/**
* ===========================================
* LibLayout : a free Java layouting library
* ===========================================
*
* Project Info: http://reporting.pentaho.org/liblayout/
*
* (C) Copyright 2006-2007, by Pentaho Corporation and Contributors.
*
* 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 library 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.
*
* 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.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
* ------------
* $Id: StrictGeomUtility.java,v 1.6 2007/04/02 11:41:22 taqua Exp $
* ------------
* (C) Copyright 2006-2007, by Pentaho Corporation.
*/
package org.jfree.layouting.util.geom;
import java.awt.geom.Dimension2D;
import java.awt.geom.Rectangle2D;
import org.jfree.ui.FloatDimension;
/**
* This class is the heart of the alternative geometrics toolkit. It performs
* the neccessary conversions from and to the AWT classes to the Strict-classes.
*
* @author Thomas Morgner
*/
public class StrictGeomUtility
{
/**
* This is the correction factor used to convert points into 'Micro-Points'.
*/
private static final double CORRECTION_FACTOR = 1000.0d;
/**
* Hidden, non usable constructor.
*/
private StrictGeomUtility ()
{
}
/**
* Creates a StrictDimension from the given AWT sizes.
*
* @param w the width in points (1/72th inch).
* @param h the height in points (1/72th inch).
* @return the created dimension object.
*/
public static StrictDimension createDimension (final double w, final double h)
{
return new StrictDimension((long) (w * CORRECTION_FACTOR),
(long) (h * CORRECTION_FACTOR));
}
/**
* Creates a StrictPoint from the given AWT coordinates.
*
* @param x the x coordinate in points (1/72th inch).
* @param y the y coordinate in points (1/72th inch).
* @return the created point object.
*/
public static StrictPoint createPoint (final double x, final double y)
{
return new StrictPoint((long) (x * CORRECTION_FACTOR),
(long) (y * CORRECTION_FACTOR));
}
/**
* Creates a StrictBounds object from the given AWT sizes.
*
* @param x the x coordinate in points (1/72th inch).
* @param y the y coordinate in points (1/72th inch).
* @param width the width in points (1/72th inch).
* @param height the height in points (1/72th inch).
* @return the created dimension object.
*/
public static StrictBounds createBounds (final double x, final double y,
final double width, final double height)
{
return new StrictBounds((long) (x * CORRECTION_FACTOR),
(long) (y * CORRECTION_FACTOR),
(long) (width * CORRECTION_FACTOR),
(long) (height * CORRECTION_FACTOR));
}
/**
* Creates an AWT-Dimension2D object from the given strict sizes.
*
* @param width the width in micro points.
* @param height the height in micro points.
* @return the created dimension object.
*/
public static Dimension2D createAWTDimension
(final long width, final long height)
{
return new FloatDimension
((float) (width / CORRECTION_FACTOR), (float) (height / CORRECTION_FACTOR));
}
/**
* Creates an AWT rectangle object from the given strict sizes.
*
* @param x the x coordinate in micro points.
* @param y the y coordinate in micro points.
* @param width the width in micro points.
* @param height the height in micro points.
* @return the created dimension object.
*/
public static Rectangle2D createAWTRectangle
(final long x, final long y, final long width, final long height)
{
return new Rectangle2D.Double
(x / CORRECTION_FACTOR, y / CORRECTION_FACTOR,
width / CORRECTION_FACTOR, height / CORRECTION_FACTOR);
}
/**
* Converts the given AWT value into a strict value.
*
* @param value the AWT point value.
* @return the internal micro point value.
*/
public static long toInternalValue (final double value)
{
return (long) (value * CORRECTION_FACTOR);
}
/**
* Converts the given micro point value into an AWT value.
*
* @param value the micro point point value.
* @return the AWT point value.
*/
public static double toExternalValue (final long value)
{
return (value / CORRECTION_FACTOR);
}
public static long multiply (final long x, final long y)
{
return (long) ((x * y) / CORRECTION_FACTOR);
}
}