/*******************************************************************************
* Copyright (c) 2006-2012
* Software Technology Group, Dresden University of Technology
* DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Software Technology Group - TU Dresden, Germany;
* DevBoost GmbH - Berlin, Germany
* - initial API and implementation
******************************************************************************/
/*
* @(#)TransformEdit.java 2.0 2006-01-14
*
* Copyright (c) 1996-2006 by the original authors of JHotDraw
* and all its contributors.
* All rights reserved.
*
* The copyright of this software is owned by the authors and
* contributors of the JHotDraw project ("the copyright holders").
* You may not use, copy or modify this software, except in
* accordance with the license agreement you entered into with
* the copyright holders. For details see accompanying license terms.
*/
package org.jhotdraw.draw;
import org.jhotdraw.util.*;
import javax.swing.undo.*;
import java.awt.geom.*;
import java.util.*;
/**
* TransformEdit.
* <p>
* FIXME - When we do group moves or moves of a composite figure we fail to
* coallesce the TransformEdit events. This may exhaust memory!
* <p>
* XXX - This edit should use getTransformRestoreData, restoreTransformTo.
* <p>
* FIXME - Maybe TransformEdit should be replaced by GeometryEdit?
*
* @author Werner Randelshofer
* @version 2.0 2006-01-14 Changed to support double precision coordinates.
* <br>1.0 2003-12-01 Derived from JHotDraw 5.4b1.
*/
public class TransformEdit extends AbstractUndoableEdit {
/**
* Implementation note: Owner has package access, because it is accessed
* by CompositeMoveEdit.
*/
private Collection<Figure> figures;
private AffineTransform tx;
/** Creates a new instance. */
public TransformEdit(Figure figure, AffineTransform tx) {
figures = new LinkedList<Figure>();
((LinkedList<Figure>) figures).add(figure);
this.tx = (AffineTransform) tx.clone();
}
public TransformEdit(Collection<Figure> figures, AffineTransform tx) {
this.figures = figures;
this.tx = (AffineTransform) tx.clone();
}
public String getPresentationName() {
ResourceBundleUtil labels = ResourceBundleUtil.getBundle("org.jhotdraw.draw.Labels", Locale.getDefault());
return labels.getString("edit.transform.text");
}
public boolean addEdit(UndoableEdit anEdit) {
if (anEdit instanceof TransformEdit) {
TransformEdit that = (TransformEdit) anEdit;
if (that.figures == this.figures) {
this.tx.concatenate(that.tx);
that.die();
return true;
}
}
return false;
}
public boolean replaceEdit(UndoableEdit anEdit) {
if (anEdit instanceof TransformEdit) {
TransformEdit that = (TransformEdit) anEdit;
if (that.figures == this.figures) {
this.tx.preConcatenate(that.tx);
that.die();
return true;
}
}
return false;
}
public void redo() throws CannotRedoException {
super.redo();
for (Figure f : figures) {
f.willChange();
f.transform(tx);
f.changed();
}
}
public void undo() throws CannotUndoException {
super.undo();
try {
AffineTransform inverse = tx.createInverse();
for (Figure f : figures) {
f.willChange();
f.transform(inverse);
f.changed();
}
} catch (NoninvertibleTransformException e) {
e.printStackTrace();
}
}
public String toString() {
return getClass().getName()+'@'+hashCode()+" tx:"+tx;
}
}