javax.help.plaf.basic.BasicIndexCellRenderer Maven / Gradle / Ivy

/*
 * @(#) BasicIndexCellRenderer.java 1.20 - last change made 08/24/01
 *
 * Copyright (c) 1997 Sun Microsystems, Inc. All Rights Reserved.
 *
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 *
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */

package javax.help.plaf.basic;

import javax.help.*;
import javax.swing.tree.*;
import javax.swing.JTree;
import java.awt.Component;
import java.util.Locale;

/**
 * Cell Renderer for the index UI.
 *
 * @author Roger D. Brinkley
 * @author Eduardo Pelegri-Llopart
 * @author Stepan Marek
 * @version   %I     08/24/01
 */
public class BasicIndexCellRenderer extends DefaultTreeCellRenderer {
    
    /**
      * Configures the renderer based on the passed in components.
      * The value is set from messaging the tree with
      * convertValueToText, which ultimately invokes
      * toString on value.
      * The foreground color is set based on the selection and the icon
      * is set based on on leaf and expanded.
      */
    public Component getTreeCellRendererComponent(JTree tree,
                                                  Object value,
						  boolean sel,
						  boolean expanded,
						  boolean leaf, int row,
						  boolean hasFocus) {

        // variable hasFocus was private to DefaultTreeCellRenderer since jdk1.3
        try {
            this.hasFocus = hasFocus;
        } catch (IllegalAccessError e) {
        }
        
    	IndexItem item
	    = (IndexItem) ((DefaultMutableTreeNode) value).getUserObject();

	String stringValue = "";

	if (item != null) {
	    stringValue = item.getName();
	}

        setText(stringValue);
        if (sel)
            setForeground(getTextSelectionColor());
        else
            setForeground(getTextNonSelectionColor());

        setIcon(null);
        
        selected = sel;

	// Set the locale of this if there is a lang value
	if (item != null) {
	    Locale locale = item.getLocale();
	    if (locale != null) {
		setLocale(locale);
	    }
	}

	return this;
    }
    
}