org.eclipse.birt.report.designer.testutil.ViewerUnti.java Source code

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Here is the source code for org.eclipse.birt.report.designer.testutil.ViewerUnti.java

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/*******************************************************************************
 * Copyright (c) 2004 Actuate Corporation.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *  Actuate Corporation  - initial API and implementation
 *******************************************************************************/

package org.eclipse.birt.report.designer.testutil;

import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;

/**
 * Viewer utility
 * 
 * 
 *  
 */
public class ViewerUnti {

    /**
     * View Tree
     * 
     * @param treeViewer
     *            the tree viewer to display
     */
    public static void viewTree(TreeViewer treeViewer) {
        viewTree(treeViewer.getTree());
    }

    /**
     * View Tree
     * 
     * @param tree
     *            the tree to display
     */
    public static void viewTree(Tree tree) {
        viewTree(tree.getItems()[0]);
    }

    /**
     * View Tree
     * 
     * @param root
     *            the tree item to display
     */

    public static void viewTree(TreeItem root) {
        viewTree(root, root);
    }

    private static void viewTree(TreeItem item, TreeItem root) {
        if (item.getItemCount() != 0) {
            if (item == root) {
                System.err.println();
            }
            if (item.getExpanded()) {
                TreeItem[] ti = item.getItems();
                System.err.println("-" //$NON-NLS-1$
                        + item.getText() + "(" + ti.length + ")"); //$NON-NLS-1$ //$NON-NLS-2$
                for (int i = 0; i < ti.length; i++) {
                    String out = ""; //$NON-NLS-1$
                    TreeItem parent = item;
                    while (parent != root) {
                        TreeItem[] tp = parent.getParentItem().getItems();
                        if (parent != tp[tp.length - 1]) {
                            out = " \u2502" + out; //$NON-NLS-1$
                        } else {
                            out = "  " + out; //$NON-NLS-1$
                        }
                        parent = parent.getParentItem();
                    }
                    if (i == item.getItemCount() - 1) {
                        out += " \u2514"; //$NON-NLS-1$
                    } else {
                        out += " \u251C"; //$NON-NLS-1$
                    }

                    System.err.print(out);
                    viewTree(ti[i], root);
                }
            } else
                System.err.println("+" + item.getText() + "(?)"); //$NON-NLS-1$ //$NON-NLS-2$
        } else
            System.err.println(item.getText());
    }
}