edu.uah.math.devices

Class Spinner

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

edu.uah.math.devices.Spinner

All Implemented Interfaces:

java.awt.event.MouseMotionListener, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.util.EventListener

public class Spinner
extends javax.swing.JComponent
implements java.awt.event.MouseMotionListener, java.io.Serializable

This class models a simple spinner. The number of sectors and the probability distribution that governs the spinner can be specified. The size of the each sector is proportional to the probability of the sector.

Version:

August, 2003

Author:

Dawn Duehring, Kyle Siegrist

See Also:

Serialized Form

Nested Class Summary

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

javax.swing.JComponent.AccessibleJComponent

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

Fields inherited from class javax.swing.JComponent

accessibleContext, listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

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

Constructors

Constructor and Description
Spinner() This default constructor creates a new spinner with four equal divisions.
Spinner(double[] p) This special constructor creates a new spinner with a specified array of probabilities and a the default array of colors.
Spinner(double[] p, java.awt.Color[] c) This general constructor creates a new spinner with a specified array of probabilities and a specified array of colors.
Spinner(int n) This special constuctor creates a new spinner with a specified number of equal sized divisions and the default array of colors.
Spinner(int n, java.awt.Color[] c) This special constuctor creates a new spinner with a specified number of equal sized divisions and a specified array of colors.

Method Summary

Methods

Modifier and Type	Method and Description
double	getAngle() This method returns the angle.
java.awt.Color[]	getColors() This method returns the array of colors
java.awt.Color	getColors(int i) This method returns an individual color
int	getDivisions() This method returns the number of divisions.
double[]	getProbabilities() This method returns the all of the probabilities.
double	getProbabilities(int i) This method returns an individual probability.
int	getValue() This method returns the current value of the spinner
int	getValue(double a) This method computes the value (sector number) corresponding to a give angle.
void	mouseDragged(java.awt.event.MouseEvent event)
void	mouseMoved(java.awt.event.MouseEvent e) This method handles the mouse move event.
void	paintComponent(java.awt.Graphics g) This method paints the spinner based on the number of divisions and paints the pointer based on the random angle computed in the spin method.
void	setAngle(double a) This method sets a specific angle measure and computes the value of the spin corresponding to that angle.
void	setColors(java.awt.Color[] c) This method sets the array of colors.
void	setColors(int i, java.awt.Color c) This method sets an individual color.
void	setDefaultColors() This method defines the default color array.
void	setDivisions(int n) This method sets the number of divisions.
void	setProbabilities(double[] p) This method sets the array of probabilities.
void	setProbabilities(int i, double p) This method sets an individual probability.
void	spin() This method "spins" the spinner by computing a random angle and the value of a spin based on that angle.

Methods inherited from class javax.swing.JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getUIClassID, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update, updateUI

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, 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, createImage, createImage, createVolatileImage, createVolatileImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getForeground, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocale, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getToolkit, getTreeLock, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setFocusable, setFocusTraversalKeysEnabled, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Constructor Detail

Spinner

public Spinner(double[] p,
       java.awt.Color[] c)

This general constructor creates a new spinner with a specified array of probabilities and a specified array of colors. The size of the array is the number of divisions..The areas of the sectors are proportional to the probabilities.

Parameters:

p - the array of probabilities

c - the array of colors

Spinner

public Spinner(double[] p)

This special constructor creates a new spinner with a specified array of probabilities and a the default array of colors. The size of the array is the number of divisions..The areas of the sectors are proportional to the probabilities.

Parameters:

p - the array of probabilities

Spinner

public Spinner(int n,
       java.awt.Color[] c)

This special constuctor creates a new spinner with a specified number of equal sized divisions and a specified array of colors. Thus the probability distribution is uniform.

Parameters:

n - the number of divisions

c - the array of colors

Spinner

public Spinner(int n)

This special constuctor creates a new spinner with a specified number of equal sized divisions and the default array of colors. Thus the probability distribution is uniform.

Parameters:

n - the number of divisions

Spinner

public Spinner()

This default constructor creates a new spinner with four equal divisions.

Method Detail

setProbabilities

public void setProbabilities(double[] p)

This method sets the array of probabilities. Error checking is performed to ensure that the probabilities are nonnegative and sum to 1. The sizes of the sectors are computed.

Parameters:

p - the array of probabilities

getProbabilities

public double[] getProbabilities()

This method returns the all of the probabilities.

Returns:

the array of probabilities

setProbabilities

public void setProbabilities(int i,
                    double p)

This method sets an individual probability. The other probabilities would be rescaled appropriately.

Parameters:

i - the index

p - the probability

getProbabilities

public double getProbabilities(int i)

This method returns an individual probability.

Parameters:

i - the index

Returns:

the probability corresponding to the index.

setColors

public void setColors(java.awt.Color[] c)

This method sets the array of colors.

Parameters:

c - the array of colors.

getColors

public java.awt.Color[] getColors()

This method returns the array of colors

Returns:

the array of colors

setColors

public void setColors(int i,
             java.awt.Color c)

This method sets an individual color.

Parameters:

i - the index

c - the color of the index

getColors

public java.awt.Color getColors(int i)

This method returns an individual color

Parameters:

i - the index

Returns:

the color of the index.

setDefaultColors

public void setDefaultColors()

This method defines the default color array. This array cylces among the 10 basic colors

setDivisions

public void setDivisions(int n)

This method sets the number of divisions. The default unfiform probabilities and colors are specified.

Parameters:

n - the number of divisions

getDivisions

public int getDivisions()

This method returns the number of divisions.

setAngle

public void setAngle(double a)

This method sets a specific angle measure and computes the value of the spin corresponding to that angle.

Parameters:

a - the angle of the pointer relative to the horizontal ray

getAngle

public double getAngle()

This method returns the angle.

Returns:

the angle

spin

public void spin()

This method "spins" the spinner by computing a random angle and the value of a spin based on that angle.

getValue

public int getValue(double a)

This method computes the value (sector number) corresponding to a give angle.

Parameters:

a - the angle

Returns:

the value

getValue

public int getValue()

This method returns the current value of the spinner

Returns:

the number of the sector containing the spinner pointer.

paintComponent

public void paintComponent(java.awt.Graphics g)

This method paints the spinner based on the number of divisions and paints the pointer based on the random angle computed in the spin method.

Overrides:

paintComponent in class javax.swing.JComponent

Parameters:

g - the graphics context

mouseMoved

public void mouseMoved(java.awt.event.MouseEvent e)

This method handles the mouse move event. The coordinates of the mouse (in scale units) are tracked.

Specified by:

mouseMoved in interface java.awt.event.MouseMotionListener

Parameters:

e - the mouse event

mouseDragged

public void mouseDragged(java.awt.event.MouseEvent event)

Specified by:

mouseDragged in interface java.awt.event.MouseMotionListener