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;
052:
053: import org.apache.batik.css.engine.value.Value;
054:
055: /**
056: * This class represents a collection of CSS property values.
057: *
058: * @author <a href="mailto:stephane@hillion.org">Stephane Hillion</a>
059: * @version $Id$
060: */
061: public class StyleDeclaration {
062:
063: protected final static int INITIAL_LENGTH = 8;
064:
065: /**
066: * The values.
067: */
068: protected Value[] values = new Value[INITIAL_LENGTH];
069:
070: /**
071: * The value indexes.
072: */
073: protected int[] indexes = new int[INITIAL_LENGTH];
074:
075: /**
076: * The value priorities.
077: */
078: protected boolean[] priorities = new boolean[INITIAL_LENGTH];
079:
080: /**
081: * The number of values in the declaration.
082: */
083: protected int count;
084:
085: /**
086: * Returns the number of values in the declaration.
087: */
088: public int size() {
089: return count;
090: }
091:
092: /**
093: * Returns the value at the given index.
094: */
095: public Value getValue(int idx) {
096: return values[idx];
097: }
098:
099: /**
100: * Returns the property index of a value.
101: */
102: public int getIndex(int idx) {
103: return indexes[idx];
104: }
105:
106: /**
107: * Tells whether a value is important.
108: */
109: public boolean getPriority(int idx) {
110: return priorities[idx];
111: }
112:
113: /**
114: * Removes the value at the given index.
115: */
116: public void remove(int idx) {
117: count--;
118: for (int i = idx; i < count; i++) {
119: values[i] = values[i + 1];
120: indexes[i] = indexes[i + 1];
121: priorities[i] = priorities[i + 1];
122: }
123: }
124:
125: /**
126: * Sets a value within the declaration.
127: */
128: public void put(int idx, Value v, int i, boolean prio) {
129: values[idx] = v;
130: indexes[idx] = i;
131: priorities[idx] = prio;
132: }
133:
134: /**
135: * Appends a value to the declaration.
136: */
137: public void append(Value v, int idx, boolean prio) {
138: if (values.length == count) {
139: Value[] newval = new Value[count * 2];
140: int[] newidx = new int[count * 2];
141: boolean[] newprio = new boolean[count * 2];
142: for (int i = 0; i < count; i++) {
143: newval[i] = values[i];
144: newidx[i] = indexes[i];
145: newprio[i] = priorities[i];
146: }
147: values = newval;
148: indexes = newidx;
149: priorities = newprio;
150: }
151: values[count] = v;
152: indexes[count] = idx;
153: priorities[count] = prio;
154: count++;
155: }
156:
157: /**
158: * Returns a printable representation of this style rule.
159: */
160: public String toString(CSSEngine eng) {
161: StringBuffer sb = new StringBuffer();
162: for (int i = 0; i < count; i++) {
163: sb.append(eng.getPropertyName(indexes[i]));
164: sb.append(": ");
165: sb.append(values[i]);
166: sb.append(";\n");
167: }
168: return sb.toString();
169: }
170: }
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