/*
* Freeplane - mind map editor
* Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
*
* This file is modified by Dimitry Polivaev in 2008.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.view.swing.map.edge;
import java.awt.Component;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Stroke;
import java.awt.geom.CubicCurve2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import org.freeplane.view.swing.map.NodeView;
import org.freeplane.view.swing.map.link.CollisionDetector;
/**
* This class represents a sharp Edge of a MindMap.
*/
public class SharpBezierEdgeView extends SharpEdgeView {
private static final float XCTRL = 12;
Point2D.Float one, two;
public SharpBezierEdgeView(NodeView source, NodeView target, Component paintedComponent) {
super(source, target, paintedComponent);
}
@Override
public Stroke getStroke() {
return EdgeView.DEF_STROKE;
}
@Override
protected void draw(final Graphics2D g) {
final GeneralPath graph = update();
g.setColor(getColor());
g.setPaint(getColor());
g.setStroke(getStroke());
g.fill(graph);
g.draw(graph);
}
private GeneralPath update() {
final Point startControlPoint = getControlPoint(getStartConnectorLocation());
final float zoom = getMap().getZoom();
final float zoomedXCTRL = zoom * XCTRL;
final float xctrl = startControlPoint.x * zoomedXCTRL;
final float yctrl = startControlPoint.y * zoomedXCTRL;
final Point endControlPoint = getControlPoint(getEndConnectorLocation());
final float w = (getWidth() / 2f + 1) * zoom;
final float w2 = w / 2;
final int deltaX = getDeltaX();
final int deltaY = getDeltaY();
final float childXctrl = deltaX > 0 ? endControlPoint.y * w2 : -endControlPoint.y * w2;
final float childYctrl = deltaY > 0 ? endControlPoint.x * w2 : -endControlPoint.x * w2;
one = new Point2D.Float(start.x + xctrl, start.y + yctrl);
two = new Point2D.Float(end.x - xctrl, end.y - yctrl);
final CubicCurve2D.Float line1 = new CubicCurve2D.Float();
final CubicCurve2D.Float line2 = new CubicCurve2D.Float();
line1.setCurve(start.x - deltaX, start.y - deltaY, one.x - deltaX, one.y - deltaY, two.x - childXctrl, two.y - childYctrl, end.x - childXctrl/4,
end.y - childYctrl / 4);
line2.setCurve(end.x + childXctrl/4, end.y + childYctrl / 4, two.x + childXctrl, two.y + childYctrl, one.x + deltaX, one.y + deltaY, start.x + deltaX,
start.y + deltaY);
final GeneralPath graph = new GeneralPath();
graph.append(line1, true);
graph.append(line2, true);
graph.closePath();
return graph;
}
@Override
public boolean detectCollision(final Point p) {
final CubicCurve2D.Float line1 = new CubicCurve2D.Float();
line1.setCurve(start.x, start.y, one.x, one.y, two.x, two.y, end.x, end.y);
return new CollisionDetector().detectCollision(p, line1);
}
}