GI.Gtk.Objects.GestureSwipe

GestureSwipe is a Gesture implementation able to recognize swipes, after a press/move/.../move/release sequence happens, the GestureSwipe::swipe signal will be emitted, providing the velocity and directionality of the sequence at the time it was lifted.

If the velocity is desired in intermediate points, gestureSwipeGetVelocity can be called on eg. a Gesture::update handler.

All velocities are reported in pixels/sec units.

Exported types

newtype GestureSwipe

Memory-managed wrapper type.

Constructors

GestureSwipe (ManagedPtr GestureSwipe)

Instances

Eq GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

Methods

(==) :: GestureSwipe -> GestureSwipe -> Bool

(/=) :: GestureSwipe -> GestureSwipe -> Bool

GObject GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

ManagedPtrNewtype GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

Methods

toManagedPtr :: GestureSwipe -> ManagedPtr GestureSwipe

TypedObject GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

Methods

glibType :: IO GType

HasParentTypes GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

IsGValue (Maybe GestureSwipe)

Convert GestureSwipe to and from GValue. See toGValue and fromGValue.

Defined in GI.Gtk.Objects.GestureSwipe

Methods

gvalueGType_ :: IO GType

gvalueSet_ :: Ptr GValue -> Maybe GestureSwipe -> IO ()

gvalueGet_ :: Ptr GValue -> IO (Maybe GestureSwipe)

type ParentTypes GestureSwipe

Defined in GI.Gtk.Objects.GestureSwipe

type ParentTypes GestureSwipe = '[GestureSingle, Gesture, EventController, Object]

class (GObject o, IsDescendantOf GestureSwipe o) => IsGestureSwipe o

Type class for types which can be safely cast to GestureSwipe, for instance with toGestureSwipe.

Instances

(GObject o, IsDescendantOf GestureSwipe o) => IsGestureSwipe o

Defined in GI.Gtk.Objects.GestureSwipe

toGestureSwipe :: (MonadIO m, IsGestureSwipe o) => o -> m GestureSwipe

Cast to GestureSwipe, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Methods

bindProperty, bindPropertyFull, forceFloating, freezeNotify, getv, group, handleEvent, handlesSequence, isActive, isFloating, isGroupedWith, isRecognized, notify, notifyByPspec, ref, refSink, reset, runDispose, stealData, stealQdata, thawNotify, ungroup, unref, watchClosure.

Getters

getBoundingBox, getBoundingBoxCenter, getButton, getCurrentButton, getCurrentSequence, getData, getDevice, getExclusive, getGroup, getLastEvent, getLastUpdatedSequence, getPoint, getPropagationPhase, getProperty, getQdata, getSequenceState, getSequences, getTouchOnly, getVelocity, getWidget, getWindow.

Setters

setButton, setData, setDataFull, setExclusive, setPropagationPhase, setProperty, setSequenceState, setState, setTouchOnly, setWindow.

getVelocity

gestureSwipeGetVelocity

Arguments

:: (HasCallStack, MonadIO m, IsGestureSwipe a)

=> a

gesture: a GestureSwipe

-> m (Bool, Double, Double)

Returns: whether velocity could be calculated

If the gesture is recognized, this function returns True and fill in velocityX and velocityY with the recorded velocity, as per the last event(s) processed.

Since: 3.14

new

gestureSwipeNew

Arguments

:: (HasCallStack, MonadIO m, IsWidget a)

=> a

widget: a Widget

-> m GestureSwipe

Returns: a newly created GestureSwipe

Returns a newly created Gesture that recognizes swipes.

Since: 3.14

Signals

swipe

type GestureSwipeSwipeCallback

Arguments

 = Double

velocityX: velocity in the X axis, in pixels/sec

-> Double

velocityY: velocity in the Y axis, in pixels/sec

-> IO ()

This signal is emitted when the recognized gesture is finished, velocity and direction are a product of previously recorded events.

Since: 3.14

afterGestureSwipeSwipe :: (IsGestureSwipe a, MonadIO m) => a -> ((?self :: a) => GestureSwipeSwipeCallback) -> m SignalHandlerId

Connect a signal handler for the swipe signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after gestureSwipe #swipe callback

By default the object invoking the signal is not passed to the callback. If you need to access it, you can use the implit ?self parameter. Note that this requires activating the ImplicitParams GHC extension.

onGestureSwipeSwipe :: (IsGestureSwipe a, MonadIO m) => a -> ((?self :: a) => GestureSwipeSwipeCallback) -> m SignalHandlerId

Connect a signal handler for the swipe signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on gestureSwipe #swipe callback