Gtk::PropertyExpression< T > Class Template Reference

#include <gtkmm/expression.h>

Inheritance diagram for Gtk::PropertyExpression< T >:

Static Public Member Functions
static GType	get_type ()
	Get the GType for this class, for use with the underlying GObject type system.
static Glib::RefPtr< PropertyExpression >	create (GType this_type, const Glib::ustring & property_name)
	Creates an expression that looks up a property via the this argument.
template<class OT >
static Glib::RefPtr< PropertyExpression >	create (const Glib::RefPtr< OT > & expression, const Glib::ustring & property_name)
	Creates an expression that looks up a property via the given expression.
template<class OT >
static Glib::RefPtr< PropertyExpression >	create (GType this_type, const Glib::RefPtr< OT > & expression, const Glib::ustring & property_name)
	Creates an expression that looks up a property via the given expression.

Additional Inherited Members
Public Types inherited from Gtk::Expression< T >
using	ValueType = T
Public Types inherited from Gtk::ExpressionBase
using	SlotNotify = sigc::slot<void()>
	For instance: void on_notify();.
Public Member Functions inherited from Gtk::Expression< T >
std::optional< T >	evaluate (const Glib::RefPtr< Glib::ObjectBase > & this_)
	Evaluates the given expression and on success returns the result.
Glib::RefPtr< ExpressionWatch< T > >	watch (const Glib::RefPtr< Glib::ObjectBase > & this_, const SlotNotify & notify)
	Installs a watch for the expression that calls the notify function whenever the evaluation of the expression may have changed.
template<class T2 >
Glib::RefPtr< ExpressionWatch< T > >	bind (const Glib::PropertyProxy< T2 > & property, const Glib::RefPtr< Glib::ObjectBase > & this_=nullptr)
	Bind a target's property to the expression.
template<class T2 >
Glib::RefPtr< ExpressionWatch< T > >	bind (const Glib::PropertyProxy_WriteOnly< T2 > & property, const Glib::RefPtr< Glib::ObjectBase > & this_=nullptr)
	Bind a target's property to the expression.
Public Member Functions inherited from Gtk::ExpressionBase
void	reference () const
	Increment the reference count for this object.
void	unreference () const
	Decrement the reference count for this object.
GtkExpression *	gobj ()
	Provides access to the underlying C instance.
const GtkExpression *	gobj () const
	Provides access to the underlying C instance.
GtkExpression *	gobj_copy () const
	Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.
	ExpressionBase ()=delete
	ExpressionBase (const ExpressionBase &)=delete
ExpressionBase &	operator= (const ExpressionBase &)=delete
GType	get_value_type () const
	Gets the GType that this expression evaluates to.
bool	is_static () const
	Checks if the expression is static.
Protected Member Functions inherited from Gtk::ExpressionBase
void	operator delete (void *, std::size_t)
Related Symbols inherited from Gtk::ExpressionBase
Glib::RefPtr< Gtk::ExpressionBase >	wrap (GtkExpression * object, bool take_copy=false)
	A Glib::wrap() method for this object.

Member Function Documentation

create() [1/3]

template <class T >

template <class OT >

static Glib::RefPtr< PropertyExpression > Gtk::PropertyExpression< T >::create ( const Glib::RefPtr< OT > & expression, const Glib::ustring & property_name )

static

Creates an expression that looks up a property via the given expression.

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

The value type of the given expression must have a property with property_name.

Parameters

expression	Expression to evaluate to get the object to query.
property_name	Name of the property.

Returns

A new Gtk::Expression.

create() [2/3]

template <class T >

template <class OT >

static Glib::RefPtr< PropertyExpression > Gtk::PropertyExpression< T >::create ( GType this_type, const Glib::RefPtr< OT > & expression, const Glib::ustring & property_name )

static

Creates an expression that looks up a property via the given expression.

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.

Parameters

this_type	The type to expect for the this type.
expression	Expression to evaluate to get the object to query.
property_name	Name of the property.

Returns

A new Gtk::Expression.

create() [3/3]

template <class T >

static Glib::RefPtr< PropertyExpression > Gtk::PropertyExpression< T >::create ( GType this_type, const Glib::ustring & property_name )

static

Creates an expression that looks up a property via the this argument.

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.

Parameters

this_type	The type to expect for the this type.
property_name	Name of the property.

Returns

A new Gtk::Expression.

get_type()

template <class T >

static GType Gtk::PropertyExpression< T >::get_type ( )

static

Get the GType for this class, for use with the underlying GObject type system.