/*
* This program is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software
* Foundation.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
* or from the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* 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.
*
* Copyright (c) 2001 - 2009 Object Refinery Ltd, Pentaho Corporation and Contributors.. All rights reserved.
*/
package org.pentaho.reporting.engine.classic.core.modules.parser.ext.factory.base;
import java.awt.geom.Line2D;
/**
* An object-description for a <code>Line2D</code> object.
*
* @author Thomas Morgner
*/
public class Line2DObjectDescription extends AbstractObjectDescription
{
/**
* Creates a new object description.
*/
public Line2DObjectDescription()
{
super(Line2D.class);
setParameterDefinition("x1", Float.class);
setParameterDefinition("x2", Float.class);
setParameterDefinition("y1", Float.class);
setParameterDefinition("y2", Float.class);
}
/**
* Creates an object based on this description.
*
* @return The object.
*/
public Object createObject()
{
final Line2D line = new Line2D.Float();
final float x1 = getFloatParameter("x1");
final float x2 = getFloatParameter("x2");
final float y1 = getFloatParameter("y1");
final float y2 = getFloatParameter("y2");
line.setLine(x1, y1, x2, y2);
return line;
}
/**
* Returns a parameter value as a float.
*
* @param param the parameter name.
* @return The float value.
*/
private float getFloatParameter(final String param)
{
final Float p = (Float) getParameter(param);
if (p == null)
{
return 0;
}
return p.floatValue();
}
/**
* Sets the parameters of this description object to match the supplied object.
*
* @param o the object (should be an instance of <code>Line2D</code>).
* @throws ObjectFactoryException if the object is not an instance of <code>Line2D</code>.
*/
public void setParameterFromObject(final Object o) throws ObjectFactoryException
{
if (!(o instanceof Line2D))
{
throw new ObjectFactoryException("The given object is no java.awt.geom.Line2D.");
}
final Line2D line = (Line2D) o;
final float x1 = (float) line.getX1();
final float x2 = (float) line.getX2();
final float y1 = (float) line.getY1();
final float y2 = (float) line.getY2();
setParameter("x1", new Float(x1));
setParameter("x2", new Float(x2));
setParameter("y1", new Float(y1));
setParameter("y2", new Float(y2));
}
}