Revision 44924 trunk/org.gvsig.desktop/org.gvsig.desktop.library/org.gvsig.expressionevaluator/org.gvsig.expressionevaluator.lib/org.gvsig.expressionevaluator.lib.impl/src/main/java/org/gvsig/expressionevaluator/impl/function/image/ImageReadFunction.java

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ImageReadFunction.java
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package org.gvsig.expressionevaluator.impl.function.image;
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import java.awt.Graphics2D;


  		




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import java.awt.Image;


  		




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import java.awt.RenderingHints;


  		




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import java.awt.geom.AffineTransform;


  		




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import java.awt.image.BufferedImage;


  		




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import java.io.ByteArrayInputStream;


  		




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import java.io.File;


  		




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import java.io.IOException;


  		




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import java.net.URL;


  		




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import javax.imageio.ImageIO;


  		




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import org.apache.commons.codec.DecoderException;


  		




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import org.apache.commons.codec.binary.Base64;


  		




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import org.apache.commons.codec.binary.Hex;


  		




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import org.apache.commons.lang3.Range;


  		




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import org.gvsig.expressionevaluator.Interpreter;


  		




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import org.gvsig.expressionevaluator.spi.AbstractFunction;


  		




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    public ImageReadFunction() {


  		




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        super(


  		




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


  		




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                "Read an image from a data source and return it as a 'Java BufferedImage' object.\n"


  		




  
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                "Read an image from a data source and return it as a SimpleImage object.\n"


  		




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                + "The data source of the image can be:\n<ul>"


  		




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                + "<li>A byte array</li>"


  		




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                + "<li>A URL</li>"


  		




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                new String[]{


  		




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                    "Value from which to load the image"


  		




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                },


  		




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                "BufferedImage",


  		




  
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                "SimpleImage",


  		




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                false


  		




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        );


  		




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    }


  		




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        if( image.isEmpty() ) {


  		




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            return null;


  		




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        }


  		




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        return image.getBufferedImage();


  		




  
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        return image;


  		




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    }


  		




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    public static SimpleImage createSimpleImage(Object source) {


  		




  
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        if( source instanceof SimpleImage ) {


  		




  
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          return (SimpleImage) source;


  		




  
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        }


  		




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        SimpleImage image = new SimpleImage(source);


  		




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        return image;


  		




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    }


  		












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