/**
*JFreeChart 柱状图显示设置
(1）当只有少数几个柱子的时候也可以显示的宽度适中
(2)设置每个柱子的颜色，柱子顶端显示数据
(3)消除柱状图输出的图片的字体的锯齿
(4)显示100%这条突出的线
*
**/
import java.awt.Color;import java.awt.Font;import java.awt.FontFormatException;import java.awt.RenderingHints;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.IOException;import java.text.DecimalFormat;import java.util.List;import org.apache.log4j.Logger;import org.jfree.chart.ChartColor;import org.jfree.chart.ChartFactory;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.NumberAxis;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.chart.title.LegendTitle;import org.jfree.chart.title.TextTitle;import org.jfree.data.category.DefaultCategoryDataset;import com.statestr.eta.server.bean.MainReportBean;public class ExportBar{private static Logger logger = Logger.getLogger(ExportBar.class);private List<MainReportBean> mainReportBeanInfoList;private DecimalFormat numberformat1 = new DecimalFormat("###%");private DecimalFormat numberformat2 = new DecimalFormat("###%");private String fontPath ;public ExportBar(List<MainReportBean> mainReportBeanInfoList,String path){this.mainReportBeanInfoList = mainReportBeanInfoList;this.fontPath = path ;}// wrap data to DefaultCategoryDatasetpublic DefaultCategoryDataset copeWithData(){DefaultCategoryDataset categoryDataset = new DefaultCategoryDataset();int rowLength = mainReportBeanInfoList.size();for (int i = 0; i < rowLength; i++){MainReportBean mb = mainReportBeanInfoList.get(i);categoryDataset.setValue(mb.getEarnedValue() / 100, "Earned Value", mb.getProjectName()); // value// E,A,B// proNamecategoryDataset.setValue(mb.getActualCost(), "Actual Cost", mb.getProjectName());categoryDataset.setValue(mb.getBudgetedCost(), "Budgeted Cost", mb.getProjectName());}return categoryDataset;}public void configFont(JFreeChart chart, Double maxData){//chart.setBorderVisible(false) ;chart.setBorderPaint(ChartColor.RED) ;CategoryPlot plot = chart.getCategoryPlot();BarRenderer render = (BarRenderer) plot.getRenderer();plot.setBackgroundPaint(ChartColor.WHITE) ;plot.setRangeGridlinePaint(new Color(167,192,222)) ;//set 100% rangeAxis lineplot.setRangeCrosshairValue(1d) ;plot.setRangeCrosshairPaint(ChartColor.RED) ;plot.setRangeCrosshairVisible(true) ;//create fontFont Titlefont = null ;// new Font("Tahoma",Font.BOLD,13) ;Font plainFont = null ;// new Font("Tahoma",Font.PLAIN,12) ;try{//create chart title fontFileInputStream fileInTitle = new FileInputStream(fontPath+"\\CALIBRIB.TTF") ;Font fontTitle = Font.createFont(Font.TRUETYPE_FONT, fileInTitle) ;Titlefont = fontTitle.deriveFont(16f) ;//create chart plain fontFileInputStream fileInPlain = new FileInputStream(fontPath+"\\CALIBRI.TTF") ;Font fontPlain = Font.createFont(Font.TRUETYPE_FONT, fileInPlain) ;plainFont = fontPlain.deriveFont(12f) ;}catch (FileNotFoundException e){e.printStackTrace();}catch (FontFormatException e){e.printStackTrace();}catch (IOException e){e.printStackTrace();}//set title styleTextTitle textTitle = chart.getTitle() ;textTitle.setFont(Titlefont) ; //textTitle.setMargin(10, 0, 10, 0) ;//set legend styleLegendTitle legend = chart.getLegend();// legend.setPosition(RectangleEdge.RIGHT) ;legend.setBorder(0, 0, 0, 0);legend.setItemFont(plainFont); //new Font("Calibri", Font.PLAIN, 12)legend.setMargin(10, 0, 10, 0) ;//legend.setPosition(RectangleEdge.RIGHT);//set CategoryAxis styleCategoryAxis domainAxis = plot.getDomainAxis();domainAxis.setTickLabelPaint(Color.BLACK);domainAxis.setTickLabelFont(plainFont) ; //sans-serifdomainAxis.setMaximumCategoryLabelWidthRatio(1.5f) ;//domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45);domainAxis.setCategoryMargin(0.15) ;domainAxis.setTickMarkPaint(Color.red);domainAxis.setTickMarkInsideLength((float) 0.1) ;domainAxis.setTickMarkOutsideLength((float)0.2) ;domainAxis.setTickMarksVisible(true) ;int length = mainReportBeanInfoList.size() ;if(length ==1){domainAxis.setLowerMargin(0.26) ;domainAxis.setUpperMargin(0.56) ;}else if(length<6){double margin = (1.0-length*0.08)/3 ;domainAxis.setLowerMargin(margin) ;domainAxis.setUpperMargin(margin) ;}//domainAxis.setTickLabelsVisible(true) ;//domainAxis.setTickLabelPaint(ChartColor.BLUE) ;// bar marginrender.setItemMargin(0.0);render.setSeriesPaint(0, new Color(0, 176, 80));render.setSeriesPaint(1, new Color(255, 192, 0));render.setSeriesPaint(2, new Color(85, 142, 213));// set bar column show numberrender.setBaseItemLabelGenerator(new StandardCategoryItemLabelGenerator("{2}", numberformat2));// formatrender.setBaseItemLabelsVisible(true);render.setBaseItemLabelFont(plainFont);// render.setBasePositiveItemLabelPosition(new// ItemLabelPosition(ItemLabelAnchor.OUTSIDE12,TextAnchor.BOTTOM_LEFT,TextAnchor.HALF_ASCENT_LEFT,-0.57D))// ;render.setMaximumBarWidth(0.2);NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();rangeAxis.setNumberFormatOverride(numberformat1);rangeAxis.setTickLabelFont(plainFont) ;rangeAxis.setTickMarksVisible(false) ;if (maxData >= 1){rangeAxis.setRange(0, maxData * (1 + 0.1));}else{rangeAxis.setRange(0, 1);}//rangeAxis.setUpperMargin(0.1);}// create jfreechartpublic JFreeChart create_bar_chart(String title){JFreeChart barChart = ChartFactory.createBarChart(title, null, null, copeWithData(), PlotOrientation.VERTICAL, true, true,false);double maxData = getMaxData(mainReportBeanInfoList);configFont(barChart, maxData);barChart.setBackgroundPaint(ChartColor.WHITE) ;barChart.getRenderingHints().put(RenderingHints.KEY_TEXT_ANTIALIASING,RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);//barChart.setAntiAlias(true) ;barChart.setTextAntiAlias(true) ;return barChart;}// get max data from list mainReportBeanInfoListpublic double getMaxData(List<MainReportBean> mainReportBeanInfos){double maxActual = 0;double maxBudge = 0;double maxEarned = 0;for (int i = 0, size = mainReportBeanInfos.size(); i < size; i++){maxActual = Math.max(maxActual, mainReportBeanInfos.get(i).getActualCost());maxBudge = Math.max(maxBudge, mainReportBeanInfos.get(i).getBudgetedCost());maxEarned = Math.max(maxEarned, (mainReportBeanInfos.get(i).getEarnedValue() / 100));}double temp = Math.max(maxEarned, maxBudge);logger.info("get max data from list is:" + Math.max(temp, maxActual));return (Math.max(temp, maxActual));}}
