jcckit.plot.PositionHint Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of plantuml Show documentation
Show all versions of plantuml Show documentation
PlantUML is a component that allows to quickly write :
* sequence diagram,
* use case diagram,
* class diagram,
* activity diagram,
* component diagram,
* state diagram
* object diagram
/*
* Copyright 2003-2004, Franz-Josef Elmer, All rights reserved
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details
* (http://www.gnu.org/copyleft/lesser.html).
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcckit.plot;
import jcckit.graphic.GraphPoint;
import jcckit.util.ConfigParameters;
/**
* An immutable {@link Hint} capsulating two {@link GraphPoint GraphPoints}.
*
* @author Franz-Josef Elmer
*/
public class PositionHint implements Hint {
/** Configuration parameter key. */
public static final String POSITION_KEY = "position",
ORIGIN_KEY = "origin";
private final GraphPoint _position;
private final GraphPoint _origin;
/**
* Creates an instance from the specified configuration parameters.
*
* Key & Default Value Type Mandatory
* Description
* position = null
* double[] no
* Definition of position.
* origin = position or (0,0) if position
* undefined
* double[] no
* Definition of origin.
*
*/
public PositionHint(ConfigParameters config) {
double[] point = config.getDoubleArray(POSITION_KEY, null);
_position = point == null ? null : new GraphPoint(point);
_origin = new GraphPoint(config.getDoubleArray(ORIGIN_KEY, point));
}
/**
* Creates an instance based on two points.
* @param origin The origin.
* @param position The position.
*/
public PositionHint(GraphPoint origin, GraphPoint position) {
_origin = origin;
_position = position;
}
/** Returns the position. */
public GraphPoint getPosition() {
return _position;
}
/** Returns the origin. */
public GraphPoint getOrigin() {
return _origin;
}
}