/*******************************************************************************
* 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
******************************************************************************/
/*
* @(#)EllipseFigure.java 2.4 2006-12-23
*
* 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.geom.Geom;
import org.jhotdraw.util.*;
import java.awt.*;
import java.awt.geom.*;
import static org.jhotdraw.draw.AttributeKeys.*;
/**
* EllipseFigure.
*
* @author Werner Randelshofer
* @version 2.4 2006-12-12 Made ellipse protected.
* <br>2.3 2006-06-17 Added method chop(Point2D.Double).
* <br>2.2 2006-05-19 Support for stroke placement added.
* <br>2.1 2006-03-22 Method getFigureDrawBounds added.
* <br>2.0 2006-01-14 Changed to support double precison coordinates.
* <br>1.0 2003-12-01 Derived from JHotDraw 5.4b1.
*/
public class EllipseFigure extends AbstractAttributedFigure {
protected Ellipse2D.Double ellipse;
/** Creates a new instance. */
public EllipseFigure() {
this(0, 0, 0, 0);
}
public EllipseFigure(double x, double y, double width, double height) {
ellipse = new Ellipse2D.Double(x, y, width, height);
/*
setFillColor(Color.white);
setStrokeColor(Color.black);
*/
setAttributeEnabled(TEXT_COLOR, false);
}
// DRAWING
// SHAPE AND BOUNDS
// ATTRIBUTES
// EDITING
// CONNECTING
@Override
public Connector findConnector(Point2D.Double p, ConnectionFigure prototype) {
return new ChopEllipseConnector(this);
}
@Override
public Connector findCompatibleConnector(Connector c, boolean isStartConnector) {
return new ChopEllipseConnector(this);
}
// COMPOSITE FIGURES
// CLONING
// EVENT HANDLING
public Rectangle2D.Double getBounds() {
return (Rectangle2D.Double) ellipse.getBounds2D();
}
public Rectangle2D.Double getDrawingArea() {
Rectangle2D.Double r = (Rectangle2D.Double) ellipse.getBounds2D();
double grow = AttributeKeys.getPerpendicularHitGrowth(this);
Geom.grow(r, grow, grow);
return r;
}
protected void drawFill(Graphics2D g) {
Ellipse2D.Double r = (Ellipse2D.Double) ellipse.clone();
double grow = AttributeKeys.getPerpendicularFillGrowth(this);
r.x -= grow;
r.y -= grow;
r.width += grow * 2;
r.height += grow * 2;
if (r.width > 0 && r.height > 0) {
g.fill(r);
}
}
protected void drawStroke(Graphics2D g) {
Ellipse2D.Double r = (Ellipse2D.Double) ellipse.clone();
double grow = AttributeKeys.getPerpendicularDrawGrowth(this);
r.x -= grow;
r.y -= grow;
r.width += grow * 2;
r.height += grow * 2;
if (r.width > 0 && r.height > 0) {
g.draw(r);
}
}
/**
* Checks if a Point2D.Double is inside the figure.
*/
public boolean contains(Point2D.Double p) {
Ellipse2D.Double r = (Ellipse2D.Double) ellipse.clone();
double grow = AttributeKeys.getPerpendicularHitGrowth(this);
r.x -= grow;
r.y -= grow;
r.width += grow * 2;
r.height += grow * 2;
return r.contains(p);
}
@Override
public void setBounds(Point2D.Double anchor, Point2D.Double lead) {
ellipse.x = Math.min(anchor.x, lead.x);
ellipse.y = Math.min(anchor.y , lead.y);
ellipse.width = Math.max(0.1, Math.abs(lead.x - anchor.x));
ellipse.height = Math.max(0.1, Math.abs(lead.y - anchor.y));
}
/**
* Transforms the figure.
*
* @param tx the transformation.
*/
public void transform(AffineTransform tx) {
Point2D.Double anchor = getStartPoint();
Point2D.Double lead = getEndPoint();
setBounds(
(Point2D.Double) tx.transform(anchor, anchor),
(Point2D.Double) tx.transform(lead, lead)
);
}
@Override
public EllipseFigure clone() {
EllipseFigure that = (EllipseFigure) super.clone();
that.ellipse = (Ellipse2D.Double) this.ellipse.clone();
return that;
}
public void restoreTransformTo(Object geometry) {
Ellipse2D.Double r = (Ellipse2D.Double) geometry;
ellipse.x = r.x;
ellipse.y = r.y;
ellipse.width = r.width;
ellipse.height = r.height;
}
public Object getTransformRestoreData() {
return ellipse.clone();
}
}