org.formaria.awt
Class Applet

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  org.formaria.awt.Applet

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, PersistentState, StartupObject

public class Applet
extends java.applet.Applet
implements StartupObject

This class is constructed with a window or frame and can be part of an applet or an application. The class acts as the main entry point to an Aria application and provides some of the infrastructure needed to support the application.

The applet can provide support for a frameset or a single page. Page display functions are also supported to allow the application to display more than a single page or change the page that is displayed.

By choosing either the AWT or Swing version of the Applet you choose to have either an AWT or a Swing application/applet. In general once this choice has been made you should not mix toolkits.

Copyright (c) Formaria Ltd.,
License: see license.txt

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

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

Field Summary

protected ApplicationContext	applicationContext
protected java.awt.Window	appWindow
protected boolean	bUseWindow
protected java.awt.Frame	clientFrame
protected java.awt.Panel	pageHolder

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

Applet()
A default constructor.

Applet(java.lang.String[] args, java.awt.Frame f)
Create a new application.

Method Summary

java.lang.Object	displayDecoration(PageSupport page, java.lang.String constraint) Display a window decoration, for example a toolbar
java.lang.Object	getApplicationMenuBar() Get the menubar, setting it up if it is not already added to the application frame
java.lang.Object	getContentPaneEx() Get the content pane used by Aria - the container in which pages are displayed
java.awt.Frame	getFrame() Gets the Frame containing the applet.
java.lang.Object	getParentObject() Get the parent object
java.lang.String	getWidgetClassPackage() Get the package name for the default widget set
void	init() Invoked when used as an applet.
static void	main(java.lang.String[] args) main method to be invoked as an application.
void	refresh() Validate and repaint the display
void	restoreState(XmlElement stateElement) Restore the application state
void	restoreViews() Restore the normal page views, as in the case of the docking layout where panels may be zoomed or minimized.
void	saveState(XmlElement stateElement) Save the application state
void	setApplicationMenuBar(java.lang.Object mb) Set the menubar
void	setAppTitle(java.lang.String title) Set the application title.
void	setIcon(java.awt.Image icon) Set the application icon
void	setMenuBar(java.awt.MenuBar mb) Set the menubar.
void	setupFrameset(java.util.Hashtable params) Setup frameset.
void	setupWindow(ApplicationContext context, Project currentProject, int clientWidth, int clientHeight) Setup the windowing.

Methods inherited from class java.applet.Applet

destroy, getAccessibleContext, 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, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, paramString, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, 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, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBaseline, getBaselineResizeBehavior, 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, getMousePosition, 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, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, 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, setMaximumSize, setMinimumSize, setName, setPreferredSize, 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

Methods inherited from interface org.formaria.aria.StartupObject

getDocumentBase, getParameter, setSize, validate

Field Detail

appWindow

protected java.awt.Window appWindow

clientFrame

protected java.awt.Frame clientFrame

pageHolder

protected java.awt.Panel pageHolder

bUseWindow

protected boolean bUseWindow

applicationContext

protected ApplicationContext applicationContext

Constructor Detail

Applet

public Applet()

A default constructor. Most of the setup work is actually done by the initialize method and is called by the main method or the init method depending on whether or not an application of applet is being launched.

Parameters:

args - the application command-line arguments

frame - the parent frame

Applet

public Applet(java.lang.String[] args,
              java.awt.Frame f)

Create a new application. Most of the setup work is actually done by the initialize method and is called by the main method or the init method depending on whether or not an application of applet is being launched.

Parameters:

args - the application command-line arguments

frame - the parent frame

Method Detail

main

public static void main(java.lang.String[] args)

main method to be invoked as an application. This method is invoked as the entry point to the 'Application', it is not used if an Applet is being launched. This method establishes the frame within which the application runs. If overloading this method remeber to call the setup method.

Parameters:

args - the command line arguments

getParentObject

public java.lang.Object getParentObject()

Get the parent object

Specified by:

getParentObject in interface StartupObject

Returns:

the parent

getWidgetClassPackage

public java.lang.String getWidgetClassPackage()

Get the package name for the default widget set

Specified by:

getWidgetClassPackage in interface StartupObject

Returns:

the class name of the widget set

setupFrameset

public void setupFrameset(java.util.Hashtable params)

Setup frameset. This method is called prior to the addition of any target areas in the framset and prior to the display of any pages. Since this applet does not support configurable framesets, this method ignores the parameter values passed.

Specified by:

setupFrameset in interface StartupObject

Parameters:

params - the framset parameters if any

displayDecoration

public java.lang.Object displayDecoration(PageSupport page,
                                          java.lang.String constraint)

Display a window decoration, for example a toolbar

Specified by:

displayDecoration in interface StartupObject

Parameters:

page - the new page

constraint - a value controlling how and where the decoration is displayed, this value is application type specific

Returns:

the page being displayed

refresh

public void refresh()

Validate and repaint the display

Specified by:

refresh in interface StartupObject

restoreViews

public void restoreViews()

Restore the normal page views, as in the case of the docking layout where panels may be zoomed or minimized. The method is called prior to the display of a new page.

In this context the method has no effect.

Specified by:

restoreViews in interface StartupObject

getContentPaneEx

public java.lang.Object getContentPaneEx()

Description copied from interface: StartupObject

Get the content pane used by Aria - the container in which pages are displayed

Specified by:

getContentPaneEx in interface StartupObject

Returns:

the page container

setAppTitle

public void setAppTitle(java.lang.String title)

Description copied from interface: StartupObject

Set the application title. This method is called just before the first page is displayed, when all the other resources should have been loaded.

Specified by:

setAppTitle in interface StartupObject

setIcon

public void setIcon(java.awt.Image icon)

Set the application icon

Specified by:

setIcon in interface StartupObject

Parameters:

img - the image name

setupWindow

public void setupWindow(ApplicationContext context,
                        Project currentProject,
                        int clientWidth,
                        int clientHeight)

Setup the windowing.

Specified by:

setupWindow in interface StartupObject

Parameters:

context - the owner application context

currentProject - the owner project

clientWidth - the desired width of the application

clientHeight - the desired height of the application

init

public void init()

Invoked when used as an applet. Sets up the startup file and initialises the application. Reads the applet parameters and calls initialize.

Overrides:

init in class java.applet.Applet

getFrame

public java.awt.Frame getFrame()

Gets the Frame containing the applet.

Returns:

Frame which is the applet or application's parent

setMenuBar

public void setMenuBar(java.awt.MenuBar mb)

Set the menubar.

Parameters:

mb - the new menu bar

getApplicationMenuBar

public java.lang.Object getApplicationMenuBar()

Get the menubar, setting it up if it is not already added to the application frame

Specified by:

getApplicationMenuBar in interface StartupObject

Returns:

the menu bar

setApplicationMenuBar

public void setApplicationMenuBar(java.lang.Object mb)

Set the menubar

Specified by:

setApplicationMenuBar in interface StartupObject

Parameters:

mb - the menubar

restoreState

public void restoreState(XmlElement stateElement)

Restore the application state

Specified by:

restoreState in interface PersistentState

saveState

public void saveState(XmlElement stateElement)

Save the application state

Specified by:

saveState in interface PersistentState

Parameters:

the - elements to hold the page state