--- a/common/src/main/java/digilib/image/DocuImageImpl.java	Fri Mar 09 20:47:06 2012 +0100
+++ b/common/src/main/java/digilib/image/DocuImageImpl.java	Sat Mar 10 23:09:38 2012 +0100
@@ -16,7 +16,7 @@
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 
-*/
+ */
 
 package digilib.image;
 
@@ -28,88 +28,112 @@
 import java.util.LinkedList;
 import java.util.List;
 
-
 import org.apache.log4j.Logger;
 
 import digilib.io.FileOpException;
 import digilib.io.ImageInput;
 import digilib.util.ImageSize;
 
-/** Simple abstract implementation of the <code>DocuImage</code> interface.
- *
+/**
+ * Simple abstract implementation of the <code>DocuImage</code> interface.
+ * 
  * This implementation provides basic functionality for the utility methods like
- * <code>getKnownFileTypes</code>. Image methods like
- * <code>loadImage</code>, <code>writeImage</code>, <code>getWidth</code>,
- * <code>getHeight</code>, <code>crop</code> and <code>scale</code> must be
- * implemented by derived classes.
+ * <code>getKnownFileTypes</code>. Image methods like <code>loadImage</code>,
+ * <code>writeImage</code>, <code>getWidth</code>, <code>getHeight</code>,
+ * <code>crop</code> and <code>scale</code> must be implemented by derived
+ * classes.
  */
 public abstract class DocuImageImpl implements DocuImage {
 
-	/** logger */
-	protected static final Logger logger = Logger.getLogger(DocuImage.class);
-	
-	/** Interpolation quality. */
-	protected int quality = 0;
-	
-	/** epsilon for float comparisons. */
-	public static final double epsilon = 1e-5;
+    /** DocuImage version */
+    public static final String version = "DocuImageImpl 2.1";
+    
+    /** logger */
+    protected static final Logger logger = Logger.getLogger(DocuImage.class);
 
-	/** image size */
+    /** Interpolation quality. */
+    protected int quality = 0;
+
+    /** epsilon for float comparisons. */
+    public static final double epsilon = 1e-5;
+
+    /** image size */
     protected ImageSize imgSize = null;
 
     /** ImageInput that was read */
     protected ImageInput input;
 
-	/**
-	 * Returns the quality.
-	 * @return int
-	 */
-	public int getQuality() {
-		return quality;
-	}
+    /** 
+     * Returns the version.
+     * @return the version
+     */
+    public String getVersion() {
+        return version;
+    }
 
-	/**
-	 * Sets the quality.
-	 * @param quality The quality to set
-	 */
-	public void setQuality(int quality) {
-		this.quality = quality;
-	}
+    /**
+     * Returns the quality.
+     * 
+     * @return int
+     */
+    public int getQuality() {
+        return quality;
+    }
+
+    /**
+     * Sets the quality.
+     * 
+     * @param quality
+     *            The quality to set
+     */
+    public void setQuality(int quality) {
+        this.quality = quality;
+    }
 
-	/** Crop and scale the current image.
-	 *
-	 * The current image is cropped to a rectangle of width, height at position
-	 * x_off, y_off. The resulting image is scaled by the factor scale using the
-	 * interpolation quality qual (0=worst).
-	 * 
-	 * @param x_off X offset of the crop rectangle in pixel.
-	 * @param y_off Y offset of the crop rectangle in pixel.
-	 * @param width Width of the crop rectangle in pixel.
-	 * @param height Height of the crop rectangle in pixel.
-	 * @param scale Scaling factor.
-	 * @param qual Interpolation quality (0=worst).
-	 * @throws ImageOpException Exception thrown on any error.
-	 */
-	public void cropAndScale(
-		int x_off, int y_off, int width, int height, double scale, int qual) 
-		throws ImageOpException {
-		// default implementation: first crop, then scale
-		setQuality(qual);
-		crop(x_off, y_off, width, height);
-		scale(scale, scale);
-	}
-	
-	/* (non-Javadoc)
-	 * @see digilib.image.DocuImage#getMimetype()
-	 */
-	public String getMimetype() {
-	    if (input != null) {
-	        return input.getMimetype();
-	    }
-	    return null;
-	}
+    /**
+     * Crop and scale the current image.
+     * 
+     * The current image is cropped to a rectangle of width, height at position
+     * x_off, y_off. The resulting image is scaled by the factor scale using the
+     * interpolation quality qual (0=worst).
+     * 
+     * @param x_off
+     *            X offset of the crop rectangle in pixel.
+     * @param y_off
+     *            Y offset of the crop rectangle in pixel.
+     * @param width
+     *            Width of the crop rectangle in pixel.
+     * @param height
+     *            Height of the crop rectangle in pixel.
+     * @param scale
+     *            Scaling factor.
+     * @param qual
+     *            Interpolation quality (0=worst).
+     * @throws ImageOpException
+     *             Exception thrown on any error.
+     */
+    public void cropAndScale(int x_off, int y_off, int width, int height, double scale, int qual) throws ImageOpException {
+        // default implementation: first crop, then scale
+        setQuality(qual);
+        crop(x_off, y_off, width, height);
+        scale(scale, scale);
+    }
 
-    /* (non-Javadoc)
+    /*
+     * (non-Javadoc)
+     * 
+     * @see digilib.image.DocuImage#getMimetype()
+     */
+    public String getMimetype() {
+        if (input != null) {
+            return input.getMimetype();
+        }
+        return null;
+    }
+
+    /*
+     * (non-Javadoc)
+     * 
      * @see digilib.image.DocuImage#identify(digilib.io.ImageFile)
      */
     public ImageInput identify(ImageInput ii) throws IOException {
@@ -117,48 +141,45 @@
         return null;
     }
 
-	public void rotate(double angle) throws ImageOpException {
-		// just a do-nothing implementation
-	}
+    public void rotate(double angle) throws ImageOpException {
+        // just a do-nothing implementation
+    }
 
-	public void mirror(double angle) throws ImageOpException {
-		// just a do-nothing implementation
-	}
+    public void mirror(double angle) throws ImageOpException {
+        // just a do-nothing implementation
+    }
 
-	public void enhance(float mult, float add) throws ImageOpException {
-		// just a do-nothing implementation
-	}
+    public void enhance(float mult, float add) throws ImageOpException {
+        // just a do-nothing implementation
+    }
 
-	public boolean isSubimageSupported() {
-		// partial loading not supported per default
-		return false;
-	}
+    public boolean isSubimageSupported() {
+        // partial loading not supported per default
+        return false;
+    }
 
-	public void loadSubimage(ImageInput ii, Rectangle region, int subsample)
-		throws FileOpException {
-		// empty implementation
-	}
+    public void loadSubimage(ImageInput ii, Rectangle region, int subsample) throws FileOpException {
+        // empty implementation
+    }
 
-	public void enhanceRGB(float[] rgbm, float[] rgba)
-		throws ImageOpException {
-		// emtpy implementation
-	}
+    public void enhanceRGB(float[] rgbm, float[] rgba) throws ImageOpException {
+        // emtpy implementation
+    }
 
-	public void colorOp(ColorOp op) throws ImageOpException {
-		// emtpy implementation
-	}
-
-	public void dispose() {
-		// emtpy implementation
-	}
+    public void colorOp(ColorOp op) throws ImageOpException {
+        // emtpy implementation
+    }
 
-	public Iterator<String> getSupportedFormats() {
-		List<String> empty = new LinkedList<String>();
-		return empty.iterator();
-	}
+    public void dispose() {
+        // emtpy implementation
+    }
 
-    public void crop(int xoff, int yoff, int width, int height)
-            throws ImageOpException {
+    public Iterator<String> getSupportedFormats() {
+        List<String> empty = new LinkedList<String>();
+        return empty.iterator();
+    }
+
+    public void crop(int xoff, int yoff, int width, int height) throws ImageOpException {
         // emtpy implementation
     }
 
@@ -191,8 +212,6 @@
 
     public abstract void scale(double scaleX, double scaleY) throws ImageOpException;
 
-    public abstract void writeImage(String mt, OutputStream ostream)
-            throws ImageOpException, FileOpException;
+    public abstract void writeImage(String mt, OutputStream ostream) throws ImageOpException, FileOpException;
 
-	
 }