Field field=(Field)params.getFieldArray().get(col);
int compWidth=c.getPreferredWidth();
int cwidth=compWidth+2*getColMargin(col);
OfflineRenderer renderer=(OfflineRenderer)c.getCellRenderer();
JComponent component=(JComponent)renderer.getComponent(value, node, field, params);
//component.setDoubleBuffered(false);
boolean opaque=component.isOpaque();
component.setOpaque(false);
//component.setForeground(Color.BLACK);
component.setSize(compWidth, params.getRowHeight());