/*
* 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 - 2013 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 ) );
}
}