Java Swing单击文本框弹出日历组件2011-04-07 16:12package com.niit.swing2;import java.awt.BorderLayout;import java.awt.Color;import java.awt.Dimension;import java.awt.FlowLayout;import java.awt.Font;import java.awt.Frame;import java.awt.GridLayout;import java.awt.Point;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.MouseAdapter;import java.awt.event.MouseEvent;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import javax.swing.JButton;import javax.swing.JDialog;import javax.swing.JFrame;import javax.swing.JFormattedTextField;import javax.swing.JLabel;import javax.swing.JPanel;import javax.swing.JSpinner;import javax.swing.SpinnerNumberModel;import javax.swing.SwingConstants;import javax.swing.SwingUtilities;import javax.swing.border.LineBorder;import javax.swing.event.ChangeEvent;import javax.swing.event.ChangeListener;public class DateChooser extends JPanel implements ActionListener, ChangeListener {/****/private static final long serialVersionUID = 1L;int startYear = 1980; //默认【最小】显示年份int lastYear = 2050; //默认【最大】显示年份int width = 270; //界面宽度int height = 200; //界面高度Color backGroundColor = Color.gray; //底色//月历表格配色----------------//Color palletTableColor = Color.white; //日历表底色Color todayBackColor = Color.orange; //今天背景色Color weekFontColor = Color.blue; //星期文字色Color dateFontColor = Color.black; //日期文字色Color weekendFontColor = Color.red; //周末文字色//控制条配色------------------//Color controlLineColor = Color.pink; //控制条底色Color controlTextColor = Color.white; //控制条标签文字色Color rbFontColor = Color.white; //RoundBox文字色Color rbBorderColor = Color.red; //RoundBox边框色Color rbButtonColor = Color.pink; //RoundBox按钮色Color rbBtFontColor = Color.red; //RoundBox按钮文字色JDialog dialog; //用于显示日期选择控件JSpinner yearSpin; //调节年份的JSpinnerJSpinner monthSpin; //调节月份JSpinner hourSpin; //调节小时JSpinner minuteSpin;//调节分钟JButton[][] daysButton = new JButton[6][7];//用于显示当前月份每一天所对应的星期的按钮数组JFormattedTextField jFormattedTextField;//显示当前选择日期的有格式输入框Calendar c = getCalendar();Calendar cal = Calendar.getInstance();int currentDay=cal.get(Calendar.DAY_OF_MONTH);DateChooser(JFormattedTextField jftf) {jFormattedTextField = jftf;//设置布局及边框setLayout(new BorderLayout());setBorder(new LineBorder(backGroundColor, 2));setBackground(backGroundColor);//初始化及添加子面板JPanel topYearAndMonth = createYearAndMonthPanal();add(topYearAndMonth, BorderLayout.NORTH);JPanel centerWeekAndDay = createWeekAndDayPanal();add(centerWeekAndDay, BorderLayout.CENTER);}/**** 功能描述:用于创建年份及月份显示面板* @return 用于创建年份及月份显示面板JPanel对象*/private JPanel createYearAndMonthPanal() {int currentYear = c.get(Calendar.YEAR);int currentMonth = c.get(Calendar.MONTH) + 1;int currentHour = c.get(Calendar.HOUR_OF_DAY);int currentMinute = c.get(Calendar.MINUTE);JPanel result = new JPanel();result.setLayout(new FlowLayout());result.setBackground(controlLineColor);yearSpin = new JSpinner(new SpinnerNumberModel(currentYear, startYear, lastYear, 1));yearSpin.setPreferredSize(new Dimension(48, 20));yearSpin.setName("Year");yearSpin.setEditor(new JSpinner.NumberEditor(yearSpin, "####"));yearSpin.addChangeListener(this);result.add(yearSpin);JLabel yearLabel = new JLabel("年");yearLabel.setForeground(controlTextColor);result.add(yearLabel);monthSpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1, 12, 1)); monthSpin.setPreferredSize(new Dimension(35, 20));monthSpin.setName("Month");monthSpin.addChangeListener(this);result.add(monthSpin);JLabel monthLabel = new JLabel("月");monthLabel.setForeground(controlTextColor);result.add(monthLabel);hourSpin = new JSpinner(new SpinnerNumberModel(currentHour, 0, 23, 1)); hourSpin.setPreferredSize(new Dimension(35, 20));hourSpin.setName("Hour");hourSpin.addChangeListener(this);result.add(hourSpin);JLabel hourLabel = new JLabel("时");hourLabel.setForeground(controlTextColor);result.add(hourLabel);minuteSpin = new JSpinner(new SpinnerNumberModel(currentMinute, 0, 59,1));minuteSpin.setPreferredSize(new Dimension(35, 20));minuteSpin.setName("Minute");minuteSpin.addChangeListener(this);result.add(minuteSpin);JLabel minuteLabel = new JLabel("分");minuteLabel.setForeground(controlTextColor);result.add(minuteLabel);return result;}/**** 功能描述:用于创建当前月份中每一天按对应星期排列所在面板* @return*/private JPanel createWeekAndDayPanal() {String colname[] = { "日", "一", "二", "三", "四", "五", "六" };JPanel result = new JPanel();//设置固定字体，以免调用环境改变影响界面美观result.setFont(new Font("宋体", Font.PLAIN, 12));result.setLayout(new GridLayout(7, 7));result.setBackground(Color.white);JLabel cell; //显示星期for (int i = 0; i < 7; i++) {cell = new JLabel(colname[i]);cell.setHorizontalAlignment(JLabel.CENTER);if (i == 0 || i == 6)cell.setForeground(weekendFontColor);elsecell.setForeground(weekFontColor);result.add(cell);}int actionCommandId = 0;for (int i = 0; i < 6; i++)for (int j = 0; j < 7; j++) {JButton numberButton = new JButton();numberButton.setBorder(null);numberButton.setHorizontalAlignment(SwingConstants.CENTER);numberButton.setActionCommand(String.valueOf(actionCommandId));numberButton.addActionListener(this);numberButton.setBackground(palletTableColor);numberButton.setForeground(dateFontColor);if (j == 0 || j == 6)numberButton.setForeground(weekendFontColor);elsenumberButton.setForeground(dateFontColor);daysButton[i][j] = numberButton;numberButton.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) {if (e.getClickCount() == 2) { //鼠标双击再次时closeAndSetDate();}}});result.add(numberButton);actionCommandId++;}return result;}private JDialog createDialog(Frame owner) {JDialog result = new JDialog(owner, "日期时间选择", true);result.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE);result.getContentPane().add(this, BorderLayout.CENTER);result.pack();result.setSize(width, height);return result;}public void showDateChooser(Point position) {Object tmpobj=SwingUtilities.getWindowAncestor(jFormattedTextField);if(tmpobj.getClass().isInstance(new JDialog())||tmpobj.getClass().getSuperclass().isInstance(new JDialog())) {JDialog ownerdialog = (JDialog) SwingUtilities.getWindowAncestor(jFormattedTextField);Frame owner = (Frame) SwingUtilities.getWindowAncestor(ownerdialog);if (dialog == null || dialog.getOwner() != owner) {dialog = createDialog(owner);}dialog.setLocation(getAppropriateLocation(owner, position));}else if(tmpobj.getClass().isInstance(new JFrame())||tmpobj.getClass().getSuperclass().isInstance(new JFrame())) {JFrame ownerFrame = (JFrame) SwingUtilities.getWindowAncestor(jFormattedTextField);if (dialog == null || dialog.getOwner() != ownerFrame) {dialog = createDialog(ownerFrame);}dialog.setLocation(getAppropriateLocation(ownerFrame, position));}flushWeekAndDay();dialog.setVisible(true);}Point getAppropriateLocation(Frame owner, Point position) { Point result = new Point(position);Point p = owner.getLocation();int offsetX = (position.x + width) - (p.x + owner.getWidth());int offsetY = (position.y + height) - (p.y + owner.getHeight());if (offsetX > 0) {result.x -= offsetX;}if (offsetY > 0) {result.y -= offsetY;}return result;}public void closeAndSetDate() {setDate(c.getTime());dialog.dispose();}private Calendar getCalendar() {Calendar result = Calendar.getInstance();result.setTime(getDate());return result;}private int getSelectedYear() {return ((Integer) yearSpin.getValue()).intValue(); }private int getSelectedMonth() {return ((Integer) monthSpin.getValue()).intValue(); }private int getSelectedHour() {return ((Integer) hourSpin.getValue()).intValue();}private int getSelectedMinute() {return ((Integer) minuteSpin.getValue()).intValue();}private void dayColorUpdate(boolean isOldDay) {int day = c.get(Calendar.DAY_OF_MONTH);// System.out.println(day+"-----day-----");c.set(Calendar.DAY_OF_MONTH, currentDay);// System.out.println("当前日期day:"+c.get(Calendar.DATE));int actionCommandId = day - 2 + c.get(Calendar.DAY_OF_WEEK);int i = actionCommandId / 7;int j = actionCommandId % 7;if (isOldDay)daysButton[i][j].setForeground(dateFontColor);elsedaysButton[i][j].setForeground(todayBackColor);}private void flushWeekAndDay() {c.set(Calendar.DAY_OF_MONTH, currentDay);int maxDayNo = c.getActualMaximum(Calendar.DAY_OF_MONTH);int dayNo = 2 - c.get(Calendar.DAY_OF_WEEK);// System.out.println("某月日期值范围："+dayNo+"----"+maxDayNo);for (int i = 0; i < 6; i++) {for (int j = 0; j < 7; j++) {String s = "";if (dayNo >= 1 && dayNo <= maxDayNo)s = String.valueOf(dayNo);daysButton[i][j].setText(s);dayNo++;}}dayColorUpdate(false);}public void stateChanged(ChangeEvent e) {JSpinner source = (JSpinner) e.getSource();if (source.getName().equals("Minute")) {c.set(Calendar.MINUTE, getSelectedMinute());return;}if (source.getName().equals("Hour")) {c.set(Calendar.HOUR_OF_DAY, getSelectedHour());return;}dayColorUpdate(true);if (source.getName().equals("Year")) {c.set(Calendar.YEAR, getSelectedYear());}if (source.getName().equals("Month")) {c.set(Calendar.MONTH, getSelectedMonth() - 1);}flushWeekAndDay();}public void actionPerformed(ActionEvent e) {JButton source = (JButton) e.getSource();if (source.getText().length() == 0)return;dayColorUpdate(true);source.setForeground(todayBackColor);int newDay = Integer.parseInt(source.getText());c.set(Calendar.DAY_OF_MONTH, newDay);}public void setDate(Date date) {jFormattedTextField.setText(getDefaultDateFormat().format(date));}public Date getDate() {try {String dateString = jFormattedTextField.getText();// System.out.println(dateString+"---------");return getDefaultDateFormat().parse(dateString);} catch (ParseException e) {return getNowDate();} catch (Exception ee) {return getNowDate();}}private static Date getNowDate() {return Calendar.getInstance().getTime();private static SimpleDateFormat getDefaultDateFormat() {return new SimpleDateFormat("yyyy-MM-dd HH:mm");}}----------------------------------------------------------MyTest-----------------------------------------package com.niit.swing2;import java.awt.Point;import java.awt.event.MouseEvent;import java.awt.event.MouseListener;import javax.swing.JFormattedTextField;import javax.swing.JFrame;import javax.swing.JLabel;public class MyTest {private JFrame jf;private JFormattedTextField tfDate;private JLabel lb;public static void main(String[] args) {new MyTest().init();public void init(){jf=new JFrame("日期组件");jf.setLayout(null);jf.setBounds(10, 10, 300, 200);jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);lb=new JLabel("选择日期：");lb.setBounds(15, 60, 80, 30);initTfDate();//初始化文本框jf.add(tfDate);jf.add(lb);jf.setVisible(true);}/** initTfDate 初始化JFormattedTextField tfDate;*/public void initTfDate(){tfDate=new JFormattedTextField();tfDate.setBounds(100, 60, 120, 23);tfDate.addMouseListener(new MouseListener(){public void mouseClicked(MouseEvent mouseevent) { //添加文本框单击事件// TODO Auto-generated method stub//System.out.println("------MyTest-----");DateChooser mDateChooser=new DateChooser(tfDate);//设置DateChooser弹出位置Point p = tfDate.getLocationOnScreen();p.y = p.y + 30;mDateChooser.showDateChooser(p);tfDate.requestFocusInWindow();}public void mouseEntered(MouseEvent mouseevent) {// TODO Auto-generated method stub}public void mouseExited(MouseEvent mouseevent) {// TODO Auto-generated method stub}public void mousePressed(MouseEvent mouseevent) {// TODO Auto-generated method stub}public void mouseReleased(MouseEvent mouseevent) {// TODO Auto-generated method stub}}); }}。
