1 /*

     2  * Copyright (c) 2008 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 

    24 /*

    25  * @test

    26  * @bug 4396492 4396496 4778510

    27  * @summary verify that the embedding values processed by the bidi code use negative values to

    28  * indicate overrides, rather than using bit 7.  Also tests Bidi without loading awt classes to

    29  * confirm that Bidi can be used without awt. Verify that embedding level 0 is properly mapped

    30  * to the base embedding level.

    31  */

    32 

    33 import java.awt.Color;

    34 import java.awt.Frame;

    35 import java.awt.font.TextAttribute;

    36 import java.text.AttributedString;

    37 import java.text.Bidi;

    38 

    39 public class BidiEmbeddingTest {

    40     public static void main(String[] args) {

    41         // to regress embedding test against old fix, call with an arg.  A window will pop

    42         // up causing awt lib to be loaded so the vm won't die with the unsatisfied link error.

    43         if (args.length > 0) {

    44             Frame f = new Frame();

    45             f.setSize(300, 300);

    46             f.setBackground(Color.white);

    47             f.show();

    48         }

    49 

    50         test1();

    51         test2();

    52     }

    53 

    54     static void test1() {

    55         String target = "BACK WARDS";

    56         String str = "If this text is >" + target + "< the test passed.";

    57         int start = str.indexOf(target);

    58         int limit = start + target.length();

    59 

    60         System.out.println("start: " + start + " limit: " + limit);

    61 

    62         AttributedString astr = new AttributedString(str);

    63         astr.addAttribute(TextAttribute.BIDI_EMBEDDING,

    64                          new Integer(-1),

    65                          start,

    66                          limit);

    67 

    68         Bidi bidi = new Bidi(astr.getIterator());

    69 

    70         for (int i = 0; i < bidi.getRunCount(); ++i) {

    71             System.out.println("run " + i +

    72                                " from " + bidi.getRunStart(i) +

    73                                " to " + bidi.getRunLimit(i) +

    74                                " at level " + bidi.getRunLevel(i));

    75         }

    76 

    77         System.out.println(bidi);

    78 

    79         byte[] embs = new byte[str.length() + 3];

    80         for (int i = start + 1; i < limit + 1; ++i) {

    81             embs[i] = -1;

    82         }

    83 

    84         Bidi bidi2 = new Bidi(str.toCharArray(), 0, embs, 1, str.length(), Bidi.DIRECTION_DEFAULT_LEFT_TO_RIGHT);

    85         for (int i = 0; i < bidi2.getRunCount(); ++i) {

    86             System.out.println("run " + i +

    87                                " from " + bidi2.getRunStart(i) +

    88                                " to " + bidi2.getRunLimit(i) +

    89                                " at level " + bidi2.getRunLevel(i));

    90         }

    91 

    92         System.out.println(bidi2);

    93 

    94         if (bidi.getRunCount() != 3 || bidi2.getRunCount() != 3) {

    95             throw new Error("Bidi run count incorrect");

    96         }

    97     }

    98 

    99     // make sure BIDI_EMBEDDING values of 0 are mapped to base run direction, instead of flagging an error.

   100     static void test2() {

   101         String target = "BACK WARDS";

   102         String str = "If this text is >" + target + "< the test passed.";

   103         int length = str.length();

   104         int start = str.indexOf(target);

   105         int limit = start + target.length();

   106 

   107         System.out.println("start: " + start + " limit: " + limit);

   108 

   109         AttributedString astr = new AttributedString(str);

   110         astr.addAttribute(TextAttribute.RUN_DIRECTION, TextAttribute.RUN_DIRECTION_RTL);

   111 

   112         astr.addAttribute(TextAttribute.BIDI_EMBEDDING,

   113                          new Integer(-3),

   114                          start,

   115                          limit);

   116 

   117         Bidi bidi = new Bidi(astr.getIterator());

   118 

   119         for (int i = 0; i < bidi.getRunCount(); ++i) {

   120             System.out.println("run " + i +

   121                                " from " + bidi.getRunStart(i) +

   122                                " to " + bidi.getRunLimit(i) +

   123                                " at level " + bidi.getRunLevel(i));

   124         }

   125 

   126         System.out.println(bidi);

   127 

   128         if (bidi.getRunCount() != 6) { // runs of spaces and angles at embedding bound,s and final period, each get level 1

   129             throw new Error("Bidi embedding processing failed");

   130         }

   131     }

   132 }