: Class TApplet

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tapestry.support.swing
Class TApplet

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--java.awt.Panel
                    |
                    +--java.applet.Applet
                          |
                          +--javax.swing.JApplet
                                |
                                +--tapestry.support.swing.TApplet

public class TApplet
extends javax.swing.JApplet

An applet is a small program that is intended not to be run on its own, but rather to be embedded inside another application.

The Applet class must be the superclass of any applet that is to be embedded in a Web page or viewed by the Java Applet Viewer. The Applet class provides a standard interface between applets and their environment.

One must subclass from an Applet class and can override four Applet methods so that it can respond to major browser events:

init: To initialize the applet each time it's loaded (or reloaded).
start: To start the applet's execution, such as when the applet's loaded or when the user revisits a page that contains the applet.
stop: To stop the applet's execution, such as when the user leaves the applet's page or quits the browser.
destroy: To perform a final cleanup in preparation for unloading.

Not every applet needs to override every one of these methods. Some very simple applets may override none of them.

See Also:: Serialized Form

Inner classes inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

Fields inherited from class javax.swing.JApplet

accessibleContext,  
rootPane,  
rootPaneCheckingEnabled

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT,  
CENTER_ALIGNMENT,  
LEFT_ALIGNMENT,  
RIGHT_ALIGNMENT,  
TOP_ALIGNMENT

Constructor Summary
`TApplet()` Creates a tapestry applet instance.

Method Summary
`java.awt.Component`	`add(java.awt.Component comp)` Adds the specified component to this container replacing the current component within it.
`java.awt.Rectangle`	`getBounds()` Returns the applet's boundaries as a rectangle, i.e., upper-left corner (x, y) and dimensions (width, height).
`TCanvas`	`getCanvas()` Gets the TCanvas within this container.
`static TApplet`	`getInstance()` Returns the single instance of the TApplet.
`void`	`init()`
`void`	`remove(java.awt.Component comp)` Removes the specified component from this container.
`void`	`setLayout(java.awt.LayoutManager mgr)` Sets the layout manager for this container, i.e., how components are arranged within this container.

Methods inherited from class javax.swing.JApplet

addImpl, 
createRootPane, 
getAccessibleContext, 
getContentPane, 
getGlassPane, 
getJMenuBar, 
getLayeredPane, 
getRootPane, 
isRootPaneCheckingEnabled, 
paramString, 
processKeyEvent, 
setContentPane, 
setGlassPane, 
setJMenuBar, 
setLayeredPane, 
setRootPane, 
setRootPaneCheckingEnabled, 
update

Methods inherited from class java.applet.Applet

destroy, 
getAppletContext, 
getAppletInfo, 
getAudioClip, 
getAudioClip, 
getCodeBase, 
getDocumentBase, 
getImage, 
getImage, 
getLocale, 
getParameter, 
getParameterInfo, 
isActive, 
newAudioClip, 
play, 
play, 
resize, 
resize, 
setStub, 
showStatus, 
start, 
stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, 
add, 
add, 
add, 
addContainerListener, 
countComponents, 
deliverEvent, 
doLayout, 
findComponentAt, 
findComponentAt, 
getAlignmentX, 
getAlignmentY, 
getComponent, 
getComponentAt, 
getComponentAt, 
getComponentCount, 
getComponents, 
getInsets, 
getLayout, 
getMaximumSize, 
getMinimumSize, 
getPreferredSize, 
insets, 
invalidate, 
isAncestorOf, 
layout, 
list, 
list, 
locate, 
minimumSize, 
paint, 
paintComponents, 
preferredSize, 
print, 
printComponents, 
processContainerEvent, 
processEvent, 
remove, 
removeAll, 
removeContainerListener, 
removeNotify, 
setFont, 
validate, 
validateTree

Methods inherited from class java.awt.Component

action, 
add, 
addComponentListener, 
addFocusListener, 
addInputMethodListener, 
addKeyListener, 
addMouseListener, 
addMouseMotionListener, 
addPropertyChangeListener, 
addPropertyChangeListener, 
bounds, 
checkImage, 
checkImage, 
coalesceEvents, 
contains, 
contains, 
createImage, 
createImage, 
disable, 
disableEvents, 
dispatchEvent, 
enable, 
enable, 
enableEvents, 
enableInputMethods, 
firePropertyChange, 
getBackground, 
getBounds, 
getColorModel, 
getComponentOrientation, 
getCursor, 
getDropTarget, 
getFont, 
getFontMetrics, 
getForeground, 
getGraphics, 
getHeight, 
getInputContext, 
getInputMethodRequests, 
getLocation, 
getLocation, 
getLocationOnScreen, 
getName, 
getParent, 
getPeer, 
getSize, 
getSize, 
getToolkit, 
getTreeLock, 
getWidth, 
getX, 
getY, 
gotFocus, 
handleEvent, 
hasFocus, 
hide, 
imageUpdate, 
inside, 
isDisplayable, 
isDoubleBuffered, 
isEnabled, 
isFocusTraversable, 
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, 
processInputMethodEvent, 
processMouseEvent, 
processMouseMotionEvent, 
remove, 
removeComponentListener, 
removeFocusListener, 
removeInputMethodListener, 
removeKeyListener, 
removeMouseListener, 
removeMouseMotionListener, 
removePropertyChangeListener, 
removePropertyChangeListener, 
repaint, 
repaint, 
repaint, 
repaint, 
requestFocus, 
reshape, 
setBackground, 
setBounds, 
setBounds, 
setComponentOrientation, 
setCursor, 
setDropTarget, 
setEnabled, 
setForeground, 
setLocale, 
setLocation, 
setLocation, 
setName, 
setSize, 
setSize, 
setVisible, 
show, 
show, 
size, 
toString, 
transferFocus

Methods inherited from class java.lang.Object

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

Constructor Detail

TApplet

public TApplet()

Creates a tapestry applet instance.

Method Detail

init

public void init()

Overrides:: init in class java.applet.Applet

getInstance

public static TApplet getInstance()

Returns the single instance of the TApplet. Since only one applet is possible within any given program, this allows universal access to the applet.

Returns:: the one instance of the applet

getCanvas

public TCanvas getCanvas()

Gets the TCanvas within this container.

Returns:: the canvas within this container

add

public java.awt.Component add(java.awt.Component comp)

Adds the specified component to this container replacing the current component within it.

Parameters:: comp - component to be added
Returns:: the component argument
Overrides:: add in class java.awt.Container

remove

public void remove(java.awt.Component comp)

Removes the specified component from this container.

Parameters:: comp - component to be removed
Overrides:: remove in class java.awt.Container

setLayout

public void setLayout(java.awt.LayoutManager mgr)

Sets the layout manager for this container, i.e., how components are arranged within this container.

Parameters:: mgr - the specified layout manager
Overrides:: setLayout in class javax.swing.JApplet

getBounds

public java.awt.Rectangle getBounds()

Returns the applet's boundaries as a rectangle, i.e., upper-left corner (x, y) and dimensions (width, height).

Overrides:: getBounds in class java.awt.Component