// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.core.util;

import org.litesoft.core.simpletypes.*;

public class LeftRightAndUpDownRectContainmentStrategy extends RectangleContainmentStrategy
{
    public static final RectangleContainmentStrategy INSTANCE = new LeftRightAndUpDownRectContainmentStrategy();

    private LeftRightAndUpDownRectContainmentStrategy()
    {
        super( "LeftRightAndUpDown" );
    }

    public PointXY moveToFitIn( Rect pRect, Rect pContainer )
    {
        Integer zNewXpos = adjust( pRect.getXpos(), pRect.getXsize(), //
                                   pContainer.getXpos(), pContainer.getXsize() );
        Integer zNewYpos = adjust( pRect.getYpos(), pRect.getYsize(), //
                                   pContainer.getYpos(), pContainer.getYsize() );
        if ( (zNewXpos == null) && (zNewYpos == null) )
        {
            return null;
        }
        return new PointXY( (zNewXpos != null) ? zNewXpos : pRect.getXpos(), (zNewYpos != null) ? zNewYpos : pRect.getYpos() );
    }
}