import ChartDirector.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
public class trackfinance implements DemoModule
{
//
// The main method to allow this demo to run as a standalone program.
//
public static void main(String args[])
{
trackfinance demo = new trackfinance();
demo.display();
System.exit(0);
}
//
// Display the window
//
private void display()
{
// Use a JDialog as the window
JDialog d = new JDialog((java.awt.Frame)null, toString(), true);
d.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
d.setResizable(false);
// Create the ChartViewer and add it to the JDialog
ChartViewer viewer = new ChartViewer();
d.getContentPane().add(viewer);
// Add a movedMovedPlotArea event listener to draw the track cursor
viewer.addTrackCursorListener(new TrackCursorAdapter() {
public void mouseMovedPlotArea(MouseEvent e) {
chartViewer1_MouseMovedPlotArea(e);
}
});
// Draw the chart
drawChart(viewer);
// Layout and display the JDialog
d.pack();
d.setVisible(true);
}
//
// Main code for creating charts
//
public void drawChart(ChartViewer viewer)
{
// Create a finance chart demo containing 100 days of data
int noOfDays = 100;
// To compute moving averages starting from the first day, we need to get extra data points before the
// first day
int extraDays = 30;
// In this exammple, we use a random number generator utility to simulate the data. We set up the
// random table to create 6 cols x (noOfDays + extraDays) rows, using 9 as the seed.
RanTable rantable = new RanTable(9, 6, noOfDays + extraDays);
// Set the 1st col to be the timeStamp, starting from Sep 4, 2011, with each row representing one day,
// and counting week days only (jump over Sat and Sun)
rantable.setDateCol(0, new GregorianCalendar(2011, 8, 4).getTime(), 86400, true);
// Set the 2nd, 3rd, 4th and 5th columns to be high, low, open and close data. The open value starts
// from 100, and the daily change is random from -5 to 5.
rantable.setHLOCCols(1, 100, -5, 5);
// Set the 6th column as the vol data from 5 to 25 million
rantable.setCol(5, 50000000, 250000000);
// Now we read the data from the table into arrays
double[] timeStamps = rantable.getCol(0);
double[] highData = rantable.getCol(1);
double[] lowData = rantable.getCol(2);
double[] openData = rantable.getCol(3);
double[] closeData = rantable.getCol(4);
double[] volData = rantable.getCol(5);
// Create a FinanceChart object of width 720 pixels
FinanceChart c = new FinanceChart(720);
// Add a title to the chart
c.addTitle("Finance Chart Demonstration");
// Disable default legend box, as we are using dynamic legend
c.setLegendStyle("normal", 8, Chart.Transparent, Chart.Transparent);
// Set the data into the finance chart object
c.setData(timeStamps, highData, lowData, openData, closeData, volData, extraDays);
// Add the main chart with 240 pixels in height
c.addMainChart(240);
// Add a 10 period simple moving average to the main chart, using brown color
c.addSimpleMovingAvg(10, 0x663300);
// Add a 20 period simple moving average to the main chart, using purple color
c.addSimpleMovingAvg(20, 0x9900ff);
// Add candlestick symbols to the main chart, using green/red for up/down days
c.addCandleStick(0x00ff00, 0xff0000);
// Add 20 days bollinger band to the main chart, using light blue (9999ff) as the border and
// semi-transparent blue (c06666ff) as the fill color
c.addBollingerBand(20, 2, 0x9999ff, 0xc06666ff);
// Add a 75 pixels volume bars sub-chart to the bottom of the main chart, using green/red/grey for
// up/down/flat days
c.addVolBars(75, 0x99ff99, 0xff9999, 0x808080);
// Append a 14-days RSI indicator chart (75 pixels high) after the main chart. The main RSI line is
// purple (800080). Set threshold region to +/- 20 (that is, RSI = 50 +/- 25). The upper/lower
// threshold regions will be filled with red (ff0000)/blue (0000ff).
c.addRSI(75, 14, 0x800080, 20, 0xff0000, 0x0000ff);
// Append a MACD(26, 12) indicator chart (75 pixels high) after the main chart, using 9 days for
// computing divergence.
c.addMACD(75, 26, 12, 9, 0x0000ff, 0xff00ff, 0x008000);
// Include track line with legend for the latest data values
trackFinance(c, ((XYChart)c.getChart(0)).getPlotArea().getRightX());
// Assign the chart to the ChartViewer
viewer.setChart(c);
}
//
// Draw track cursor when mouse is moving over plotarea
//
private void chartViewer1_MouseMovedPlotArea(MouseEvent e)
{
ChartViewer viewer = (ChartViewer)e.getSource();
trackFinance((MultiChart)viewer.getChart(), viewer.getPlotAreaMouseX());
viewer.updateDisplay();
}
//
// Draw finance chart track line with legend
//
private void trackFinance(MultiChart m, int mouseX)
{
// Clear the current dynamic layer and get the DrawArea object to draw on it.
DrawArea d = m.initDynamicLayer();
// It is possible for a FinanceChart to be empty, so we need to check for it.
if (m.getChartCount() == 0) {
return ;
}
// Get the data x-value that is nearest to the mouse
int xValue = (int)(((XYChart)m.getChart(0)).getNearestXValue(mouseX));
// Iterate the XY charts (main price chart and indicator charts) in the FinanceChart
XYChart c = null;
for (int i = 0; i < m.getChartCount(); ++i) {
c = (XYChart)m.getChart(i);
// Variables to hold the legend entries
String ohlcLegend = "";
ArrayList legendEntries = new ArrayList();
// Iterate through all layers to find the highest data point
for (int j = 0; j < c.getLayerCount(); ++j) {
Layer layer = c.getLayerByZ(j);
int xIndex = layer.getXIndexOf(xValue);
int dataSetCount = layer.getDataSetCount();
// In a FinanceChart, only layers showing OHLC data can have 4 data sets
if (dataSetCount == 4) {
double highValue = layer.getDataSet(0).getValue(xIndex);
double lowValue = layer.getDataSet(1).getValue(xIndex);
double openValue = layer.getDataSet(2).getValue(xIndex);
double closeValue = layer.getDataSet(3).getValue(xIndex);
if (closeValue != Chart.NoValue) {
// Build the OHLC legend
ohlcLegend = "Open: " + c.formatValue(openValue, "{value|P4}") + ", High: " +
c.formatValue(highValue, "{value|P4}") + ", Low: " + c.formatValue(lowValue,
"{value|P4}") + ", Close: " + c.formatValue(closeValue, "{value|P4}");
// We also draw an upward or downward triangle for up and down days and the % change
double lastCloseValue = layer.getDataSet(3).getValue(xIndex - 1);
if (lastCloseValue != Chart.NoValue) {
double change = closeValue - lastCloseValue;
double percent = change * 100 / closeValue;
String symbol = ((change >= 0) ?
"<*font,color=008800*><*img=@triangle,width=8,color=008800*>" :
"<*font,color=CC0000*><*img=@invertedtriangle,width=8,color=CC0000*>");
ohlcLegend = ohlcLegend + " " + symbol + " " + c.formatValue(change, "{value|P4}"
) + " (" + c.formatValue(percent, "{value|2}") + "%)<*/font*>";
}
// Use a <*block*> to make sure the line does not wrap within the legend entry
ohlcLegend = "<*block*>" + ohlcLegend + " <*/*>";
}
} else {
// Iterate through all the data sets in the layer
for (int k = 0; k < layer.getDataSetCount(); ++k) {
ChartDirector.DataSet dataSet = layer.getDataSetByZ(k);
String name = dataSet.getDataName();
double value = dataSet.getValue(xIndex);
if ((!(name == null || name == "")) && (value != Chart.NoValue)) {
// In a FinanceChart, the data set name consists of the indicator name and its
// latest value. It is like "Vol: 123M" or "RSI (14): 55.34". As we are generating
// the values dynamically, we need to extract the indictor name out, and also the
// volume unit (if any).
// The unit character, if any, is the last character and must not be a digit.
String unitChar = name.substring(name.length() - 1);
if (unitChar.compareTo("0") >= 0 && unitChar.compareTo("9") <= 0) {
unitChar = "";
}
// The indicator name is the part of the name up to the colon character.
int delimiterPosition = name.indexOf(":");
if (delimiterPosition != -1) {
name = name.substring(0, delimiterPosition);
}
// In a FinanceChart, if there are two data sets, it must be representing a range.
if (dataSetCount == 2) {
// We show both values in the range in a single legend entry
value = layer.getDataSet(0).getValue(xIndex);
double value2 = layer.getDataSet(1).getValue(xIndex);
name = name + ": " + c.formatValue(Math.min(value, value2), "{value|P3}") +
" - " + c.formatValue(Math.max(value, value2), "{value|P3}");
} else {
// In a FinanceChart, only the layer for volume bars has 3 data sets for
// up/down/flat days
if (dataSetCount == 3) {
// The actual volume is the sum of the 3 data sets.
value = layer.getDataSet(0).getValue(xIndex) + layer.getDataSet(1
).getValue(xIndex) + layer.getDataSet(2).getValue(xIndex);
}
// Create the legend entry
name = name + ": " + c.formatValue(value, "{value|P3}") + unitChar;
}
// Build the legend entry, consist of a colored square box and the name (with the
// data value in it).
legendEntries.add("<*block*><*img=@square,width=8,edgeColor=000000,color=" +
Integer.toHexString(dataSet.getDataColor()) + "*> " + name + "<*/*>");
}
}
}
}
// Get the plot area position relative to the entire FinanceChart
PlotArea plotArea = c.getPlotArea();
int plotAreaLeftX = plotArea.getLeftX() + c.getAbsOffsetX();
int plotAreaTopY = plotArea.getTopY() + c.getAbsOffsetY();
// The legend is formed by concatenating the legend entries.
Collections.reverse(legendEntries);
String legendText = Chart.stringJoin(legendEntries, " ");
// Add the date and the ohlcLegend (if any) at the beginning of the legend
legendText = "<*block,valign=top,maxWidth=" + (plotArea.getWidth() - 5) + "*><*font=Arial Bold*>["
+ c.xAxis().getFormattedLabel(xValue, "mmm dd, yyyy") + "]<*/font*> " + ohlcLegend +
legendText;
// Draw a vertical track line at the x-position
d.vline(plotAreaTopY, plotAreaTopY + plotArea.getHeight(), c.getXCoor(xValue) + c.getAbsOffsetX(),
d.dashLineColor(0x000000, 0x0101));
// Display the legend on the top of the plot area
TTFText t = d.text(legendText, "Arial", 8);
t.draw(plotAreaLeftX + 5, plotAreaTopY + 3, 0x000000, Chart.TopLeft);
}
}
//
// Implementation of the DemoModule interface to allow this demo to run inside the
// ChartDirectorDemo browser
//
// Name of demo program
public String toString()
{
return "Finance Chart Track Line";
}
// Number of charts produced in this demo
public int getNoOfCharts()
{
// This demo open its own dialog instead of using the right pane of the ChartDirectorDemo
// for display. We just display the dialog, then return 0.
display();
return 0;
}
// Main code for creating charts
public void createChart(ChartViewer viewer, int chartIndex)
{
// do nothing, as the ChartDirectorDemo browser right pane is not used
}
} |