{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (garetxe@gmail.com)

'GI.Gtk.Interfaces.TreeSortable.TreeSortable' is an interface to be implemented by tree models which
support sorting. The 'GI.Gtk.Objects.TreeView.TreeView' uses the methods provided by this interface
to sort the model.
-}

#define ENABLE_OVERLOADING (MIN_VERSION_haskell_gi_overloading(1,0,0) \
       && !defined(__HADDOCK_VERSION__))

module GI.Gtk.Interfaces.TreeSortable
    (

-- * Exported types
    TreeSortable(..)                        ,
    noTreeSortable                          ,
    IsTreeSortable                          ,
    toTreeSortable                          ,


 -- * Methods
-- ** getSortColumnId #method:getSortColumnId#

#if ENABLE_OVERLOADING
    TreeSortableGetSortColumnIdMethodInfo   ,
#endif
    treeSortableGetSortColumnId             ,


-- ** hasDefaultSortFunc #method:hasDefaultSortFunc#

#if ENABLE_OVERLOADING
    TreeSortableHasDefaultSortFuncMethodInfo,
#endif
    treeSortableHasDefaultSortFunc          ,


-- ** setDefaultSortFunc #method:setDefaultSortFunc#

#if ENABLE_OVERLOADING
    TreeSortableSetDefaultSortFuncMethodInfo,
#endif
    treeSortableSetDefaultSortFunc          ,


-- ** setSortColumnId #method:setSortColumnId#

#if ENABLE_OVERLOADING
    TreeSortableSetSortColumnIdMethodInfo   ,
#endif
    treeSortableSetSortColumnId             ,


-- ** setSortFunc #method:setSortFunc#

#if ENABLE_OVERLOADING
    TreeSortableSetSortFuncMethodInfo       ,
#endif
    treeSortableSetSortFunc                 ,


-- ** sortColumnChanged #method:sortColumnChanged#

#if ENABLE_OVERLOADING
    TreeSortableSortColumnChangedMethodInfo ,
#endif
    treeSortableSortColumnChanged           ,




 -- * Signals
-- ** sortColumnChanged #signal:sortColumnChanged#

    C_TreeSortableSortColumnChangedCallback ,
    TreeSortableSortColumnChangedCallback   ,
#if ENABLE_OVERLOADING
    TreeSortableSortColumnChangedSignalInfo ,
#endif
    afterTreeSortableSortColumnChanged      ,
    genClosure_TreeSortableSortColumnChanged,
    mk_TreeSortableSortColumnChangedCallback,
    noTreeSortableSortColumnChangedCallback ,
    onTreeSortableSortColumnChanged         ,
    wrap_TreeSortableSortColumnChangedCallback,




    ) 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.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GError as B.GError
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.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP

import qualified GI.GLib.Callbacks as GLib.Callbacks
import qualified GI.GObject.Objects.Object as GObject.Object
import qualified GI.Gtk.Callbacks as Gtk.Callbacks
import {-# SOURCE #-} qualified GI.Gtk.Enums as Gtk.Enums
import {-# SOURCE #-} qualified GI.Gtk.Interfaces.TreeModel as Gtk.TreeModel

-- interface TreeSortable 
-- | Memory-managed wrapper type.
newtype TreeSortable = TreeSortable (ManagedPtr TreeSortable)
-- | A convenience alias for `Nothing` :: `Maybe` `TreeSortable`.
noTreeSortable :: Maybe TreeSortable
noTreeSortable = Nothing

-- signal TreeSortable::sort-column-changed
{- |
The ::sort-column-changed signal is emitted when the sort column
or sort order of /@sortable@/ is changed. The signal is emitted before
the contents of /@sortable@/ are resorted.
-}
type TreeSortableSortColumnChangedCallback =
    IO ()

-- | A convenience synonym for @`Nothing` :: `Maybe` `TreeSortableSortColumnChangedCallback`@.
noTreeSortableSortColumnChangedCallback :: Maybe TreeSortableSortColumnChangedCallback
noTreeSortableSortColumnChangedCallback = Nothing

-- | Type for the callback on the (unwrapped) C side.
type C_TreeSortableSortColumnChangedCallback =
    Ptr () ->                               -- object
    Ptr () ->                               -- user_data
    IO ()

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

-- | Wrap the callback into a `Closure`.
genClosure_TreeSortableSortColumnChanged :: TreeSortableSortColumnChangedCallback -> IO Closure
genClosure_TreeSortableSortColumnChanged cb = do
    let cb' = wrap_TreeSortableSortColumnChangedCallback cb
    mk_TreeSortableSortColumnChangedCallback cb' >>= newCClosure


-- | Wrap a `TreeSortableSortColumnChangedCallback` into a `C_TreeSortableSortColumnChangedCallback`.
wrap_TreeSortableSortColumnChangedCallback ::
    TreeSortableSortColumnChangedCallback ->
    C_TreeSortableSortColumnChangedCallback
wrap_TreeSortableSortColumnChangedCallback _cb _ _ = do
    _cb


{- |
Connect a signal handler for the “@sort-column-changed@” 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' treeSortable #sortColumnChanged callback
@
-}
onTreeSortableSortColumnChanged :: (IsTreeSortable a, MonadIO m) => a -> TreeSortableSortColumnChangedCallback -> m SignalHandlerId
onTreeSortableSortColumnChanged obj cb = liftIO $ do
    let cb' = wrap_TreeSortableSortColumnChangedCallback cb
    cb'' <- mk_TreeSortableSortColumnChangedCallback cb'
    connectSignalFunPtr obj "sort-column-changed" cb'' SignalConnectBefore

{- |
Connect a signal handler for the “@sort-column-changed@” 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' treeSortable #sortColumnChanged callback
@
-}
afterTreeSortableSortColumnChanged :: (IsTreeSortable a, MonadIO m) => a -> TreeSortableSortColumnChangedCallback -> m SignalHandlerId
afterTreeSortableSortColumnChanged obj cb = liftIO $ do
    let cb' = wrap_TreeSortableSortColumnChangedCallback cb
    cb'' <- mk_TreeSortableSortColumnChangedCallback cb'
    connectSignalFunPtr obj "sort-column-changed" cb'' SignalConnectAfter


#if ENABLE_OVERLOADING
data TreeSortableSortColumnChangedSignalInfo
instance SignalInfo TreeSortableSortColumnChangedSignalInfo where
    type HaskellCallbackType TreeSortableSortColumnChangedSignalInfo = TreeSortableSortColumnChangedCallback
    connectSignal _ obj cb connectMode = do
        let cb' = wrap_TreeSortableSortColumnChangedCallback cb
        cb'' <- mk_TreeSortableSortColumnChangedCallback cb'
        connectSignalFunPtr obj "sort-column-changed" cb'' connectMode

type instance O.SignalList TreeSortable = TreeSortableSignalList
type TreeSortableSignalList = ('[ '("notify", GObject.Object.ObjectNotifySignalInfo), '("rowChanged", Gtk.TreeModel.TreeModelRowChangedSignalInfo), '("rowDeleted", Gtk.TreeModel.TreeModelRowDeletedSignalInfo), '("rowHasChildToggled", Gtk.TreeModel.TreeModelRowHasChildToggledSignalInfo), '("rowInserted", Gtk.TreeModel.TreeModelRowInsertedSignalInfo), '("sortColumnChanged", TreeSortableSortColumnChangedSignalInfo)] :: [(Symbol, *)])

#endif

foreign import ccall "gtk_tree_sortable_get_type"
    c_gtk_tree_sortable_get_type :: IO GType

instance GObject TreeSortable where
    gobjectType _ = c_gtk_tree_sortable_get_type


-- | Type class for types which can be safely cast to `TreeSortable`, for instance with `toTreeSortable`.
class GObject o => IsTreeSortable o
#if MIN_VERSION_base(4,9,0)
instance {-# OVERLAPPABLE #-} (GObject a, O.UnknownAncestorError TreeSortable a) =>
    IsTreeSortable a
#endif
instance IsTreeSortable TreeSortable
instance Gtk.TreeModel.IsTreeModel TreeSortable
instance GObject.Object.IsObject TreeSortable

-- | Cast to `TreeSortable`, for types for which this is known to be safe. For general casts, use `Data.GI.Base.ManagedPtr.castTo`.
toTreeSortable :: (MonadIO m, IsTreeSortable o) => o -> m TreeSortable
toTreeSortable = liftIO . unsafeCastTo TreeSortable

#if ENABLE_OVERLOADING
instance O.HasAttributeList TreeSortable
type instance O.AttributeList TreeSortable = TreeSortableAttributeList
type TreeSortableAttributeList = ('[ ] :: [(Symbol, *)])
#endif

#if ENABLE_OVERLOADING
#endif

#if ENABLE_OVERLOADING
type family ResolveTreeSortableMethod (t :: Symbol) (o :: *) :: * where
    ResolveTreeSortableMethod "bindProperty" o = GObject.Object.ObjectBindPropertyMethodInfo
    ResolveTreeSortableMethod "bindPropertyFull" o = GObject.Object.ObjectBindPropertyFullMethodInfo
    ResolveTreeSortableMethod "filterNew" o = Gtk.TreeModel.TreeModelFilterNewMethodInfo
    ResolveTreeSortableMethod "forceFloating" o = GObject.Object.ObjectForceFloatingMethodInfo
    ResolveTreeSortableMethod "foreach" o = Gtk.TreeModel.TreeModelForeachMethodInfo
    ResolveTreeSortableMethod "freezeNotify" o = GObject.Object.ObjectFreezeNotifyMethodInfo
    ResolveTreeSortableMethod "getv" o = GObject.Object.ObjectGetvMethodInfo
    ResolveTreeSortableMethod "hasDefaultSortFunc" o = TreeSortableHasDefaultSortFuncMethodInfo
    ResolveTreeSortableMethod "isFloating" o = GObject.Object.ObjectIsFloatingMethodInfo
    ResolveTreeSortableMethod "iterChildren" o = Gtk.TreeModel.TreeModelIterChildrenMethodInfo
    ResolveTreeSortableMethod "iterHasChild" o = Gtk.TreeModel.TreeModelIterHasChildMethodInfo
    ResolveTreeSortableMethod "iterNChildren" o = Gtk.TreeModel.TreeModelIterNChildrenMethodInfo
    ResolveTreeSortableMethod "iterNext" o = Gtk.TreeModel.TreeModelIterNextMethodInfo
    ResolveTreeSortableMethod "iterNthChild" o = Gtk.TreeModel.TreeModelIterNthChildMethodInfo
    ResolveTreeSortableMethod "iterParent" o = Gtk.TreeModel.TreeModelIterParentMethodInfo
    ResolveTreeSortableMethod "iterPrevious" o = Gtk.TreeModel.TreeModelIterPreviousMethodInfo
    ResolveTreeSortableMethod "notify" o = GObject.Object.ObjectNotifyMethodInfo
    ResolveTreeSortableMethod "notifyByPspec" o = GObject.Object.ObjectNotifyByPspecMethodInfo
    ResolveTreeSortableMethod "ref" o = GObject.Object.ObjectRefMethodInfo
    ResolveTreeSortableMethod "refNode" o = Gtk.TreeModel.TreeModelRefNodeMethodInfo
    ResolveTreeSortableMethod "refSink" o = GObject.Object.ObjectRefSinkMethodInfo
    ResolveTreeSortableMethod "rowChanged" o = Gtk.TreeModel.TreeModelRowChangedMethodInfo
    ResolveTreeSortableMethod "rowDeleted" o = Gtk.TreeModel.TreeModelRowDeletedMethodInfo
    ResolveTreeSortableMethod "rowHasChildToggled" o = Gtk.TreeModel.TreeModelRowHasChildToggledMethodInfo
    ResolveTreeSortableMethod "rowInserted" o = Gtk.TreeModel.TreeModelRowInsertedMethodInfo
    ResolveTreeSortableMethod "rowsReordered" o = Gtk.TreeModel.TreeModelRowsReorderedMethodInfo
    ResolveTreeSortableMethod "runDispose" o = GObject.Object.ObjectRunDisposeMethodInfo
    ResolveTreeSortableMethod "sortColumnChanged" o = TreeSortableSortColumnChangedMethodInfo
    ResolveTreeSortableMethod "sortNewWithModel" o = Gtk.TreeModel.TreeModelSortNewWithModelMethodInfo
    ResolveTreeSortableMethod "stealData" o = GObject.Object.ObjectStealDataMethodInfo
    ResolveTreeSortableMethod "stealQdata" o = GObject.Object.ObjectStealQdataMethodInfo
    ResolveTreeSortableMethod "thawNotify" o = GObject.Object.ObjectThawNotifyMethodInfo
    ResolveTreeSortableMethod "unref" o = GObject.Object.ObjectUnrefMethodInfo
    ResolveTreeSortableMethod "unrefNode" o = Gtk.TreeModel.TreeModelUnrefNodeMethodInfo
    ResolveTreeSortableMethod "watchClosure" o = GObject.Object.ObjectWatchClosureMethodInfo
    ResolveTreeSortableMethod "getColumnType" o = Gtk.TreeModel.TreeModelGetColumnTypeMethodInfo
    ResolveTreeSortableMethod "getData" o = GObject.Object.ObjectGetDataMethodInfo
    ResolveTreeSortableMethod "getFlags" o = Gtk.TreeModel.TreeModelGetFlagsMethodInfo
    ResolveTreeSortableMethod "getIter" o = Gtk.TreeModel.TreeModelGetIterMethodInfo
    ResolveTreeSortableMethod "getIterFirst" o = Gtk.TreeModel.TreeModelGetIterFirstMethodInfo
    ResolveTreeSortableMethod "getIterFromString" o = Gtk.TreeModel.TreeModelGetIterFromStringMethodInfo
    ResolveTreeSortableMethod "getNColumns" o = Gtk.TreeModel.TreeModelGetNColumnsMethodInfo
    ResolveTreeSortableMethod "getPath" o = Gtk.TreeModel.TreeModelGetPathMethodInfo
    ResolveTreeSortableMethod "getProperty" o = GObject.Object.ObjectGetPropertyMethodInfo
    ResolveTreeSortableMethod "getQdata" o = GObject.Object.ObjectGetQdataMethodInfo
    ResolveTreeSortableMethod "getSortColumnId" o = TreeSortableGetSortColumnIdMethodInfo
    ResolveTreeSortableMethod "getStringFromIter" o = Gtk.TreeModel.TreeModelGetStringFromIterMethodInfo
    ResolveTreeSortableMethod "getValue" o = Gtk.TreeModel.TreeModelGetValueMethodInfo
    ResolveTreeSortableMethod "setData" o = GObject.Object.ObjectSetDataMethodInfo
    ResolveTreeSortableMethod "setDefaultSortFunc" o = TreeSortableSetDefaultSortFuncMethodInfo
    ResolveTreeSortableMethod "setProperty" o = GObject.Object.ObjectSetPropertyMethodInfo
    ResolveTreeSortableMethod "setSortColumnId" o = TreeSortableSetSortColumnIdMethodInfo
    ResolveTreeSortableMethod "setSortFunc" o = TreeSortableSetSortFuncMethodInfo
    ResolveTreeSortableMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolveTreeSortableMethod t TreeSortable, O.MethodInfo info TreeSortable p) => O.IsLabelProxy t (TreeSortable -> p) where
    fromLabelProxy _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)

#if MIN_VERSION_base(4,9,0)
instance (info ~ ResolveTreeSortableMethod t TreeSortable, O.MethodInfo info TreeSortable p) => O.IsLabel t (TreeSortable -> p) where
#if MIN_VERSION_base(4,10,0)
    fromLabel = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#else
    fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#endif
#endif

#endif

-- method TreeSortable::get_sort_column_id
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "sort_column_id", argType = TBasicType TInt, direction = DirectionOut, mayBeNull = False, argDoc = Documentation {rawDocText = Just "The sort column id to be filled in", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything},Arg {argCName = "order", argType = TInterface (Name {namespace = "Gtk", name = "SortType"}), direction = DirectionOut, mayBeNull = False, argDoc = Documentation {rawDocText = Just "The #GtkSortType to be filled in", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferEverything}]
-- Lengths : []
-- returnType : Just (TBasicType TBoolean)
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_get_sort_column_id" gtk_tree_sortable_get_sort_column_id ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    Ptr Int32 ->                            -- sort_column_id : TBasicType TInt
    Ptr CUInt ->                            -- order : TInterface (Name {namespace = "Gtk", name = "SortType"})
    IO CInt

{- |
Fills in /@sortColumnId@/ and /@order@/ with the current sort column and the
order. It returns 'True' unless the /@sortColumnId@/ is
'GI.Gtk.Constants.TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID' or
'GI.Gtk.Constants.TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID'.
-}
treeSortableGetSortColumnId ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> m ((Bool, Int32, Gtk.Enums.SortType))
    {- ^ __Returns:__ 'True' if the sort column is not one of the special sort
  column ids. -}
treeSortableGetSortColumnId sortable = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    sortColumnId <- allocMem :: IO (Ptr Int32)
    order <- allocMem :: IO (Ptr CUInt)
    result <- gtk_tree_sortable_get_sort_column_id sortable' sortColumnId order
    let result' = (/= 0) result
    sortColumnId' <- peek sortColumnId
    order' <- peek order
    let order'' = (toEnum . fromIntegral) order'
    touchManagedPtr sortable
    freeMem sortColumnId
    freeMem order
    return (result', sortColumnId', order'')

#if ENABLE_OVERLOADING
data TreeSortableGetSortColumnIdMethodInfo
instance (signature ~ (m ((Bool, Int32, Gtk.Enums.SortType))), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableGetSortColumnIdMethodInfo a signature where
    overloadedMethod _ = treeSortableGetSortColumnId

#endif

-- method TreeSortable::has_default_sort_func
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Just (TBasicType TBoolean)
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_has_default_sort_func" gtk_tree_sortable_has_default_sort_func ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    IO CInt

{- |
Returns 'True' if the model has a default sort function. This is used
primarily by GtkTreeViewColumns in order to determine if a model can
go back to the default state, or not.
-}
treeSortableHasDefaultSortFunc ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> m Bool
    {- ^ __Returns:__ 'True', if the model has a default sort function -}
treeSortableHasDefaultSortFunc sortable = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    result <- gtk_tree_sortable_has_default_sort_func sortable'
    let result' = (/= 0) result
    touchManagedPtr sortable
    return result'

#if ENABLE_OVERLOADING
data TreeSortableHasDefaultSortFuncMethodInfo
instance (signature ~ (m Bool), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableHasDefaultSortFuncMethodInfo a signature where
    overloadedMethod _ = treeSortableHasDefaultSortFunc

#endif

-- method TreeSortable::set_default_sort_func
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "sort_func", argType = TInterface (Name {namespace = "Gtk", name = "TreeIterCompareFunc"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "The comparison function", sinceVersion = Nothing}, argScope = ScopeTypeNotified, argClosure = 2, argDestroy = 3, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "user_data", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "User data to pass to @sort_func, or %NULL", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "destroy", argType = TInterface (Name {namespace = "GLib", name = "DestroyNotify"}), direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "Destroy notifier of @user_data, or %NULL", sinceVersion = Nothing}, argScope = ScopeTypeAsync, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_set_default_sort_func" gtk_tree_sortable_set_default_sort_func ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    FunPtr Gtk.Callbacks.C_TreeIterCompareFunc -> -- sort_func : TInterface (Name {namespace = "Gtk", name = "TreeIterCompareFunc"})
    Ptr () ->                               -- user_data : TBasicType TPtr
    FunPtr GLib.Callbacks.C_DestroyNotify -> -- destroy : TInterface (Name {namespace = "GLib", name = "DestroyNotify"})
    IO ()

{- |
Sets the default comparison function used when sorting to be /@sortFunc@/.
If the current sort column id of /@sortable@/ is
'GI.Gtk.Constants.TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID', then the model will sort using
this function.

If /@sortFunc@/ is 'Nothing', then there will be no default comparison function.
This means that once the model  has been sorted, it can’t go back to the
default state. In this case, when the current sort column id of /@sortable@/
is 'GI.Gtk.Constants.TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID', the model will be unsorted.
-}
treeSortableSetDefaultSortFunc ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> Gtk.Callbacks.TreeIterCompareFunc
    {- ^ /@sortFunc@/: The comparison function -}
    -> m ()
treeSortableSetDefaultSortFunc sortable sortFunc = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    sortFunc' <- Gtk.Callbacks.mk_TreeIterCompareFunc (Gtk.Callbacks.wrap_TreeIterCompareFunc Nothing (Gtk.Callbacks.drop_closures_TreeIterCompareFunc sortFunc))
    let userData = castFunPtrToPtr sortFunc'
    let destroy = safeFreeFunPtrPtr
    gtk_tree_sortable_set_default_sort_func sortable' sortFunc' userData destroy
    touchManagedPtr sortable
    return ()

#if ENABLE_OVERLOADING
data TreeSortableSetDefaultSortFuncMethodInfo
instance (signature ~ (Gtk.Callbacks.TreeIterCompareFunc -> m ()), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableSetDefaultSortFuncMethodInfo a signature where
    overloadedMethod _ = treeSortableSetDefaultSortFunc

#endif

-- method TreeSortable::set_sort_column_id
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "sort_column_id", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the sort column id to set", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "order", argType = TInterface (Name {namespace = "Gtk", name = "SortType"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "The sort order of the column", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_set_sort_column_id" gtk_tree_sortable_set_sort_column_id ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    Int32 ->                                -- sort_column_id : TBasicType TInt
    CUInt ->                                -- order : TInterface (Name {namespace = "Gtk", name = "SortType"})
    IO ()

{- |
Sets the current sort column to be /@sortColumnId@/. The /@sortable@/ will
resort itself to reflect this change, after emitting a
'GI.Gtk.Interfaces.TreeSortable.TreeSortable'::@/sort-column-changed/@ signal. /@sortColumnId@/ may either be
a regular column id, or one of the following special values:

* 'GI.Gtk.Constants.TREE_SORTABLE_DEFAULT_SORT_COLUMN_ID': the default sort function
will be used, if it is set
* 'GI.Gtk.Constants.TREE_SORTABLE_UNSORTED_SORT_COLUMN_ID': no sorting will occur
-}
treeSortableSetSortColumnId ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> Int32
    {- ^ /@sortColumnId@/: the sort column id to set -}
    -> Gtk.Enums.SortType
    {- ^ /@order@/: The sort order of the column -}
    -> m ()
treeSortableSetSortColumnId sortable sortColumnId order = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    let order' = (fromIntegral . fromEnum) order
    gtk_tree_sortable_set_sort_column_id sortable' sortColumnId order'
    touchManagedPtr sortable
    return ()

#if ENABLE_OVERLOADING
data TreeSortableSetSortColumnIdMethodInfo
instance (signature ~ (Int32 -> Gtk.Enums.SortType -> m ()), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableSetSortColumnIdMethodInfo a signature where
    overloadedMethod _ = treeSortableSetSortColumnId

#endif

-- method TreeSortable::set_sort_func
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "sort_column_id", argType = TBasicType TInt, direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "the sort column id to set the function for", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "sort_func", argType = TInterface (Name {namespace = "Gtk", name = "TreeIterCompareFunc"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "The comparison function", sinceVersion = Nothing}, argScope = ScopeTypeNotified, argClosure = 3, argDestroy = 4, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "user_data", argType = TBasicType TPtr, direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "User data to pass to @sort_func, or %NULL", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing},Arg {argCName = "destroy", argType = TInterface (Name {namespace = "GLib", name = "DestroyNotify"}), direction = DirectionIn, mayBeNull = True, argDoc = Documentation {rawDocText = Just "Destroy notifier of @user_data, or %NULL", sinceVersion = Nothing}, argScope = ScopeTypeAsync, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_set_sort_func" gtk_tree_sortable_set_sort_func ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    Int32 ->                                -- sort_column_id : TBasicType TInt
    FunPtr Gtk.Callbacks.C_TreeIterCompareFunc -> -- sort_func : TInterface (Name {namespace = "Gtk", name = "TreeIterCompareFunc"})
    Ptr () ->                               -- user_data : TBasicType TPtr
    FunPtr GLib.Callbacks.C_DestroyNotify -> -- destroy : TInterface (Name {namespace = "GLib", name = "DestroyNotify"})
    IO ()

{- |
Sets the comparison function used when sorting to be /@sortFunc@/. If the
current sort column id of /@sortable@/ is the same as /@sortColumnId@/, then
the model will sort using this function.
-}
treeSortableSetSortFunc ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> Int32
    {- ^ /@sortColumnId@/: the sort column id to set the function for -}
    -> Gtk.Callbacks.TreeIterCompareFunc
    {- ^ /@sortFunc@/: The comparison function -}
    -> m ()
treeSortableSetSortFunc sortable sortColumnId sortFunc = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    sortFunc' <- Gtk.Callbacks.mk_TreeIterCompareFunc (Gtk.Callbacks.wrap_TreeIterCompareFunc Nothing (Gtk.Callbacks.drop_closures_TreeIterCompareFunc sortFunc))
    let userData = castFunPtrToPtr sortFunc'
    let destroy = safeFreeFunPtrPtr
    gtk_tree_sortable_set_sort_func sortable' sortColumnId sortFunc' userData destroy
    touchManagedPtr sortable
    return ()

#if ENABLE_OVERLOADING
data TreeSortableSetSortFuncMethodInfo
instance (signature ~ (Int32 -> Gtk.Callbacks.TreeIterCompareFunc -> m ()), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableSetSortFuncMethodInfo a signature where
    overloadedMethod _ = treeSortableSetSortFunc

#endif

-- method TreeSortable::sort_column_changed
-- method type : OrdinaryMethod
-- Args : [Arg {argCName = "sortable", argType = TInterface (Name {namespace = "Gtk", name = "TreeSortable"}), direction = DirectionIn, mayBeNull = False, argDoc = Documentation {rawDocText = Just "A #GtkTreeSortable", sinceVersion = Nothing}, argScope = ScopeTypeInvalid, argClosure = -1, argDestroy = -1, argCallerAllocates = False, transfer = TransferNothing}]
-- Lengths : []
-- returnType : Nothing
-- throws : False
-- Skip return : False

foreign import ccall "gtk_tree_sortable_sort_column_changed" gtk_tree_sortable_sort_column_changed ::
    Ptr TreeSortable ->                     -- sortable : TInterface (Name {namespace = "Gtk", name = "TreeSortable"})
    IO ()

{- |
Emits a 'GI.Gtk.Interfaces.TreeSortable.TreeSortable'::@/sort-column-changed/@ signal on /@sortable@/.
-}
treeSortableSortColumnChanged ::
    (B.CallStack.HasCallStack, MonadIO m, IsTreeSortable a) =>
    a
    {- ^ /@sortable@/: A 'GI.Gtk.Interfaces.TreeSortable.TreeSortable' -}
    -> m ()
treeSortableSortColumnChanged sortable = liftIO $ do
    sortable' <- unsafeManagedPtrCastPtr sortable
    gtk_tree_sortable_sort_column_changed sortable'
    touchManagedPtr sortable
    return ()

#if ENABLE_OVERLOADING
data TreeSortableSortColumnChangedMethodInfo
instance (signature ~ (m ()), MonadIO m, IsTreeSortable a) => O.MethodInfo TreeSortableSortColumnChangedMethodInfo a signature where
    overloadedMethod _ = treeSortableSortColumnChanged

#endif