TouchSourceAdapter class abstract

A TouchSource that has empty implementations for many of the less frequently needed methods.

All touches to components that can produce the WaterFX effect must be emitted from a TouchSource, via the touches stream.

Note: All touch sources must be TouchSources, but most touch sources will not need to use all of the methods in TouchSource. So to relieve touch sources from having to implement all of these methods, many of which will be empty implementations anyway (as they are not needed), this class (TouchSourceAdapter) is provided as a utility class. It already has empty implementations for many of the less frequently needed methods. It is an abstract base class, which means that it must be extended and not implemented. Extending classes must implement all of the non-implemented methods, but depending on the needs of the touch source, the empty implementations may or may not need to be overridden.

Implemented types

• TouchSource

Implementers

• PointerTouchSource
• RainTouchSource

Constructors

TouchSourceAdapter()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

isActive → bool

Returns true if the TouchSource in active, false otherwise.

no setter, override

isDisposed → bool

Returns true if the TouchSource in disposed, false otherwise.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

touches → Stream<Touch>

The stream of Touches produced by this TouchSource.

no setter, override

Methods

dispose() → void

Disposes the TouchSource.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

onPointerEnteredImage({required int pointX, required int pointY, required int imageWidth, required int imageHeight, required bool pointerIsDown}) → void

Called by the WaterMovementProcessor when the pointer enters the image.

override

onPointerExitedImage({required int pointX, required int pointY, required int imageWidth, required int imageHeight, required bool pointerIsDown}) → void

Called by the WaterMovementProcessor when the pointer exits the image.

override

onPointerOverImage({required int pointX, required int pointY, required int imageWidth, required int imageHeight, required bool pointerIsDown}) → void

Called by the WaterMovementProcessor when the pointer is over the image and when either or both of the following are true:

override

onSourceImageSizeEstablished(int sourceImageWidth, int sourceImageHeight) → void

Called by the WaterMovementProcessor when the image size has been established.

override

pause() → void

Pauses the TouchSource.

override

start() → void

Starts the TouchSource, or restarts it if it was paused.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited