--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface/src/org/eclipse/jface/resource/ImageDataImageDescriptor.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,121 @@
+/*******************************************************************************
+ * Copyright (c) 2004, 2007 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.jface.resource.ImageDataImageDescriptor;
+
+import org.eclipse.swt.graphics.Device;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.ImageData;
+
+import org.eclipse.jface.resource.ImageDescriptor;
+
+import java.lang.all;
+
+/**
+ * @since 3.1
+ */
+class ImageDataImageDescriptor : ImageDescriptor {
+
+    private ImageData data;
+
+    /**
+     * Original image being described, or null if this image is described
+     * completely using its ImageData
+     */
+    private Image originalImage = null;
+
+    /**
+     * Creates an image descriptor, given an image and the device it was created on.
+     *
+     * @param originalImage
+     */
+    this(Image originalImage) {
+        this(originalImage.getImageData());
+        this.originalImage = originalImage;
+    }
+
+    /**
+     * Creates an image descriptor, given some image data.
+     *
+     * @param data describing the image
+     */
+
+    this(ImageData data) {
+        this.data = data;
+    }
+
+    /* (non-Javadoc)
+     * @see org.eclipse.jface.resource.DeviceResourceDescriptor#create(org.eclipse.swt.graphics.Device)
+     */
+    public override Object createResource(Device device) {
+
+        // If this descriptor is an existing font, then we can return the original font
+        // if this is the same device.
+        if (originalImage !is null) {
+            // If we're allocating on the same device as the original font, return the original.
+            if (originalImage.getDevice() is device) {
+                return originalImage;
+            }
+        }
+
+        return super.createResource(device);
+    }
+
+    /* (non-Javadoc)
+     * @see org.eclipse.jface.resource.DeviceResourceDescriptor#destroy(java.lang.Object)
+     */
+    public override void destroyResource(Object previouslyCreatedObject) {
+        if (previouslyCreatedObject is originalImage) {
+            return;
+        }
+
+        super.destroyResource(previouslyCreatedObject);
+    }
+
+    /* (non-Javadoc)
+     * @see org.eclipse.jface.resource.ImageDescriptor#getImageData()
+     */
+    public override ImageData getImageData() {
+        return data;
+    }
+
+    /* (non-Javadoc)
+     * @see Object#hashCode
+     */
+    public override hash_t toHash() {
+         if (originalImage !is null) {
+             return System.identityHashCode(originalImage);
+         }
+         return data.toHash();
+    }
+
+    /* (non-Javadoc)
+     * @see Object#equals
+     */
+    public override int opEquals(Object obj) {
+        if (!(cast(ImageDataImageDescriptor)obj )) {
+            return false;
+        }
+
+        ImageDataImageDescriptor imgWrap = cast(ImageDataImageDescriptor) obj;
+
+        //Intentionally using is instead of equals() as Image.hashCode() changes
+        //when the image is disposed and so leaks may occur with equals()
+
+        if (originalImage !is null) {
+            return imgWrap.originalImage is originalImage;
+        }
+
+        return (imgWrap.originalImage is null && data.opEquals(imgWrap.data));
+    }
+
+}