Gtk.PropertyExpression¶

Subclasses:: None

Methods¶

Inherited:: Gtk.Expression (7)

class	`new` (this_type, expression, property_name)
class	`new_for_pspec` (expression, pspec)
	`get_expression` ()
	`get_pspec` ()

Virtual Methods¶

None

Fields¶

None

Class Details¶

class Gtk.PropertyExpression¶

Bases:: Gtk.Expression
Abstract:: No

A GObject property value in a GtkExpression.

classmethod new(this_type, expression, property_name)[source]¶

Parameters:

this_type (GObject.GType) – The type to expect for the this type
expression (Gtk.Expression or None) – Expression to evaluate to get the object to query or NULL to query the this object
property_name (str) – name of the property

Returns:

a new GtkExpression

Return type:

Gtk.PropertyExpression

Creates an expression that looks up a property.

The object to use is found by evaluating the expression, or using the this argument when expression is NULL.

If the resulting object conforms to this_type, its property named property_name will be queried. Otherwise, this expression’s evaluation will fail.

The given this_type must have a property with property_name.

classmethod new_for_pspec(expression, pspec)[source]¶

Parameters:

expression (Gtk.Expression or None) – Expression to evaluate to get the object to query or NULL to query the this object
pspec (GObject.ParamSpec) – the GParamSpec for the property to query

Returns:

a new GtkExpression

Return type:

Gtk.PropertyExpression

Creates an expression that looks up a property.

The object to use is found by evaluating the expression, or using the this argument when expression is NULL.

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

get_expression()[source]¶

Returns:: the object expression
Return type:: Gtk.Expression or None

Gets the expression specifying the object of a property expression.

get_pspec()[source]¶

Returns:: the GParamSpec for the property
Return type:: GObject.ParamSpec

Gets the GParamSpec specifying the property of a property expression.