add: if (isValid(vShowVirtualCells)) { this.setShowVirtualCells(vShowVirtualCells); };  
context: function QxGridLayout(vRows, vCols){  QxLayout.call(this);      this._rowHeights = [];  this._colWidths = [];    this._computedRowTypes = [];  this._computedColTypes = [];    this._computedRowHeights = [];  this._computedColWidths = [];    this._virtualCells = [];    this.addRowsFromString(vRows);  this.addColsFromString(vCols);};
meta: 1005	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/1005/d355db6e8b4286805bb985212860d78fc55ee901/QxGridLayout.js/buggy/qooxdoo/source/script/widgets/QxGridLayout.js