|
1
38
39 package org.jfree.chart.demo;
40
41 import java.awt.BasicStroke  ;
42 import java.awt.BorderLayout ;
43 import java.awt.Color ;
44 import java.awt.event.ActionEvent ;
45 import java.awt.event.ActionListener ;
46
47 import javax.swing.JCheckBox ;
48 import javax.swing.JComboBox ;
49 import javax.swing.JLabel ;
50 import javax.swing.JPanel ;
51 import javax.swing.JTextField ;
52
53 import org.jfree.chart.ChartFactory;
54 import org.jfree.chart.ChartPanel;
55 import org.jfree.chart.JFreeChart;
56 import org.jfree.chart.plot.Plot;
57 import org.jfree.chart.plot.PlotOrientation;
58 import org.jfree.chart.plot.XYPlot;
59 import org.jfree.chart.renderer.XYStepAreaRenderer;
60 import org.jfree.data.XYDataset;
61 import org.jfree.data.XYSeries;
62 import org.jfree.data.XYSeriesCollection;
63 import org.jfree.ui.ApplicationFrame;
64 import org.jfree.ui.RefineryUtilities;
65
66
71 public class XYStepAreaChartDemo extends ApplicationFrame implements ActionListener {
72
73
74 private static final String ORIENT_VERT = "Plot vertical";
75
76
77 private static final String ORIENT_HORIZ = "Plot horizontal";
78
79
80 private static final Object [][] TEST_DATA = {
81 {new Integer (1), new Integer (500), Boolean.TRUE},
83 {new Integer (2), new Integer (694)},
84 {new Integer (3), new Integer (-734)},
85 {new Integer (4), new Integer (453)},
86 {new Integer (5), new Integer (500), Boolean.TRUE},
87 {new Integer (6), new Integer (200)},
88 {new Integer (7), new Integer (550), Boolean.TRUE},
89 {new Integer (8), new Integer (-150), Boolean.TRUE},
90 {new Integer (9), new Integer (232)},
91 {new Integer (10), new Integer (734)},
92 {new Integer (11), new Integer (400), Boolean.TRUE},
93 };
94
95
96 private ChartPanel chartPanel;
97
98
99 private XYSeries xySeries;
100
101
102 private JCheckBox nullValuesCheckBox;
103
104
105 private JCheckBox outlineCheckBox;
106
107
108 private JTextField rangeBaseTextField;
109
110
111 private JComboBox orientationComboBox;
112
113
118 public XYStepAreaChartDemo(String title) {
119
120 super(title);
121
122 xySeries = new XYSeries("Some data");
123 for (int i = 0; i < TEST_DATA.length; i++) {
124 xySeries.add((Integer ) TEST_DATA[i][0], (Integer ) TEST_DATA[i][1]);
125 }
126
127 XYSeriesCollection dataset = new XYSeriesCollection(xySeries);
128
129 JFreeChart chart = createChart(dataset);
130
131 chartPanel = new ChartPanel(chart);
132
133 chartPanel.setHorizontalZoom(true);
135 chartPanel.setVerticalZoom(true);
136
137 chartPanel.setPreferredSize(new java.awt.Dimension (500, 270));
139
140 Plot plot = chartPanel.getChart().getPlot();
142 plot.setOutlineStroke(new BasicStroke (2));
143 plot.setOutlinePaint(Color.magenta);
144
145 JPanel main = new JPanel (new BorderLayout ());
147 JPanel optionsPanel = new JPanel ();
148
149 String [] options = {ORIENT_VERT, ORIENT_HORIZ};
150 orientationComboBox = new JComboBox (options);
151 orientationComboBox.addActionListener(this);
152 optionsPanel.add(orientationComboBox);
153
154 outlineCheckBox = new JCheckBox ("Outline");
155 outlineCheckBox.addActionListener(this);
156 optionsPanel.add(outlineCheckBox);
157
158 optionsPanel.add(new JLabel ("Base"));
159 rangeBaseTextField = new JTextField ("0", 5);
160 rangeBaseTextField.addActionListener(this);
161 optionsPanel.add(rangeBaseTextField);
162
163 nullValuesCheckBox = new JCheckBox ("NULL values");
164 nullValuesCheckBox.addActionListener(this);
165 optionsPanel.add(nullValuesCheckBox);
166
167 main.add(optionsPanel, BorderLayout.SOUTH);
168 main.add(chartPanel);
169 setContentPane(main);
170 }
171
172
183
190 private JFreeChart createChart(XYDataset dataset) {
191
192 JFreeChart chart = ChartFactory.createXYStepAreaChart(
193 "XY Step Area Chart Demo",
194 "Domain (X)", "Range (Y)",
195 dataset,
196 PlotOrientation.VERTICAL,
197 true, true, false );
201
202 XYPlot plot = chart.getXYPlot();
204 plot.getRenderer().setSeriesPaint(0, Color.green);
205
206 XYStepAreaRenderer rend = (XYStepAreaRenderer) plot.getRenderer();
208 rend.setShapesFilled(true);
209
210 return chart;
211 }
212
213
218 public void actionPerformed(ActionEvent evt) {
219
220 Object source = evt.getSource();
221
222 if (source == nullValuesCheckBox) {
223
224 boolean withNulls = nullValuesCheckBox.isSelected();
225 for (int i = 0; i < TEST_DATA.length; i++) {
226 Integer yVal = (Integer ) TEST_DATA[i][1];
227 if (withNulls && TEST_DATA[i].length > 2) {
228 yVal = null;
229 }
230 xySeries.getDataItem(i).setY(yVal);
231 }
232
233 }
234 else if (source == outlineCheckBox) {
235
236 XYPlot plot = (XYPlot) chartPanel.getChart().getPlot();
237 ((XYStepAreaRenderer) plot.getRenderer()).setOutline(outlineCheckBox.isSelected());
238
239 }
240 else if (source == rangeBaseTextField) {
241
242 double val = Double.parseDouble(rangeBaseTextField.getText());
243 XYPlot plot = (XYPlot) chartPanel.getChart().getPlot();
244 XYStepAreaRenderer rend = (XYStepAreaRenderer) plot.getRenderer();
245 rend.setRangeBase(val);
246
247 }
248 else if (source == orientationComboBox) {
249
250 XYPlot plot = (XYPlot) chartPanel.getChart().getPlot();
251 if (orientationComboBox.getSelectedItem() == ORIENT_HORIZ) {
252 plot.setOrientation(PlotOrientation.HORIZONTAL);
253 }
254 else if (orientationComboBox.getSelectedItem() == ORIENT_VERT) {
255 plot.setOrientation(PlotOrientation.VERTICAL);
256 }
257 }
258
259 chartPanel.repaint();
260 }
261
262
267 public static void main(String [] args) {
268 XYStepAreaChartDemo demo = new XYStepAreaChartDemo("Step Area XY Chart Demo");
269 demo.pack();
270 RefineryUtilities.centerFrameOnScreen(demo);
271 demo.setVisible(true);
272 }
273 }
274 |
Popular Tags |
Java API By Example, From Geeks To Geeks.