palmed.edit.selection
Class NewLineInsertion

java.lang.Object
  palmed.edit.selection.AbstractAction
      palmed.edit.selection.NewLineInsertion

All Implemented Interfaces:

IAction

public final class NewLineInsertion
extends AbstractAction

This class implements an action to replace the selection (if any) with a new line.

Version:

$Revision$ $Date$

Author:

Mathieu Champlon

Constructor Summary

NewLineInsertion(ISelection selection, IText text, Coordinate insertion)
Create an enter action.

Method Summary

boolean	merge(IAction action) Merge another action.
protected void	onPerform() Perform the action.
protected boolean	onRedo() Redo the action.
protected boolean	onUndo() Undo the action.

Methods inherited from class palmed.edit.selection.AbstractAction

backupData, overwriteFinalState, perform, prependData, redo, restoreData, undo

Methods inherited from class java.lang.Object

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

Constructor Detail

NewLineInsertion

public NewLineInsertion(ISelection selection,
                        IText text,
                        Coordinate insertion)

Create an enter action.

Parameters:

selection - the selection

text - the text

insertion - the insertion position

Method Detail

onPerform

protected void onPerform()

Perform the action.

Specified by:

onPerform in class AbstractAction

onUndo

protected boolean onUndo()

Undo the action.

Specified by:

onUndo in class AbstractAction

Returns:

Whether the initial state must be restored or not

onRedo

protected boolean onRedo()

Redo the action.

Specified by:

onRedo in class AbstractAction

Returns:

Whether the final state must be restored or not

merge

public boolean merge(IAction action)

Merge another action.

Parameters:

action - the action to merge

Returns:

whether the merging was possible or not