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* Copyright (C) 2004 Kai Toedter
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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package com.toedter.calendar;
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import java.awt.BorderLayout;
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import java.awt.Color;
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import java.beans.PropertyChangeEvent;
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import java.beans.PropertyChangeListener;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.Locale;
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import javax.swing.BorderFactory;
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import javax.swing.JFrame;
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import javax.swing.JPanel;
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* JCalendar is a bean for entering a date by choosing the year, month and day.
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public class JCalendar extends JPanel implements PropertyChangeListener {
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private Calendar calendar;
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/** the day chooser */
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protected JDayChooser dayChooser;
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private boolean initialized = false;
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/** indicates if weeks of year shall be visible */
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protected boolean weekOfYearVisible = true;
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protected Locale locale;
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/** the month chooser */
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protected JMonthChooser monthChooser;
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private JPanel monthYearPanel;
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/** the year chhoser */
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protected JYearChooser yearChooser;
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* Default JCalendar constructor.
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this(null, null, true, true);
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* JCalendar constructor specifying the month spinner type.
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* @param monthSpinner false, if no month spinner should be used
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public JCalendar(boolean monthSpinner) {
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this(null, null, monthSpinner, true);
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* JCalendar constructor which allows the initial date to be set.
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* @param date the date
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public JCalendar(Date date) {
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this(date, null, true, true);
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* JCalendar constructor allowing the initial locale to be set.
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* @param locale the new locale
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public JCalendar(Locale locale) {
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this(null, locale, true, true);
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* JCalendar constructor specifying both the initial date and locale.
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* @param date the date
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* @param locale the new locale
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public JCalendar(Date date, Locale locale) {
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this(date, locale, true, true);
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* JCalendar constructor specifying both the initial date and the month
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* @param date the date
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* @param monthSpinner false, if no month spinner should be used
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public JCalendar(Date date, boolean monthSpinner) {
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this(date, null, monthSpinner, true);
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* JCalendar constructor specifying both the locale and the month spinner.
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* @param locale the locale
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* @param monthSpinner false, if no month spinner should be used
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public JCalendar(Locale locale, boolean monthSpinner) {
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this(null, locale, monthSpinner, true);
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* JCalendar constructor with month spinner parameter.
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* @param date the date
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* @param locale the locale
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* @param monthSpinner false, if no month spinner should be used
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* @param weekOfYearVisible true, if weeks of year shall be visible
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public JCalendar(Date date, Locale locale, boolean monthSpinner,
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boolean weekOfYearVisible) {
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// needed for setFont() etc.
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this.weekOfYearVisible = weekOfYearVisible;
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this.locale = locale;
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if (locale == null) {
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this.locale = Locale.getDefault();
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calendar = Calendar.getInstance();
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setLayout(new BorderLayout());
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monthYearPanel = new JPanel();
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monthYearPanel.setLayout(new BorderLayout());
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monthChooser = new JMonthChooser(monthSpinner);
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yearChooser = new JYearChooser();
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monthChooser.setYearChooser(yearChooser);
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monthYearPanel.add(monthChooser, BorderLayout.WEST);
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monthYearPanel.add(yearChooser, BorderLayout.CENTER);
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monthYearPanel.setBorder(BorderFactory.createEmptyBorder());
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dayChooser = new JDayChooser(weekOfYearVisible);
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dayChooser.addPropertyChangeListener(this);
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monthChooser.setDayChooser(dayChooser);
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monthChooser.addPropertyChangeListener(this);
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yearChooser.setDayChooser(dayChooser);
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yearChooser.addPropertyChangeListener(this);
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add(monthYearPanel, BorderLayout.NORTH);
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add(dayChooser, BorderLayout.CENTER);
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// Set the initialized flag before setting the calendar. This will
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// cause the other components to be updated properly.
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calendar.setTime(date);
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setCalendar(calendar);
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* Creates a JFrame with a JCalendar inside and can be used for testing.
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* @param s The command line arguments
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public static void main(String[] s) {
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JFrame frame = new JFrame("JCalendar");
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frame.getContentPane().add(new JCalendar());
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frame.setVisible(true);
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* Returns the calendar property.
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* @return the value of the calendar property.
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public Calendar getCalendar() {
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* Gets the dayChooser attribute of the JCalendar object
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* @return the dayChooser value
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public JDayChooser getDayChooser() {
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* Returns the locale.
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* @return the value of the locale property.
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public Locale getLocale() {
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* Gets the monthChooser attribute of the JCalendar object
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* @return the monthChooser value
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public JMonthChooser getMonthChooser() {
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* Returns "JCalendar".
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* @return "JCalendar"
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public String getName() {
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* Gets the yearChooser attribute of the JCalendar object
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* @return the yearChooser value
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public JYearChooser getYearChooser() {
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* Indicates if the weeks of year are visible..
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* @return boolean true, if weeks of year are visible
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public boolean isWeekOfYearVisible() {
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return dayChooser.isWeekOfYearVisible();
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* JCalendar is a PropertyChangeListener, for its day, month and year
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* @param evt the property change event
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public void propertyChange(PropertyChangeEvent evt) {
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if (calendar != null) {
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Calendar c = (Calendar) calendar.clone();
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if (evt.getPropertyName().equals("day")) {
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c.set(Calendar.DAY_OF_MONTH,
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((Integer) evt.getNewValue()).intValue());
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setCalendar(c, false);
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} else if (evt.getPropertyName().equals("month")) {
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c.set(Calendar.MONTH, ((Integer) evt.getNewValue()).intValue());
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setCalendar(c, false);
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} else if (evt.getPropertyName().equals("year")) {
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c.set(Calendar.YEAR, ((Integer) evt.getNewValue()).intValue());
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setCalendar(c, false);
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} else if (evt.getPropertyName().equals("date")) {
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c.setTime((Date) evt.getNewValue());
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setCalendar(c, true);
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* Sets the background color.
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* @param bg the new background
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public void setBackground(Color bg) {
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super.setBackground(bg);
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if (dayChooser != null) {
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dayChooser.setBackground(bg);
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* Sets the calendar property. This is a bound property.
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* @param c the new calendar
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public void setCalendar(Calendar c) {
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setCalendar(c, true);
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* Sets the calendar attribute of the JCalendar object
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* @param c the new calendar value
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* @param update the new calendar value
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private void setCalendar(Calendar c, boolean update) {
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Calendar oldCalendar = calendar;
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// Thanks to Jeff Ulmer for correcting a bug in the sequence :)
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yearChooser.setYear(c.get(Calendar.YEAR));
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monthChooser.setMonth(c.get(Calendar.MONTH));
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dayChooser.setDay(c.get(Calendar.DATE));
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firePropertyChange("calendar", oldCalendar, calendar);
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* Enable or disable the JCalendar.
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* @param enabled the new enabled value
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public void setEnabled(boolean enabled) {
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super.setEnabled(enabled);
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if (dayChooser != null) {
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dayChooser.setEnabled(enabled);
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monthChooser.setEnabled(enabled);
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yearChooser.setEnabled(enabled);
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* Returns true, if enabled.
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* @return true, if enabled.
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public boolean isEnabled() {
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return super.isEnabled();
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* Sets the font property.
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* @param font the new font
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public void setFont(Font font) {
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if (dayChooser != null) {
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dayChooser.setFont(font);
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monthChooser.setFont(font);
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yearChooser.setFont(font);
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* Sets the foreground color.
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* @param fg the new foreground
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public void setForeground(Color fg) {
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super.setForeground(fg);
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if (dayChooser != null) {
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dayChooser.setForeground(fg);
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monthChooser.setForeground(fg);
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yearChooser.setForeground(fg);
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* Sets the locale property. This is a bound property.
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* @param l the new locale value
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public void setLocale(Locale l) {
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Locale oldLocale = locale;
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dayChooser.setLocale(locale);
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monthChooser.setLocale(locale);
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firePropertyChange("locale", oldLocale, locale);
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* Sets the week of year visible.
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* @param weekOfYearVisible true, if weeks of year shall be visible
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public void setWeekOfYearVisible(boolean weekOfYearVisible) {
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dayChooser.setWeekOfYearVisible(weekOfYearVisible);
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setLocale(locale); // hack for doing complete new layout :)
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* Gets the visibility of the decoration background.
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* @return true, if the decoration background is visible.
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public boolean isDecorationBackgroundVisible() {
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return dayChooser.isDecorationBackgroundVisible();
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* Sets the decoration background visible.
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* @param decorationBackgroundVisible true, if the decoration background
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public void setDecorationBackgroundVisible(
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boolean decorationBackgroundVisible) {
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dayChooser.setDecorationBackgroundVisible(decorationBackgroundVisible);
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setLocale(locale); // hack for doing complete new layout :)
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* Gets the visibility of the decoration border.
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* @return true, if the decoration border is visible.
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public boolean isDecorationBordersVisible() {
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return dayChooser.isDecorationBordersVisible();
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* Sets the decoration borders visible.
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* @param decorationBordersVisible true, if the decoration borders should
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public void setDecorationBordersVisible(boolean decorationBordersVisible) {
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dayChooser.setDecorationBordersVisible(decorationBordersVisible);
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setLocale(locale); // hack for doing complete new layout :)
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* Returns the color of the decoration (day names and weeks).
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* @return the color of the decoration (day names and weeks).
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public Color getDecorationBackgroundColor() {
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return dayChooser.getDecorationBackgroundColor();
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* Sets the background of days and weeks of year buttons.
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* @param decorationBackgroundColor the background color
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public void setDecorationBackgroundColor(Color decorationBackgroundColor) {
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dayChooser.setDecorationBackgroundColor(decorationBackgroundColor);
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* Returns the Sunday foreground.
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* @return Color the Sunday foreground.
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public Color getSundayForeground() {
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return dayChooser.getSundayForeground();
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* Returns the weekday foreground.
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* @return Color the weekday foreground.
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public Color getWeekdayForeground() {
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return dayChooser.getWeekdayForeground();
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* Sets the Sunday foreground.
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* @param sundayForeground the sundayForeground to set
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public void setSundayForeground(Color sundayForeground) {
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dayChooser.setSundayForeground(sundayForeground);
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* Sets the weekday foreground.
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* @param weekdayForeground the weekdayForeground to set
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public void setWeekdayForeground(Color weekdayForeground) {
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dayChooser.setWeekdayForeground(weekdayForeground);
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* Returns a Date object.
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* @return a date object constructed from the calendar property.
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public Date getDate() {
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return new Date(calendar.getTimeInMillis());
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* Sets the date. Fires the property change "date".
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* @param date the new date.
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public void setDate(Date date) {
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Date oldDate = calendar.getTime();
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calendar.setTime(date);
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yearChooser.setYear(calendar.get(Calendar.YEAR));
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monthChooser.setMonth(calendar.get(Calendar.MONTH));
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dayChooser.setDay(calendar.get(Calendar.DATE));
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firePropertyChange("date", oldDate, date);
added
removed
src/com/toedter/calendar/JCalendar.java
