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改写的基于SWING的日期选择控件

王朝system·作者佚名  2008-05-31
窄屏简体版  字體: |||超大  

上次公司需要,搞了一个SWING的Aapplication的DEMO,重新弄了一般SWING,可惜最后无疾而终,可悲.....

最近离职,把以前的东西整理了一下,觉得多少有点用处,写下算是悼念吧!

这是其中日期选择控件的代码,改编自网上某个程序(记不得了),界面如下所示:

源代码:

//DatePicker.java

package com.kxsoft.component;

import java.awt.*;

import java.awt.event.*;

import java.util.GregorianCalendar;

import java.util.Date;

import java.util.Calendar;

import java.text.DateFormat;

import java.text.FieldPosition;

import javax.swing.*;

import javax.swing.plaf.BorderUIResource;

public final class DatePicker extends JPanel {

PRivate static final long serialVersionUID = 1L;

private static final int startX = 10;

private static final int startY = 60;

private static final Font smallFont = new Font("Dialog", Font.PLAIN, 10);

private static final Font largeFont = new Font("Dialog", Font.PLAIN, 12);

private static final Insets insets = new Insets(2, 2, 2, 2);

private static final Color highlight = new Color(255, 255, 204);

private static final Color white = new Color(255, 255, 255);

private static final Color gray = new Color(204, 204, 204);

private Component selectedDay = null;

private GregorianCalendar selectedDate = null;

private GregorianCalendar originalDate = null;

private boolean hideOnSelect = true;

private final JButton backButton = new JButton();

private final JLabel monthAndYear = new JLabel();

private final JButton forwardButton = new JButton();

private final JLabel[] dayHeadings = new JLabel[]{

new JLabel("日"),

new JLabel("一"),

new JLabel("二"),

new JLabel("三"),

new JLabel("四"),

new JLabel("五"),

new JLabel("六")};

private final JLabel[][] daysInMonth = new JLabel[][]{

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()},

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()},

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()},

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()},

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()},

{new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel(),

new JLabel()}

};

private final JButton todayButton = new JButton();

private final JButton cancelButton = new JButton();

public DatePicker() {

super();

selectedDate = getToday();

init();

}

public DatePicker(final Date initialDate) {

super();

if (null == initialDate)

selectedDate = getToday();

else

(selectedDate = new GregorianCalendar()).setTime(initialDate);

originalDate = new GregorianCalendar(

selectedDate.get(Calendar.YEAR),

selectedDate.get(Calendar.MONTH),

selectedDate.get(Calendar.DATE));

init();

}

public boolean isHideOnSelect() {

return hideOnSelect;

}

public void setHideOnSelect(final boolean hideOnSelect) {

if (this.hideOnSelect != hideOnSelect) {

this.hideOnSelect = hideOnSelect;

initButtons(false);

}

}

public Date getDate() {

if (null != selectedDate)

return selectedDate.getTime();

return null;

}

private void init() {

setLayout(new AbsoluteLayout());

this.setMinimumSize(new Dimension(161, 226));

this.setMaximumSize(getMinimumSize());

this.setPreferredSize(getMinimumSize());

this.setBorder(new BorderUIResource.EtchedBorderUIResource());

backButton.setFont(smallFont);

backButton.setText("<");

backButton.setMargin(insets);

backButton.setDefaultCapable(false);

backButton.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent evt) {

onBackClicked(evt);

}

});

add(backButton, new AbsoluteConstraints(10, 10, 20, 20));

monthAndYear.setFont(largeFont);

monthAndYear.setHorizontalAlignment(JTextField.CENTER);

monthAndYear.setText(formatDateText(selectedDate.getTime()));

add(monthAndYear, new AbsoluteConstraints(30, 10, 100, 20));

forwardButton.setFont(smallFont);

forwardButton.setText("");

forwardButton.setMargin(insets);

forwardButton.setDefaultCapable(false);

forwardButton.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent evt) {

onForwardClicked(evt);

}

});

add(forwardButton, new AbsoluteConstraints(130, 10, 20, 20));

int x = startX;

for (int ii = 0; ii < dayHeadings.length; ii++) {

dayHeadings[ii].setOpaque(true);

dayHeadings[ii].setBackground(Color.LIGHT_GRAY);

dayHeadings[ii].setForeground(Color.WHITE);

dayHeadings[ii].setHorizontalAlignment(JLabel.CENTER);

add(dayHeadings[ii], new AbsoluteConstraints(x, 40, 21, 21));

x += 20;

}

x = startX;

int y = startY;

for (int ii = 0; ii < daysInMonth.length; ii++) {

for (int jj = 0; jj < daysInMonth[ii].length; jj++) {

daysInMonth[ii][jj].setOpaque(true);

daysInMonth[ii][jj].setBackground(white);

daysInMonth[ii][jj].setFont(smallFont);

daysInMonth[ii][jj].setHorizontalAlignment(JLabel.CENTER);

daysInMonth[ii][jj].setText("");

daysInMonth[ii][jj].addMouseListener(new MouseAdapter() {

public void mouseClicked(final MouseEvent evt) {

onDayClicked(evt);

}

});

add(daysInMonth[ii][jj], new AbsoluteConstraints(x, y, 21, 21));

x += 20;

}

x = startX;

y += 20;

}

initButtons(true);

calculateCalendar();

}

private void initButtons(final boolean firstTime) {

if (firstTime) {

final Dimension buttonSize = new Dimension(68, 24);

todayButton.setText("今天");

todayButton.setMargin(insets);

todayButton.setMaximumSize(buttonSize);

todayButton.setMinimumSize(buttonSize);

todayButton.setPreferredSize(buttonSize);

todayButton.setDefaultCapable(true);

todayButton.setSelected(true);

todayButton.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent evt) {

onToday(evt);

}

});

cancelButton.setText("取消");

cancelButton.setMargin(insets);

cancelButton.setMaximumSize(buttonSize);

cancelButton.setMinimumSize(buttonSize);

cancelButton.setPreferredSize(buttonSize);

cancelButton.addActionListener(new ActionListener() {

public void actionPerformed(final ActionEvent evt) {

onCancel(evt);

}

});

} else {

this.remove(todayButton);

this.remove(cancelButton);

}

if (hideOnSelect) {

add(todayButton, new Absolut

 
 
 
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