Application: gvSIG desktop

package org.gvsig.expressionevaluator.impl.function.image;

import org.apache.commons.lang3.Range;

import org.gvsig.expressionevaluator.Interpreter;

import org.gvsig.expressionevaluator.spi.AbstractFunction;

public class ImageVerticalflipFunction extends AbstractFunction {

    public ImageVerticalflipFunction() {

        super(

                "Image", "IMAGEVERTICALFLIP", Range.is(1),

                "",

                "IMAGEVERTICALFLIP({{image}})",

                new String[]{

                    "image"

                },

                "SimpleImage",

                false

        );

    }

    @Override

    public boolean allowConstantFolding() {

        return true;

    }

    @Override

    public Object call(Interpreter interpreter, Object[] args) {

        Object arg0 = this.getObject(args, 0);

        SimpleImage image = ImageReadFunction.createSimpleImage(arg0);

        if( image.isEmpty() ) {

            return null;

        }

        image = image.verticalflip();

        return image;

    }

}