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/*
* Copyright (c) 2000, 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 4341196
* @summary Tests that TextArea can handle more than 64K of text
* @library /java/awt/regtesthelpers
* @build PassFailJFrame
* @run main/manual TextAreaLimit
*/
public class TextAreaLimit extends Frame {
static TextArea text;
private static final String INSTRUCTIONS = """
You will see a text area with 40000 lines of text
each with its own line number. If you see the caret after line 39999
then test passes. Otherwise it fails.
""";
public static void main(String[] args) throws Exception {
PassFailJFrame.builder()
.title("TextAreaLimit")
.instructions(INSTRUCTIONS)
.rows((int) INSTRUCTIONS.lines().count() + 2)
.columns(40)
.testUI(TextAreaLimit::new)
.build()
.awaitAndCheck();
}
public TextAreaLimit() {
setLayout(new BorderLayout());
text = new TextArea();
add(text);
StringBuffer buf = new StringBuffer();
for (int i = 0; i < 40000; i++) {
buf.append(i + "\n");
}
text.setText(buf.toString());
text.setCaretPosition(buf.length());
text.requestFocus();
setSize(200, 200);
}
}
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