Module javafx.graphics

Package javafx.scene.input

Class SwipeEvent

java.lang.Object

java.util.EventObject

javafx.event.Event

javafx.scene.input.InputEvent

javafx.scene.input.GestureEvent

javafx.scene.input.SwipeEvent

All Implemented Interfaces:

Serializable, Cloneable

public final class SwipeEvent
extends GestureEvent

Swipe event indicates that user performed a swipe gesture such as dragging a finger in one direction on touch screen.

Unlike some other gestures, the swipe gesture is not continual - the whole gesture produces only one event. The event is delivered to the top-most node picked on the gesture coordinates.

The swipe gesture has four types according to the movement direction. The gesture can be performed by any number of touch points, the number is provided by getTouchCount() method.

Note that swipe and scroll gestures are not exclusive. A single touch screen action can result in both gestures being delivered.

Note that the capability to produce swipes is dependent on the used input devices and underlying platform's capabilities and settings (especially without touch-screen user's possibilities of producing swipes are significantly reduced).

As all gestures, swipe can be direct (performed directly at the concrete coordinates as on touch screen - the center of the gesture is used as gesture coordinates) or indirect (performed indirectly as on track pad - the mouse cursor location is usually used as the gesture coordinates in this case).

Since:

JavaFX 2.2

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static EventType<SwipeEvent>	ANY	Common supertype for all swipe event types.
static EventType<SwipeEvent>	SWIPE_DOWN	This event occurs when user performs downward swipe gesture.
static EventType<SwipeEvent>	SWIPE_LEFT	This event occurs when user performs leftward swipe gesture.
static EventType<SwipeEvent>	SWIPE_RIGHT	This event occurs when user performs rightward swipe gesture.
static EventType<SwipeEvent>	SWIPE_UP	This event occurs when user performs upward swipe gesture.

Fields inherited from class javafx.event.Event

consumed, eventType, NULL_SOURCE_TARGET, target

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor	Description
SwipeEvent(Object source, EventTarget target, EventType<SwipeEvent> eventType, double x, double y, double screenX, double screenY, boolean shiftDown, boolean controlDown, boolean altDown, boolean metaDown, boolean direct, int touchCount, PickResult pickResult)	Constructs new SwipeEvent event.
SwipeEvent(EventType<SwipeEvent> eventType, double x, double y, double screenX, double screenY, boolean shiftDown, boolean controlDown, boolean altDown, boolean metaDown, boolean direct, int touchCount, PickResult pickResult)	Constructs new SwipeEvent event with null source and target.

Method Summary

Modifier and Type	Method	Description
SwipeEvent	copyFor(Object newSource, EventTarget newTarget)	Creates and returns a copy of this event with the specified event source and target.
SwipeEvent	copyFor(Object newSource, EventTarget newTarget, EventType<SwipeEvent> type)	Creates a copy of the given event with the given fields substituted.
EventType<SwipeEvent>	getEventType()	Gets the event type of this event.
int	getTouchCount()	Gets number of touch points that caused this event.
String	toString()	Returns a string representation of this SwipeEvent object.

Methods inherited from class javafx.event.Event

clone, consume, fireEvent, getTarget, isConsumed

Methods inherited from class java.util.EventObject

getSource

Methods inherited from class javafx.scene.input.GestureEvent

getPickResult, getSceneX, getSceneY, getScreenX, getScreenY, getX, getY, getZ, isAltDown, isControlDown, isDirect, isInertia, isMetaDown, isShiftDown, isShortcutDown

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ANY

public static final EventType<SwipeEvent> ANY

Common supertype for all swipe event types.

SWIPE_LEFT

public static final EventType<SwipeEvent> SWIPE_LEFT

This event occurs when user performs leftward swipe gesture.

SWIPE_RIGHT

public static final EventType<SwipeEvent> SWIPE_RIGHT

This event occurs when user performs rightward swipe gesture.

SWIPE_UP

public static final EventType<SwipeEvent> SWIPE_UP

This event occurs when user performs upward swipe gesture.

SWIPE_DOWN

public static final EventType<SwipeEvent> SWIPE_DOWN

This event occurs when user performs downward swipe gesture.

Constructor Detail

SwipeEvent

public SwipeEvent(Object source,
                  EventTarget target,
                  EventType<SwipeEvent> eventType,
                  double x,
                  double y,
                  double screenX,
                  double screenY,
                  boolean shiftDown,
                  boolean controlDown,
                  boolean altDown,
                  boolean metaDown,
                  boolean direct,
                  int touchCount,
                  PickResult pickResult)

Constructs new SwipeEvent event.

Parameters:

source - the source of the event. Can be null.

target - the target of the event. Can be null.

eventType - The type of the event.

x - The x with respect to the scene.

y - The y with respect to the scene.

screenX - The x coordinate relative to screen.

screenY - The y coordinate relative to screen.

shiftDown - true if shift modifier was pressed.

controlDown - true if control modifier was pressed.

altDown - true if alt modifier was pressed.

metaDown - true if meta modifier was pressed.

direct - true if the event was caused by direct input device. See GestureEvent.isDirect()

touchCount - number of touch points

pickResult - pick result. Can be null, in this case a 2D pick result without any further values is constructed based on the scene coordinates and the target

Since:

JavaFX 8.0

SwipeEvent

public SwipeEvent(EventType<SwipeEvent> eventType,
                  double x,
                  double y,
                  double screenX,
                  double screenY,
                  boolean shiftDown,
                  boolean controlDown,
                  boolean altDown,
                  boolean metaDown,
                  boolean direct,
                  int touchCount,
                  PickResult pickResult)

Constructs new SwipeEvent event with null source and target.

Parameters:

eventType - The type of the event.

x - The x with respect to the scene.

y - The y with respect to the scene.

screenX - The x coordinate relative to screen.

screenY - The y coordinate relative to screen.

shiftDown - true if shift modifier was pressed.

controlDown - true if control modifier was pressed.

altDown - true if alt modifier was pressed.

metaDown - true if meta modifier was pressed.

direct - true if the event was caused by direct input device. See GestureEvent.isDirect()

touchCount - number of touch points

pickResult - pick result. Can be null, in this case a 2D pick result without any further values is constructed based on the scene coordinates

Since:

JavaFX 8.0

Method Detail

getTouchCount

public int getTouchCount()

Gets number of touch points that caused this event.

Returns:

Number of touch points that caused this event

toString

public String toString()

Returns a string representation of this SwipeEvent object.

Overrides:

toString in class GestureEvent

Returns:

a string representation of this SwipeEvent object.

copyFor

public SwipeEvent copyFor(Object newSource,
                          EventTarget newTarget)

Description copied from class: GestureEvent

Creates and returns a copy of this event with the specified event source and target. If the source or target is set to null, it is replaced by the NULL_SOURCE_TARGET value.

Overrides:

copyFor in class GestureEvent

Parameters:

newSource - the new source of the copied event

newTarget - the new target of the copied event

Returns:

the event copy with the new source and target

copyFor

public SwipeEvent copyFor(Object newSource,
                          EventTarget newTarget,
                          EventType<SwipeEvent> type)

Creates a copy of the given event with the given fields substituted.

Parameters:

newSource - the new source of the copied event

newTarget - the new target of the copied event

type - the new eventType

Returns:

the event copy with the fields substituted

Since:

JavaFX 8.0

getEventType

public EventType<SwipeEvent> getEventType()

Description copied from class: Event

Gets the event type of this event. Objects of the same Event class can have different event types. These event types further specify what kind of event occurred.

Overrides:

getEventType in class GestureEvent

Returns:

the event type