCommandProcessor;
  34 class WXDLLIMPEXP_FWD_CORE wxFileHistory;
  35 class WXDLLIMPEXP_FWD_BASE wxConfigBase;
  36
  37 class wxDocChildFrameAnyBase;
  38
  39 #if wxUSE_STD_IOSTREAM
  40   #include "wx/iosfwrap.h"
  41 #else
  42   #include "wx/stream.h"
  43 #endif
  44
  45 // Flags for wxDocManager (can be combined).
  46 enum
  47 {
  48     wxDOC_NEW    = 1,
  49     wxDOC_SILENT = 2
  50 };
  51
  52 // Document template flags
  53 enum
  54 {
  55     wxTEMPLATE_VISIBLE = 1,
  56     wxTEMPLATE_INVISIBLE = 2,
  57     wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE
  58 };
  59
  60 #define wxMAX_FILE_HISTORY 9
  61
  62 class WXDLLIMPEXP_CORE wxDocument : public wxEvtHandler
  63 {
  64 public:
  65     wxDocument(wxDocument *parent = NULL);
  66     virtual ~wxDocument();
  67
  68     // accessors
  69     void SetFilename(const wxString& filename, bool notifyViews = false);
  70     wxString GetFilename() const { return m_documentFile; }
  71
  72     void SetTitle(const wxString& title) { m_documentTitle = title; }
  73     wxString GetTitle() const { return m_documentTitle; }
  74
  75     void SetDocumentName(const wxString& name) { m_documentTypeName = name; }
  76     wxString GetDocumentName() const { return m_documentTypeName; }
  77
  78     // access the flag indicating whether this document had been already saved,
  79     // SetDocumentSaved() is only used internally, don't call it
  80     bool GetDocumentSaved() const { return m_savedYet; }
  81     void SetDocumentSaved(bool saved = true) { m_savedYet = saved; }
  82
  83     // return true if the document hasn't been modified since the last time it
  84     // was saved (implying that it returns false if it was never saved, even if
  85     // the document is not modified)
  86     bool AlreadySaved() const { return !IsModified() && GetDocumentSaved(); }
  87
  88     virtual bool Close();
  89     virtual bool Save();
  90     virtual bool SaveAs();
  91     virtual bool Revert();
  92
  93 #if wxUSE_STD_IOSTREAM
  94     virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
  95     virtual wxSTD istream& LoadObject(wxSTD istream& stream);
  96 #else
  97     virtual wxOutputStream& SaveObject(wxOutputStream& stream);
  98     virtual wxInputStream& LoadObject(wxInputStream& stream);
  99 #endif
 100
 101     // Called by wxWidgets
 102     virtual bool OnSaveDocument(const wxString& filename);
 103     virtual bool OnOpenDocument(const wxString& filename);
 104     virtual bool OnNewDocument();
 105     virtual bool OnCloseDocument();
 106
 107     // Prompts for saving if about to close a modified document. Returns true
 108     // if ok to close the document (may have saved in the meantime, or set
 109     // modified to false)
 110     virtual bool OnSaveModified();
 111
 112     // if you override, remember to call the default
 113     // implementation (wxDocument::OnChangeFilename)
 114     virtual void OnChangeFilename(bool notifyViews);
 115
 116     // Called by framework if created automatically by the default document
 117     // manager: gives document a chance to initialise and (usually) create a
 118     // view
 119     virtual bool OnCreate(const wxString& path, long flags);
 120
 121     // By default, creates a base wxCommandProcessor.
 122     virtual wxCommandProcessor *OnCreateCommandProcessor();
 123     virtual wxCommandProcessor *GetCommandProcessor() const
 124         { return m_commandProcessor; }
 125     virtual void SetCommandProcessor(wxCommandProcessor *proc)
 126         { m_commandProcessor = proc; }
 127
 128     // Called after a view is added or removed. The default implementation
 129     // deletes the document if this is there are no more views.
 130     virtual void OnChangedViewList();
 131
 132     virtual bool DeleteContents();
 133
 134     virtual bool Draw(wxDC&);
 135     virtual bool IsModified() const { return m_documentModified; }
 136     virtual void Modify(bool mod);
 137
 138     virtual bool AddView(wxView *view);
 139     virtual bool RemoveView(wxView *view);
 140     wxList& GetViews() { return m_documentViews; }
 141     const wxList& GetViews() const { return m_documentViews; }
 142     wxView *GetFirstView() const;
 143
 144     virtual void UpdateAllViews(wxView *sender = NULL, wxObject *hint = NULL);
 145     virtual void NotifyClosing();
 146
 147     // Remove all views (because we're closing the document)
 148     virtual bool DeleteAllViews();
 149
 150     // Other stuff
 151     virtual wxDocManager *GetDocumentManager() const;
 152     virtual wxDocTemplate *GetDocumentTemplate() const
 153         { return m_documentTemplate; }
 154     virtual void SetDocumentTemplate(wxDocTemplate *temp)
 155         { m_documentTemplate = temp; }
 156
 157     // Get the document name to be shown to the user: the title if there is
 158     // any, otherwise the filename if the document was saved and, finally,
 159     // "unnamed" otherwise
 160     virtual wxString GetUserReadableName() const;
 161
 162 #if WXWIN_COMPATIBILITY_2_8
 163     // use GetUserReadableName() instead
 164     wxDEPRECATED_BUT_USED_INTERNALLY(
 165         virtual bool GetPrintableName(wxString& buf) const
 166     );
 167 #endif // WXWIN_COMPATIBILITY_2_8
 168
 169     // Returns a window that can be used as a parent for document-related
 170     // dialogs. Override if necessary.
 171     virtual wxWindow *GetDocumentWindow() const;
 172
 173 protected:
 174     wxList                m_documentViews;
 175     wxString              m_documentFile;
 176     wxString              m_documentTitle;
 177     wxString              m_documentTypeName;
 178     wxDocTemplate*        m_documentTemplate;
 179     bool                  m_documentModified;
 180     wxDocument*           m_documentParent;
 181     wxCommandProcessor*   m_commandProcessor;
 182     bool                  m_savedYet;
 183
 184     // Called by OnSaveDocument and OnOpenDocument to implement standard
 185     // Save/Load behavior. Re-implement in derived class for custom
 186     // behavior.
 187     virtual bool DoSaveDocument(const wxString& file);
 188     virtual bool DoOpenDocument(const wxString& file);
 189
 190     // the default implementation of GetUserReadableName()
 191     wxString DoGetUserReadableName() const;
 192
 193 private:
 194     DECLARE_ABSTRACT_CLASS(wxDocument)
 195     wxDECLARE_NO_COPY_CLASS(wxDocument);
 196 };
 197
 198 class WXDLLIMPEXP_CORE wxView: public wxEvtHandler
 199 {
 200 public:
 201     wxView();
 202     virtual ~wxView();
 203
 204     wxDocument *GetDocument() const { return m_viewDocument; }
 205     virtual void SetDocument(wxDocument *doc);
 206
 207     wxString GetViewName() const { return m_viewTypeName; }
 208     void SetViewName(const wxString& name) { m_viewTypeName = name; }
 209
 210     wxWindow *GetFrame() const { return m_viewFrame ; }
 211     void SetFrame(wxWindow *frame) { m_viewFrame = frame; }
 212
 213     virtual void OnActivateView(bool activate,
 214                                 wxView *activeView,
 215                                 wxView *deactiveView);
 216     virtual void OnDraw(wxDC *dc) = 0;
 217     virtual void OnPrint(wxDC *dc, wxObject *info);
 218     virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
 219     virtual void OnClosingDocument() {}
 220     virtual void OnChangeFilename();
 221
 222     // Called by framework if created automatically by the default document
 223     // manager class: gives view a chance to initialise
 224     virtual bool OnCreate(wxDocument *WXUNUSED(doc), long WXUNUSED(flags))
 225         { return true; }
 226
 227     // Checks if the view is the last one for the document; if so, asks user
 228     // to confirm save data (if modified). If ok, deletes itself and returns
 229     // true.
 230     virtual bool Close(bool deleteWindow = true);
 231
 232     // Override to do cleanup/veto close
 233     virtual bool OnClose(bool deleteWindow);
 234
 235     // A view's window can call this to notify the view it is (in)active.
 236     // The function then notifies the document manager.
 237     virtual void Activate(bool activate);
 238
 239     wxDocManager *GetDocumentManager() const
 240         { return m_viewDocument->GetDocumentManager(); }
 241
 242 #if wxUSE_PRINTING_ARCHITECTURE
 243     virtual wxPrintout *OnCreatePrintout();
 244 #endif
 245
 246     // implementation only
 247     // -------------------
 248
 249     // set the associated frame, it is used to reset its view when we're
 250     // destroyed
 251     void SetDocChildFrame(wxDocChildFrameAnyBase *docChildFrame);
 252
 253 protected:
 254     // hook the document into event handlers chain here
 255     virtual bool TryBefore(wxEvent& event);
 256
 257     wxDocument*       m_viewDocument;
 258     wxString          m_viewTypeName;
 259     wxWindow*         m_viewFrame;
 260
 261     wxDocChildFrameAnyBase *m_docChildFrame;
 262
 263 private:
 264     DECLARE_ABSTRACT_CLASS(wxView)
 265     wxDECLARE_NO_COPY_CLASS(wxView);
 266 };
 267
 268 // Represents user interface (and other) properties of documents and views
 269 class WXDLLIMPEXP_CORE wxDocTemplate: public wxObject
 270 {
 271
 272 friend class WXDLLIMPEXP_FWD_CORE wxDocManager;
 273
 274 public:
 275     // Associate document and view types. They're for identifying what view is
 276     // associated with what template/document type
 277     wxDocTemplate(wxDocManager *manager,
 278                   const wxString& descr,
 279                   const wxString& filter,
 280                   const wxString& dir,
 281                   const wxString& ext,
 282                   const wxString& docTypeName,
 283                   const wxString& viewTypeName,
 284                   wxClassInfo *docClassInfo = NULL,
 285                   wxClassInfo *viewClassInfo = NULL,
 286                   long flags = wxDEFAULT_TEMPLATE_FLAGS);
 287
 288     virtual ~wxDocTemplate();
 289
 290     // By default, these two member functions dynamically creates document and
 291     // view using dynamic instance construction. Override these if you need a
 292     // different method of construction.
 293     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 294     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 295
 296     // Helper method for CreateDocument; also allows you to do your own document
 297     // creation
 298     virtual bool InitDocument(wxDocument* doc,
 299                               const wxString& path,
 300                               long flags = 0);
 301
 302     wxString GetDefaultExtension() const { return m_defaultExt; }
 303     wxString GetDescription() const { return m_description; }
 304     wxString GetDirectory() const { return m_directory; }
 305     wxDocManager *GetDocumentManager() const { return m_documentManager; }
 306     void SetDocumentManager(wxDocManager *manager)
 307         { m_documentManager = manager; }
 308     wxString GetFileFilter() const { return m_fileFilter; }
 309     long GetFlags() const { return m_flags; }
 310     virtual wxString GetViewName() const { return m_viewTypeName; }
 311     virtual wxString GetDocumentName() const { return m_docTypeName; }
 312
 313     void SetFileFilter(const wxString& filter) { m_fileFilter = filter; }
 314     void SetDirectory(const wxString& dir) { m_directory = dir; }
 315     void SetDescription(const wxString& descr) { m_description = descr; }
 316     void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; }
 317     void SetFlags(long flags) { m_flags = flags; }
 318
 319     bool IsVisible() const { return (m_flags & wxTEMPLATE_VISIBLE) != 0; }
 320
 321     wxClassInfo* GetDocClassInfo() const { return m_docClassInfo; }
 322     wxClassInfo* GetViewClassInfo() const { return m_viewClassInfo; }
 323
 324     virtual bool FileMatchesTemplate(const wxString& path);
 325
 326 protected:
 327     long              m_flags;
 328     wxString          m_fileFilter;
 329     wxString          m_directory;
 330     wxString          m_description;
 331     wxString          m_defaultExt;
 332     wxString          m_docTypeName;
 333     wxString          m_viewTypeName;
 334     wxDocManager*     m_documentManager;
 335
 336     // For dynamic creation of appropriate instances.
 337     wxClassInfo*      m_docClassInfo;
 338     wxClassInfo*      m_viewClassInfo;
 339
 340     // Called by CreateDocument and CreateView to create the actual
 341     // document/view object.
 342     //
 343     // By default uses the ClassInfo provided to the constructor. Override
 344     // these functions to provide a different method of creation.
 345     virtual wxDocument *DoCreateDocument();
 346     virtual wxView *DoCreateView();
 347
 348 private:
 349     DECLARE_CLASS(wxDocTemplate)
 350     wxDECLARE_NO_COPY_CLASS(wxDocTemplate);
 351 };
 352
 353 // One object of this class may be created in an application, to manage all
 354 // the templates and documents.
 355 class WXDLLIMPEXP_CORE wxDocManager: public wxEvtHandler
 356 {
 357 public:
 358     // NB: flags are unused, don't pass wxDOC_XXX to this ctor
 359     wxDocManager(long flags = 0, bool initialize = true);
 360     virtual ~wxDocManager();
 361
 362     virtual bool Initialize();
 363
 364     // Handlers for common user commands
 365     void OnFileClose(wxCommandEvent& event);
 366     void OnFileCloseAll(wxCommandEvent& event);
 367     void OnFileNew(wxCommandEvent& event);
 368     void OnFileOpen(wxCommandEvent& event);
 369     void OnFileRevert(wxCommandEvent& event);
 370     void OnFileSave(wxCommandEvent& event);
 371     void OnFileSaveAs(wxCommandEvent& event);
 372     void OnPrint(wxCommandEvent& event);
 373     void OnPreview(wxCommandEvent& event);
 374     void OnUndo(wxCommandEvent& event);
 375     void OnRedo(wxCommandEvent& event);
 376
 377     // Handlers for UI update commands
 378     void OnUpdateFileOpen(wxUpdateUIEvent& event);
 379     void OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event);
 380     void OnUpdateFileRevert(wxUpdateUIEvent& event);
 381     void OnUpdateFileNew(wxUpdateUIEvent& event);
 382     void OnUpdateFileSave(wxUpdateUIEvent& event);
 383     void OnUpdateUndo(wxUpdateUIEvent& event);
 384     void OnUpdateRedo(wxUpdateUIEvent& event);
 385
 386     // called when file format detection didn't work, can be overridden to do
 387     // something in this case
 388     virtual void OnOpenFileFailure() { }
 389
 390     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 391
 392     // wrapper around CreateDocument() with a more clear name
 393     wxDocument *CreateNewDocument()
 394         { return CreateDocument(wxString(), wxDOC_NEW); }
 395
 396     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 397     virtual void DeleteTemplate(wxDocTemplate *temp, long flags = 0);
 398     virtual bool FlushDoc(wxDocument *doc);
 399     virtual wxDocTemplate *MatchTemplate(const wxString& path);
 400     virtual wxDocTemplate *SelectDocumentPath(wxDocTemplate **templates,
 401             int noTemplates, wxString& path, long flags, bool save = false);
 402     virtual wxDocTemplate *SelectDocumentType(wxDocTemplate **templates,
 403             int noTemplates, bool sort = false);
 404     virtual wxDocTemplate *SelectViewType(wxDocTemplate **templates,
 405             int noTemplates, bool sort = false);
 406     virtual wxDocTemplate *FindTemplateForPath(const wxString& path);
 407
 408     void AssociateTemplate(wxDocTemplate *temp);
 409     void DisassociateTemplate(wxDocTemplate *temp);
 410
 411     wxDocument *GetCurrentDocument() const;
 412
 413     void SetMaxDocsOpen(int n) { m_maxDocsOpen = n; }
 414     int GetMaxDocsOpen() const { return m_maxDocsOpen; }
 415
 416     // Add and remove a document from the manager's list
 417     void AddDocument(wxDocument *doc);
 418     void RemoveDocument(wxDocument *doc);
 419
 420     // closes all currently open documents
 421     bool CloseDocuments(bool force = true);
 422
 423     // closes the specified document
 424     bool CloseDocument(wxDocument* doc, bool force = false);
 425
 426     // Clear remaining documents and templates
 427     bool Clear(bool force = true);
 428
 429     // Views or windows should inform the document manager
 430     // when a view is going in or out of focus
 431     virtual void ActivateView(wxView *view, bool activate = true);
 432     virtual wxView *GetCurrentView() const { return m_currentView; }
 433
 434     wxList& GetDocuments() { return m_docs; }
 435     wxList& GetTemplates() { return m_templates; }
 436
 437     // Return the default name for a new document (by default returns strings
 438     // in the form "unnamed <counter>" but can be overridden)
 439     virtual wxString MakeNewDocumentName();
 440
 441     // Make a frame title (override this to do something different)
 442     virtual wxString MakeFrameTitle(wxDocument* doc);
 443
 444     virtual wxFileHistory *OnCreateFileHistory();
 445     virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; }
 446
 447     // File history management
 448     virtual void AddFileToHistory(const wxString& file);
 449     virtual void RemoveFileFromHistory(size_t i);
 450     virtual size_t GetHistoryFilesCount() const;
 451     virtual wxString GetHistoryFile(size_t i) const;
 452     virtual void FileHistoryUseMenu(wxMenu *menu);
 453     virtual void FileHistoryRemoveMenu(wxMenu *menu);
 454 #if wxUSE_CONFIG
 455     virtual void FileHistoryLoad(const wxConfigBase& config);
 456     virtual void FileHistorySave(wxConfigBase& config);
 457 #endif // wxUSE_CONFIG
 458
 459     virtual void FileHistoryAddFilesToMenu();
 460     virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
 461
 462     wxString GetLastDirectory() const;
 463     void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
 464
 465     // Get the current document manager
 466     static wxDocManager* GetDocumentManager() { return sm_docManager; }
 467
 468 #if WXWIN_COMPATIBILITY_2_8
 469     // deprecated, override GetDefaultName() instead
 470     wxDEPRECATED_BUT_USED_INTERNALLY(
 471         virtual bool MakeDefaultName(wxString& buf)
 472     );
 473 #endif
 474
 475 #if WXWIN_COMPATIBILITY_2_6
 476     // deprecated, use GetHistoryFilesCount() instead
 477     wxDEPRECATED( size_t GetNoHistoryFiles() const );
 478 #endif // WXWIN_COMPATIBILITY_2_6
 479
 480 protected:
 481     // hook the currently active view into event handlers chain here
 482     virtual bool TryBefore(wxEvent& event);
 483
 484     // return the command processor for the current document, if any
 485     wxCommandProcessor *GetCurrentCommandProcessor() const;
 486
 487     // this method tries to find an active view harder than GetCurrentView():
 488     // if the latter is NULL, it also checks if we don't have just a single
 489     // view and returns it then
 490     wxView *GetActiveView() const;
 491
 492
 493     int               m_defaultDocumentNameCounter;
 494     int               m_maxDocsOpen;
 495     wxList            m_docs;
 496     wxList            m_templates;
 497     wxView*           m_currentView;
 498     wxFileHistory*    m_fileHistory;
 499     wxString          m_lastDirectory;
 500     static wxDocManager* sm_docManager;
 501
 502     DECLARE_EVENT_TABLE()
 503     DECLARE_DYNAMIC_CLASS(wxDocManager)
 504     wxDECLARE_NO_COPY_CLASS(wxDocManager);
 505 };
 506
 507 #if WXWIN_COMPATIBILITY_2_6
 508 inline size_t wxDocManager::GetNoHistoryFiles() const
 509 {
 510     return GetHistoryFilesCount();
 511 }
 512 #endif // WXWIN_COMPATIBILITY_2_6
 513
 514 // ----------------------------------------------------------------------------
 515 // Base class for child frames -- this is what wxView renders itself into
 516 //
 517 // Notice that this is a mix-in class so it doesn't derive from wxWindow, only
 518 // wxDocChildFrameAny does
 519 // ----------------------------------------------------------------------------
 520
 521 class WXDLLIMPEXP_CORE wxDocChildFrameAnyBase
 522 {
 523 public:
 524     // default ctor, use Create() after it
 525     wxDocChildFrameAnyBase()
 526     {
 527         m_childDocument = NULL;
 528         m_childView = NULL;
 529         m_win = NULL;
 530     }
 531
 532     // full ctor equivalent to using the default one and Create(0
 533     wxDocChildFrameAnyBase(wxDocument *doc, wxView *view, wxWindow *win)
 534     {
 535         Create(doc, view, win);
 536     }
 537
 538     // method which must be called for an object created using the default ctor
 539     //
 540     // note that it returns bool just for consistency with Create() methods in
 541     // other classes, we never return false from here
 542     bool Create(wxDocument *doc, wxView *view, wxWindow *win)
 543     {
 544         m_childDocument = doc;
 545         m_childView = view;
 546         m_win = win;
 547
 548         if ( view )
 549             view->SetDocChildFrame(this);
 550
 551         return true;
 552     }
 553
 554     // dtor doesn't need to be virtual, an object should never be destroyed via
 555     // a pointer to this class
 556     ~wxDocChildFrameAnyBase()
 557     {
 558         // prevent the view from deleting us if we're being deleted directly
 559         // (and not via Close() + Destroy())
 560         if ( m_childView )
 561             m_childView->SetDocChildFrame(NULL);
 562     }
 563
 564     wxDocument *GetDocument() const { return m_childDocument; }
 565     wxView *GetView() const { return m_childView; }
 566     void SetDocument(wxDocument *doc) { m_childDocument = doc; }
 567     void SetView(wxView *view) { m_childView = view; }
 568
 569     wxWindow *GetWindow() const { return m_win; }
 570
 571 protected:
 572     // we're not a wxEvtHandler but we provide this wxEvtHandler-like function
 573     // which is called from TryBefore() of the derived classes to give our view
 574     // a chance to process the message before the frame event handlers are used
 575     bool TryProcessEvent(wxEvent& event)
 576     {
 577         return m_childView && m_childView->ProcessEventHere(event);
 578     }
 579
 580     // called from EVT_CLOSE handler in the frame: check if we can close and do
 581     // cleanup if so; veto the event otherwise
 582     bool CloseView(wxCloseEvent& event);
 583
 584
 585     wxDocument*       m_childDocument;
 586     wxView*           m_childView;
 587
 588     // the associated window: having it here is not terribly elegant but it
 589     // allows us to avoid having any virtual functions in this class
 590     wxWindow* m_win;
 591
 592
 593     wxDECLARE_NO_COPY_CLASS(wxDocChildFrameAnyBase);
 594 };
 595
 596 // ----------------------------------------------------------------------------
 597 // Template implementing child frame concept using the given wxFrame-like class
 598 //
 599 // This is used to define wxDocChildFrame and wxDocMDIChildFrame: ChildFrame is
 600 // a wxFrame or wxMDIChildFrame (although in theory it could be any wxWindow-
 601 // derived class as long as it provided a ctor with the same signature as
 602 // wxFrame and OnActivate() method) and ParentFrame is either wxFrame or
 603 // wxMDIParentFrame.
 604 // ----------------------------------------------------------------------------
 605
 606 template <class ChildFrame, class ParentFrame>
 607 class WXDLLIMPEXP_CORE wxDocChildFrameAny : public ChildFrame,
 608                                             public wxDocChildFrameAnyBase
 609 {
 610 public:
 611     typedef ChildFrame BaseClass;
 612
 613     // default ctor, use Create after it
 614     wxDocChildFrameAny() { }
 615
 616     // ctor for a frame showing the given view of the specified document
 617     wxDocChildFrameAny(wxDocument *doc,
 618                        wxView *view,
 619                        ParentFrame *parent,
 620                        wxWindowID id,
 621                        const wxString& title,
 622                        const wxPoint& pos = wxDefaultPosition,
 623                        const wxSize& size = wxDefaultSize,
 624                        long style = wxDEFAULT_FRAME_STYLE,
 625                        const wxString& name = wxFrameNameStr)
 626     {
 627         Create(doc, view, parent, id, title, pos, size, style, name);
 628     }
 629
 630     bool Create(wxDocument *doc,
 631                 wxView *view,
 632                 ParentFrame *parent,
 633                 wxWindowID id,
 634                 const wxString& title,
 635                 const wxPoint& pos = wxDefaultPosition,
 636                 const wxSize& size = wxDefaultSize,
 637                 long style = wxDEFAULT_FRAME_STYLE,
 638                 const wxString& name = wxFrameNameStr)
 639     {
 640         if ( !wxDocChildFrameAnyBase::Create(doc, view, this) )
 641             return false;
 642
 643         if ( !BaseClass::Create(parent, id, title, pos, size, style, name) )
 644             return false;
 645
 646         this->Connect(wxEVT_ACTIVATE,
 647                       wxActivateEventHandler(wxDocChildFrameAny::OnActivate));
 648         this->Connect(wxEVT_CLOSE_WINDOW,
 649                       wxCloseEventHandler(wxDocChildFrameAny::OnCloseWindow));
 650
 651         return true;
 652     }
 653
 654     virtual bool Destroy()
 655     {
 656         // FIXME: why exactly do we do this? to avoid activation events during
 657         //        destructions maybe?
 658         m_childView = NULL;
 659         return BaseClass::Destroy();
 660     }
 661
 662 protected:
 663     // hook the child view into event handlers chain here
 664     virtual bool TryBefore(wxEvent& event)
 665     {
 666         return TryProcessEvent(event) || BaseClass::TryBefore(event);
 667     }
 668
 669 private:
 670     void OnActivate(wxActivateEvent& event)
 671     {
 672         BaseClass::OnActivate(event);
 673
 674         if ( m_childView )
 675             m_childView->Activate(event.GetActive());
 676     }
 677
 678     void OnCloseWindow(wxCloseEvent& event)
 679     {
 680         if ( CloseView(event) )
 681             Destroy();
 682         //else: vetoed
 683     }
 684
 685     wxDECLARE_NO_COPY_TEMPLATE_CLASS_2(wxDocChildFrameAny,
 686                                         ChildFrame, ParentFrame);
 687 };
 688
 689 // ----------------------------------------------------------------------------
 690 // A default child frame: we need to define it as a class just for wxRTTI,
 691 // otherwise we could simply typedef it
 692 // ----------------------------------------------------------------------------
 693
 694 #ifdef __VISUALC6__
 695     // "non dll-interface class 'wxDocChildFrameAny<>' used as base interface
 696     // for dll-interface class 'wxDocChildFrame'" -- this is bogus as the
 697     // template will be DLL-exported but only once it is used as base class
 698     // here!
 699     #pragma warning (push)
 700     #pragma warning (disable:4275)
 701 #endif
 702
 703 typedef wxDocChildFrameAny<wxFrame, wxFrame> wxDocChildFrameBase;
 704
 705 class WXDLLIMPEXP_CORE wxDocChildFrame : public wxDocChildFrameBase
 706 {
 707 public:
 708     wxDocChildFrame()
 709     {
 710     }
 711
 712     wxDocChildFrame(wxDocument *doc,
 713                     wxView *view,
 714                     wxFrame *parent,
 715                     wxWindowID id,
 716                     const wxString& title,
 717                     const wxPoint& pos = wxDefaultPosition,
 718                     const wxSize& size = wxDefaultSize,
 719                     long style = wxDEFAULT_FRAME_STYLE,
 720                     const wxString& name = wxFrameNameStr)
 721         : wxDocChildFrameBase(doc, view,
 722                               parent, id, title, pos, size, style, name)
 723     {
 724     }
 725
 726     bool Create(wxDocument *doc,
 727                 wxView *view,
 728                 wxFrame *parent,
 729                 wxWindowID id,
 730                 const wxString& title,
 731                 const wxPoint& pos = wxDefaultPosition,
 732                 const wxSize& size = wxDefaultSize,
 733                 long style = wxDEFAULT_FRAME_STYLE,
 734                 const wxString& name = wxFrameNameStr)
 735     {
 736         return wxDocChildFrameBase::Create
 737                (
 738                     doc, view,
 739                     parent, id, title, pos, size, style, name
 740                );
 741     }
 742
 743 private:
 744     DECLARE_CLASS(wxDocChildFrame)
 745     wxDECLARE_NO_COPY_CLASS(wxDocChildFrame);
 746 };
 747
 748 #ifdef __VISUALC6__
 749     #pragma warning (pop)
 750 #endif
 751
 752 // ----------------------------------------------------------------------------
 753 // A default parent frame
 754 // ----------------------------------------------------------------------------
 755
 756 class WXDLLIMPEXP_CORE wxDocParentFrame : public wxFrame
 757 {
 758 public:
 759     wxDocParentFrame();
 760     wxDocParentFrame(wxDocManager *manager,
 761                      wxFrame *frame,
 762                      wxWindowID id,
 763                      const wxString& title,
 764                      const wxPoint& pos = wxDefaultPosition,
 765                      const wxSize& size = wxDefaultSize,
 766                      long style = wxDEFAULT_FRAME_STYLE,
 767                      const wxString& name = wxFrameNameStr);
 768
 769     bool Create(wxDocManager *manager,
 770                 wxFrame *frame,
 771                 wxWindowID id,
 772                 const wxString& title,
 773                 const wxPoint& pos = wxDefaultPosition,
 774                 const wxSize& size = wxDefaultSize,
 775                 long style = wxDEFAULT_FRAME_STYLE,
 776                 const wxString& name = wxFrameNameStr);
 777
 778     wxDocManager *GetDocumentManager() const { return m_docManager; }
 779
 780     void OnExit(wxCommandEvent& event);
 781     void OnMRUFile(wxCommandEvent& event);
 782     void OnCloseWindow(wxCloseEvent& event);
 783
 784 protected:
 785     // hook the document manager into event handling chain here
 786     virtual bool TryBefore(wxEvent& event);
 787
 788     wxDocManager *m_docManager;
 789
 790 private:
 791     typedef wxFrame base_type;
 792     DECLARE_CLASS(wxDocParentFrame)
 793     DECLARE_EVENT_TABLE()
 794     wxDECLARE_NO_COPY_CLASS(wxDocParentFrame);
 795 };
 796
 797 // ----------------------------------------------------------------------------
 798 // Provide simple default printing facilities
 799 // ----------------------------------------------------------------------------
 800
 801 #if wxUSE_PRINTING_ARCHITECTURE
 802 class WXDLLIMPEXP_CORE wxDocPrintout : public wxPrintout
 803 {
 804 public:
 805     wxDocPrintout(wxView *view = NULL, const wxString& title = wxT("Printout"));
 806
 807     // implement wxPrintout methods
 808     virtual bool OnPrintPage(int page);
 809     virtual bool HasPage(int page);
 810     virtual bool OnBeginDocument(int startPage, int endPage);
 811     virtual void GetPageInfo(int *minPage, int *maxPage,
 812                              int *selPageFrom, int *selPageTo);
 813
 814     virtual wxView *GetView() { return m_printoutView; }
 815
 816 protected:
 817     wxView*       m_printoutView;
 818
 819 private:
 820     DECLARE_DYNAMIC_CLASS(wxDocPrintout)
 821     wxDECLARE_NO_COPY_CLASS(wxDocPrintout);
 822 };
 823 #endif // wxUSE_PRINTING_ARCHITECTURE
 824
 825 // ----------------------------------------------------------------------------
 826 // File history management
 827 // ----------------------------------------------------------------------------
 828
 829 class WXDLLIMPEXP_CORE wxFileHistory : public wxObject
 830 {
 831 public:
 832     wxFileHistory(size_t maxFiles = 9, wxWindowID idBase = wxID_FILE1);
 833
 834     // Operations
 835     virtual void AddFileToHistory(const wxString& file);
 836     virtual void RemoveFileFromHistory(size_t i);
 837     virtual int GetMaxFiles() const { return (int)m_fileMaxFiles; }
 838     virtual void UseMenu(wxMenu *menu);
 839
 840     // Remove menu from the list (MDI child may be closing)
 841     virtual void RemoveMenu(wxMenu *menu);
 842
 843 #if wxUSE_CONFIG
 844     virtual void Load(const wxConfigBase& config);
 845     virtual void Save(wxConfigBase& config);
 846 #endif // wxUSE_CONFIG
 847
 848     virtual void AddFilesToMenu();
 849     virtual void AddFilesToMenu(wxMenu* menu); // Single menu
 850
 851     // Accessors
 852     virtual wxString GetHistoryFile(size_t i) const { return m_fileHistory[i]; }
 853     virtual size_t GetCount() const { return m_fileHistory.GetCount(); }
 854
 855     const wxList& GetMenus() const { return m_fileMenus; }
 856
 857     // Set/get base id
 858     void SetBaseId(wxWindowID baseId) { m_idBase = baseId; }
 859     wxWindowID GetBaseId() const { return m_idBase; }
 860
 861 #if WXWIN_COMPATIBILITY_2_6
 862     // deprecated, use GetCount() instead
 863     wxDEPRECATED( size_t GetNoHistoryFiles() const );
 864 #endif // WXWIN_COMPATIBILITY_2_6
 865
 866 protected:
 867     // Last n files
 868     wxArrayString     m_fileHistory;
 869
 870     // Menus to maintain (may need several for an MDI app)
 871     wxList            m_fileMenus;
 872
 873     // Max files to maintain
 874     size_t            m_fileMaxFiles;
 875
 876 private:
 877     // The ID of the first history menu item (Doesn't have to be wxID_FILE1)
 878     wxWindowID m_idBase;
 879
 880     DECLARE_DYNAMIC_CLASS(wxFileHistory)
 881     wxDECLARE_NO_COPY_CLASS(wxFileHistory);
 882 };
 883
 884 #if WXWIN_COMPATIBILITY_2_6
 885 inline size_t wxFileHistory::GetNoHistoryFiles() const
 886 {
 887     return m_fileHistory.GetCount();
 888 }
 889 #endif // WXWIN_COMPATIBILITY_2_6
 890
 891 // For compatibility with existing file formats:
 892 // converts from/to a stream to/from a temporary file.
 893 #if wxUSE_STD_IOSTREAM
 894 bool WXDLLIMPEXP_CORE
 895 wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
 896 bool WXDLLIMPEXP_CORE
 897 wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
 898 #else
 899 bool WXDLLIMPEXP_CORE
 900 wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
 901 bool WXDLLIMPEXP_CORE
 902 wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
 903 #endif // wxUSE_STD_IOSTREAM
 904
 905
 906 // these flags are not used anywhere by wxWidgets and kept only for an unlikely
 907 // case of existing user code using them for its own purposes
 908 #ifdef WXWIN_COMPATIBILITY_2_8
 909 enum
 910 {
 911     wxDOC_SDI = 1,
 912     wxDOC_MDI,
 913     wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI
 914 };
 915 #endif // WXWIN_COMPATIBILITY_2_8
 916
 917 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
 918
 919 #endif // _WX_DOCH__