鼠标拖拽

public class TimeSeriesTest extends ApplicationFrame implements ChartMouseListener, MouseListener, MouseMotionListener{
   private static final long serialVersionUID = 1L;
   private JFreeChart chart;
   private ChartPanel chartPanel;
   private boolean domainCrosshairState;
   private XYItemEntity xyItemEntity;
   private boolean isDraged;
  
   public TimeSeriesTest(String str){
      super(str);
      XYDataset localXYDataset = createDataset();
      chart = createChart(localXYDataset);
      chartPanel = new ChartPanel(chart);
      chartPanel.setPreferredSize(new Dimension(800, 500));
      // chartPanel.setMouseZoomable(true, false);
      chartPanel.setMouseZoomable(false);
      chartPanel.addChartMouseListener(this);
      chartPanel.addMouseListener(this);
      chartPanel.addMouseMotionListener(this);

      domainCrosshairState = false;
      isDraged = false;
      setContentPane(chartPanel);
   }

   private static XYDataset createDataset(){
      Day localDay = new Day();
      TimeSeries localTimeSeries1 = new TimeSeries("随机数据", Hour.class);
      localTimeSeries1.add(new Hour(0, localDay), 520.2D);
      localTimeSeries1.add(new Hour(2, localDay), 575.1D);
      localTimeSeries1.add(new Hour(4, localDay), 564.4D);
      localTimeSeries1.add(new Hour(6, localDay), 540.2D);
      localTimeSeries1.add(new Hour(8, localDay), 530.2D);
      localTimeSeries1.add(new Hour(10, localDay), 555.2D);
      localTimeSeries1.add(new Hour(12, localDay), 580.4D);
      localTimeSeries1.add(new Hour(14, localDay), 583.2D);
      localTimeSeries1.add(new Hour(16, localDay), 595.2D);
      localTimeSeries1.add(new Hour(18, localDay), 564.4D);
      localTimeSeries1.add(new Hour(20, localDay), 523.2D);
      localTimeSeries1.add(new Hour(22, localDay), 515.2D);
      localTimeSeries1.add(new Hour(24, localDay), 530.4D);

      TimeSeries localTimeSeries2 = new TimeSeries("随机数据", Hour.class);
      localTimeSeries2.add(new Hour(0, localDay), 620.2D);
      localTimeSeries2.add(new Hour(2, localDay), 654.1D);
      localTimeSeries2.add(new Hour(4, localDay), 664.4D);
      localTimeSeries2.add(new Hour(6, localDay), 670.2D);
      localTimeSeries2.add(new Hour(8, localDay), 690.2D);
      localTimeSeries2.add(new Hour(10, localDay), 695.2D);
      localTimeSeries2.add(new Hour(12, localDay), 680.4D);
      localTimeSeries2.add(new Hour(14, localDay), 683.2D);
      localTimeSeries2.add(new Hour(16, localDay), 695.2D);
      localTimeSeries2.add(new Hour(18, localDay), 714.4D);
      localTimeSeries2.add(new Hour(20, localDay), 723.2D);
      localTimeSeries2.add(new Hour(22, localDay), 715.2D);
      localTimeSeries2.add(new Hour(24, localDay), 680.4D);

      TimeSeriesCollection localTimeSeriesCollection = new TimeSeriesCollection();
      localTimeSeriesCollection.addSeries(localTimeSeries1);
      localTimeSeriesCollection.addSeries(localTimeSeries2);

      return localTimeSeriesCollection;

   }

   private static JFreeChart createChart(XYDataset xyDataset){
      JFreeChart localChart = ChartFactory.createTimeSeriesChart("时间序列测试", "时间", "数值", xyDataset, true, true, false);
      TextTitle title = localChart.getTitle();
      title.setFont(new Font("宋体", Font.BOLD, 24));
      LegendTitle legend = localChart.getLegend();
      legend.setItemFont(new Font("宋体", Font.ITALIC, 14));

      XYPlot plot = (XYPlot)localChart.getPlot();
      plot.setBackgroundPaint(null);

      // X 轴
      DateAxis xAxis = (DateAxis)plot.getDomainAxis();
      xAxis.setLabelFont(new Font("宋体", Font.PLAIN, 18));
      xAxis.setLabelPaint(Color.BLUE);
      SimpleDateFormat fmt = new SimpleDateFormat("k:mm");
      xAxis.setTickUnit(new DateTickUnit(DateTickUnit.HOUR, 2, fmt));

      // Y 轴
      ValueAxis yAxis = plot.getRangeAxis();
      yAxis.setLabelFont(new Font("宋体", Font.PLAIN, 18));
      yAxis.setLabelPaint(Color.BLUE);

      return localChart;
   }

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

   public void chartMouseClicked(ChartMouseEvent e){
      if(e.getTrigger().getClickCount() == 2){
         domainCrosshairState = !domainCrosshairState;
         // plot.setDomainCrosshairVisible(domainCrosshairState);
         chartPanel.setHorizontalAxisTrace(domainCrosshairState); // 双击竖线
      }
     
      xyItemEntity = (XYItemEntity)e.getEntity();
      if(xyItemEntity == null) return;
      int seriesIndex = xyItemEntity.getSeriesIndex();

      XYPlot xyPlot = (XYPlot)chart.getPlot();
      XYLineAndShapeRenderer xyLineAndShapeRenderer = (XYLineAndShapeRenderer)xyPlot.getRenderer();
      for(int index = 0; index < xyItemEntity.getDataset().getSeriesCount(); index++){
         xyLineAndShapeRenderer.setSeriesShapesVisible(index, false);
      }
      xyLineAndShapeRenderer.setSeriesShapesVisible(seriesIndex, true); // 数据点可见
     
   }

   public void mousePressed(MouseEvent e){
      // System.out.println("mouse key is pressed!");
  
   }

   public void mouseReleased(MouseEvent e){
      // System.out.println("mouse key is released!");
      xyItemEntity = null;
      isDraged = false;
  
   }

   public void mouseEntered(MouseEvent mouseEvent){
      // System.out.println( "mouse key is pressed!");

   }

   public void mouseExited(MouseEvent mouseEvent){
      // System.out.println( "mouse key is pressed!");

   }

   public void mouseClicked(MouseEvent mouseEvent){
      // System.out.println( "mouse key is pressed!");

   }

   public void chartMouseMoved(ChartMouseEvent e){

   }

   public void mouseDragged(MouseEvent e){

      if(xyItemEntity==null) return;
      int seriesIndex = xyItemEntity.getSeriesIndex();
      int itemIndex = xyItemEntity.getItem();
     
      int xPos = e.getX();
      int yPos = e.getY();

      Point2D point2D = chartPanel.translateScreenToJava2D(new Point(xPos, yPos));
      XYPlot xyPlot = (XYPlot)chart.getPlot();
      ChartRenderingInfo chartRenderingInfo = chartPanel.getChartRenderingInfo();
      Rectangle2D rectangle2D = chartRenderingInfo.getPlotInfo().getDataArea();
      ValueAxis valueAxis = xyPlot.getRangeAxis();
      RectangleEdge rectangleEdge = xyPlot.getRangeAxisEdge();
     
      double value = valueAxis.java2DToValue(point2D.getY(), rectangle2D, rectangleEdge);

      TimeSeriesCollection tsc = (TimeSeriesCollection)xyItemEntity.getDataset();
      TimeSeries ts = tsc.getSeries(seriesIndex);
      ts.update(itemIndex,value);
      isDraged = true;
   }

   public void mouseMoved(MouseEvent e){

   }

   public static void main(String[] paramArrayOfString){
      TimeSeriesTest dragValueApp = new TimeSeriesTest("时间序列拖动示例");
      dragValueApp.pack();
      RefineryUtilities.centerFrameOnScreen(dragValueApp);
      dragValueApp.setVisible(true);
   }
}

 

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/WuBill/archive/2009/03/24/4020070.aspx