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/*
* Copyright 2002-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package org.jdesktop.swingx.designer;
import java.awt.BasicStroke;
import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* BezierControlPoint
*
* @author Created by Jasper Potts (May 29, 2007)
*/
public class BezierControlPoint extends ControlPoint {
private HandleControlPoint cp1 = new HandleControlPoint();
private HandleControlPoint cp2 = new HandleControlPoint();
private transient boolean makingChange = false;
private transient PropertyChangeListener cpListener = new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
// if (!makingChange) {
// makingChange = true;
// if (evt.getSource() == cp1) {
// double angle = Math.tan((cp1.getY() - getY())/(cp1.getX() - getX()));
// double cp2len = Math.sqrt(
// Math.pow(cp2.getX() - getX(),2) +
// Math.pow(cp2.getY() - getY(),2)
// );
// double offsetX = cp2len * Math.sin(angle);
// double offsetY = cp2len * Math.cos(angle);
// cp2.setPosition(getX() - offsetX, getY() - offsetY);
// } else {
// double angle = Math.tan((cp2.getY() - getY())/(cp2.getX() - getX()));
// double cp1len = Math.sqrt(
// Math.pow(cp1.getX() - getX(),2) +
// Math.pow(cp1.getY() - getY(),2)
// );
// double offsetX = cp1len * Math.sin(angle);
// double offsetY = cp1len * Math.cos(angle);
// cp1.setPosition(getX() - offsetX, getY() - offsetY);
// }
//// if (evt.getSource() == cp1) {
//// double offsetX = cp1.getX() - getX();
//// double offsetY = cp1.getY() - getY();
//// cp2.setPosition(getX() - offsetX, getY() - offsetY);
//// } else {
//// double offsetX = cp2.getX() - getX();
//// double offsetY = cp2.getY() - getY();
//// cp1.setPosition(getX() - offsetX, getY() - offsetY);
//// }
// makingChange = false;
// firePropertyChange("cp1", null, cp1);
// firePropertyChange("cp2", null, cp1);
// }
firePropertyChange("shape",null,getShape());
}
};
public BezierControlPoint() {
cp1.addPropertyChangeListener(cpListener);
cp2.addPropertyChangeListener(cpListener);
}
public BezierControlPoint(double x, double y) {
super(x, y);
cp1.addPropertyChangeListener(cpListener);
cp2.addPropertyChangeListener(cpListener);
cp1.setPosition(x, y);
cp2.setPosition(x, y);
}
public boolean isSharpCorner() {
return
(cp1.getX() == x.getValue()) &&
(cp1.getY() == y.getValue()) &&
(cp2.getX() == x.getValue()) &&
(cp2.getY() == y.getValue());
}
public void flip(int width, int height){
makingChange = true;
if (width > 0){
x.setValue(width - x.getValue());
cp1.x.setValue(width - cp1.x.getValue());
cp2.x.setValue(width - cp2.x.getValue());
}
if (height > 0){
y.setValue(height - y.getValue());
cp1.y.setValue(height - cp1.y.getValue());
cp2.y.setValue(height - cp2.y.getValue());
}
makingChange = false;
}
public void convertToSharpCorner() {
cp1.setPosition(x.getValue(), y.getValue());
cp2.setPosition(x.getValue(), y.getValue());
}
public List<ControlPoint> getControlPoints() {
if (isSharpCorner()) {
return Collections.emptyList();
} else {
List<ControlPoint> points = new ArrayList<ControlPoint>();
points.add(cp1);
points.add(cp2);
return points;
}
}
public HandleControlPoint getCp1() {
return cp1;
}
public HandleControlPoint getCp2() {
return cp2;
}
public void paintControls(Graphics2D g2, double pixelSize, boolean paintControlLines) {
g2.setStroke(new BasicStroke((float) pixelSize));
// paint control line
g2.setColor(GraphicsHelper.BEZIER_CONTROL_LINE);
g2.draw(new Line2D.Double(cp1.getX(), cp1.getY(), getX(), getY()));
g2.draw(new Line2D.Double(getX(), getY(), cp2.getX(), cp2.getY()));
// paint this control point
Shape s;
if (isSharpCorner()) {
double size = pixelSize * 4d;
GeneralPath path = new GeneralPath();
path.moveTo(getX() - size, getY());
path.lineTo(getX(), getY() + size);
path.lineTo(getX() + size, getY());
path.lineTo(getX(), getY() - size);
path.closePath();
s = path;
} else {
double size = pixelSize * 3d;
s = new Ellipse2D.Double(getX() - size, getY() - size,
size * 2, size * 2);
}
g2.setColor(GraphicsHelper.BEZIER_CONTROL_POINT_FILL);
g2.fill(s);
g2.setColor(GraphicsHelper.BEZIER_CONTROL_POINT_LINE);
g2.draw(s);
// paint child control points
if (!isSharpCorner()) {
cp1.paintControls(g2, pixelSize, true);
cp2.paintControls(g2, pixelSize, true);
}
}
public void move(double moveX, double moveY, boolean snapPixels) {
makingChange = true;
super.move(moveX, moveY, snapPixels);
cp1.move(moveX, moveY, snapPixels);
cp2.move(moveX, moveY, snapPixels);
makingChange = false;
}
public double getCp1X() {
return cp1.getX();
}
public void setCp1X(double v) {
cp1.setX(v);
}
public double getCp1Y() {
return cp1.getY();
}
public void setCp1Y(double v) {
cp1.setY(v);
}
public double getCp2X() {
return cp2.getX();
}
public void setCp2X(double v) {
cp2.setX(v);
}
public double getCp2Y() {
return cp2.getY();
}
public void setCp2Y(double v) {
cp2.setY(v);
}
// =================================================================================================================
// Bezier handle control point
public class HandleControlPoint extends ControlPoint {
public void paintControls(Graphics2D g2, double pixelSize, boolean paintControlLines) {
if (!isSharp()){
double size = pixelSize * 3d;
Shape s = new Ellipse2D.Double(getX() - size, getY() - size,
size * 2, size * 2);
g2.setColor(GraphicsHelper.BEZIER_CONTROL_POINT_FILL);
g2.fill(s);
g2.setColor(GraphicsHelper.BEZIER_CONTROL_POINT_LINE);
g2.draw(s);
g2.draw(new Rectangle2D.Double(getX() - (pixelSize / 2), getY() - (pixelSize / 2), pixelSize, pixelSize));
}
}
public boolean isHit(Point2D p, double pixelSize) {
return !isSharp() && super.isHit(p, pixelSize);
}
/**
* Is the line controled by this handle in or out of the parent BezierControlPoint sharp.
*
* @return <code>true</code> If this is the exact same point as the parent BezierControlPoint.
*/
public boolean isSharp(){
return x.getValue() == BezierControlPoint.this.x.getValue() &&
y.getValue() == BezierControlPoint.this.y.getValue();
}
public void convertToSharp(){
setPosition(BezierControlPoint.this.x.getValue(),BezierControlPoint.this.y.getValue());
}
public BezierControlPoint getParentControlPoint(){
return BezierControlPoint.this;
}
}
}