jfrace.terminal
Class SimpleTerminal

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Canvas
              |
              +--jfrace.terminal.SimpleTerminal

All Implemented Interfaces:

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

public class SimpleTerminal

extends java.awt.Canvas

implements Terminal

A simple alphanumerical terminal.

Author:

Franz-Josef Elmer

See Also:

Serialized Form

Inner classes inherited from class java.awt.Canvas

java.awt.Canvas.AccessibleAWTCanvas

Inner classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent

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

SimpleTerminal()

Method Summary

void	addActionListener(java.awt.event.ActionListener al) Add an action listener.
void	clearScreen() Clear screen and set the cursor into the upper left corner.
Device	getDevice() Returns null.
java.lang.String	getName() Returns "Simple Terminal".
char	getNextChar() Get the next character typed in.
boolean	isEmpty() Return true if there is no character typed.
boolean	isFocusTraversable() Return true because focus should be traversable with TAB key.
void	paint(java.awt.Graphics g)
java.awt.Dimension	preferredSize()
char	readChar() Return a typed character if available.
void	removeActionListener(java.awt.event.ActionListener al) Remove an action listener.
void	update(java.awt.Graphics g)
void	writeChar(char c) Write a character onto the screen.

Methods inherited from class java.awt.Canvas

addNotify, getAccessibleContext

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addPropertyChangeListener, addPropertyChangeListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, enableInputMethods, firePropertyChange, getAlignmentX, getAlignmentY, getBackground, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentOrientation, getCursor, getDropTarget, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getInputContext, getInputMethodRequests, getListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMinimumSize, getParent, getPeer, getPreferredSize, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isDisplayable, isDoubleBuffered, isEnabled, isLightweight, isOpaque, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, minimumSize, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, paramString, postEvent, prepareImage, prepareImage, print, printAll, processComponentEvent, processEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFont, setForeground, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, show, size, toString, transferFocus, validate

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleTerminal

public SimpleTerminal()

Method Detail

addActionListener

public void addActionListener(java.awt.event.ActionListener al)

Add an action listener.

removeActionListener

public void removeActionListener(java.awt.event.ActionListener al)

Remove an action listener.

isFocusTraversable

public boolean isFocusTraversable()

Return true because focus should be traversable with TAB key.

Overrides:

isFocusTraversable in class java.awt.Component

preferredSize

public java.awt.Dimension preferredSize()

Overrides:

preferredSize in class java.awt.Component

clearScreen

public void clearScreen()

Clear screen and set the cursor into the upper left corner.

update

public void update(java.awt.Graphics g)

Overrides:

update in class java.awt.Component

paint

public void paint(java.awt.Graphics g)

Overrides:

paint in class java.awt.Canvas

getName

public java.lang.String getName()

Returns "Simple Terminal".

Specified by:

getName in interface Terminal

Overrides:

getName in class java.awt.Component

getDevice

public Device getDevice()

Returns null.

Specified by:

getDevice in interface Terminal

isEmpty

public boolean isEmpty()

Description copied from interface: Terminal

Return true if there is no character typed.

Specified by:

isEmpty in interface Terminal

readChar

public char readChar()

Description copied from interface: Terminal

Return a typed character if available. Otherwise '\0' is returned. Note that an available character can be read only once.

Specified by:

readChar in interface Terminal

Following copied from interface: jfrace.Terminal

See Also:

getNextChar

getNextChar

public char getNextChar()

Description copied from interface: Terminal

Get the next character typed in. If no character is available the method is waiting until the user enters a character.

Specified by:

getNextChar in interface Terminal

Following copied from interface: jfrace.Terminal

See Also:

readChar

writeChar

public void writeChar(char c)

Write a character onto the screen. The following control characters will be treated specially:

\r
\n
\t
\f
\b

Specified by:

writeChar in interface Terminal