/*******************************************************************************
* 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
******************************************************************************/
/*
* @(#)ChopRoundRectangleConnector.java 2.1 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.util.*;
import java.awt.*;
import java.awt.geom.*;
import static org.jhotdraw.draw.AttributeKeys.*;
import org.jhotdraw.geom.*;
/**
* A ChopRoundRectangleConnector locates a connection Point2D.Double by
* chopping the connection at the horizontal and vertica lines defined by the
* display box of a RoundRectangleFigure.
*
* @author Werner Randelshofer
* @version 2.2 2006-12-23 Renamed from ChopRoundRectConnector to
* ChopRoundRectangleConnector.
* <br>2.0 2006-01-14 Changed to support double precison coordinates.
* <br>1.0 2004-03-02 Derived from class ShortestDistanceConnector of
* JHotDraw 6.0b1.
*/
public class ChopRoundRectangleConnector extends ChopRectangleConnector {
/**
* Only used for DOMStorable input.
*/
public ChopRoundRectangleConnector() {
}
public ChopRoundRectangleConnector(Figure owner) {
super(owner);
}
protected Point2D.Double chop(Figure target, Point2D.Double from) {
target = getConnectorTarget(target);
RoundRectangleFigure rrf = (RoundRectangleFigure) target;
Rectangle2D.Double outer = rrf.getBounds();
double grow;
switch (STROKE_PLACEMENT.get(target)) {
case CENTER :
default :
grow = AttributeKeys.getStrokeTotalWidth(target) / 2d;
break;
case OUTSIDE :
grow = AttributeKeys.getStrokeTotalWidth(target);
break;
case INSIDE :
grow = 0;
break;
}
Geom.grow(outer, grow, grow);
Rectangle2D.Double inner = (Rectangle2D.Double) outer.clone();
double gw = -(rrf.getArcWidth() + grow * 2) / 2;
double gh = -(rrf.getArcHeight() + grow *2) / 2;
inner.x -= gw;
inner.y -= gh;
inner.width += gw * 2;
inner.height += gh * 2;
double angle = Geom.pointToAngle(outer, from);
Point2D.Double p = Geom.angleToPoint(outer, Geom.pointToAngle(outer, from));
if (p.x == outer.x
|| p.x == outer.x + outer.width) {
p.y = Math.min(Math.max(p.y, inner.y), inner.y + inner.height);
} else {
p.x = Math.min(Math.max(p.x, inner.x), inner.x + inner.width);
}
return p;
}
}