Class PiAWT

java.lang.Object

java.awt.Component

java.awt.Container

java.awt.Panel

org.apfloat.samples.PiAWT

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible

Direct Known Subclasses:

PiParallelAWT

public class PiAWT
extends Panel

Graphical AWT elements for calculating pi using four different algorithms.

Version:

1.14.0

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	PiAWT.FlushStringWriter
static interface	PiAWT.StatusIndicator	Interface to indicate an error status in the application.

Nested classes/interfaces inherited from class Panel

Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field	Description
private Button	abortButton
private Checkbox	borwein
private List<BuilderFactory>	builderFactories
private Thread	calculatorThread
private Checkbox	chudnovsky
private Checkbox	gaussLegendre
private Button	goButton
private Choice	implementationChoice
private Label	implementationLabel
private Label	methodLabel
private CheckboxGroup	methods
private TextField	precisionField
private Label	precisionLabel
private Choice	radixChoice
private Label	radixLabel
private Checkbox	ramanujan
private TextArea	resultArea
private Label	resultLabel
private static final long	serialVersionUID
private TextArea	statusArea
private PiAWT.StatusIndicator	statusIndicator
private Label	statusLabel

Fields inherited from class Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface ImageObserver

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

Constructor Summary

Constructors

Constructor	Description
PiAWT(PiAWT.StatusIndicator statusIndicator)	Construct a panel with graphical elements.

Method Summary

Modifier and Type	Method	Description
private void	aborted()
private void	crashed(Throwable cause)
private void	end()
protected Operation<Apfloat>	getOperation(long precision, int radix)	Get the calculation operation to execute.
private void	initGUI()
protected void	initThreads(Container container, GridBagConstraints constraints)	Initialize the "threads" section GUI elements.
protected boolean	isInputValid()	Validates the input fields.
protected void	showStatus(String status)	Show the specified error status.
private void	startThread()
private void	stopThread()

Methods inherited from class Panel

addNotify, getAccessibleContext

Methods inherited from class 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, isValidateRoot, 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, transferFocusDownCycle, update, validate, validateTree

Methods inherited from class 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, getLocale, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, 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, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, revalidate, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setMixingCutoutShape, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

statusIndicator

private PiAWT.StatusIndicator statusIndicator

precisionLabel

private Label precisionLabel

precisionField

private TextField precisionField

radixLabel

private Label radixLabel

radixChoice

private Choice radixChoice

methodLabel

private Label methodLabel

methods

private CheckboxGroup methods

chudnovsky

private Checkbox chudnovsky

ramanujan

private Checkbox ramanujan

gaussLegendre

private Checkbox gaussLegendre

borwein

private Checkbox borwein

implementationLabel

private Label implementationLabel

implementationChoice

private Choice implementationChoice

goButton

private Button goButton

abortButton

private Button abortButton

statusLabel

private Label statusLabel

statusArea

private TextArea statusArea

resultLabel

private Label resultLabel

resultArea

private TextArea resultArea

builderFactories

private List<BuilderFactory> builderFactories

calculatorThread

private Thread calculatorThread

Constructor Details

PiAWT

public PiAWT(PiAWT.StatusIndicator statusIndicator)

Construct a panel with graphical elements.

Parameters:

statusIndicator - Handler for showing error messages in the application.

Method Details

initGUI

private void initGUI()

initThreads

protected void initThreads(Container container,
 GridBagConstraints constraints)

Initialize the "threads" section GUI elements. Elements should be added for the remainder of the width of the container.

Parameters:

container - The container where the elements are to be added.

constraints - The constraints with which the elements are to be added to the container.

isInputValid

protected boolean isInputValid()

Validates the input fields.

Returns:

true if all input fields contain valid values, otherwise false.

showStatus

protected void showStatus(String status)

Show the specified error status.

Parameters:

status - The status.

getOperation

protected Operation<Apfloat> getOperation(long precision,
 int radix)
                                   throws ApfloatRuntimeException

Get the calculation operation to execute.

Parameters:

precision - The precision to be used.

radix - The radix to be used.

Returns:

The calculation operation to execute.

Throws:

ApfloatRuntimeException

startThread

private void startThread()

stopThread

private void stopThread()

aborted

private void aborted()

crashed

private void crashed(Throwable cause)

end

private void end()