org.eclipse.jface.viewers.TreeColumnViewerLabelProvider.java Source code

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Here is the source code for org.eclipse.jface.viewers.TreeColumnViewerLabelProvider.java

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/*******************************************************************************
 * Copyright (c) 2006, 2015 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
 *******************************************************************************/

package org.eclipse.jface.viewers;

/**
 * TreeViewerLabelProvider is the ViewerLabelProvider that handles TreePaths.
 *
 * @since 3.3
 *
 */
public class TreeColumnViewerLabelProvider extends TableColumnViewerLabelProvider {
    private ITreePathLabelProvider treePathProvider = new ITreePathLabelProvider() {

        @Override
        public void updateLabel(ViewerLabel label, TreePath elementPath) {
            // Do nothing by default

        }

        @Override
        public void dispose() {
            // Do nothing by default

        }

        @Override
        public void addListener(ILabelProviderListener listener) {
            // Do nothing by default

        }

        @Override
        public void removeListener(ILabelProviderListener listener) {
            // Do nothing by default

        }

        @Override
        public boolean isLabelProperty(Object element, String property) {
            return false;
        }

    };

    /**
     * Create a new instance of the receiver with the supplied labelProvider.
     *
     * @param labelProvider the label provider
     */
    public TreeColumnViewerLabelProvider(IBaseLabelProvider labelProvider) {
        super(labelProvider);
    }

    /**
     * Update the label for the element with TreePath.
     *
     * @param label       the label to update
     * @param elementPath the path of the element being decorated
     */
    public void updateLabel(ViewerLabel label, TreePath elementPath) {
        treePathProvider.updateLabel(label, elementPath);

    }

    @Override
    public void setProviders(Object provider) {
        super.setProviders(provider);
        if (provider instanceof ITreePathLabelProvider)
            treePathProvider = (ITreePathLabelProvider) provider;
    }

    /**
     * Return the ITreePathLabelProvider for the receiver.
     *
     * @return Returns the treePathProvider.
     */
    public ITreePathLabelProvider getTreePathProvider() {
        return treePathProvider;
    }

}