jj2000.j2k.decoder
Class SimpleAppletDecoder

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--jj2000.j2k.decoder.SimpleAppletDecoder

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, java.lang.Runnable, java.io.Serializable

public class SimpleAppletDecoder

extends java.applet.Applet

implements java.lang.Runnable

This applet implements a simple mean to embed the JJ2000 decoder in an HTML page. The applet accepts all the parameters of the JJ2000 decoder, except output files. The image is downloaded, decoded and shown in the applet area. Scrollbars appear if the image is larger than the applet area.

An example use could be:

<applet code="jj2000.j2k.decoder.SimpleAppletDecoder.class"
archive="jj2000-aplt.jar"
width="512" height="512">
<param name="i" value="tools.jp2">
<param name="res" value"3">
</applet>

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private Decoder	dec The decoder
private boolean	decStarted If the decoder thread has already been started
private java.lang.Thread	decThread The thread where the decoder is run
private ImgScrollPane	isp Where the image is displayed
private static java.lang.String[][]	pinfo The parameter info, with all possible options.
private ParameterList	pl The parameter list to give to the decoder

Fields inherited from class java.applet.Applet

Fields inherited from class java.awt.Panel

Fields inherited from class java.awt.Container

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

SimpleAppletDecoder()

Method Summary

void	destroy() Waits for the decoder thread to end and sets it to null.
java.lang.String	getAppletInfo() Returns the applet information (version, copyright, etc.)
java.lang.String[][]	getParameterInfo() Returns the applet parameter information.
void	init() Initializes the applet.
void	run() The run method for the decoding thread.
void	start() Starts the decoding thread.
void	stop() Does nothing, since the decoder thread can not be stopped.

Methods inherited from class java.applet.Applet

getAccessibleContext, getAppletContext, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, setLayout, transferFocusBackward, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

pinfo

private static java.lang.String[][] pinfo

The parameter info, with all possible options.

dec

private Decoder dec

The decoder

pl

private ParameterList pl

The parameter list to give to the decoder

decThread

private java.lang.Thread decThread

The thread where the decoder is run

decStarted

private boolean decStarted

If the decoder thread has already been started

isp

private ImgScrollPane isp

Where the image is displayed

Constructor Detail

SimpleAppletDecoder

public SimpleAppletDecoder()

Method Detail

init

public void init()

Initializes the applet. It reads the parameters and creates the decoder thread.

Overrides:

init in class java.applet.Applet

start

public void start()

Starts the decoding thread.

Overrides:

start in class java.applet.Applet

stop

public void stop()

Does nothing, since the decoder thread can not be stopped.

Overrides:

stop in class java.applet.Applet

destroy

public void destroy()

Waits for the decoder thread to end and sets it to null.

Overrides:

destroy in class java.applet.Applet

run

public void run()

The run method for the decoding thread. Instantiates the decoder, runs it and updates the status message.

Specified by:

run in interface java.lang.Runnable

getAppletInfo

public java.lang.String getAppletInfo()

Returns the applet information (version, copyright, etc.)

Overrides:

getAppletInfo in class java.applet.Applet

Returns:

A multi-line string containing the applet name, version, copyright and bug reporting address.

getParameterInfo

public java.lang.String[][] getParameterInfo()

Returns the applet parameter information. See Applet class.

Overrides:

getParameterInfo in class java.applet.Applet

See Also:

Applet.getParameterInfo()