JDateChooser data;
         if  (dg== null )
        {
           data =  new  JDateChooser(true);}  // true означает, что поле не должно быть пустым     
         else 
        {
            data =  new  JDateChooser(false);  // 
            data.setDate(dg);
        }

/*
 *  JDateChooser.java  - A bean for choosing a date
 *  Copyright (C) 2004 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  jcalendar.src.com.toedter.calendar;

 import  com.toedter.calendar.JCalendar;

 import  java.awt.BorderLayout;
 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.JPanel;
 import  javax.swing.JPopupMenu;
 import  javax.swing.JSpinner;
 import  javax.swing.SpinnerDateModel;
 import  javax.swing.SwingUtilities;
 import  javax.swing.event.ChangeEvent;
 import  javax.swing.event.ChangeListener;

/**
 * A date chooser containig a date spinner and a button, that makes a JCalendar visible for
 * choosing a date.
 *
 * @author Kai Toedter
 * @version 1.2.2
 */
 public   class  JDateChooser  extends  JPanel  implements  ActionListener, PropertyChangeListener,
    ChangeListener {
     protected  JButton calendarButton;
     protected  JSpinner dateSpinner;
     protected  JSpinner.DateEditor editor;
     protected  JCalendar jcalendar;
     protected  JPopupMenu popup;
     protected  SpinnerDateModel model;
     protected  String dateFormatString;
     protected   boolean  dateSelected;
     protected   boolean  isInitialized;
     protected  Date lastSelectedDate;
     protected   boolean  startEmpty;
     protected  Locale locale;
     protected   boolean  initialized;

//    protected Locale l;

    /**
     * Creates a new JDateChooser object.
     */
     public  JDateChooser() {
         this ( null ,  null , false,  null );
    }

    /**
     * Creates a new JDateChooser object.
     *
     * @param icon the new icon
     */
     public  JDateChooser(ImageIcon icon) {
         this ( null ,  null , false, icon);
    }

    /**
     * Creates a new JDateChooser object.
     *
     * @param startEmpty true, if the date field should be empty
     */
     public  JDateChooser( boolean  startEmpty) {
         this ( null ,  null , startEmpty,  null );
    }

    /**
     * Creates a new JDateChooser object with given date format string. The default date format
     * string is "MMMMM d, yyyy".
     *
     * @param dateFormatString the date format string
     * @param startEmpty true, if the date field should be empty
     */
     public  JDateChooser(String dateFormatString,  boolean  startEmpty) {
         this ( null , dateFormatString, startEmpty,  null );
    }

    /**
     * Creates a new JDateChooser object from a given JCalendar.
     *
     * @param jcalendar the JCalendar
     */
     public  JDateChooser(JCalendar jcalendar) {
         this (jcalendar,  null , false,  null );
    }

    /**
     * Creates a new JDateChooser.
     *
     * @param jcalendar the jcalendar or null
     * @param dateFormatString the date format string or null (then "MMMMM d, yyyy" is used)
     * @param startEmpty true, if the date field should be empty
     * @param icon the icon or null (then an internal icon is used)
     */
     public  JDateChooser(JCalendar jcalendar, String dateFormatString,  boolean  startEmpty,
        ImageIcon icon) {
         if  (jcalendar ==  null ) {
            jcalendar =  new  JCalendar();
        }

         this .jcalendar = jcalendar;

         if  (dateFormatString ==  null ) {
            dateFormatString = "dd.MM.yyyy";
        }

         this .dateFormatString = dateFormatString;
         this .startEmpty = startEmpty;

        setLayout( new  BorderLayout());

        jcalendar.getDayChooser().addPropertyChangeListener( this );
        jcalendar.getDayChooser().setAlwaysFireDayProperty(true); // always fire "day" property even if the user selects the already selected day again
        model =  new  SpinnerDateModel();
        
		/*
		The 2 lines below were moved to the setModel method.
        model.setCalendarField(java.util.Calendar.WEEK_OF_MONTH);
        model.addChangeListener(this);
		*/
        
		// Begin Code change by Mark Brown on 24 Aug 2004
		setModel(model);
        dateSpinner =  new  JSpinner(model) {
			 public   void  setEnabled( boolean  enabled) {
				 super .setEnabled(enabled);
				calendarButton.setEnabled(enabled);
			}
		};
		// End Code change by Mark Brown

        String tempDateFortmatString = "";

         if  (!startEmpty) {
            tempDateFortmatString = dateFormatString;
        }

        editor =  new  JSpinner.DateEditor(dateSpinner, tempDateFortmatString);
        dateSpinner.setEditor(editor);
        add(dateSpinner, BorderLayout.CENTER);

        // Display a calendar button with an icon
         if  (icon ==  null ) {
            URL iconURL = getClass().getResource("images/JDateChooserIcon.gif");
            icon =  new  ImageIcon(iconURL);      
        }

        calendarButton =  new  JButton(icon);
        calendarButton.setMargin( new  Insets( 0 ,  0 ,  0 ,  0 ));
        calendarButton.addActionListener( this );

        // Alt + 'C' selects the calendar.
        calendarButton.setMnemonic(KeyEvent.VK_C);

        add(calendarButton, BorderLayout.EAST);

        calendarButton.setMargin( new  Insets( 0 ,  0 ,  0 ,  0 ));
        popup =  new  JPopupMenu() {
                     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 = model.getDate();
        isInitialized = true;
    }

    /**
     * Called when the jalendar button was pressed.
     *
     * @param e the action event
     */
     public   void  actionPerformed(ActionEvent e) {
         int  x = calendarButton.getWidth() - ( int ) popup.getPreferredSize().getWidth();
         int  y = calendarButton.getY() + calendarButton.getHeight();

        Calendar calendar = Calendar.getInstance();
        calendar.setTime(model.getDate());
        jcalendar.setCalendar(calendar);
        popup.show(calendarButton, x, y);
        dateSelected = false;
    }

    /**
     * Listens for a "date" property change or a "day" property change event from the JCalendar.
     * Updates the dateSpinner and closes the popup.
     *
     * @param evt the event
     */
     public   void  propertyChange(PropertyChangeEvent evt) {
         if  (evt.getPropertyName().equals("day")) {
            dateSelected = true;
            popup.setVisible(false);
            setDate(jcalendar.getCalendar().getTime());
            setDateFormatString(dateFormatString);
        }  else   if  (evt.getPropertyName().equals("date")) {
            setDate((Date) evt.getNewValue());
        }
    }

    /**
     * Updates the UI of itself and the popup.
     */
     public   void  updateUI() {
         super .updateUI();

         if  (jcalendar !=  null ) {
            SwingUtilities.updateComponentTreeUI(popup);
        }
    }

    /**
     * Sets the locale.
     *
     * @param l The new locale value
     */

      public   void  setLocale(Locale locale) {
         if  (!initialized) {
             super .setLocale(locale);
        }  else  {
             this .locale = locale;
             super .setLocale(locale);
            //init();
        }
    }
/**    public void setLocale(Locale l) {
        dateSpinner.setLocale(l);
        editor = new JSpinner.DateEditor(dateSpinner, dateFormatString);
        dateSpinner.setEditor(editor);
        jcalendar.setLocale(l);
    }*/

    /**
     * Gets the date format string.
     *
     * @return Returns the dateFormatString.
     */
     public  String getDateFormatString() {
         return  dateFormatString;
    }

    /**
     * Sets the date format string. E.g "MMMMM d, yyyy" will result in "July 21, 2004" if this is
     * the selected date and locale is English.
     *
     * @param dateFormatString The dateFormatString to set.
     */
     public   void  setDateFormatString(String dateFormatString) {
         this .dateFormatString = dateFormatString;
        editor.getFormat().applyPattern(dateFormatString);
        invalidate();
    }

    /**
     * Returns "JDateChooser".
     *
     * @return the name value
     */
     public  String getName() {
         return  "JDateChooser";
    }

    /**
     * Returns the date.
     *
     * @return the current date
     */
     public  Date getDate() {
         return  model.getDate();
    }

    /**
     * Sets the date. Fires the property change "date".
     *
     * @param date the new date.
     */
     public   void  setDate(Date date) {
        model.setValue(date);
         if  (getParent() !=  null ) {
            getParent().validate();
        }
    }

    /**
     * Fires property "date" changes, recting on the spinner's state changes.
     *
     * @param e the change event
     */
     public   void  stateChanged(ChangeEvent e) {
         if  (isInitialized) {
            firePropertyChange("date", lastSelectedDate, model.getDate());
            lastSelectedDate = model.getDate();
        }
    }
    
	/*
	 * The methods:
	 * public JSpinner getSpinner()
	 * public SpinnerDateModel getModel()
	 * public void setModel(SpinnerDateModel mdl)
	 * 
	 * were added by Mark Brown on 24 Aug 2004.  They were added to allow the setting
	 * of the SpinnerDateModel from a source outside the JDateChooser control.  This 
	 * was necessary in order to allow the JDateChooser to be integrated with applications
	 * using persistence frameworks like Oracle's ADF/BC4J.
	 */
    
	/**
	 * Return this controls JSpinner control.
     *
     * @return the JSpinner control
	 */
	 public  JSpinner getSpinner() {
		 return  dateSpinner;
	}
	
	/**
	 * Return the SpinnerDateModel associated with this control.
     *
     * @return the SpinnerDateModel
	 */
	 public  SpinnerDateModel getModel() {
		 return  model;
	}
	
	/**
	 * Set the SpinnerDateModel for this control.  This method allows the JDateChooser
	 * control to be used with some persistence frameworks (ie. Oracle ADF) to bind the
	 * control to the database Date value.
     *
     * @param mdl the SpinnerDateModel
	 */
	 public   void  setModel(SpinnerDateModel mdl) {
		model = mdl;
        model.setCalendarField(java.util.Calendar.WEEK_OF_MONTH);
        model.addChangeListener( this );
        // Begin Code change by Martin Pietruschka on 16 Sep 2004
		 if (dateSpinner !=  null )
			dateSpinner.setModel(model);
		// End Code change by Mark Brown
	}
}