ElementsCellRenderer.java

package org.jtheque.metrics.view.impl.model;

/*
 * Copyright JTheque (Baptiste Wicht)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

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

import java.awt.Component;

/**
 * A cell renderer to display an icon in the JTree.
 *
 * @author Baptiste Wicht
 */
public final class ElementsCellRenderer extends DefaultTreeCellRenderer {
    private static final long serialVersionUID = 7137638623729268796L;

    @Override
    public Component getTreeCellRendererComponent(JTree tree, Object value,
                                                  boolean selected, boolean expanded, boolean leaf, int row, boolean hasFocus) {

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

        if (value instanceof Element) {
            component.setText(((Element) value).getName());
        }

        if (value instanceof Decorated) {
            component.setIcon(((Decorated) value).getIcon());
        }

        return component;
    }
}