import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import ChartDirector.*;
public class hlinearmeter implements DemoModule
{
//Name of demo program
public String toString() { return "Horizontal Linear Meter"; }
//Number of charts produced in this demo
public int getNoOfCharts() { return 1; }
//Main code for creating charts
public void createChart(ChartViewer viewer, int index)
{
// The value to display on the meter
double value = 75.35;
// Create an LinearMeter object of size 250 x 75 pixels, using silver
// background with a 2 pixel black 3D depressed border.
LinearMeter m = new LinearMeter(250, 75, Chart.silverColor(), 0, -2);
// Set the scale region top-left corner at (15, 25), with size of 200 x 50
// pixels. The scale labels are located on the top (implies horizontal meter)
m.setMeter(15, 25, 220, 20, Chart.Top);
// Set meter scale from 0 - 100, with a tick every 10 units
m.setScale(0, 100, 10);
// Set 0 - 50 as green (99ff99) zone, 50 - 80 as yellow (ffff66) zone, and 80
// - 100 as red (ffcccc) zone
m.addZone(0, 50, 0x99ff99);
m.addZone(50, 80, 0xffff66);
m.addZone(80, 100, 0xffcccc);
// Add a blue (0000cc) pointer at the specified value
m.addPointer(value, 0x0000cc);
// Add a label at bottom-left (10, 68) using Arial Bold/8 pts/red (c00000)
m.addText(10, 68, "Temperature C", "Arial Bold", 8, 0xc00000,
Chart.BottomLeft);
// Add a text box to show the value formatted to 2 decimal places at bottom
// right. Use white text on black background with a 1 pixel depressed 3D
// border.
m.addText(238, 70, m.formatValue(value, "2"), "Arial", 8, 0xffffff,
Chart.BottomRight).setBackground(0, 0, -1);
// Output the chart
viewer.setChart(m);
}
//Allow this module to run as standalone program for easy testing
public static void main(String[] args)
{
//Instantiate an instance of this demo module
DemoModule demo = new hlinearmeter();
//Create and set up the main window
JFrame frame = new JFrame(demo.toString());
frame.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {System.exit(0);} });
frame.getContentPane().setBackground(Color.white);
// Create the chart and put them in the content pane
ChartViewer viewer = new ChartViewer();
demo.createChart(viewer, 0);
frame.getContentPane().add(viewer);
// Display the window
frame.pack();
frame.setVisible(true);
}
} |