001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: * The Original Software is NetBeans. The Initial Developer of the Original
026: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
027: * Microsystems, Inc. All Rights Reserved.
028: *
029: * If you wish your version of this file to be governed by only the CDDL
030: * or only the GPL Version 2, indicate your decision by adding
031: * "[Contributor] elects to include this software in this distribution
032: * under the [CDDL or GPL Version 2] license." If you do not indicate a
033: * single choice of license, a recipient has the option to distribute
034: * your version of this file under either the CDDL, the GPL Version 2 or
035: * to extend the choice of license to its licensees as provided above.
036: * However, if you add GPL Version 2 code and therefore, elected the GPL
037: * Version 2 license, then the option applies only if the new code is
038: * made subject to such option by the copyright holder.
039: */
040:
041: package org.netbeans.lib.profiler.ui.charts;
042:
043: import java.awt.Color;
044: import java.util.Iterator;
045: import java.util.Vector;
046:
047: /**
048: *
049: * @author Jiri Sedlacek
050: */
051: public abstract class AbstractPieChartModel implements PieChartModel {
052: //~ Instance fields ----------------------------------------------------------------------------------------------------------
053:
054: private Vector listeners; // Data change listeners
055:
056: //~ Methods ------------------------------------------------------------------------------------------------------------------
057:
058: public abstract Color getItemColor(int index); // color of item
059:
060: // --- Abstract PieChartModel ------------------------------------------------
061: public abstract int getItemCount(); // number of displayed (processed) items
062:
063: public abstract String getItemName(int index); // name of item
064:
065: public abstract double getItemValue(int index); // value of item
066:
067: public abstract double getItemValueRel(int index); // relative item value (<0, 1>, E(items) = 1)
068:
069: public abstract boolean hasData(); // does the model contain some non-zero item?
070:
071: // --- Listeners -------------------------------------------------------------
072:
073: /**
074: * Adds new ChartModel listener.
075: * @param listener ChartModel listener to add
076: */
077: public synchronized void addChartModelListener(
078: ChartModelListener listener) {
079: if (listeners == null) {
080: listeners = new Vector();
081: }
082:
083: if (!listeners.contains(listener)) {
084: listeners.add(listener);
085: }
086: }
087:
088: /**
089: * Removes ChartModel listener.
090: * @param listener ChartModel listener to remove
091: */
092: public synchronized void removeChartModelListener(
093: ChartModelListener listener) {
094: if (listeners != null) {
095: listeners.remove(listener);
096: }
097: }
098:
099: /**
100: * Notifies all listeners about the data change.
101: */
102: protected void fireChartDataChanged() {
103: if (listeners == null) {
104: return;
105: }
106:
107: Vector toNotify;
108:
109: synchronized (this ) {
110: toNotify = ((Vector) listeners.clone());
111: }
112:
113: Iterator iterator = toNotify.iterator();
114:
115: while (iterator.hasNext()) {
116: ((ChartModelListener) iterator.next()).chartDataChanged();
117: }
118: }
119: }
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