From a2eeb54c55f4ab928b4a74eb414a7dd0f98322b7 Mon Sep 17 00:00:00 2001
From: stubbfel <stubbfel@tutcottbus.de>
Date: Mon, 15 Jul 2013 15:17:21 +0200
Subject: [PATCH] finish #107

---
 CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj |   1 -
 .../CampusAppWP8/Styles/ListButton.xaml       |  10 +-
 .../CampusAppWP8/Styles/StartPageStyles.xaml  |   4 +-
 .../CampusAppWP8/Utility/TiltEffect.cs        | 648 ------------------
 4 files changed, 7 insertions(+), 656 deletions(-)
 delete mode 100644 CampusAppWP8/CampusAppWP8/Utility/TiltEffect.cs

diff --git a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
index 735540fb..33549925 100644
--- a/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
+++ b/CampusAppWP8/CampusAppWP8/CampusAppWP8.csproj
@@ -216,7 +216,6 @@
     <Compile Include="Utility\Lui\Button\PhoneButton.cs" />
     <Compile Include="Utility\Lui\Button\LinkButton.cs" />
     <Compile Include="Utility\StringManager.cs" />
-    <Compile Include="Utility\TiltEffect.cs" />
     <Compile Include="Utility\URLList.cs" />
     <Compile Include="Utility\XmlApi.cs" />
     <Compile Include="Utility\XmlFeed.cs" />
diff --git a/CampusAppWP8/CampusAppWP8/Styles/ListButton.xaml b/CampusAppWP8/CampusAppWP8/Styles/ListButton.xaml
index a5fc5adc..d166dc93 100644
--- a/CampusAppWP8/CampusAppWP8/Styles/ListButton.xaml
+++ b/CampusAppWP8/CampusAppWP8/Styles/ListButton.xaml
@@ -2,13 +2,13 @@
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-  xmlns:tilt="clr-namespace:CampusAppWP8.Utility"
+  xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
   mc:Ignorable="d">
     <Style x:Key="ListButtonStyle" TargetType="Button">
-        <Setter Property="Background" Value="{StaticResource PhoneAccentBrush}"/>
-        <Setter Property="BorderBrush" Value="{StaticResource PhoneBorderBrush}"/>
-        <Setter Property="BorderThickness" Value="0,2,0,0"/>
+        <Setter Property="Background" Value="{x:Null}"/>
+        <Setter Property="BorderBrush" Value="{StaticResource PhoneAccentBrush}"/>
+        <Setter Property="BorderThickness" Value="6,1,6,1"/>
         <Setter Property="Margin" Value="-11"/>
-       <Setter Property="tilt:TiltEffect.IsTiltEnabled" Value="True"/>
+       <Setter Property="toolkit:TiltEffect.IsTiltEnabled" Value="True"/>
     </Style>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Styles/StartPageStyles.xaml b/CampusAppWP8/CampusAppWP8/Styles/StartPageStyles.xaml
index 2c6c64cb..cce829f5 100644
--- a/CampusAppWP8/CampusAppWP8/Styles/StartPageStyles.xaml
+++ b/CampusAppWP8/CampusAppWP8/Styles/StartPageStyles.xaml
@@ -2,7 +2,7 @@
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
   xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-  xmlns:tilt="clr-namespace:CampusAppWP8.Utility"
+  xmlns:toolkit="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone.Controls.Toolkit"
   mc:Ignorable="d">
     <Style x:Key="StartPageStackPanelStyle" TargetType="StackPanel">
         <Setter Property="HorizontalAlignment" Value="Center"/>
@@ -16,7 +16,7 @@
         <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
         <Setter Property="BorderThickness" Value="0"/>
         <Setter Property="Padding" Value="0"/>
-        <Setter Property="tilt:TiltEffect.IsTiltEnabled" Value="True"/>
+        <Setter Property="toolkit:TiltEffect.IsTiltEnabled" Value="True"/>
     </Style>
     <Style x:Key="StartPageButtonText" TargetType="TextBlock">
         <Setter Property="TextWrapping" Value="Wrap"/>
diff --git a/CampusAppWP8/CampusAppWP8/Utility/TiltEffect.cs b/CampusAppWP8/CampusAppWP8/Utility/TiltEffect.cs
deleted file mode 100644
index db78de32..00000000
--- a/CampusAppWP8/CampusAppWP8/Utility/TiltEffect.cs
+++ /dev/null
@@ -1,648 +0,0 @@
-/* 
-    Copyright (c) 2010 Microsoft Corporation.  All rights reserved.
-    Use of this sample source code is subject to the terms of the Microsoft license 
-    agreement under which you licensed this sample source code and is provided AS-IS.
-    If you did not accept the terms of the license agreement, you are not authorized 
-    to use this sample source code.  For the terms of the license, please see the 
-    license agreement between you and Microsoft.
-*/
-
-
-using System;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Animation;
-using System.Collections.Generic;
-using System.Windows.Controls.Primitives;
-
-
-#if WINDOWS_PHONE
-using Microsoft.Phone.Controls;
-#endif
-
-namespace CampusAppWP8.Utility
-{
-    /// <summary>
-    /// This code provides attached properties for adding a 'tilt' effect to all controls within a container.
-    /// </summary>
-    public class TiltEffect : DependencyObject
-    {
-
-        #region Constructor and Static Constructor
-        /// <summary>
-        /// This is not a constructable class, but it cannot be static because it derives from DependencyObject.
-        /// </summary>
-        private TiltEffect()
-        {
-        }
-
-        /// <summary>
-        /// Initialize the static properties
-        /// </summary>
-        static TiltEffect()
-        {
-            // The tiltable items list.
-            TiltableItems = new List<Type>() { typeof(ButtonBase), typeof(ListBoxItem), };
-            UseLogarithmicEase = false;
-        }
-
-        #endregion
-
-
-        #region Fields and simple properties
-
-        // These constants are the same as the built-in effects
-        /// <summary>
-        /// Maximum amount of tilt, in radians
-        /// </summary>
-        const double MaxAngle = 0.3;
-
-        /// <summary>
-        /// Maximum amount of depression, in pixels
-        /// </summary>
-        const double MaxDepression = 25;
-
-        /// <summary>
-        /// Delay between releasing an element and the tilt release animation playing
-        /// </summary>
-        static readonly TimeSpan TiltReturnAnimationDelay = TimeSpan.FromMilliseconds(200);
-
-        /// <summary>
-        /// Duration of tilt release animation
-        /// </summary>
-        static readonly TimeSpan TiltReturnAnimationDuration = TimeSpan.FromMilliseconds(100);
-
-        /// <summary>
-        /// The control that is currently being tilted
-        /// </summary>
-        static FrameworkElement currentTiltElement;
-
-        /// <summary>
-        /// The single instance of a storyboard used for all tilts
-        /// </summary>
-        static Storyboard tiltReturnStoryboard;
-
-        /// <summary>
-        /// The single instance of an X rotation used for all tilts
-        /// </summary>
-        static DoubleAnimation tiltReturnXAnimation;
-
-        /// <summary>
-        /// The single instance of a Y rotation used for all tilts
-        /// </summary>
-        static DoubleAnimation tiltReturnYAnimation;
-
-        /// <summary>
-        /// The single instance of a Z depression used for all tilts
-        /// </summary>
-        static DoubleAnimation tiltReturnZAnimation;
-
-        /// <summary>
-        /// The center of the tilt element
-        /// </summary>
-        static Point currentTiltElementCenter;
-
-        /// <summary>
-        /// Whether the animation just completed was for a 'pause' or not
-        /// </summary>
-        static bool wasPauseAnimation = false;
-
-        /// <summary>
-        /// Whether to use a slightly more accurate (but slightly slower) tilt animation easing function
-        /// </summary>
-        public static bool UseLogarithmicEase { get; set; }
-
-        /// <summary>
-        /// Default list of items that are tiltable
-        /// </summary>
-        public static List<Type> TiltableItems { get; private set; }
-
-        #endregion
-
-
-        #region Dependency properties
-
-        /// <summary>
-        /// Whether the tilt effect is enabled on a container (and all its children)
-        /// </summary>
-        public static readonly DependencyProperty IsTiltEnabledProperty = DependencyProperty.RegisterAttached(
-          "IsTiltEnabled",
-          typeof(bool),
-          typeof(TiltEffect),
-          new PropertyMetadata(OnIsTiltEnabledChanged)
-          );
-
-        /// <summary>
-        /// Gets the IsTiltEnabled dependency property from an object
-        /// </summary>
-        /// <param name="source">The object to get the property from</param>
-        /// <returns>The property's value</returns>
-        public static bool GetIsTiltEnabled(DependencyObject source) { return (bool)source.GetValue(IsTiltEnabledProperty); }
-
-        /// <summary>
-        /// Sets the IsTiltEnabled dependency property on an object
-        /// </summary>
-        /// <param name="source">The object to set the property on</param>
-        /// <param name="value">The value to set</param>
-        public static void SetIsTiltEnabled(DependencyObject source, bool value) { source.SetValue(IsTiltEnabledProperty, value); }
-
-        /// <summary>
-        /// Suppresses the tilt effect on a single control that would otherwise be tilted
-        /// </summary>
-        public static readonly DependencyProperty SuppressTiltProperty = DependencyProperty.RegisterAttached(
-          "SuppressTilt",
-          typeof(bool),
-          typeof(TiltEffect),
-          null
-          );
-
-        /// <summary>
-        /// Gets the SuppressTilt dependency property from an object
-        /// </summary>
-        /// <param name="source">The object to get the property from</param>
-        /// <returns>The property's value</returns>
-        public static bool GetSuppressTilt(DependencyObject source) { return (bool)source.GetValue(SuppressTiltProperty); }
-
-        /// <summary>
-        /// Sets the SuppressTilt dependency property from an object
-        /// </summary>
-        /// <param name="source">The object to get the property from</param>
-        /// <returns>The property's value</returns>
-        public static void SetSuppressTilt(DependencyObject source, bool value) { source.SetValue(SuppressTiltProperty, value); }
-
-
-        /// <summary>
-        /// Property change handler for the IsTiltEnabled dependency property
-        /// </summary>
-        /// <param name="target">The element that the property is atteched to</param>
-        /// <param name="args">Event args</param>
-        /// <remarks>
-        /// Adds or removes event handlers from the element that has been (un)registered for tilting
-        /// </remarks>
-        static void OnIsTiltEnabledChanged(DependencyObject target, DependencyPropertyChangedEventArgs args)
-        {
-            if (target is FrameworkElement)
-            {
-                // Add / remove the event handler if necessary
-                if ((bool)args.NewValue == true)
-                {
-                    (target as FrameworkElement).ManipulationStarted += TiltEffect_ManipulationStarted;
-                }
-                else
-                {
-                    (target as FrameworkElement).ManipulationStarted -= TiltEffect_ManipulationStarted;
-                }
-            }
-        }
-
-        #endregion
-
-
-        #region Top-level manipulation event handlers
-
-        /// <summary>
-        /// Event handler for ManipulationStarted
-        /// </summary>
-        /// <param name="sender">sender of the event - this will be the tilt container (eg, entire page)</param>
-        /// <param name="e">event args</param>
-        static void TiltEffect_ManipulationStarted(object sender, ManipulationStartedEventArgs e)
-        {
-           
-            TryStartTiltEffect(sender as FrameworkElement, e);
-        }
-
-        /// <summary>
-        /// Event handler for ManipulationDelta
-        /// </summary>
-        /// <param name="sender">sender of the event - this will be the tilting object (eg a button)</param>
-        /// <param name="e">event args</param>
-        static void TiltEffect_ManipulationDelta(object sender, ManipulationDeltaEventArgs e)
-        {
-            
-            ContinueTiltEffect(sender as FrameworkElement, e);
-        }
-
-        /// <summary>
-        /// Event handler for ManipulationCompleted
-        /// </summary>
-        /// <param name="sender">sender of the event - this will be the tilting object (eg a button)</param>
-        /// <param name="e">event args</param>
-        static void TiltEffect_ManipulationCompleted(object sender, ManipulationCompletedEventArgs e)
-        {
-            
-            EndTiltEffect(currentTiltElement);
-        }
-
-        #endregion
-
-
-        #region Core tilt logic
-
-        /// <summary>
-        /// Checks if the manipulation should cause a tilt, and if so starts the tilt effect
-        /// </summary>
-        /// <param name="source">The source of the manipulation (the tilt container, eg entire page)</param>
-        /// <param name="e">The args from the ManipulationStarted event</param>
-        static void TryStartTiltEffect(FrameworkElement source, ManipulationStartedEventArgs e)
-        {
-            foreach (FrameworkElement ancestor in (e.OriginalSource as FrameworkElement).GetVisualAncestors())
-            {
-                foreach (Type t in TiltableItems)
-                {
-                    if (t.IsAssignableFrom(ancestor.GetType()))
-                    {
-                        if ((bool)ancestor.GetValue(SuppressTiltProperty) != true)
-                        {
-                            // Use first child of the control, so that you can add transforms and not
-                            // impact any transforms on the control itself
-                            FrameworkElement element = VisualTreeHelper.GetChild(ancestor, 0) as FrameworkElement;
-                            FrameworkElement container = e.ManipulationContainer as FrameworkElement;
-
-                            if (element == null || container == null)
-                                return;
-
-                            // Touch point relative to the element being tilted
-                            Point tiltTouchPoint = container.TransformToVisual(element).Transform(e.ManipulationOrigin);
-
-                            // Center of the element being tilted
-                            Point elementCenter = new Point(element.ActualWidth / 2, element.ActualHeight / 2);
-
-                            // Camera adjustment
-                            Point centerToCenterDelta = GetCenterToCenterDelta(element, source);
-
-                            BeginTiltEffect(element, tiltTouchPoint, elementCenter, centerToCenterDelta);
-                            return;
-                        }
-                    }
-                }
-            }
-        }
-
-        /// <summary>
-        /// Computes the delta between the centre of an element and its container
-        /// </summary>
-        /// <param name="element">The element to compare</param>
-        /// <param name="container">The element to compare against</param>
-        /// <returns>A point that represents the delta between the two centers</returns>
-        static Point GetCenterToCenterDelta(FrameworkElement element, FrameworkElement container)
-        {
-            Point elementCenter = new Point(element.ActualWidth / 2, element.ActualHeight / 2);
-            Point containerCenter;
-
-#if WINDOWS_PHONE
-
-            // Need to special-case the frame to handle different orientations
-            if (container is PhoneApplicationFrame)
-            {
-                PhoneApplicationFrame frame = container as PhoneApplicationFrame;
-
-                // Switch width and height in landscape mode
-                if ((frame.Orientation & PageOrientation.Landscape) == PageOrientation.Landscape)
-                {
-                   
-                    containerCenter = new Point(container.ActualHeight / 2, container.ActualWidth / 2);
-                }
-                else
-                    containerCenter = new Point(container.ActualWidth / 2, container.ActualHeight / 2);
-            }
-            else
-                containerCenter = new Point(container.ActualWidth / 2, container.ActualHeight / 2);
-#else
-
-            containerCenter = new Point(container.ActualWidth / 2, container.ActualHeight / 2);
-
-#endif
-
-            Point transformedElementCenter = element.TransformToVisual(container).Transform(elementCenter);
-            Point result = new Point(containerCenter.X - transformedElementCenter.X, containerCenter.Y - transformedElementCenter.Y);
-           
-            return result;
-        }
-
-        /// <summary>
-        /// Begins the tilt effect by preparing the control and doing the initial animation
-        /// </summary>
-        /// <param name="element">The element to tilt </param>
-        /// <param name="touchPoint">The touch point, in element coordinates</param>
-        /// <param name="centerPoint">The center point of the element in element coordinates</param>
-        /// <param name="centerDelta">The delta between the <paramref name="element"/>'s center and 
-        /// the container's center</param>
-        static void BeginTiltEffect(FrameworkElement element, Point touchPoint, Point centerPoint, Point centerDelta)
-        {
-           
-
-            if (tiltReturnStoryboard != null)
-                StopTiltReturnStoryboardAndCleanup();
-
-            if (PrepareControlForTilt(element, centerDelta) == false)
-                return;
-
-            currentTiltElement = element;
-            currentTiltElementCenter = centerPoint;
-            PrepareTiltReturnStoryboard(element);
-
-            ApplyTiltEffect(currentTiltElement, touchPoint, currentTiltElementCenter);
-        }
-
-        /// <summary>
-        /// Prepares a control to be tilted by setting up a plane projection and some event handlers
-        /// </summary>
-        /// <param name="element">The control that is to be tilted</param>
-        /// <param name="centerDelta">Delta between the element's center and the tilt container's</param>
-        /// <returns>true if successful; false otherwise</returns>
-        /// <remarks>
-        /// This method is conservative; it will fail any attempt to tilt a control that already
-        /// has a projection on it
-        /// </remarks>
-        static bool PrepareControlForTilt(FrameworkElement element, Point centerDelta)
-        {
-            // Prevents interference with any existing transforms
-            if (element.Projection != null || (element.RenderTransform != null && element.RenderTransform.GetType() != typeof(MatrixTransform)))
-                return false;
-
-            TranslateTransform transform = new TranslateTransform();
-            transform.X = centerDelta.X;
-            transform.Y = centerDelta.Y;
-            element.RenderTransform = transform;
-
-            PlaneProjection projection = new PlaneProjection();
-            projection.GlobalOffsetX = -1 * centerDelta.X;
-            projection.GlobalOffsetY = -1 * centerDelta.Y;
-            element.Projection = projection;
-
-            element.ManipulationDelta += TiltEffect_ManipulationDelta;
-            element.ManipulationCompleted += TiltEffect_ManipulationCompleted;
-
-            return true;
-        }
-
-        /// <summary>
-        /// Removes modifications made by PrepareControlForTilt
-        /// </summary>
-        /// <param name="element">THe control to be un-prepared</param>
-        /// <remarks>
-        /// This method is basic; it does not do anything to detect if the control being un-prepared
-        /// was previously prepared
-        /// </remarks>
-        static void RevertPrepareControlForTilt(FrameworkElement element)
-        {
-            element.ManipulationDelta -= TiltEffect_ManipulationDelta;
-            element.ManipulationCompleted -= TiltEffect_ManipulationCompleted;
-            element.Projection = null;
-            element.RenderTransform = null;
-        }
-
-        /// <summary>
-        /// Creates the tilt return storyboard (if not already created) and targets it to the projection
-        /// </summary>
-        /// <param name="projection">the projection that should be the target of the animation</param>
-        static void PrepareTiltReturnStoryboard(FrameworkElement element)
-        {
-
-            if (tiltReturnStoryboard == null)
-            {
-                tiltReturnStoryboard = new Storyboard();
-                tiltReturnStoryboard.Completed += TiltReturnStoryboard_Completed;
-
-                tiltReturnXAnimation = new DoubleAnimation();
-                Storyboard.SetTargetProperty(tiltReturnXAnimation, new PropertyPath(PlaneProjection.RotationXProperty));
-                tiltReturnXAnimation.BeginTime = TiltReturnAnimationDelay;
-                tiltReturnXAnimation.To = 0;
-                tiltReturnXAnimation.Duration = TiltReturnAnimationDuration;
-
-                tiltReturnYAnimation = new DoubleAnimation();
-                Storyboard.SetTargetProperty(tiltReturnYAnimation, new PropertyPath(PlaneProjection.RotationYProperty));
-                tiltReturnYAnimation.BeginTime = TiltReturnAnimationDelay;
-                tiltReturnYAnimation.To = 0;
-                tiltReturnYAnimation.Duration = TiltReturnAnimationDuration;
-
-                tiltReturnZAnimation = new DoubleAnimation();
-                Storyboard.SetTargetProperty(tiltReturnZAnimation, new PropertyPath(PlaneProjection.GlobalOffsetZProperty));
-                tiltReturnZAnimation.BeginTime = TiltReturnAnimationDelay;
-                tiltReturnZAnimation.To = 0;
-                tiltReturnZAnimation.Duration = TiltReturnAnimationDuration;
-
-                if (UseLogarithmicEase)
-                {
-                    tiltReturnXAnimation.EasingFunction = new LogarithmicEase();
-                    tiltReturnYAnimation.EasingFunction = new LogarithmicEase();
-                    tiltReturnZAnimation.EasingFunction = new LogarithmicEase();
-                }
-
-                tiltReturnStoryboard.Children.Add(tiltReturnXAnimation);
-                tiltReturnStoryboard.Children.Add(tiltReturnYAnimation);
-                tiltReturnStoryboard.Children.Add(tiltReturnZAnimation);
-            }
-
-            Storyboard.SetTarget(tiltReturnXAnimation, element.Projection);
-            Storyboard.SetTarget(tiltReturnYAnimation, element.Projection);
-            Storyboard.SetTarget(tiltReturnZAnimation, element.Projection);
-        }
-
-
-        /// <summary>
-        /// Continues a tilt effect that is currently applied to an element, presumably because
-        /// the user moved their finger
-        /// </summary>
-        /// <param name="element">The element being tilted</param>
-        /// <param name="e">The manipulation event args</param>
-        static void ContinueTiltEffect(FrameworkElement element, ManipulationDeltaEventArgs e)
-        {
-            FrameworkElement container = e.ManipulationContainer as FrameworkElement;
-            if (container == null || element == null)
-                return;
-
-            Point tiltTouchPoint = container.TransformToVisual(element).Transform(e.ManipulationOrigin);
-
-            // If touch moved outside bounds of element, then pause the tilt (but don't cancel it)
-            if (new Rect(0, 0, currentTiltElement.ActualWidth, currentTiltElement.ActualHeight).Contains(tiltTouchPoint) != true)
-            {
-               
-                PauseTiltEffect();
-                return;
-            }
-
-            // Apply the updated tilt effect
-            ApplyTiltEffect(currentTiltElement, e.ManipulationOrigin, currentTiltElementCenter);
-        }
-
-        /// <summary>
-        /// Ends the tilt effect by playing the animation  
-        /// </summary>
-        /// <param name="element">The element being tilted</param>
-        static void EndTiltEffect(FrameworkElement element)
-        {
-            if (element != null)
-            {
-                element.ManipulationCompleted -= TiltEffect_ManipulationCompleted;
-                element.ManipulationDelta -= TiltEffect_ManipulationDelta;
-            }
-
-            if (tiltReturnStoryboard != null)
-            {
-                wasPauseAnimation = false;
-                if (tiltReturnStoryboard.GetCurrentState() != ClockState.Active)
-                    tiltReturnStoryboard.Begin();
-            }
-            else
-                StopTiltReturnStoryboardAndCleanup();
-        }
-
-        /// <summary>
-        /// Handler for the storyboard complete event
-        /// </summary>
-        /// <param name="sender">sender of the event</param>
-        /// <param name="e">event args</param>
-        static void TiltReturnStoryboard_Completed(object sender, EventArgs e)
-        {
-            if (wasPauseAnimation)
-                ResetTiltEffect(currentTiltElement);
-            else
-                StopTiltReturnStoryboardAndCleanup();
-        }
-
-        /// <summary>
-        /// Resets the tilt effect on the control, making it appear 'normal' again 
-        /// </summary>
-        /// <param name="element">The element to reset the tilt on</param>
-        /// <remarks>
-        /// This method doesn't turn off the tilt effect or cancel any current
-        /// manipulation; it just temporarily cancels the effect
-        /// </remarks>
-        static void ResetTiltEffect(FrameworkElement element)
-        {
-            PlaneProjection projection = element.Projection as PlaneProjection;
-            projection.RotationY = 0;
-            projection.RotationX = 0;
-            projection.GlobalOffsetZ = 0;
-        }
-
-        /// <summary>
-        /// Stops the tilt effect and release resources applied to the currently-tilted control
-        /// </summary>
-        static void StopTiltReturnStoryboardAndCleanup()
-        {
-            if (tiltReturnStoryboard != null)
-                tiltReturnStoryboard.Stop();
-
-            RevertPrepareControlForTilt(currentTiltElement);
-        }
-
-        /// <summary>
-        /// Pauses the tilt effect so that the control returns to the 'at rest' position, but doesn't
-        /// stop the tilt effect (handlers are still attached, etc.)
-        /// </summary>
-        static void PauseTiltEffect()
-        {
-            if ((tiltReturnStoryboard != null) && !wasPauseAnimation)
-            {
-                tiltReturnStoryboard.Stop();
-                wasPauseAnimation = true;
-                tiltReturnStoryboard.Begin();
-            }
-        }
-
-        /// <summary>
-        /// Resets the storyboard to not running
-        /// </summary>
-        private static void ResetTiltReturnStoryboard()
-        {
-            tiltReturnStoryboard.Stop();
-            wasPauseAnimation = false;
-        }
-
-        /// <summary>
-        /// Applies the tilt effect to the control
-        /// </summary>
-        /// <param name="element">the control to tilt</param>
-        /// <param name="touchPoint">The touch point, in the container's coordinates</param>
-        /// <param name="centerPoint">The center point of the container</param>
-        static void ApplyTiltEffect(FrameworkElement element, Point touchPoint, Point centerPoint)
-        {
-            // Stop any active animation
-            ResetTiltReturnStoryboard();
-
-            // Get relative point of the touch in percentage of container size
-            Point normalizedPoint = new Point(
-                Math.Min(Math.Max(touchPoint.X / (centerPoint.X * 2), 0), 1),
-                Math.Min(Math.Max(touchPoint.Y / (centerPoint.Y * 2), 0), 1));
-
-            // Shell values
-            double xMagnitude = Math.Abs(normalizedPoint.X - 0.5);
-            double yMagnitude = Math.Abs(normalizedPoint.Y - 0.5);
-            double xDirection = -Math.Sign(normalizedPoint.X - 0.5);
-            double yDirection = Math.Sign(normalizedPoint.Y - 0.5);
-            double angleMagnitude = xMagnitude + yMagnitude;
-            double xAngleContribution = xMagnitude + yMagnitude > 0 ? xMagnitude / (xMagnitude + yMagnitude) : 0;
-
-            double angle = angleMagnitude * MaxAngle * 180 / Math.PI;
-            double depression = (1 - angleMagnitude) * MaxDepression;
-
-            // RotationX and RotationY are the angles of rotations about the x- or y-*axis*;
-            // to achieve a rotation in the x- or y-*direction*, we need to swap the two.
-            // That is, a rotation to the left about the y-axis is a rotation to the left in the x-direction,
-            // and a rotation up about the x-axis is a rotation up in the y-direction.
-            PlaneProjection projection = element.Projection as PlaneProjection;
-            projection.RotationY = angle * xAngleContribution * xDirection;
-            projection.RotationX = angle * (1 - xAngleContribution) * yDirection;
-            projection.GlobalOffsetZ = -depression;
-        }
-
-        #endregion
-
-
-        #region Custom easing function
-
-        /// <summary>
-        /// Provides an easing function for the tilt return
-        /// </summary>
-        private class LogarithmicEase : EasingFunctionBase
-        {
-            /// <summary>
-            /// Computes the easing function
-            /// </summary>
-            /// <param name="normalizedTime">The time</param>
-            /// <returns>The eased value</returns>
-            protected override double EaseInCore(double normalizedTime)
-            {
-                return Math.Log(normalizedTime + 1) / 0.693147181; // ln(t + 1) / ln(2)
-            }
-        }
-
-        #endregion
-    }
-
-    /// <summary>
-    /// Couple of simple helpers for walking the visual tree
-    /// </summary>
-    static class TreeHelpers
-    {
-        /// <summary>
-        /// Gets the ancestors of the element, up to the root
-        /// </summary>
-        /// <param name="node">The element to start from</param>
-        /// <returns>An enumerator of the ancestors</returns>
-        public static IEnumerable<FrameworkElement> GetVisualAncestors(this FrameworkElement node)
-        {
-            FrameworkElement parent = node.GetVisualParent();
-            while (parent != null)
-            {
-                yield return parent;
-                parent = parent.GetVisualParent();
-            }
-        }
-
-        /// <summary>
-        /// Gets the visual parent of the element
-        /// </summary>
-        /// <param name="node">The element to check</param>
-        /// <returns>The visual parent</returns>
-        public static FrameworkElement GetVisualParent(this FrameworkElement node)
-        {
-            return VisualTreeHelper.GetParent(node) as FrameworkElement;
-        }
-    }
-}
-