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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwindx.examples;
import gov.nasa.worldwind.geom.*;
import gov.nasa.worldwind.layers.IconLayer;
import gov.nasa.worldwind.render.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
import java.util.ArrayList;
/**
* Illustrates how to display an icon with an alarm state using a World Wind {@link WWIcon}. This applies a
* background image to an icon indicating a warning or an urgent condition, then varies the background image's scale
* factor over time to make it flash or pulse.
*
* This applies the background image by calling {@link WWIcon#setBackgroundImage(Object)}, and varies its
* scale factor by calling {@link WWIcon#setBackgroundScale(double)}.
*
* @author Tom Gaskins
* @version $Id: AlarmIcons.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class AlarmIcons extends ApplicationTemplate
{
public static class AppFrame extends ApplicationTemplate.AppFrame
{
private UserFacingIcon icon;
private ArrayList alarmTypes = new ArrayList();
public AppFrame()
{
super(true, false, false);
IconLayer layer = new IconLayer();
icon = new UserFacingIcon("src/images/32x32-icon-nasa.png",
new Position(Angle.fromDegrees(38), Angle.fromDegrees(-116), 0));
icon.setSize(new Dimension(64, 64));
layer.addIcon(icon);
ApplicationTemplate.insertAfterPlacenames(this.getWwd(), layer);
// Create bitmaps
BufferedImage circleYellow = createBitmap(PatternFactory.PATTERN_CIRCLE, Color.YELLOW);
BufferedImage circleRed = createBitmap(PatternFactory.PATTERN_CIRCLE, Color.RED);
BufferedImage triangleYellow = createBitmap(PatternFactory.PATTERN_TRIANGLE_UP, Color.YELLOW);
BufferedImage triangleRed = createBitmap(PatternFactory.PATTERN_TRIANGLE_UP, Color.RED);
BufferedImage squareYellow = createBitmap(PatternFactory.PATTERN_SQUARE, Color.YELLOW);
BufferedImage squareRed = createBitmap(PatternFactory.PATTERN_SQUARE, Color.RED);
// Set up alarm types
alarmTypes.add(new StaticAlarmAction("Static Yellow Circle", circleYellow, 2));
alarmTypes.add(new StaticAlarmAction("Static Smaller Red Circle", circleRed, 1.5));
alarmTypes.add(new StaticAlarmAction("Static Yellow Triangle", triangleYellow, 2.0));
alarmTypes.add(new StaticAlarmAction("Static Bigger Red Triangle", triangleRed, 2.5));
alarmTypes.add(new PulsingAlarmAction("Pulsing Yellow Circle", circleYellow, 100));
alarmTypes.add(new PulsingAlarmAction("Pulsing Red Circle", circleRed, 100));
alarmTypes.add(new PulsingAlarmAction("Rapidly Pulsing Yellow Square", squareYellow, 50));
alarmTypes.add(new PulsingAlarmAction("Rapidly Pulsing Red Square", squareRed, 50));
alarmTypes.add(new FlashingAlarmAction("Flashing Red Square", squareRed, 200));
alarmTypes.add(new FlashingAlarmAction("Flashing Yellow Triangle", triangleYellow, 200));
this.getContentPane().add(this.makeControlPanel(), BorderLayout.WEST);
}
private JPanel makeControlPanel()
{
JPanel controlPanel = new JPanel(new GridLayout(0, 1, 10, 10));
ButtonGroup bg = new ButtonGroup();
for (Action a : alarmTypes)
{
final JRadioButton b = new JRadioButton(a);
bg.add(b);
controlPanel.add(b);
}
JPanel p = new JPanel(new BorderLayout(10, 10));
p.add(controlPanel, BorderLayout.NORTH);
p.setBorder(new CompoundBorder(new TitledBorder("Alarm States"), new EmptyBorder(20, 10, 20, 10)));
JPanel p2 = new JPanel(new BorderLayout(10, 10));
p2.add(p);
p2.setBorder(new EmptyBorder(10, 10, 10, 10));
return p2;
}
// Create a blurred pattern bitmap
private BufferedImage createBitmap(String pattern, Color color)
{
// Create bitmap with pattern
BufferedImage image = PatternFactory.createPattern(pattern, new Dimension(128, 128), 0.7f,
color, new Color(color.getRed(), color.getGreen(), color.getBlue(), 0));
// Blur a lot to get a fuzzy edge
image = PatternFactory.blur(image, 13);
image = PatternFactory.blur(image, 13);
image = PatternFactory.blur(image, 13);
image = PatternFactory.blur(image, 13);
return image;
}
private class StaticAlarmAction extends AbstractAction
{
private Object bgIconPath;
private double bgScale;
private StaticAlarmAction(String name, Object bgIconPath, double bgScale)
{
super(name);
this.bgIconPath = bgIconPath;
this.bgScale = bgScale;
}
public void actionPerformed(ActionEvent e)
{
icon.setBackgroundImage(bgIconPath);
icon.setBackgroundScale(bgScale);
getWwd().redraw();
}
}
private class PulsingAlarmAction extends AbstractAction
{
protected final Object bgIconPath;
protected int frequency;
protected int scaleIndex = 0;
protected double[] scales = new double[] {1.25, 1.5, 1.75, 2, 2.25, 2.5, 2.75, 3, 3.25, 3.5, 3.25, 3,
2.75, 2.5, 2.25, 2, 1.75, 1.5};
protected Timer timer;
private PulsingAlarmAction(String name, Object bgp, int frequency)
{
super(name);
this.bgIconPath = bgp;
this.frequency = frequency;
}
private PulsingAlarmAction(String name, Object bgp, int frequency, double[] scales)
{
this(name, bgp, frequency);
this.scales = scales;
}
public void actionPerformed(ActionEvent e)
{
if (timer == null)
{
timer = new Timer(frequency, new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
icon.setBackgroundScale(scales[++scaleIndex % scales.length]);
getWwd().redraw();
}
});
((JRadioButton) e.getSource()).addItemListener(new ItemListener()
{
public void itemStateChanged(ItemEvent e)
{
if (e.getStateChange() == ItemEvent.DESELECTED)
timer.stop();
}
});
}
icon.setBackgroundImage(bgIconPath);
scaleIndex = 0;
timer.start();
}
}
private class FlashingAlarmAction extends PulsingAlarmAction
{
private FlashingAlarmAction(String name, Object bgp, int frequency)
{
super(name, bgp, frequency, new double[] {2, 0.5});
}
}
}
public static void main(String[] args)
{
ApplicationTemplate.start("World Wind Alarm Icons", AppFrame.class);
}
}