Copyright	Will Thompson Iñaki García Etxebarria and Jonas Platte
License	LGPL-2.1
Maintainer	Iñaki García Etxebarria
Safe Haskell	Safe-Inferred
Language	Haskell2010

GI.Gtk.Objects.PropertyExpression

Contents

Exported types
Methods

Description

No description available in the introspection data.

Synopsis

newtype PropertyExpression = PropertyExpression (ManagedPtr PropertyExpression)
class (BoxedPtr o, TypedObject o, IsDescendantOf PropertyExpression o) => IsPropertyExpression o
toPropertyExpression :: (MonadIO m, IsPropertyExpression o) => o -> m PropertyExpression
propertyExpressionGetExpression :: (HasCallStack, MonadIO m, IsPropertyExpression a) => a -> m Expression
propertyExpressionGetPspec :: (HasCallStack, MonadIO m, IsPropertyExpression a) => a -> m GParamSpec
propertyExpressionNew :: (HasCallStack, MonadIO m, IsExpression a) => GType -> Maybe a -> Text -> m Expression
propertyExpressionNewForPspec :: (HasCallStack, MonadIO m, IsExpression a) => Maybe a -> GParamSpec -> m Expression

Exported types

newtype PropertyExpression Source #

Memory-managed wrapper type.

Constructors

PropertyExpression (ManagedPtr PropertyExpression)

Instances

Instances details

Eq PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression Methods (==) :: PropertyExpression -> PropertyExpression -> Bool # (/=) :: PropertyExpression -> PropertyExpression -> Bool #
BoxedPtr PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression Methods boxedPtrCopy :: PropertyExpression -> IO PropertyExpression boxedPtrFree :: PropertyExpression -> IO ()
ManagedPtrNewtype PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression Methods toManagedPtr :: PropertyExpression -> ManagedPtr PropertyExpression
TypedObject PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression Methods glibType :: IO GType
HasParentTypes PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression
type ParentTypes PropertyExpression Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression type ParentTypes PropertyExpression = '[Expression]

class (BoxedPtr o, TypedObject o, IsDescendantOf PropertyExpression o) => IsPropertyExpression o Source #

Type class for types which can be safely cast to PropertyExpression, for instance with toPropertyExpression.

Instances

Instances details

(BoxedPtr o, TypedObject o, IsDescendantOf PropertyExpression o) => IsPropertyExpression o Source #
Instance details Defined in GI.Gtk.Objects.PropertyExpression

toPropertyExpression :: (MonadIO m, IsPropertyExpression o) => o -> m PropertyExpression Source #

Cast to PropertyExpression, for types for which this is known to be safe. For general casts, use castTo.

Methods

Click to display all available methods, including inherited ones

Expand

Methods

bind, evaluate, isStatic, ref, unref, watch.

Getters

getExpression, getPspec, getValueType.

Setters

None.

getExpression

propertyExpressionGetExpression Source #

Arguments

:: (HasCallStack, MonadIO m, IsPropertyExpression a)
=> a	`expression`: a property `Expression`
-> m Expression	Returns: the object expression

Gets the expression specifying the object of a property expression.

getPspec

propertyExpressionGetPspec Source #

Arguments

:: (HasCallStack, MonadIO m, IsPropertyExpression a)
=> a	`expression`: a property `Expression`
-> m GParamSpec	Returns: the `ParamSpec`

Gets the ParamSpec specifying the property of a property expression.

new

propertyExpressionNew Source #

Arguments

:: (HasCallStack, MonadIO m, IsExpression a)
=> GType	`thisType`: The type to expect for the this type
-> Maybe a	`expression`: Expression to evaluate to get the object to query or `Nothing` to query the `this` object
-> Text	`propertyName`: name of the property
-> m Expression	Returns: a new `Expression`

Creates an expression that looks up a property via the given expression or the this argument when expression is Nothing.

If the resulting object conforms to thisType, its property named propertyName will be queried. Otherwise, this expression's evaluation will fail.

The given thisType must have a property with propertyName.

newForPspec

propertyExpressionNewForPspec Source #

Arguments

:: (HasCallStack, MonadIO m, IsExpression a)
=> Maybe a	`expression`: Expression to evaluate to get the object to query or `Nothing` to query the `this` object
-> GParamSpec	`pspec`: the `ParamSpec` for the property to query
-> m Expression	Returns: a new `Expression`

Creates an expression that looks up a property via the given expression or the this argument when expression is Nothing.

If the resulting object conforms to thisType, its property specified by pspec will be queried. Otherwise, this expression's evaluation will fail.