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PlantUML is a component that allows to quickly write :
* sequence diagram,
* use case diagram,
* class diagram,
* activity diagram,
* component diagram,
* state diagram
* object diagram
/* ========================================================================
* PlantUML : a free UML diagram generator
* ========================================================================
*
* (C) Copyright 2009-2013, Arnaud Roques
*
* Project Info: http://plantuml.sourceforge.net
*
* This file is part of PlantUML.
*
* PlantUML 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 3 of the License, or
* (at your option) any later version.
*
* PlantUML 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 library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* Original Author: Arnaud Roques
*
* Revision $Revision: 9786 $
*
*/
package net.sourceforge.plantuml.geom.kinetic;
import java.awt.geom.Point2D;
import net.sourceforge.plantuml.geom.LineSegmentDouble;
public class Frame {
private double x;
private double y;
private final int width;
private final int height;
public Frame(double x, double y, int width, int height) {
this.x = x;
this.y = y;
this.width = width;
this.height = height;
}
LineSegmentDouble getSide1() {
return new LineSegmentDouble(x, y, x, y + height);
}
LineSegmentDouble getSide2() {
return new LineSegmentDouble(x, y, x + width, y);
}
LineSegmentDouble getSide3() {
return new LineSegmentDouble(x + width, y, x + width, y + height);
}
LineSegmentDouble getSide4() {
return new LineSegmentDouble(x, y + height, x + width, y + height);
}
public Point2D getFrontierPointViewBy(Point2D point) {
final LineSegmentDouble seg = new LineSegmentDouble(point, getCenter());
Point2D p = seg.getSegIntersection(getSide1());
if (p != null) {
return p;
}
p = seg.getSegIntersection(getSide2());
if (p != null) {
return p;
}
p = seg.getSegIntersection(getSide3());
if (p != null) {
return p;
}
p = seg.getSegIntersection(getSide4());
if (p != null) {
return p;
}
return null;
}
private Point2D getCenter() {
return new Point2D.Double(x + width / 2.0, y + height / 2.0);
}
public Point2D getMainCorner() {
return new Point2D.Double(x, y);
}
public final double getX() {
return x;
}
public final double getY() {
return y;
}
public final int getWidth() {
return width;
}
public final int getHeight() {
return height;
}
}