--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/preference/IPreferencePage.d	Sat Apr 05 01:45:47 2008 +0200
@@ -0,0 +1,82 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 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.preference.IPreferencePage;
+
+import dwtx.jface.preference.IPreferencePageContainer;
+
+import dwt.graphics.Point;
+import dwtx.jface.dialogs.IDialogPage;
+
+/**
+ * An interface for a preference page. This interface
+ * is used primarily by the page's container
+ */
+public interface IPreferencePage : IDialogPage {
+
+    /**
+     * Computes a size for this page's UI component.
+     *
+     * @return the size of the preference page encoded as
+     *   <code>new Point(width,height)</code>, or
+     *   <code>(0,0)</code> if the page doesn't currently have any UI component
+     */
+    public Point computeSize();
+
+    /**
+     * Returns whether this dialog page is in a valid state.
+     *
+     * @return <code>true</code> if the page is in a valid state,
+     *   and <code>false</code> if invalid
+     */
+    public bool isValid();
+
+    /**
+     * Checks whether it is alright to leave this page.
+     *
+     * @return <code>false</code> to abort page flipping and the
+     *  have the current page remain visible, and <code>true</code>
+     *  to allow the page flip
+     */
+    public bool okToLeave();
+
+    /**
+     * Notifies that the container of this preference page has been canceled.
+     *
+     * @return <code>false</code> to abort the container's cancel
+     *  procedure and <code>true</code> to allow the cancel to happen
+     */
+    public bool performCancel();
+
+    /**
+     * Notifies that the OK button of this page's container has been pressed.
+     *
+     * @return <code>false</code> to abort the container's OK
+     *  processing and <code>true</code> to allow the OK to happen
+     */
+    public bool performOk();
+
+    /**
+     * Sets or clears the container of this page.
+     *
+     * @param preferencePageContainer the preference page container, or <code>null</code>
+     */
+    public void setContainer(IPreferencePageContainer preferencePageContainer);
+
+    /**
+     * Sets the size of this page's UI component.
+     *
+     * @param size the size of the preference page encoded as
+     *   <code>new Point(width,height)</code>
+     */
+    public void setSize(Point size);
+}