include/wx/msw/treectrl.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        treectrl.h
   3 // Purpose:     wxTreeCtrl class
   4 // Author:      Julian Smart
   5 // Modified by: Vadim Zeitlin to be less MSW-specific on 10/10/98
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_TREECTRL_H_
  13 #define _WX_TREECTRL_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18 #ifdef __GNUG__
  19     #pragma interface "treectrl.h"
  20 #endif
  21
  22 #include "wx/control.h"
  23 #include "wx/event.h"
  24
  25 // the type for "untyped" data
  26 typedef long wxDataType;
  27
  28 // fwd decl
  29 class  wxImageList;
  30 struct wxTreeViewItem;
  31
  32 // a callback function used for sorting tree items, it should return -1 if the
  33 // first item precedes the second, +1 if the second precedes the first or 0 if
  34 // they're equivalent
  35 class wxTreeItemData;
  36 typedef int (*wxTreeItemCmpFunc)(wxTreeItemData *item1, wxTreeItemData *item2);
  37
  38 // ----------------------------------------------------------------------------
  39 // constants
  40 // ----------------------------------------------------------------------------
  41
  42 // values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
  43 // where exactly the specified point is situated:
  44     // above the client area.
  45 static const int wxTREE_HITTEST_ABOVE            = 0x0001;
  46     // below the client area.
  47 static const int wxTREE_HITTEST_BELOW            = 0x0002;
  48     // in the client area but below the last item.
  49 static const int wxTREE_HITTEST_NOWHERE          = 0x0004;
  50     // on the button associated with an item.
  51 static const int wxTREE_HITTEST_ONITEMBUTTON     = 0x0010;
  52     // on the bitmap associated with an item.
  53 static const int wxTREE_HITTEST_ONITEMICON       = 0x0020;
  54     // in the indentation associated with an item.
  55 static const int wxTREE_HITTEST_ONITEMINDENT     = 0x0040;
  56     // on the label (string) associated with an item.
  57 static const int wxTREE_HITTEST_ONITEMLABEL      = 0x0080;
  58     // in the area to the right of an item.
  59 static const int wxTREE_HITTEST_ONITEMRIGHT      = 0x0100;
  60     // on the state icon for a tree view item that is in a user-defined state.
  61 static const int wxTREE_HITTEST_ONITEMSTATEICON  = 0x0200;
  62     // to the right of the client area.
  63 static const int wxTREE_HITTEST_TOLEFT           = 0x0400;
  64     // to the left of the client area.
  65 static const int wxTREE_HITTEST_TORIGHT          = 0x0800;
  66     // anywhere on the item
  67 static const int wxTREE_HITTEST_ONITEM  = wxTREE_HITTEST_ONITEMICON |
  68                                           wxTREE_HITTEST_ONITEMLABEL |
  69                                           wxTREE_HITTEST_ONITEMSTATEICON;
  70
  71 // NB: all the following flags are for compatbility only and will be removed in the
  72 //     next versions
  73
  74 // flags for deprecated `Expand(int action)'
  75 enum
  76 {
  77     wxTREE_EXPAND_EXPAND,
  78     wxTREE_EXPAND_COLLAPSE,
  79     wxTREE_EXPAND_COLLAPSE_RESET,
  80     wxTREE_EXPAND_TOGGLE
  81 };
  82
  83 // flags for deprecated InsertItem() variant
  84 #define wxTREE_INSERT_FIRST 0xFFFF0001
  85 #define wxTREE_INSERT_LAST  0xFFFF0002
  86
  87 // ----------------------------------------------------------------------------
  88 // wxTreeItemId identifies an element of the tree. In this implementation, it's
  89 // just a trivial wrapper around Win32 HTREEITEM. It's opaque for the
  90 // application.
  91 // ----------------------------------------------------------------------------
  92 class WXDLLEXPORT wxTreeItemId
  93 {
  94 public:
  95     // ctors
  96         // 0 is invalid value for HTREEITEM
  97     wxTreeItemId() { m_itemId = 0; }
  98
  99         // default copy ctor/assignment operator are ok for us
 100
 101     // accessors
 102         // is this a valid tree item?
 103     bool IsOk() const { return m_itemId != 0; }
 104
 105     // conversion to/from either real (system-dependent) tree item id or
 106     // to "long" which used to be the type for tree item ids in previous
 107     // versions of wxWindows
 108
 109 #ifdef wxHTREEITEM_DEFINED
 110     // for wxTreeCtrl usage only
 111     wxTreeItemId(HTREEITEM itemId) { m_itemId = (long)itemId; }
 112     operator HTREEITEM() const { return (HTREEITEM)m_itemId; }
 113 #else  // !wxHTREEITEM_DEFINED
 114     // deprecated: only for compatibility
 115     wxTreeItemId(long itemId) { m_itemId = itemId; }
 116     operator long() const { return m_itemId; }
 117 #endif // wxHTREEITEM_DEFINED
 118
 119 protected:
 120     long m_itemId;
 121 };
 122
 123 // ----------------------------------------------------------------------------
 124 // wxTreeItemData is some (arbitrary) user class associated with some item. The
 125 // main advantage of having this class (compared to old untyped interface) is
 126 // that wxTreeItemData's are destroyed automatically by the tree and, as this
 127 // class has virtual dtor, it means that the memory will be automatically
 128 // freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
 129 // the size of this class is critical: in any real application, each tree leaf
 130 // will have wxTreeItemData associated with it and number of leaves may be
 131 // quite big.
 132 //
 133 // Because the objects of this class are deleted by the tree, they should
 134 // always be allocated on the heap!
 135 // ----------------------------------------------------------------------------
 136 class WXDLLEXPORT wxTreeItemData
 137 {
 138 friend class wxTreeCtrl;
 139 public:
 140     // creation/destruction
 141     // --------------------
 142         // default ctor
 143     wxTreeItemData() { }
 144
 145         // default copy ctor/assignment operator are ok
 146
 147         // dtor is virtual and all the items are deleted by the tree control
 148         // when it's deleted, so you normally don't have to care about freeing
 149         // memory allocated in your wxTreeItemData-derived class
 150     virtual ~wxTreeItemData() { }
 151
 152     // accessor: get the item associated with us
 153     const wxTreeItemId& GetItemId() const { return m_itemId; }
 154
 155 protected:
 156     wxTreeItemId m_itemId;
 157 };
 158
 159 // ----------------------------------------------------------------------------
 160 // wxTreeCtrl
 161 // ----------------------------------------------------------------------------
 162 class WXDLLEXPORT wxTreeCtrl : public wxControl
 163 {
 164 public:
 165     // creation
 166     // --------
 167     wxTreeCtrl() { Init(); }
 168
 169     wxTreeCtrl(wxWindow *parent, wxWindowID id = -1,
 170                const wxPoint& pos = wxDefaultPosition,
 171                const wxSize& size = wxDefaultSize,
 172                long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
 173                const wxValidator& validator = wxDefaultValidator,
 174                const wxString& name = "wxTreeCtrl")
 175     {
 176         Create(parent, id, pos, size, style, validator, name);
 177     }
 178
 179     virtual ~wxTreeCtrl();
 180
 181     bool Create(wxWindow *parent, wxWindowID id = -1,
 182                 const wxPoint& pos = wxDefaultPosition,
 183                 const wxSize& size = wxDefaultSize,
 184                 long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
 185                 const wxValidator& validator = wxDefaultValidator,
 186                 const wxString& name = "wxTreeCtrl");
 187
 188     // accessors
 189     // ---------
 190
 191         // get the total number of items in the control
 192     size_t GetCount() const;
 193
 194         // indent is the number of pixels the children are indented relative to
 195         // the parents position. SetIndent() also redraws the control
 196         // immediately.
 197     unsigned int GetIndent() const;
 198     void SetIndent(unsigned int indent);
 199
 200         // image list: these functions allow to associate an image list with
 201         // the control and retrieve it. Note that the control does _not_ delete
 202         // the associated image list when it's deleted in order to allow image
 203         // lists to be shared between different controls.
 204         //
 205         // The normal image list is for the icons which correspond to the
 206         // normal tree item state (whether it is selected or not).
 207         // Additionally, the application might choose to show a state icon
 208         // which corresponds to an app-defined item state (for example,
 209         // checked/unchecked) which are taken from the state image list.
 210     wxImageList *GetImageList() const;
 211     wxImageList *GetStateImageList() const;
 212
 213     void SetImageList(wxImageList *imageList);
 214     void SetStateImageList(wxImageList *imageList);
 215
 216     // Functions to work with tree ctrl items. Unfortunately, they can _not_ be
 217     // member functions of wxTreeItem because they must know the tree the item
 218     // belongs to for Windows implementation and storing the pointer to
 219     // wxTreeCtrl in each wxTreeItem is just too much waste.
 220
 221     // accessors
 222     // ---------
 223
 224         // retrieve items label
 225     wxString GetItemText(const wxTreeItemId& item) const;
 226         // get the normal item image
 227     int GetItemImage(const wxTreeItemId& item) const;
 228         // get the selected item image
 229     int GetItemSelectedImage(const wxTreeItemId& item) const;
 230         // get the data associated with the item
 231     wxTreeItemData *GetItemData(const wxTreeItemId& item) const;
 232
 233     // modifiers
 234     // ---------
 235
 236         // set items label
 237     void SetItemText(const wxTreeItemId& item, const wxString& text);
 238         // set the normal item image
 239     void SetItemImage(const wxTreeItemId& item, int image);
 240         // set the selected item image
 241     void SetItemSelectedImage(const wxTreeItemId& item, int image);
 242         // associate some data with the item
 243     void SetItemData(const wxTreeItemId& item, wxTreeItemData *data);
 244
 245     // item status inquiries
 246     // ---------------------
 247
 248         // is the item visible (it might be outside the view or not expanded)?
 249     bool IsVisible(const wxTreeItemId& item) const;
 250         // does the item has any children?
 251     bool ItemHasChildren(const wxTreeItemId& item) const;
 252         // is the item expanded (only makes sense if HasChildren())?
 253     bool IsExpanded(const wxTreeItemId& item) const;
 254         // is this item currently selected (the same as has focus)?
 255     bool IsSelected(const wxTreeItemId& item) const;
 256
 257     // navigation
 258     // ----------
 259
 260     // wxTreeItemId.IsOk() will return FALSE if there is no such item
 261
 262         // get the root tree item
 263     wxTreeItemId GetRootItem() const;
 264
 265         // get the item currently selected (may return NULL if no selection)
 266     wxTreeItemId GetSelection() const;
 267
 268         // get the parent of this item (may return NULL if root)
 269     wxTreeItemId GetParent(const wxTreeItemId& item) const;
 270
 271         // for this enumeration function you must pass in a "cookie" parameter
 272         // which is opaque for the application but is necessary for the library
 273         // to make these functions reentrant (i.e. allow more than one
 274         // enumeration on one and the same object simultaneously). Of course,
 275         // the "cookie" passed to GetFirstChild() and GetNextChild() should be
 276         // the same!
 277
 278         // get the first child of this item
 279     wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& cookie) const;
 280         // get the next child
 281     wxTreeItemId GetNextChild(const wxTreeItemId& item, long& cookie) const;
 282
 283         // get the next sibling of this item
 284     wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
 285         // get the previous sibling
 286     wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;
 287
 288         // get first visible item
 289     wxTreeItemId GetFirstVisibleItem() const;
 290         // get the next visible item: item must be visible itself!
 291         // see IsVisible() and wxTreeCtrl::GetFirstVisibleItem()
 292     wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
 293         // get the previous visible item: item must be visible itself!
 294     wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;
 295
 296     // operations
 297     // ----------
 298
 299         // add the root node to the tree
 300     wxTreeItemId AddRoot(const wxString& text,
 301                          int image = -1, int selectedImage = -1,
 302                          wxTreeItemData *data = NULL);
 303
 304         // insert a new item in as the first child of the parent
 305     wxTreeItemId PrependItem(const wxTreeItemId& parent,
 306                              const wxString& text,
 307                              int image = -1, int selectedImage = -1,
 308                              wxTreeItemData *data = NULL);
 309
 310         // insert a new item after a given one
 311     wxTreeItemId InsertItem(const wxTreeItemId& parent,
 312                             const wxTreeItemId& idPrevious,
 313                             const wxString& text,
 314                             int image = -1, int selectedImage = -1,
 315                             wxTreeItemData *data = NULL);
 316
 317         // insert a new item in as the last child of the parent
 318     wxTreeItemId AppendItem(const wxTreeItemId& parent,
 319                             const wxString& text,
 320                             int image = -1, int selectedImage = -1,
 321                             wxTreeItemData *data = NULL);
 322
 323         // delete this item and associated data if any
 324     void Delete(const wxTreeItemId& item);
 325         // delete all items from the tree
 326     void DeleteAllItems();
 327
 328         // expand this item
 329     void Expand(const wxTreeItemId& item);
 330         // collapse the item without removing its children
 331     void Collapse(const wxTreeItemId& item);
 332         // collapse the item and remove all children
 333     void CollapseAndReset(const wxTreeItemId& item);
 334         // toggles the current state
 335     void Toggle(const wxTreeItemId& item);
 336
 337         // remove the selection from currently selected item (if any)
 338     void Unselect();
 339         // select this item
 340     void SelectItem(const wxTreeItemId& item);
 341         // make sure this item is visible (expanding the parent item and/or
 342         // scrolling to this item if necessary)
 343     void EnsureVisible(const wxTreeItemId& item);
 344         // scroll to this item (but don't expand its parent)
 345     void ScrollTo(const wxTreeItemId& item);
 346
 347         // start editing the item label: this (temporarily) replaces the item
 348         // with a one line edit control. The item will be selected if it hadn't
 349         // been before. textCtrlClass parameter allows you to create an edit
 350         // control of arbitrary user-defined class deriving from wxTextCtrl.
 351     wxTextCtrl* EditLabel(const wxTreeItemId& item,
 352                           wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl));
 353         // returns the same pointer as StartEdit() if the item is being edited,
 354         // NULL otherwise (it's assumed that no more than one item may be
 355         // edited simultaneously)
 356     wxTextCtrl* GetEditControl() const;
 357         // end editing and accept or discard the changes to item label
 358     void EndEditLabel(const wxTreeItemId& item, bool discardChanges = FALSE);
 359
 360         // sort the children of this item using the specified callback function
 361         // (it should return -1, 0 or +1 as usual), if it's not specified
 362         // alphabetical comparaison is performed.
 363         //
 364         // NB: this function is not reentrant!
 365     void SortChildren(const wxTreeItemId& item,
 366                       wxTreeItemCmpFunc *cmpFunction = NULL);
 367
 368     // helpers
 369     // -------
 370
 371     // @@@ do we really need to expose these functions to the application?
 372
 373         // get the bounding rectangle of the item (or of its label only)
 374     void GetBoundingRect(const wxTreeItemId& item,
 375                          wxRectangle& rect,
 376                          bool textOnly = FALSE) const;
 377
 378         // determine to which item (if any) belongs the given point (the
 379         // coordinates specified are relative to the client area of tree ctrl)
 380         // and fill the flags parameter with a bitmask of wxTREE_HITTEST_xxx
 381         // constants
 382     wxTreeItemId HitTest(const wxPoint& point, int& flags);
 383
 384     // deprecated
 385     // ----------
 386
 387     // these methods are deprecated and will be removed in future versions of
 388     // wxWindows, they're here for compatibility only, don't use them in new
 389     // code (the comments indicate why these methods are now useless and how to
 390     // replace them)
 391
 392         // use Expand, Collapse, CollapseAndReset or Toggle
 393     void ExpandItem(const wxTreeItemId& item, int action);
 394
 395         // use AddRoot, PrependItem or AppendItem
 396     wxTreeItemId InsertItem(const wxTreeItemId& parent,
 397                             const wxString& text,
 398                             int image = -1, int selImage = -1,
 399                             long insertAfter = wxTREE_INSERT_LAST);
 400
 401         // use Set/GetImageList and Set/GetStateImageList
 402     wxImageList *GetImageList(int) const
 403         { return GetImageList(); }
 404     void SetImageList(wxImageList *imageList, int)
 405         { SetImageList(imageList); }
 406
 407     // implementation
 408     // --------------
 409     void Command(wxCommandEvent& event) { ProcessCommand(event); };
 410     bool MSWCommand(WXUINT param, WXWORD id);
 411     bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam);
 412
 413 protected:
 414     // SetImageList helper
 415     void SetAnyImageList(wxImageList *imageList, int which);
 416
 417     wxTextCtrl*  m_textCtrl;        // used while editing the item label
 418     wxImageList *m_imageListNormal, // images for tree elements
 419                 *m_imageListState;  // special images for app defined states
 420
 421 private:
 422     // the common part of all ctors
 423     void Init();
 424
 425     // helper functions
 426     inline bool DoGetItem(wxTreeViewItem *tvItem) const;
 427     inline void DoSetItem(wxTreeViewItem *tvItem);
 428
 429     inline void DoExpand(const wxTreeItemId& item, int flag);
 430
 431     wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
 432                               wxTreeItemId hInsertAfter,
 433                               const wxString& text,
 434                               int image, int selectedImage,
 435                               wxTreeItemData *data);
 436
 437     void DeleteTextCtrl();
 438
 439     DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
 440 };
 441
 442 // ----------------------------------------------------------------------------
 443 // wxTreeEvent is a special class for all events associated with tree controls
 444 //
 445 // NB: note that not all accessors make sense for all events, see the event
 446 //     descriptions below
 447 // ----------------------------------------------------------------------------
 448 class WXDLLEXPORT wxTreeEvent : public wxCommandEvent
 449 {
 450 friend wxTreeCtrl;
 451 public:
 452     wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
 453
 454     // accessors
 455         // get the item on which the operation was performed or the newly
 456         // selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events
 457     wxTreeItemId GetItem() const { return m_item; }
 458
 459         // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously
 460         // selected item
 461     wxTreeItemId GetOldItem() const { return m_itemOld; }
 462
 463         // the point where the mouse was when the drag operation started (for
 464         // wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only)
 465     wxPoint GetPoint() const { return m_pointDrag; }
 466
 467         // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only)
 468     int GetCode() const { return m_code; }
 469
 470     // set return code for wxEVT_COMMAND_TREE_ITEM_{EXPAND|COLLAPS}ING events
 471         // call this to forbid the change in item status
 472     void Veto() { m_code = TRUE; }
 473
 474 private:
 475     // @@ we could save some space by using union here
 476     int           m_code;
 477     wxTreeItemId  m_item,
 478                   m_itemOld;
 479     wxPoint       m_pointDrag;
 480
 481     DECLARE_DYNAMIC_CLASS(wxTreeEvent)
 482 };
 483
 484 typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
 485
 486 // ----------------------------------------------------------------------------
 487 // macros for handling tree control events
 488 // ----------------------------------------------------------------------------
 489
 490 // GetItem() returns the item being dragged, GetPoint() the mouse coords
 491 #define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 492 #define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 493
 494 // GetItem() returns the itme whose label is being edited
 495 #define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 496 #define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 497
 498 // provide/update information about GetItem() item
 499 #define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 500 #define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 501
 502 // GetItem() is the item being expanded/collapsed, the "ING" versions can use
 503 #define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 504 #define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 505 #define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 506 #define EVT_TREE_ITEM_COLLAPSING(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 507
 508 // GetOldItem() is the item which had the selection previously, GetItem() is
 509 // the item which acquires selection
 510 #define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 511 #define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 512
 513 // GetCode() returns the key code
 514 // NB: this is the only message for which GetItem() is invalid (you may get the
 515 //     item from GetSelection())
 516 #define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
 517
 518 // GetItem() returns the item being deleted, the associated data (if any) will
 519 // be deleted just after the return of this event handler (if any)
 520 #define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
 521
 522 #endif
 523     // _WX_TREECTRL_H_