Package org.opensourcephysics.media.gif

Class GifVideo

java.lang.Object

org.opensourcephysics.media.core.VideoAdapter

org.opensourcephysics.media.gif.GifVideo

All Implemented Interfaces:

java.beans.PropertyChangeListener, java.util.EventListener, Drawable, Interactive, Measurable, DrawableImage, InteractiveImage, Playable, Trackable, Video

public class GifVideo
extends VideoAdapter

This is a video that wraps an animated gif image.

Field Summary

Fields

Modifier and Type	Field	Description
protected GifDecoder	decoder
protected int[]	startTimes

Fields inherited from class org.opensourcephysics.media.core.VideoAdapter

aspects, bufferedImage, clearRaster, coords, endFrameNumber, filteredImage, filterStack, frameCount, frameNumber, isMeasured, isValidFilteredImage, isValidImage, isValidMeasure, looping, maxX, maxY, minX, minY, mouseEnabled, playing, properties, rate, rawImage, size, startFrameNumber, support, visible, widthDominates

Constructor Summary

Constructors

Constructor	Description
GifVideo(java.lang.String gifName)	Creates a GifVideo and loads a gif image specified by name

Method Summary

Modifier and Type	Method	Description
void	draw(DrawingPanel panel, java.awt.Graphics g)	Draws the video image on the panel.
protected void	finalize()	Called by the garbage collector when this video is no longer in use.
double	getDuration()	Gets the duration of the video.
double	getEndTime()	Gets the end time in milliseconds.
double	getFrameTime(int n)	Gets the start time of the specified frame in milliseconds.
static XML.ObjectLoader	getLoader()	Returns an XML.ObjectLoader to save and load GifVideo data.
double	getStartTime()	Gets the start time in milliseconds.
double	getTime()	Gets the current video time in milliseconds.
protected void	load(java.lang.String gifName)	Loads a gif image specified by name.
void	play()	Plays the video at the current rate.
void	setEndTime(double millis)	Sets the end time in milliseconds.
void	setFrameNumber(int n)	Overrides ImageVideo setFrameNumber method.
void	setStartTime(double millis)	Sets the start time in milliseconds.
void	setTime(double millis)	Sets the video time in milliseconds.
void	stop()	Stops the video.

Methods inherited from class java.lang.Object

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

Methods inherited from class org.opensourcephysics.media.core.VideoAdapter

addPropertyChangeListener, addPropertyChangeListener, back, dispose, findInteractive, findMinMaxValues, firePropertyChange, getAngle, getCoords, getEndFrameNumber, getFilterStack, getFrameCount, getFrameDuration, getFrameNumber, getHeight, getImage, getProperty, getPropertyNames, getRate, getRelativeAspect, getStartFrameNumber, getWidth, getX, getXMax, getXMin, getY, getYMax, getYMin, goToEnd, goToStart, initialize, isEnabled, isLooping, isMeasured, isPlaying, isVisible, propertyChange, refreshBufferedImage, removePropertyChangeListener, removePropertyChangeListener, reset, setAngle, setCoords, setEnabled, setEndFrameNumber, setFilterStack, setFrameAngle, setFrameHeight, setFrameRelativeAspect, setFrameWidth, setFrameX, setFrameXY, setFrameY, setHeight, setLooping, setPlaying, setProperty, setRate, setRelativeAspect, setStartFrameNumber, setVisible, setWidth, setX, setXY, setY, step

Field Detail

decoder

protected GifDecoder decoder

startTimes

protected int[] startTimes

Constructor Detail

GifVideo

public GifVideo(java.lang.String gifName)
         throws java.io.IOException

Creates a GifVideo and loads a gif image specified by name

Parameters:

gifName - the name of the image file

Throws:

java.io.IOException

Method Detail

draw

public void draw(DrawingPanel panel,
                 java.awt.Graphics g)

Draws the video image on the panel.

Specified by:

draw in interface Drawable

Overrides:

draw in class VideoAdapter

Parameters:

panel - the drawing panel requesting the drawing

g - the graphics context on which to draw

finalize

protected void finalize()

Called by the garbage collector when this video is no longer in use.

Overrides:

finalize in class VideoAdapter

play

public void play()

Plays the video at the current rate.

Specified by:

play in interface Playable

Overrides:

play in class VideoAdapter

stop

public void stop()

Stops the video.

Specified by:

stop in interface Playable

Overrides:

stop in class VideoAdapter

setFrameNumber

public void setFrameNumber(int n)

Overrides ImageVideo setFrameNumber method.

Specified by:

setFrameNumber in interface Video

Overrides:

setFrameNumber in class VideoAdapter

Parameters:

n - the desired frame number

See Also:

Video.getStartFrameNumber(), Video.getEndFrameNumber()

getFrameTime

public double getFrameTime(int n)

Gets the start time of the specified frame in milliseconds.

Specified by:

getFrameTime in interface Video

Overrides:

getFrameTime in class VideoAdapter

Parameters:

n - the frame number

Returns:

the start time of the frame in milliseconds, or -1 if not known

getTime

public double getTime()

Gets the current video time in milliseconds.

Specified by:

getTime in interface Playable

Overrides:

getTime in class VideoAdapter

Returns:

the current time in milliseconds, or -1 if not known

setTime

public void setTime(double millis)

Sets the video time in milliseconds.

Specified by:

setTime in interface Playable

Overrides:

setTime in class VideoAdapter

Parameters:

millis - the desired time in milliseconds

getStartTime

public double getStartTime()

Gets the start time in milliseconds.

Specified by:

getStartTime in interface Playable

Overrides:

getStartTime in class VideoAdapter

Returns:

the start time in milliseconds, or -1 if not known

setStartTime

public void setStartTime(double millis)

Sets the start time in milliseconds. NOTE: the actual start time is normally set to the beginning of a frame.

Specified by:

setStartTime in interface Playable

Overrides:

setStartTime in class VideoAdapter

Parameters:

millis - the desired start time in milliseconds

getEndTime

public double getEndTime()

Gets the end time in milliseconds.

Specified by:

getEndTime in interface Playable

Overrides:

getEndTime in class VideoAdapter

Returns:

the end time in milliseconds, or -1 if not known

setEndTime

public void setEndTime(double millis)

Sets the end time in milliseconds. NOTE: the actual end time is set to the end of a frame.

Specified by:

setEndTime in interface Playable

Overrides:

setEndTime in class VideoAdapter

Parameters:

millis - the desired end time in milliseconds

getDuration

public double getDuration()

Gets the duration of the video.

Specified by:

getDuration in interface Playable

Overrides:

getDuration in class VideoAdapter

Returns:

the duration of the video in milliseconds, or -1 if not known

load

protected void load(java.lang.String gifName)
             throws java.io.IOException

Loads a gif image specified by name.

Parameters:

gifName - the gif image name

Throws:

java.io.IOException

getLoader

public static XML.ObjectLoader getLoader()

Returns an XML.ObjectLoader to save and load GifVideo data.

Returns:

the object loader