/********************************************************************************
* *
* (c) Copyright 2010 Verizon Communications USA and The Open University UK *
* *
* This software is freely distributed in accordance with *
* the GNU Lesser General Public (LGPL) license, version 3 or later *
* as published by the Free Software Foundation. *
* For details see LGPL: http://www.fsf.org/licensing/licenses/lgpl.html *
* and GPL: http://www.fsf.org/licensing/licenses/gpl-3.0.html *
* *
* This software is provided by the copyright holders and contributors "as is" *
* and any express or implied warranties, including, but not limited to, the *
* implied warranties of merchantability and fitness for a particular purpose *
* are disclaimed. In no event shall the copyright owner or contributors be *
* liable for any direct, indirect, incidental, special, exemplary, or *
* consequential damages (including, but not limited to, procurement of *
* substitute goods or services; loss of use, data, or profits; or business *
* interruption) however caused and on any theory of liability, whether in *
* contract, strict liability, or tort (including negligence or otherwise) *
* arising in any way out of the use of this software, even if advised of the *
* possibility of such damage. *
* *
********************************************************************************/
package com.compendium.ui.edits;
import javax.swing.undo.CannotRedoException;
import javax.swing.undo.CannotUndoException;
import com.compendium.LanguageProperties;
import com.compendium.ui.UIViewFrame;
/**
* The Edit function for undoing/redoing the edit-delete action
*
* @author Beatrix Zimmermann
*/
public class DeleteEdit extends PCEdit {
/** The serial version id */
private static final long serialVersionUID = -5469147081971977733L;
/**
* The constructor.
* @param viewFrame com.compendium.ui.UIViewFrame, the frame for the view having items deleted.
*/
public DeleteEdit (UIViewFrame viewFrame) {
super(viewFrame);
}
/**
* Undoes the last edit operation of this type.
*
* @exception CannotUndoException if <code>canUndo</code> returns <code>false</code>
* @see #canUndo
*/
public void undo() throws CannotUndoException {
unDeleteNodesAndLinks();
}
/**
* Redoes the previous edit of this type.
*
* @exception CannotRedoException if <code>canRedo</code> returns <code>false</code>
* @see #canRedo
*/
public void redo() throws CannotRedoException {
reDeleteNodesAndLinks();
}
/**
* Returns true if this edit is <code>alive</code>
* and <code>hasBeenDone</code> is <code>true</code>.
* HERE: always return true.
*
* @return true if this edit is <code>alive</code> and <code>hasBeenDone</code> is <code>true</code>
*
* @see #undo
* @see #redo
*/
public boolean canUndo() { return true; }
/**
* Returns <code>true</code> if this edit is <code>alive</code>
* and <code>hasBeenDone</code> is <code>false</code>.
* HERE: always return true.
*
* @return <code>true</code> if this edit is <code>alive</code> and <code>hasBeenDone</code> is <code>false</code>
*
* @see #undo
* @see #redo
*/
public boolean canRedo() { return true; }
/**
* Used by <code>getUndoPresentationName</code> and <code>getRedoPresentationName</code> to
* construct the strings they return.
*
* @return the presentation name for this edit.
*/
public String getPresentationName() { return LanguageProperties.getString(LanguageProperties.EDITS_BUNDLE, "DeleteEdit.delete"); } //$NON-NLS-1$
}