net.sourceforge.webcompmath.applets
Class LaunchButtonApplet

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javax.swing.JApplet
                      net.sourceforge.webcompmath.applets.LaunchButtonApplet

All Implemented Interfaces:

java.awt.event.ActionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener, javax.accessibility.Accessible, javax.swing.RootPaneContainer

public class LaunchButtonApplet
extends javax.swing.JApplet
implements java.awt.event.ActionListener

Button applet for launching other applets. This applet can be used on a web page and open up a standalone window to display a different applet. You can use parameters to specify the text to be displayed on the button, the title of the window that is opened, the class to be opened in the window (a JApplet, JFrame, or JPanel), and the width and height of the window.

The following applet parameters can be set for this applet:

Class - the name of the JApplet, JFrame, or JPanel to be launched. if the class is in a package, then this must include the full package name, such as net.sourceforge.webcompmath.applets.SimpleGraphApplet.

ButtonName - the name to be displayed on the launch button. If not provided, the button will read "Launch name", where name will be replaced with the class name.

FrameTitle - the title of the frame to be opened.

FrameSize - the size of the frame to be opened. This is a list of two numbers, the default is 550,400 (i.e., 550 wide by 400 high).

ButtonBackgroundColor - the background color of the button. One of "black", "red", "blue", "green", "yellow", "cyan", "magenta", "gray", "darkgray", "lightgray", "pink", "orange", "white". The default is lightgray.

ButtonForegroundColor - the color of the text for the button. One of the colors listed above. The default is black.

Author:

Tom Downey

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

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 int[]

defaultFrameSize The default size for the frame when the applet runs a launch button.

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

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

LaunchButtonApplet()

Method Summary

void	actionPerformed(java.awt.event.ActionEvent evt) Respond when user clicks a button; not meant to be called directly.
protected java.awt.Color	getColorParam(java.lang.String data) Get The value of an applet parameter that specifies a color.
protected java.awt.Color	getColorParam(java.lang.String paramName, java.awt.Color defaultColor) Get The value of an applet parameter that specifies a color.
protected double[]	getNumericParam(java.lang.String paramName) Get The value of an applet parameter that consists of a list of numbers.
protected double[]	getNumericParam(java.lang.String paramName, double[] defaults) Get The value of an applet parameter that consists of a list of numbers.
void	init()

Methods inherited from class javax.swing.JApplet

addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getGraphics, getJMenuBar, getLayeredPane, getRootPane, getTransferHandler, isRootPaneCheckingEnabled, paramString, remove, repaint, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, setTransferHandler, 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, add, addContainerListener, 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, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, 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, 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, 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

Field Detail

defaultFrameSize

protected int[] defaultFrameSize

The default size for the frame when the applet runs a launch button. Can be overidden by the FrameSize applet param.

Constructor Detail

LaunchButtonApplet

public LaunchButtonApplet()

Method Detail

init

public void init()

Overrides:

init in class java.applet.Applet

See Also:

Applet.init()

actionPerformed

public void actionPerformed(java.awt.event.ActionEvent evt)

Respond when user clicks a button; not meant to be called directly.

Specified by:

actionPerformed in interface java.awt.event.ActionListener

Parameters:

evt - event generated when user clicks a button

getNumericParam

protected double[] getNumericParam(java.lang.String paramName)

Get The value of an applet parameter that consists of a list of numbers. The parameter value, if any, is parsed and returned as array of double values. The numbers can be separated by commas, spaces, tabs, or semicolons. If there is a parse error, null is returned.

Parameters:

paramName - the name of the parameter to get

Returns:

the parameter's value

getNumericParam

protected double[] getNumericParam(java.lang.String paramName,
                                   double[] defaults)

Get The value of an applet parameter that consists of a list of numbers. The parameter value, if any, is parsed and returned as array of double values. The numbers can be separated by commas, spaces, tabs, or semicolons.

Parameters:

paramName - The name of the applet parameter.

defaults - The value to be returned if getParameter(paramName) is null or is not a valid list of numbers.

Returns:

the parameter's array of values

getColorParam

protected java.awt.Color getColorParam(java.lang.String data)

Get The value of an applet parameter that specifies a color. The color can be specfied as a list of three numbers in the range 0 to 255 or by one of the standard color names ("black", "red", "blue", "green", "yellow", "cyan", "magenta", "gray", "darkgray", "lightgray", "pink", "orange", "white"). Color names are not case sensitive. If the value of the applet parameter is null does not specify a legal color, then the return value is null.

Parameters:

data - the name of the parameter

Returns:

value of the parameter

getColorParam

protected java.awt.Color getColorParam(java.lang.String paramName,
                                       java.awt.Color defaultColor)

Get The value of an applet parameter that specifies a color. The color can be specfied as a list of three numbers in the range 0 to 255 or by one of the standard color names ("black", "red", "blue", "green", "yellow", "cyan", "magenta", "gray", "darkgray", "lightgray", "pink", "orange", "white"). Color names are not case sensitive.

Parameters:

paramName - The name of the applet parameter.

defaultColor - The value to be returned if getParameter(paramName) is null or is not a valid color.

Returns:

the parameter's value as a Color