import ChartDirector.*;
import java.util.*;
import javax.swing.*;
import java.awt.event.*;
public class tracklegend implements DemoModule
{
//
// The main method to allow this demo to run as a standalone program.
//
public static void main(String args[])
{
tracklegend demo = new tracklegend();
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)
{
// Data for the chart as 3 random data series
RanSeries r = new RanSeries(127);
double[] data0 = r.getSeries(100, 100, -15, 15);
double[] data1 = r.getSeries(100, 150, -15, 15);
double[] data2 = r.getSeries(100, 200, -15, 15);
Date[] timeStamps = r.getDateSeries(100, new GregorianCalendar(2011, 0, 1).getTime(), 86400);
// Create a XYChart object of size 640 x 400 pixels
XYChart c = new XYChart(640, 400);
// Add a title to the chart using 18pt Times New Roman Bold Italic font
c.addTitle(" Product Line Global Revenue", "Times New Roman Bold Italic", 18);
// Set the plotarea at (50, 55) with width 70 pixels less than chart width, and height 90 pixels less
// than chart height. Use a vertical gradient from light blue (f0f6ff) to sky blue (a0c0ff) as
// background. Set border to transparent and grid lines to white (ffffff).
c.setPlotArea(50, 55, c.getWidth() - 70, c.getHeight() - 90, c.linearGradientColor(0, 55, 0,
c.getHeight() - 35, 0xf0f6ff, 0xa0c0ff), -1, Chart.Transparent, 0xffffff, 0xffffff);
// Set legend icon style to use line style icon, sized for 8pt font
c.getLegend().setLineStyleKey();
c.getLegend().setFontSize(8);
// Set axis label style to 8pt Arial Bold
c.xAxis().setLabelStyle("Arial Bold", 8);
c.yAxis().setLabelStyle("Arial Bold", 8);
// Set the axis stem to transparent
c.xAxis().setColors(Chart.Transparent);
c.yAxis().setColors(Chart.Transparent);
// Configure x-axis label format
c.xAxis().setMultiFormat(Chart.StartOfYearFilter(), "{value|mm/yyyy} ", Chart.StartOfMonthFilter(),
"{value|mm}");
// Add axis title using 10pt Arial Bold Italic font
c.yAxis().setTitle("USD millions", "Arial Bold Italic", 10);
// Add a line layer to the chart using a line width of 2 pixels.
LineLayer layer = c.addLineLayer2();
layer.setLineWidth(2);
// Add 3 data series to the line layer
layer.setXData(timeStamps);
layer.addDataSet(data0, 0xff3333, "Alpha");
layer.addDataSet(data1, 0x008800, "Beta");
layer.addDataSet(data2, 0x3333cc, "Gamma");
// Include track line with legend for the latest data values
trackLineLegend(c, c.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();
trackLineLegend((XYChart)viewer.getChart(), viewer.getPlotAreaMouseX());
viewer.updateDisplay();
}
//
// Draw the track line with legend
//
private void trackLineLegend(XYChart c, int mouseX)
{
// Clear the current dynamic layer and get the DrawArea object to draw on it.
DrawArea d = c.initDynamicLayer();
// The plot area object
PlotArea plotArea = c.getPlotArea();
// Get the data x-value that is nearest to the mouse, and find its pixel coordinate.
double xValue = c.getNearestXValue(mouseX);
int xCoor = c.getXCoor(xValue);
// Draw a vertical track line at the x-position
d.vline(plotArea.getTopY(), plotArea.getBottomY(), xCoor, d.dashLineColor(0x000000, 0x0101));
// Container to hold the legend entries
ArrayList legendEntries = new ArrayList();
// Iterate through all layers to build the legend array
for (int i = 0; i < c.getLayerCount(); ++i) {
Layer layer = c.getLayerByZ(i);
// The data array index of the x-value
int xIndex = layer.getXIndexOf(xValue);
// Iterate through all the data sets in the layer
for (int j = 0; j < layer.getDataSetCount(); ++j) {
ChartDirector.DataSet dataSet = layer.getDataSetByZ(j);
// We are only interested in visible data sets with names
String dataName = dataSet.getDataName();
int color = dataSet.getDataColor();
if ((!(dataName == null || dataName == "")) && (color != Chart.Transparent)) {
// Build the legend entry, consist of the legend icon, name and data value.
double dataValue = dataSet.getValue(xIndex);
legendEntries.add("<*block*>" + dataSet.getLegendIcon() + " " + dataName + ": " + ((
dataValue == Chart.NoValue) ? "N/A" : c.formatValue(dataValue, "{value|P4}")) +
"<*/*>");
// Draw a track dot for data points within the plot area
int yCoor = c.getYCoor(dataSet.getPosition(xIndex), dataSet.getUseYAxis());
if ((yCoor >= plotArea.getTopY()) && (yCoor <= plotArea.getBottomY())) {
d.circle(xCoor, yCoor, 4, 4, color, color);
}
}
}
}
// Create the legend by joining the legend entries
Collections.reverse(legendEntries);
String legendText = "<*block,maxWidth=" + plotArea.getWidth() + "*><*block*><*font=Arial Bold*>[" +
c.xAxis().getFormattedLabel(xValue, "mmm dd, yyyy") + "]<*/*> " + Chart.stringJoin(
legendEntries, " ") + "<*/*>";
// Display the legend on the top of the plot area
TTFText t = d.text(legendText, "Arial", 8);
t.draw(plotArea.getLeftX() + 5, plotArea.getTopY() - 3, 0x000000, Chart.BottomLeft);
}
//
// Implementation of the DemoModule interface to allow this demo to run inside the
// ChartDirectorDemo browser
//
// Name of demo program
public String toString()
{
return "Track Line with Legend";
}
// 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
}
} |