GUI桌面环境

Gui/UILib/Animations/EasingDirection.cs

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+namespace CMLeonOS.UILib.Animations
+{
+    /// <summary>
+    /// Defines the direction of an easing type.
+    /// </summary>
+    internal enum EasingDirection
+    {
+        /// <summary>
+        /// Starts the animation slowly, and finishes at full speed.
+        /// </summary>
+        In,
+
+        /// <summary>
+        /// Starts the animation at full speed, and finishes slowly.
+        /// </summary>
+        Out,
+
+        /// <summary>
+        /// Starts the animation slowly, reaches full speed at the middle, and finishes slowly.
+        /// </summary>
+        InOut
+    }
+}