/* * GroupRenderer.java * * Created on 2006年11月18日, 下午6:53 * * To change this template, choose Tools | Template Manager * and open the template in the editor. */package dyno.swing.designer.properties;import java.awt.Color;import java.awt.Component;import javax.swing.Icon;import javax.swing.ImageIcon;import javax.swing.JTable;import javax.swing.table.DefaultTableCellRenderer;/** * * @author William Chen */public class GroupRenderer extends DefaultTableCellRenderer {    public GroupRenderer() {    }    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {        super.getTableCellRendererComponent(table, value, isSelected, false, row, column);        String text = getText();        if (text != null && text.trim().length() > 0) {            if (text.startsWith("+")) {                setIcon(PLUS_ICON);                setText(text.substring(1));            } else if (text.startsWith("-")) {                setIcon(MINUS_ICON);                setText(text.substring(1));            } else {                setIcon(null);                setText(text);            }        } else {            setIcon(null);            setText(text);        }        if (isSelected) {            setBackground(table.getSelectionBackground());            setForeground(table.getSelectionForeground());        } else {            setBackground(table.getGridColor());            setForeground(Color.black);        }        return this;    }    static final Icon PLUS_ICON = new ImageIcon(GroupRenderer.class.getResource("plus.png"));    static final Icon MINUS_ICON = new ImageIcon(GroupRenderer.class.getResource("minus.png"));}