/*******************************************************************************
* 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
******************************************************************************/
/*
* @(#)ODGEllipse.java 1.0 2007-07-29
*
* Copyright (c) 2007 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.samples.odg.figures;
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.io.*;
import java.util.*;
import javax.swing.*;
import org.jhotdraw.draw.*;
import static org.jhotdraw.samples.odg.ODGAttributeKeys.*;
import org.jhotdraw.geom.*;
import org.jhotdraw.samples.odg.*;
import org.jhotdraw.samples.odg.ODGConstants;
import org.jhotdraw.xml.*;
import org.jhotdraw.util.*;
/**
* ODGEllipse represents a ODG ellipse and a ODG circle element.
*
* @author Werner Randelshofer
* @version 1.0 2007-07-29 Created.
*/
public class ODGEllipseFigure extends ODGAttributedFigure implements ODGFigure {
private Ellipse2D.Double ellipse;
/**
* This is used to perform faster drawing and hit testing.
*/
private transient Shape cachedTransformedShape;
/** Creates a new instance. */
public ODGEllipseFigure() {
this(0, 0, 0, 0);
}
public ODGEllipseFigure(double x, double y, double width, double height) {
ellipse = new Ellipse2D.Double(x, y, width, height);
ODGAttributeKeys.setDefaults(this);
}
// DRAWING
protected void drawFill(Graphics2D g) {
g.fill(ellipse);
//g.fill(getTransformedShape());
}
protected void drawStroke(Graphics2D g) {
g.draw(ellipse);
/*
if (TRANSFORM.get(this) == null) {
g.draw(ellipse);
} else {
AffineTransform savedTransform = g.getTransform();
g.transform(TRANSFORM.get(this));
g.draw(ellipse);
g.setTransform(savedTransform);
}*/
}
// SHAPE AND BOUNDS
public double getX() {
return ellipse.x;
}
public double getY() {
return ellipse.y;
}
public double getWidth() {
return ellipse.getWidth();
}
public double getHeight() {
return ellipse.getHeight();
}
public Rectangle2D.Double getBounds() {
return (Rectangle2D.Double) ellipse.getBounds2D();
}
@Override public Rectangle2D.Double getDrawingArea() {
Rectangle2D rx = getTransformedShape().getBounds2D();
Rectangle2D.Double r = (rx instanceof Rectangle2D.Double) ? (Rectangle2D.Double) rx : new Rectangle2D.Double(rx.getX(), rx.getY(), rx.getWidth(), rx.getHeight());
if (TRANSFORM.get(this) == null) {
double g = ODGAttributeKeys.getPerpendicularHitGrowth(this) * 2;
Geom.grow(r, g, g);
} else {
double strokeTotalWidth = AttributeKeys.getStrokeTotalWidth(this);
double width = strokeTotalWidth / 2d;
width *= Math.max(TRANSFORM.get(this).getScaleX(), TRANSFORM.get(this).getScaleY());
Geom.grow(r, width, width);
}
return r;
}
/**
* Checks if a Point2D.Double is inside the figure.
*/
public boolean contains(Point2D.Double p) {
// XXX - This does not take the stroke width into account!
return getTransformedShape().contains(p);
}
private Shape getTransformedShape() {
if (cachedTransformedShape == null) {
if (TRANSFORM.get(this) == null) {
cachedTransformedShape = ellipse;
} else {
cachedTransformedShape = TRANSFORM.get(this).createTransformedShape(ellipse);
}
}
return cachedTransformedShape;
}
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) {
if (TRANSFORM.get(this) != null ||
(tx.getType() & (AffineTransform.TYPE_TRANSLATION)) != tx.getType()) {
if (TRANSFORM.get(this) == null) {
TRANSFORM.basicSetClone(this, tx);
} else {
AffineTransform t = TRANSFORM.getClone(this);
t.preConcatenate(tx);
TRANSFORM.basicSet(this, t);
}
} else {
Point2D.Double anchor = getStartPoint();
Point2D.Double lead = getEndPoint();
setBounds(
(Point2D.Double) tx.transform(anchor, anchor),
(Point2D.Double) tx.transform(lead, lead)
);
if (FILL_GRADIENT.get(this) != null &&
! FILL_GRADIENT.get(this).isRelativeToFigureBounds()) {
Gradient g = FILL_GRADIENT.getClone(this);
g.transform(tx);
FILL_GRADIENT.basicSet(this, g);
}
if (STROKE_GRADIENT.get(this) != null &&
! STROKE_GRADIENT.get(this).isRelativeToFigureBounds()) {
Gradient g = STROKE_GRADIENT.getClone(this);
g.transform(tx);
STROKE_GRADIENT.basicSet(this, g);
}
}
invalidate();
}
public void restoreTransformTo(Object geometry) {
Object[] restoreData = (Object[]) geometry;
ellipse = (Ellipse2D.Double) ((Ellipse2D.Double) restoreData[0]).clone();
TRANSFORM.basicSetClone(this, (AffineTransform) restoreData[1]);
FILL_GRADIENT.basicSetClone(this, (Gradient) restoreData[2]);
STROKE_GRADIENT.basicSetClone(this, (Gradient) restoreData[3]);
invalidate();
}
public Object getTransformRestoreData() {
return new Object[] {
ellipse.clone(),
TRANSFORM.getClone(this),
FILL_GRADIENT.getClone(this),
STROKE_GRADIENT.getClone(this),
};
}
// ATTRIBUTES
// EDITING
@Override public Collection<Handle> createHandles(int detailLevel) {
LinkedList<Handle> handles = new LinkedList<Handle>();
switch (detailLevel % 2) {
case 0 :
ResizeHandleKit.addResizeHandles(this, handles);
break;
case 1 :
TransformHandleKit.addTransformHandles(this, handles);
break;
default:
break;
}
return handles;
}
// CONNECTING
public boolean canConnect() {
return false; // ODG does not support connecting
}
public Connector findConnector(Point2D.Double p, ConnectionFigure prototype) {
return null; // ODG does not support connectors
}
public Connector findCompatibleConnector(Connector c, boolean isStartConnector) {
return null; // ODG does not support connectors
}
// COMPOSITE FIGURES
// CLONING
public ODGEllipseFigure clone() {
ODGEllipseFigure that = (ODGEllipseFigure) super.clone();
that.ellipse = (Ellipse2D.Double) this.ellipse.clone();
that.cachedTransformedShape = null;
return that;
}
// EVENT HANDLING
public boolean isEmpty() {
Rectangle2D.Double b = getBounds();
return b.width <= 0 || b.height <= 0;
}
@Override public void invalidate() {
super.invalidate();
cachedTransformedShape = null;
}
}