org.activemath.applets
Class ConsoleArea

java.lang.Object
  java.awt.Component
      java.awt.TextComponent
          java.awt.TextArea
              org.activemath.applets.ConsoleArea

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable, Accessible

public class ConsoleArea
extends TextArea

This class is a TextArea which behaves like a Unix-Shell.
If the User entered a Command (this means has typed ENTER) an ActionEvent is thrown an the method getActionCommand() of ActionEvent returns a String Representation of the user-input.
After a command was entered the Console is disabled for input until setResult() is called.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.TextArea

TextArea.AccessibleAWTTextArea

Nested classes/interfaces inherited from class java.awt.TextComponent

TextComponent.AccessibleAWTTextComponent

Nested classes/interfaces inherited from class java.awt.Component

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

Field Summary

static Font

consoleFont

Fields inherited from class java.awt.TextArea

SCROLLBARS_BOTH, SCROLLBARS_HORIZONTAL_ONLY, SCROLLBARS_NONE, SCROLLBARS_VERTICAL_ONLY

Fields inherited from class java.awt.TextComponent

textListener

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

ConsoleArea()
A Constructor without parameters Creates a new Console with Default size.

ConsoleArea(int rows, int lines)
The Constructor.

Method Summary

void	addActionListener(ActionListener listener) This Method is used for adding a new ActionListener which will receive ActionEvents from this Component.
void	adjustFont()
String	beautify(String text) This method is to split a OneLineResult into a result that splits the result by the newlines into several lines and removes double newlines.
void	processKeyEvent(KeyEvent e) this Method is envoked if the user types a Key.
void	removeActionListener(ActionListener listener) With this Method you can remove listeners again if you want to.
void	setEditable(boolean flag) Overwrites the setEditable Method of TextArea.
void	setResult(String result) With this Method you can set the result for an entered command.

Methods inherited from class java.awt.TextArea

addNotify, append, appendText, getAccessibleContext, getColumns, getMinimumSize, getMinimumSize, getPreferredSize, getPreferredSize, getRows, getScrollbarVisibility, insert, insertText, minimumSize, minimumSize, paramString, preferredSize, preferredSize, replaceRange, replaceText, setColumns, setRows

Methods inherited from class java.awt.TextComponent

addTextListener, enableInputMethods, getBackground, getCaretPosition, getInputMethodRequests, getListeners, getSelectedText, getSelectionEnd, getSelectionStart, getText, getTextListeners, isEditable, processEvent, processTextEvent, removeNotify, removeTextListener, select, selectAll, setBackground, setCaretPosition, setSelectionEnd, setSelectionStart, setText

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, deliverEvent, disable, disableEvents, dispatchEvent, doLayout, enable, enable, enableEvents, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getAlignmentX, getAlignmentY, getBaseline, getBaselineResizeBehavior, getBounds, getBounds, getColorModel, getComponentAt, getComponentAt, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeys, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getKeyListeners, getLocale, getLocation, getLocation, getLocationOnScreen, getMaximumSize, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, invalidate, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusCycleRoot, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, layout, list, list, list, list, list, locate, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paint, paintAll, postEvent, prepareImage, prepareImage, print, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeys, setFocusTraversalKeysEnabled, setFont, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusBackward, transferFocusUpCycle, update, validate

Methods inherited from class java.lang.Object

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

Field Detail

consoleFont

public static final Font consoleFont

Constructor Detail

ConsoleArea

public ConsoleArea()

A Constructor without parameters Creates a new Console with Default size.

ConsoleArea

public ConsoleArea(int rows,
                   int lines)

The Constructor.
Creates a new Console with the specified number of rows and lines.

Parameters:

rows - The desired number of rows.

lines - The desired number of lines

Method Detail

adjustFont

public void adjustFont()

setEditable

public void setEditable(boolean flag)

Overwrites the setEditable Method of TextArea.
With this Method you can disable or enable the User to do some input to the Console.

Overrides:

setEditable in class TextComponent

Parameters:

flag - This flag indicates wether the Console should be editable or not.

setResult

public void setResult(String result)

With this Method you can set the result for an entered command.
It will always occur just beneath the entered command and above the actual Command prompt.

Parameters:

result - The result to be inserted into the Console.

beautify

public String beautify(String text)

This method is to split a OneLineResult into a result that splits the result by the newlines into several lines and removes double newlines.

processKeyEvent

public void processKeyEvent(KeyEvent e)

this Method is envoked if the user types a Key.

Overrides:

processKeyEvent in class Component

addActionListener

public void addActionListener(ActionListener listener)

This Method is used for adding a new ActionListener which will receive ActionEvents from this Component.

Parameters:

listener - the class which implements the Interface and should be noticed of Events.

removeActionListener

public void removeActionListener(ActionListener listener)

With this Method you can remove listeners again if you want to.

Parameters:

listener - the listener-class which should be removed.