setupdialog.java

Java程序设计大学教程程序源代码

/*
 * SetUpDialog.java
 * 参见教程275页 示例程序9-7
 * Created on 2005年7月22日, 上午9:08
 * SetUpPanel.java
 *
 * Created on 2005年7月1日, 下午8:35
 */

package jbookch9;

import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.event.*;

public class SetUpDialog  extends JDialog implements ActionListener {
    
    /** SetUpDialog构造函数 */
    public SetUpDialog(JFrame frame) {
        super(frame,"设置",true); //true 代表为有模态对话框
        display.setText("\n当前设置：\n \t英汉测试\t 随机选择单词");
        group.setText("  0  ");
        indexPanel.add(groupLabel);
        indexPanel.add(group);
        submit.addActionListener(this);
        buttonPanel.add(submit);
        initModes();
        initOptions();
        //主面板的BorderLayout布局
        mainPanel.setLayout(new BorderLayout(0,0));
        mainPanel.add( display,"North");
        mainPanel.add(optionPanel,"West");
        mainPanel.add(modePanel,"East");
        mainPanel.add( buttonPanel,"South");
        mainPanel.add( indexPanel,"Center");
        
        getRootPane().setDefaultButton(submit);
        setContentPane(mainPanel);
        setSize(280,240);
        
    }
    
    private void initModes() {
        //设置边框
        modePanel.setBorder(BorderFactory.createTitledBorder("方式"));
        //设置布局
        modePanel.setLayout(new BoxLayout(modePanel, BoxLayout.Y_AXIS));
        //添加单选按钮
        for (int k = 0; k < modes.length; k++) {
            modes[k] = new JRadioButton(modeLabels[k]);
            //监听方式变化事件
            modes[k].addItemListener(new ItemListener() {
                public void itemStateChanged(ItemEvent e) {
                    modChanged();
                }
            });
            modePanel.add(modes[k]);
            choGroup.add(modes[k]);
        }
        //设置缺省选项
        modes[0].setSelected(true);
        modePanel.add(indexPanel);
    }
    
    private void initOptions() {
        //设置边框
        optionPanel.setBorder(BorderFactory.createTitledBorder("选项"));
        //设置布局
        optionPanel.setLayout(new BoxLayout(optionPanel, BoxLayout.Y_AXIS));
        //添加单选按钮组
        for (int k = 0; k < options.length; k++) {
            options[k] = new JRadioButton(optionLabels[k]);
            //监听选项变化事件
            options[k].addItemListener( new ItemListener() {
                public void itemStateChanged(ItemEvent e) {
                    optChanged();
                }
            });
            optionPanel.add(options[k]);
            optGroup.add(options[k]);
        }
        //设置缺省选项
        options[0].setSelected(true);
    }
    
    public void optChanged() {
        for (int k = 0; k < options.length; k++ ){
            if (options[k].isSelected()){
                display.setText("\n  选项：\t" + options[k].getText()+"\n" );
                option=k;
            }
        }
    }
    
    public void modChanged() {
        if (modes[0].isSelected() ){
            display.setText("方式：\n 随机方式在词库中随机挑选50个单词作为一组。\n 随机方式用于测试单词综合掌握情况。");
            mode=0;
        } else{
            display.setText("方式：\n 顺序方式将词库中"+groupCount+"组单词按照字母顺序排列。\n选择顺序方式，需输入组号。组号为0-"+(groupCount-1)+"。");
            mode=1;
        }
    }
    
    public void  setCount(int n){
        groupCount=n;
    }
    
    public int  getIndex(){
        return groupIndex;
    }
    
    public int  getMode(){
        return mode;
    }
    public int  getOption(){
        return option;
    }
    
    public void actionPerformed(ActionEvent e){
        int n=0;
        try {
            n=Integer.parseInt(group.getText().trim());//文本转化为整数
        } catch (NumberFormatException ex) {
            group.setText("  0  " );
            int selection=JOptionPane.showConfirmDialog(this,
                    "组号只能输入整数，请重输！","操作提示",JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE);
        }
        
        if ( modes[0].isSelected() ) {
            this.setVisible(false);
            return;
        }
        if ((n>=0) && (n<groupCount)){
            groupIndex=n;
            this.setVisible(false);
        } else{
            group.setText("  0  " );
            int selection=JOptionPane.showConfirmDialog(this,
                    "组号输入错！","操作提示",JOptionPane.DEFAULT_OPTION, JOptionPane.ERROR_MESSAGE);
            groupIndex=0;
        }
    }
    
    private JPanel mainPanel = new JPanel(),
            indexPanel = new JPanel(),
            modePanel = new JPanel(),
            optionPanel = new JPanel(),
            buttonPanel = new JPanel();
    private int groupCount,groupIndex,option,mode;
    private ButtonGroup optGroup = new ButtonGroup();
    private ButtonGroup choGroup = new ButtonGroup();
    private JRadioButton modes[] = new JRadioButton[2];
    private JRadioButton options[] = new JRadioButton[2];
    private String modeLabels[] =   {"随机选择单词", "顺序选择单词"};
    private String optionLabels[] = {"英汉测试", "汉英测试"};
    private JTextArea display = new JTextArea();
    private JLabel groupLabel = new  JLabel("输入组号");
    private JTextField group = new JTextField();
    private JButton submit = new JButton("确定");
    
}