Application: gvSIG desktop » gvSIG tools: ToolBox

package es.unex.sextante.gui.algorithm;

import java.awt.Component;

import java.awt.event.MouseAdapter;

import java.awt.event.MouseEvent;

import javax.swing.JCheckBox;

import javax.swing.JList;

import javax.swing.ListCellRenderer;

import javax.swing.ListSelectionModel;

import javax.swing.border.Border;

import javax.swing.border.EmptyBorder;

/**

 * A list with checkboxes

 *

 * @author volaya

 *

 */

public class CheckBoxList

         extends

            JList {

   protected static final Border noFocusBorder = new EmptyBorder(1, 1, 1, 1);

   /**

    * Creates a new checkbox list

    */

   public CheckBoxList() {

      setCellRenderer(new CellRenderer());

      addMouseListener(new MouseAdapter() {

         @Override

         public void mousePressed(final MouseEvent e) {

            final int index = locationToIndex(e.getPoint());

            if (index != -1) {

               final JCheckBox checkbox = (JCheckBox) getModel().getElementAt(index);

               checkbox.setSelected(!checkbox.isSelected());

               repaint();

            }

         }

      });

      setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

   }

   protected class CellRenderer

            implements

               ListCellRenderer {

      public Component getListCellRendererComponent(final JList list,

                                                    final Object value,

                                                    final int index,

                                                    final boolean isSelected,

                                                    final boolean cellHasFocus) {

         final JCheckBox checkbox = (JCheckBox) value;

         checkbox.setBackground(getBackground());

         checkbox.setForeground(getForeground());

         checkbox.setEnabled(isEnabled());

         checkbox.setFont(getFont());

         checkbox.setFocusPainted(false);

         checkbox.setBorderPainted(true);

         checkbox.setBorder(noFocusBorder);

         return checkbox;

      }

   }

}