cardactionpanel.java

java绘图 java awt 经典绘图的例子,对于初学awt模块的人非常有帮助.

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package cardmanager;

import java.awt.GridLayout;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JRadioButton;

/**
 *
 * @author zhaolin
 */
public class CardActionPanel extends JPanel{
    private JRadioButton jrbNewCard;
    private JRadioButton jrbViewCard;
    
    public CardActionPanel(){
        initComponent();
    }
    private void initComponent(){
        jrbNewCard = new JRadioButton("添加新名片");
        jrbViewCard = new JRadioButton("查看已有名片");
        jrbNewCard.setSelected(true);
        jrbNewCard.addItemListener(new ItemListener(){

            public void itemStateChanged(ItemEvent e) {
                if(jrbNewCard.isSelected()){
                    CardManagerModel.getInstance().setCurrentCard(new Card());
                    CardManagerModel.getInstance().setStatus(CardManagerModel.NEW_CARDS);
                    ((CardManagerFrame)getTopLevelAncestor()).fireStateChanged();
                }
            }
            
        });
        
        jrbViewCard.addItemListener(new ItemListener(){

            public void itemStateChanged(ItemEvent e) {
                if(jrbViewCard.isSelected()){
                    CardManagerModel.getInstance().setStatus(CardManagerModel.VIEW_CARDS);
                    ((CardManagerFrame)getTopLevelAncestor()).fireStateChanged();
                }
            }
            
        });
        ButtonGroup bg = new ButtonGroup();
        bg.add(jrbNewCard);
        bg.add(jrbViewCard);
        this.setBorder(BorderFactory.createTitledBorder("选择动作"));
        this.setLayout(new GridLayout(2,0));
        this.add(jrbViewCard);
        this.add(jrbNewCard);
    }
    
    public static void main(String[] args) {
        JFrame f = new JFrame();
        f.setContentPane(new CardActionPanel());
        f.pack();
        f.setVisible(true);
    }

}