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16 package org.pentaho.plugin.jfreereport.reportcharts;
17
18 import java.awt.Font  ;
19 import java.text.DecimalFormat ;
20 import java.text.SimpleDateFormat ;
21 import java.util.ArrayList ;
22 import java.util.List ;
23
24 import org.jfree.chart.JFreeChart;
25 import org.jfree.chart.axis.CategoryAxis;
26 import org.jfree.chart.axis.CategoryLabelPositions;
27 import org.jfree.chart.axis.ValueAxis;
28 import org.jfree.chart.labels.ItemLabelPosition;
29 import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
30 import org.jfree.chart.plot.CategoryPlot;
31 import org.jfree.chart.renderer.category.AbstractCategoryItemRenderer;
32 import org.jfree.chart.renderer.category.CategoryItemRenderer;
33 import org.jfree.data.category.CategoryDataset;
34 import org.jfree.util.Log;
35 import org.pentaho.core.session.IPentahoSession;
36 import org.pentaho.messages.Messages;
37
38
44 public abstract class CategoricalChartExpression extends AbstractChartExpression {
45 private static final long serialVersionUID = -402500824047401239L;
46
47 private String valueAxisLabel;
48
49 private String categoryAxisLabel;
50
51 private boolean horizontal;
52
53 private boolean showGridLines = true;
54
55 private Double labelRotation;
56
57 private List seriesColors = new ArrayList ();
58
59 private Float maxCategoryLabelWidthRatio;
60
61 private String categoricalLabelFormat;
62
63 private String categoricalLabelDecimalFormat;
64
65 private String categoricalLabelDateFormat;
66
67 private Double categoricalItemLabelRotation;
68
69 public CategoricalChartExpression() {
70 super();
71 }
72
73 public CategoricalChartExpression(IPentahoSession session) {
74 super(session);
75 }
76
77
84
85 public void setSeriesColor(int index, String color) {
86 if (seriesColors.size() == index) {
87 seriesColors.add(color);
88 } else {
89 seriesColors.set(index, color);
90 }
91 }
92
93 public List getSeriesColors() {
94 return seriesColors;
95 }
96
97 public Double getLabelRotation() {
98 return labelRotation;
99 }
100
101 public void setLabelRotation(Double value) {
102 labelRotation = value;
103 }
104
105 public Double getCategoricalItemLabelRotation() {
106 return this.categoricalItemLabelRotation;
107 }
108
109 public void setCategoricalItemLabelRotation(Double value) {
110 this.categoricalItemLabelRotation = value;
111 }
112
113 public void setMaxCategoryLabelWidthRatio(Float value) {
114 maxCategoryLabelWidthRatio = value;
115 }
116
117 public Float getMaxCategoryLabelWidthRatio() {
118 return maxCategoryLabelWidthRatio;
119 }
120
121 public boolean isShowGridlines() {
122 return showGridLines;
123 }
124
125 public void setShowGridlines(boolean value) {
126 showGridLines = value;
127 }
128
129 public boolean isHorizontal() {
130 return horizontal;
131 }
132
133 public void setHorizontal(boolean value) {
134 horizontal = value;
135 }
136
137 public String getValueAxisLabel() {
138 return valueAxisLabel;
139 }
140
141 public void setValueAxisLabel(final String valueAxisLabel) {
142 this.valueAxisLabel = valueAxisLabel;
143 }
144
145 public String getCategoryAxisLabel() {
146 return categoryAxisLabel;
147 }
148
149 public void setCategoryAxisLabel(final String categoryAxisLabel) {
150 this.categoryAxisLabel = categoryAxisLabel;
151 }
152
153 public void setCategoricalLabelFormat(final String value) {
154 this.categoricalLabelFormat = value;
155 }
156
157 public String getCategoricalLabelFormat() {
158 return this.categoricalLabelFormat;
159 }
160
161 public void setCategoricalLabelDecimalFormat(final String value) {
162 this.categoricalLabelDecimalFormat = value;
163 }
164
165 public String getCategoricalLabelDecimalFormat() {
166 return this.categoricalLabelDecimalFormat;
167 }
168
169 public void setCategoricalLabelDateFormat(final String value) {
170 this.categoricalLabelDateFormat = value;
171 }
172
173 public String getCategoricalLabelDateFormat() {
174 return this.categoricalLabelDateFormat;
175 }
176
177 public abstract JFreeChart getChart(CategoryDataset categoryDataset);
178
179 public Object getValue() {
180 final Object maybeCategoryDataset = getDataRow().get(getDataSource());
181 if (maybeCategoryDataset instanceof CategoryDataset == false) {
182 Log.debug(Messages.getString("CATEGORICALCHARTEXPRESSION.USER_NOT_A_DATASET")); return null;
184 }
185
186 CategoryDataset categoryDataset = (CategoryDataset) maybeCategoryDataset;
187 final Integer row = new Integer (getRuntime().getCurrentRow());
188 final Object o = getChartFromCache(row);
189 JFreeChart chart = null;
190 if (o != null) {
191 chart = (JFreeChart) o;
192 } else {
193 chart = getChart(categoryDataset);
194 putChartInCache(chart, row);
195 }
196
197 setChartProperties(chart);
198 return getValue(chart);
199
200 }
201
202 protected void setChartProperties(JFreeChart chart) {
203 super.setChartProperties(chart);
204
205 CategoryPlot cpl = chart.getCategoryPlot();
206 CategoryAxis axis = cpl.getDomainAxis();
207 CategoryItemRenderer renderer = cpl.getRenderer();
208
209 if (this.categoricalLabelFormat != null) {
210 StandardCategoryItemLabelGenerator scilg = null;
211 if (categoricalLabelDecimalFormat != null) {
212 scilg = new StandardCategoryItemLabelGenerator(categoricalLabelFormat, new DecimalFormat (categoricalLabelDecimalFormat));
213 } else if (categoricalLabelDateFormat != null) {
214 scilg = new StandardCategoryItemLabelGenerator(categoricalLabelFormat, new SimpleDateFormat (categoricalLabelDateFormat));
215 } else {
216 scilg = new StandardCategoryItemLabelGenerator(categoricalLabelFormat, new DecimalFormat ());
217 }
218 renderer.setItemLabelGenerator(scilg);
219 renderer.setItemLabelsVisible(true);
220 if (categoricalItemLabelRotation != null) {
221 ItemLabelPosition posn = renderer.getPositiveItemLabelPosition();
222 ItemLabelPosition pos2 = new ItemLabelPosition(posn.getItemLabelAnchor(), posn.getTextAnchor(), posn.getRotationAnchor(), categoricalItemLabelRotation.doubleValue());
223 renderer.setPositiveItemLabelPosition(pos2);
224 }
225
226 }
227
228 Font lFont = Font.decode(getLabelFont());
229 axis.setLabelFont(lFont);
230 ValueAxis rAxis = cpl.getRangeAxis();
231 if (rAxis != null) {
232 rAxis.setLabelFont(lFont);
233 }
234 axis.setTickLabelFont(lFont);
235 if (maxCategoryLabelWidthRatio != null) {
236 axis.setMaximumCategoryLabelWidthRatio(maxCategoryLabelWidthRatio.floatValue());
237 }
238 cpl.setDomainGridlinesVisible(showGridLines);
239 if (labelRotation != null) {
240 axis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / labelRotation.doubleValue()));
241 }
242 AbstractCategoryItemRenderer acir = (AbstractCategoryItemRenderer) renderer;
243
244 for (int i = 0; i < seriesColors.size(); i++) {
245 acir.setSeriesPaint(i, getColorFromString((String ) seriesColors.get(i)));
246 }
247
248 }
249
250 }
251 |
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