demos/dbbrowse/dbtree.cpp

   1 //----------------------------------------------------------------------------------------
   2 // Name:        DBTree.cpp/.h
   3 // Purpose:     Tree with Table and Views, branches show Field information
   4 // Author:      Mark Johnson
   5 // Modified by:
   6 // Created:     19991129
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Mark Johnson, Berlin Germany
   9 // Licence:     wxWindows license
  10 //----------------------------------------------------------------------------------------
  11 //-- all #ifdefs that the whole Project needs. -------------------------------------------
  12 //----------------------------------------------------------------------------------------
  13 #ifdef __GNUG__
  14 #pragma implementation
  15 #pragma interface
  16 #endif
  17 //----------------------------------------------------------------------------------------
  18 // For compilers that support precompilation, includes "wx/wx.h".
  19 #include "wx/wxprec.h"
  20 //----------------------------------------------------------------------------------------
  21 #ifdef __BORLANDC__
  22 #pragma hdrstop
  23 #endif
  24 //----------------------------------------------------------------------------------------
  25 #ifndef WX_PRECOMP
  26 #include "wx/wx.h"
  27 #endif
  28 //----------------------------------------------------------------------------------------
  29 #ifndef __WXMSW__
  30 #endif
  31 //----------------------------------------------------------------------------------------
  32 //-- all #includes that every .cpp needs             --- 19990807.mj10777 ----------------
  33 //----------------------------------------------------------------------------------------
  34 #include "std.h"    // sorgsam Pflegen !
  35
  36 //----------------------------------------------------------------------------------------
  37 //-- Global functions --------------------------------------------------------------------
  38 //----------------------------------------------------------------------------------------
  39 static inline const wxChar *bool2String(bool b)
  40 {
  41     return b ? _T("") : _T("not ");
  42 }
  43
  44 //----------------------------------------------------------------------------------------
  45 BEGIN_EVENT_TABLE(DBTree, wxTreeCtrl)
  46     EVT_MOTION (DBTree::OnMouseMove)
  47     EVT_TREE_SEL_CHANGED(TREE_CTRL_DB, DBTree::OnSelChanged)
  48     EVT_TREE_ITEM_RIGHT_CLICK(TREE_CTRL_DB,DBTree::OnRightSelect)
  49     EVT_MENU(DATA_SHOW,DBTree::OnDBGrid)
  50     EVT_MENU(DATA_DB,DBTree::OnDBClass)
  51     EVT_MENU(DATA_TABLE,DBTree::OnTableClass)
  52     EVT_MENU(DATA_TABLE_ALL,DBTree::OnTableClassAll)
  53 END_EVENT_TABLE()
  54 //----------------------------------------------------------------------------------------
  55 // DBTree implementation
  56 //----------------------------------------------------------------------------------------
  57 IMPLEMENT_DYNAMIC_CLASS(DBTree, wxTreeCtrl)
  58
  59 //----------------------------------------------------------------------------------------
  60 DBTree::DBTree(wxWindow *parent)  : wxTreeCtrl(parent)
  61 {
  62 }
  63
  64 //----------------------------------------------------------------------------------------
  65 DBTree::DBTree(wxWindow *parent, const wxWindowID id,const wxPoint& pos, const wxSize& size, long style)
  66 : wxTreeCtrl(parent, id, pos, size, style)
  67 {
  68     const int image_size = 16;
  69     // Make an image list containing small icons
  70     p_imageListNormal = new wxImageList(image_size, image_size, TRUE);
  71     // should correspond to TreeIc_xxx enum
  72 #if !defined(__WXMSW__)
  73 #include "bitmaps/logo.xpm"
  74 #include "bitmaps/dsnclose.xpm"
  75 #include "bitmaps/dsnopen.xpm"
  76 #include "bitmaps/tab.xpm"
  77 #include "bitmaps/view.xpm"
  78 #include "bitmaps/col.xpm"
  79 #include "bitmaps/key.xpm"
  80 #include "bitmaps/keyf.xpm"
  81 #include "bitmaps/d_open.xpm"
  82 #include "bitmaps/d_closed.xpm"
  83 #endif
  84     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(aLogo)).ConvertToImage().Rescale(image_size, image_size)));
  85     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(DsnClosed)).ConvertToImage().Rescale(image_size, image_size)));
  86     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(DsnOpen)).ConvertToImage().Rescale(image_size, image_size)));
  87     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(TAB)).ConvertToImage().Rescale(image_size, image_size)));
  88     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(VIEW)).ConvertToImage().Rescale(image_size, image_size)));
  89     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(COL)).ConvertToImage().Rescale(image_size, image_size)));
  90     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(KEY)).ConvertToImage().Rescale(image_size, image_size)));
  91     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(KEYF)).ConvertToImage().Rescale(image_size, image_size)));
  92     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(DocOpen)).ConvertToImage().Rescale(image_size, image_size)));
  93     p_imageListNormal->Add(wxBitmap(wxBitmap(wxICON(DocOpen)).ConvertToImage().Rescale(image_size, image_size)));
  94     SetImageList(p_imageListNormal);
  95     ct_BrowserDB = NULL;
  96     popupMenu1   = NULL;
  97     popupMenu2   = NULL;
  98 }
  99
 100 //----------------------------------------------------------------------------------------
 101 DBTree::~DBTree()
 102 {
 103     delete ct_BrowserDB;
 104
 105     //  delete (pDoc->db_Br+i_Which);
 106     // wxLogMessage("DBTree::~DBTree() - Vor  OnCloseDB()");
 107     (pDoc->db_Br+i_Which)->OnCloseDB(FALSE);
 108     // wxLogMessage("DBTree::~DBTree() - Nach OnCloseDB()");
 109     (pDoc->db_Br+i_Which)->db_BrowserDB = NULL;
 110     (pDoc->db_Br+i_Which)->ct_BrowserDB = NULL;
 111     (pDoc->db_Br+i_Which)->cl_BrowserDB = NULL;
 112
 113     delete p_imageListNormal;
 114     if (popupMenu1)       // If the DSN has no Tables, then no delete should be done !
 115         delete popupMenu1;
 116     if (popupMenu1)       // If the DSN has no Tables, then no delete should be done !
 117         delete popupMenu2;
 118 }
 119
 120 //----------------------------------------------------------------------------------------
 121 #undef TREE_EVENT_HANDLER
 122
 123 //----------------------------------------------------------------------------------------
 124 int DBTree::OnPopulate()
 125 {
 126     wxTreeItemId Root, Folder, Docu, Funkt;
 127     int i,x,y,z=0, TableType;
 128     wxString SQL_TYPE, DB_TYPE;
 129     SetFont(* pDoc->ft_Doc);
 130     //---------------------------------------------------------------------------------------
 131     if ((pDoc->db_Br+i_Which)->Initialize(FALSE))
 132     {
 133         wxStopWatch sw;
 134         wxBeginBusyCursor();
 135         ct_BrowserDB = (pDoc->db_Br+i_Which)->OnGetCatalog(FALSE);
 136         if (ct_BrowserDB)
 137         { // Use the wxDatabase Information
 138             Temp0.Printf(_T("%s - (%s) (%s)"), s_DSN.c_str(),ct_BrowserDB->catalog, ct_BrowserDB->schema);
 139             Root = AddRoot(Temp0,TreeIc_DsnOpen,TreeIc_DsnOpen,new DBTreeData(_T("Root")));
 140             for (x=0;x<ct_BrowserDB->numTables;x++)
 141             {
 142                 wxYield();
 143                 TableType = 0; // TABLE = 1 ; VIEW = 2 ; 0 We are not interested in
 144                 if (!wxStrcmp((ct_BrowserDB->pTableInf+x)->tableType,_T("TABLE")))    // only TABLES
 145                     TableType = 1;
 146                 if (!wxStrcmp((ct_BrowserDB->pTableInf+x)->tableType,_T("VIEW")))     // and  VIEWS
 147                     TableType = 2;
 148                 if (TableType)    // only TABLES or Views
 149                 {
 150                     Temp1.Printf(_T("TN(%s"),(ct_BrowserDB->pTableInf+x)->tableName);
 151                     //----
 152                     (ct_BrowserDB->pTableInf+x)->pColInf = (pDoc->db_Br+i_Which)->OnGetColumns((ct_BrowserDB->pTableInf+x)->tableName,(ct_BrowserDB->pTableInf+x)->numCols,FALSE);
 153                     //----
 154                     if ((ct_BrowserDB->pTableInf+x)->pColInf)
 155                     {
 156                         if (TableType == 1)  // Table
 157                         {
 158                             Temp0.Printf(_("Table-Name(%s) with (%d)Columns ; Remarks(%s)"),  (ct_BrowserDB->pTableInf+x)->tableName,
 159                                 (ct_BrowserDB->pTableInf+x)->numCols,(ct_BrowserDB->pTableInf+x)->tableRemarks);
 160                             Folder = AppendItem(Root,Temp0,TreeIc_TAB,TreeIc_TAB, new DBTreeData(Temp1));
 161                         }
 162                         if (TableType == 2)  // View
 163                         {
 164                             Temp0.Printf(_("View-Name(%s) with (%d)Columns ; Remarks(%s)"),  (ct_BrowserDB->pTableInf+x)->tableName,
 165                                 (ct_BrowserDB->pTableInf+x)->numCols,(ct_BrowserDB->pTableInf+x)->tableRemarks);
 166                             Folder = AppendItem(Root,Temp0,TreeIc_VIEW,TreeIc_VIEW, new DBTreeData(Temp1));
 167                         }
 168                         for (y=0;y<(ct_BrowserDB->pTableInf+x)->numCols;y++)
 169                         {
 170                             Temp1.Printf(_T("FN(%s"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->colName);
 171                             // Here is where we find out if the Column is a Primary / Foreign Key
 172                             if (((ct_BrowserDB->pTableInf+x)->pColInf+y)->PkCol != 0)  // Primary Key
 173                             {
 174                                 Temp2.Printf(_T("(%d) - %s"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->PkCol,((ct_BrowserDB->pTableInf+x)->pColInf+y)->colName);
 175                                 Docu = AppendItem(Folder,Temp2,TreeIc_KEY,TreeIc_KEY,new DBTreeData(Temp1));
 176                                 Temp2 = ((ct_BrowserDB->pTableInf+x)->pColInf+y)->PkTableName;
 177                                 if (Temp2 == _T(""))
 178                                     Temp2 = _("None");
 179                                 Temp2.Printf(_("This Primary Key is used in the following Tables : %s"),Temp2.c_str());
 180                                 Funkt = AppendItem(Docu,Temp2,TreeIc_DocClosed,TreeIc_DocOpen,new DBTreeData(_T("KEY")));
 181                             }
 182                             else
 183                             {
 184                                 if (((ct_BrowserDB->pTableInf+x)->pColInf+y)->FkCol != 0) // Foreign Key
 185                                 {
 186                                     Temp2.Printf(_T("(%d) - %s"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->FkCol,((ct_BrowserDB->pTableInf+x)->pColInf+y)->colName);
 187                                     Docu = AppendItem(Folder,Temp2,TreeIc_KEYF,TreeIc_KEYF,new DBTreeData(Temp1));
 188                                     Temp2.Printf(_("This Foreign Key comes from the following Table : %s"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->FkTableName);
 189                                     Funkt = AppendItem(Docu,Temp2,TreeIc_DocClosed,TreeIc_DocOpen,new DBTreeData(_T("KEYF")));
 190                                 }
 191                                 else
 192                                     Docu = AppendItem(Folder,((ct_BrowserDB->pTableInf+x)->pColInf+y)->colName,TreeIc_COL,TreeIc_COL,new DBTreeData(Temp1));
 193                             }
 194                             SQL_TYPE.Printf(_T("SQL_C_???? (%d)"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->sqlDataType);
 195                             DB_TYPE.Printf(_T("DB_DATA_TYPE_???? (%d)"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->dbDataType);
 196                             for (i=1;i<=(pDoc->db_Br+i_Which)->i_SqlTyp[0];i++)
 197                             {
 198                                 if (((ct_BrowserDB->pTableInf+x)->pColInf+y)->sqlDataType == (pDoc->db_Br+i_Which)->i_SqlTyp[i])
 199                                 {
 200                                     SQL_TYPE.Printf(_T("%s(%d) ; "),(pDoc->db_Br+i_Which)->s_SqlTyp[i].c_str(),(pDoc->db_Br+i_Which)->i_SqlTyp[i]);
 201                                 }
 202                             } // for (i=1;i<=i_SqlTyp[0];i++)
 203                             wxYield();
 204                             for (i=1;i<=(pDoc->db_Br+i_Which)->i_dbTyp[0];i++)
 205                             {
 206                                 if (((ct_BrowserDB->pTableInf+x)->pColInf+y)->dbDataType == (pDoc->db_Br+i_Which)->i_dbTyp[i])
 207                                 {
 208                                     DB_TYPE.Printf(_T("%s(%d)"),(pDoc->db_Br+i_Which)->s_dbTyp[i].c_str(),(pDoc->db_Br+i_Which)->i_dbTyp[i]);
 209                                 }
 210                             } // for (i=1;i<=i_dbTyp[0];i++)
 211                             wxYield();
 212                             SQL_TYPE += DB_TYPE;
 213                             Funkt = AppendItem(Docu,SQL_TYPE,TreeIc_DocClosed,TreeIc_DocOpen,new DBTreeData(SQL_TYPE));
 214                             SQL_TYPE.Printf(_T("%10s %d,%d"),((ct_BrowserDB->pTableInf+x)->pColInf+y)->typeName,
 215                                 ((ct_BrowserDB->pTableInf+x)->pColInf+y)->columnSize,((ct_BrowserDB->pTableInf+x)->pColInf+y)->decimalDigits);
 216                             Funkt = AppendItem(Docu,SQL_TYPE,TreeIc_DocClosed,TreeIc_DocOpen,new DBTreeData(SQL_TYPE));
 217                         }  // for (y=0;y<(ct_BrowserDB->pTableInf+x)->numCols;y++)
 218                     }   // if ((ct_BrowserDB->pTableInf+x)->pColInf)
 219                     else
 220                         Folder = AppendItem(Root,Temp0,TreeIc_FolderClosed,TreeIc_FolderOpen, new DBTreeData(Temp1));
 221                     z++;
 222 //                    if (z % 10 == 0)
 223                     {
 224                         Temp0.Printf(_("-I-> DBTree::OnPopulate(%s) - Table %6d (from %d) has been read."),(ct_BrowserDB->pTableInf+x)->tableName,z,ct_BrowserDB->numTables);
 225                         pDoc->p_MainFrame->SetStatusText(Temp0, 0);
 226                     }
 227                     wxYield();
 228                 }    // if ((ct_BrowserDB->pTableInf+x)->tableType == "TABLE" or VIEW)
 229                 // else
 230                 //  wxLogMessage(_("\n-I-> if ! TABLE or VIEW  >%s<"),(ct_BrowserDB->pTableInf+x)->tableType);
 231             }     // for (x=0;x<ct_BrowserDB->numTables;x++)
 232         }      // if (ct_BrowserDB)
 233         else
 234             wxLogMessage(_("\n-E-> DBTree::OnPopulate() : Invalid Catalog Pointer : Failed"));
 235         wxEndBusyCursor();
 236         Temp0.Printf(_("-I-> DBTree::OnPopulate() - %6d Tables have been read. - Time needed : %ld ms"),z,sw.Time());
 237         wxLogMessage(Temp0);
 238         pDoc->p_MainFrame->SetStatusText(Temp0, 0);
 239     }       // if((pDoc->db_Br+i_Which)->Initialize(FALSE))
 240     else
 241     {
 242         wxLogMessage(_("\n-E-> DBTree::OnPopulate() : A valid Pointer could not be created : Failed"));
 243         return 0;
 244     }
 245     //---------------------------------------------------------------------------------------
 246     Expand(Root);
 247     //---------------------------------------------------------------------------------------
 248     popupMenu1 = NULL;
 249     popupMenu1 = new wxMenu(_T(""));
 250     popupMenu1->Append(DATA_DB, _("Make wxDB.cpp/h "));
 251     popupMenu1->AppendSeparator();
 252     popupMenu1->Append(DATA_TABLE_ALL, _("Make all wxTable.cpp/h classes"));
 253     popupMenu2 = NULL;
 254     popupMenu2 = new wxMenu(_T(""));
 255     popupMenu2->Append(DATA_SHOW, _("Show Data"));
 256     popupMenu2->AppendSeparator();
 257     popupMenu2->Append(DATA_TABLE, _("Make wxTable.cpp/h "));
 258     //---------------------------------------------------------------------------------------
 259     return 0;
 260 }  // DBTree::OnPopulate()
 261
 262 //----------------------------------------------------------------------------------------
 263 void DBTree::OnSelChanged(wxTreeEvent& WXUNUSED(event))
 264 {
 265     int i;
 266     Temp0.Empty();
 267     pDoc->p_MainFrame->SetStatusText(Temp0,0);
 268     // Get the Information that we need
 269     wxTreeItemId itemId = GetSelection();
 270     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 271     if ( item != NULL )
 272     {
 273         int Treffer = 0;
 274         Temp1.Printf(_T("%s"),item->m_desc.c_str());
 275         //-------------------------------------------------------------------------------------
 276         if (Temp1.Contains(_T("ODBC-")))
 277         {
 278             Temp1 = Temp1.Mid(5,wxSTRING_MAXLEN);
 279             for (i=0;i<pDoc->i_DSN;i++)
 280             {
 281                 if (Temp1 == (pDoc->p_DSN+i)->Dsn)
 282                 {
 283                     // pDoc->OnChosenDSN(i);
 284                 }
 285             }
 286             Treffer++;
 287         }
 288         //--------------------------------------------------------------------------------------
 289         if (Treffer == 0)
 290         {
 291             //-------------------------------------------------------------------------------------
 292             /*
 293             Temp0.Printf(_("Item '%s': %sselected, %sexpanded, %sbold,"
 294             "%u children (%u immediately under this item)."),
 295             item->m_desc.c_str(),
 296             bool2String(IsSelected(itemId)),
 297             bool2String(IsExpanded(itemId)),
 298             bool2String(IsBold(itemId)),
 299             GetChildrenCount(itemId),
 300             GetChildrenCount(itemId));
 301             LogBuf.Printf("-I-> DBTree::OnSelChanged - %s",Temp0.c_str());
 302             wxLogMessage( "%s", LogBuf.c_str() );
 303             */
 304             //-------------------------------------------------------------------------------------
 305         }
 306     }
 307 }
 308
 309 //----------------------------------------------------------------------------------------
 310 void DBTree::OnRightSelect(wxTreeEvent& WXUNUSED(event))
 311 {
 312     int i;
 313     Temp0.Empty();
 314     // Get the Information that we need
 315     wxTreeItemId itemId = GetSelection();
 316     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 317     if ( item != NULL )
 318     {
 319         int Treffer = 0;
 320         Temp1.Printf(_T("%s"),item->m_desc.c_str());
 321         //--------------------------------------------------------------------------------------
 322         if (!wxStrcmp(_T("Root"),Temp1))
 323         {
 324             PopupMenu(popupMenu1,TreePos.x,TreePos.y);
 325             Treffer++;
 326         }
 327         for (i=0;i<ct_BrowserDB->numTables;i++)
 328         {
 329             Temp2.Printf(_T("TN(%s"),(ct_BrowserDB->pTableInf+i)->tableName);
 330             if (!wxStrcmp(Temp2,Temp1))
 331             {
 332                 PopupMenu(popupMenu2,TreePos.x,TreePos.y);
 333                 Treffer++;
 334             }
 335         }
 336         //--------------------------------------------------------------------------------------
 337         if (Treffer == 0)
 338         {
 339             //-------------------------------------------------------------------------------------
 340             /*
 341             Temp0.Printf(_("Item '%s': %sselected, %sexpanded, %sbold,"
 342             "%u children (%u immediately under this item)."),
 343             item->m_desc.c_str(),
 344             bool2String(IsSelected(itemId)),
 345             bool2String(IsExpanded(itemId)),
 346             bool2String(IsBold(itemId)),
 347             GetChildrenCount(itemId),
 348             GetChildrenCount(itemId));
 349             LogBuf.Printf("-I-> DBTree::OnSelChanged - %s",Temp0.c_str());
 350             wxLogMessage( "%s", LogBuf.c_str() );
 351             */
 352             //-------------------------------------------------------------------------------------
 353         }
 354     }
 355 }
 356
 357 //----------------------------------------------------------------------------------------
 358 void DBTree::OnDBGrid(wxCommandEvent& WXUNUSED(event))
 359 {
 360     int i;
 361     // Get the Information that we need
 362     wxTreeItemId itemId = GetSelection();
 363     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 364     if ( item != NULL )
 365     {
 366         Temp1.Printf(_T("%s"),item->m_desc.c_str());
 367         for (i=0;i<ct_BrowserDB->numTables;i++)
 368         {
 369             Temp2.Printf(_T("TN(%s"),(ct_BrowserDB->pTableInf+i)->tableName);
 370             if (!wxStrcmp(Temp2,Temp1))
 371             {
 372                 // Temp0.Printf("(%d) Here is where a GridCtrl for >%s< will be called! ",i,(ct_BrowserDB->pTableInf+i)->tableName);
 373                 pDoc->OnChosenTbl(1,(ct_BrowserDB->pTableInf+i)->tableName);
 374                 // wxMessageBox(Temp0);
 375             }
 376         }
 377     }
 378 }
 379
 380 //----------------------------------------------------------------------------------------
 381 void DBTree::OnDBClass(wxCommandEvent& WXUNUSED(event))
 382 {
 383     // int i;
 384     // Get the Information that we need
 385     wxTreeItemId itemId = GetSelection();
 386     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 387     if ( item != NULL )
 388     {
 389         Temp0.Printf(_("Here is where a wxDB Class for >%s< will be made! "),s_DSN.c_str());
 390         wxMessageBox(Temp0);
 391     }
 392 }
 393
 394 //----------------------------------------------------------------------------------------
 395 void DBTree::OnTableClass(wxCommandEvent& WXUNUSED(event))
 396 {
 397     int i;
 398     // Get the Information that we need
 399     wxTreeItemId itemId = GetSelection();
 400     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 401     if ( item != NULL )
 402     {
 403         Temp1.Printf(_T("%s"),item->m_desc.c_str());
 404         for (i=0;i<ct_BrowserDB->numTables;i++)
 405         {
 406             Temp2.Printf(_T("TN(%s"),(ct_BrowserDB->pTableInf+i)->tableName);
 407             if (!wxStrcmp(Temp2,Temp1))
 408             {
 409                 Temp0.Printf(_("(%d) Here is where a wxTable Class for >%s< will be made! "),i,(ct_BrowserDB->pTableInf+i)->tableName);
 410                 wxMessageBox(Temp0);
 411             }
 412         }
 413     }
 414 }
 415
 416 //----------------------------------------------------------------------------------------
 417 void DBTree::OnTableClassAll(wxCommandEvent& WXUNUSED(event))
 418 {
 419     // int i;
 420     // Get the Information that we need
 421     wxTreeItemId itemId = GetSelection();
 422     DBTreeData *item = (DBTreeData *)GetItemData(itemId);
 423     if ( item != NULL )
 424     {
 425         Temp0.Printf(_("Here is where all wxTable Classes in >%s< will be made! "),s_DSN.c_str());
 426         wxMessageBox(Temp0);
 427     }
 428 }
 429
 430 //----------------------------------------------------------------------------------------
 431 void DBTree::OnMouseMove(wxMouseEvent &event)
 432 {
 433     TreePos = event.GetPosition();
 434 }
 435 //----------------------------------------------------------------------------------------