/*
* Copyright 2015 JBoss, by Red Hat, Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.uberfire.ext.wires.core.scratchpad.client.shapes.dynamic;
import com.ait.lienzo.client.core.shape.Circle;
import com.ait.lienzo.client.core.types.Point2D;
import org.uberfire.ext.wires.core.api.controlpoints.ControlPoint;
import org.uberfire.ext.wires.core.api.controlpoints.ControlPointMoveHandler;
import org.uberfire.ext.wires.core.api.magnets.Magnet;
import org.uberfire.ext.wires.core.client.controlpoints.DefaultControlPoint;
import org.uberfire.ext.wires.core.client.magnets.DefaultMagnet;
import org.uberfire.ext.wires.core.scratchpad.client.shapes.WiresScratchPadDefaultShape;
public class WiresCircle extends WiresScratchPadDefaultShape {
private static final int BOUNDARY_SIZE = 10;
private final Magnet magnet1;
private final Magnet magnet2;
private final Magnet magnet3;
private final Magnet magnet4;
private final ControlPoint controlPoint1;
private Circle circle;
private Circle bounding;
public WiresCircle(final Circle shape) {
final double radius = shape.getRadius();
circle = shape;
bounding = new Circle(radius + (BOUNDARY_SIZE / 2));
bounding.setStrokeWidth(BOUNDARY_SIZE);
bounding.setAlpha(0.1);
add(circle);
magnets.clear();
magnet1 = new DefaultMagnet(getX() - radius,
getY());
magnet2 = new DefaultMagnet(getX() + radius,
getY());
magnet3 = new DefaultMagnet(getX(),
getY() - radius);
magnet4 = new DefaultMagnet(getX(),
getY() + radius);
addMagnet(magnet1);
addMagnet(magnet2);
addMagnet(magnet3);
addMagnet(magnet4);
controlPoints.clear();
controlPoint1 = new DefaultControlPoint(getX() + radius,
getY(),
new ControlPointMoveHandler() {
@Override
public void onMove(final double x,
final double y) {
final double dx = getX() - x;
final double dy = getY() - y;
final double r = Math.sqrt(Math.pow(dx,
2) + Math.pow(dy,
2));
magnet1.setX(getX() - r);
magnet2.setX(getX() + r);
magnet3.setY(getY() - r);
magnet4.setY(getY() + r);
circle.setRadius(r);
bounding.setRadius(r + (BOUNDARY_SIZE / 2));
}
}
);
addControlPoint(controlPoint1);
}
@Override
public void setSelected(final boolean isSelected) {
if (isSelected) {
add(bounding);
} else {
remove(bounding);
}
}
@Override
public boolean contains(final double cx,
final double cy) {
final double _x = cx - getX();
final double _y = cy - getY();
return Math.sqrt(Math.pow(_x,
2) + Math.pow(_y,
2)) < circle.getRadius() + BOUNDARY_SIZE;
}
public double getRadius() {
return circle.getRadius();
}
public void setRadius(final double radius) {
circle.setRadius(radius);
bounding.setRadius(radius + (BOUNDARY_SIZE / 2));
final double theta = Math.atan(controlPoint1.getY() / controlPoint1.getX());
controlPoint1.setLocation(new Point2D(getX() + (radius * Math.cos(theta)),
getY() + (radius * Math.sin(theta))));
magnet1.setLocation(new Point2D(getX() - radius,
getY()));
magnet2.setLocation(new Point2D(getX() + radius,
getY()));
magnet3.setLocation(new Point2D(getX(),
getY() - radius));
magnet4.setLocation(new Point2D(getX(),
getY() + radius));
}
}