/*

     dsh-identify  Lightweight components for identifiable beans.

     Copyright (c) 2003-2019 held jointly by the individual authors.

     This library 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 3 of the License, or (at

     your option) any later version.

     This library is distributed in the hope that it will be useful, but WITHOUT

     ANY WARRANTY; with out 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 library;  if not, write to the Free Software Foundation,

     Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.

     > http://www.fsf.org/licensing/licenses/lgpl.html

     > http://www.opensource.org/licenses/lgpl-license.php

 */

 package org.dishevelled.identify;

 import java.awt.Component;

 import java.awt.Color;

 import javax.swing.DefaultListCellRenderer;

 import javax.swing.JLabel;

 import javax.swing.JList;

 import javax.swing.UIManager;

 /**

  * Stripe list cell renderer.

  *

  * @since 1.2

  * @author  Michael Heuer

  */

 public class StripeListCellRenderer extends DefaultListCellRenderer {

     /** Background color for odd rows. */

     private Color oddRowBackgroundColor = DEFAULT_ODD_ROW_BACKGROUND_COLOR;

     /** Default background color for odd rows, <code>2a5703, 5% alpha</code>. */

     public static final Color DEFAULT_ODD_ROW_BACKGROUND_COLOR = new Color(42, 87, 3, 12); // 2a5703, 5% alpha

     /**

      * Return the background color for odd rows. Defaults to DEFAULT_ODD_ROW_BACKGROUND_COLOR.

      *

      * @return the background color for odd rows

      */

     public final Color getOddRowBackgroundColor()

     {

         return oddRowBackgroundColor;

     }

     /**

      * Set the background color for odd rows to <code>oddRowBackgroundColor</code>.

      *

      * <p>This is a bound property.</p>

      *

      * @param oddRowBackgroundColor background color for odd rows, must not be null

      */

     public final void setOddRowBackgroundColor(final Color oddRowBackgroundColor)

     {

         if (oddRowBackgroundColor == null)

         {

             throw new IllegalArgumentException("oddRowBackgroundColor must not be null");

         }

         Color oldOddRowBackgroundColor = this.oddRowBackgroundColor;

         this.oddRowBackgroundColor = oddRowBackgroundColor;

         firePropertyChange("oddRowBackgroundColor", oldOddRowBackgroundColor, this.oddRowBackgroundColor);

     }

     @Override

     public Component getListCellRendererComponent(final JList list, final Object value, final int index, boolean isSelected, boolean hasFocus)

     {

         JLabel label = (JLabel) super.getListCellRendererComponent(list, value, index, isSelected, hasFocus);

         if (isSelected)

         {

             label.setForeground(UIManager.getColor("List.selectionForeground"));

             label.setBackground(UIManager.getColor("List.selectionBackground"));

         }

         else

         {

             label.setForeground(UIManager.getColor("List.foreground"));

             if (index % 2 == 1)

             {

                 label.setBackground(oddRowBackgroundColor);

             }

             else

             {

                 label.setBackground(UIManager.getColor("List.background"));

             }

         }

         return label;

     }

     /**

      * Install a stripe list cell renderer for the specified list.

      *

      * @param <T> list element type

      * @param list list, must not be null

      */

     public static <T> void install(final JList<T> list)

     {

         if (list == null)

         {

             throw new IllegalArgumentException("list must not be null");

         }

         StripeListCellRenderer renderer = new StripeListCellRenderer();

         list.setCellRenderer(renderer);

     }

 }