GI.Gtk.Objects.EventControllerMotion

EventControllerMotion is an event controller meant for situations where you need to track the position of the pointer.

Exported types

newtype EventControllerMotion

Memory-managed wrapper type.

Constructors

EventControllerMotion (ManagedPtr EventControllerMotion)

Instances

Eq EventControllerMotion

Defined in GI.Gtk.Objects.EventControllerMotion

Methods

(==) :: EventControllerMotion -> EventControllerMotion -> Bool

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

IsGValue EventControllerMotion

Convert EventControllerMotion to and from GValue with toGValue and fromGValue.

Defined in GI.Gtk.Objects.EventControllerMotion

Methods

toGValue :: EventControllerMotion -> IO GValue

fromGValue :: GValue -> IO EventControllerMotion

GObject EventControllerMotion

Defined in GI.Gtk.Objects.EventControllerMotion

Methods

gobjectType :: IO GType

HasParentTypes EventControllerMotion

Defined in GI.Gtk.Objects.EventControllerMotion

type ParentTypes EventControllerMotion

Defined in GI.Gtk.Objects.EventControllerMotion

type ParentTypes EventControllerMotion = '[EventController, Object]

class (GObject o, IsDescendantOf EventControllerMotion o) => IsEventControllerMotion o

Type class for types which can be safely cast to EventControllerMotion, for instance with toEventControllerMotion.

Instances

(GObject o, IsDescendantOf EventControllerMotion o) => IsEventControllerMotion o

Defined in GI.Gtk.Objects.EventControllerMotion

toEventControllerMotion :: (MonadIO m, IsEventControllerMotion o) => o -> m EventControllerMotion

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

noEventControllerMotion :: Maybe EventControllerMotion

A convenience alias for Nothing :: Maybe EventControllerMotion.

Methods

Overloaded methods

getPointerOrigin

eventControllerMotionGetPointerOrigin

Arguments

:: (HasCallStack, MonadIO m, IsEventControllerMotion a)

=> a

controller: a EventControllerMotion

-> m Widget

Returns: the previous pointer focus

Returns the widget that contained the pointer before.

This function can only be used in handlers for the enter and leave signals.

getPointerTarget

eventControllerMotionGetPointerTarget

Arguments

:: (HasCallStack, MonadIO m, IsEventControllerMotion a)

=> a

controller: a EventControllerMotion

-> m Widget

Returns: the next pointer focus

Returns the widget that will contain the pointer afterwards.

This function can only be used in handlers for the enter and leave signals.

new

eventControllerMotionNew

Arguments

:: (HasCallStack, MonadIO m)

=> m EventControllerMotion

Returns: a new EventControllerMotion

Creates a new event controller that will handle motion events.

Properties

containsPointerFocus

Whether the pointer is in a descendant of the controllers widget. See EventControllerMotion:is-pointer-focus.

When handling crossing events, this property is updated before enter or leave are emitted.

getEventControllerMotionContainsPointerFocus :: (MonadIO m, IsEventControllerMotion o) => o -> m Bool

Get the value of the “contains-pointer-focus” property. When overloading is enabled, this is equivalent to

get eventControllerMotion #containsPointerFocus

isPointerFocus

Whether the pointer is in the controllers widget itself, as opposed to in a descendent widget. See EventControllerMotion:contains-pointer-focus.

When handling crossing events, this property is updated before enter or leave are emitted.

getEventControllerMotionIsPointerFocus :: (MonadIO m, IsEventControllerMotion o) => o -> m Bool

Get the value of the “is-pointer-focus” property. When overloading is enabled, this is equivalent to

get eventControllerMotion #isPointerFocus

Signals

enter

type C_EventControllerMotionEnterCallback = Ptr () -> CDouble -> CDouble -> CUInt -> CUInt -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type EventControllerMotionEnterCallback

Arguments

 = Double

x: the x coordinate

-> Double

y: the y coordinate

-> CrossingMode

crossingMode: the crossing mode of this event

-> NotifyType

notifyType: the kind of crossing event

-> IO ()

Signals that the pointer has entered the widget.

afterEventControllerMotionEnter :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionEnterCallback -> m SignalHandlerId

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

after eventControllerMotion #enter callback

genClosure_EventControllerMotionEnter :: MonadIO m => EventControllerMotionEnterCallback -> m (GClosure C_EventControllerMotionEnterCallback)

Wrap the callback into a GClosure.

mk_EventControllerMotionEnterCallback :: C_EventControllerMotionEnterCallback -> IO (FunPtr C_EventControllerMotionEnterCallback)

Generate a function pointer callable from C code, from a C_EventControllerMotionEnterCallback.

noEventControllerMotionEnterCallback :: Maybe EventControllerMotionEnterCallback

A convenience synonym for Nothing :: Maybe EventControllerMotionEnterCallback.

onEventControllerMotionEnter :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionEnterCallback -> m SignalHandlerId

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

on eventControllerMotion #enter callback

wrap_EventControllerMotionEnterCallback :: EventControllerMotionEnterCallback -> C_EventControllerMotionEnterCallback

Wrap a EventControllerMotionEnterCallback into a C_EventControllerMotionEnterCallback.

leave

type C_EventControllerMotionLeaveCallback = Ptr () -> CUInt -> CUInt -> Ptr () -> IO ()

Type for the callback on the (unwrapped) C side.

type EventControllerMotionLeaveCallback

Arguments

 = CrossingMode

crossingMode: the crossing mode of this event

-> NotifyType

notifyType: the kind of crossing event

-> IO ()

Signals that pointer has left the widget.

afterEventControllerMotionLeave :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionLeaveCallback -> m SignalHandlerId

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

after eventControllerMotion #leave callback

genClosure_EventControllerMotionLeave :: MonadIO m => EventControllerMotionLeaveCallback -> m (GClosure C_EventControllerMotionLeaveCallback)

Wrap the callback into a GClosure.

mk_EventControllerMotionLeaveCallback :: C_EventControllerMotionLeaveCallback -> IO (FunPtr C_EventControllerMotionLeaveCallback)

Generate a function pointer callable from C code, from a C_EventControllerMotionLeaveCallback.

noEventControllerMotionLeaveCallback :: Maybe EventControllerMotionLeaveCallback

A convenience synonym for Nothing :: Maybe EventControllerMotionLeaveCallback.

onEventControllerMotionLeave :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionLeaveCallback -> m SignalHandlerId

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

on eventControllerMotion #leave callback

wrap_EventControllerMotionLeaveCallback :: EventControllerMotionLeaveCallback -> C_EventControllerMotionLeaveCallback

Wrap a EventControllerMotionLeaveCallback into a C_EventControllerMotionLeaveCallback.

motion

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

Type for the callback on the (unwrapped) C side.

type EventControllerMotionMotionCallback

Arguments

 = Double

x: the x coordinate

-> Double

y: the y coordinate

-> IO ()

Emitted when the pointer moves inside the widget.

afterEventControllerMotionMotion :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionMotionCallback -> m SignalHandlerId

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

after eventControllerMotion #motion callback

genClosure_EventControllerMotionMotion :: MonadIO m => EventControllerMotionMotionCallback -> m (GClosure C_EventControllerMotionMotionCallback)

Wrap the callback into a GClosure.

mk_EventControllerMotionMotionCallback :: C_EventControllerMotionMotionCallback -> IO (FunPtr C_EventControllerMotionMotionCallback)

Generate a function pointer callable from C code, from a C_EventControllerMotionMotionCallback.

noEventControllerMotionMotionCallback :: Maybe EventControllerMotionMotionCallback

A convenience synonym for Nothing :: Maybe EventControllerMotionMotionCallback.

onEventControllerMotionMotion :: (IsEventControllerMotion a, MonadIO m) => a -> EventControllerMotionMotionCallback -> m SignalHandlerId

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

on eventControllerMotion #motion callback

wrap_EventControllerMotionMotionCallback :: EventControllerMotionMotionCallback -> C_EventControllerMotionMotionCallback

Wrap a EventControllerMotionMotionCallback into a C_EventControllerMotionMotionCallback.