/// <summary>
/// Gets the expected duration of a flick as measured in seconds.
/// A flick starts on <see cref="Windows.UI.Xaml.UIElement.ManipulationInertiaStarting"/>
/// event and ends on <see cref="Windows.UI.Xaml.UIElement.ManipulationCompleted"/> event.
/// </summary>
/// <remarks>
/// Note that the duration is estimated and may vary by a few percent based on testing.
/// </remarks>
/// <param name="e">The event argument from the <see cref="Windows.UI.Xaml.UIElement.ManipulationInertiaStarting"/> event.</param>
/// <returns>The expected duration of the flick as measured in seconds.</returns>
public static double GetExpectedDisplacementDuration(this ManipulationInertiaStartingRoutedEventArgs e)
{
var d = e.TranslationBehavior.DesiredDisplacement;
double a;
var vx = e.Velocities.Linear.X;
var vy = e.Velocities.Linear.Y;
var v = Math.Sqrt(vx * vx + vy * vy);
if (double.IsNaN(d))
{
a = e.TranslationBehavior.DesiredDeceleration;
if (double.IsNaN(a))
{
a = DefaultDeceleration;
}
}
else
{
a = v * v / (2 * d);
}
return((v / a) * 0.001);
}
/// <summary>
/// Gets the Y component of the expected displacement vector at the end of the flick.
/// A flick starts on
/// <see cref="Windows.UI.Xaml.UIElement.ManipulationInertiaStarting"/> event and ends on
/// <see cref="Windows.UI.Xaml.UIElement.ManipulationCompleted"/> event.
/// The displacement is the vector from e.Cumulative.Translation at the beginning of the flick
/// to the e.Cumulative.Translation at the end of the flick.
/// </summary>
/// <param name="e">The event argument from the
/// <see cref="Windows.UI.Xaml.UIElement.ManipulationInertiaStarting"/> event.
/// </param>
/// <returns>The Y component of the displacement of the flick.</returns>
public static double GetExpectedDisplacementY(this ManipulationInertiaStartingRoutedEventArgs e)
{
var vy = e.Velocities.Linear.Y;
if (vy == 0)
{
return(0);
}
var vx = e.Velocities.Linear.X;
var v = Math.Sqrt(vx * vx + vy * vy);
var d = e.TranslationBehavior.DesiredDisplacement;
if (double.IsNaN(d))
{
var a = e.TranslationBehavior.DesiredDeceleration;
if (double.IsNaN(a))
{
a = DefaultDeceleration;
}
d = v * v / (2 * a);
}
var dy = d * vy / v;
return(dy);
}
/// <summary>
/// Called before the ManipulationInertiaStarting event occurs.
/// </summary>
/// <param name="e">Event data for the event.</param>
/// <remarks>
/// This is used for touch scrolling.
/// </remarks>
protected override void OnManipulationInertiaStarting(ManipulationInertiaStartingRoutedEventArgs e)
{
this.scroller += e.Delta.Translation.Y;
ProcessScroller();
e.Handled = true;
base.OnManipulationInertiaStarting(e);
}
void OnEllipseManipulationInertiaStarting(object sender,
ManipulationInertiaStartingRoutedEventArgs args)
{
double maxVelocity = Math.Max(Math.Abs(args.Velocities.Linear.X),
Math.Abs(args.Velocities.Linear.Y));
args.TranslationBehavior.DesiredDeceleration = maxVelocity / (1000 * slider.Value);
}
/// <summary>
/// [DOWN-4] On Manipulation Inertia Starting
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
/// <remarks>
/// Auto acceleration Starging
/// </remarks>
private void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
var po = _(e, this, "OnManipulationInertiaStarting");
//Debug.WriteLine(___(po));
IsOnManipulationInertiaStarting = true;
}
private void InertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
_inertiaStart = DateTimeOffset.UtcNow.Ticks;
//e.TranslationBehavior.DesiredDisplacement = 5;
//e.TranslationBehavior.DesiredDeceleration = .00001;
Log(@$ "[INERTIA] Inertia starting: {F(default, e.Delta, e.Cumulative, e.Velocities)}
tr: ↘={e.TranslationBehavior.DesiredDeceleration} | ⌖={e.TranslationBehavior.DesiredDisplacement}
private void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
if (!_isImageLoaded)
{
return;
}
ProcessManipulationDelta(e.Cumulative, false);
e.Handled = true;
}
private void Image_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
var element = e.OriginalSource as FrameworkElement;
if (element == null)
{
return;
}
//Ball inertial speed based on the actual formula (m/s)
e.TranslationBehavior.DesiredDeceleration = 20.0 * 96.0 / (1000.0 * 1000.0);
}
void ManipulableScroll_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
if (_isvertical)
{
e.TranslationBehavior.DesiredDeceleration = 20.0 * 96.0 / (1000.0 * 1000.0);
}
else
{
_forcemanipulation2end = true;
}
}
private void HandleManipulationInertiaStarting(Object sender, ManipulationInertiaStartingRoutedEventArgs args)
{
// Check to see if this kind of device is being ignored
if (!IsValidDevice(args.PointerDeviceType))
{
return;
}
// Changes here can include adjusting the deceleration value or setting a target end value
// args.RotationBehavior.DesiredDeceleration = .000001;
System.Diagnostics.Debug.WriteLine("ManipulationInertia");
}
void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
if (_dragStarted)
{
Point velocity = new Point(e.Velocities.Linear.X, e.Velocities.Linear.Y);
double d = RaiseDragInertiaStarted(e, velocity, 0.00096);
if (!double.IsNaN(d))
{
e.TranslationBehavior.DesiredDeceleration = d;
}
}
}
void Panel_ManipulationInertiaStarting_1(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
_isinertia = true;
if (_manipulationenable)
{
if (_touches > 1)
{
e.TranslationBehavior.DesiredDeceleration = 300.0 * 96.0 / (1000.0 * 1000.0);
e.ExpansionBehavior.DesiredDeceleration = 10.0 * 96.0 / (1000.0 * 1000.0);
e.RotationBehavior.DesiredDeceleration = 300.0 * 96.0 / (1000.0 * 1000.0);
}
}
}
private void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
DebugMethodName(2);
DebugMessage("Element=[" + _xfElement + "]");
PointerDeviceTypeDebugMessage(e.PointerDeviceType);
ManipulationDeltaDebugMessage(e.Delta, "Delta");
ManipulationDeltaDebugMessage(e.Cumulative, "Cumul");
VelocitiesDebugString(e.Velocities);
ContainerDebugMessage(e.Container);
DebugMessage("TranslationBehavioir: disp=[" + e.TranslationBehavior.DesiredDisplacement + "] decl=[" + e.TranslationBehavior.DesiredDeceleration + "]");
DebugMessage("RotationBehavior: rot=[" + e.RotationBehavior.DesiredRotation + "] decl=[" + e.RotationBehavior.DesiredDeceleration + "]");
DebugMessage("ExpansionBehavior: exp=[" + e.ExpansionBehavior.DesiredExpansion + "] decl=[" + e.ExpansionBehavior.DesiredDeceleration + "]");
HandledDebugString(e.Handled);
}
private async void CatPlaceHolder_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
if (e.Velocities.Linear.X > 0)
{
CatLove.Visibility = Windows.UI.Xaml.Visibility.Visible;
Vote(10);
}
else if (e.Velocities.Linear.X < 0)
{
CatHater.Visibility = Windows.UI.Xaml.Visibility.Visible;
Vote(1);
}
await NextCat();
}
/// <summary>
/// Sets the desired displacement along the X axis.
/// </summary>
/// <param name="e">The <see cref="ManipulationInertiaStartingRoutedEventArgs"/> instance containing the event data.</param>
/// <param name="desiredDisplacementX">The desired displacement along the X axis.</param>
public static void SetDesiredDisplacementX(this ManipulationInertiaStartingRoutedEventArgs e, double desiredDisplacementX)
{
var vx = e.Velocities.Linear.X;
var vy = e.Velocities.Linear.Y;
if (vx == 0)
{
e.TranslationBehavior.DesiredDisplacement = desiredDisplacementX;
return;
//throw new InvalidOperationException("Can't adjust inertia angle - desired displacement X is unsupported.");
}
var v = Math.Sqrt(vx * vx + vy * vy);
e.TranslationBehavior.DesiredDisplacement = desiredDisplacementX * v / vx;
}
private void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
double velocity = e.Velocities.Linear.X;
if (Math.Abs(velocity) > 2.0)
{
double offset = Math.Abs(_offset);
if (Math.Sign(velocity) > 0)
{
e.TranslationBehavior.DesiredDisplacement = _slotWidth * this.MaxItems - offset;
}
else
{
e.TranslationBehavior.DesiredDisplacement = _slotWidth * (this.MaxItems - 1) + offset;
}
}
}
private void VideoImage_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
// Decrease the velocity of the Rectangle's movement by
// 10 inches per second every second.
// (10 inches * 96 pixels per inch / 1000ms^2)
e.TranslationBehavior.DesiredDeceleration = 10.0 * 96.0 / (1000.0 * 1000.0);
// Decrease the velocity of the Rectangle's resizing by
// 0.1 inches per second every second.
// (0.1 inches * 96 pixels per inch / (1000ms^2)
e.ExpansionBehavior.DesiredDeceleration = 0.1 * 96 / (1000.0 * 1000.0);
// Decrease the velocity of the Rectangle's rotation rate by
// 2 rotations per second every second.
// (2 * 360 degrees / (1000ms^2)
e.RotationBehavior.DesiredDeceleration = 720 / (1000.0 * 1000.0);
e.Handled = true;
}
protected virtual void OnManipulationInertiaStarting(ManipulationInertiaStartingRoutedEventArgs e)
{
}
protected override void OnManipulationInertiaStarting(ManipulationInertiaStartingRoutedEventArgs e)
{
base.OnManipulationInertiaStarting(e);
}
protected override void OnManipulationInertiaStarting(ManipulationInertiaStartingRoutedEventArgs e)
{
e.TranslationBehavior.DesiredDeceleration = FlickRotateDeceleration;
e.Handled = true;
}
// When a manipulation that's a result of inertia begins, change the color of the
// the object to reflect that inertia has taken over
void ManipulateMe_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
manipulateMe.Background = new SolidColorBrush(Windows.UI.Colors.RoyalBlue);
}
private void Slider_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
ShowToolTip();
ManipulationInertiaStarting?.Invoke(this, e);
}
private void ManipulateMe_ManipulationInertiaStarting(
object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
e.Handled = true;
}
private void OnManipInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
=> Write($"[Inertia] {F(new Point(-1, -1), e.Delta, e.Cumulative)}");
private void theCanvas_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
//isInInertion = true;
e.RotationBehavior.DesiredDeceleration = 0;
e.RotationBehavior.DesiredRotation = int.MaxValue;
}
private void ScrollContentPresenter_OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
var tr = _presenter.RenderTransform as TranslateTransform;
// 閾値に達していない状態で慣性スクロールが始まった場合引っ張って更新の計算をスキップする
_inertiaIgnoring = tr.Y < Threshold && !_isRefreshing;
}
private void Image_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
e.TranslationBehavior.DesiredDeceleration = 1;
}
/// <summary> /// Gets a reference to the object that raised the event. /// This is often a template part of a control rather than an element that was declared in your app UI. /// </summary> /// <param name="e">The requested <see cref="ManipulationInertiaStartingRoutedEventArgs"/>.</param> /// <returns>The object that raised the event.</returns> public static object OriginalSource(this ManipulationInertiaStartingRoutedEventArgs e) => Resolver.OriginalSource(e);
private static void OnManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
e.TranslationBehavior.DesiredDeceleration = 25 * 96.0 / (1000.0 * 1000.0);
}
void rectangle_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingRoutedEventArgs e)
{
lblMsg.Text += "ManipulationInertiaStarting";
lblMsg.Text += Environment.NewLine;
}