/*
 * Copyright (c) 2007 BUSINESS OBJECTS SOFTWARE LIMITED
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 *     * Redistributions of source code must retain the above copyright notice,
 *       this list of conditions and the following disclaimer.
 *  
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *  
 *     * Neither the name of Business Objects nor the names of its contributors
 *       may be used to endorse or promote products derived from this software
 *       without specific prior written permission.
 *  
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */


/*
 * DefaultHighlightTreeCellRenderer.java
 * Creation date: Jun 8, 2004.
 * By: Edward Lam
 */
package org.openquark.util.ui;

import java.awt.Color;
import java.awt.Component;

import javax.swing.JTree;
import javax.swing.tree.DefaultTreeCellRenderer;

import org.openquark.util.General;


/**
 * The default tree cell renderer for the highlight tree.
 * @author Edward Lam
 */
public class DefaultHighlightTreeCellRenderer extends DefaultTreeCellRenderer {
    private static final long serialVersionUID = 1058997751715786410L;

    /**
     * @see javax.swing.tree.TreeCellRenderer#getTreeCellRendererComponent(JTree, Object, boolean, boolean, boolean, int, boolean)
     */
    @Override
    public Component getTreeCellRendererComponent (JTree tree,
                                                   Object value,
                                                   boolean selected,
                                                   boolean expanded,
                                                   boolean leaf,
                                                   int row,
                                                   boolean hasFocus) {

        super.getTreeCellRendererComponent(tree, value, selected, expanded, leaf, row, hasFocus);

        // Set to transparent.
        setOpaque(false);

        // Create a transparent colour for the non-selection background.
        Color backColour = getBackgroundNonSelectionColor();
        if (backColour == null) {
            backColour = getBackground();
        }

        if (backColour != null) {
            Color nonSelectionColour = General.makeTransparentColour(backColour, 127);
            setBackgroundNonSelectionColor(nonSelectionColour);
        }

        return this;
    }
}