GestureLongPressProtocol
public protocol GestureLongPressProtocol : GestureSingleProtocol
GtkGestureLongPress
is a GtkGesture
for long presses.
This gesture is also known as “Press and Hold”.
When the timeout is exceeded, the gesture is triggering the
[signalGtk.GestureLongPress::pressed
] signal.
If the touchpoint is lifted before the timeout passes, or if
it drifts too far of the initial press point, the
[signalGtk.GestureLongPress::cancelled
] signal will be emitted.
How long the timeout is before the pressed
signal gets emitted is
determined by the [propertyGtk.Settings:gtk-long-press-time
] setting.
It can be modified by the [propertyGtk.GestureLongPress:delay-factor
]
property.
The GestureLongPressProtocol
protocol exposes the methods and properties of an underlying GtkGestureLongPress
instance.
The default implementation of these can be found in the protocol extension below.
For a concrete class that implements these methods and properties, see GestureLongPress
.
Alternatively, use GestureLongPressRef
as a lighweight, unowned
reference if you already have an instance you just want to use.
-
Untyped pointer to the underlying
GtkGestureLongPress
instance.Declaration
Swift
var ptr: UnsafeMutableRawPointer! { get }
-
gesture_long_press_ptr
Default implementationTyped pointer to the underlying
GtkGestureLongPress
instance.Default Implementation
Return the stored, untyped pointer as a typed pointer to the
GtkGestureLongPress
instance.Declaration
Swift
var gesture_long_press_ptr: UnsafeMutablePointer<GtkGestureLongPress>! { get }
-
Required Initialiser for types conforming to
GestureLongPressProtocol
Declaration
Swift
init(raw: UnsafeMutableRawPointer)
-
bind(property:
Extension methodto: _: flags: transformFrom: transformTo: ) Bind a
GestureLongPressPropertyName
source property to a given target object.Declaration
Swift
@discardableResult @inlinable func bind<Q, T>(property source_property: GestureLongPressPropertyName, to target: T, _ target_property: Q, flags f: BindingFlags = .default, transformFrom transform_from: @escaping GLibObject.ValueTransformer = { $0.transform(destValue: $1) }, transformTo transform_to: @escaping GLibObject.ValueTransformer = { $0.transform(destValue: $1) }) -> BindingRef! where Q : PropertyNameProtocol, T : ObjectProtocol
Parameters
source_property
the source property to bind
target
the target object to bind to
target_property
the target property to bind to
flags
the flags to pass to the
Binding
transform_from
ValueTransformer
to use for forward transformationtransform_to
ValueTransformer
to use for backwards transformationReturn Value
binding reference or
nil
in case of an error -
get(property:
Extension method) Get the value of a GestureLongPress property
Declaration
Swift
@inlinable func get(property: GestureLongPressPropertyName) -> GLibObject.Value
Parameters
property
the property to get the value for
Return Value
the value of the named property
-
set(property:
Extension methodvalue: ) Set the value of a GestureLongPress property. Note that this will only have an effect on properties that are writable and not construct-only!
Declaration
Swift
@inlinable func set(property: GestureLongPressPropertyName, value v: GLibObject.Value)
Parameters
property
the property to get the value for
Return Value
the value of the named property
-
connect(signal:
Extension methodflags: handler: ) Connect a Swift signal handler to the given, typed
GestureLongPressSignalName
signalDeclaration
Swift
@discardableResult @inlinable func connect(signal s: GestureLongPressSignalName, flags f: ConnectFlags = ConnectFlags(0), handler h: @escaping SignalHandler) -> Int
Parameters
signal
The signal to connect
flags
The connection flags to use
data
A pointer to user data to provide to the callback
destroyData
A
GClosureNotify
C function to destroy the data pointed to byuserData
handler
The Swift signal handler (function or callback) to invoke on the given signal
Return Value
The signal handler ID (always greater than 0 for successful connections)
-
connect(signal:
Extension methodflags: data: destroyData: signalHandler: ) Connect a C signal handler to the given, typed
GestureLongPressSignalName
signalDeclaration
Swift
@discardableResult @inlinable func connect(signal s: GestureLongPressSignalName, flags f: ConnectFlags = ConnectFlags(0), data userData: gpointer!, destroyData destructor: GClosureNotify? = nil, signalHandler h: @escaping GCallback) -> Int
Parameters
signal
The signal to connect
flags
The connection flags to use
data
A pointer to user data to provide to the callback
destroyData
A
GClosureNotify
C function to destroy the data pointed to byuserData
signalHandler
The C function to be called on the given signal
Return Value
The signal handler ID (always greater than 0 for successful connections)
-
onCancelled(flags:
Extension methodhandler: ) Emitted whenever a press moved too far, or was released before [signal
Gtk.GestureLongPress::pressed
] happened.Note
This represents the underlyingcancelled
signalDeclaration
Swift
@discardableResult @inlinable func onCancelled(flags: ConnectFlags = ConnectFlags(0), handler: @escaping (_ unownedSelf: GestureLongPressRef) -> Void) -> Int
Parameters
flags
Flags
unownedSelf
Reference to instance of self
handler
The signal handler to call Run the given callback whenever the
cancelled
signal is emitted -
cancelledSignal
Extension methodTyped
cancelled
signal for using theconnect(signal:)
methodsDeclaration
Swift
static var cancelledSignal: GestureLongPressSignalName { get }
-
onPressed(flags:
Extension methodhandler: ) Emitted whenever a press goes unmoved/unreleased longer than what the GTK defaults tell.
Note
This represents the underlyingpressed
signalDeclaration
Swift
@discardableResult @inlinable func onPressed(flags: ConnectFlags = ConnectFlags(0), handler: @escaping (_ unownedSelf: GestureLongPressRef, _ x: Double, _ y: Double) -> Void) -> Int
Parameters
flags
Flags
unownedSelf
Reference to instance of self
x
the X coordinate where the press happened, relative to the widget allocation
y
the Y coordinate where the press happened, relative to the widget allocation
handler
The signal handler to call Run the given callback whenever the
pressed
signal is emitted -
pressedSignal
Extension methodTyped
pressed
signal for using theconnect(signal:)
methodsDeclaration
Swift
static var pressedSignal: GestureLongPressSignalName { get }
-
onNotifyDelayFactor(flags:
Extension methodhandler: ) The notify signal is emitted on an object when one of its properties has its value set through
g_object_set_property()
,g_object_set()
, et al.Note that getting this signal doesn’t itself guarantee that the value of the property has actually changed. When it is emitted is determined by the derived GObject class. If the implementor did not create the property with
G_PARAM_EXPLICIT_NOTIFY
, then any call tog_object_set_property()
results innotify
being emitted, even if the new value is the same as the old. If they did passG_PARAM_EXPLICIT_NOTIFY
, then this signal is emitted only when they explicitly callg_object_notify()
org_object_notify_by_pspec()
, and common practice is to do that only when the value has actually changed.This signal is typically used to obtain change notification for a single property, by specifying the property name as a detail in the
g_signal_connect()
call, like this:(C Language Example):
g_signal_connect (text_view->buffer, "notify::paste-target-list", G_CALLBACK (gtk_text_view_target_list_notify), text_view)
It is important to note that you must use canonical parameter names as detail strings for the notify signal.
Note
This represents the underlyingnotify::delay-factor
signalDeclaration
Swift
@discardableResult @inlinable func onNotifyDelayFactor(flags: ConnectFlags = ConnectFlags(0), handler: @escaping (_ unownedSelf: GestureLongPressRef, _ pspec: ParamSpecRef) -> Void) -> Int
Parameters
flags
Flags
unownedSelf
Reference to instance of self
pspec
the
GParamSpec
of the property which changed.handler
The signal handler to call Run the given callback whenever the
notifyDelayFactor
signal is emitted -
notifyDelayFactorSignal
Extension methodTyped
notify::delay-factor
signal for using theconnect(signal:)
methodsDeclaration
Swift
static var notifyDelayFactorSignal: GestureLongPressSignalName { get }
-
getDelayFactor()
Extension methodReturns the delay factor.
Declaration
Swift
@inlinable func getDelayFactor() -> CDouble
-
set(delayFactor:
Extension method) Applies the given delay factor.
The default long press time will be multiplied by this value. Valid values are in the range [0.5..2.0].
Declaration
Swift
@inlinable func set(delayFactor: CDouble)
-
delayFactor
Extension methodReturns the delay factor.
Declaration
Swift
@inlinable var delayFactor: CDouble { get nonmutating set }