--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/jface/util/Policy.d	Fri Mar 28 17:08:33 2008 +0100
@@ -0,0 +1,217 @@
+/*******************************************************************************
+ * 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
+ *     Chris Gross (schtoo@schtoo.com) - support for ILogger added
+ *       (bug 49497 [RCP] JFace dependency on dwtx.core.runtime enlarges standalone JFace applications)
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.jface.util.Policy;
+
+static import dwtx.core.runtime.Assert;
+import dwtx.core.runtime.IStatus;
+import dwtx.jface.dialogs.AnimatorFactory;
+import dwtx.jface.dialogs.ErrorSupportProvider;
+
+import dwtx.jface.util.ILogger;
+
+import dwt.dwthelper.utils;
+import tango.io.Stdout;
+
+/**
+ * The Policy class handles settings for behaviour, debug flags and logging
+ * within JFace.
+ *
+ * @since 3.0
+ */
+public class Policy {
+
+    /**
+     * Constant for the the default setting for debug options.
+     */
+    public static const bool DEFAULT = false;
+
+    /**
+     * The unique identifier of the JFace plug-in.
+     */
+    public static const String JFACE = "dwtx.jface";//$NON-NLS-1$
+
+    private static ILogger log;
+
+    private static Comparator viewerComparator;
+
+    private static AnimatorFactory animatorFactory;
+
+    /**
+     * A flag to indicate whether unparented dialogs should be checked.
+     */
+    public static bool DEBUG_DIALOG_NO_PARENT = DEFAULT;
+
+    /**
+     * A flag to indicate whether actions are being traced.
+     */
+    public static bool TRACE_ACTIONS = DEFAULT;
+
+    /**
+     * A flag to indicate whether toolbars are being traced.
+     */
+
+    public static bool TRACE_TOOLBAR = DEFAULT;
+
+    private static ErrorSupportProvider errorSupportProvider;
+
+    /**
+     * Returns the dummy log to use if none has been set
+     */
+    private static ILogger getDummyLog() {
+        return new class ILogger {
+            public void log(IStatus status) {
+                Stderr.formatln(status.getMessage());
+                if (status.getException() !is null) {
+                    auto e = status.getException();
+                    Stderr( "Exception in {}({}): {}", e.file, e.line, e.msg );
+                    foreach( msg; e.info ){
+                        Stderr( "    trc: {}", msg );
+                    }
+//                     status.getException().printStackTrace();
+                }
+            }
+        };
+    }
+
+    /**
+     * Sets the logger used by JFace to log errors.
+     *
+     * @param logger
+     *            the logger to use, or <code>null</code> to use the default
+     *            logger
+     * @since 3.1
+     */
+    public static void setLog(ILogger logger) {
+        log = logger;
+    }
+
+    /**
+     * Returns the logger used by JFace to log errors.
+     * <p>
+     * The default logger prints the status to <code>System.err</code>.
+     * </p>
+     *
+     * @return the logger
+     * @since 3.1
+     */
+    public static ILogger getLog() {
+        if (log is null) {
+            log = getDummyLog();
+        }
+        return log;
+    }
+
+    /**
+     * Return the default comparator used by JFace to sort strings.
+     *
+     * @return a default comparator used by JFace to sort strings
+     */
+    private static Comparator getDefaultComparator() {
+        return new class() Comparator {
+            /**
+             * Compares string s1 to string s2.
+             *
+             * @param s1
+             *            string 1
+             * @param s2
+             *            string 2
+             * @return Returns an integer value. Value is less than zero if
+             *         source is less than target, value is zero if source and
+             *         target are equal, value is greater than zero if source is
+             *         greater than target.
+             * @exception ClassCastException
+             *                the arguments cannot be cast to Strings.
+             */
+            public int compare(Object s1, Object s2) {
+                auto a = (cast(ArrayWrapperString) s1).array;
+                auto b = (cast(ArrayWrapperString) s2).array;
+                return a < b;
+            }
+        };
+    }
+
+    /**
+     * Return the comparator used by JFace to sort strings.
+     *
+     * @return the comparator used by JFace to sort strings
+     * @since 3.2
+     */
+    public static Comparator getComparator() {
+        if (viewerComparator is null) {
+            viewerComparator = getDefaultComparator();
+        }
+        return viewerComparator;
+    }
+
+    /**
+     * Sets the comparator used by JFace to sort strings.
+     *
+     * @param comparator
+     *            comparator used by JFace to sort strings
+     * @since 3.2
+     */
+    public static void setComparator(Comparator comparator) {
+        dwtx.core.runtime.Assert.Assert.isTrue(viewerComparator is null);
+        viewerComparator = comparator;
+    }
+
+    /**
+     * Sets the animator factory used by JFace to create control animator
+     * instances.
+     *
+     * @param factory
+     *            the AnimatorFactory to use.
+     * @since 3.2
+     * @deprecated this is no longer in use as of 3.3
+     */
+    public static void setAnimatorFactory(AnimatorFactory factory) {
+        animatorFactory = factory;
+    }
+
+    /**
+     * Returns the animator factory used by JFace to create control animator
+     * instances.
+     *
+     * @return the animator factory used to create control animator instances.
+     * @since 3.2
+     * @deprecated this is no longer in use as of 3.3
+     */
+    public static AnimatorFactory getAnimatorFactory() {
+        if (animatorFactory is null)
+            animatorFactory = new AnimatorFactory();
+        return animatorFactory;
+    }
+
+    /**
+     * Set the error support provider for error dialogs.
+     *
+     * @param provider
+     * @since 3.3
+     */
+    public static void setErrorSupportProvider(ErrorSupportProvider provider) {
+        errorSupportProvider = provider;
+    }
+
+    /**
+     * Return the ErrorSupportProvider for the receiver.
+     *
+     * @return ErrorSupportProvider or <code>null</code> if this has not been set
+     * @since 3.3
+     */
+    public static ErrorSupportProvider getErrorSupportProvider() {
+        return errorSupportProvider;
+    }
+
+}