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


-- | Copyright  : Will Thompson and Iñaki García Etxebarria
-- License    : LGPL-2.1
-- Maintainer : Iñaki García Etxebarria
-- 
-- t'GI.Gtk.Objects.GestureZoom.GestureZoom' is a t'GI.Gtk.Objects.Gesture.Gesture' implementation able to recognize
-- 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 (MIN_VERSION_haskell_gi_overloading(1,0,0) && !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"), [handleEvent]("GI.Gtk.Objects.EventController#g:method:handleEvent"), [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"), [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"), [getPoint]("GI.Gtk.Objects.Gesture#g:method:getPoint"), [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"), [getWindow]("GI.Gtk.Objects.Gesture#g:method:getWindow").
-- 
-- ==== Setters
-- [setData]("GI.GObject.Objects.Object#g:method:setData"), [setDataFull]("GI.GObject.Objects.Object#g:method:setDataFull"), [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"), [setWindow]("GI.Gtk.Objects.Gesture#g:method:setWindow").

#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.Atk.Interfaces.ImplementorIface as Atk.ImplementorIface
import qualified GI.Atk.Objects.Object as Atk.Object
import qualified GI.Cairo.Structs.Context as Cairo.Context
import qualified GI.Cairo.Structs.FontOptions as Cairo.FontOptions
import qualified GI.Cairo.Structs.Region as Cairo.Region
import qualified GI.Cairo.Structs.Surface as Cairo.Surface
import qualified GI.GLib.Callbacks as GLib.Callbacks
import qualified GI.GLib.Structs.MarkupParser as GLib.MarkupParser
import qualified GI.GObject.Callbacks as GObject.Callbacks
import qualified GI.GObject.Objects.Object as GObject.Object
import qualified GI.Gdk.Enums as Gdk.Enums
import qualified GI.Gdk.Flags as Gdk.Flags
import qualified GI.Gdk.Objects.Device as Gdk.Device
import qualified GI.Gdk.Objects.Display as Gdk.Display
import qualified GI.Gdk.Objects.DragContext as Gdk.DragContext
import qualified GI.Gdk.Objects.FrameClock as Gdk.FrameClock
import qualified GI.Gdk.Objects.Screen as Gdk.Screen
import qualified GI.Gdk.Objects.Visual as Gdk.Visual
import qualified GI.Gdk.Objects.Window as Gdk.Window
import qualified GI.Gdk.Structs.Atom as Gdk.Atom
import qualified GI.Gdk.Structs.Color as Gdk.Color
import qualified GI.Gdk.Structs.EventAny as Gdk.EventAny
import qualified GI.Gdk.Structs.EventButton as Gdk.EventButton
import qualified GI.Gdk.Structs.EventConfigure as Gdk.EventConfigure
import qualified GI.Gdk.Structs.EventCrossing as Gdk.EventCrossing
import qualified GI.Gdk.Structs.EventExpose as Gdk.EventExpose
import qualified GI.Gdk.Structs.EventFocus as Gdk.EventFocus
import qualified GI.Gdk.Structs.EventGrabBroken as Gdk.EventGrabBroken
import qualified GI.Gdk.Structs.EventKey as Gdk.EventKey
import qualified GI.Gdk.Structs.EventMotion as Gdk.EventMotion
import qualified GI.Gdk.Structs.EventOwnerChange as Gdk.EventOwnerChange
import qualified GI.Gdk.Structs.EventProperty as Gdk.EventProperty
import qualified GI.Gdk.Structs.EventProximity as Gdk.EventProximity
import qualified GI.Gdk.Structs.EventScroll as Gdk.EventScroll
import qualified GI.Gdk.Structs.EventSelection as Gdk.EventSelection
import qualified GI.Gdk.Structs.EventSequence as Gdk.EventSequence
import qualified GI.Gdk.Structs.EventVisibility as Gdk.EventVisibility
import qualified GI.Gdk.Structs.EventWindowState as Gdk.EventWindowState
import qualified GI.Gdk.Structs.Geometry as Gdk.Geometry
import qualified GI.Gdk.Structs.RGBA as Gdk.RGBA
import qualified GI.Gdk.Structs.Rectangle as Gdk.Rectangle
import qualified GI.Gdk.Unions.Event as Gdk.Event
import qualified GI.GdkPixbuf.Objects.Pixbuf as GdkPixbuf.Pixbuf
import qualified GI.Gio.Flags as Gio.Flags
import qualified GI.Gio.Interfaces.ActionGroup as Gio.ActionGroup
import qualified GI.Gio.Interfaces.ActionMap as Gio.ActionMap
import qualified GI.Gio.Interfaces.File as Gio.File
import qualified GI.Gio.Interfaces.Icon as Gio.Icon
import qualified GI.Gio.Objects.Application as Gio.Application
import qualified GI.Gio.Objects.Menu as Gio.Menu
import qualified GI.Gio.Objects.MenuModel as Gio.MenuModel
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.Buildable as Gtk.Buildable
import {-# SOURCE #-} qualified GI.Gtk.Interfaces.StyleProvider as Gtk.StyleProvider
import {-# SOURCE #-} qualified GI.Gtk.Objects.AccelGroup as Gtk.AccelGroup
import {-# SOURCE #-} qualified GI.Gtk.Objects.Adjustment as Gtk.Adjustment
import {-# SOURCE #-} qualified GI.Gtk.Objects.Application as Gtk.Application
import {-# SOURCE #-} qualified GI.Gtk.Objects.Bin as Gtk.Bin
import {-# SOURCE #-} qualified GI.Gtk.Objects.Builder as Gtk.Builder
import {-# SOURCE #-} qualified GI.Gtk.Objects.Clipboard as Gtk.Clipboard
import {-# SOURCE #-} qualified GI.Gtk.Objects.Container as Gtk.Container
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.IconFactory as Gtk.IconFactory
import {-# SOURCE #-} qualified GI.Gtk.Objects.RcStyle as Gtk.RcStyle
import {-# SOURCE #-} qualified GI.Gtk.Objects.Settings as Gtk.Settings
import {-# SOURCE #-} qualified GI.Gtk.Objects.Style as Gtk.Style
import {-# SOURCE #-} qualified GI.Gtk.Objects.StyleContext as Gtk.StyleContext
import {-# SOURCE #-} qualified GI.Gtk.Objects.StyleProperties as Gtk.StyleProperties
import {-# SOURCE #-} qualified GI.Gtk.Objects.TextBuffer as Gtk.TextBuffer
import {-# SOURCE #-} qualified GI.Gtk.Objects.TextChildAnchor as Gtk.TextChildAnchor
import {-# SOURCE #-} qualified GI.Gtk.Objects.TextMark as Gtk.TextMark
import {-# SOURCE #-} qualified GI.Gtk.Objects.TextTag as Gtk.TextTag
import {-# SOURCE #-} qualified GI.Gtk.Objects.TextTagTable as Gtk.TextTagTable
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.Objects.Window as Gtk.Window
import {-# SOURCE #-} qualified GI.Gtk.Objects.WindowGroup as Gtk.WindowGroup
import {-# SOURCE #-} qualified GI.Gtk.Structs.AccelGroupEntry as Gtk.AccelGroupEntry
import {-# SOURCE #-} qualified GI.Gtk.Structs.AccelKey as Gtk.AccelKey
import {-# SOURCE #-} qualified GI.Gtk.Structs.Border as Gtk.Border
import {-# SOURCE #-} qualified GI.Gtk.Structs.CssSection as Gtk.CssSection
import {-# SOURCE #-} qualified GI.Gtk.Structs.IconSet as Gtk.IconSet
import {-# SOURCE #-} qualified GI.Gtk.Structs.IconSource as Gtk.IconSource
import {-# SOURCE #-} qualified GI.Gtk.Structs.Requisition as Gtk.Requisition
import {-# SOURCE #-} qualified GI.Gtk.Structs.SelectionData as Gtk.SelectionData
import {-# SOURCE #-} qualified GI.Gtk.Structs.SettingsValue as Gtk.SettingsValue
import {-# SOURCE #-} qualified GI.Gtk.Structs.SymbolicColor as Gtk.SymbolicColor
import {-# SOURCE #-} qualified GI.Gtk.Structs.TargetEntry as Gtk.TargetEntry
import {-# SOURCE #-} qualified GI.Gtk.Structs.TargetList as Gtk.TargetList
import {-# SOURCE #-} qualified GI.Gtk.Structs.TextAppearance as Gtk.TextAppearance
import {-# SOURCE #-} qualified GI.Gtk.Structs.TextAttributes as Gtk.TextAttributes
import {-# SOURCE #-} qualified GI.Gtk.Structs.TextIter as Gtk.TextIter
import {-# SOURCE #-} qualified GI.Gtk.Structs.WidgetPath as Gtk.WidgetPath
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
import qualified GI.Pango.Structs.FontDescription as Pango.FontDescription
import qualified GI.Pango.Structs.Language as Pango.Language
import qualified GI.Pango.Structs.TabArray as Pango.TabArray

#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
import {-# SOURCE #-} qualified GI.Gtk.Objects.Widget as Gtk.Widget

#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 `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 `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 'GestureZoom' to and from '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 GestureZoom
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 GestureZoom
ptr Ptr GestureZoom -> Ptr GestureZoom -> Bool
forall a. Eq a => a -> a -> Bool
/= Ptr GestureZoom
forall a. Ptr a
FP.nullPtr
        then GestureZoom -> Maybe GestureZoom
forall a. a -> Maybe a
P.Just (GestureZoom -> Maybe GestureZoom)
-> IO GestureZoom -> IO (Maybe GestureZoom)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (ManagedPtr GestureZoom -> GestureZoom)
-> Ptr GestureZoom -> IO GestureZoom
forall a b.
(HasCallStack, GObject a, GObject b) =>
(ManagedPtr a -> a) -> Ptr b -> IO a
B.ManagedPtr.newObject ManagedPtr GestureZoom -> GestureZoom
GestureZoom Ptr GestureZoom
ptr
        else Maybe GestureZoom -> IO (Maybe GestureZoom)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe GestureZoom
forall a. Maybe a
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 "handleEvent" o = Gtk.EventController.EventControllerHandleEventMethodInfo
    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 "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 "getPoint" o = Gtk.Gesture.GestureGetPointMethodInfo
    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 "getWindow" o = Gtk.Gesture.GestureGetWindowMethodInfo
    ResolveGestureZoomMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
    ResolveGestureZoomMethod "setDataFull" o = GObject.Object.ObjectSetDataFullMethodInfo
    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 "setWindow" o = Gtk.Gesture.GestureSetWindowMethodInfo
    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
-- | This signal is emitted whenever the distance between both tracked
-- sequences changes.
-- 
-- /Since: 3.14/
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
    FunPtr C_GestureZoomScaleChangedCallback
wrapped'' <- C_GestureZoomScaleChangedCallback
-> IO (FunPtr C_GestureZoomScaleChangedCallback)
mk_GestureZoomScaleChangedCallback C_GestureZoomScaleChangedCallback
wrapped'
    a
-> Text
-> FunPtr C_GestureZoomScaleChangedCallback
-> SignalConnectMode
-> Maybe Text
-> IO SignalHandlerId
forall o a.
GObject o =>
o
-> Text
-> FunPtr a
-> SignalConnectMode
-> Maybe Text
-> IO SignalHandlerId
connectSignalFunPtr a
obj Text
"scale-changed" FunPtr C_GestureZoomScaleChangedCallback
wrapped'' SignalConnectMode
SignalConnectBefore Maybe Text
forall a. Maybe a
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
    FunPtr C_GestureZoomScaleChangedCallback
wrapped'' <- C_GestureZoomScaleChangedCallback
-> IO (FunPtr C_GestureZoomScaleChangedCallback)
mk_GestureZoomScaleChangedCallback C_GestureZoomScaleChangedCallback
wrapped'
    a
-> Text
-> FunPtr C_GestureZoomScaleChangedCallback
-> SignalConnectMode
-> Maybe Text
-> IO SignalHandlerId
forall o a.
GObject o =>
o
-> Text
-> FunPtr a
-> SignalConnectMode
-> Maybe Text
-> IO SignalHandlerId
connectSignalFunPtr a
obj Text
"scale-changed" FunPtr C_GestureZoomScaleChangedCallback
wrapped'' SignalConnectMode
SignalConnectAfter Maybe Text
forall a. Maybe a
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-gtk-3.0.43/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), '("propagationPhase", Gtk.EventController.EventControllerPropagationPhasePropertyInfo), '("widget", Gtk.EventController.EventControllerWidgetPropertyInfo), '("window", Gtk.Gesture.GestureWindowPropertyInfo)] :: [(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: [ Arg
--           { argCName = "widget"
--           , argType = TInterface Name { namespace = "Gtk" , name = "Widget" }
--           , direction = DirectionIn
--           , mayBeNull = False
--           , argDoc =
--               Documentation
--                 { rawDocText = Just "a #GtkWidget" , sinceVersion = Nothing }
--           , argScope = ScopeTypeInvalid
--           , argClosure = -1
--           , argDestroy = -1
--           , argCallerAllocates = False
--           , argCallbackUserData = False
--           , transfer = TransferNothing
--           }
--       ]
-- 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 :: 
    Ptr Gtk.Widget.Widget ->                -- widget : TInterface (Name {namespace = "Gtk", name = "Widget"})
    IO (Ptr GestureZoom)

-- | Returns a newly created t'GI.Gtk.Objects.Gesture.Gesture' that recognizes zoom
-- in\/out gestures (usually known as pinch\/zoom).
-- 
-- /Since: 3.14/
gestureZoomNew ::
    (B.CallStack.HasCallStack, MonadIO m, Gtk.Widget.IsWidget a) =>
    a
    -- ^ /@widget@/: a t'GI.Gtk.Objects.Widget.Widget'
    -> m GestureZoom
    -- ^ __Returns:__ a newly created t'GI.Gtk.Objects.GestureZoom.GestureZoom'
gestureZoomNew :: forall (m :: * -> *) a.
(HasCallStack, MonadIO m, IsWidget a) =>
a -> m GestureZoom
gestureZoomNew a
widget = 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
    Ptr Widget
widget' <- a -> IO (Ptr Widget)
forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
unsafeManagedPtrCastPtr a
widget
    Ptr GestureZoom
result <- Ptr Widget -> IO (Ptr GestureZoom)
gtk_gesture_zoom_new Ptr Widget
widget'
    Text -> Ptr GestureZoom -> IO ()
forall a. HasCallStack => Text -> Ptr a -> IO ()
checkUnexpectedReturnNULL Text
"gestureZoomNew" Ptr GestureZoom
result
    GestureZoom
result' <- ((ManagedPtr GestureZoom -> GestureZoom)
-> Ptr GestureZoom -> IO GestureZoom
forall a b.
(HasCallStack, GObject a, GObject b) =>
(ManagedPtr a -> a) -> Ptr b -> IO a
wrapObject ManagedPtr GestureZoom -> GestureZoom
GestureZoom) Ptr GestureZoom
result
    a -> IO ()
forall a. ManagedPtrNewtype a => a -> IO ()
touchManagedPtr a
widget
    GestureZoom -> IO GestureZoom
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return GestureZoom
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" }
--           , 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

-- | 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.
-- 
-- /Since: 3.14/
gestureZoomGetScaleDelta ::
    (B.CallStack.HasCallStack, MonadIO m, IsGestureZoom a) =>
    a
    -- ^ /@gesture@/: a t'GI.Gtk.Objects.GestureZoom.GestureZoom'
    -> 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
    Ptr GestureZoom
gesture' <- a -> IO (Ptr GestureZoom)
forall a b. (HasCallStack, ManagedPtrNewtype a) => a -> IO (Ptr b)
unsafeManagedPtrCastPtr a
gesture
    CDouble
result <- Ptr GestureZoom -> IO CDouble
gtk_gesture_zoom_get_scale_delta Ptr GestureZoom
gesture'
    let result' :: Double
result' = CDouble -> Double
forall a b. (Real a, Fractional b) => a -> b
realToFrac CDouble
result
    a -> IO ()
forall a. ManagedPtrNewtype a => a -> IO ()
touchManagedPtr a
gesture
    Double -> IO Double
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Double
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-gtk-3.0.43/docs/GI-Gtk-Objects-GestureZoom.html#v:gestureZoomGetScaleDelta"
        })


#endif