net.sourceforge.webcompmath.applets
Class LaunchButtonApplet

java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by java.awt.Panel
              extended by java.applet.Applet
                  extended by javax.swing.JApplet
                      extended by 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