tests/org.eclipse.swt.tests.gtk/ManualTests/org/eclipse/swt/tests/gtk/snippets/Bug197785_TextSelectionBehavior.java

/*******************************************************************************
 * Copyright (c) 2018 Red Hat 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:
 *     Red Hat - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.tests.gtk.snippets;

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.*;

public class Bug197785_TextSelectionBehavior
{
	public static void main(String[] args)
	{

		final Display display = new Display();
		final Shell shell = new Shell(display);
		final Text text = new Text(shell, SWT.V_SCROLL | SWT.MULTI);
		text.setText("1\n2\n3\n4\n5\n6\n7\n8\n9\n10");
		text.setBounds(5, 5, 50, 50);
		Text text1 = new Text(shell, SWT.None);
		text1.setBounds(5, 100, 50, 50);

		Button b = new Button(shell, SWT.PUSH);
		b.setText("Push me");
		b.setBounds(5, 200, 50, 20);
		b.addListener(SWT.Selection, new Listener(){
			@Override
		public void handleEvent(Event e)
			{
			
				text.setSelection(10, 20);
				String test = "11\n12\n13\n14\n15";
				System.out.println(test);
				text.insert(test);
				// Alternative to try:
//        	widget.text.setSelection(0, text1.getCharCount());
				System.out.println("Caret line number " + text.getCaretLineNumber());
				System.out.println("Caret position " + text.getCaretPosition());

			}
		});

		shell.pack();
		shell.open();
		while (!shell.isDisposed())
		{
			if (!display.readAndDispatch())
				display.sleep();
		}
		display.dispose();

	}

}