Copyright | Will Thompson and Iñaki García Etxebarria |
---|---|
License | LGPL-2.1 |
Maintainer | Iñaki García Etxebarria |
Safe Haskell | Safe-Inferred |
Language | Haskell2010 |
GtkGestureStylus
is a GtkGesture
specific to stylus input.
The provided signals just relay the basic information of the stylus events.
Synopsis
- newtype GestureStylus = GestureStylus (ManagedPtr GestureStylus)
- class (GObject o, IsDescendantOf GestureStylus o) => IsGestureStylus o
- toGestureStylus :: (MonadIO m, IsGestureStylus o) => o -> m GestureStylus
- gestureStylusGetAxis :: (HasCallStack, MonadIO m, IsGestureStylus a) => a -> AxisUse -> m (Bool, Double)
- gestureStylusGetBacklog :: (HasCallStack, MonadIO m, IsGestureStylus a) => a -> m (Bool, [TimeCoord])
- gestureStylusGetDeviceTool :: (HasCallStack, MonadIO m, IsGestureStylus a) => a -> m (Maybe DeviceTool)
- gestureStylusNew :: (HasCallStack, MonadIO m) => m GestureStylus
- type GestureStylusDownCallback = Double -> Double -> IO ()
- afterGestureStylusDown :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusDownCallback) -> m SignalHandlerId
- onGestureStylusDown :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusDownCallback) -> m SignalHandlerId
- type GestureStylusMotionCallback = Double -> Double -> IO ()
- afterGestureStylusMotion :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusMotionCallback) -> m SignalHandlerId
- onGestureStylusMotion :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusMotionCallback) -> m SignalHandlerId
- type GestureStylusProximityCallback = Double -> Double -> IO ()
- afterGestureStylusProximity :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusProximityCallback) -> m SignalHandlerId
- onGestureStylusProximity :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusProximityCallback) -> m SignalHandlerId
- type GestureStylusUpCallback = Double -> Double -> IO ()
- afterGestureStylusUp :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusUpCallback) -> m SignalHandlerId
- onGestureStylusUp :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusUpCallback) -> m SignalHandlerId
Exported types
newtype GestureStylus Source #
Memory-managed wrapper type.
GestureStylus (ManagedPtr GestureStylus) |
Instances
Eq GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus (==) :: GestureStylus -> GestureStylus -> Bool # (/=) :: GestureStylus -> GestureStylus -> Bool # | |
GObject GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus | |
ManagedPtrNewtype GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus toManagedPtr :: GestureStylus -> ManagedPtr GestureStylus | |
TypedObject GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus | |
HasParentTypes GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus | |
IsGValue (Maybe GestureStylus) Source # | Convert |
Defined in GI.Gtk.Objects.GestureStylus gvalueGType_ :: IO GType gvalueSet_ :: Ptr GValue -> Maybe GestureStylus -> IO () gvalueGet_ :: Ptr GValue -> IO (Maybe GestureStylus) | |
type ParentTypes GestureStylus Source # | |
Defined in GI.Gtk.Objects.GestureStylus |
class (GObject o, IsDescendantOf GestureStylus o) => IsGestureStylus o Source #
Type class for types which can be safely cast to GestureStylus
, for instance with toGestureStylus
.
Instances
(GObject o, IsDescendantOf GestureStylus o) => IsGestureStylus o Source # | |
Defined in GI.Gtk.Objects.GestureStylus |
toGestureStylus :: (MonadIO m, IsGestureStylus o) => o -> m GestureStylus Source #
Cast to GestureStylus
, 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, handlesSequence, isActive, isFloating, isGroupedWith, isRecognized, notify, notifyByPspec, ref, refSink, reset, runDispose, stealData, stealQdata, thawNotify, ungroup, unref, watchClosure.
Getters
getAxes, getAxis, getBacklog, getBoundingBox, getBoundingBoxCenter, getButton, getCurrentButton, getCurrentEvent, getCurrentEventDevice, getCurrentEventState, getCurrentEventTime, getCurrentSequence, getData, getDevice, getDeviceTool, getExclusive, getGroup, getLastEvent, getLastUpdatedSequence, getName, getPoint, getPropagationLimit, getPropagationPhase, getProperty, getQdata, getSequenceState, getSequences, getTouchOnly, getWidget.
Setters
setButton, setData, setDataFull, setExclusive, setName, setPropagationLimit, setPropagationPhase, setProperty, setSequenceState, setState, setStaticName, setTouchOnly.
getAxis
:: (HasCallStack, MonadIO m, IsGestureStylus a) | |
=> a |
|
-> AxisUse |
|
-> m (Bool, Double) | Returns: |
Returns the current value for the requested axis
.
This function must be called from the handler of one of the GestureStylus::down, GestureStylus::motion, GestureStylus::up or GestureStylus::proximity signals.
getBacklog
gestureStylusGetBacklog Source #
:: (HasCallStack, MonadIO m, IsGestureStylus a) | |
=> a |
|
-> m (Bool, [TimeCoord]) | Returns: |
Returns the accumulated backlog of tracking information.
By default, GTK will limit rate of input events. On stylus input where accuracy of strokes is paramount, this function returns the accumulated coordinate/timing state before the emission of the current Gtk.GestureStylus[motion] signal.
This function may only be called within a GestureStylus::motion
signal handler, the state given in this signal and obtainable through
gestureStylusGetAxis
express the latest (most up-to-date)
state in motion history.
The backlog
is provided in chronological order.
getDeviceTool
gestureStylusGetDeviceTool Source #
:: (HasCallStack, MonadIO m, IsGestureStylus a) | |
=> a |
|
-> m (Maybe DeviceTool) | Returns: The current stylus tool |
Returns the GdkDeviceTool
currently driving input through this gesture.
This function must be called from the handler of one of the GestureStylus::down, GestureStylus::motion, GestureStylus::up or GestureStylus::proximity signals.
new
:: (HasCallStack, MonadIO m) | |
=> m GestureStylus | Returns: a newly created stylus gesture |
Creates a new GtkGestureStylus
.
Signals
down
type GestureStylusDownCallback Source #
= Double |
|
-> Double |
|
-> IO () |
Emitted when the stylus touches the device.
afterGestureStylusDown :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusDownCallback) -> m SignalHandlerId Source #
Connect a signal handler for the down signal, to be run after the default handler. When overloading is enabled, this is equivalent to
after
gestureStylus #down 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.
onGestureStylusDown :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusDownCallback) -> m SignalHandlerId Source #
Connect a signal handler for the down signal, to be run before the default handler. When overloading is enabled, this is equivalent to
on
gestureStylus #down callback
motion
type GestureStylusMotionCallback Source #
= Double |
|
-> Double |
|
-> IO () |
Emitted when the stylus moves while touching the device.
afterGestureStylusMotion :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusMotionCallback) -> m SignalHandlerId Source #
Connect a signal handler for the motion signal, to be run after the default handler. When overloading is enabled, this is equivalent to
after
gestureStylus #motion 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.
onGestureStylusMotion :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusMotionCallback) -> m SignalHandlerId Source #
Connect a signal handler for the motion signal, to be run before the default handler. When overloading is enabled, this is equivalent to
on
gestureStylus #motion callback
proximity
type GestureStylusProximityCallback Source #
= Double |
|
-> Double |
|
-> IO () |
Emitted when the stylus is in proximity of the device.
afterGestureStylusProximity :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusProximityCallback) -> m SignalHandlerId Source #
Connect a signal handler for the proximity signal, to be run after the default handler. When overloading is enabled, this is equivalent to
after
gestureStylus #proximity 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.
onGestureStylusProximity :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusProximityCallback) -> m SignalHandlerId Source #
Connect a signal handler for the proximity signal, to be run before the default handler. When overloading is enabled, this is equivalent to
on
gestureStylus #proximity callback
up
type GestureStylusUpCallback Source #
= Double |
|
-> Double |
|
-> IO () |
Emitted when the stylus no longer touches the device.
afterGestureStylusUp :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusUpCallback) -> m SignalHandlerId Source #
Connect a signal handler for the up signal, to be run after the default handler. When overloading is enabled, this is equivalent to
after
gestureStylus #up 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.
onGestureStylusUp :: (IsGestureStylus a, MonadIO m) => a -> ((?self :: a) => GestureStylusUpCallback) -> m SignalHandlerId Source #
Connect a signal handler for the up signal, to be run before the default handler. When overloading is enabled, this is equivalent to
on
gestureStylus #up callback