--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/common/src/main/java/digilib/io/ImageSet.java	Tue Apr 26 20:24:31 2011 +0200
@@ -0,0 +1,211 @@
+/* ImageSet -- digilib image file info class.  
+ * Digital Image Library servlet components  
+ * Copyright (C) 2003 Robert Casties (robcast@mail.berlios.de)  
+ * 
+ * This program is free software; you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.  
+ * 
+ * Please read license.txt for the full details. A copy of the GPL may be 
+ * found at http://www.gnu.org/copyleft/lgpl.html  
+ * 
+ * You should have received a copy of the GNU General Public License 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.io;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.ListIterator;
+
+import digilib.util.ImageSize;
+
+/**
+ * @author casties
+ */
+public class ImageSet {
+
+	/** list of files (ImageFile) */
+	protected List<ImageInput> list = null;
+
+	/** aspect ratio (width/height) */
+	protected float aspect = 0f;
+
+	/** resolution of the biggest image (DPI) */
+	protected float resX = 0f;
+
+	/** resolution of the biggest image (DPI) */
+	protected float resY = 0f;
+
+	/**
+	 * Creator for empty fileset.
+	 * 
+	 * 
+	 * @param initialCapacity
+	 */
+	public ImageSet() {
+		list = new ArrayList<ImageInput>();
+	}
+
+	/**
+	 * The number of image files in this Fileset.
+	 * 
+	 * 
+	 * @return number of image files
+	 */
+	public int size() {
+		return (list != null) ? list.size() : 0;
+	}
+
+	/**
+	 * Gets the default Input.
+	 *  
+	 */
+	public ImageInput get() {
+		return (list != null) ? list.get(0) : null;
+	}
+
+	/**
+	 * Get the ImageFile at the index.
+	 * 
+	 * 
+	 * @param index
+	 * @return
+	 */
+	public ImageInput get(int index) {
+		return list.get(index);
+	}
+
+	/**
+	 * Get the next smaller ImageFile than the given size.
+	 * 
+	 * Returns the ImageFile from the set that has a width and height smaller or
+	 * equal the given size. Returns null if there isn't any smaller image.
+	 * 
+	 * @param size
+	 * @param info
+	 * @return
+	 */
+	public ImageInput getNextSmaller(ImageSize size) {
+		for (ListIterator<ImageInput> i = getHiresIterator(); i.hasNext();) {
+			ImageInput f = i.next();
+            ImageSize is = f.getSize();
+            if (is != null && is.isTotallySmallerThan(size)) {
+				return f;
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Get the next bigger ImageFile than the given size.
+	 * 
+	 * Returns the ImageFile from the set that has a width or height bigger or
+	 * equal the given size. Returns null if there isn't any bigger image.
+	 * 
+	 * @param size
+	 * @param info
+	 * @return
+	 */
+	public ImageInput getNextBigger(ImageSize size) {
+		for (ListIterator<ImageInput> i = getLoresIterator(); i.hasPrevious();) {
+			ImageInput f = i.previous();
+			ImageSize is = f.getSize();
+			if (is != null && is.isBiggerThan(size)) {
+				return f;
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * Returns the biggest ImageFile in the set.
+	 * 
+	 * 
+	 * @return
+	 */
+	public ImageInput getBiggest() {
+		return this.get(0);
+	}
+
+	/**
+	 * Returns the biggest ImageFile in the set.
+	 * 
+	 * 
+	 * @return
+	 */
+	public ImageInput getSmallest() {
+		return this.get(this.size() - 1);
+	}
+
+	/**
+	 * Get an Iterator for this Fileset starting at the highest resolution
+	 * images.
+	 * 
+	 * 
+	 * @return
+	 */
+	public ListIterator<ImageInput> getHiresIterator() {
+		return list.listIterator();
+	}
+
+	/**
+	 * Get an Iterator for this Fileset starting at the lowest resolution
+	 * images.
+	 * 
+	 * The Iterator starts at the last element, so you have to use it backwards
+	 * with hasPrevious() and previous().
+	 * 
+	 * 
+	 * @return
+	 */
+	public ListIterator<ImageInput> getLoresIterator() {
+		return list.listIterator(list.size());
+	}
+
+	/**
+	 * @return
+	 */
+	public float getResX() {
+		return resX;
+	}
+
+	/**
+	 * @return
+	 */
+	public float getResY() {
+		return resY;
+	}
+
+	/**
+	 * Sets the aspect ratio from an ImageSize.
+	 * 
+	 * 
+	 * @param f
+	 */
+	public void setAspect(ImageSize s) {
+		aspect = s.getAspect();
+	}
+
+	/**
+	 * Returns the aspect ratio.
+	 * 
+	 * Aspect ratio is (width/height). So it's <1 for portrait and >1 for
+	 * landscape.
+	 * 
+	 * 
+	 * @return
+	 */
+	public float getAspect() {
+		return aspect;
+	}
+
+    public void checkMeta() {
+        // TODO Auto-generated method stub
+        
+    }
+
+}
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