/* *  JDayChooser.java  - A bean for choosing a day *  Copyright (C) 2002 Kai Toedter *  kai@toedter.com *  www.toedter.com * *  This program is free software; you can redistribute it and/or *  modify it under the terms of the GNU Lesser General Public License *  as published by the Free Software Foundation; either version 2 *  of the License, or (at your option) any later version. * *  This program is distributed in the hope that it will be useful, *  but WITHOUT ANY WARRANTY; without even the implied warranty of *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the *  GNU Lesser General Public License for more details. * *  You should have received a copy of the GNU Lesser General Public License *  along with this program; if not, write to the Free Software *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */package com.toedter.calendar;import java.awt.Color;import java.awt.Font;import java.awt.GridLayout;import java.awt.Insets;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.FocusEvent;import java.awt.event.FocusListener;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.awt.event.MouseListener;import java.text.DateFormatSymbols;import java.util.Calendar;import java.util.Date;import java.util.Locale;import javax.swing.JButton;import javax.swing.JFrame;import javax.swing.JPanel;/** *  JCalendar is a bean for choosing a day. * *@author     Kai Toedter *@version    1.1.3 07/16/02 */public class JDayChooser extends JPanel implements ActionListener, KeyListener, FocusListener {	private static final long serialVersionUID = 3761409733051103536L;	/**	 *  Default JDayChooser constructor.	 */	public JDayChooser() {		locale = Locale.getDefault();		days = new JButton[49];		selectedDay = null;		Calendar calendar = Calendar.getInstance(locale);		today = (Calendar) calendar.clone();		//this.setFont(new Font("宋體", 0, 12));		setLayout(new GridLayout(7, 7));		for (int y = 0; y < 7; y++) {			for (int x = 0; x < 7; x++) {				int index = x + 7 * y;				if (y == 0) {					// Create a button that doesn't react on clicks or focus changes					// Thanks to Thomas Schaefer for the focus hint :)					days[index] =						new JButton() {							private static final long serialVersionUID = 3257562914834428721L;							public void addMouseListener(									MouseListener l) { }							// This method has been deprecated by 1.4							// and will be replaced by isFocusable in future versions							public boolean isFocusTraversable() {								return false;							}						};					days[index].setBackground(new Color(180, 180, 200));				} else {					days[index] = new JButton("x");					days[index].addActionListener(this);					days[index].addKeyListener(this);					days[index].addFocusListener(this);				}				days[index].setMargin(new Insets(0, 0, 0, 0));				days[index].setFocusPainted(false);				add(days[index]);			}		}		init();		setDay(Calendar.getInstance().get(Calendar.DAY_OF_MONTH));		initialized = true;	}	/**	 *  Initilizes the locale specific names for the days of the week.	 */	protected void init() {		colorRed = new Color(164, 0, 0);		colorBlue = new Color(0, 0, 164);		JButton testButton = new JButton();		oldDayBackgroundColor = testButton.getBackground();		selectedColor = new Color(160, 160, 160);		calendar = Calendar.getInstance(locale);		int firstDayOfWeek = calendar.getFirstDayOfWeek();		DateFormatSymbols dateFormatSymbols = new DateFormatSymbols(locale);		dayNames = dateFormatSymbols.getShortWeekdays();		int day = firstDayOfWeek;		for (int i = 0; i < 7; i++) {			days[i].setText(dayNames[day]);			if (day == 1) {				days[i].setForeground(colorRed);			} else {				days[i].setForeground(colorBlue);			}			if (day < 7) {				day++;			} else {				day -= 6;			}		}		drawDays();	}	/**	 *  Hides and shows the day buttons.	 */	protected void drawDays() {		Calendar tmpCalendar = (Calendar) calendar.clone();		int firstDayOfWeek = tmpCalendar.getFirstDayOfWeek();		tmpCalendar.set(Calendar.DAY_OF_MONTH, 1);		int firstDay =				tmpCalendar.get(Calendar.DAY_OF_WEEK) - firstDayOfWeek;		if (firstDay < 0) {			firstDay += 7;		}		int i;		for (i = 0; i < firstDay; i++) {			days[i + 7].setVisible(false);			days[i + 7].setText("");		}		tmpCalendar.add(Calendar.MONTH, 1);		Date firstDayInNextMonth = tmpCalendar.getTime();		tmpCalendar.add(Calendar.MONTH, -1);		Date day = tmpCalendar.getTime();		int n = 0;		Color foregroundColor = getForeground();		while (day.before(firstDayInNextMonth)) {			days[i + n + 7].setText(Integer.toString(n + 1));			days[i + n + 7].setVisible(true);			if (tmpCalendar.get(Calendar.DAY_OF_YEAR) ==					today.get(Calendar.DAY_OF_YEAR) &&					tmpCalendar.get(Calendar.YEAR) ==					today.get(Calendar.YEAR)) {				days[i + n + 7].setForeground(colorRed);			} else {				days[i + n + 7].setForeground(foregroundColor);			}			if (n + 1 == this.day) {				days[i + n + 7].setBackground(selectedColor);				selectedDay = days[i + n + 7];			} else {				days[i + n + 7].setBackground(oldDayBackgroundColor);			}			n++;			tmpCalendar.add(Calendar.DATE, 1);			day = tmpCalendar.getTime();		}		for (int k = n + i + 7; k < 49; k++) {			days[k].setVisible(false);			days[k].setText("");		}	}	/**	 *  Returns the locale.	 *	 *@return    The locale value	 *@see       #setLocale	 */	public Locale getLocale() {		return locale;	}	/**	 *  Sets the locale.	 *	 *@param  l  The new locale value	 *@see       #getLocale	 */	public void setLocale(Locale l) {		if (!initialized) {			super.setLocale(l);		} else {			locale = l;			init();		}	}	/**	 *  Sets the day. This is a bound property.	 *	 *@param  d  the day	 *@see       #getDay	 */	public void setDay(int d) {		if (d < 1) {			d = 1;		}		Calendar tmpCalendar = (Calendar) calendar.clone();		tmpCalendar.set(Calendar.DAY_OF_MONTH, 1);		tmpCalendar.add(Calendar.MONTH, 1);		tmpCalendar.add(Calendar.DATE, -1);		int maxDaysInMonth = tmpCalendar.get(Calendar.DATE);		if (d > maxDaysInMonth) {			d = maxDaysInMonth;		}		int oldDay = day;		day = d;		if (selectedDay != null) {			selectedDay.setBackground(oldDayBackgroundColor);			selectedDay.repaint();			// Bug: needed for Swing 1.0.3		}		for (int i = 7; i < 49; i++) {			if (days[i].getText().equals(Integer.toString(day))) {				selectedDay = days[i];				selectedDay.setBackground(selectedColor);				break;			}		}		firePropertyChange("day", oldDay, day);	}	/**	 *  Returns the selected day.	 *	 *@return    The day value	 *@see       #setDay	 */	public int getDay() {		return day;	}	/**	 *  Sets a specific month. This is needed for correct graphical representation	 *  of the days.	 *	 *@param  month  the new month	 */	public void setMonth(int month) {		calendar.set(Calendar.MONTH, month);		setDay(day);		drawDays();	}	/**	 *  Sets a specific year. This is needed for correct graphical representation	 *  of the days.	 *	 *@param  year  the new year	 */	public void setYear(int year) {		calendar.set(Calendar.YEAR, year);		drawDays();	}	/**	 *  Sets a specific calendar. This is needed for correct graphical	 *  representation of the days.	 *	 *@param  c  the new calendar	 */	public void setCalendar(Calendar c) {		calendar = c;		drawDays();	}	/**	 *  Sets the font property.	 *	 *@param  font  the new font	 */	public void setFont(Font font) {		if (days != null) {			for (int i = 0; i < 49; i++) {				days[i].setFont(font);			}		}	}	/**	 *  Sets the foregroundColor color.	 *	 *@param  fg  the new foregroundColor	 */	public void setForeground(Color fg) {		super.setForeground(fg);		if (days != null) {			for (int i = 7; i < 49; i++) {				days[i].setForeground(fg);			}			drawDays();		}	}	/**	 *  Returns "JDayChooser".	 *	 *@return    The name value	 */	public String getName() {		return "JDayChooser";	}	/**	 *  JDayChooser is the ActionListener for all day buttons.	 *	 *@param  e  Description of the Parameter	 */	public void actionPerformed(ActionEvent e) {		JButton button = (JButton) e.getSource();		String buttonText = button.getText();		int day = new Integer(buttonText).intValue();		setDay(day);	}	/**	 *  JDayChooser is the FocusListener for all day buttons. (Added by Thomas	 *  Schaefer)	 *	 *@param  e  Description of the Parameter	 */	public void focusGained(FocusEvent e) {		JButton button = (JButton) e.getSource();		String buttonText = button.getText();		if (buttonText != null && !buttonText.equals("")) {			actionPerformed(new ActionEvent(e.getSource(), 0, null));		}	}	/**	 *  Does nothing.	 *	 *@param  e  Description of the Parameter	 */	public void focusLost(FocusEvent e) {	}	/**	 *  JDayChooser is the KeyListener for all day buttons. (Added by Thomas	 *  Schaefer)	 *	 *@param  e  Description of the Parameter	 */	public void keyPressed(KeyEvent e) {		int offset = e.getKeyCode() == KeyEvent.VK_UP ? -7 :				e.getKeyCode() == KeyEvent.VK_DOWN ? +7 :				e.getKeyCode() == KeyEvent.VK_LEFT ? -1 :				e.getKeyCode() == KeyEvent.VK_RIGHT ? +1 : 0;		if (offset != 0) {			for (int i = getComponentCount() - 1; i >= 0; --i) {				if (getComponent(i) == selectedDay) {					i += offset;					if (i > 7 && i < days.length && days[i].isVisible()) {						days[i].requestFocus();						//int day = new Integer(days[i].getText()).intValue();						//setDay( day );					}					break;				}			}		}	}	/**	 *  Does nothing.	 *	 *@param  e  Description of the Parameter	 */	public void keyTyped(KeyEvent e) {	}	/**	 *  Does nothing.	 *	 *@param  e  Description of the Parameter	 */	public void keyReleased(KeyEvent e) {	}	/**	 *  Enable or disable the JDayChooser.	 *	 *@param  enabled  The new enabled value	 */	public void setEnabled(boolean enabled) {		super.setEnabled(enabled);		for (short i = 0; i < days.length; i++) {			if (days[i] != null) {				days[i].setEnabled(enabled);			}		}	}	/**	 *  Creates a JFrame with a JDayChooser inside and can be used for testing.	 *	 *@param  s  The command line arguments	 */	public static void main(String[] s) {		JFrame frame = new JFrame("JDayChooser");		frame.getContentPane().add(new JDayChooser());		frame.pack();		frame.setVisible(true);	}	private JButton days[];	private JButton selectedDay;	private int day;	private Color oldDayBackgroundColor;	private Color selectedColor;	private Color colorRed;	private Color colorBlue;	private String dayNames[];	private Calendar calendar;	private Calendar today;	private Locale locale;	private boolean initialized = false;}