import java.awt.BorderLayout;   
import java.awt.Font;   
import java.awt.Insets;   
import java.awt.event.ActionEvent;   
import java.awt.event.ActionListener;   
import java.awt.event.KeyEvent;   
import java.beans.PropertyChangeEvent;   
import java.beans.PropertyChangeListener;   
import java.net.URL;   
import java.util.Calendar;   
import java.util.Date;   
import java.util.Locale;   
  
import javax.swing.ImageIcon;   
import javax.swing.JButton;   
import javax.swing.JFrame;   
import javax.swing.JPanel;   
import javax.swing.JPopupMenu;   
import javax.swing.MenuElement;   
import javax.swing.MenuSelectionManager;   
import javax.swing.SwingUtilities;   
import javax.swing.event.ChangeEvent;   
import javax.swing.event.ChangeListener;   
  
public class JDateChooser extends JPanel implements ActionListener,   
      PropertyChangeListener {   
  
   private static final long serialVersionUID = -4306412745720670722L;   
  
   //protected IDateEditor dateEditor;   
  
   protected JButton calendarButton;   
  
   //protected JCalendar jcalendar;   
  
   protected JPopupMenu popup;   
  
   protected boolean isInitialized;   
  
   protected boolean dateSelected;   
  
   protected Date lastSelectedDate;   
  
   private ChangeListener changeListener;   
  
   public JDateChooser() {   
      this(null, null, null, null);   
   }   
  
   public JDateChooser(IDateEditor dateEditor) {   
      this(null, null, null, dateEditor);   
   }   
  
  
   public JDateChooser(Date date) {   
      this(date, null);   
   }   
  
   public JDateChooser(Date date, String dateFormatString) {   
      this(date, dateFormatString, null);   
   }   
  
   public JDateChooser(Date date, String dateFormatString,   
         IDateEditor dateEditor) {   
      this(null, date, dateFormatString, dateEditor);   
   }   
  
  
   public JDateChooser(String datePattern, String maskPattern, char placeholder) {   
      this(null, null, datePattern, new JTextFieldDateEditor(datePattern,   
            maskPattern, placeholder));   
   }   
  
  
   public JDateChooser(JCalendar jcal, Date date, String dateFormatString,   
         IDateEditor dateEditor) {   
      setName("JDateChooser");   
  
      this.dateEditor = dateEditor;   
      if (this.dateEditor == null) {   
         this.dateEditor = new JTextFieldDateEditor();   
      }   
      this.dateEditor.addPropertyChangeListener("date", this);   
  
      if (jcal == null) {   
         jcalendar = new JCalendar(date);   
      } else {   
         jcalendar = jcal;   
         if (date != null) {   
            jcalendar.setDate(date);   
         }   
      }   
  
      setLayout(new BorderLayout());   
  
      jcalendar.getDayChooser().addPropertyChangeListener("day", this);   
  
      jcalendar.getDayChooser().setAlwaysFireDayProperty(true);   
  
      setDateFormatString(dateFormatString);   
      setDate(date);   
  
      URL iconURL = getClass().getResource(   
            "/com/toedter/calendar/images/JDateChooserIcon.gif");   
      ImageIcon icon = new ImageIcon(iconURL);   
  
      calendarButton = new JButton(icon) {   
         private static final long serialVersionUID = -1913767779079949668L;   
  
         public boolean isFocusable() {   
            return false;   
         }   
      };   
      calendarButton.setMargin(new Insets(0, 0, 0, 0));   
      calendarButton.addActionListener(this);   
  
      calendarButton.setMnemonic(KeyEvent.VK_C);   
  
      add(calendarButton, BorderLayout.EAST);   
      add(this.dateEditor.getUiComponent(), BorderLayout.CENTER);   
  
      calendarButton.setMargin(new Insets(0, 0, 0, 0));   
  
      popup = new JPopupMenu() {   
         private static final long serialVersionUID = -6078272560337577761L;   
  
         public void setVisible(boolean b) {   
            Boolean isCanceled = (Boolean) getClientProperty("JPopupMenu.firePopupMenuCanceled");   
            if (b   
                  || (!b && dateSelected)   
                  || ((isCanceled != null) && !b && isCanceled   
                        .booleanValue())) {   
               super.setVisible(b);   
            }   
         }   
      };   
  
      popup.setLightWeightPopupEnabled(true);   
  
      popup.add(jcalendar);   
  
      lastSelectedDate = date;   
  
      changeListener = new ChangeListener() {   
         boolean hasListened = false;   
  
         public void stateChanged(ChangeEvent e) {   
            if (hasListened) {   
               hasListened = false;   
               return;   
            }   
            if (popup.isVisible()   
                  && JDateChooser.this.jcalendar.monthChooser   
                        .getComboBox().hasFocus()) {   
               MenuElement[] me = MenuSelectionManager.defaultManager()   
                     .getSelectedPath();   
               MenuElement[] newMe = new MenuElement[me.length + 1];   
               newMe[0] = popup;   
               for (int i = 0; i < me.length; i++) {   
                  newMe[i + 1] = me[i];   
               }   
               hasListened = true;   
               MenuSelectionManager.defaultManager()   
                     .setSelectedPath(newMe);   
            }   
         }   
      };   
      MenuSelectionManager.defaultManager().addChangeListener(changeListener);   
      // end of code provided by forum user podiatanapraia   
  
      isInitialized = true;   
   }   
  
   public void actionPerformed(ActionEvent e) {   
      int x = calendarButton.getWidth()   
            - (int) popup.getPreferredSize().getWidth();   
      int y = calendarButton.getY() + calendarButton.getHeight();   
  
      Calendar calendar = Calendar.getInstance();   
      Date date = dateEditor.getDate();   
      if (date != null) {   
         calendar.setTime(date);   
      }   
      jcalendar.setCalendar(calendar);   
      popup.show(calendarButton, x, y);   
      dateSelected = false;   
   }   
  
   public void propertyChange(PropertyChangeEvent evt) {   
      if (evt.getPropertyName().equals("day")) {   
         if (popup.isVisible()) {   
            dateSelected = true;   
            popup.setVisible(false);   
            setDate(jcalendar.getCalendar().getTime());   
         }   
      } else if (evt.getPropertyName().equals("date")) {   
         if (evt.getSource() == dateEditor) {   
            firePropertyChange("date", evt.getOldValue(), evt.getNewValue());   
         } else {   
            setDate((Date) evt.getNewValue());   
         }   
      }   
   }   
  
  
   public void updateUI() {   
      super.updateUI();   
      setEnabled(isEnabled());   
  
      if (jcalendar != null) {   
         SwingUtilities.updateComponentTreeUI(popup);   
      }   
   }   
  
  
   public void setLocale(Locale l) {   
      super.setLocale(l);   
      dateEditor.setLocale(l);   
      jcalendar.setLocale(l);   
   }   
  
  
   public String getDateFormatString() {   
      return dateEditor.getDateFormatString();   
                   
   }   
  
   public void setDateFormatString(String dfString) {   
      dateEditor.setDateFormatString(dfString);   
      invalidate();   
   }   
  
   public Date getDate() {   
      return dateEditor.getDate();   
   }   
  
   public void setDate(Date date) {   
      dateEditor.setDate(date);   
      if (getParent() != null) {   
         getParent().invalidate();   
      }   
   }   
  
   public Calendar getCalendar() {   
      Date date = getDate();   
      if (date == null) {   
         return null;   
      }   
      Calendar calendar = Calendar.getInstance();   
      calendar.setTime(date);   
      return calendar;   
   }   
  
   public void setCalendar(Calendar calendar) {   
      if (calendar == null) {   
         dateEditor.setDate(null);   
      } else {   
         dateEditor.setDate(calendar.getTime());   
      }   
   }   
  
  
   public void setEnabled(boolean enabled) {   
      super.setEnabled(enabled);   
      if (dateEditor != null) {   
         dateEditor.setEnabled(enabled);   
         calendarButton.setEnabled(enabled);   
      }   
   }   
  
   public boolean isEnabled() {   
      return super.isEnabled();   
   }   
  
   public void setIcon(ImageIcon icon) {   
      calendarButton.setIcon(icon);   
   }   
  
   public void setFont(Font font) {   
      if (isInitialized) {   
         dateEditor.getUiComponent().setFont(font);   
         jcalendar.setFont(font);   
      }   
      super.setFont(font);   
   }   
  
   public JCalendar getJCalendar() {   
      return jcalendar;   
   }   
  
   public JButton getCalendarButton() {   
      return calendarButton;   
   }   
  
   public IDateEditor getDateEditor() {   
      return dateEditor;   
   }   
  
   public void setSelectableDateRange(Date min, Date max) {   
      jcalendar.setSelectableDateRange(min, max);   
      dateEditor.setSelectableDateRange(jcalendar.getMinSelectableDate(),   
            jcalendar.getMaxSelectableDate());   
   }   
  
   public void setMaxSelectableDate(Date max) {   
      jcalendar.setMaxSelectableDate(max);   
      dateEditor.setMaxSelectableDate(max);   
   }   
  
   public void setMinSelectableDate(Date min) {   
      jcalendar.setMinSelectableDate(min);   
      dateEditor.setMinSelectableDate(min);   
   }   
  
   public Date getMaxSelectableDate() {   
      return jcalendar.getMaxSelectableDate();   
   }   
  
   public Date getMinSelectableDate() {   
      return jcalendar.getMinSelectableDate();   
   }   
  
   public void cleanup() {   
      MenuSelectionManager.defaultManager().removeChangeListener(changeListener);   
      changeListener = null;   
   }   
  
   public static void main(String[] s) {   
      JFrame frame = new JFrame("JDateChooser");   
      JDateChooser dateChooser = new JDateChooser();   
  
      frame.getContentPane().add(dateChooser);   
      frame.pack();   
      frame.setVisible(true);   
   }   
  
}