/*  Copyright (C) 2003-2011 JabRef contributors.
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License along
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package net.sf.jabref.undo;

import javax.swing.undo.AbstractUndoableEdit;

import net.sf.jabref.BasePanel;
import net.sf.jabref.BibtexString;
import net.sf.jabref.Globals;

public class UndoableStringChange extends AbstractUndoableEdit {

    private BibtexString string;
    private String oldValue, newValue;
    private boolean nameChange;
    private BasePanel panel;
    

    public UndoableStringChange(BasePanel panel,
				BibtexString string, boolean nameChange,
				String oldValue, String newValue) {
	this.string = string;
	this.oldValue = oldValue;
	this.newValue = newValue;
	this.nameChange = nameChange;
	this.panel = panel;
    }

    public String getUndoPresentationName() {
	return Globals.lang("Undo")+": "
	    +Globals.lang(nameChange ? "change string name" : "change string content");
    }

    public String getRedoPresentationName() {
	return Globals.lang("Redo")+": "
	    +Globals.lang(nameChange ? "change string name" : "change string content");
    }

    public void undo() {
	super.undo();
	
	// Revert the change.

	panel.assureStringDialogNotEditing();

	if (nameChange)
	    string.setName(oldValue);
	else
	    string.setContent(oldValue);

	panel.updateStringDialog();
    }

    public void redo() {
	super.redo();

	// Redo the change.

	panel.assureStringDialogNotEditing();
	if (nameChange)
	    string.setName(newValue);
	else
	    string.setContent(newValue);

	panel.updateStringDialog();
    }



}