/* * Copyright (c) 1998, 2023, Oracle and/or its affiliates. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of Oracle nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ import java.util.Date; import java.util.ResourceBundle; import java.awt.EventQueue; import java.awt.Graphics; import java.awt.event.KeyEvent; import javax.swing.JComponent; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTextArea; import javax.swing.SwingUtilities; /** * This test is mean to isolate the speed of the JTextArea * It creates a JTextArea and then continuously appends text * to that string. */ public class TextAreaTest extends AbstractSwingTest { JTextArea textArea1; final int repeat = 300; final int breakIncrement = 12; String DISPLAY_STRING = "Swing is Fast! "; public JComponent getTestComponent() { loadBundle(); JPanel panel = new JPanel(); textArea1 = new CountTextArea(10, 30); textArea1.setLineWrap(true); JScrollPane scroller = new JScrollPane(textArea1); if (SwingMark.useBlitScrolling) { scroller.getViewport().putClientProperty("EnableWindowBlit", Boolean.TRUE); } panel.add(scroller); return panel; } public String getTestName() { return "TextArea"; } public void runTest() { testTextArea(textArea1, DISPLAY_STRING); } private void loadBundle() { ResourceBundle bundle = ResourceBundle.getBundle("resources.TextAreaTest"); DISPLAY_STRING = bundle.getString("DisplayString"); } public void testTextArea(JTextArea currentTextArea, String appendThis) { TextAppender appender = new TextAppender(currentTextArea, appendThis); for (int i = 0; i < repeat; i++) { appender.appendString = appendThis; if ( i % breakIncrement == breakIncrement -1) { appender.appendString = appendThis + "\n"; } try { SwingUtilities.invokeLater(appender); rest(); } catch (Exception e) {System.out.println(e);} } } public static void main(String[] args) { runStandAloneTest(new TextAreaTest()); } class CountTextArea extends JTextArea { public CountTextArea(int h, int w) { super(h, w); } public void paint(Graphics g) { super.paint(g); paintCount++; } } } class TextAppender implements Runnable { JTextArea area; String appendString; public TextAppender(JTextArea textArea, String appendThis) { area = textArea; appendString = appendThis; } public void run() { area.append(appendString); } }