001: /*
002:
003: ============================================================================
004: The Apache Software License, Version 1.1
005: ============================================================================
006:
007: Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
008:
009: Redistribution and use in source and binary forms, with or without modifica-
010: tion, are permitted provided that the following conditions are met:
011:
012: 1. Redistributions of source code must retain the above copyright notice,
013: this list of conditions and the following disclaimer.
014:
015: 2. Redistributions in binary form must reproduce the above copyright notice,
016: this list of conditions and the following disclaimer in the documentation
017: and/or other materials provided with the distribution.
018:
019: 3. The end-user documentation included with the redistribution, if any, must
020: include the following acknowledgment: "This product includes software
021: developed by the Apache Software Foundation (http://www.apache.org/)."
022: Alternately, this acknowledgment may appear in the software itself, if
023: and wherever such third-party acknowledgments normally appear.
024:
025: 4. The names "Batik" and "Apache Software Foundation" must not be
026: used to endorse or promote products derived from this software without
027: prior written permission. For written permission, please contact
028: apache@apache.org.
029:
030: 5. Products derived from this software may not be called "Apache", nor may
031: "Apache" appear in their name, without prior written permission of the
032: Apache Software Foundation.
033:
034: THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
035: INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
036: FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
037: APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
038: INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
039: DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
040: OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
041: ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
042: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
043: THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
044:
045: This software consists of voluntary contributions made by many individuals
046: on behalf of the Apache Software Foundation. For more information on the
047: Apache Software Foundation, please see <http://www.apache.org/>.
048:
049: */
050:
051: package org.apache.batik.css.engine.sac;
052:
053: import org.w3c.css.sac.DescendantSelector;
054: import org.w3c.css.sac.Selector;
055: import org.w3c.css.sac.SimpleSelector;
056:
057: /**
058: * This class provides an abstract implementation of the {@link
059: * org.w3c.css.sac.DescendantSelector} interface.
060: *
061: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
062: * @version $Id$
063: */
064: public abstract class AbstractDescendantSelector implements
065: DescendantSelector, ExtendedSelector {
066:
067: /**
068: * The ancestor selector.
069: */
070: protected Selector ancestorSelector;
071:
072: /**
073: * The simple selector.
074: */
075: protected SimpleSelector simpleSelector;
076:
077: /**
078: * Creates a new DescendantSelector object.
079: */
080: protected AbstractDescendantSelector(Selector ancestor,
081: SimpleSelector simple) {
082: ancestorSelector = ancestor;
083: simpleSelector = simple;
084: }
085:
086: /**
087: * Indicates whether some other object is "equal to" this one.
088: * @param obj the reference object with which to compare.
089: */
090: public boolean equals(Object obj) {
091: if (obj == null || !(obj.getClass() != getClass())) {
092: return false;
093: }
094: AbstractDescendantSelector s = (AbstractDescendantSelector) obj;
095: return s.simpleSelector.equals(simpleSelector);
096: }
097:
098: /**
099: * Returns the specificity of this selector.
100: */
101: public int getSpecificity() {
102: return ((ExtendedSelector) ancestorSelector).getSpecificity()
103: + ((ExtendedSelector) simpleSelector).getSpecificity();
104: }
105:
106: /**
107: * <b>SAC</b>: Implements {@link
108: * org.w3c.css.sac.DescendantSelector#getAncestorSelector()}.
109: */
110: public Selector getAncestorSelector() {
111: return ancestorSelector;
112: }
113:
114: /**
115: * <b>SAC</b>: Implements {@link
116: * org.w3c.css.sac.DescendantSelector#getSimpleSelector()}.
117: */
118: public SimpleSelector getSimpleSelector() {
119: return simpleSelector;
120: }
121:
122: // BEGIN RAVE MODIFICATIONS
123: public void setRule(org.apache.batik.css.engine.Rule rule) {
124: this .rule = rule;
125: }
126:
127: public org.apache.batik.css.engine.Rule getRule() {
128: return rule;
129: }
130:
131: private org.apache.batik.css.engine.Rule rule;
132: // END RAVE MODIFICATIONS
133: }
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