1 files changed, 63 insertions, 0 deletions
diff --git a/FROMCVS/org.eclipse.pde.tools.versioning/src/org/eclipse/pde/tools/internal/versioning/VersioningProgressMonitorWrapper.java b/FROMCVS/org.eclipse.pde.tools.versioning/src/org/eclipse/pde/tools/internal/versioning/VersioningProgressMonitorWrapper.java
new file mode 100755
index 000000000..6a6c41766
--- /dev/null
+++ b/FROMCVS/org.eclipse.pde.tools.versioning/src/org/eclipse/pde/tools/internal/versioning/VersioningProgressMonitorWrapper.java
@@ -0,0 +1,63 @@
+/*******************************************************************************
+ * Copyright (c) 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
+ *******************************************************************************/
+package org.eclipse.pde.tools.internal.versioning;
+
+import org.eclipse.core.runtime.*;
+
+/**
+ *	a wrapper class of IProgressMonitor which provides methods to
+ *	get access to the wrapped IProgressMonitor instance
+ */
+public class VersioningProgressMonitorWrapper extends ProgressMonitorWrapper {
+	// the wrapped monitor is not supposed to be used more than once, 
+	// this flag will be set as true when the first time it is started, and
+	// will not be set as false when the monitor's task is done.
+	private boolean monitorStarted;
+
+	/**
+	 * constructor
+	 * @param monitor
+	 */
+	public VersioningProgressMonitorWrapper(IProgressMonitor monitor) {
+		super(monitor);
+		monitorStarted = false;
+	}
+
+	/**
+	 * get a new sub monitor of wrapped progress monitor
+	 *
+	 * @return IProgressMonitor instance
+	 */
+	public IProgressMonitor getSubMonitor(int ticks) {
+		return new SubProgressMonitor(this.getWrappedProgressMonitor(), ticks);
+	}
+
+	/**
+	 * starts the wrapped monitor
+	 * @see IProgressMonitor#beginTask(String, int)
+	 */
+	public void beginTask(String name, int totalWork) {
+		if (!monitorStarted) {
+			this.getWrappedProgressMonitor().beginTask(name, totalWork);
+			monitorStarted = true;
+		}
+	}
+
+	/**
+	 * if <code>monitor</code> is <code>null</code> return a new NullProgressMonitor instance,
+	 * otherwise return <code>monitor</code>
+	 * @param monitor IProgressMonitor instance
+	 * @return IProgressMonitor instance
+	 */
+	public static IProgressMonitor monitorFor(IProgressMonitor monitor) {
+		return monitor == null ? new NullProgressMonitor() : monitor;
+	}
+}
+\ No newline at end of file