--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/viewers/ListViewer.d	Mon Mar 31 00:47:19 2008 +0200
@@ -0,0 +1,248 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 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
+ *     Brad Reynolds - bug 141435
+ *     Tom Schindl <tom.schindl@bestsolution.at> - bug 157309, 177619
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+
+module dwtx.jface.viewers.ListViewer;
+
+import dwtx.jface.viewers.AbstractListViewer;
+
+import tango.util.collection.model.SeqView;
+
+import dwt.DWT;
+import dwt.graphics.Rectangle;
+import dwt.widgets.Composite;
+import dwt.widgets.Control;
+static import dwt.widgets.List;
+import dwtx.core.runtime.Assert;
+
+import dwt.dwthelper.utils;
+
+/**
+ * A concrete viewer based on an DWT <code>List</code> control.
+ * <p>
+ * This class is not intended to be subclassed. It is designed to be
+ * instantiated with a pre-existing DWT <code>List</code> control and configured
+ * with a domain-specific content provider, label provider, element filter (optional),
+ * and element sorter (optional).
+ * <p>
+ * Note that the DWT <code>List</code> control only supports the display of strings, not icons.
+ * If you need to show icons for items, use <code>TableViewer</code> instead.
+ * </p>
+ *
+ * @see TableViewer
+ */
+public class ListViewer : AbstractListViewer {
+
+    /**
+     * This viewer's list control.
+     */
+    private dwt.widgets.List.List list;
+
+    /**
+     * Creates a list viewer on a newly-created list control under the given parent.
+     * The list control is created using the DWT style bits <code>MULTI, H_SCROLL, V_SCROLL,</code> and <code>BORDER</code>.
+     * The viewer has no input, no content provider, a default label provider,
+     * no sorter, and no filters.
+     *
+     * @param parent the parent control
+     */
+    public this(Composite parent) {
+        this(parent, DWT.MULTI | DWT.H_SCROLL | DWT.V_SCROLL | DWT.BORDER);
+    }
+
+    /**
+     * Creates a list viewer on a newly-created list control under the given parent.
+     * The list control is created using the given DWT style bits.
+     * The viewer has no input, no content provider, a default label provider,
+     * no sorter, and no filters.
+     *
+     * @param parent the parent control
+     * @param style the DWT style bits
+     */
+    public this(Composite parent, int style) {
+        this(new dwt.widgets.List.List(parent, style));
+    }
+
+    /**
+     * Creates a list viewer on the given list control.
+     * The viewer has no input, no content provider, a default label provider,
+     * no sorter, and no filters.
+     *
+     * @param list the list control
+     */
+    public this(dwt.widgets.List.List list) {
+        this.list = list;
+        hookControl(list);
+    }
+
+    /* (non-Javadoc)
+     * Method declared on Viewer.
+     */
+    public Control getControl() {
+        return list;
+    }
+
+    /**
+     * Returns this list viewer's list control.
+     *
+     * @return the list control
+     */
+    public dwt.widgets.List.List getList() {
+        return list;
+    }
+
+    /*
+     * Non-Javadoc.
+     * Method defined on StructuredViewer.
+     */
+    public void reveal(Object element) {
+        Assert.isNotNull(element);
+        int index = getElementIndex(element);
+        if (index is -1) {
+            return;
+        }
+        // algorithm patterned after List.showSelection()
+        int count = list.getItemCount();
+        if (count is 0) {
+            return;
+        }
+        int height = list.getItemHeight();
+        Rectangle rect = list.getClientArea();
+        int topIndex = list.getTopIndex();
+        int visibleCount = Math.max(rect.height / height, 1);
+        int bottomIndex = Math.min(topIndex + visibleCount, count) - 1;
+        if ((topIndex <= index) && (index <= bottomIndex)) {
+            return;
+        }
+        int newTop = Math.min(Math.max(index - (visibleCount / 2), 0),
+                count - 1);
+        list.setTopIndex(newTop);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listAdd(java.lang.String, int)
+     */
+    protected void listAdd(String string, int index) {
+        list.add(string, index);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listSetItem(int, java.lang.String)
+     */
+    protected void listSetItem(int index, String string) {
+        list.setItem(index, string);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listGetSelectionIndices()
+     */
+    protected int[] listGetSelectionIndices() {
+        return list.getSelectionIndices();
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listGetItemCount()
+     */
+    protected int listGetItemCount() {
+        return list.getItemCount();
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listSetItems(java.lang.String[])
+     */
+    protected void listSetItems(String[] labels) {
+        list.setItems(labels);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listRemoveAll()
+     */
+    protected void listRemoveAll() {
+        list.removeAll();
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listRemove(int)
+     */
+    protected void listRemove(int index) {
+        list.remove(index);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listSelectAndShow(int[])
+     */
+    protected void listSetSelection(int[] ixs) {
+        list.setSelection(ixs);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listDeselectAll()
+     */
+    protected void listDeselectAll() {
+        list.deselectAll();
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listShowSelection()
+     */
+    protected void listShowSelection() {
+        list.showSelection();
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listGetTopIndex()
+     */
+    protected int listGetTopIndex() {
+        return list.getTopIndex();
+    }
+
+    /*
+     * (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#listSetTopIndex(int)
+     */
+    protected void listSetTopIndex(int index) {
+        list.setTopIndex(index);
+    }
+
+    /* (non-Javadoc)
+     * @see dwtx.jface.viewers.AbstractListViewer#setSelectionToWidget(java.util.List, bool)
+     */
+    protected void setSelectionToWidget(SeqView!(Object) in_, bool reveal) {
+        if( reveal ) {
+            super.setSelectionToWidget(in_, reveal);
+        } else {
+            if (in_ is null || in_.size() is 0) { // clear selection
+                list.deselectAll();
+            } else {
+                int n = in_.size();
+                int[] ixs = new int[n];
+                int count = 0;
+                for (int i = 0; i < n; ++i) {
+                    Object el = in_.get(i);
+                    int ix = getElementIndex(el);
+                    if (ix >= 0) {
+                        ixs[count++] = ix;
+                    }
+                }
+                if (count < n) {
+                    System.arraycopy(ixs, 0, ixs = new int[count], 0, count);
+                }
+                list.deselectAll();
+                list.select(ixs);
+            }
+        }
+    }
+
+
+}