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| 1 | +/* |
| 2 | + * Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved. |
| 3 | + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | + * |
| 5 | + * This code is free software; you can redistribute it and/or modify it |
| 6 | + * under the terms of the GNU General Public License version 2 only, as |
| 7 | + * published by the Free Software Foundation. |
| 8 | + * |
| 9 | + * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | + * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | + * accompanied this code). |
| 14 | + * |
| 15 | + * You should have received a copy of the GNU General Public License version |
| 16 | + * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | + * |
| 19 | + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | + * or visit www.oracle.com if you need additional information or have any |
| 21 | + * questions. |
| 22 | + */ |
| 23 | + |
| 24 | +/** |
| 25 | + * @test |
| 26 | + * @bug 8239334 |
| 27 | + * @summary Verifies Tab Size works correctly in JTextArea with setLineWrap on |
| 28 | + * @key headful |
| 29 | + * @run main TestTabSizeWithLineWrap |
| 30 | + */ |
| 31 | + |
| 32 | +import java.awt.geom.Rectangle2D; |
| 33 | +import javax.swing.GroupLayout; |
| 34 | +import javax.swing.JFrame; |
| 35 | +import javax.swing.JScrollPane; |
| 36 | +import javax.swing.JTextArea; |
| 37 | +import javax.swing.SwingUtilities; |
| 38 | +import javax.swing.text.BadLocationException; |
| 39 | +import javax.swing.text.Caret; |
| 40 | + |
| 41 | +public class TestTabSizeWithLineWrap { |
| 42 | + private static JScrollPane jScrollPane1; |
| 43 | + private static JTextArea jTextArea1; |
| 44 | + private static JFrame f; |
| 45 | + private static Rectangle2D rect; |
| 46 | + private static Rectangle2D rect1; |
| 47 | + private static boolean excpnthrown = false; |
| 48 | + |
| 49 | + public static void main(String args[]) throws Exception { |
| 50 | + |
| 51 | + SwingUtilities.invokeAndWait(() -> { |
| 52 | + try { |
| 53 | + jScrollPane1 = new JScrollPane(); |
| 54 | + jTextArea1 = new JTextArea(); |
| 55 | + jTextArea1.setTabSize(8); |
| 56 | + f = new JFrame(); |
| 57 | + |
| 58 | + jTextArea1.setFont(new java.awt.Font("Monospaced", 0, 10)); |
| 59 | + jTextArea1.setLineWrap( true ); |
| 60 | + String str = |
| 61 | + "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!#\n" |
| 62 | + + "! Some Text\t\t\t\t\t#"; |
| 63 | + jTextArea1.setText(str); |
| 64 | + jScrollPane1.setViewportView(jTextArea1); |
| 65 | + |
| 66 | + GroupLayout layout = new javax.swing.GroupLayout(f.getContentPane()); |
| 67 | + f.getContentPane().setLayout(layout); |
| 68 | + layout.setHorizontalGroup( |
| 69 | + layout.createParallelGroup( |
| 70 | + javax.swing.GroupLayout.Alignment.LEADING) |
| 71 | + .addGroup(layout.createSequentialGroup() |
| 72 | + .addContainerGap() |
| 73 | + .addComponent(jScrollPane1, |
| 74 | + javax.swing.GroupLayout.DEFAULT_SIZE, |
| 75 | + 446, Short.MAX_VALUE) |
| 76 | + .addContainerGap()) |
| 77 | + ); |
| 78 | + layout.setVerticalGroup( |
| 79 | + layout.createParallelGroup( |
| 80 | + javax.swing.GroupLayout.Alignment.LEADING) |
| 81 | + .addGroup(layout.createSequentialGroup() |
| 82 | + .addContainerGap() |
| 83 | + .addComponent(jScrollPane1) |
| 84 | + .addContainerGap()) |
| 85 | + ); |
| 86 | + |
| 87 | + f.pack(); |
| 88 | + int first = str.indexOf("#"); |
| 89 | + jTextArea1.setCaretPosition(first); |
| 90 | + Caret caret = jTextArea1.getCaret(); |
| 91 | + rect = jTextArea1.modelToView2D(caret.getDot()); |
| 92 | + System.out.println("caret x position " + rect.getX()); |
| 93 | + |
| 94 | + jTextArea1.setCaretPosition(str.indexOf("#", first+1)); |
| 95 | + caret = jTextArea1.getCaret(); |
| 96 | + rect1 = jTextArea1.modelToView2D(caret.getDot()); |
| 97 | + System.out.println("2nd caret x position " + rect1.getX()); |
| 98 | + |
| 99 | + } catch (BadLocationException ex) { |
| 100 | + excpnthrown = true; |
| 101 | + } finally { |
| 102 | + if (f != null) { |
| 103 | + f.dispose(); |
| 104 | + } |
| 105 | + } |
| 106 | + }); |
| 107 | + if (excpnthrown) { |
| 108 | + throw new RuntimeException("BadLocationException thrown"); |
| 109 | + } |
| 110 | + if ((int)rect.getX() != (int)rect1.getX()) { |
| 111 | + throw new RuntimeException("Tab width calculation wrong"); |
| 112 | + } |
| 113 | + } |
| 114 | +} |
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