    {-# LANGUAGE ImplicitParams, RankNTypes, TypeApplications #-}

    -- | Copyright  : Will Thompson and Iñaki García Etxebarria
    -- License    : LGPL-2.1
    -- Maintainer : Iñaki García Etxebarria
    --
    -- Recognizes 2-finger pinch\/zoom gestures.
    --
    -- Whenever the distance between both tracked sequences changes, the
    -- [GestureZoom::scaleChanged]("GI.Gtk.Objects.GestureZoom#g:signal:scaleChanged") signal is emitted to report
    -- the scale factor.

    #if !defined(__HADDOCK_VERSION__)
    #define ENABLE_OVERLOADING
    #endif

    module GI.Gtk.Objects.GestureZoom
        (

    -- * Exported types
        GestureZoom(..)                         ,
        IsGestureZoom                           ,
        toGestureZoom                           ,

     -- * Methods
    -- |
    --
    --  === __Click to display all available methods, including inherited ones__
    -- ==== Methods
    -- [bindProperty]("GI.GObject.Objects.Object#g:method:bindProperty"), [bindPropertyFull]("GI.GObject.Objects.Object#g:method:bindPropertyFull"), [forceFloating]("GI.GObject.Objects.Object#g:method:forceFloating"), [freezeNotify]("GI.GObject.Objects.Object#g:method:freezeNotify"), [getv]("GI.GObject.Objects.Object#g:method:getv"), [group]("GI.Gtk.Objects.Gesture#g:method:group"), [handlesSequence]("GI.Gtk.Objects.Gesture#g:method:handlesSequence"), [isActive]("GI.Gtk.Objects.Gesture#g:method:isActive"), [isFloating]("GI.GObject.Objects.Object#g:method:isFloating"), [isGroupedWith]("GI.Gtk.Objects.Gesture#g:method:isGroupedWith"), [isRecognized]("GI.Gtk.Objects.Gesture#g:method:isRecognized"), [notify]("GI.GObject.Objects.Object#g:method:notify"), [notifyByPspec]("GI.GObject.Objects.Object#g:method:notifyByPspec"), [ref]("GI.GObject.Objects.Object#g:method:ref"), [refSink]("GI.GObject.Objects.Object#g:method:refSink"), [reset]("GI.Gtk.Objects.EventController#g:method:reset"), [runDispose]("GI.GObject.Objects.Object#g:method:runDispose"), [stealData]("GI.GObject.Objects.Object#g:method:stealData"), [stealQdata]("GI.GObject.Objects.Object#g:method:stealQdata"), [thawNotify]("GI.GObject.Objects.Object#g:method:thawNotify"), [ungroup]("GI.Gtk.Objects.Gesture#g:method:ungroup"), [unref]("GI.GObject.Objects.Object#g:method:unref"), [watchClosure]("GI.GObject.Objects.Object#g:method:watchClosure").
    --
    -- ==== Getters
    -- [getBoundingBox]("GI.Gtk.Objects.Gesture#g:method:getBoundingBox"), [getBoundingBoxCenter]("GI.Gtk.Objects.Gesture#g:method:getBoundingBoxCenter"), [getCurrentEvent]("GI.Gtk.Objects.EventController#g:method:getCurrentEvent"), [getCurrentEventDevice]("GI.Gtk.Objects.EventController#g:method:getCurrentEventDevice"), [getCurrentEventState]("GI.Gtk.Objects.EventController#g:method:getCurrentEventState"), [getCurrentEventTime]("GI.Gtk.Objects.EventController#g:method:getCurrentEventTime"), [getData]("GI.GObject.Objects.Object#g:method:getData"), [getDevice]("GI.Gtk.Objects.Gesture#g:method:getDevice"), [getGroup]("GI.Gtk.Objects.Gesture#g:method:getGroup"), [getLastEvent]("GI.Gtk.Objects.Gesture#g:method:getLastEvent"), [getLastUpdatedSequence]("GI.Gtk.Objects.Gesture#g:method:getLastUpdatedSequence"), [getName]("GI.Gtk.Objects.EventController#g:method:getName"), [getPoint]("GI.Gtk.Objects.Gesture#g:method:getPoint"), [getPropagationLimit]("GI.Gtk.Objects.EventController#g:method:getPropagationLimit"), [getPropagationPhase]("GI.Gtk.Objects.EventController#g:method:getPropagationPhase"), [getProperty]("GI.GObject.Objects.Object#g:method:getProperty"), [getQdata]("GI.GObject.Objects.Object#g:method:getQdata"), [getScaleDelta]("GI.Gtk.Objects.GestureZoom#g:method:getScaleDelta"), [getSequenceState]("GI.Gtk.Objects.Gesture#g:method:getSequenceState"), [getSequences]("GI.Gtk.Objects.Gesture#g:method:getSequences"), [getWidget]("GI.Gtk.Objects.EventController#g:method:getWidget").
    --
    -- ==== Setters
    -- [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [setName]("GI.Gtk.Objects.EventController#g:method:setName"), [setPropagationLimit]("GI.Gtk.Objects.EventController#g:method:setPropagationLimit"), [setPropagationPhase]("GI.Gtk.Objects.EventController#g:method:setPropagationPhase"), [setProperty]("GI.GObject.Objects.Object#g:method:setProperty"), [setSequenceState]("GI.Gtk.Objects.Gesture#g:method:setSequenceState"), [setState]("GI.Gtk.Objects.Gesture#g:method:setState"), [setStaticName]("GI.Gtk.Objects.EventController#g:method:setStaticName").

    #if defined(ENABLE_OVERLOADING)
        ResolveGestureZoomMethod                ,
    #endif

    -- ** getScaleDelta #method:getScaleDelta#

    #if defined(ENABLE_OVERLOADING)
        GestureZoomGetScaleDeltaMethodInfo      ,
    #endif
        gestureZoomGetScaleDelta                ,

    -- ** new #method:new#

        gestureZoomNew                          ,

     -- * Signals

    -- ** scaleChanged #signal:scaleChanged#

        GestureZoomScaleChangedCallback         ,
    #if defined(ENABLE_OVERLOADING)
        GestureZoomScaleChangedSignalInfo       ,
    #endif
        afterGestureZoomScaleChanged            ,
        onGestureZoomScaleChanged               ,

        ) where

    import Data.GI.Base.ShortPrelude
    import qualified Data.GI.Base.ShortPrelude as SP
    import qualified Data.GI.Base.Overloading as O
    import qualified Prelude as P

    import qualified Data.GI.Base.Attributes as GI.Attributes
    import qualified Data.GI.Base.BasicTypes as B.Types
    import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
    import qualified Data.GI.Base.GArray as B.GArray
    import qualified Data.GI.Base.GClosure as B.GClosure
    import qualified Data.GI.Base.GError as B.GError
    import qualified Data.GI.Base.GHashTable as B.GHT
    import qualified Data.GI.Base.GVariant as B.GVariant
    import qualified Data.GI.Base.GValue as B.GValue
    import qualified Data.GI.Base.GParamSpec as B.GParamSpec
    import qualified Data.GI.Base.CallStack as B.CallStack
    import qualified Data.GI.Base.Properties as B.Properties
    import qualified Data.GI.Base.Signals as B.Signals
    import qualified Control.Monad.IO.Class as MIO
    import qualified Data.Coerce as Coerce
    import qualified Data.Text as T
    import qualified Data.Kind as DK
    import qualified Data.ByteString.Char8 as B
    import qualified Data.Map as Map
    import qualified Foreign.Ptr as FP
    import qualified GHC.OverloadedLabels as OL
    import qualified GHC.Records as R
    import qualified Data.Word as DW
    import qualified Data.Int as DI
    import qualified System.Posix.Types as SPT
    import qualified Foreign.C.Types as FCT

    -- Workaround for https://gitlab.haskell.org/ghc/ghc/-/issues/23392
    #if MIN_VERSION_base(4,18,0)
    import qualified GI.Cairo.Structs.Context as Cairo.Context
    import qualified GI.Cairo.Structs.FontOptions as Cairo.FontOptions
    import qualified GI.GLib.Callbacks as GLib.Callbacks
    import qualified GI.GLib.Structs.Bytes as GLib.Bytes
    import qualified GI.GObject.Objects.Object as GObject.Object
    import qualified GI.Gdk.Flags as Gdk.Flags
    import qualified GI.Gdk.Interfaces.Paintable as Gdk.Paintable
    import qualified GI.Gdk.Objects.Clipboard as Gdk.Clipboard
    import qualified GI.Gdk.Objects.Cursor as Gdk.Cursor
    import qualified GI.Gdk.Objects.Device as Gdk.Device
    import qualified GI.Gdk.Objects.Display as Gdk.Display
    import qualified GI.Gdk.Objects.Event as Gdk.Event
    import qualified GI.Gdk.Objects.FrameClock as Gdk.FrameClock
    import qualified GI.Gdk.Objects.Snapshot as Gdk.Snapshot
    import qualified GI.Gdk.Objects.Surface as Gdk.Surface
    import qualified GI.Gdk.Objects.Texture as Gdk.Texture
    import qualified GI.Gdk.Structs.EventSequence as Gdk.EventSequence
    import qualified GI.Gdk.Structs.RGBA as Gdk.RGBA
    import qualified GI.Gdk.Structs.Rectangle as Gdk.Rectangle
    import qualified GI.Gio.Interfaces.ActionGroup as Gio.ActionGroup
    import qualified GI.Gio.Interfaces.Icon as Gio.Icon
    import qualified GI.Gio.Interfaces.ListModel as Gio.ListModel
    import qualified GI.Graphene.Structs.Matrix as Graphene.Matrix
    import qualified GI.Graphene.Structs.Point as Graphene.Point
    import qualified GI.Graphene.Structs.Point3D as Graphene.Point3D
    import qualified GI.Graphene.Structs.Rect as Graphene.Rect
    import qualified GI.Graphene.Structs.Size as Graphene.Size
    import qualified GI.Graphene.Structs.Vec3 as Graphene.Vec3
    import qualified GI.Graphene.Structs.Vec4 as Graphene.Vec4
    import qualified GI.Gsk.Enums as Gsk.Enums
    import qualified GI.Gsk.Flags as Gsk.Flags
    import qualified GI.Gsk.Objects.GLShader as Gsk.GLShader
    import qualified GI.Gsk.Objects.RenderNode as Gsk.RenderNode
    import qualified GI.Gsk.Objects.Renderer as Gsk.Renderer
    import qualified GI.Gsk.Structs.ColorStop as Gsk.ColorStop
    import qualified GI.Gsk.Structs.ComponentTransfer as Gsk.ComponentTransfer
    import qualified GI.Gsk.Structs.Path as Gsk.Path
    import qualified GI.Gsk.Structs.RoundedRect as Gsk.RoundedRect
    import qualified GI.Gsk.Structs.Shadow as Gsk.Shadow
    import qualified GI.Gsk.Structs.Stroke as Gsk.Stroke
    import qualified GI.Gsk.Structs.Transform as Gsk.Transform
    import qualified GI.Gtk.Callbacks as Gtk.Callbacks
    import {-# SOURCE #-} qualified GI.Gtk.Enums as Gtk.Enums
    import {-# SOURCE #-} qualified GI.Gtk.Flags as Gtk.Flags
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Accessible as Gtk.Accessible
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Buildable as Gtk.Buildable
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.ConstraintTarget as Gtk.ConstraintTarget
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Native as Gtk.Native
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.Root as Gtk.Root
    import {-# SOURCE #-} qualified GI.Gtk.Interfaces.StyleProvider as Gtk.StyleProvider
    import {-# SOURCE #-} qualified GI.Gtk.Objects.ATContext as Gtk.ATContext
    import {-# SOURCE #-} qualified GI.Gtk.Objects.EventController as Gtk.EventController
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Gesture as Gtk.Gesture
    import {-# SOURCE #-} qualified GI.Gtk.Objects.LayoutChild as Gtk.LayoutChild
    import {-# SOURCE #-} qualified GI.Gtk.Objects.LayoutManager as Gtk.LayoutManager
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Settings as Gtk.Settings
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Snapshot as Gtk.Snapshot
    import {-# SOURCE #-} qualified GI.Gtk.Objects.StyleContext as Gtk.StyleContext
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Tooltip as Gtk.Tooltip
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Widget as Gtk.Widget
    import {-# SOURCE #-} qualified GI.Gtk.Structs.Border as Gtk.Border
    import {-# SOURCE #-} qualified GI.Gtk.Structs.Requisition as Gtk.Requisition
    import qualified GI.Pango.Enums as Pango.Enums
    import qualified GI.Pango.Objects.Context as Pango.Context
    import qualified GI.Pango.Objects.FontMap as Pango.FontMap
    import qualified GI.Pango.Objects.Layout as Pango.Layout

    #else
    import qualified GI.GObject.Objects.Object as GObject.Object
    import {-# SOURCE #-} qualified GI.Gtk.Objects.EventController as Gtk.EventController
    import {-# SOURCE #-} qualified GI.Gtk.Objects.Gesture as Gtk.Gesture

    #endif

    -- | Memory-managed wrapper type.
    newtype GestureZoom = GestureZoom (SP.ManagedPtr GestureZoom)
        deriving (GestureZoom -> GestureZoom -> Bool
    (GestureZoom -> GestureZoom -> Bool)
    -> (GestureZoom -> GestureZoom -> Bool) -> Eq GestureZoom
    forall a. (a -> a -> Bool) -> (a -> a -> Bool) -> Eq a
    $c== :: GestureZoom -> GestureZoom -> Bool
    == :: GestureZoom -> GestureZoom -> Bool
    $c/= :: GestureZoom -> GestureZoom -> Bool
    /= :: GestureZoom -> GestureZoom -> Bool
    Eq)

    instance SP.ManagedPtrNewtype GestureZoom where
        toManagedPtr :: GestureZoom -> ManagedPtr GestureZoom
    toManagedPtr (GestureZoom ManagedPtr GestureZoom
    p) = ManagedPtr GestureZoom
    p

    foreign import ccall "gtk_gesture_zoom_get_type"
        c_gtk_gesture_zoom_get_type :: IO B.Types.GType

    instance B.Types.TypedObject GestureZoom where
        glibType :: IO GType
    glibType = IO GType
    c_gtk_gesture_zoom_get_type

    instance B.Types.GObject GestureZoom

    -- | Type class for types which can be safely cast to t'GestureZoom', for instance with `toGestureZoom`.
    class (SP.GObject o, O.IsDescendantOf GestureZoom o) => IsGestureZoom o
    instance (SP.GObject o, O.IsDescendantOf GestureZoom o) => IsGestureZoom o

    instance O.HasParentTypes GestureZoom
    type instance O.ParentTypes GestureZoom = '[Gtk.Gesture.Gesture, Gtk.EventController.EventController, GObject.Object.Object]

    -- | Cast to t'GestureZoom', for types for which this is known to be safe. For general casts, use 'Data.GI.Base.ManagedPtr.castTo'.
    toGestureZoom :: (MIO.MonadIO m, IsGestureZoom o) => o -> m GestureZoom
    toGestureZoom :: forall (m :: * -> *) o.
    (MonadIO m, IsGestureZoom o) =>
    o -> m GestureZoom
    toGestureZoom = IO GestureZoom -> m GestureZoom
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    MIO.liftIO (IO GestureZoom -> m GestureZoom)
    -> (o -> IO GestureZoom) -> o -> m GestureZoom
    forall b c a. (b -> c) -> (a -> b) -> a -> c
    . (ManagedPtr GestureZoom -> GestureZoom) -> o -> IO GestureZoom
    forall o o'.
    (HasCallStack, ManagedPtrNewtype o, TypedObject o,
     ManagedPtrNewtype o', TypedObject o') =>
    (ManagedPtr o' -> o') -> o -> IO o'
    B.ManagedPtr.unsafeCastTo ManagedPtr GestureZoom -> GestureZoom
    GestureZoom

    -- | Convert t'GestureZoom' to and from t'Data.GI.Base.GValue.GValue'. See 'Data.GI.Base.GValue.toGValue' and 'Data.GI.Base.GValue.fromGValue'.
    instance B.GValue.IsGValue (Maybe GestureZoom) where
        gvalueGType_ :: IO GType
    gvalueGType_ = IO GType
    c_gtk_gesture_zoom_get_type
        gvalueSet_ :: Ptr GValue -> Maybe GestureZoom -> IO ()
    gvalueSet_ Ptr GValue
    gv Maybe GestureZoom
    P.Nothing = Ptr GValue -> Ptr GestureZoom -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv (Ptr GestureZoom
    forall a. Ptr a
    FP.nullPtr :: FP.Ptr GestureZoom)
        gvalueSet_ Ptr GValue
    gv (P.Just GestureZoom
    obj) = GestureZoom -> (Ptr GestureZoom -> IO ()) -> IO ()
    forall a c.
    (HasCallStack, ManagedPtrNewtype a) =>
    a -> (Ptr a -> IO c) -> IO c
    B.ManagedPtr.withManagedPtr GestureZoom
    obj (Ptr GValue -> Ptr GestureZoom -> IO ()
    forall a. GObject a => Ptr GValue -> Ptr a -> IO ()
    B.GValue.set_object Ptr GValue
    gv)
        gvalueGet_ :: Ptr GValue -> IO (Maybe GestureZoom)
    gvalueGet_ Ptr GValue
    gv = do
            ptr <- Ptr GValue -> IO (Ptr GestureZoom)
    forall a. GObject a => Ptr GValue -> IO (Ptr a)
    B.GValue.get_object Ptr GValue
    gv :: IO (FP.Ptr GestureZoom)
            if ptr /= FP.nullPtr
            then P.Just <$> B.ManagedPtr.newObject GestureZoom ptr
            else return P.Nothing

    #if defined(ENABLE_OVERLOADING)
    type family ResolveGestureZoomMethod (t :: Symbol) (o :: DK.Type) :: DK.Type where
        ResolveGestureZoomMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo
        ResolveGestureZoomMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo
        ResolveGestureZoomMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo
        ResolveGestureZoomMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo
        ResolveGestureZoomMethod "getv" o = GObject.Object.ObjectGetvMethodInfo
        ResolveGestureZoomMethod "group" o = Gtk.Gesture.GestureGroupMethodInfo
        ResolveGestureZoomMethod "handlesSequence" o = Gtk.Gesture.GestureHandlesSequenceMethodInfo
        ResolveGestureZoomMethod "isActive" o = Gtk.Gesture.GestureIsActiveMethodInfo
        ResolveGestureZoomMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo
        ResolveGestureZoomMethod "isGroupedWith" o = Gtk.Gesture.GestureIsGroupedWithMethodInfo
        ResolveGestureZoomMethod "isRecognized" o = Gtk.Gesture.GestureIsRecognizedMethodInfo
        ResolveGestureZoomMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo
        ResolveGestureZoomMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo
        ResolveGestureZoomMethod "ref" o = GObject.Object.ObjectRefMethodInfo
        ResolveGestureZoomMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo
        ResolveGestureZoomMethod "reset" o = Gtk.EventController.EventControllerResetMethodInfo
        ResolveGestureZoomMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo
        ResolveGestureZoomMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo
        ResolveGestureZoomMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo
        ResolveGestureZoomMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo
        ResolveGestureZoomMethod "ungroup" o = Gtk.Gesture.GestureUngroupMethodInfo
        ResolveGestureZoomMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo
        ResolveGestureZoomMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo
        ResolveGestureZoomMethod "getBoundingBox" o = Gtk.Gesture.GestureGetBoundingBoxMethodInfo
        ResolveGestureZoomMethod "getBoundingBoxCenter" o = Gtk.Gesture.GestureGetBoundingBoxCenterMethodInfo
        ResolveGestureZoomMethod "getCurrentEvent" o = Gtk.EventController.EventControllerGetCurrentEventMethodInfo
        ResolveGestureZoomMethod "getCurrentEventDevice" o = Gtk.EventController.EventControllerGetCurrentEventDeviceMethodInfo
        ResolveGestureZoomMethod "getCurrentEventState" o = Gtk.EventController.EventControllerGetCurrentEventStateMethodInfo
        ResolveGestureZoomMethod "getCurrentEventTime" o = Gtk.EventController.EventControllerGetCurrentEventTimeMethodInfo
        ResolveGestureZoomMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo
        ResolveGestureZoomMethod "getDevice" o = Gtk.Gesture.GestureGetDeviceMethodInfo
        ResolveGestureZoomMethod "getGroup" o = Gtk.Gesture.GestureGetGroupMethodInfo
        ResolveGestureZoomMethod "getLastEvent" o = Gtk.Gesture.GestureGetLastEventMethodInfo
        ResolveGestureZoomMethod "getLastUpdatedSequence" o = Gtk.Gesture.GestureGetLastUpdatedSequenceMethodInfo
        ResolveGestureZoomMethod "getName" o = Gtk.EventController.EventControllerGetNameMethodInfo
        ResolveGestureZoomMethod "getPoint" o = Gtk.Gesture.GestureGetPointMethodInfo
        ResolveGestureZoomMethod "getPropagationLimit" o = Gtk.EventController.EventControllerGetPropagationLimitMethodInfo
        ResolveGestureZoomMethod "getPropagationPhase" o = Gtk.EventController.EventControllerGetPropagationPhaseMethodInfo
        ResolveGestureZoomMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo
        ResolveGestureZoomMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo
        ResolveGestureZoomMethod "getScaleDelta" o = GestureZoomGetScaleDeltaMethodInfo
        ResolveGestureZoomMethod "getSequenceState" o = Gtk.Gesture.GestureGetSequenceStateMethodInfo
        ResolveGestureZoomMethod "getSequences" o = Gtk.Gesture.GestureGetSequencesMethodInfo
        ResolveGestureZoomMethod "getWidget" o = Gtk.EventController.EventControllerGetWidgetMethodInfo
        ResolveGestureZoomMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
        ResolveGestureZoomMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo
        ResolveGestureZoomMethod "setName" o = Gtk.EventController.EventControllerSetNameMethodInfo
        ResolveGestureZoomMethod "setPropagationLimit" o = Gtk.EventController.EventControllerSetPropagationLimitMethodInfo
        ResolveGestureZoomMethod "setPropagationPhase" o = Gtk.EventController.EventControllerSetPropagationPhaseMethodInfo
        ResolveGestureZoomMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo
        ResolveGestureZoomMethod "setSequenceState" o = Gtk.Gesture.GestureSetSequenceStateMethodInfo
        ResolveGestureZoomMethod "setState" o = Gtk.Gesture.GestureSetStateMethodInfo
        ResolveGestureZoomMethod "setStaticName" o = Gtk.EventController.EventControllerSetStaticNameMethodInfo
        ResolveGestureZoomMethod l o = O.MethodResolutionFailed l o

    instance (info ~ ResolveGestureZoomMethod t GestureZoom, O.OverloadedMethod info GestureZoom p) => OL.IsLabel t (GestureZoom -> p) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.overloadedMethod @info
    #else
        fromLabel _ = O.overloadedMethod @info
    #endif

    #if MIN_VERSION_base(4,13,0)
    instance (info ~ ResolveGestureZoomMethod t GestureZoom, O.OverloadedMethod info GestureZoom p, R.HasField t GestureZoom p) => R.HasField t GestureZoom p where
        getField = O.overloadedMethod @info

    #endif

    instance (info ~ ResolveGestureZoomMethod t GestureZoom, O.OverloadedMethodInfo info GestureZoom) => OL.IsLabel t (O.MethodProxy info GestureZoom) where
    #if MIN_VERSION_base(4,10,0)
        fromLabel = O.MethodProxy
    #else
        fromLabel _ = O.MethodProxy
    #endif

    #endif

    -- signal GestureZoom::scale-changed
    -- | Emitted whenever the distance between both tracked sequences changes.
    type GestureZoomScaleChangedCallback =
        Double
        -- ^ /@scale@/: Scale delta, taking the initial state as 1:1
        -> IO ()

    type C_GestureZoomScaleChangedCallback =
        Ptr GestureZoom ->                      -- object
        CDouble ->
        Ptr () ->                               -- user_data
        IO ()

    -- | Generate a function pointer callable from C code, from a `C_GestureZoomScaleChangedCallback`.
    foreign import ccall "wrapper"
        mk_GestureZoomScaleChangedCallback :: C_GestureZoomScaleChangedCallback -> IO (FunPtr C_GestureZoomScaleChangedCallback)

    wrap_GestureZoomScaleChangedCallback ::
        GObject a => (a -> GestureZoomScaleChangedCallback) ->
        C_GestureZoomScaleChangedCallback
    wrap_GestureZoomScaleChangedCallback :: forall a.
    GObject a =>
    (a -> GestureZoomScaleChangedCallback)
    -> C_GestureZoomScaleChangedCallback
    wrap_GestureZoomScaleChangedCallback a -> GestureZoomScaleChangedCallback
    gi'cb Ptr GestureZoom
    gi'selfPtr CDouble
    scale Ptr ()
    _ = do
        let scale' :: Double
    scale' = CDouble -> Double
    forall a b. (Real a, Fractional b) => a -> b
    realToFrac CDouble
    scale
        Ptr GestureZoom -> (GestureZoom -> IO ()) -> IO ()
    forall o b.
    (HasCallStack, GObject o) =>
    Ptr o -> (o -> IO b) -> IO b
    B.ManagedPtr.withNewObject Ptr GestureZoom
    gi'selfPtr ((GestureZoom -> IO ()) -> IO ())
    -> (GestureZoom -> IO ()) -> IO ()
    forall a b. (a -> b) -> a -> b
    $ \GestureZoom
    gi'self -> a -> GestureZoomScaleChangedCallback
    gi'cb (GestureZoom -> a
    forall a b. Coercible a b => a -> b
    Coerce.coerce GestureZoom
    gi'self)  Double
    scale'

    -- | Connect a signal handler for the [scaleChanged](#signal:scaleChanged) signal, to be run before the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.on' gestureZoom #scaleChanged callback
    -- @
    --
    --
    onGestureZoomScaleChanged :: (IsGestureZoom a, MonadIO m) => a -> ((?self :: a) => GestureZoomScaleChangedCallback) -> m SignalHandlerId
    onGestureZoomScaleChanged :: forall a (m :: * -> *).
    (IsGestureZoom a, MonadIO m) =>
    a
    -> ((?self::a) => GestureZoomScaleChangedCallback)
    -> m SignalHandlerId
    onGestureZoomScaleChanged a
    obj (?self::a) => GestureZoomScaleChangedCallback
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> GestureZoomScaleChangedCallback
    wrapped a
    self = let ?self = a
    ?self::a
    self in (?self::a) => GestureZoomScaleChangedCallback
    GestureZoomScaleChangedCallback
    cb
        let wrapped' :: C_GestureZoomScaleChangedCallback
    wrapped' = (a -> GestureZoomScaleChangedCallback)
    -> C_GestureZoomScaleChangedCallback
    forall a.
    GObject a =>
    (a -> GestureZoomScaleChangedCallback)
    -> C_GestureZoomScaleChangedCallback
    wrap_GestureZoomScaleChangedCallback a -> GestureZoomScaleChangedCallback
    wrapped
        wrapped'' <- C_GestureZoomScaleChangedCallback
    -> IO (FunPtr C_GestureZoomScaleChangedCallback)
    mk_GestureZoomScaleChangedCallback C_GestureZoomScaleChangedCallback
    wrapped'
        connectSignalFunPtr obj "scale-changed" wrapped'' SignalConnectBefore Nothing

    -- | Connect a signal handler for the [scaleChanged](#signal:scaleChanged) signal, to be run after the default handler.
    -- When <https://github.com/haskell-gi/haskell-gi/wiki/Overloading overloading> is enabled, this is equivalent to
    --
    -- @
    -- 'Data.GI.Base.Signals.after' gestureZoom #scaleChanged 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.
    --
    afterGestureZoomScaleChanged :: (IsGestureZoom a, MonadIO m) => a -> ((?self :: a) => GestureZoomScaleChangedCallback) -> m SignalHandlerId
    afterGestureZoomScaleChanged :: forall a (m :: * -> *).
    (IsGestureZoom a, MonadIO m) =>
    a
    -> ((?self::a) => GestureZoomScaleChangedCallback)
    -> m SignalHandlerId
    afterGestureZoomScaleChanged a
    obj (?self::a) => GestureZoomScaleChangedCallback
    cb = IO SignalHandlerId -> m SignalHandlerId
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO SignalHandlerId -> m SignalHandlerId)
    -> IO SignalHandlerId -> m SignalHandlerId
    forall a b. (a -> b) -> a -> b
    $ do
        let wrapped :: a -> GestureZoomScaleChangedCallback
    wrapped a
    self = let ?self = a
    ?self::a
    self in (?self::a) => GestureZoomScaleChangedCallback
    GestureZoomScaleChangedCallback
    cb
        let wrapped' :: C_GestureZoomScaleChangedCallback
    wrapped' = (a -> GestureZoomScaleChangedCallback)
    -> C_GestureZoomScaleChangedCallback
    forall a.
    GObject a =>
    (a -> GestureZoomScaleChangedCallback)
    -> C_GestureZoomScaleChangedCallback
    wrap_GestureZoomScaleChangedCallback a -> GestureZoomScaleChangedCallback
    wrapped
        wrapped'' <- C_GestureZoomScaleChangedCallback
    -> IO (FunPtr C_GestureZoomScaleChangedCallback)
    mk_GestureZoomScaleChangedCallback C_GestureZoomScaleChangedCallback
    wrapped'
        connectSignalFunPtr obj "scale-changed" wrapped'' SignalConnectAfter Nothing

    #if defined(ENABLE_OVERLOADING)
    data GestureZoomScaleChangedSignalInfo
    instance SignalInfo GestureZoomScaleChangedSignalInfo where
        type HaskellCallbackType GestureZoomScaleChangedSignalInfo = GestureZoomScaleChangedCallback
        connectSignal obj cb connectMode detail = do
            let cb' = wrap_GestureZoomScaleChangedCallback cb
            cb'' <- mk_GestureZoomScaleChangedCallback cb'
            connectSignalFunPtr obj "scale-changed" cb'' connectMode detail
        dbgSignalInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.GestureZoom::scale-changed"
            , O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-GestureZoom.html#g:signal:scaleChanged"})

    #endif

    #if defined(ENABLE_OVERLOADING)
    instance O.HasAttributeList GestureZoom
    type instance O.AttributeList GestureZoom = GestureZoomAttributeList
    type GestureZoomAttributeList = ('[ '("nPoints", Gtk.Gesture.GestureNPointsPropertyInfo), '("name", Gtk.EventController.EventControllerNamePropertyInfo), '("propagationLimit", Gtk.EventController.EventControllerPropagationLimitPropertyInfo), '("propagationPhase", Gtk.EventController.EventControllerPropagationPhasePropertyInfo), '("widget", Gtk.EventController.EventControllerWidgetPropertyInfo)] :: [(Symbol, DK.Type)])
    #endif

    #if defined(ENABLE_OVERLOADING)
    #endif

    #if defined(ENABLE_OVERLOADING)
    type instance O.SignalList GestureZoom = GestureZoomSignalList
    type GestureZoomSignalList = ('[ '("begin", Gtk.Gesture.GestureBeginSignalInfo), '("cancel", Gtk.Gesture.GestureCancelSignalInfo), '("end", Gtk.Gesture.GestureEndSignalInfo), '("notify", GObject.Object.ObjectNotifySignalInfo), '("scaleChanged", GestureZoomScaleChangedSignalInfo), '("sequenceStateChanged", Gtk.Gesture.GestureSequenceStateChangedSignalInfo), '("update", Gtk.Gesture.GestureUpdateSignalInfo)] :: [(Symbol, DK.Type)])

    #endif

    -- method GestureZoom::new
    -- method type : Constructor
    -- Args: []
    -- Lengths: []
    -- returnType: Just (TInterface Name { namespace = "Gtk" , name = "GestureZoom" })
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_gesture_zoom_new" gtk_gesture_zoom_new ::
        IO (Ptr GestureZoom)

    -- | Returns a newly created @GtkGesture@ that recognizes
    -- pinch\/zoom gestures.
    gestureZoomNew ::
        (B.CallStack.HasCallStack, MonadIO m) =>
        m GestureZoom
        -- ^ __Returns:__ a newly created @GtkGestureZoom@
    gestureZoomNew :: forall (m :: * -> *). (HasCallStack, MonadIO m) => m GestureZoom
    gestureZoomNew  = IO GestureZoom -> m GestureZoom
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO GestureZoom -> m GestureZoom)
    -> IO GestureZoom -> m GestureZoom
    forall a b. (a -> b) -> a -> b
    $ do
        result <- IO (Ptr GestureZoom)
    gtk_gesture_zoom_new
        checkUnexpectedReturnNULL "gestureZoomNew" result
        result' <- (wrapObject GestureZoom) result
        return result'

    #if defined(ENABLE_OVERLOADING)
    #endif

    -- method GestureZoom::get_scale_delta
    -- method type : OrdinaryMethod
    -- Args: [ Arg
    --           { argCName = "gesture"
    --           , argType =
    --               TInterface Name { namespace = "Gtk" , name = "GestureZoom" }
    --           , argCType = Just "GtkGestureZoom*"
    --           , direction = DirectionIn
    --           , mayBeNull = False
    --           , argDoc =
    --               Documentation
    --                 { rawDocText = Just "a `GtkGestureZoom`" , sinceVersion = Nothing }
    --           , argScope = ScopeTypeInvalid
    --           , argClosure = -1
    --           , argDestroy = -1
    --           , argCallerAllocates = False
    --           , argCallbackUserData = False
    --           , transfer = TransferNothing
    --           }
    --       ]
    -- Lengths: []
    -- returnType: Just (TBasicType TDouble)
    -- throws : False
    -- Skip return : False

    foreign import ccall "gtk_gesture_zoom_get_scale_delta" gtk_gesture_zoom_get_scale_delta ::
        Ptr GestureZoom ->                      -- gesture : TInterface (Name {namespace = "Gtk", name = "GestureZoom"})
        IO CDouble

    -- | Gets the scale delta.
    --
    -- If /@gesture@/ is active, this function returns the zooming
    -- difference since the gesture was recognized (hence the
    -- starting point is considered 1:1). If /@gesture@/ is not
    -- active, 1 is returned.
    gestureZoomGetScaleDelta ::
        (B.CallStack.HasCallStack, MonadIO m, IsGestureZoom a) =>
        a
        -- ^ /@gesture@/: a @GtkGestureZoom@
        -> m Double
        -- ^ __Returns:__ the scale delta
    gestureZoomGetScaleDelta :: forall (m :: * -> *) a.
    (HasCallStack, MonadIO m, IsGestureZoom a) =>
    a -> m Double
    gestureZoomGetScaleDelta a
    gesture = IO Double -> m Double
    forall a. IO a -> m a
    forall (m :: * -> *) a. MonadIO m => IO a -> m a
    liftIO (IO Double -> m Double) -> IO Double -> m Double
    forall a b. (a -> b) -> a -> b
    $ do
        gesture' <- a -> IO (Ptr GestureZoom)
    forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
    unsafeManagedPtrCastPtr a
    gesture
        result <- gtk_gesture_zoom_get_scale_delta gesture'
        let result' = CDouble -> Double
    forall a b. (Real a, Fractional b) => a -> b
    realToFrac CDouble
    result
        touchManagedPtr gesture
        return result'

    #if defined(ENABLE_OVERLOADING)
    data GestureZoomGetScaleDeltaMethodInfo
    instance (signature ~ (m Double), MonadIO m, IsGestureZoom a) => O.OverloadedMethod GestureZoomGetScaleDeltaMethodInfo a signature where
        overloadedMethod = gestureZoomGetScaleDelta

    instance O.OverloadedMethodInfo GestureZoomGetScaleDeltaMethodInfo a where
        overloadedMethodInfo = P.Just (O.ResolvedSymbolInfo {
            O.resolvedSymbolName = "GI.Gtk.Objects.GestureZoom.gestureZoomGetScaleDelta",
            O.resolvedSymbolURL = "https://hackage.haskell.org/package/gi-gtk4-4.0.12/docs/GI-Gtk-Objects-GestureZoom.html#v:gestureZoomGetScaleDelta"
            })

    #endif