GI.Gtk.Objects.GestureMultiPress

GestureMultiPress is a Gesture implementation able to recognize multiple clicks on a nearby zone, which can be listened for through the GestureMultiPress::pressed signal. Whenever time or distance between clicks exceed the GTK+ defaults, GestureMultiPress::stopped is emitted, and the click counter is reset.

Callers may also restrict the area that is considered valid for a >1 touch/button press through gestureMultiPressSetArea, so any click happening outside that area is considered to be a first click of its own.

Exported types

newtype GestureMultiPress

Constructors

GestureMultiPress (ManagedPtr GestureMultiPress)

Instances

GObject GestureMultiPress

Methods

gobjectType :: GestureMultiPress -> IO GType

IsObject GestureMultiPress

IsGestureSingle GestureMultiPress

IsGesture GestureMultiPress

IsEventController GestureMultiPress

IsGestureMultiPress GestureMultiPress

class GObject o => IsGestureMultiPress o

Instances

(GObject a, UnknownAncestorError Constraint GestureMultiPress a) => IsGestureMultiPress a

IsGestureMultiPress GestureMultiPress

toGestureMultiPress :: (MonadIO m, IsGestureMultiPress o) => o -> m GestureMultiPress

noGestureMultiPress :: Maybe GestureMultiPress

Methods

getArea

gestureMultiPressGetArea

Arguments

:: (HasCallStack, MonadIO m, IsGestureMultiPress a)

=> a

gesture: a GestureMultiPress

-> m (Bool, Rectangle)

Returns: True if rect was filled with the press area

If an area was set through gestureMultiPressSetArea, this function will return True and fill in rect with the press area. See gestureMultiPressSetArea for more details on what the press area represents.

Since: 3.14

new

gestureMultiPressNew

Arguments

:: (HasCallStack, MonadIO m, IsWidget a)

=> a

widget: a Widget

-> m GestureMultiPress

Returns: a newly created GestureMultiPress

Returns a newly created Gesture that recognizes single and multiple presses.

Since: 3.14

setArea

gestureMultiPressSetArea

Arguments

:: (HasCallStack, MonadIO m, IsGestureMultiPress a)

=> a

gesture: a GestureMultiPress

-> Maybe Rectangle

rect: rectangle to receive coordinates on

-> m ()

If rect is non-Nothing, the press area will be checked to be confined within the rectangle, otherwise the button count will be reset so the press is seen as being the first one. If rect is NULL, the area will be reset to an unrestricted state.

Note: The rectangle is only used to determine whether any non-first click falls within the expected area. This is not akin to an input shape.

Since: 3.14

Signals

pressed

type C_GestureMultiPressPressedCallback = Ptr () -> Int32 -> CDouble -> CDouble -> Ptr () -> IO ()

type GestureMultiPressPressedCallback = Int32 -> Double -> Double -> IO ()

afterGestureMultiPressPressed :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressPressedCallback -> m SignalHandlerId

genClosure_GestureMultiPressPressed :: GestureMultiPressPressedCallback -> IO Closure

mk_GestureMultiPressPressedCallback :: C_GestureMultiPressPressedCallback -> IO (FunPtr C_GestureMultiPressPressedCallback)

noGestureMultiPressPressedCallback :: Maybe GestureMultiPressPressedCallback

onGestureMultiPressPressed :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressPressedCallback -> m SignalHandlerId

wrap_GestureMultiPressPressedCallback :: GestureMultiPressPressedCallback -> Ptr () -> Int32 -> CDouble -> CDouble -> Ptr () -> IO ()

released

type C_GestureMultiPressReleasedCallback = Ptr () -> Int32 -> CDouble -> CDouble -> Ptr () -> IO ()

type GestureMultiPressReleasedCallback = Int32 -> Double -> Double -> IO ()

afterGestureMultiPressReleased :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressReleasedCallback -> m SignalHandlerId

genClosure_GestureMultiPressReleased :: GestureMultiPressReleasedCallback -> IO Closure

mk_GestureMultiPressReleasedCallback :: C_GestureMultiPressReleasedCallback -> IO (FunPtr C_GestureMultiPressReleasedCallback)

noGestureMultiPressReleasedCallback :: Maybe GestureMultiPressReleasedCallback

onGestureMultiPressReleased :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressReleasedCallback -> m SignalHandlerId

wrap_GestureMultiPressReleasedCallback :: GestureMultiPressReleasedCallback -> Ptr () -> Int32 -> CDouble -> CDouble -> Ptr () -> IO ()

stopped

type C_GestureMultiPressStoppedCallback = Ptr () -> Ptr () -> IO ()

type GestureMultiPressStoppedCallback = IO ()

afterGestureMultiPressStopped :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressStoppedCallback -> m SignalHandlerId

genClosure_GestureMultiPressStopped :: GestureMultiPressStoppedCallback -> IO Closure

mk_GestureMultiPressStoppedCallback :: C_GestureMultiPressStoppedCallback -> IO (FunPtr C_GestureMultiPressStoppedCallback)

noGestureMultiPressStoppedCallback :: Maybe GestureMultiPressStoppedCallback

onGestureMultiPressStopped :: (IsGestureMultiPress a, MonadIO m) => a -> GestureMultiPressStoppedCallback -> m SignalHandlerId

wrap_GestureMultiPressStoppedCallback :: GestureMultiPressStoppedCallback -> Ptr () -> Ptr () -> IO ()