--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/text/source/VisualAnnotationModel.d	Sat Aug 23 19:10:48 2008 +0200
@@ -0,0 +1,148 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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 dwtx.jface.text.source.VisualAnnotationModel;
+
+import dwt.dwthelper.utils;
+
+
+import java.util.ArrayList;
+import java.util.Iterator;
+
+import dwtx.jface.text.IDocument;
+import dwtx.jface.text.Position;
+
+
+
+/**
+ * Annotation model for visual annotations. Assume a viewer's input element is annotated with
+ * some semantic annotation such as a breakpoint and that it is simultaneously shown in multiple
+ * viewers. A source viewer, e.g., supports visual range indication for which it utilizes
+ * annotations. The range indicating annotation is specific to the visual presentation
+ * of the input element in this viewer and thus should only be visible in this viewer. The
+ * breakpoints however are independent from the input element's presentation and thus should
+ * be shown in all viewers in which the element is shown. As a viewer supports one vertical
+ * ruler which is based on one annotation model, there must be a visual annotation model for
+ * each viewer which all wrap the same element specific model annotation model.
+ */
+class VisualAnnotationModel : AnnotationModel , IAnnotationModelListener {
+
+    /** The wrapped model annotation model */
+    private IAnnotationModel fModel;
+
+    /**
+     * Constructs a visual annotation model which wraps the given
+     * model based annotation model
+     *
+     * @param modelAnnotationModel the model based annotation model
+     */
+    public VisualAnnotationModel(IAnnotationModel modelAnnotationModel) {
+        fModel= modelAnnotationModel;
+    }
+
+    /**
+     * Returns the visual annotation model's wrapped model based annotation model.
+     *
+     * @return the model based annotation model
+     */
+    public IAnnotationModel getModelAnnotationModel() {
+        return fModel;
+    }
+
+    /*
+     * @see IAnnotationModel#addAnnotationModelListener(IAnnotationModelListener)
+     */
+    public void addAnnotationModelListener(IAnnotationModelListener listener) {
+
+        if (fModel !is null && fAnnotationModelListeners.isEmpty())
+            fModel.addAnnotationModelListener(this);
+
+        super.addAnnotationModelListener(listener);
+    }
+
+    /*
+     * @see IAnnotationModel#connect(IDocument)
+     */
+    public void connect(IDocument document) {
+        super.connect(document);
+        if (fModel !is null)
+            fModel.connect(document);
+    }
+
+    /*
+     * @see IAnnotationModel#disconnect(IDocument)
+     */
+    public void disconnect(IDocument document) {
+        super.disconnect(document);
+        if (fModel !is null)
+            fModel.disconnect(document);
+    }
+
+    /*
+     * @see IAnnotationModel#getAnnotationIterator()
+     */
+    public Iterator getAnnotationIterator() {
+
+        if (fModel is null)
+            return super.getAnnotationIterator();
+
+        ArrayList a= new ArrayList(20);
+
+        Iterator e= fModel.getAnnotationIterator();
+        while (e.hasNext())
+            a.add(e.next());
+
+        e= super.getAnnotationIterator();
+        while (e.hasNext())
+            a.add(e.next());
+
+        return a.iterator();
+    }
+
+    /*
+     * @see IAnnotationModel#getPosition(Annotation)
+     */
+    public Position getPosition(Annotation annotation) {
+
+        Position p= (Position) getAnnotationMap().get(annotation);
+        if (p !is null)
+            return p;
+
+        if (fModel !is null)
+            return fModel.getPosition(annotation);
+
+        return null;
+    }
+
+    /*
+     * @see IAnnotationModelListener#modelChanged(IAnnotationModel)
+     */
+    public void modelChanged(IAnnotationModel model) {
+        if (model is fModel) {
+            Iterator iter= new ArrayList(fAnnotationModelListeners).iterator();
+            while (iter.hasNext()) {
+                IAnnotationModelListener l= (IAnnotationModelListener)iter.next();
+                l.modelChanged(this);
+            }
+        }
+    }
+
+    /*
+     * @see IAnnotationModel#removeAnnotationModelListener(IAnnotationModelListener)
+     */
+    public void removeAnnotationModelListener(IAnnotationModelListener listener) {
+        super.removeAnnotationModelListener(listener);
+
+        if (fModel !is null && fAnnotationModelListeners.isEmpty())
+            fModel.removeAnnotationModelListener(this);
+    }
+}