?? xybarchartdemo5.java
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/* --------------------
* XYBarChartDemo1.java
* --------------------
* (C) Copyright 2002-2004, by Object Refinery Limited.
*
*/
package demo;
import java.awt.Color;
import java.awt.Font;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.DateAxis;
import org.jfree.chart.axis.DateTickMarkPosition;
import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.title.TextTitle;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;
import org.jfree.data.xy.IntervalXYDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.HorizontalAlignment;
import org.jfree.ui.RectangleEdge;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a bar chart using
* an {@link XYPlot}.
*/
public class XYBarChartDemo5 extends ApplicationFrame {
/**
* Constructs the demo application.
*
* @param title the frame title.
*/
public XYBarChartDemo5(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 300));
setContentPane(chartPanel);
}
private static JFreeChart createChart(IntervalXYDataset dataset) {
JFreeChart chart = ChartFactory.createXYBarChart(
"US Budget Deficit",
"Year",
true,
"$ Billion",
dataset,
PlotOrientation.VERTICAL,
false,
false,
false
);
// then customise it a little...
TextTitle source = new TextTitle("Source: http://www.cbo.gov/showdoc.cfm?index=1821&sequence=0#table12");
source.setFont(new Font("Dialog", Font.PLAIN, 8));
source.setPosition(RectangleEdge.BOTTOM);
source.setHorizontalAlignment(HorizontalAlignment.RIGHT);
chart.addSubtitle(source);
chart.setBackgroundPaint(Color.white);
XYPlot plot = chart.getXYPlot();
XYItemRenderer renderer = plot.getRenderer();
StandardXYToolTipGenerator generator = new StandardXYToolTipGenerator(
"{1} = {2}",
new SimpleDateFormat("yyyy"), new DecimalFormat("0"));
renderer.setToolTipGenerator(generator);
plot.setBackgroundPaint(Color.lightGray);
plot.setRangeGridlinePaint(Color.white);
DateAxis axis = (DateAxis) plot.getDomainAxis();
axis.setTickMarkPosition(DateTickMarkPosition.MIDDLE);
axis.setLowerMargin(0.01);
axis.setUpperMargin(0.01);
return chart;
}
/**
* Creates a sample dataset.
*/
private static IntervalXYDataset createDataset() {
TimeSeries t1 = new TimeSeries("Budget", "Year", "$ Million",
Year.class);
try {
t1.add(new Year(1980), -74);
t1.add(new Year(1981), -79);
t1.add(new Year(1982), -128);
t1.add(new Year(1983), -208);
t1.add(new Year(1984), -185);
t1.add(new Year(1985), -212);
t1.add(new Year(1986), -221);
t1.add(new Year(1987), -150);
t1.add(new Year(1988), -155);
t1.add(new Year(1989), -153);
t1.add(new Year(1990), -221);
t1.add(new Year(1991), -269);
t1.add(new Year(1992), -290);
t1.add(new Year(1993), -255);
t1.add(new Year(1994), -203);
t1.add(new Year(1995), -164);
t1.add(new Year(1996), -107);
t1.add(new Year(1997), -22);
t1.add(new Year(1998), 69);
t1.add(new Year(1999), 126);
t1.add(new Year(2000), 236);
t1.add(new Year(2001), 128);
t1.add(new Year(2002), -158);
t1.add(new Year(2003), -378);
t1.add(new Year(2004), -412);
}
catch (Exception e) {
System.err.println(e.getMessage());
}
TimeSeriesCollection tsc = new TimeSeriesCollection(t1);
return tsc;
}
/**
* Creates a panel for the demo.
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
return new ChartPanel(createChart(createDataset()));
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
XYBarChartDemo5 demo = new XYBarChartDemo5("US Budget Deficit");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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