/* * Copyright (c) 2004, 2024, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ import java.awt.BorderLayout; import java.awt.Frame; import java.awt.TextArea; /* * @test * @bug 6192116 * @summary Auto-scrolling does not work properly for TextArea when appending some text, on XToolkit * @library /java/awt/regtesthelpers * @build PassFailJFrame * @run main/manual TextAreaAppendScrollTest2 */ public class TextAreaAppendScrollTest2 extends Frame { TextArea area; private static final String INSTRUCTIONS = """ Press pass if you see exclamation marks in the bottom of textarea. Press fail if you don't. """; public static void main(String[] args) throws Exception { PassFailJFrame.builder() .title("TextAreaAppendScrollTest2") .instructions(INSTRUCTIONS) .rows((int) INSTRUCTIONS.lines().count() + 2) .columns(40) .testUI(TextAreaAppendScrollTest2::new) .build() .awaitAndCheck(); } public TextAreaAppendScrollTest2() { setLayout(new BorderLayout()); area = new TextArea("AWT is cool ", 3, 3, TextArea.SCROLLBARS_NONE); add("Center", area); setSize(200, 200); StringBuilder coolStr = new StringBuilder(""); // I count 15 lines with 12 cools per line for (int i = 0; i < 12 * 15; i++) { coolStr.append("cool "); } coolStr.append("!!!!!!!"); area.append(coolStr.toString()); } }