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
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030: * or only the GPL Version 2, indicate your decision by adding
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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 class DynamicPieChartModel extends AbstractPieChartModel {
052: //~ Instance fields ----------------------------------------------------------------------------------------------------------
053:
054: protected Color[] itemColors;
055: protected String[] itemNames;
056: protected double[] itemValues;
057: protected double[] itemValuesRel;
058: protected boolean hasData = false;
059: protected int itemCount = 0;
060:
061: //~ Methods ------------------------------------------------------------------------------------------------------------------
062:
063: public Color getItemColor(int index) {
064: return itemColors[index];
065: }
066:
067: // --- Abstract PieChartModel ------------------------------------------------
068: public int getItemCount() {
069: return itemCount;
070: }
071:
072: public String getItemName(int index) {
073: return itemNames[index];
074: }
075:
076: public double getItemValue(int index) {
077: return itemValues[index];
078: }
079:
080: public double getItemValueRel(int index) {
081: return itemValuesRel[index];
082: }
083:
084: public void setItemValues(double[] itemValues) {
085: if (itemValues.length != itemCount) {
086: hasData = false;
087: throw new RuntimeException("Unexpected number of values."); // NOI18N
088: } else {
089: this .itemValues = itemValues;
090: updateItemValuesRel();
091: }
092:
093: ;
094:
095: fireChartDataChanged();
096: }
097:
098: public boolean isSelectable(int index) {
099: return true;
100: }
101:
102: public boolean hasData() {
103: return hasData;
104: }
105:
106: public void setupModel(String[] itemNames, Color[] itemColors) {
107: this .itemNames = itemNames;
108: this .itemColors = itemColors;
109:
110: if (itemNames.length != itemColors.length) {
111: itemCount = 0;
112: throw new RuntimeException(
113: "Counts of item names and item colors don't match."); // NOI18N
114: } else {
115: itemCount = itemNames.length;
116: }
117:
118: itemValues = null;
119: itemValuesRel = new double[itemCount];
120: hasData = false;
121: }
122:
123: // --- Private Implementation ------------------------------------------------
124:
125: // computes relative item values
126: // O(n) = 2n
127: private void updateItemValuesRel() {
128: double sum = 0d;
129:
130: // compute sum of all item values
131: for (int i = 0; i < itemValues.length; i++) {
132: sum += itemValues[i];
133: }
134:
135: // compute new relative item values
136: if (sum == 0) {
137: for (int i = 0; i < itemValues.length; i++) {
138: itemValuesRel[i] = 0;
139: }
140:
141: hasData = false;
142: } else {
143: for (int i = 0; i < itemValues.length; i++) {
144: itemValuesRel[i] = itemValues[i] / sum;
145: }
146:
147: hasData = true;
148: }
149: }
150: }
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