jdatepicker.java

java+sql 图书管理系统

package MyLibraryok.borrow.ziliao;

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

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

/**
 * <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{
    /**
     * 日期格式类型
     */
    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 = null;

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

    public JDatePicker(int formatStyle) throws UnsupportedOperationException{
        this(formatStyle, new Date());
    }

    public JDatePicker(int formatStyle, Date initialDatetime) throws
        UnsupportedOperationException{

        this.setStyle(formatStyle);
        //设置可编辑
        this.setEditable(true);
        //设置编辑器属性(只能输入正确日期)
        JTextField textField = ((JTextField)getEditor().getEditorComponent());
        textField.setHorizontalAlignment(SwingConstants.CENTER);
        dateDocument = new JDateDocument(textField, this.dateFormat);
        textField.setDocument(dateDocument);
        //设置Model为单值Model
        this.setModel(model);
        //设置当前选择日期
        this.setSelectedItem(initialDatetime == null ?
                             new Date() : initialDatetime);
    }

    /**
     * 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) throws UnsupportedOperationException{
        this.formatStyle = formatStyle;
        dateFormat = getDateFormat(formatStyle);
        model.setDateFormat(dateFormat);
        if(dateDocument != null){
            dateDocument.setDateFormat(dateFormat);
        }
    }

    /**
     * 取得指定类型的日期格式
     * @param formatStyle int
     * @return SimpleDateFormat
     * @throws UnsupportedOperationException
     */
    private static SimpleDateFormat getDateFormat(int formatStyle) throws
        UnsupportedOperationException{
        switch(formatStyle){
            case STYLE_CN_DATE:
                return new SimpleDateFormat("yyyy-MM-dd");
            case STYLE_CN_DATE1:
                return new SimpleDateFormat("yyyy-MM-dd");
            case STYLE_CN_DATETIME:
                return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            case STYLE_CN_DATETIME1:
                return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            default:
                throw new UnsupportedOperationException(
                    "invalid formatStyle parameter!");
        }
    }

    /**
     * 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);
    }

    /**
     * <p>Title: JDatePicker</p>
     * <p>Description: DatePopup 选择框弹出的日期选择面板</p>
     * <p>Copyright: Copyright (c) 2004</p>
     * <p>Company: </p>
     * @author <a href="mailto:[e-mail]"'>Sunking</a>
     * @version 1.0
     * 组合框的弹出部分的 UI
     */
    /////////////////////////////////////////////////////////////////////////////
    class DatePopup extends BasicComboPopup implements ChangeListener{
        JCalendarPanel calendarPanel = null;
        public DatePopup(JComboBox box){
            super(box);
            setLayout(new BorderLayout());
            calendarPanel = new JCalendarPanel();
            calendarPanel.addDateChangeListener(this);
            add(calendarPanel, BorderLayout.CENTER);
            setBorder(BorderFactory.createEmptyBorder());
        }

        /**
         * 显示弹出面板++++++++++++++++++++++++++++++++++++++++++++++++++++
         */
//        protected void firePropertyChange(String propertyName,
//                                          Object oldValue,
//                                          Object newValue){
//            if(propertyName.equals("visible")){
//                if(oldValue.equals(Boolean.FALSE)
//                   && newValue.equals(Boolean.TRUE)){
//                        //SHOW
//                    try{
//                        String strDate = comboBox.getSelectedItem().toString();
//                        Date selectionDate = dateFormat.parse(strDate);
//                        calendarPanel.setSelectedDate(selectionDate);
//                    } catch(Exception ex){
//                        ex.printStackTrace();
//                    }
//                } else if(oldValue.equals(Boolean.TRUE)
//                          && newValue.equals(Boolean.FALSE)){ //HIDE
//                }
//            }
//            super.firePropertyChange(propertyName, oldValue, newValue);
//        }

        public void stateChanged(ChangeEvent e){
            //当日历状态改变时
            Date selectedDate = (Date)e.getSource();
            String strDate = dateFormat.format(selectedDate);
            if(comboBox.isEditable() && comboBox.getEditor() != null){
                comboBox.configureEditor(comboBox.getEditor(), strDate);
            }
            comboBox.setSelectedItem(strDate);
            comboBox.setPopupVisible(false);
        }
    }

    /**
     * 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 界面设定
    /**
     * <p>Title: OpenSwing</p>
     * @version 1.0
     */
    class MetalDateComboBoxUI extends MetalComboBoxUI{
        protected ComboPopup createPopup(){
            return new DatePopup(comboBox);
        }
    }

    /**
     *
     */
    ///////////////////////////////////////////////////////////////////////////
    class WindowsDateComboBoxUI extends WindowsComboBoxUI{
        protected ComboPopup createPopup(){
            return new DatePopup(comboBox);
        }
    }

    /**
     *
     * @version 1.0
     */
    class MotifDateComboBoxUI extends MotifComboBoxUI{
        protected ComboPopup createPopup(){
            return new DatePopup(comboBox);
        }
    }
}