--- a/src/de/mpg/mpiwg/itgroup/digilib/manipulator/extensions/ManipulatorExtension.java	Mon Jan 03 09:13:17 2011 +0100
+++ b/src/de/mpg/mpiwg/itgroup/digilib/manipulator/extensions/ManipulatorExtension.java	Mon Jan 03 16:53:48 2011 +0100
@@ -5,10 +5,15 @@
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
 
-import de.mpg.mpiwg.itgroup.digilib.digiImage.DigiImage;
 import de.mpg.mpiwg.itgroup.digilib.digiImage.DigiImageController;
 import de.mpg.mpiwg.itgroup.digilib.manipulator.IDigilibImageManipulator;
 
+/**
+ * Abstract class where all Digilib Manipulator extensions shoud be derived from
+ * 
+ * @author dwinter
+ *
+ */
 public abstract class ManipulatorExtension implements IDigilibImageManipulator {
 	
 	private String iconOff;
@@ -18,33 +23,58 @@
 	private String keyword;
 	
 
+	/* (non-Javadoc)
+	 * @see de.mpg.mpiwg.itgroup.digilib.manipulator.IDigilibImageManipulator#getKeyword()
+	 */
 	public String getKeyword() {
 		return keyword;
 	}
 
 	
+	/* (non-Javadoc)
+	 * @see de.mpg.mpiwg.itgroup.digilib.manipulator.IDigilibImageManipulator#run(de.mpg.mpiwg.itgroup.digilib.digiImage.DigiImageController)
+	 */
 	public void run(DigiImageController dc) {};
 	
+	
+	/**
+	 * Set path to icon. path is path with in classpath
+	 * @param ip
+	 */
 	public void setImagePath(String ip) {
 		imagePath=ip;
 		
 	}
 	
+	/**
+	 * @return path to the current icon within the class path
+	 */
 	public String getImagePath() {
 		return imagePath;
 		
 	}
 
+	/**
+	 * @param keyword keyword which identifies the extension, used by 
+	 *  @see {@link de.mpg.mpiwg.itgroup.digilib.manipulator.DigilibImageManipulatorProvider}.
+	 *  
+	 */
 	public void setKeyword(String keyword) {
 		this.keyword = keyword;
 	}
 
+	/* (non-Javadoc)
+	 * @see de.mpg.mpiwg.itgroup.digilib.manipulator.IDigilibImageManipulator#createImage(org.eclipse.swt.widgets.Composite)
+	 */
 	public Image createImage(Composite parent) {
 		InputStream is = getClass().getResourceAsStream(getImagePath());
 		Image img = new Image(parent.getDisplay(),is);
 		return img;
 	}
 
+	/**
+	 *  Toggle selection state of the navigation icon
+	 */
 	public void toggleIcon(){
 		if(imagePath.equals(iconOff)){
 			setImagePath(iconOn);
@@ -53,10 +83,18 @@
 		}
 	}
 	
+	/**
+	 * Set icon to off state.
+	 */
 	public void setOffIcon(){
 		setImagePath(iconOff);
 	}
 	
+	/**
+	 * Setze die Pfade zu den Icons innerhalb des class path.
+	 * @param iconOff
+	 * @param iconOn
+	 */
 	public void setIconPaths(String iconOff, String iconOn) {
 		this.iconOff=iconOff;
 		this.iconOn=iconOn;