1 /*
   2  * Copyright (c) 2003, 2004, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package sun.swing.plaf.synth;
  26 
  27 import javax.swing.plaf.synth.*;
  28 import java.util.*;
  29 import java.util.regex.*;
  30 
  31 /**
  32  * <b>WARNING:</b> This class is an implementation detail and is only
  33  * public so that it can be used by two packages. You should NOT consider
  34  * this public API.
  35  * <p>
  36  * StyleAssociation is used to lookup a style for a particular
  37  * component (or region).
  38  *
  39  * @author Scott Violet
  40  */
  41 public class StyleAssociation {
  42     /**
  43      * The style
  44      */
  45     private SynthStyle _style;
  46 
  47     /**
  48      * Pattern used for matching.
  49      */
  50     private Pattern _pattern;
  51     /**
  52      * Matcher used for testing if path matches that of pattern.
  53      */
  54     private Matcher _matcher;
  55 
  56     /**
  57      * Identifier for this association.
  58      */
  59     private int _id;
  60 
  61 
  62     /**
  63      * Returns a StyleAssociation that can be used to determine if
  64      * a particular string matches the returned association.
  65      */
  66     public static StyleAssociation createStyleAssociation(
  67         String text, SynthStyle style)
  68         throws PatternSyntaxException {
  69         return createStyleAssociation(text, style, 0);
  70     }
  71 
  72     /**
  73      * Returns a StyleAssociation that can be used to determine if
  74      * a particular string matches the returned association.
  75      */
  76     public static StyleAssociation createStyleAssociation(
  77         String text, SynthStyle style, int id)
  78         throws PatternSyntaxException {
  79         return new StyleAssociation(text, style, id);
  80     }
  81 
  82 
  83     private StyleAssociation(String text, SynthStyle style, int id)
  84                  throws PatternSyntaxException {
  85         _style = style;
  86         _pattern = Pattern.compile(text);
  87         _id = id;
  88     }
  89 
  90     /**
  91      * Returns the developer specified identifier for this association, will
  92      * be <code>0</code> if an identifier was not specified when this
  93      * <code>StyleAssociation</code> was created.
  94      */
  95     public int getID() {
  96         return _id;
  97     }
  98 
  99     /**
 100      * Returns true if this <code>StyleAssociation</code> matches the
 101      * passed in CharSequence.
 102      *
 103      * @return true if this <code>StyleAssociation</code> matches the
 104      * passed in CharSequence.if this StyleAssociation.
 105      */
 106     public synchronized boolean matches(CharSequence path) {
 107         if (_matcher == null) {
 108             _matcher = _pattern.matcher(path);
 109         }
 110         else {
 111             _matcher.reset(path);
 112         }
 113         return _matcher.matches();
 114     }
 115 
 116     /**
 117      * Returns the text used in matching the string.
 118      *
 119      * @return the text used in matching the string.
 120      */
 121     public String getText() {
 122         return _pattern.pattern();
 123     }
 124 
 125     /**
 126      * Returns the style this association is mapped to.
 127      *
 128      * @return the style this association is mapped to.
 129      */
 130     public SynthStyle getStyle() {
 131         return _style;
 132     }
 133 }