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Java制作的日期选择控件

2007-12-14 08:56 323 查看

Java制作的日期选择控件，经测试没有问题，主要包括以下类：

主类：CDateComponent

           提供二个方法：

            getSelectedDateByString()：以字符串的形式返回选择的日期

            getSelectedDate()：以java.util.Date的形式返回选择的日期

内部类：DateComponent，日期选择窗口

               YearAndMonthPanel，选择年和月份面板

               WeekPanel，星期显示面板

               DayPanel，日选择面板

               Handler，处理鼠标点击事件，显示日期选择窗口

运行效果如下：

程序代码如下：

import javax.swing.*;

import java.util.Date;

import java.util.Calendar;

import java.text.DateFormat;

import java.awt.event.*;

import java.awt.*;

/** *//**

* Created by IntelliJ IDEA.

* User: cxwu

* Date: 2007-12-13

* Time: 21:50:20

* To change this template use File | Settings | File Templates.

public class CDateComponent extends JPanel...{

private JTextField txtShow;

private boolean isShow = false; //do the DataComponent display?

private JComboBox cbxYear;

private JComboBox cbxMonth;

private DayPanel dp;

private DateComponent dc;//DateComponent view for user selecting date

public CDateComponent()...{

4000
txtShow = new JTextField(15);

Icon icon = new ImageIcon("src/images/calendar.gif");

JLabel lblIcon = new JLabel(icon);

add(txtShow);

add(lblIcon);

lblIcon.addMouseListener(new Handler());

setBorder(BorderFactory.createRaisedBevelBorder());

}

//get the user selected date by java.lang.String

public String getSelectedDateByString()...{

return txtShow.getText().trim();

}

//get the user selected date by java.util.Date

public Date getSelectedDate()...{

DateFormat df = DateFormat.getDateInstance();

Date date = new Date();

try...{

date = df.parse(getSelectedDateByString());

}catch(Exception e)...{

System.out.println("日期的格式不对！");

}

return date;

}

//handler mouse event on txtShow,to show the DateComponent view on screen

class Handler extends MouseAdapter...{

public void mousePressed(MouseEvent e) ...{

if(!isShow)...{

isShow = true;

Point pt = e.getPoint();

SwingUtilities.convertPointToScreen(pt,(JLabel)e.getSource());

Dimension screen = getToolkit().getScreenSize();

dc = new DateComponent();

//decided the position of the DateComponent view

int x = pt.x + 5;

int y = pt.y + 5;

int w = 360;

int h = 230;

if(screen.getWidth() < (x + w) && screen.getHeight() < (y + h))...{

x = x - 360;

y = y - 230;

}else if(screen.getWidth() < (x + w))...{

x = x - 360;

}else if(screen.getHeight() < (y + h))...{

y = y - 230;

}

dc.setBounds(x,y,w,h);

dc.setVisible(true);

}

//supply the Year and the Month list for the user selecting

class YearAndMonthPanel extends JPanel...{

JButton btnLeftYear;

JButton btnRightYear;

JButton btnLeftMonth;

JButton btnRightMonth;

public YearAndMonthPanel()...{

setLayout(new FlowLayout(0,4,0));

btnLeftYear = new JButton("<<");

btnRightYear = new JButton(">>");

btnLeftMonth = new JButton("<<");

btnRightMonth = new JButton(">>");

cbxYear = new JComboBox();

cbxYear.setPreferredSize(new Dimension(64,27));

cbxMonth = new JComboBox();

cbxMonth.setPreferredSize(new Dimension(64,27));

addYearAndMonth();

add(btnLeftYear);

add(cbxYear);

add(btnRightYear);

add(btnLeftMonth);

add(cbxMonth);

add(btnRightMonth);

btnLeftYear.addActionListener(new ActionListener() ...{

public void actionPerformed(ActionEvent e) ...{

int index = cbxYear.getSelectedIndex();

if(index == 0)...{

return;

}

cbxYear.setSelectedIndex(index - 1);

updateDayShow();

}

});

btnRightYear.addActionListener(new ActionListener() ...{

public void actionPerformed(ActionEvent e) ...{

int index = cbxYear.getSelectedIndex();

if(index == cbxYear.getItemCount() - 1)...{

return;

}

cbxYear.setSelectedIndex(index + 1);

updateDayShow();

}

});

btnLeftMonth.addActionListener(new ActionListener() ...{

public void actionPerformed(ActionEvent e) ...{

int index = cbxMonth.getSelectedIndex();

if(index == 0)...{

return;

}

cbxMonth.setSelectedIndex(index - 1);

updateDayShow();

}

});

btnRightMonth.addActionListener(new ActionListener() ...{

public void actionPerformed(ActionEvent e) ...{

int index = cbxMonth.getSelectedIndex();

if(index == 11)...{

return;

}

cbxMonth.setSelectedIndex(index + 1);

updateDayShow();

}

});

cbxYear.addItemListener(new ItemListener() ...{

public void itemStateChanged(ItemEvent e) ...{

updateDayShow();

}

});

cbxMonth.addItemListener(new ItemListener() ...{

public void itemStateChanged(ItemEvent e) ...{

updateDayShow();

}

});

}

//update the DayPanel according to the selected Year and Month

private void updateDayShow()...{

Calendar currentDate = Calendar.getInstance();

currentDate.set(Integer.parseInt((String)cbxYear.getSelectedItem()),

Integer.parseInt((String)cbxMonth.getSelectedItem()) - 1,

currentDate.get(Calendar.DAY_OF_MONTH));

dp.updateShow(currentDate);

}

private void addYearAndMonth()...{

for (int i = 1900; i < 2045; i++) ...{

cbxYear.addItem(String.valueOf(i));

}

for (int i = 1; i < 13; i++) ...{

cbxMonth.addItem(String.valueOf(i));

}

Calendar now = Calendar.getInstance();

//selected the current data defaultly

cbxYear.setSelectedItem(String.valueOf(now.get(Calendar.YEAR)));

cbxMonth.setSelectedItem(String.valueOf(now.get(Calendar.MONTH) + 1));

}

//display week information

class WeekPanel extends JPanel...{

public WeekPanel()...{

JLabel lblSun,lblMon,lblTues,lblWed,lblThur,lblFri,lblSat;

lblSun = new JLabel("Sun",SwingConstants.CENTER);

lblMon = new JLabel("Mon",SwingConstants.CENTER);

lblTues = new JLabel("Tues",SwingConstants.CENTER);

lblWed = new JLabel("Web",SwingConstants.CENTER);

lblThur = new JLabel("Thur",SwingConstants.CENTER);

lblFri = new JLabel("Fri",SwingConstants.CENTER);

lblSat = new JLabel("Sat",SwingConstants.CENTER);

lblSun.setForeground(Color.BLUE);

lblMon.setForeground(Color.BLUE);

lblTues.setForeground(Color.BLUE);

lblWed.setForeground(Color.BLUE);

lblThur.setForeground(Color.BLUE);

lblFri.setForeground(Color.BLUE);

lblSat.setForeground(Color.BLUE);

setLayout(new GridLayout(1,7));

add(lblSun);

add(lblMon);

add(lblTues);

add(lblWed);

add(lblThur);

add(lblFri);

add(lblSat);

setBorder(BorderFactory.createLineBorder(Color.BLUE));

setPreferredSize(new Dimension(340,25));

}

//display days of month,according to the month and the year,decided how to list all days

class DayPanel extends JPanel implements ActionListener...{

JButton[] dayList;

JButton selectedBtn;

public DayPanel()...{

dayList = new JButton[42];

setLayout(new GridLayout(6,7,0,0));

for (int i = 0; i < dayList.length; i++) ...{

dayList[i] = new JButton();

add(dayList[i]);

dayList[i].setPreferredSize(new Dimension(48,25));

}

setBorder(BorderFactory.createLineBorder(Color.blue));

updateShow(Calendar.getInstance());

}

//update view according to the selected year and month

public void updateShow(Calendar selectedDate)...{

for (int i = 0; i < dayList.length; i++) ...{

dayList[i].setVisible(true);

dayList[i].setForeground(Color.BLACK);

}

int dayOfMonth = selectedDate.get(Calendar.DAY_OF_MONTH);

selectedDate.set(Calendar.DAY_OF_MONTH,1);

int dayOfWeek = selectedDate.get(Calendar.DAY_OF_WEEK);

int[] days = countDay(selectedDate);

int currentDay = 0;

for (int i = 0; i < days.length; i++) ...{

if(days[i] == 0)...{

dayList[i].setVisible(false);

}else...{

currentDay++;

dayList[i].setText(String.valueOf(currentDay));

dayList[i].addActionListener(this);

}

dayList[dayOfMonth + dayOfWeek - 2].setForeground(Color.red);

repaint();

}

//count the days of the month

private int[] countDay(Calendar selectedDate)...{

int[] day = new int[42];

int oldMonth = selectedDate.get(Calendar.MONTH);

int dayOfWeek = selectedDate.get(Calendar.DAY_OF_WEEK);

boolean isNextMonth = true;

int allDay = 0;

while(isNextMonth)...{

selectedDate.add(Calendar.DAY_OF_MONTH,1);

if(oldMonth != selectedDate.get(Calendar.MONTH))...{

isNextMonth = false;

}

allDay++;

}

for(int i = 0;i < allDay;i++)...{

day[dayOfWeek - 1 + i] = 1;

}

return day;

}

//show the selected data in txtShow by java.lang.String

public void actionPerformed(ActionEvent e) ...{

JButton source = (JButton)e.getSource();

dc.dispose();

String s = cbxYear.getSelectedItem() + "-"

+ cbxMonth.getSelectedItem() + "-"

+ source.getText().trim();

txtShow.setText(s);

isShow = false;

}

//compose the YearAndMonthPanel,the WeekPanel and the DayPanel into the DateComponent view

class DateComponent extends JWindow...{

public DateComponent()...{

Container c = getContentPane();

JPanel pnlMain = new JPanel();

YearAndMonthPanel yamp = new YearAndMonthPanel();

WeekPanel wp = new WeekPanel();

dp = new DayPanel();

pnlMain.add(yamp);

pnlMain.add(wp);

pnlMain.add(dp);

c.add(pnlMain, BorderLayout.CENTER);

getRootPane().setBorder(BorderFactory.createLineBorder(Color.orange));

setVisible(true);

pack();

setAlwaysOnTop(true);

}

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标签： java import class date string 360

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