Package gda.images.camera

Class DummyVideoReceiverBase<T>

java.lang.Object

gda.factory.ConfigurableBase

gda.images.camera.DummyVideoReceiverBase<T>

All Implemented Interfaces:

Configurable, VideoReceiver<T>

Direct Known Subclasses:

DummyAwtVideoReceiver, DummyAwtVideoReceiverWithImage, DummySwtVideoReceiver, DummySwtVideoReceiverWithImage

public abstract class DummyVideoReceiverBase<T>
extends ConfigurableBase
implements VideoReceiver<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected static final int	CIRCLE_SIZE
protected int	circleDeltaX	X distance that circle moves from one frame to the next.
protected int	circleDeltaY	Y distance that circle moves from one frame to the next.
protected int	circleX	Current X position of circle.
protected int	circleY	Current Y position of circle.
protected int	desiredFrameRate
protected Dimension	imageSize

Constructor Summary

Constructors

Constructor	Description
DummyVideoReceiverBase()

Method Summary

Modifier and Type	Method	Description
void	addImageListener(ImageListener<T> listener)	Adds a listener to which captured frames will be passed.
void	closeConnection()	Disconnects from the video stream.
void	configure()	Default implementation for classes that do not have to do any specific configuration. Classes that do their own configuration should *not* call this superclass function, as it may cause the object to appear configured before it really is.
void	createConnection()	Connects to the video stream and starts dispatching images to listeners.
protected abstract void	createInitialImage()	Creates the initial image.
String	getDisplayName()	Returns the video source's display name.
void	removeImageListener(ImageListener<T> listener)	Removes a listener from the list of listeners to which captured frames will be passed.
void	setDesiredFrameRate(int desiredFrameRate)	Sets the desired frame rate.
void	setDisplayName(String displayName)
void	setImageSize(Dimension imageSize)
void	start()	Starts frame capture.
void	stop()	Stops frame capture.
protected abstract T	updateImage()	Updates the image.

Methods inherited from class gda.factory.ConfigurableBase

isConfigureAtStartup, isConfigured, reconfigure, setConfigured

Methods inherited from class java.lang.Object

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

Methods inherited from interface gda.factory.Configurable

isConfigureAtStartup, isConfigured, reconfigure

Methods inherited from interface gda.images.camera.VideoReceiver

getImage

Field Details

desiredFrameRate

protected int desiredFrameRate

imageSize

protected Dimension imageSize

circleX

protected int circleX

Current X position of circle.

circleY

protected int circleY

Current Y position of circle.

CIRCLE_SIZE

protected static final int CIRCLE_SIZE

See Also:

• Constant Field Values

circleDeltaX

protected int circleDeltaX

X distance that circle moves from one frame to the next.

circleDeltaY

protected int circleDeltaY

Y distance that circle moves from one frame to the next.

Constructor Details

DummyVideoReceiverBase

public DummyVideoReceiverBase()

Method Details

setDesiredFrameRate

public void setDesiredFrameRate(int desiredFrameRate)

Sets the desired frame rate. (The default is 10fps.)

setImageSize

public void setImageSize(Dimension imageSize)

setDisplayName

public void setDisplayName(String displayName)

getDisplayName

public String getDisplayName()

Description copied from interface: VideoReceiver

Returns the video source's display name. This is a label used in the UI to distinguish between multiple video sources.

Specified by:

getDisplayName in interface VideoReceiver<T>

Returns:

display name

addImageListener

public void addImageListener(ImageListener<T> listener)

Description copied from interface: VideoReceiver

Adds a listener to which captured frames will be passed.

Specified by:

addImageListener in interface VideoReceiver<T>

removeImageListener

public void removeImageListener(ImageListener<T> listener)

Description copied from interface: VideoReceiver

Removes a listener from the list of listeners to which captured frames will be passed.

Specified by:

removeImageListener in interface VideoReceiver<T>

configure

public void configure()
               throws FactoryException

Description copied from class: ConfigurableBase

Default implementation for classes that do not have to do any specific configuration.
Classes that do their own configuration should *not* call this superclass function, as it may cause the object to appear configured before it really is.

Specified by:

configure in interface Configurable

Overrides:

configure in class ConfigurableBase

Throws:

FactoryException - if there is an error in configuration e.g. required variable not set or cannot connect to device

createConnection

public void createConnection()

Description copied from interface: VideoReceiver

Connects to the video stream and starts dispatching images to listeners.

Specified by:

createConnection in interface VideoReceiver<T>

start

public void start()

Description copied from interface: VideoReceiver

Starts frame capture.

Specified by:

start in interface VideoReceiver<T>

stop

public void stop()

Description copied from interface: VideoReceiver

Stops frame capture.

Specified by:

stop in interface VideoReceiver<T>

closeConnection

public void closeConnection()

Description copied from interface: VideoReceiver

Disconnects from the video stream.

Specified by:

closeConnection in interface VideoReceiver<T>

createInitialImage

protected abstract void createInitialImage()

Creates the initial image.

updateImage

protected abstract T updateImage()

Updates the image. Called at regular intervals.