gtkmm: Gtk::ClosureExpression< T > Class Template Reference
#include <gtkmm/expression.h>
Inheritance diagram for Gtk::ClosureExpression< T >:
Static Public Member Functions | |
static GType | get_type () |
Get the GType for this class, for use with the underlying GObject type system. More... | |
template<class S , class... ATs> | |
static Glib::RefPtr< ClosureExpression< T > > | create (S slot, const Glib::RefPtr< ATs >&...params) |
Creates a Gtk::Expression that calls slot when it is evaluated. More... | |
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();. More... | |
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. More... | |
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. More... | |
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. More... | |
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. More... | |
Public Member Functions inherited from Gtk::ExpressionBase | |
void | reference () const |
Increment the reference count for this object. More... | |
void | unreference () const |
Decrement the reference count for this object. More... | |
GtkExpression* | gobj () |
Provides access to the underlying C instance. More... | |
const GtkExpression* | gobj () const |
Provides access to the underlying C instance. More... | |
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. More... | |
ExpressionBase ()=delete | |
ExpressionBase (const ExpressionBase&)=delete | |
ExpressionBase& | operator= (const ExpressionBase&)=delete |
GType | get_value_type () const |
Gets the GType that this expression evaluates to. More... | |
bool | is_static () const |
Checks if the expression is static. More... | |
Protected Member Functions inherited from Gtk::ExpressionBase | |
void | operator delete (void*, std::size_t) |
Related Functions inherited from Gtk::ExpressionBase | |
Glib::RefPtr< Gtk::ExpressionBase > | wrap (GtkExpression* object, bool take_copy=false) |
A Glib::wrap() method for this object. More... | |
Member Function Documentation
template <class T >
template <class S , class... ATs>
|
static |
Creates a Gtk::Expression that calls slot when it is evaluated.
slot is called with the this object and the results of evaluating the params expressions.
Example:
{
}
Glib::RefPtr<Gtk::Expression<double>> expr1 = ...
Glib::RefPtr<Gtk::Expression<int>> expr2 = ...
Glib::RefPtr<Gtk::Expression<Glib::ustring>> expr3 =
sigc::ptr_fun(get_string), expr1, expr2);
- Parameters
-
slot Slot to call when evaluating this expression. params Expressions for each parameter.
- Returns
- A new Gtk::Expression.
template <class T >
|
static |
Get the GType for this class, for use with the underlying GObject type system.