dlife.vision
Class VideoDisplay

java.lang.Object
  java.util.Observable
      dlife.robot.Device
          dlife.robot.PseudoDevice
              dlife.vision.VideoDisplay

All Implemented Interfaces:

Observer

public class VideoDisplay
extends PseudoDevice
implements Observer

A VideoDisplay is a wrapper for two BufferedImageWithOverlay objects, one for the raw video and one for the filtered video. It provides access to the two BufferedImageWithOverlay objects so that they can be manipulated independently by the controlling Camera and FilterList objects. This also provides a GUI containing the two video windows, one for the raw video and one for the filtered video.

Version:

Jun 10, 2009

Author:

Grant Braught, Dickinson College

Field Summary

Fields inherited from class dlife.robot.Device

DEFAULT_GUI_UPDATE_DELAY, DEFAULT_READ_DELAY, myRobot, readCount

Constructor Summary

VideoDisplay(int width, int height)
Construct a new VideoDisplay with two BufferedImageWithOverlay components of the specified size.

Method Summary

protected DeviceDisplay[]	createGUIObjects() Get the object that is the GUI for the VideoDisplay.
BufferedImageWithOverlay	getFiltered() Get the BufferedImageWithOverlay object that is being used to display the filtered video.
BufferedImageWithOverlay	getRaw() Get the BufferedImageWithOverlay object that is being used to display the raw video.
static void	main(String[] args) Little test method that pops up a VideoDisplay in a Window for testing purposes.
void	readStateFromPseudoDevice() Does nothing.
void	update(Observable o, Object arg) The VideoDisplay can be an observer on the VideoSource that it is displaying.

Methods inherited from class dlife.robot.PseudoDevice

freeze, getRobot, readStateFromRobot, setRobot

Methods inherited from class dlife.robot.Device

getAutoRead, getGUI, getGUIUpdateDelay, getReadDelay, getSensorReadCount, getSensorReadRate, setAutoRead, setGUIUpdateDelay, setReadDelay, shutDown, startAutoReadTimer, startUp, stopAutoReadTimer

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VideoDisplay

public VideoDisplay(int width,
                    int height)

Construct a new VideoDisplay with two BufferedImageWithOverlay components of the specified size.

Parameters:

width - the width of the BufferedImageWithOverlay components.

height - the height of the BufferedImageWithOverlay components.

Method Detail

readStateFromPseudoDevice

public void readStateFromPseudoDevice()

Does nothing.

Specified by:

readStateFromPseudoDevice in class PseudoDevice

createGUIObjects

protected DeviceDisplay[] createGUIObjects()

Get the object that is the GUI for the VideoDisplay.

Specified by:

createGUIObjects in class Device

Returns:

a reference to the GUI.

getRaw

public BufferedImageWithOverlay getRaw()

Get the BufferedImageWithOverlay object that is being used to display the raw video.

Returns:

the raw BufferedImageWithOverlay object.

getFiltered

public BufferedImageWithOverlay getFiltered()

Get the BufferedImageWithOverlay object that is being used to display the filtered video.

Returns:

the filtered BufferedImageWithOverlay object.

update

public void update(Observable o,
                   Object arg)

The VideoDisplay can be an observer on the VideoSource that it is displaying. If this is the case then this method will be invoked when the VideoSource changes. This method will then enable (disable) the mouse click/drag events in the BufferedImageWithOverlay objects when the video is paused (played).

Specified by:

update in interface Observer

main

public static void main(String[] args)

Little test method that pops up a VideoDisplay in a Window for testing purposes.

Parameters:

args - none