package org.jtheque.utils.ui;

 /*

  * This file is part of JTheque.

  *

  * JTheque is free software: you can redistribute it and/or modify

  * it under the terms of the GNU General Public License as published by

  * the Free Software Foundation, either version 3 of the License.

  *

  * JTheque 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 General Public License for more details.

  *

  * You should have received a copy of the GNU General Public License

  * along with JTheque.  If not, see <http://www.gnu.org/licenses/>.

  */

 import javax.swing.BorderFactory;

 import javax.swing.JComponent;

 import javax.swing.JLabel;

 import javax.swing.JPanel;

 import javax.swing.JTextField;

 import javax.swing.Popup;

 import javax.swing.PopupFactory;

 import javax.swing.SwingUtilities;

 import java.awt.Color;

 /**

  * A thread to display a popup on a field.

  *

  * @author Baptiste Wicht

  */

 final class DisplayPopupThread extends Thread {

     private final PopupFactory factory = PopupFactory.getSharedInstance();

     private final JTextField owner;

     private final JComponent content;

     private Popup popup;

     private static final int DISPLAY_TIME = 2000;

     /**

      * Construct a new <code>DisplayPopupThread</code> for a specific field.

      *

      * @param field the JTextField associated in which we display popup.

      */

     DisplayPopupThread(JTextField field) {

         super();

         owner = field;

         content = new JPanel();

         content.add(new JLabel("Too long"));

         content.setBackground(Color.white);

         content.setBorder(BorderFactory.createEtchedBorder());

     }

     @Override

     public void run() {

         popup = createPopup();

         SwingUtilities.invokeLater(new Runnable() {

             @Override

             public void run() {

                 popup.show();

             }

         });

         try {

             Thread.sleep(DISPLAY_TIME);

         } catch (InterruptedException e) {

             //Nothing to do.

         }

         interrupt();

     }

     @Override

     public void interrupt() {

         close();

         super.interrupt();

     }

     /**

      * Create a popup for the actual field. The popup is configured to appear at the middle of the field.

      *

      * @return The popup configured at the good position.

      */

     private Popup createPopup() {

         return factory.getPopup(

                 owner, content,

                 owner.getLocationOnScreen().x + owner.getWidth() / 2,

                 owner.getLocationOnScreen().y + owner.getHeight() / 2);

     }

     /**

      * Close the current popup.

      */

     void close() {

         SwingUtilities.invokeLater(new Runnable() {

             @Override

             public void run() {

                 popup.hide();

             }

         });

     }

 }