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/dlist.h"
  21 #include "wx/string.h"
  22 #include "wx/frame.h"
  23 #include "wx/filehistory.h"
  24 #include "wx/vector.h"
  25
  26 #if wxUSE_PRINTING_ARCHITECTURE
  27     #include "wx/print.h"
  28 #endif
  29
  30 class WXDLLIMPEXP_FWD_CORE wxWindow;
  31 class WXDLLIMPEXP_FWD_CORE wxDocument;
  32 class WXDLLIMPEXP_FWD_CORE wxView;
  33 class WXDLLIMPEXP_FWD_CORE wxDocTemplate;
  34 class WXDLLIMPEXP_FWD_CORE wxDocManager;
  35 class WXDLLIMPEXP_FWD_CORE wxPrintInfo;
  36 class WXDLLIMPEXP_FWD_CORE wxCommandProcessor;
  37 class WXDLLIMPEXP_FWD_BASE wxConfigBase;
  38
  39 class wxDocChildFrameAnyBase;
  40
  41 #if wxUSE_STD_IOSTREAM
  42   #include "wx/iosfwrap.h"
  43 #else
  44   #include "wx/stream.h"
  45 #endif
  46
  47 // Flags for wxDocManager (can be combined).
  48 enum
  49 {
  50     wxDOC_NEW    = 1,
  51     wxDOC_SILENT = 2
  52 };
  53
  54 // Document template flags
  55 enum
  56 {
  57     wxTEMPLATE_VISIBLE = 1,
  58     wxTEMPLATE_INVISIBLE = 2,
  59     wxDEFAULT_TEMPLATE_FLAGS = wxTEMPLATE_VISIBLE
  60 };
  61
  62 #define wxMAX_FILE_HISTORY 9
  63
  64 typedef wxVector<wxDocument*> wxDocVector;
  65 typedef wxVector<wxView*> wxViewVector;
  66 typedef wxVector<wxDocTemplate*> wxDocTemplateVector;
  67
  68 class WXDLLIMPEXP_CORE wxDocument : public wxEvtHandler
  69 {
  70 public:
  71     wxDocument(wxDocument *parent = NULL);
  72     virtual ~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     // access the flag indicating whether this document had been already saved,
  85     // SetDocumentSaved() is only used internally, don't call it
  86     bool GetDocumentSaved() const { return m_savedYet; }
  87     void SetDocumentSaved(bool saved = true) { m_savedYet = saved; }
  88
  89     // activate the first view of the document if any
  90     void Activate();
  91
  92     // return true if the document hasn't been modified since the last time it
  93     // was saved (implying that it returns false if it was never saved, even if
  94     // the document is not modified)
  95     bool AlreadySaved() const { return !IsModified() && GetDocumentSaved(); }
  96
  97     virtual bool Close();
  98     virtual bool Save();
  99     virtual bool SaveAs();
 100     virtual bool Revert();
 101
 102 #if wxUSE_STD_IOSTREAM
 103     virtual wxSTD ostream& SaveObject(wxSTD ostream& stream);
 104     virtual wxSTD istream& LoadObject(wxSTD istream& stream);
 105 #else
 106     virtual wxOutputStream& SaveObject(wxOutputStream& stream);
 107     virtual wxInputStream& LoadObject(wxInputStream& stream);
 108 #endif
 109
 110     // Called by wxWidgets
 111     virtual bool OnSaveDocument(const wxString& filename);
 112     virtual bool OnOpenDocument(const wxString& filename);
 113     virtual bool OnNewDocument();
 114     virtual bool OnCloseDocument();
 115
 116     // Prompts for saving if about to close a modified document. Returns true
 117     // if ok to close the document (may have saved in the meantime, or set
 118     // modified to false)
 119     virtual bool OnSaveModified();
 120
 121     // if you override, remember to call the default
 122     // implementation (wxDocument::OnChangeFilename)
 123     virtual void OnChangeFilename(bool notifyViews);
 124
 125     // Called by framework if created automatically by the default document
 126     // manager: gives document a chance to initialise and (usually) create a
 127     // view
 128     virtual bool OnCreate(const wxString& path, long flags);
 129
 130     // By default, creates a base wxCommandProcessor.
 131     virtual wxCommandProcessor *OnCreateCommandProcessor();
 132     virtual wxCommandProcessor *GetCommandProcessor() const
 133         { return m_commandProcessor; }
 134     virtual void SetCommandProcessor(wxCommandProcessor *proc)
 135         { m_commandProcessor = proc; }
 136
 137     // Called after a view is added or removed. The default implementation
 138     // deletes the document if this is there are no more views.
 139     virtual void OnChangedViewList();
 140
 141     // Called from OnCloseDocument(), does nothing by default but may be
 142     // overridden. Return value is ignored.
 143     virtual bool DeleteContents();
 144
 145     virtual bool Draw(wxDC&);
 146     virtual bool IsModified() const { return m_documentModified; }
 147     virtual void Modify(bool mod);
 148
 149     virtual bool AddView(wxView *view);
 150     virtual bool RemoveView(wxView *view);
 151
 152 #ifndef __VISUALC6__
 153     wxViewVector GetViewsVector() const;
 154 #endif // !__VISUALC6__
 155
 156     wxList& GetViews() { return m_documentViews; }
 157     const wxList& GetViews() const { return m_documentViews; }
 158
 159     wxView *GetFirstView() const;
 160
 161     virtual void UpdateAllViews(wxView *sender = NULL, wxObject *hint = NULL);
 162     virtual void NotifyClosing();
 163
 164     // Remove all views (because we're closing the document)
 165     virtual bool DeleteAllViews();
 166
 167     // Other stuff
 168     virtual wxDocManager *GetDocumentManager() const;
 169     virtual wxDocTemplate *GetDocumentTemplate() const
 170         { return m_documentTemplate; }
 171     virtual void SetDocumentTemplate(wxDocTemplate *temp)
 172         { m_documentTemplate = temp; }
 173
 174     // Get the document name to be shown to the user: the title if there is
 175     // any, otherwise the filename if the document was saved and, finally,
 176     // "unnamed" otherwise
 177     virtual wxString GetUserReadableName() const;
 178
 179 #if WXWIN_COMPATIBILITY_2_8
 180     // use GetUserReadableName() instead
 181     wxDEPRECATED_BUT_USED_INTERNALLY(
 182         virtual bool GetPrintableName(wxString& buf) const
 183     );
 184 #endif // WXWIN_COMPATIBILITY_2_8
 185
 186     // Returns a window that can be used as a parent for document-related
 187     // dialogs. Override if necessary.
 188     virtual wxWindow *GetDocumentWindow() const;
 189
 190     // Returns true if this document is a child document corresponding to a
 191     // part of the parent document and not a disk file as usual.
 192     bool IsChildDocument() const { return m_documentParent != NULL; }
 193
 194 protected:
 195     wxList                m_documentViews;
 196     wxString              m_documentFile;
 197     wxString              m_documentTitle;
 198     wxString              m_documentTypeName;
 199     wxDocTemplate*        m_documentTemplate;
 200     bool                  m_documentModified;
 201
 202     // if the document parent is non-NULL, it's a pseudo-document corresponding
 203     // to a part of the parent document which can't be saved or loaded
 204     // independently of its parent and is always closed when its parent is
 205     wxDocument*           m_documentParent;
 206
 207     wxCommandProcessor*   m_commandProcessor;
 208     bool                  m_savedYet;
 209
 210     // Called by OnSaveDocument and OnOpenDocument to implement standard
 211     // Save/Load behaviour. Re-implement in derived class for custom
 212     // behaviour.
 213     virtual bool DoSaveDocument(const wxString& file);
 214     virtual bool DoOpenDocument(const wxString& file);
 215
 216     // the default implementation of GetUserReadableName()
 217     wxString DoGetUserReadableName() const;
 218
 219 private:
 220     // list of all documents whose m_documentParent is this one
 221     typedef wxDList<wxDocument> DocsList;
 222     DocsList m_childDocuments;
 223
 224     DECLARE_ABSTRACT_CLASS(wxDocument)
 225     wxDECLARE_NO_COPY_CLASS(wxDocument);
 226 };
 227
 228 class WXDLLIMPEXP_CORE wxView: public wxEvtHandler
 229 {
 230 public:
 231     wxView();
 232     virtual ~wxView();
 233
 234     wxDocument *GetDocument() const { return m_viewDocument; }
 235     virtual void SetDocument(wxDocument *doc);
 236
 237     wxString GetViewName() const { return m_viewTypeName; }
 238     void SetViewName(const wxString& name) { m_viewTypeName = name; }
 239
 240     wxWindow *GetFrame() const { return m_viewFrame ; }
 241     void SetFrame(wxWindow *frame) { m_viewFrame = frame; }
 242
 243     virtual void OnActivateView(bool activate,
 244                                 wxView *activeView,
 245                                 wxView *deactiveView);
 246     virtual void OnDraw(wxDC *dc) = 0;
 247     virtual void OnPrint(wxDC *dc, wxObject *info);
 248     virtual void OnUpdate(wxView *sender, wxObject *hint = NULL);
 249     virtual void OnClosingDocument() {}
 250     virtual void OnChangeFilename();
 251
 252     // Called by framework if created automatically by the default document
 253     // manager class: gives view a chance to initialise
 254     virtual bool OnCreate(wxDocument *WXUNUSED(doc), long WXUNUSED(flags))
 255         { return true; }
 256
 257     // Checks if the view is the last one for the document; if so, asks user
 258     // to confirm save data (if modified). If ok, deletes itself and returns
 259     // true.
 260     virtual bool Close(bool deleteWindow = true);
 261
 262     // Override to do cleanup/veto close
 263     virtual bool OnClose(bool deleteWindow);
 264
 265     // A view's window can call this to notify the view it is (in)active.
 266     // The function then notifies the document manager.
 267     virtual void Activate(bool activate);
 268
 269     wxDocManager *GetDocumentManager() const
 270         { return m_viewDocument->GetDocumentManager(); }
 271
 272 #if wxUSE_PRINTING_ARCHITECTURE
 273     virtual wxPrintout *OnCreatePrintout();
 274 #endif
 275
 276     // implementation only
 277     // -------------------
 278
 279     // set the associated frame, it is used to reset its view when we're
 280     // destroyed
 281     void SetDocChildFrame(wxDocChildFrameAnyBase *docChildFrame);
 282
 283 protected:
 284     // hook the document into event handlers chain here
 285     virtual bool TryBefore(wxEvent& event);
 286
 287     wxDocument*       m_viewDocument;
 288     wxString          m_viewTypeName;
 289     wxWindow*         m_viewFrame;
 290
 291     wxDocChildFrameAnyBase *m_docChildFrame;
 292
 293 private:
 294     DECLARE_ABSTRACT_CLASS(wxView)
 295     wxDECLARE_NO_COPY_CLASS(wxView);
 296 };
 297
 298 // Represents user interface (and other) properties of documents and views
 299 class WXDLLIMPEXP_CORE wxDocTemplate: public wxObject
 300 {
 301
 302 friend class WXDLLIMPEXP_FWD_CORE wxDocManager;
 303
 304 public:
 305     // Associate document and view types. They're for identifying what view is
 306     // associated with what template/document type
 307     wxDocTemplate(wxDocManager *manager,
 308                   const wxString& descr,
 309                   const wxString& filter,
 310                   const wxString& dir,
 311                   const wxString& ext,
 312                   const wxString& docTypeName,
 313                   const wxString& viewTypeName,
 314                   wxClassInfo *docClassInfo = NULL,
 315                   wxClassInfo *viewClassInfo = NULL,
 316                   long flags = wxDEFAULT_TEMPLATE_FLAGS);
 317
 318     virtual ~wxDocTemplate();
 319
 320     // By default, these two member functions dynamically creates document and
 321     // view using dynamic instance construction. Override these if you need a
 322     // different method of construction.
 323     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 324     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 325
 326     // Helper method for CreateDocument; also allows you to do your own document
 327     // creation
 328     virtual bool InitDocument(wxDocument* doc,
 329                               const wxString& path,
 330                               long flags = 0);
 331
 332     wxString GetDefaultExtension() const { return m_defaultExt; }
 333     wxString GetDescription() const { return m_description; }
 334     wxString GetDirectory() const { return m_directory; }
 335     wxDocManager *GetDocumentManager() const { return m_documentManager; }
 336     void SetDocumentManager(wxDocManager *manager)
 337         { m_documentManager = manager; }
 338     wxString GetFileFilter() const { return m_fileFilter; }
 339     long GetFlags() const { return m_flags; }
 340     virtual wxString GetViewName() const { return m_viewTypeName; }
 341     virtual wxString GetDocumentName() const { return m_docTypeName; }
 342
 343     void SetFileFilter(const wxString& filter) { m_fileFilter = filter; }
 344     void SetDirectory(const wxString& dir) { m_directory = dir; }
 345     void SetDescription(const wxString& descr) { m_description = descr; }
 346     void SetDefaultExtension(const wxString& ext) { m_defaultExt = ext; }
 347     void SetFlags(long flags) { m_flags = flags; }
 348
 349     bool IsVisible() const { return (m_flags & wxTEMPLATE_VISIBLE) != 0; }
 350
 351     wxClassInfo* GetDocClassInfo() const { return m_docClassInfo; }
 352     wxClassInfo* GetViewClassInfo() const { return m_viewClassInfo; }
 353
 354     virtual bool FileMatchesTemplate(const wxString& path);
 355
 356 protected:
 357     long              m_flags;
 358     wxString          m_fileFilter;
 359     wxString          m_directory;
 360     wxString          m_description;
 361     wxString          m_defaultExt;
 362     wxString          m_docTypeName;
 363     wxString          m_viewTypeName;
 364     wxDocManager*     m_documentManager;
 365
 366     // For dynamic creation of appropriate instances.
 367     wxClassInfo*      m_docClassInfo;
 368     wxClassInfo*      m_viewClassInfo;
 369
 370     // Called by CreateDocument and CreateView to create the actual
 371     // document/view object.
 372     //
 373     // By default uses the ClassInfo provided to the constructor. Override
 374     // these functions to provide a different method of creation.
 375     virtual wxDocument *DoCreateDocument();
 376     virtual wxView *DoCreateView();
 377
 378 private:
 379     DECLARE_CLASS(wxDocTemplate)
 380     wxDECLARE_NO_COPY_CLASS(wxDocTemplate);
 381 };
 382
 383 // One object of this class may be created in an application, to manage all
 384 // the templates and documents.
 385 class WXDLLIMPEXP_CORE wxDocManager: public wxEvtHandler
 386 {
 387 public:
 388     // NB: flags are unused, don't pass wxDOC_XXX to this ctor
 389     wxDocManager(long flags = 0, bool initialize = true);
 390     virtual ~wxDocManager();
 391
 392     virtual bool Initialize();
 393
 394     // Handlers for common user commands
 395     void OnFileClose(wxCommandEvent& event);
 396     void OnFileCloseAll(wxCommandEvent& event);
 397     void OnFileNew(wxCommandEvent& event);
 398     void OnFileOpen(wxCommandEvent& event);
 399     void OnFileRevert(wxCommandEvent& event);
 400     void OnFileSave(wxCommandEvent& event);
 401     void OnFileSaveAs(wxCommandEvent& event);
 402     void OnMRUFile(wxCommandEvent& event);
 403 #if wxUSE_PRINTING_ARCHITECTURE
 404     void OnPrint(wxCommandEvent& event);
 405     void OnPreview(wxCommandEvent& event);
 406     void OnPageSetup(wxCommandEvent& event);
 407 #endif // wxUSE_PRINTING_ARCHITECTURE
 408     void OnUndo(wxCommandEvent& event);
 409     void OnRedo(wxCommandEvent& event);
 410
 411     // Handlers for UI update commands
 412     void OnUpdateFileOpen(wxUpdateUIEvent& event);
 413     void OnUpdateDisableIfNoDoc(wxUpdateUIEvent& event);
 414     void OnUpdateFileRevert(wxUpdateUIEvent& event);
 415     void OnUpdateFileNew(wxUpdateUIEvent& event);
 416     void OnUpdateFileSave(wxUpdateUIEvent& event);
 417     void OnUpdateFileSaveAs(wxUpdateUIEvent& event);
 418     void OnUpdateUndo(wxUpdateUIEvent& event);
 419     void OnUpdateRedo(wxUpdateUIEvent& event);
 420
 421     // called when file format detection didn't work, can be overridden to do
 422     // something in this case
 423     virtual void OnOpenFileFailure() { }
 424
 425     virtual wxDocument *CreateDocument(const wxString& path, long flags = 0);
 426
 427     // wrapper around CreateDocument() with a more clear name
 428     wxDocument *CreateNewDocument()
 429         { return CreateDocument(wxString(), wxDOC_NEW); }
 430
 431     virtual wxView *CreateView(wxDocument *doc, long flags = 0);
 432     virtual void DeleteTemplate(wxDocTemplate *temp, long flags = 0);
 433     virtual bool FlushDoc(wxDocument *doc);
 434     virtual wxDocTemplate *MatchTemplate(const wxString& path);
 435     virtual wxDocTemplate *SelectDocumentPath(wxDocTemplate **templates,
 436             int noTemplates, wxString& path, long flags, bool save = false);
 437     virtual wxDocTemplate *SelectDocumentType(wxDocTemplate **templates,
 438             int noTemplates, bool sort = false);
 439     virtual wxDocTemplate *SelectViewType(wxDocTemplate **templates,
 440             int noTemplates, bool sort = false);
 441     virtual wxDocTemplate *FindTemplateForPath(const wxString& path);
 442
 443     void AssociateTemplate(wxDocTemplate *temp);
 444     void DisassociateTemplate(wxDocTemplate *temp);
 445
 446     // Find template from document class info, may return NULL.
 447     wxDocTemplate* FindTemplate(const wxClassInfo* documentClassInfo);
 448
 449     // Find document from file name, may return NULL.
 450     wxDocument* FindDocumentByPath(const wxString& path) const;
 451
 452     wxDocument *GetCurrentDocument() const;
 453
 454     void SetMaxDocsOpen(int n) { m_maxDocsOpen = n; }
 455     int GetMaxDocsOpen() const { return m_maxDocsOpen; }
 456
 457     // Add and remove a document from the manager's list
 458     void AddDocument(wxDocument *doc);
 459     void RemoveDocument(wxDocument *doc);
 460
 461     // closes all currently open documents
 462     bool CloseDocuments(bool force = true);
 463
 464     // closes the specified document
 465     bool CloseDocument(wxDocument* doc, bool force = false);
 466
 467     // Clear remaining documents and templates
 468     bool Clear(bool force = true);
 469
 470     // Views or windows should inform the document manager
 471     // when a view is going in or out of focus
 472     virtual void ActivateView(wxView *view, bool activate = true);
 473     virtual wxView *GetCurrentView() const { return m_currentView; }
 474
 475 #ifndef __VISUALC6__
 476     wxDocVector GetDocumentsVector() const;
 477     wxDocTemplateVector GetTemplatesVector() const;
 478 #endif // !__VISUALC6__
 479
 480     wxList& GetDocuments() { return m_docs; }
 481     wxList& GetTemplates() { return m_templates; }
 482
 483     // Return the default name for a new document (by default returns strings
 484     // in the form "unnamed <counter>" but can be overridden)
 485     virtual wxString MakeNewDocumentName();
 486
 487     // Make a frame title (override this to do something different)
 488     virtual wxString MakeFrameTitle(wxDocument* doc);
 489
 490     virtual wxFileHistory *OnCreateFileHistory();
 491     virtual wxFileHistory *GetFileHistory() const { return m_fileHistory; }
 492
 493     // File history management
 494     virtual void AddFileToHistory(const wxString& file);
 495     virtual void RemoveFileFromHistory(size_t i);
 496     virtual size_t GetHistoryFilesCount() const;
 497     virtual wxString GetHistoryFile(size_t i) const;
 498     virtual void FileHistoryUseMenu(wxMenu *menu);
 499     virtual void FileHistoryRemoveMenu(wxMenu *menu);
 500 #if wxUSE_CONFIG
 501     virtual void FileHistoryLoad(const wxConfigBase& config);
 502     virtual void FileHistorySave(wxConfigBase& config);
 503 #endif // wxUSE_CONFIG
 504
 505     virtual void FileHistoryAddFilesToMenu();
 506     virtual void FileHistoryAddFilesToMenu(wxMenu* menu);
 507
 508     wxString GetLastDirectory() const;
 509     void SetLastDirectory(const wxString& dir) { m_lastDirectory = dir; }
 510
 511     // Get the current document manager
 512     static wxDocManager* GetDocumentManager() { return sm_docManager; }
 513
 514 #if wxUSE_PRINTING_ARCHITECTURE
 515     wxPageSetupDialogData& GetPageSetupDialogData()
 516         { return m_pageSetupDialogData; }
 517     const wxPageSetupDialogData& GetPageSetupDialogData() const
 518         { return m_pageSetupDialogData; }
 519 #endif // wxUSE_PRINTING_ARCHITECTURE
 520
 521 #if WXWIN_COMPATIBILITY_2_8
 522     // deprecated, override GetDefaultName() instead
 523     wxDEPRECATED_BUT_USED_INTERNALLY(
 524         virtual bool MakeDefaultName(wxString& buf)
 525     );
 526 #endif
 527
 528 #if WXWIN_COMPATIBILITY_2_6
 529     // deprecated, use GetHistoryFilesCount() instead
 530     wxDEPRECATED( size_t GetNoHistoryFiles() const );
 531 #endif // WXWIN_COMPATIBILITY_2_6
 532
 533
 534 protected:
 535     // Called when a file selected from the MRU list doesn't exist any more.
 536     // The default behaviour is to remove the file from the MRU and notify the
 537     // user about it but this method can be overridden to customize it.
 538     virtual void OnMRUFileNotExist(unsigned n, const wxString& filename);
 539
 540     // Open the MRU file with the given index in our associated file history.
 541     void DoOpenMRUFile(unsigned n);
 542 #if wxUSE_PRINTING_ARCHITECTURE
 543     virtual wxPreviewFrame* CreatePreviewFrame(wxPrintPreviewBase* preview,
 544                                                wxWindow *parent,
 545                                                const wxString& title);
 546 #endif // wxUSE_PRINTING_ARCHITECTURE
 547
 548     // hook the currently active view into event handlers chain here
 549     virtual bool TryBefore(wxEvent& event);
 550
 551     // return the command processor for the current document, if any
 552     wxCommandProcessor *GetCurrentCommandProcessor() const;
 553
 554     // this method tries to find an active view harder than GetCurrentView():
 555     // if the latter is NULL, it also checks if we don't have just a single
 556     // view and returns it then
 557     wxView *GetActiveView() const;
 558
 559     int               m_defaultDocumentNameCounter;
 560     int               m_maxDocsOpen;
 561     wxList            m_docs;
 562     wxList            m_templates;
 563     wxView*           m_currentView;
 564     wxFileHistory*    m_fileHistory;
 565     wxString          m_lastDirectory;
 566     static wxDocManager* sm_docManager;
 567
 568 #if wxUSE_PRINTING_ARCHITECTURE
 569     wxPageSetupDialogData m_pageSetupDialogData;
 570 #endif // wxUSE_PRINTING_ARCHITECTURE
 571
 572     DECLARE_EVENT_TABLE()
 573     DECLARE_DYNAMIC_CLASS(wxDocManager)
 574     wxDECLARE_NO_COPY_CLASS(wxDocManager);
 575 };
 576
 577 #if WXWIN_COMPATIBILITY_2_6
 578 inline size_t wxDocManager::GetNoHistoryFiles() const
 579 {
 580     return GetHistoryFilesCount();
 581 }
 582 #endif // WXWIN_COMPATIBILITY_2_6
 583
 584 // ----------------------------------------------------------------------------
 585 // Base class for child frames -- this is what wxView renders itself into
 586 //
 587 // Notice that this is a mix-in class so it doesn't derive from wxWindow, only
 588 // wxDocChildFrameAny does
 589 // ----------------------------------------------------------------------------
 590
 591 class WXDLLIMPEXP_CORE wxDocChildFrameAnyBase
 592 {
 593 public:
 594     // default ctor, use Create() after it
 595     wxDocChildFrameAnyBase()
 596     {
 597         m_childDocument = NULL;
 598         m_childView = NULL;
 599         m_win = NULL;
 600     }
 601
 602     // full ctor equivalent to using the default one and Create(0
 603     wxDocChildFrameAnyBase(wxDocument *doc, wxView *view, wxWindow *win)
 604     {
 605         Create(doc, view, win);
 606     }
 607
 608     // method which must be called for an object created using the default ctor
 609     //
 610     // note that it returns bool just for consistency with Create() methods in
 611     // other classes, we never return false from here
 612     bool Create(wxDocument *doc, wxView *view, wxWindow *win)
 613     {
 614         m_childDocument = doc;
 615         m_childView = view;
 616         m_win = win;
 617
 618         if ( view )
 619             view->SetDocChildFrame(this);
 620
 621         return true;
 622     }
 623
 624     // dtor doesn't need to be virtual, an object should never be destroyed via
 625     // a pointer to this class
 626     ~wxDocChildFrameAnyBase()
 627     {
 628         // prevent the view from deleting us if we're being deleted directly
 629         // (and not via Close() + Destroy())
 630         if ( m_childView )
 631             m_childView->SetDocChildFrame(NULL);
 632     }
 633
 634     wxDocument *GetDocument() const { return m_childDocument; }
 635     wxView *GetView() const { return m_childView; }
 636     void SetDocument(wxDocument *doc) { m_childDocument = doc; }
 637     void SetView(wxView *view) { m_childView = view; }
 638
 639     wxWindow *GetWindow() const { return m_win; }
 640
 641 protected:
 642     // we're not a wxEvtHandler but we provide this wxEvtHandler-like function
 643     // which is called from TryBefore() of the derived classes to give our view
 644     // a chance to process the message before the frame event handlers are used
 645     bool TryProcessEvent(wxEvent& event)
 646     {
 647         return m_childView && m_childView->ProcessEventLocally(event);
 648     }
 649
 650     // called from EVT_CLOSE handler in the frame: check if we can close and do
 651     // cleanup if so; veto the event otherwise
 652     bool CloseView(wxCloseEvent& event);
 653
 654
 655     wxDocument*       m_childDocument;
 656     wxView*           m_childView;
 657
 658     // the associated window: having it here is not terribly elegant but it
 659     // allows us to avoid having any virtual functions in this class
 660     wxWindow* m_win;
 661
 662
 663     wxDECLARE_NO_COPY_CLASS(wxDocChildFrameAnyBase);
 664 };
 665
 666 // ----------------------------------------------------------------------------
 667 // Template implementing child frame concept using the given wxFrame-like class
 668 //
 669 // This is used to define wxDocChildFrame and wxDocMDIChildFrame: ChildFrame is
 670 // a wxFrame or wxMDIChildFrame (although in theory it could be any wxWindow-
 671 // derived class as long as it provided a ctor with the same signature as
 672 // wxFrame and OnActivate() method) and ParentFrame is either wxFrame or
 673 // wxMDIParentFrame.
 674 // ----------------------------------------------------------------------------
 675
 676 template <class ChildFrame, class ParentFrame>
 677 class WXDLLIMPEXP_CORE wxDocChildFrameAny : public ChildFrame,
 678                                             public wxDocChildFrameAnyBase
 679 {
 680 public:
 681     typedef ChildFrame BaseClass;
 682
 683     // default ctor, use Create after it
 684     wxDocChildFrameAny() { }
 685
 686     // ctor for a frame showing the given view of the specified document
 687     wxDocChildFrameAny(wxDocument *doc,
 688                        wxView *view,
 689                        ParentFrame *parent,
 690                        wxWindowID id,
 691                        const wxString& title,
 692                        const wxPoint& pos = wxDefaultPosition,
 693                        const wxSize& size = wxDefaultSize,
 694                        long style = wxDEFAULT_FRAME_STYLE,
 695                        const wxString& name = wxFrameNameStr)
 696     {
 697         Create(doc, view, parent, id, title, pos, size, style, name);
 698     }
 699
 700     bool Create(wxDocument *doc,
 701                 wxView *view,
 702                 ParentFrame *parent,
 703                 wxWindowID id,
 704                 const wxString& title,
 705                 const wxPoint& pos = wxDefaultPosition,
 706                 const wxSize& size = wxDefaultSize,
 707                 long style = wxDEFAULT_FRAME_STYLE,
 708                 const wxString& name = wxFrameNameStr)
 709     {
 710         if ( !wxDocChildFrameAnyBase::Create(doc, view, this) )
 711             return false;
 712
 713         if ( !BaseClass::Create(parent, id, title, pos, size, style, name) )
 714             return false;
 715
 716         this->Connect(wxEVT_ACTIVATE,
 717                       wxActivateEventHandler(wxDocChildFrameAny::OnActivate));
 718         this->Connect(wxEVT_CLOSE_WINDOW,
 719                       wxCloseEventHandler(wxDocChildFrameAny::OnCloseWindow));
 720
 721         return true;
 722     }
 723
 724     virtual bool Destroy()
 725     {
 726         // FIXME: why exactly do we do this? to avoid activation events during
 727         //        destructions maybe?
 728         m_childView = NULL;
 729         return BaseClass::Destroy();
 730     }
 731
 732 protected:
 733     // hook the child view into event handlers chain here
 734     virtual bool TryBefore(wxEvent& event)
 735     {
 736         return TryProcessEvent(event) || BaseClass::TryBefore(event);
 737     }
 738
 739 private:
 740     void OnActivate(wxActivateEvent& event)
 741     {
 742         BaseClass::OnActivate(event);
 743
 744         if ( m_childView )
 745             m_childView->Activate(event.GetActive());
 746     }
 747
 748     void OnCloseWindow(wxCloseEvent& event)
 749     {
 750         if ( CloseView(event) )
 751             Destroy();
 752         //else: vetoed
 753     }
 754
 755     wxDECLARE_NO_COPY_TEMPLATE_CLASS_2(wxDocChildFrameAny,
 756                                         ChildFrame, ParentFrame);
 757 };
 758
 759 // ----------------------------------------------------------------------------
 760 // A default child frame: we need to define it as a class just for wxRTTI,
 761 // otherwise we could simply typedef it
 762 // ----------------------------------------------------------------------------
 763
 764 #ifdef __VISUALC6__
 765     // "non dll-interface class 'wxDocChildFrameAny<>' used as base interface
 766     // for dll-interface class 'wxDocChildFrame'" -- this is bogus as the
 767     // template will be DLL-exported but only once it is used as base class
 768     // here!
 769     #pragma warning (push)
 770     #pragma warning (disable:4275)
 771 #endif
 772
 773 typedef wxDocChildFrameAny<wxFrame, wxFrame> wxDocChildFrameBase;
 774
 775 class WXDLLIMPEXP_CORE wxDocChildFrame : public wxDocChildFrameBase
 776 {
 777 public:
 778     wxDocChildFrame()
 779     {
 780     }
 781
 782     wxDocChildFrame(wxDocument *doc,
 783                     wxView *view,
 784                     wxFrame *parent,
 785                     wxWindowID id,
 786                     const wxString& title,
 787                     const wxPoint& pos = wxDefaultPosition,
 788                     const wxSize& size = wxDefaultSize,
 789                     long style = wxDEFAULT_FRAME_STYLE,
 790                     const wxString& name = wxFrameNameStr)
 791         : wxDocChildFrameBase(doc, view,
 792                               parent, id, title, pos, size, style, name)
 793     {
 794     }
 795
 796     bool Create(wxDocument *doc,
 797                 wxView *view,
 798                 wxFrame *parent,
 799                 wxWindowID id,
 800                 const wxString& title,
 801                 const wxPoint& pos = wxDefaultPosition,
 802                 const wxSize& size = wxDefaultSize,
 803                 long style = wxDEFAULT_FRAME_STYLE,
 804                 const wxString& name = wxFrameNameStr)
 805     {
 806         return wxDocChildFrameBase::Create
 807                (
 808                     doc, view,
 809                     parent, id, title, pos, size, style, name
 810                );
 811     }
 812
 813 private:
 814     DECLARE_CLASS(wxDocChildFrame)
 815     wxDECLARE_NO_COPY_CLASS(wxDocChildFrame);
 816 };
 817
 818 // ----------------------------------------------------------------------------
 819 // wxDocParentFrame and related classes.
 820 //
 821 // As with wxDocChildFrame we define a template base class used by both normal
 822 // and MDI versions
 823 // ----------------------------------------------------------------------------
 824
 825 // Base class containing type-independent code of wxDocParentFrameAny
 826 //
 827 // Similarly to wxDocChildFrameAnyBase, this class is a mix-in and doesn't
 828 // derive from wxWindow.
 829 class WXDLLIMPEXP_CORE wxDocParentFrameAnyBase
 830 {
 831 public:
 832     wxDocParentFrameAnyBase() { m_docManager = NULL; }
 833
 834     wxDocManager *GetDocumentManager() const { return m_docManager; }
 835
 836 protected:
 837     wxDocManager *m_docManager;
 838
 839     wxDECLARE_NO_COPY_CLASS(wxDocParentFrameAnyBase);
 840 };
 841
 842 // This is similar to wxDocChildFrameAny and is used to provide common
 843 // implementation for both wxDocParentFrame and wxDocMDIParentFrame
 844 template <class BaseFrame>
 845 class WXDLLIMPEXP_CORE wxDocParentFrameAny : public BaseFrame,
 846                                              public wxDocParentFrameAnyBase
 847 {
 848 public:
 849     wxDocParentFrameAny() { }
 850     wxDocParentFrameAny(wxDocManager *manager,
 851                         wxFrame *frame,
 852                         wxWindowID id,
 853                         const wxString& title,
 854                         const wxPoint& pos = wxDefaultPosition,
 855                         const wxSize& size = wxDefaultSize,
 856                         long style = wxDEFAULT_FRAME_STYLE,
 857                         const wxString& name = wxFrameNameStr)
 858     {
 859         Create(manager, frame, id, title, pos, size, style, name);
 860     }
 861
 862     bool Create(wxDocManager *manager,
 863                 wxFrame *frame,
 864                 wxWindowID id,
 865                 const wxString& title,
 866                 const wxPoint& pos = wxDefaultPosition,
 867                 const wxSize& size = wxDefaultSize,
 868                 long style = wxDEFAULT_FRAME_STYLE,
 869                 const wxString& name = wxFrameNameStr)
 870     {
 871         m_docManager = manager;
 872
 873         if ( !BaseFrame::Create(frame, id, title, pos, size, style, name) )
 874             return false;
 875
 876         this->Connect(wxID_EXIT, wxEVT_COMMAND_MENU_SELECTED,
 877                       wxCommandEventHandler(wxDocParentFrameAny::OnExit));
 878         this->Connect(wxEVT_CLOSE_WINDOW,
 879                       wxCloseEventHandler(wxDocParentFrameAny::OnCloseWindow));
 880
 881         return true;
 882     }
 883
 884 protected:
 885     // hook the document manager into event handling chain here
 886     virtual bool TryBefore(wxEvent& event)
 887     {
 888         if ( m_docManager && m_docManager->ProcessEventLocally(event) )
 889             return true;
 890
 891         return BaseFrame::TryBefore(event);
 892     }
 893
 894 private:
 895     void OnExit(wxCommandEvent& WXUNUSED(event))
 896     {
 897         this->Close();
 898     }
 899
 900     void OnCloseWindow(wxCloseEvent& event)
 901     {
 902         if ( m_docManager && !m_docManager->Clear(!event.CanVeto()) )
 903         {
 904             // The user decided not to close finally, abort.
 905             event.Veto();
 906         }
 907         else
 908         {
 909             // Just skip the event, base class handler will destroy the window.
 910             event.Skip();
 911         }
 912     }
 913
 914
 915     wxDECLARE_NO_COPY_CLASS(wxDocParentFrameAny);
 916 };
 917
 918 typedef wxDocParentFrameAny<wxFrame> wxDocParentFrameBase;
 919
 920 class WXDLLIMPEXP_CORE wxDocParentFrame : public wxDocParentFrameBase
 921 {
 922 public:
 923     wxDocParentFrame() : wxDocParentFrameBase() { }
 924
 925     wxDocParentFrame(wxDocManager *manager,
 926                      wxFrame *parent,
 927                      wxWindowID id,
 928                      const wxString& title,
 929                      const wxPoint& pos = wxDefaultPosition,
 930                      const wxSize& size = wxDefaultSize,
 931                      long style = wxDEFAULT_FRAME_STYLE,
 932                      const wxString& name = wxFrameNameStr)
 933         : wxDocParentFrameBase(manager,
 934                                parent, id, title, pos, size, style, name)
 935     {
 936     }
 937
 938     bool Create(wxDocManager *manager,
 939                 wxFrame *parent,
 940                 wxWindowID id,
 941                 const wxString& title,
 942                 const wxPoint& pos = wxDefaultPosition,
 943                 const wxSize& size = wxDefaultSize,
 944                 long style = wxDEFAULT_FRAME_STYLE,
 945                 const wxString& name = wxFrameNameStr)
 946     {
 947         return wxDocParentFrameBase::Create(manager,
 948                                             parent, id, title,
 949                                             pos, size, style, name);
 950     }
 951
 952 private:
 953     DECLARE_CLASS(wxDocParentFrame)
 954     wxDECLARE_NO_COPY_CLASS(wxDocParentFrame);
 955 };
 956
 957 #ifdef __VISUALC6__
 958     // reenable warning 4275
 959     #pragma warning (pop)
 960 #endif
 961
 962 // ----------------------------------------------------------------------------
 963 // Provide simple default printing facilities
 964 // ----------------------------------------------------------------------------
 965
 966 #if wxUSE_PRINTING_ARCHITECTURE
 967 class WXDLLIMPEXP_CORE wxDocPrintout : public wxPrintout
 968 {
 969 public:
 970     wxDocPrintout(wxView *view = NULL, const wxString& title = wxString());
 971
 972     // implement wxPrintout methods
 973     virtual bool OnPrintPage(int page);
 974     virtual bool HasPage(int page);
 975     virtual bool OnBeginDocument(int startPage, int endPage);
 976     virtual void GetPageInfo(int *minPage, int *maxPage,
 977                              int *selPageFrom, int *selPageTo);
 978
 979     virtual wxView *GetView() { return m_printoutView; }
 980
 981 protected:
 982     wxView*       m_printoutView;
 983
 984 private:
 985     DECLARE_DYNAMIC_CLASS(wxDocPrintout)
 986     wxDECLARE_NO_COPY_CLASS(wxDocPrintout);
 987 };
 988 #endif // wxUSE_PRINTING_ARCHITECTURE
 989
 990 // For compatibility with existing file formats:
 991 // converts from/to a stream to/from a temporary file.
 992 #if wxUSE_STD_IOSTREAM
 993 bool WXDLLIMPEXP_CORE
 994 wxTransferFileToStream(const wxString& filename, wxSTD ostream& stream);
 995 bool WXDLLIMPEXP_CORE
 996 wxTransferStreamToFile(wxSTD istream& stream, const wxString& filename);
 997 #else
 998 bool WXDLLIMPEXP_CORE
 999 wxTransferFileToStream(const wxString& filename, wxOutputStream& stream);
1000 bool WXDLLIMPEXP_CORE
1001 wxTransferStreamToFile(wxInputStream& stream, const wxString& filename);
1002 #endif // wxUSE_STD_IOSTREAM
1003
1004
1005 // these flags are not used anywhere by wxWidgets and kept only for an unlikely
1006 // case of existing user code using them for its own purposes
1007 #if WXWIN_COMPATIBILITY_2_8
1008 enum
1009 {
1010     wxDOC_SDI = 1,
1011     wxDOC_MDI,
1012     wxDEFAULT_DOCMAN_FLAGS = wxDOC_SDI
1013 };
1014 #endif // WXWIN_COMPATIBILITY_2_8
1015
1016 #ifndef __VISUALC6__
1017 inline wxViewVector wxDocument::GetViewsVector() const
1018 {
1019     return m_documentViews.AsVector<wxView*>();
1020 }
1021
1022 inline wxDocVector wxDocManager::GetDocumentsVector() const
1023 {
1024     return m_docs.AsVector<wxDocument*>();
1025 }
1026
1027 inline wxDocTemplateVector wxDocManager::GetTemplatesVector() const
1028 {
1029     return m_templates.AsVector<wxDocTemplate*>();
1030 }
1031 #endif // !__VISUALC6__
1032
1033 #endif // wxUSE_DOC_VIEW_ARCHITECTURE
1034
1035 #endif // _WX_DOCH__