Initial Commit

Charts/Navigation/InertialMouseNavigation.cs

@@ -0,0 +1,94 @@
+// todo look to comment for EndlessAnimation
+
+//using System;
+//using System.Collections.Generic;
+//using System.Linq;
+//using System.Text;
+//using Microsoft.Research.DynamicDataDisplay.Navigation;
+//using System.Windows.Input;
+//using System.Windows;
+//using System.Windows.Media.Animation;
+//using System.Windows.Media;
+//using System.Diagnostics;
+
+//namespace Microsoft.Research.DynamicDataDisplay.Charts.Navigation
+//{
+//    [Obsolete("Unready because Viewport became non-visual and no longer has BeginAnimation method.", true)]
+//    public class InertialMouseNavigation : MouseNavigation
+//    {
+//        public InertialMouseNavigation()
+//        {
+//        }
+
+//        Point visibleStart;
+//        Point panningStartPointInScreen;
+//        int panningStartTime;
+//        protected override void StartPanning(MouseButtonEventArgs e)
+//        {
+//            visibleStart = Viewport.Visible.Location;
+//            panningStartPointInScreen = e.GetPosition(this);
+//            base.StartPanning(e);
+//            panningStartTime = e.Timestamp;
+//        }
+
+//        bool runningAnimation = false;
+//        protected override void StopPanning(MouseButtonEventArgs e)
+//        {
+//            Point panningStopPointInScreen = e.GetPosition(this);
+
+//            base.StopPanning(e);
+
+
+//            // mouse click with no panning
+//            if (panningStartPointInScreen == panningStopPointInScreen)
+//            {
+//                // remove all animations on Viewport.Visible
+//                BeginVisibleAnimation(null);
+//                return;
+//            }
+
+//            double panningDuration = (e.Timestamp - panningStartTime) / 1000.0;
+
+//            double animationStartMinDuration = 0.5; // seconds
+//            double animationStartMinMouseShift = 50; // pixels
+
+//            // mouse moved short enough and for rather long distance.
+//            if (panningDuration < animationStartMinDuration && (panningStopPointInScreen - panningStartPointInScreen).Length > animationStartMinMouseShift)
+//            {
+//                Vector visibleShift = Viewport.Visible.Location - visibleStart;
+
+//                EndlessPanningRectAnimation panningAnimation = new EndlessPanningRectAnimation(
+//                    Viewport.Visible,
+//                    visibleShift / panningDuration);
+
+//                BeginVisibleAnimation(panningAnimation);
+//            }
+//        }
+
+//        private void BeginVisibleAnimation(AnimationTimeline animation)
+//        {
+//            if (animation != null)
+//            {
+//                if (runningAnimation)
+//                {
+//                    BeginVisibleAnimation(null);
+//                }
+
+//                //Plotter2D.Viewport.BeginAnimation(Viewport2D.VisibleProperty, animation);
+//                runningAnimation = true;
+//            }
+//            else
+//            {
+//                if (!runningAnimation)
+//                    return;
+
+//                Debug.WriteLine("Removing animation");
+
+//                Rect visible = Plotter2D.Viewport.Visible;
+//                //Plotter2D.Viewport.BeginAnimation(Viewport2D.VisibleProperty, null);
+//                Plotter2D.Viewport.Visible = visible;
+//                runningAnimation = false;
+//            }
+//        }
+//    }
+//}