mxCellRenderer.registerShape(mxConstants.SHAPE_IMAGE,mxImageShape);mxCellRenderer.registerShape(mxConstants.SHAPE_LABEL,mxLabel);mxCellRenderer.prototype.initializeShape=function(a){a.shape.dialect=a.view.graph.dialect;this.configureShape(a);a.shape.init(a.view.getDrawPane())};