| /* |
| * 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"); |
| } |
| } |
| } |