jcckit.graphic.ClippingRectangle Maven / Gradle / Ivy
/*
* 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.graphic;
/**
* Immutable class of a rectangular clipping area.
*
* @author Franz-Josef Elmer
*/
public class ClippingRectangle implements ClippingShape {
private final double _minX, _minY, _maxX, _maxY;
/**
* Creates an instance for the specified coordinates of
* two opposite corner points.
*/
public ClippingRectangle(double x1, double y1, double x2, double y2) {
_minX = Math.min(x1, x2);
_minY = Math.min(y1, y2);
_maxX = Math.max(x1, x2);
_maxY = Math.max(y1, y2);
}
/**
* Returns true if the specified point is inside this
* rectangle.
*/
public boolean isInside(GraphPoint point) {
double x = point.getX();
double y = point.getY();
return _minX <= x && x <= _maxX && _minY <= y && y <= _maxY;
}
/** Returns the minimum x value. */
public double getMinX() {
return _minX;
}
/** Returns the maximum x value. */
public double getMaxX() {
return _maxX;
}
/** Returns the minimum y value. */
public double getMinY() {
return _minY;
}
/** Returns the maximum y value. */
public double getMaxY() {
return _maxY;
}
/** Returns this instance. */
public ClippingRectangle getBoundingBox() {
return this;
}
/** Returns a {@link Rectangle}. */
public BasicGraphicalElement getGraphicalElement() {
return new Rectangle(new GraphPoint(0.5 * (_minX + _maxX),
0.5 * (_minY + _maxY)),
_maxX - _minX, _maxY - _minY, null);
}
}