/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationCompletedEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
Point origin,
ManipulationDelta total,
ManipulationVelocities velocities,
bool isInertial)
: base(manipulationDevice, timestamp)
{
if (total == null)
{
throw new ArgumentNullException("total");
}
if (velocities == null)
{
throw new ArgumentNullException("velocities");
}
RoutedEvent = Manipulation.ManipulationCompletedEvent;
ManipulationContainer = manipulationContainer;
ManipulationOrigin = origin;
TotalManipulation = total;
FinalVelocities = velocities;
IsInertial = isInertial;
}
/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationDeltaEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
Point origin,
ManipulationDelta delta,
ManipulationDelta cumulative,
ManipulationVelocities velocities,
bool isInertial)
: base(manipulationDevice, timestamp)
{
if (delta == null)
{
throw new ArgumentNullException("delta");
}
if (cumulative == null)
{
throw new ArgumentNullException("cumulative");
}
if (velocities == null)
{
throw new ArgumentNullException("velocities");
}
RoutedEvent = Manipulation.ManipulationDeltaEvent;
ManipulationContainer = manipulationContainer;
ManipulationOrigin = origin;
DeltaManipulation = delta;
CumulativeManipulation = cumulative;
Velocities = velocities;
IsInertial = isInertial;
}
/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationDeltaEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
Point origin,
ManipulationDelta delta,
ManipulationDelta cumulative,
ManipulationVelocities velocities,
bool isInertial)
: base(manipulationDevice, timestamp)
{
if (delta == null)
{
throw new ArgumentNullException("delta");
}
if (cumulative == null)
{
throw new ArgumentNullException("cumulative");
}
if (velocities == null)
{
throw new ArgumentNullException("velocities");
}
RoutedEvent = Manipulation.ManipulationDeltaEvent;
ManipulationContainer = manipulationContainer;
ManipulationOrigin = origin;
DeltaManipulation = delta;
CumulativeManipulation = cumulative;
Velocities = velocities;
IsInertial = isInertial;
}
/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationCompletedEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
Point origin,
ManipulationDelta total,
ManipulationVelocities velocities,
bool isInertial)
: base(manipulationDevice, timestamp)
{
if (total == null)
{
throw new ArgumentNullException("total");
}
if (velocities == null)
{
throw new ArgumentNullException("velocities");
}
RoutedEvent = Manipulation.ManipulationCompletedEvent;
ManipulationContainer = manipulationContainer;
ManipulationOrigin = origin;
TotalManipulation = total;
FinalVelocities = velocities;
IsInertial = isInertial;
}
/// <summary>
/// Allows a handler to specify that the manipulation has gone beyond certain boundaries.
/// By default, this value will then be used to provide panning feedback on the window, but
/// it can be change by handling the ManipulationBoundaryFeedback event.
/// </summary>
public void ReportBoundaryFeedback(ManipulationDelta unusedManipulation)
{
if (unusedManipulation == null)
{
throw new ArgumentNullException("unusedManipulation");
}
UnusedManipulation = unusedManipulation;
}
/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationBoundaryFeedbackEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
ManipulationDelta boundaryFeedback)
: base(manipulationDevice, timestamp)
{
RoutedEvent = Manipulation.ManipulationBoundaryFeedbackEvent;
ManipulationContainer = manipulationContainer;
BoundaryFeedback = boundaryFeedback;
}
/// <summary>
/// Instantiates a new instance of this class.
/// </summary>
internal ManipulationBoundaryFeedbackEventArgs(
ManipulationDevice manipulationDevice,
int timestamp,
IInputElement manipulationContainer,
ManipulationDelta boundaryFeedback)
: base(manipulationDevice, timestamp)
{
RoutedEvent = Manipulation.ManipulationBoundaryFeedbackEvent;
ManipulationContainer = manipulationContainer;
BoundaryFeedback = boundaryFeedback;
}
private static ManipulationDelta ConvertDelta(ManipulationDelta2D delta, ManipulationDelta add)
{
if (add != null)
{
return(new ManipulationDelta(
new Vector(delta.TranslationX + add.Translation.X, delta.TranslationY + add.Translation.Y),
AngleUtil.RadiansToDegrees(delta.Rotation) + add.Rotation,
new Vector(delta.ScaleX * add.Scale.X, delta.ScaleY * add.Scale.Y),
new Vector(delta.ExpansionX + add.Expansion.X, delta.ExpansionY + add.Expansion.Y)));
}
else
{
return(new ManipulationDelta(
new Vector(delta.TranslationX, delta.TranslationY),
AngleUtil.RadiansToDegrees(delta.Rotation),
new Vector(delta.ScaleX, delta.ScaleY),
new Vector(delta.ExpansionX, delta.ExpansionY)));
}
}
internal void RaiseBoundaryFeedback(ManipulationDelta unusedManipulation, bool requestedComplete)
{
bool hasUnusedManipulation = (unusedManipulation != null);
if ((!hasUnusedManipulation || requestedComplete) && HasPendingBoundaryFeedback)
{
// Create a "zero" message to end currently pending feedback
unusedManipulation = new ManipulationDelta(new Vector(), 0.0, new Vector(1.0, 1.0), new Vector());
HasPendingBoundaryFeedback = false;
}
else if (hasUnusedManipulation)
{
HasPendingBoundaryFeedback = true;
}
if (unusedManipulation != null)
{
PushEvent(new ManipulationBoundaryFeedbackEventArgs(_manipulationDevice, LastTimestamp, _currentContainer, unusedManipulation));
}
}
/// <summary>
/// Allows a handler to specify that the manipulation has gone beyond certain boundaries.
/// By default, this value will then be used to provide panning feedback on the window, but
/// it can be change by handling the ManipulationBoundaryFeedback event.
/// </summary>
public void ReportBoundaryFeedback(ManipulationDelta unusedManipulation)
{
if (unusedManipulation == null)
{
throw new ArgumentNullException("unusedManipulation");
}
UnusedManipulation = unusedManipulation;
}
internal void RaiseBoundaryFeedback(ManipulationDelta unusedManipulation, bool requestedComplete)
{
bool hasUnusedManipulation = (unusedManipulation != null);
if ((!hasUnusedManipulation || requestedComplete) && HasPendingBoundaryFeedback)
{
// Create a "zero" message to end currently pending feedback
unusedManipulation = new ManipulationDelta(new Vector(), 0.0, new Vector(1.0, 1.0), new Vector());
HasPendingBoundaryFeedback = false;
}
else if (hasUnusedManipulation)
{
HasPendingBoundaryFeedback = true;
}
if (unusedManipulation != null)
{
PushEvent(new ManipulationBoundaryFeedbackEventArgs(_manipulationDevice, LastTimestamp, _currentContainer, unusedManipulation));
}
}
private static ManipulationDelta ConvertDelta(ManipulationDelta2D delta, ManipulationDelta add)
{
if (add != null)
{
return new ManipulationDelta(
new Vector(delta.TranslationX + add.Translation.X, delta.TranslationY + add.Translation.Y),
AngleUtil.RadiansToDegrees(delta.Rotation) + add.Rotation,
new Vector(delta.ScaleX * add.Scale.X, delta.ScaleY * add.Scale.Y),
new Vector(delta.ExpansionX + add.Expansion.X, delta.ExpansionY + add.Expansion.Y));
}
else
{
return new ManipulationDelta(
new Vector(delta.TranslationX, delta.TranslationY),
AngleUtil.RadiansToDegrees(delta.Rotation),
new Vector(delta.ScaleX, delta.ScaleY),
new Vector(delta.ExpansionX, delta.ExpansionY));
}
}
private void PostProcessInput(object sender, ProcessInputEventArgs e)
{
InputEventArgs inputEventArgs = e.StagingItem.Input;
if (inputEventArgs.Device == this)
{
RoutedEvent routedEvent = inputEventArgs.RoutedEvent;
if (routedEvent == Manipulation.ManipulationDeltaEvent)
{
ManipulationDeltaEventArgs deltaEventArgs = inputEventArgs as ManipulationDeltaEventArgs;
if (deltaEventArgs != null)
{
// During deltas, see if panning feedback is needed on the window
ManipulationDelta unusedManipulation = deltaEventArgs.UnusedManipulation;
_manipulationLogic.RaiseBoundaryFeedback(unusedManipulation, deltaEventArgs.RequestedComplete);
_manipulationLogic.PushEventsToDevice();
// If a Complete is requested, then pass it along to the manipulation processor
if (deltaEventArgs.RequestedComplete)
{
_manipulationLogic.Complete(/* withInertia = */ deltaEventArgs.RequestedInertia);
_manipulationLogic.PushEventsToDevice();
}
else if (deltaEventArgs.RequestedCancel)
{
Debug.Assert(!deltaEventArgs.IsInertial);
OnManipulationCancel();
}
}
}
else if (routedEvent == Manipulation.ManipulationStartingEvent)
{
ManipulationStartingEventArgs startingEventArgs = inputEventArgs as ManipulationStartingEventArgs;
if (startingEventArgs != null && startingEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
}
else if (routedEvent == Manipulation.ManipulationStartedEvent)
{
ManipulationStartedEventArgs startedEventArgs = inputEventArgs as ManipulationStartedEventArgs;
if (startedEventArgs != null)
{
if (startedEventArgs.RequestedComplete)
{
// If a Complete is requested, pass it along to the manipulation processor
_manipulationLogic.Complete(/* withInertia = */ false);
_manipulationLogic.PushEventsToDevice();
}
else if (startedEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
else
{
// Start ticking to produce delta events
ResumeAllTicking(); // Resumes the ticking of all the suspended devices on the thread
StartTicking(); // Ensures that we continue ticking or restart ticking for this device
}
}
}
else if (routedEvent == Manipulation.ManipulationInertiaStartingEvent)
{
// Switching from using rendering for ticking to a timer at lower priority (handled by ManipulationLogic)
StopTicking();
// Remove all the manipulators so that we dont re-start manipulations accidentally
RemoveAllManipulators();
// Initialize inertia
ManipulationInertiaStartingEventArgs inertiaEventArgs = inputEventArgs as ManipulationInertiaStartingEventArgs;
if (inertiaEventArgs != null)
{
if (inertiaEventArgs.RequestedCancel)
{
OnManipulationCancel();
}
else
{
_manipulationLogic.BeginInertia(inertiaEventArgs);
}
}
}
else if (routedEvent == Manipulation.ManipulationCompletedEvent)
{
_manipulationLogic.OnCompleted();
ManipulationCompletedEventArgs completedEventArgs = inputEventArgs as ManipulationCompletedEventArgs;
if (completedEventArgs != null)
{
if (completedEventArgs.RequestedCancel)
{
Debug.Assert(!completedEventArgs.IsInertial);
OnManipulationCancel();
}
else if (!(completedEventArgs.IsInertial && _ticking))
{
// Remove the manipulation device only if
// another manipulation didnot start
OnManipulationComplete();
}
}
}
else if (routedEvent == Manipulation.ManipulationBoundaryFeedbackEvent)
{
ManipulationBoundaryFeedbackEventArgs boundaryEventArgs = inputEventArgs as ManipulationBoundaryFeedbackEventArgs;
if (boundaryEventArgs != null)
{
_compensateForBoundaryFeedback = boundaryEventArgs.CompensateForBoundaryFeedback;
}
}
}
}
public void ReportBoundaryFeedback(ManipulationDelta unusedManipulation)
{
}
private double YValueForManipulationDelta(ManipulationDelta delta)
{
double topY = (1.0 - delta.Scale.Y) * CounterGrid.ActualHeight;
return topY;
}
public void ReportBoundaryFeedback(ManipulationDelta unusedManipulation)
{
}