disable clock anims option. fixes #137

Author: ButchersBoy

MaterialDesignThemes.Wpf/Clock.cs

@@ -35,13 +35,18 @@ public enum ClockDisplayAutomation
     [TemplatePart(Name = MinutesCanvasPartName, Type = typeof(Canvas))]
 	[TemplatePart(Name = MinuteReadOutPartName, Type = typeof(TextBlock))]
 	[TemplatePart(Name = HourReadOutPartName, Type = typeof(TextBlock))]
+    [TemplateVisualState(GroupName = "DisplayModeStates", Name = HoursVisualStateName)]
+    [TemplateVisualState(GroupName = "DisplayModeStates", Name = MinutesVisualStateName)]
     public class Clock : Control
 	{
 		public const string HoursCanvasPartName = "PART_HoursCanvas";
         public const string MinutesCanvasPartName = "PART_MinutesCanvas";
 		public const string MinuteReadOutPartName = "PART_MinuteReadOut";
 		public const string HourReadOutPartName = "PART_HourReadOut";
 
+	    public const string HoursVisualStateName = "Hours";
+        public const string MinutesVisualStateName = "Minutes";
+
         private Point _centreCanvas = new Point(0, 0);
         private Point _currentStartPosition = new Point(0, 0);
 		private TextBlock _hourReadOutPartName;
@@ -131,9 +136,14 @@ public bool Is24Hours
 
 
 		public static readonly DependencyProperty DisplayModeProperty = DependencyProperty.Register(
-			"DisplayMode", typeof (ClockDisplayMode), typeof (Clock), new PropertyMetadata(ClockDisplayMode.Hours));
+			"DisplayMode", typeof (ClockDisplayMode), typeof (Clock), new FrameworkPropertyMetadata(ClockDisplayMode.Hours, DisplayModePropertyChangedCallback));
+
+	    private static void DisplayModePropertyChangedCallback(DependencyObject dependencyObject, DependencyPropertyChangedEventArgs dependencyPropertyChangedEventArgs)
+	    {
+	        ((Clock)dependencyObject).GotoVisualState(!TransitionAssist.GetDisableTransitions(dependencyObject));
+	    }
 
-		public ClockDisplayMode DisplayMode
+	    public ClockDisplayMode DisplayMode
 		{
 			get { return (ClockDisplayMode) GetValue(DisplayModeProperty); }
 			set { SetValue(DisplayModeProperty, value); }
@@ -235,8 +245,16 @@ public override void OnApplyTemplate()
 				_minuteReadOutPartName.PreviewMouseLeftButtonDown += MinuteReadOutPartNameOnPreviewMouseLeftButtonDown;
 
 			base.OnApplyTemplate();
+
+            GotoVisualState(false);
 		}
 
+	    private void GotoVisualState(bool useTransitions)
+	    {
+	        VisualStateManager.GoToState(this,
+	            DisplayMode == ClockDisplayMode.Minutes ? MinutesVisualStateName : HoursVisualStateName, useTransitions);
+	    }
+
 	    private void GenerateButtons()
 	    {
 	        var hoursCanvas = GetTemplateChild(HoursCanvasPartName) as Canvas;