GI.Gtk.Objects.GestureDrag

GestureDrag is a Gesture implementation that recognizes drag operations. The drag operation itself can be tracked throught the GestureDrag::drag-begin, GestureDrag::drag-update and GestureDrag::drag-end signals, or the relevant coordinates be extracted through gestureDragGetOffset and gestureDragGetStartPoint.

Exported types

newtype GestureDrag

Constructors

GestureDrag (ManagedPtr GestureDrag)

Instances

GObject GestureDrag

Methods

gobjectType :: GestureDrag -> IO GType

IsObject GestureDrag

IsGestureSingle GestureDrag

IsGestureDrag GestureDrag

IsGesture GestureDrag

IsEventController GestureDrag

((~) * info (ResolveGestureDragMethod t GestureDrag), MethodInfo * info GestureDrag p) => IsLabel t (GestureDrag -> p)

Methods

fromLabel :: Proxy# Symbol t -> GestureDrag -> p

((~) * info (ResolveGestureDragMethod t GestureDrag), MethodInfo * info GestureDrag p) => IsLabelProxy t (GestureDrag -> p)

Methods

fromLabelProxy :: Proxy Symbol t -> GestureDrag -> p

HasAttributeList * GestureDrag

type AttributeList GestureDrag

type AttributeList GestureDrag

type SignalList GestureDrag

type SignalList GestureDrag

class GObject o => IsGestureDrag o

Instances

(GObject a, UnknownAncestorError Constraint GestureDrag a) => IsGestureDrag a

IsGestureDrag GestureDrag

IsGestureDrag GesturePan

toGestureDrag :: IsGestureDrag o => o -> IO GestureDrag

noGestureDrag :: Maybe GestureDrag

Methods

getOffset

data GestureDragGetOffsetMethodInfo

Instances

((~) * signature (m (Bool, Double, Double)), MonadIO m, IsGestureDrag a) => MethodInfo * GestureDragGetOffsetMethodInfo a signature

Methods

overloadedMethod :: MethodProxy GestureDragGetOffsetMethodInfo a -> signature -> s

gestureDragGetOffset

Arguments

:: (HasCallStack, MonadIO m, IsGestureDrag a)

=> a

gesture: a Gesture

-> m (Bool, Double, Double)

Returns: True if the gesture is active

If the gesture is active, this function returns True and fills in x and y with the coordinates of the current point, as an offset to the starting drag point.

Since: 3.14

getStartPoint

data GestureDragGetStartPointMethodInfo

Instances

((~) * signature (m (Bool, Double, Double)), MonadIO m, IsGestureDrag a) => MethodInfo * GestureDragGetStartPointMethodInfo a signature

Methods

overloadedMethod :: MethodProxy GestureDragGetStartPointMethodInfo a -> signature -> s

gestureDragGetStartPoint

Arguments

:: (HasCallStack, MonadIO m, IsGestureDrag a)

=> a

gesture: a Gesture

-> m (Bool, Double, Double)

Returns: True if the gesture is active

If the gesture is active, this function returns True and fills in x and y with the drag start coordinates, in window-relative coordinates.

Since: 3.14

new

gestureDragNew

Arguments

:: (HasCallStack, MonadIO m, IsWidget a)

=> a

widget: a Widget

-> m GestureDrag

Returns: a newly created GestureDrag

Returns a newly created Gesture that recognizes drags.

Since: 3.14

Signals

dragBegin

type C_GestureDragDragBeginCallback = Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()

type GestureDragDragBeginCallback = Double -> Double -> IO ()

data GestureDragDragBeginSignalInfo

Instances

SignalInfo GestureDragDragBeginSignalInfo

Associated Types

type HaskellCallbackType GestureDragDragBeginSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o GestureDragDragBeginSignalInfo -> o -> HaskellCallbackType GestureDragDragBeginSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType GestureDragDragBeginSignalInfo

type HaskellCallbackType GestureDragDragBeginSignalInfo = GestureDragDragBeginCallback

afterGestureDragDragBegin :: (GObject a, MonadIO m) => a -> GestureDragDragBeginCallback -> m SignalHandlerId

genClosure_GestureDragDragBegin :: GestureDragDragBeginCallback -> IO Closure

mk_GestureDragDragBeginCallback :: C_GestureDragDragBeginCallback -> IO (FunPtr C_GestureDragDragBeginCallback)

noGestureDragDragBeginCallback :: Maybe GestureDragDragBeginCallback

onGestureDragDragBegin :: (GObject a, MonadIO m) => a -> GestureDragDragBeginCallback -> m SignalHandlerId

wrap_GestureDragDragBeginCallback :: GestureDragDragBeginCallback -> Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()

dragEnd

type C_GestureDragDragEndCallback = Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()

type GestureDragDragEndCallback = Double -> Double -> IO ()

data GestureDragDragEndSignalInfo

Instances

SignalInfo GestureDragDragEndSignalInfo

Associated Types

type HaskellCallbackType GestureDragDragEndSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o GestureDragDragEndSignalInfo -> o -> HaskellCallbackType GestureDragDragEndSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType GestureDragDragEndSignalInfo

type HaskellCallbackType GestureDragDragEndSignalInfo = GestureDragDragEndCallback

afterGestureDragDragEnd :: (GObject a, MonadIO m) => a -> GestureDragDragEndCallback -> m SignalHandlerId

genClosure_GestureDragDragEnd :: GestureDragDragEndCallback -> IO Closure

mk_GestureDragDragEndCallback :: C_GestureDragDragEndCallback -> IO (FunPtr C_GestureDragDragEndCallback)

noGestureDragDragEndCallback :: Maybe GestureDragDragEndCallback

onGestureDragDragEnd :: (GObject a, MonadIO m) => a -> GestureDragDragEndCallback -> m SignalHandlerId

wrap_GestureDragDragEndCallback :: GestureDragDragEndCallback -> Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()

dragUpdate

type C_GestureDragDragUpdateCallback = Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()

type GestureDragDragUpdateCallback = Double -> Double -> IO ()

data GestureDragDragUpdateSignalInfo

Instances

SignalInfo GestureDragDragUpdateSignalInfo

Associated Types

type HaskellCallbackType GestureDragDragUpdateSignalInfo :: *

Methods

connectSignal :: GObject o => SignalProxy o GestureDragDragUpdateSignalInfo -> o -> HaskellCallbackType GestureDragDragUpdateSignalInfo -> SignalConnectMode -> IO SignalHandlerId

type HaskellCallbackType GestureDragDragUpdateSignalInfo

type HaskellCallbackType GestureDragDragUpdateSignalInfo = GestureDragDragUpdateCallback

afterGestureDragDragUpdate :: (GObject a, MonadIO m) => a -> GestureDragDragUpdateCallback -> m SignalHandlerId

genClosure_GestureDragDragUpdate :: GestureDragDragUpdateCallback -> IO Closure

mk_GestureDragDragUpdateCallback :: C_GestureDragDragUpdateCallback -> IO (FunPtr C_GestureDragDragUpdateCallback)

noGestureDragDragUpdateCallback :: Maybe GestureDragDragUpdateCallback

onGestureDragDragUpdate :: (GObject a, MonadIO m) => a -> GestureDragDragUpdateCallback -> m SignalHandlerId

wrap_GestureDragDragUpdateCallback :: GestureDragDragUpdateCallback -> Ptr () -> CDouble -> CDouble -> Ptr () -> IO ()