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1
13 package org.pentaho.plugin.jfreereport.reportcharts;
14
15 import java.util.ArrayList  ;
16 import java.util.List ;
17
18 import org.jfree.chart.ChartFactory;
19 import org.jfree.chart.JFreeChart;
20 import org.jfree.chart.labels.StandardPieSectionLabelGenerator;
21 import org.jfree.chart.plot.MultiplePiePlot;
22 import org.jfree.chart.plot.PiePlot;
23 import org.jfree.chart.plot.Plot;
24 import org.jfree.data.category.CategoryDataset;
25 import org.jfree.util.Log;
26 import org.jfree.util.TableOrder;
27 import org.pentaho.core.session.IPentahoSession;
28 import org.pentaho.messages.Messages;
29
30 public class MultiPieChartExpression extends AbstractChartExpression {
31
32 private static final long serialVersionUID = -7796999107015376070L;
33
34 private boolean multipieByRow = true;
35
36 private String multipieLabelFormat = StandardPieSectionLabelGenerator.DEFAULT_SECTION_LABEL_FORMAT;
37
38 private List seriesColors = new ArrayList ();
39
40 protected MultiPieChartExpression() {
41 super();
42 }
43
44 protected MultiPieChartExpression(IPentahoSession session) {
45 super(session);
46 }
48
49 public String getMultipieLabelFormat() {
50 return multipieLabelFormat;
51 }
52
53 public void setMultipieLabelFormat(String value) {
54 multipieLabelFormat = value;
55 }
56
57 public boolean isMultipieByRow() {
58 return multipieByRow;
59 }
60
61 public void setMultipieByRow(boolean value) {
62 multipieByRow = value;
63 }
64
65 public void setSeriesColor(int index, String color) {
66 if (seriesColors.size() == index) {
67 seriesColors.add(color);
68 } else {
69 seriesColors.set(index, color);
70 }
71 }
72
73 public List getSeriesColors() {
74 return seriesColors;
75 }
76
77 public JFreeChart getChart(CategoryDataset categoryDataset) {
78 JFreeChart rtn = null;
79 if (isThreeD()) {
80 rtn = ChartFactory.createMultiplePieChart3D(getTitle(), categoryDataset, isMultipieByRow() ? TableOrder.BY_ROW : TableOrder.BY_COLUMN, isShowLegend(), false, false);
81 } else {
82 rtn = ChartFactory.createMultiplePieChart(getTitle(), categoryDataset, isMultipieByRow() ? TableOrder.BY_ROW : TableOrder.BY_COLUMN, isShowLegend(), false, false);
83 }
84 return rtn;
85 }
86
87 public Object getValue() {
88 final Object maybeCategoryDataset = getDataRow().get(getDataSource());
89 if (maybeCategoryDataset instanceof CategoryDataset == false) {
90 Log.debug(Messages.getString("CATEGORICALCHARTEXPRESSION.USER_NOT_A_DATASET")); return null;
92 }
93
94 CategoryDataset categoryDataset = (CategoryDataset) maybeCategoryDataset;
95
96 final Integer row = new Integer (getRuntime().getCurrentRow());
97 final Object o = getChartFromCache(row);
98 JFreeChart chart = null;
99 if (o != null) {
100 chart = (JFreeChart) o;
101 } else {
102 chart = getChart(categoryDataset);
103 putChartInCache(chart, row);
104 }
105
106 setChartProperties(chart);
107
108 return getValue(chart);
109 }
110
111 protected void setChartProperties(JFreeChart chart) {
112 super.setChartProperties(chart);
113
114 Plot plot = chart.getPlot();
115 MultiplePiePlot mpp = (MultiplePiePlot) plot;
116 JFreeChart pc = mpp.getPieChart();
117 PiePlot pp = (PiePlot) pc.getPlot();
118 for (int i = 0; i < getSeriesColors().size(); i++) {
119 pp.setSectionPaint(i, getColorFromString((String ) getSeriesColors().get(i)));
120 }
121
122 if (!multipieLabelFormat.equals(StandardPieSectionLabelGenerator.DEFAULT_SECTION_LABEL_FORMAT)) {
123 StandardPieSectionLabelGenerator labelGen = new StandardPieSectionLabelGenerator(multipieLabelFormat);
124 pp.setLabelGenerator(labelGen);
125 }
126 }
127 }
128 |
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