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.value;
052:
053: import org.w3c.dom.DOMException;
054: import org.w3c.dom.css.CSSValue;
055:
056: /**
057: * This class represents a list of values.
058: *
059: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
060: * @version $Id$
061: */
062: public class ListValue extends AbstractValue {
063:
064: /**
065: * The length of the list.
066: */
067: protected int length;
068:
069: /**
070: * The items.
071: */
072: protected Value[] items = new Value[5];
073:
074: /**
075: * The list separator.
076: */
077: protected char separator = ',';
078:
079: /**
080: * Creates a ListValue.
081: */
082: public ListValue() {
083: }
084:
085: /**
086: * Creates a ListValue with the given separator.
087: */
088: public ListValue(char s) {
089: separator = s;
090: }
091:
092: /**
093: * Returns the separator used for this list.
094: */
095: public char getSeparatorChar() {
096: return separator;
097: }
098:
099: /**
100: * Implements {@link Value#getCssValueType()}.
101: */
102: public short getCssValueType() {
103: return CSSValue.CSS_VALUE_LIST;
104: }
105:
106: /**
107: * A string representation of the current value.
108: */
109: public String getCssText() {
110: StringBuffer sb = new StringBuffer();
111: if (length > 0) {
112: sb.append(items[0].getCssText());
113: }
114: for (int i = 1; i < length; i++) {
115: sb.append(separator);
116: sb.append(items[i].getCssText());
117: }
118: return sb.toString();
119: }
120:
121: /**
122: * Implements {@link Value#getLength()}.
123: */
124: public int getLength() throws DOMException {
125: return length;
126: }
127:
128: /**
129: * Implements {@link Value#item(int)}.
130: */
131: public Value item(int index) throws DOMException {
132: return items[index];
133: }
134:
135: /**
136: * Returns a printable representation of this value.
137: */
138: public String toString() {
139: return getCssText();
140: }
141:
142: /**
143: * Appends an item to the list.
144: */
145: public void append(Value v) {
146: if (length == items.length) {
147: Value[] t = new Value[length * 2];
148: for (int i = 0; i < length; i++) {
149: t[i] = items[i];
150: }
151: items = t;
152: }
153: items[length++] = v;
154: }
155: }
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