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Viewing changes to src/org/openscience/cdk/applications/undoredo/BondChangeEdit.java

  • Committer: Bazaar Package Importer
  • Author(s): Paul Cager
  • Date: 2008-04-09 21:17:53 UTC
  • Revision ID: james.westby@ubuntu.com-20080409211753-46lmjw5z8mx5pd8d
Tags: upstream-1.0.2
Import upstream version 1.0.2

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src/org/openscience/cdk/applications/undoredo/BondChangeEdit.java
 
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/* $RCSfile$
 
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 * $Author: egonw $
 
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 * $Date: 2007-05-01 21:15:34 +0200 (Tue, 01 May 2007) $
 
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 * $Revision: 8292 $
 
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 *
 
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 * Copyright (C) 2005-2007  The Chemistry Development Kit (CDK) project
 
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 *
 
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 * Contact: cdk-devel@lists.sourceforge.net
 
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 *
 
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 * This program is free software; you can redistribute it and/or
 
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 * modify it under the terms of the GNU Lesser General Public License
 
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 * as published by the Free Software Foundation; either version 2.1
 
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 * of the License, or (at your option) any later version.
 
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 *
 
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 * This program is distributed in the hope that it will be useful,
 
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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 * GNU Lesser General Public License for more details.
 
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 *
 
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 * You should have received a copy of the GNU Lesser General Public License
 
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 * along with this program; if not, write to the Free Software
 
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 
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 */
 
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package org.openscience.cdk.applications.undoredo;
 
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import javax.swing.undo.AbstractUndoableEdit;
 
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import javax.swing.undo.CannotRedoException;
 
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import javax.swing.undo.CannotUndoException;
 
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import org.openscience.cdk.interfaces.IAtomContainer;
 
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import org.openscience.cdk.interfaces.IBond;
 
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import org.openscience.cdk.interfaces.IChemModel;
 
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import org.openscience.cdk.tools.manipulator.ChemModelManipulator;
 
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/**
 
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 * @cdk.module control
 
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 */
 
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public class BondChangeEdit extends AbstractUndoableEdit {
 
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    private static final long serialVersionUID = -2723716036619377584L;
 
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    private IBond newBond;
 
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        private IBond formerBond;
 
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        private IChemModel chemModel;
 
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        public BondChangeEdit(IChemModel chemModel, IBond formerBond, IBond newBond) {
 
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                this.chemModel = chemModel;
 
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                this.formerBond = formerBond;
 
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                this.newBond = newBond;
 
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                if (formerBond != null) {
 
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                        formerBond.setAtom(newBond.getAtom(0), 0);
 
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                        formerBond.setAtom(newBond.getAtom(1), 1);
 
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                }
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.undo.UndoableEdit#redo()
 
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         */
 
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        public void redo() throws CannotRedoException {
 
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                IAtomContainer container = ChemModelManipulator.getRelevantAtomContainer(chemModel, formerBond);
 
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                container.removeBond(formerBond);
 
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                container.addBond(newBond);
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.undo.UndoableEdit#undo()
 
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         */
 
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        public void undo() throws CannotUndoException {
 
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                System.out.println("BondChangeEdit undo");
 
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                IAtomContainer container = ChemModelManipulator.getRelevantAtomContainer(chemModel, newBond);
 
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                container.removeBond(newBond);
 
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                container.addBond(formerBond);
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.undo.UndoableEdit#canRedo()
 
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         */
 
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        public boolean canRedo() {
 
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                return true;
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.undo.UndoableEdit#canUndo()
 
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         */
 
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        public boolean canUndo() {
 
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                return true;
 
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        }
 
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        /*
 
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         * (non-Javadoc)
 
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         * 
 
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         * @see javax.swing.undo.UndoableEdit#getPresentationName()
 
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         */
 
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        public String getPresentationName() {
 
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                return "Change Bond";
 
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        }
 
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}