jdatepicker.java

OpenSwing开源项目

package com.sunking.swing;

import java.io.*;
import java.text.*;
import java.util.*;

import java.awt.*;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.*;
import javax.swing.plaf.metal.*;

import com.sun.java.swing.plaf.motif.*;
import com.sun.java.swing.plaf.windows.*;
import com.sunking.swing.refer.*;
import com.sunking.swing.refer.DatePopup;
import com.sunking.swing.refer.JDateDocument;

/**
 * <p>Title:OpenSwing </p>
 * <p>Description: JDatePicker 日期选择框<BR>
 * 履历:<BR>
 * 2004/03/26   根据网友caiyj的建议引入了recoon写的关于JDateDocument的校验方法<BR>
 * 2004/04/02   根据网友caiyj提交的BUG,修正了做为TableCellEditor时日期选择面板弹不出问题<BR>
 * 2005/04/17   修正了弹出面板不能显示当前输入框中的日期<BR>
 * </p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: </p>
 * @author <a href="mailto:[e-mail]"'>Sunking</a>
 * @version 1.0
 */
public class JDatePicker extends JComboBox implements Serializable {
    /**
     * 年月日格式
     */
    public static final SimpleDateFormat dateFormat_CN
            = new SimpleDateFormat("yyyy/MM/dd");
    public static final SimpleDateFormat dateFormat_CN1
            = new SimpleDateFormat("yyyy-MM-dd");
    public static final SimpleDateFormat datetimeFormat_CN
            = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
    public static final SimpleDateFormat datetimeFormat_CN1
            = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    public static final int STYLE_CN_DATE = 0;
    public static final int STYLE_CN_DATE1 = 1;
    public static final int STYLE_CN_DATETIME = 2;
    public static final int STYLE_CN_DATETIME1 = 3;
    /**
     * 日期格式类型
     */
    private int formatStyle = STYLE_CN_DATE;
    /**
     * 当前设置日期格式
     */
    private SimpleDateFormat dateFormat = datetimeFormat_CN;

    /**
     * 只有一个值的ComboBoxModel
     */
    private SingleObjectComboBoxModel model = new SingleObjectComboBoxModel();
    JDateDocument dateDocument = null;
    /**
     * 构造式
     */
    public JDatePicker() {
        this(STYLE_CN_DATE);
    }

    public JDatePicker(int formatStyle) {
        this(formatStyle, getCurrentDate(
                formatStyle == STYLE_CN_DATE ? dateFormat_CN :
                (formatStyle == STYLE_CN_DATE1 ? dateFormat_CN1 :
                 (formatStyle == STYLE_CN_DATETIME ? datetimeFormat_CN :
                  datetimeFormat_CN1))));
    }

    public JDatePicker(int formatStyle, Object initialDatetime) {
        this.setStyle(formatStyle);
        initThis(initialDatetime);
    }

    public JDatePicker(int formatStyle, Date initialDatetime) {
        this.setStyle(formatStyle);
        initThis(initialDatetime);
    }

    protected void initThis(Object initialDatetime) {
        this.setModel(model);
        this.setSelectedItem(initialDatetime == null?
                             new Date():initialDatetime);
        this.setEditable(true);
        JTextField textField = ((JTextField) getEditor().getEditorComponent());
        textField.setHorizontalAlignment(SwingConstants.CENTER);
        dateDocument = new JDateDocument(textField,this.dateFormat);
        textField.setDocument(dateDocument);
    }

    /**
     * 取得当前系统日时
     * @param dateFormat SimpleDateFormat
     * @return String
     */
    public final static String getCurrentDate(SimpleDateFormat smFormat) {
        return smFormat.format(new Date());
    }

    /**
     * 设置日期格式
     *     STYLE_CN_DATE
     *     STYLE_CN_DATE1
     *     STYLE_CN_DATETIME
     *     STYLE_CN_DATETIME1
     * @param formatStyle int
     */
    public void setStyle(int formatStyle) {
        if (formatStyle != STYLE_CN_DATE
            && formatStyle != STYLE_CN_DATE1
            && formatStyle != STYLE_CN_DATETIME
            && formatStyle != STYLE_CN_DATETIME1) {
            throw new UnsupportedOperationException(
                    "invalid formatStyle parameter!");
        }
        this.formatStyle = formatStyle;
        if (formatStyle == STYLE_CN_DATE) {
            dateFormat = dateFormat_CN;
        } else if (formatStyle == STYLE_CN_DATE1) {
            dateFormat = dateFormat_CN1;
        } else if (formatStyle == STYLE_CN_DATETIME) {
            dateFormat = datetimeFormat_CN;
        } else if (formatStyle == STYLE_CN_DATETIME1) {
            dateFormat = datetimeFormat_CN1;
        }
        model.setDateFormat(dateFormat);
        if(dateDocument != null){
            dateDocument.setDateFormat(dateFormat);
        }
    }

    /**
     * 取得日期格式
     *     STYLE_CN_DATE
     *     STYLE_CN_DATE1
     *     STYLE_CN_DATETIME
     *     STYLE_CN_DATETIME1
     * @return int
     */
    public int getStyle() {
        return formatStyle;
    }

    /**
     * 取得当前选择的日期
     * @return Date
     */
    public Date getSelectedDate() throws ParseException {
        return dateFormat.parse(getSelectedItem().toString());
    }

    /**
     * 设置当前选择的日期
     * @return Date
     */
    public void setSelectedDate(Date date) throws ParseException {
        this.setSelectedItem(dateFormat.format(date));
    }
    public void setSelectedItem(Object anObject) {
        model.setSelectedItem(anObject);
        super.setSelectedItem(anObject);
    }

    /**
     * 更新UI
     */
    public void updateUI() {
        ComboBoxUI cui = (ComboBoxUI) UIManager.getUI(this);
        if (cui instanceof MetalComboBoxUI) {
            cui = new MetalDateComboBoxUI();
        } else if (cui instanceof MotifComboBoxUI) {
            cui = new MotifDateComboBoxUI();
        } else {
            cui = new WindowsDateComboBoxUI();
        }
        setUI(cui);
    }

    // UI Inner classes -- one for each supported Look and Feel
    /**
     * <p>Title: OpenSwing</p>
     * <p>Description: MetalDateComboBoxUI</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    class MetalDateComboBoxUI extends MetalComboBoxUI {
        protected ComboPopup createPopup() {
            return new DatePopup(comboBox);
        }
    }


    /**
     *
     * <p>Title: OpenSwing</p>
     * <p>Description: WindowsDateComboBoxUI</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    class WindowsDateComboBoxUI extends WindowsComboBoxUI {
        protected ComboPopup createPopup() {
            return new DatePopup(comboBox);
        }
    }


    /**
     *
     * <p>Title: OpenSwing</p>
     * <p>Description: MotifDateComboBoxUI</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]">SunKing</a>
     * @version 1.0
     */
    class MotifDateComboBoxUI extends MotifComboBoxUI {
        protected ComboPopup createPopup() {
            return new DatePopup(comboBox);
        }
    }



    /**
     * 测试JDatePicker
     */
    public static void main(String args[]) {
        try {
//            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
//            UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
//            UIManager.setLookAndFeel("com.sun.java.swing.plaf.motif.MotifLookAndFeel");
            Font font = new Font("SimSun", Font.PLAIN, 12);
            java.util.Enumeration keys = UIManager.getLookAndFeelDefaults().
                                         keys();
            while (keys.hasMoreElements()) {
                Object key = keys.nextElement();
                if (UIManager.get(key) instanceof Font) {
                    UIManager.put(key, font);
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }

        JFrame f = new JFrame("JDatePicker Demo");
        JPanel c = new JPanel();
        c.add(new JLabel("From:"));
        JDatePicker datePickerFrom = new JDatePicker(JDatePicker.STYLE_CN_DATETIME);
        c.add(datePickerFrom);
        c.add(new JLabel("To:"));
        JDatePicker datePickerTo = new JDatePicker(JDatePicker.STYLE_CN_DATE);
        datePickerTo.setEditable(false);
        c.add(datePickerTo);
        f.getContentPane().add(c, BorderLayout.NORTH);

        f.getContentPane().add(new JDatePicker(), BorderLayout.SOUTH);

        final JTable table = new JTable(20, 10);
        JComboBox editor = new JDatePicker();
        editor.setBorder(null);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.setDefaultEditor(Object.class, new DefaultCellEditor(editor));
        JScrollPane sp = new JScrollPane(table);
        f.getContentPane().add(sp, BorderLayout.CENTER);

        f.setSize(600, 400);
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        f.setLocation((screenSize.width - f.getWidth()) / 2,
                      (screenSize.height - f.getHeight()) / 2);
//        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.show();
    }
}