Provides data for the PinchGestureRecognizer.PinchUpdated event, describing the change in scale produced by a two-finger pinch or spread gesture. More...

Inheritance diagram for Gondwana.Input.Touch.Gestures.PinchedEventArgs:

Public Member Functions
	PinchedEventArgs (double scaleDelta, double currentDistance)
	Initializes a new instance of the PinchedEventArgs class.
	PinchedEventArgs (PinchPhase phase, IReadOnlyList< int > touchIds, System.Drawing.PointF center, double startingDistance, double previousDistance, double currentDistance)
	Initializes complete pinch lifecycle data.

Properties
PinchPhase	Phase `[get]`
	Gets the lifecycle phase of this pinch event.
IReadOnlyList< int >	TouchIds `[get]`
	Gets the two contact IDs participating in the gesture.
System.Drawing.PointF	Center `[get]`
	Gets the midpoint between the two contacts in client coordinates.
double	StartingDistance `[get]`
	Gets the distance at which this pinch gesture began.
double	PreviousDistance `[get]`
	Gets the distance reported by the preceding pinch event.
double	ScaleDelta `[get]`
	Gets the scale factor relative to the previous pinch update. A value greater than `1.0` indicates the fingers moved apart (zoom in / expand), while a value less than `1.0` indicates the fingers moved closer together (zoom out / contract). A value of exactly `1.0` means no change in finger separation occurred.
double	CurrentDistance `[get]`
	Gets the current distance in pixels between the two active touch contact points.
double	TotalScale `[get]`
	Gets the scale relative to the beginning of the current pinch gesture.

Detailed Description

Provides data for the PinchGestureRecognizer.PinchUpdated event, describing the change in scale produced by a two-finger pinch or spread gesture.

Definition at line 7 of file PinchedEventArgs.cs.

Constructor & Destructor Documentation

◆ PinchedEventArgs() [1/2]

Gondwana.Input.Touch.Gestures.PinchedEventArgs.PinchedEventArgs	(	double	scaleDelta,
		double	currentDistance )

Initializes a new instance of the PinchedEventArgs class.

Parameters

scaleDelta	The scale factor relative to the previous pinch update.
currentDistance	The current distance in pixels between the two active touch contact points.

Definition at line 51 of file PinchedEventArgs.cs.

◆ PinchedEventArgs() [2/2]

Gondwana.Input.Touch.Gestures.PinchedEventArgs.PinchedEventArgs	(	PinchPhase	phase,
		IReadOnlyList< int >	touchIds,
		System.Drawing.PointF	center,
		double	startingDistance,
		double	previousDistance,
		double	currentDistance )

Initializes complete pinch lifecycle data.

Parameters

phase	The phase.
touchIds	The touch ids.
center	The center.
startingDistance	The starting distance.
previousDistance	The previous distance.
currentDistance	The current distance.

Definition at line 72 of file PinchedEventArgs.cs.

Property Documentation

◆ Center

System.Drawing.PointF Gondwana.Input.Touch.Gestures.PinchedEventArgs.Center

get

Gets the midpoint between the two contacts in client coordinates.

Definition at line 16 of file PinchedEventArgs.cs.

◆ CurrentDistance

double Gondwana.Input.Touch.Gestures.PinchedEventArgs.CurrentDistance

get

Gets the current distance in pixels between the two active touch contact points.

Definition at line 35 of file PinchedEventArgs.cs.

◆ Phase

PinchPhase Gondwana.Input.Touch.Gestures.PinchedEventArgs.Phase

get

Gets the lifecycle phase of this pinch event.

Definition at line 10 of file PinchedEventArgs.cs.

◆ PreviousDistance

double Gondwana.Input.Touch.Gestures.PinchedEventArgs.PreviousDistance

get

Gets the distance reported by the preceding pinch event.

Definition at line 22 of file PinchedEventArgs.cs.

◆ ScaleDelta

double Gondwana.Input.Touch.Gestures.PinchedEventArgs.ScaleDelta

get

Gets the scale factor relative to the previous pinch update. A value greater than 1.0 indicates the fingers moved apart (zoom in / expand), while a value less than 1.0 indicates the fingers moved closer together (zoom out / contract). A value of exactly 1.0 means no change in finger separation occurred.

Definition at line 30 of file PinchedEventArgs.cs.

◆ StartingDistance

double Gondwana.Input.Touch.Gestures.PinchedEventArgs.StartingDistance

get

Gets the distance at which this pinch gesture began.

Definition at line 19 of file PinchedEventArgs.cs.

◆ TotalScale

double Gondwana.Input.Touch.Gestures.PinchedEventArgs.TotalScale

get

Gets the scale relative to the beginning of the current pinch gesture.

Definition at line 40 of file PinchedEventArgs.cs.

◆ TouchIds

IReadOnlyList<int> Gondwana.Input.Touch.Gestures.PinchedEventArgs.TouchIds

get

Gets the two contact IDs participating in the gesture.

Definition at line 13 of file PinchedEventArgs.cs.

Public Member Functions

Properties