--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/action/ContributionItem.d	Tue Apr 01 08:00:31 2008 +0200
@@ -0,0 +1,218 @@
+/*******************************************************************************
+ * 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.action.ContributionItem;
+
+import dwtx.jface.action.IContributionItem;
+import dwtx.jface.action.IContributionManager;
+
+import dwt.widgets.Composite;
+import dwt.widgets.CoolBar;
+import dwt.widgets.Menu;
+import dwt.widgets.ToolBar;
+
+import dwt.dwthelper.utils;
+
+/**
+ * An abstract base implementation for contribution items.
+ */
+public abstract class ContributionItem : IContributionItem {
+
+    /**
+     * The identifier for this contribution item, of <code>null</code> if none.
+     */
+    private String id = null;
+
+    /**
+     * Indicates this item is visible in its manager; <code>true</code>
+     * by default.
+     */
+    private bool visible = true;
+
+    /**
+     * The parent contribution manager for this item
+     */
+    private IContributionManager parent;
+
+    /**
+     * Creates a contribution item with a <code>null</code> id.
+     * Calls <code>this(String)</code> with <code>null</code>.
+     */
+    protected this() {
+        this(null);
+    }
+
+    /**
+     * Creates a contribution item with the given (optional) id.
+     * The given id is used to find items in a contribution manager,
+     * and for positioning items relative to other items.
+     *
+     * @param id the contribution item identifier, or <code>null</code>
+     */
+    protected this(String id) {
+        this.id = id;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     */
+    public void dispose() {
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     */
+    public void fill(Composite parent) {
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     */
+    public void fill(Menu menu, int index) {
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     */
+    public void fill(ToolBar parent, int index) {
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     *
+     * @since 3.0
+     */
+    public void fill(CoolBar parent, int index) {
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     *
+     * @since 3.0
+     */
+    public void saveWidgetState() {
+    }
+
+    /* (non-Javadoc)
+     * Method declared on IContributionItem.
+     */
+    public String getId() {
+        return id;
+    }
+
+    /**
+     * Returns the parent contribution manager, or <code>null</code> if this
+     * contribution item is not currently added to a contribution manager.
+     *
+     * @return the parent contribution manager, or <code>null</code>
+     * @since 2.0
+     */
+    public IContributionManager getParent() {
+        return parent;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns <code>false</code>. Subclasses may override.
+     */
+    public bool isDirty() {
+        // @issue should this be false instead of calling isDynamic()?
+        return isDynamic();
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns <code>true</code>. Subclasses may override.
+     */
+    public bool isEnabled() {
+        return true;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns <code>false</code>. Subclasses may override.
+     */
+    public bool isDynamic() {
+        return false;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns <code>false</code>. Subclasses may override.
+     */
+    public bool isGroupMarker() {
+        return false;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns <code>false</code>. Subclasses may override.
+     */
+    public bool isSeparator() {
+        return false;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method returns the value recorded in an internal state variable,
+     * which is <code>true</code> by default. <code>setVisible</code>
+     * should be used to change this setting.
+     */
+    public bool isVisible() {
+        return visible;
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method stores the value in an internal state variable,
+     * which is <code>true</code> by default.
+     */
+    public void setVisible(bool visible) {
+        this.visible = visible;
+    }
+
+    /**
+     * Returns a string representation of this contribution item
+     * suitable only for debugging.
+     */
+    public String toString() {
+        return this.classinfo.name ~ "(id=" ~ getId() ~ ")";//$NON-NLS-2$//$NON-NLS-1$
+    }
+
+    /**
+     * The default implementation of this <code>IContributionItem</code>
+     * method does nothing. Subclasses may override.
+     */
+    public void update() {
+    }
+
+    /* (non-Javadoc)
+     * Method declared on IContributionItem.
+     */
+    public void setParent(IContributionManager parent) {
+        this.parent = parent;
+    }
+
+    /**
+     * The <code>ContributionItem</code> implementation of this
+     * method declared on <code>IContributionItem</code> does nothing.
+     * Subclasses should override to update their state.
+     */
+    public void update(String id) {
+    }
+}