/* * Copyright (c) 2019, 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. */ /* @test * @key headful * @bug 8212904 * @summary Verifies JTextArea line wrapping using UI scale * @run main JTextAreaWordWrapTest */ import java.awt.BorderLayout; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import java.io.IOException; import java.net.URISyntaxException; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.ScrollPaneConstants; import javax.swing.SwingUtilities; public class JTextAreaWordWrapTest { static JFrame frame; static JFrame frame1; static JTextArea textArea; static JTextArea textArea1; public static void doWrapOnTest() { frame = new JFrame(); frame.setSize( 720, 300 ); frame.setLayout( new BorderLayout() ); textArea = new JTextArea(); textArea.setLineWrap( true ); textArea.setWrapStyleWord( true ); StringBuffer sb = new StringBuffer(); for (int i = 0; i < 100; i++) { sb.append( "zz zzz zzzz zz zz zz zzz xzzzz zzzzzzzzzzzzzzzzx yyyyyyy tttttttttt sssss hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\n" ); } textArea.setText( sb.toString() ); JScrollPane pane = new JScrollPane( textArea, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED ); frame.add( pane, BorderLayout.CENTER ); frame.setVisible( true ); } public static void doWrapOffTest() { frame1 = new JFrame(); frame1.setSize( 720, 300 ); frame1.setLayout( new BorderLayout() ); textArea1 = new JTextArea(); StringBuffer sb1 = new StringBuffer(); for (int i = 0; i < 100; i++) { sb1.append( "zz zzz zzzz zz zz zz zzz xzzzz zzzzzzzzzzzzzzzzx yyyyyyy tttttttttt sssss hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh\n" ); } textArea1.setText( sb1.toString() ); JScrollPane pane1 = new JScrollPane( textArea1, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED ); frame1.add( pane1, BorderLayout.CENTER ); frame1.setLocationRelativeTo(null); frame1.setVisible( true ); } public static void main( String[] args ) throws Exception { System.setProperty( "sun.java2d.uiScale", "1.25" ); try { SwingUtilities.invokeAndWait(() -> doWrapOnTest()); Thread.sleep(500); SwingUtilities.invokeAndWait(() -> doWrapOffTest()); Thread.sleep(500); SwingUtilities.invokeAndWait(() -> { int wraponHeight = textArea.getHeight(); System.out.println("wraponheight " + wraponHeight); int wrapoffHeight = textArea1.getHeight(); System.out.println("wrapoffheight " + wrapoffHeight); if (wraponHeight == wrapoffHeight) { throw new RuntimeException("JTextArea line wrapping incorrect when using UI scale"); } }); } finally { SwingUtilities.invokeAndWait(() -> frame.dispose()); SwingUtilities.invokeAndWait(() -> frame1.dispose()); } } }