waterfallchartdemo1.java

很好的制作统计图表的代码

// Decompiled by DJ v3.7.7.81 Copyright 2004 Atanas Neshkov  Date: 7/18/2005 5:14:01 PM
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// Decompiler options: packimports(3) 

package org.jfree.chart.demo;

import java.awt.Color;
import java.awt.Dimension;
import java.text.DecimalFormat;
import javax.swing.JPanel;
import org.jfree.chart.*;
import org.jfree.chart.axis.*;
import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.BarRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.*;

public class WaterfallChartDemo1 extends ApplicationFrame
{

    public WaterfallChartDemo1(String s)
    {
        super(s);
        CategoryDataset categorydataset = createDataset();
        JFreeChart jfreechart = createChart(categorydataset);
        ChartPanel chartpanel = new ChartPanel(jfreechart);
        chartpanel.setPreferredSize(new Dimension(500, 270));
        chartpanel.setEnforceFileExtensions(false);
        setContentPane(chartpanel);
    }

    private static CategoryDataset createDataset()
    {
        DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();
        defaultcategorydataset.addValue(15.76D, "Product 1", "Labour");
        defaultcategorydataset.addValue(8.6600000000000001D, "Product 1", "Administration");
        defaultcategorydataset.addValue(4.71D, "Product 1", "Marketing");
        defaultcategorydataset.addValue(3.5099999999999998D, "Product 1", "Distribution");
        defaultcategorydataset.addValue(32.640000000000001D, "Product 1", "Total Expense");
        return defaultcategorydataset;
    }

    private static JFreeChart createChart(CategoryDataset categorydataset)
    {
        JFreeChart jfreechart = ChartFactory.createWaterfallChart("Product Cost Breakdown", "Expense Category", "Cost Per Unit", categorydataset, PlotOrientation.VERTICAL, false, true, false);
        jfreechart.setBackgroundPaint(Color.white);
        CategoryPlot categoryplot = jfreechart.getCategoryPlot();
        categoryplot.setBackgroundPaint(Color.lightGray);
        categoryplot.setRangeGridlinePaint(Color.white);
        categoryplot.setRangeGridlinesVisible(true);
        categoryplot.setAxisOffset(new RectangleInsets(5D, 5D, 5D, 5D));
        ValueAxis valueaxis = categoryplot.getRangeAxis();
        DecimalFormat decimalformat = new DecimalFormat("##,###");
        decimalformat.setNegativePrefix("(");
        decimalformat.setNegativeSuffix(")");
        TickUnits tickunits = new TickUnits();
        tickunits.add(new NumberTickUnit(5D, decimalformat));
        tickunits.add(new NumberTickUnit(10D, decimalformat));
        tickunits.add(new NumberTickUnit(20D, decimalformat));
        tickunits.add(new NumberTickUnit(50D, decimalformat));
        tickunits.add(new NumberTickUnit(100D, decimalformat));
        tickunits.add(new NumberTickUnit(200D, decimalformat));
        tickunits.add(new NumberTickUnit(500D, decimalformat));
        tickunits.add(new NumberTickUnit(1000D, decimalformat));
        tickunits.add(new NumberTickUnit(2000D, decimalformat));
        tickunits.add(new NumberTickUnit(5000D, decimalformat));
        valueaxis.setStandardTickUnits(tickunits);
        BarRenderer barrenderer = (BarRenderer)categoryplot.getRenderer();
        barrenderer.setDrawBarOutline(false);
        DecimalFormat decimalformat1 = new DecimalFormat("$##,###.00");
        decimalformat1.setNegativePrefix("(");
        decimalformat1.setNegativeSuffix(")");
        barrenderer.setItemLabelGenerator(new StandardCategoryItemLabelGenerator("{2}", decimalformat1));
        barrenderer.setItemLabelsVisible(true);
        return jfreechart;
    }

    public static JPanel createDemoPanel()
    {
        return new ChartPanel(createChart(createDataset()));
    }

    public static void main(String args[])
    {
        WaterfallChartDemo1 waterfallchartdemo1 = new WaterfallChartDemo1("Waterfall Chart Demo");
        waterfallchartdemo1.pack();
        RefineryUtilities.centerFrameOnScreen(waterfallchartdemo1);
        waterfallchartdemo1.setVisible(true);
    }
}