Initial commit — M3U playlist tool with MP3/AAC encoding

Backup/IProgressCallback.cs

@@ -0,0 +1,68 @@
+using System;
+
+/// <summary>
+/// This defines an interface which can be implemented by UI elements
+/// which indicate the progress of a long operation.
+/// (See ProgressWindow for a typical implementation)
+/// </summary>
+/// <remarks>Based on http://www.codeproject.com/cs/miscctrl/progressdialog.asp </remarks>
+public interface IProgressCallback
+{
+	/// <summary>
+	/// Call this method from the worker thread to initialize
+	/// the progress callback.
+	/// </summary>
+	/// <param name="minimum">The minimum.</param>
+	/// <param name="maximum">The maximum.</param>
+	void Begin(int minimum, int maximum);
+
+	/// <summary>
+	/// Call this method from the worker thread to initialize
+	/// the progress callback, without setting the range
+	/// </summary>
+	void Begin();
+
+	/// <summary>
+	/// Call this method from the worker thread to reset the range in the
+	/// progress callback
+	/// </summary>
+	/// <param name="minimum">The minimum.</param>
+	/// <param name="maximum">The maximum.</param>
+	void SetRange(int minimum, int maximum);
+
+	/// <summary>
+	/// Call this method from the worker thread to update the progress text.
+	/// </summary>
+	/// <param name="text">The text.</param>
+	void SetText(String text);
+
+	/// <summary>
+	/// Call this method from the worker thread to increase the progress
+	/// counter by a specified value.
+	/// </summary>
+	/// <param name="val">The val.</param>
+	void StepTo(int val);
+
+	/// <summary>
+	/// Call this method from the worker thread to step the progress meter to a
+	/// particular value.
+	/// </summary>
+	/// <param name="val">The val.</param>
+	void Increment(int val);
+
+	/// <summary>
+	/// If this property is true, then you should abort work
+	/// </summary>
+	/// <value>
+	/// 	<c>true</c> if this instance is aborting; otherwise, <c>false</c>.
+	/// </value>
+	bool IsAborting
+	{
+		get;
+	}
+
+	/// <summary>
+	/// Call this method from the worker thread to finalize the progress meter
+	/// </summary>
+	void End();
+}