在这里，我有一个带有十字准线的条形图；当我右键单击时，我会看到一些菜单，例如“LimitBuy @ price”。我想要的是每当我单击右键单击菜单时，我希望在我单击的那个坐标处出现一个箭头。现在，每当我右键单击时，我都可以“SOPln”；这意味着我的听众工作正常，但我如何得到一个箭头和它下面的文字说“买”。我尝试使用注释，但这似乎不起作用。请帮我解决一下这个。
public class MouseListenerDemo4 extends ApplicationFrame implements
ChartMouseListener {
private JFreeChart chart;
private ChartPanel chartPanel;
private JLabel priceLabel;
private double chartX;
private double chartY;
public XYPlot plot1;
public MouseListenerDemo4(String title) {
super(title);
priceLabel = new JLabel("");
priceLabel.setBounds(5000, 5, 50, 20);
String chartTitle = "Mouse Listener Demo 4";
String file = "D:\\CL.txt";
OHLCDataset data2 = createPriceDataset(file);
System.out.println(data2.getItemCount(0));
HighLowRenderer renderer1 = new HighLowRenderer();
renderer1.setTickLength(3);
renderer1.setBaseToolTipGenerator(new StandardXYToolTipGenerator(
StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT,
new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00")));
renderer1.setSeriesPaint(0, Color.blue);
DateAxis domainAxis = new DateAxis("Date");
NumberAxis rangeAxis = new NumberAxis("Price");
rangeAxis.setNumberFormatOverride(new DecimalFormat("$0.00"));
rangeAxis.setAutoRange(true);
rangeAxis.setAutoRangeIncludesZero(false);
plot1 = new XYPlot(data2, domainAxis, rangeAxis, renderer1);
plot1.getRangeCrosshairPaint();
plot1.setBackgroundPaint(Color.white);
plot1.setDomainGridlinePaint(Color.magenta);
plot1.setRangeGridlinePaint(Color.magenta);
plot1.setRangePannable(true);
plot1.setRangeCrosshairVisible(true);
plot1.setRangeCrosshairValue(4000, true);
plot1.setRangeCrosshairLockedOnData(true);
plot1.setRangeCrosshairVisible(true);
this.chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot1,
false);
chartPanel = new ChartPanel(this.chart);
chartPanel.setPreferredSize(new java.awt.Dimension(1000, 500));
chartPanel.setMouseZoomable(true, false);
chartPanel.addChartMouseListener(this);
setContentPane(chartPanel);
priceLabel.setBackground(Color.cyan);
chartPanel.add(priceLabel);
priceLabel.setVisible(true);
priceLabel.setText("");
}
private static OHLCDataset createPriceDataset(String filename) {
// the following data is taken from http://finance.yahoo.com/
// for demo purposes...
OHLCSeries s1 = new OHLCSeries(filename);
try {
BufferedReader in = new BufferedReader(new FileReader(filename));
DateFormat df = new SimpleDateFormat("MM/dd/yyyy");
String inputLine;
in.readLine();
while ((inputLine = in.readLine()) != null) {
StringTokenizer st = new StringTokenizer(inputLine, ",");
Date date = df.parse(st.nextToken());
double open = Double.parseDouble(st.nextToken());
double high = Double.parseDouble(st.nextToken());
double low = Double.parseDouble(st.nextToken());
double close = Double.parseDouble(st.nextToken());
double volume = Double.parseDouble(st.nextToken());
s1.add(new Day(date), open, high, low, close);
// t1.add(new Day(date), close);
}
in.close();
} catch (Exception e) {
e.printStackTrace();
}
OHLCSeriesCollection dataset = new OHLCSeriesCollection();
dataset.addSeries(s1);
return dataset;
}
public void chartMouseClicked(ChartMouseEvent event) {
int mouseX = event.getTrigger().getX();
int mouseY = event.getTrigger().getY();
System.out.println("x = " + mouseX + ", y = " + mouseY);
Point2D p = chartPanel
.translateScreenToJava2D(new Point(mouseX, mouseY));
XYPlot plot = (XYPlot) chart.getPlot();
Rectangle2D plotArea = this.chartPanel.getChartRenderingInfo()
.getPlotInfo().getDataArea();
ValueAxis domainAxis = plot.getDomainAxis();
RectangleEdge domainAxisEdge = plot.getDomainAxisEdge();
ValueAxis rangeAxis = plot.getRangeAxis();
RectangleEdge rangeAxisEdge = plot.getRangeAxisEdge();
chartX = domainAxis.java2DToValue(p.getX(), plotArea,
domainAxisEdge);
chartY = rangeAxis.java2DToValue(p.getY(), plotArea,
rangeAxisEdge);
this.chartPanel.setHorizontalAxisTrace(true);
this.chartPanel.setVerticalAxisTrace(true);
System.out.println("Chart: x = " + chartX + ", y = " + (int) chartY);
priceLabel.setText("" + (int) chartY);
JPopupMenu popup = new JPopupMenu();
JMenuItem limitbuy = new JMenuItem("Limit Buy @ " + (int) chartY);
limitbuy.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
XYTextAnnotation textannotation = new XYTextAnnotation("Label", (int)chartX, chartY);
XYShapeAnnotation annotation = new XYShapeAnnotation(
new Ellipse2D.Float(1000.0f, 120.0f, 10.0f, 10.0f),
new BasicStroke(5.0f), Color.blue);
XYPointerAnnotation pointer = new XYPointerAnnotation("arrow",
0.5, 0.5, 0.0);
pointer.setPaint(Color.GREEN);
pointer.setText("mark");
chart.getXYPlot().addAnnotation(pointer);
chart.getXYPlot().addAnnotation(annotation);
chart.getXYPlot().addAnnotation(textannotation);
}
});
popup.add(limitbuy);
popup.add(new JMenuItem("Limit Sell @ " + (int) chartY));
popup.add(new JMenuItem("Stop Buy @ " + (int) chartY));
popup.add(new JMenuItem("Stop Sell @ " + (int) chartY));
popup.add(new JMenuItem("Market Buy @ " + (int) chartY));
popup.add(new JMenuItem("Market Sell @ " + (int) chartY));
chartPanel.setPopupMenu(popup);
}
/**
* Receives chart mouse moved events.
*
* @param event
* the event.
*/
public void chartMouseMoved(ChartMouseEvent event) {
// ignore
}
public static void main(String[] args) {
MouseListenerDemo4 demo = new MouseListenerDemo4(
"Mouse Listener Demo 4");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}