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/*
* Copyright (c) 2017, 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
* @bug 8187957
* @summary Verifies Tab Size works correctly in JTextArea
* @key headful
* @run main TestTabSize
*/
import java.awt.geom.Rectangle2D;
import javax.swing.GroupLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.text.BadLocationException;
import javax.swing.text.Caret;
public class TestTabSize {
private static JScrollPane jScrollPane1;
private static JTextArea jTextArea1;
private static JFrame f;
private static Rectangle2D rect;
private static Rectangle2D rect1;
private static boolean excpnthrown = false;
public static void main(String args[]) throws Exception {
SwingUtilities.invokeAndWait(() -> {
try {
jScrollPane1 = new javax.swing.JScrollPane();
jTextArea1 = new javax.swing.JTextArea();
jTextArea1.setTabSize(8);
f = new JFrame();
jTextArea1.setFont(new java.awt.Font("Monospaced", 0, 10));
String str =
"!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#\n"
+ "! Some Text\t\t\t\t\t#";
jTextArea1.setText(str);
jScrollPane1.setViewportView(jTextArea1);
GroupLayout layout = new javax.swing.GroupLayout(f.getContentPane());
f.getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1,
javax.swing.GroupLayout.DEFAULT_SIZE,
446, Short.MAX_VALUE)
.addContainerGap())
);
layout.setVerticalGroup(
layout.createParallelGroup(
javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jScrollPane1)
.addContainerGap())
);
f.pack();
int first = str.indexOf("#");
jTextArea1.setCaretPosition(first);
Caret caret = jTextArea1.getCaret();
rect = jTextArea1.modelToView2D(caret.getDot());
System.out.println("caret x position " + rect.getX());
jTextArea1.setCaretPosition(str.indexOf("#", first+1));
caret = jTextArea1.getCaret();
rect1 = jTextArea1.modelToView2D(caret.getDot());
System.out.println("2nd caret x position " + rect1.getX());
} catch (BadLocationException ex) {
excpnthrown = true;
} finally {
if (f != null) {
f.dispose();
}
}
});
if (excpnthrown) {
throw new RuntimeException("BadLocationException thrown");
}
if ((int)rect.getX() != (int)rect1.getX()) {
throw new RuntimeException("Tab width calculation wrong");
}
}
}
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