CreateTreeWithcolumns.java Source code

Introduction

Here is the source code for CreateTreeWithcolumns.java

Source

/*
 * Create a Tree with columns
 * 
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */

import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeColumn;
import org.eclipse.swt.widgets.TreeItem;

public class CreateTreeWithcolumns {
    public static void main(String[] args) {
        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setLayout(new FillLayout());
        Tree tree = new Tree(shell, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
        tree.setHeaderVisible(true);
        TreeColumn column1 = new TreeColumn(tree, SWT.LEFT);
        column1.setText("Column 1");
        column1.setWidth(200);
        TreeColumn column2 = new TreeColumn(tree, SWT.CENTER);
        column2.setText("Column 2");
        column2.setWidth(200);
        TreeColumn column3 = new TreeColumn(tree, SWT.RIGHT);
        column3.setText("Column 3");
        column3.setWidth(200);
        for (int i = 0; i < 4; i++) {
            TreeItem item = new TreeItem(tree, SWT.NONE);
            item.setText(new String[] { "item " + i, "abc", "defghi" });
            for (int j = 0; j < 4; j++) {
                TreeItem subItem = new TreeItem(item, SWT.NONE);
                subItem.setText(new String[] { "subitem " + j, "jklmnop", "qrs" });
                for (int k = 0; k < 4; k++) {
                    TreeItem subsubItem = new TreeItem(subItem, SWT.NONE);
                    subsubItem.setText(new String[] { "subsubitem " + k, "tuv", "wxyz" });
                }
            }
        }
        shell.pack();
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch()) {
                display.sleep();
            }
        }
        display.dispose();
    }
}