de.must.wuic

Class VersionController

java.lang.Object

de.must.wuic.VersionController

public class VersionController
extends java.lang.Object

Version Controller of text components supporting undo.

Constructor Summary

Constructors

Constructor and Description
VersionController()

Method Summary

Modifier and Type	Method and Description
java.lang.String	getFormerContent() Returns former content, check hasFormerContent() before.
boolean	hasFormerContent() Indicates whether or not there is former content available.
void	interpret(java.awt.event.KeyEvent e, java.lang.String content, Undoable undoable) Delegates key event handling to this class in order to check what to do: create a new version or undo.
void	notifyChange(java.lang.String newContent, boolean delay)
void	reset(java.lang.String content) Indicates the beginning of versioning.

Methods inherited from class java.lang.Object

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

Constructor Detail

VersionController

public VersionController()

Method Detail

reset

public void reset(java.lang.String content)

Indicates the beginning of versioning.

Parameters:

content - the initial content

interpret

public void interpret(java.awt.event.KeyEvent e,
                      java.lang.String content,
                      Undoable undoable)

Delegates key event handling to this class in order to check what to do: create a new version or undo.

Parameters:

e - the current key event

content - the current content of the class

undoable - the interface to call the undo function

notifyChange

public void notifyChange(java.lang.String newContent,
                         boolean delay)

hasFormerContent

public boolean hasFormerContent()

Indicates whether or not there is former content available.

Returns:

true there is former content available

getFormerContent

public java.lang.String getFormerContent()

Returns former content, check hasFormerContent() before.

Returns:

former content