Connectable Class Reference

Connection management for signal and slot objects

This class implements connection management for signal and slot objects. It makes sure that all connections where this object is involved are closed on destruction. Deriving classes can overload Connectable::opened and Connectable::closed to tune connection managenment.

#include <cxxtools/connectable.h>

Inheritance diagram for Connectable:

List of all members.

Public Member Functions
	Connectable ()
	Default constructor.
virtual	~Connectable ()
	Closes all connections.
virtual void	onConnectionOpen (const Connection &c)
	Registers a Connection with the Connectable.
virtual void	onConnectionClose (const Connection &c)
	Unregisters a Connection from the Connectable.
size_t	connectionCount () const
Protected Member Functions
	Connectable (const Connectable &c)
	Copy constructor.
Connectable &	operator= (const Connectable &rhs)
	Assignment operator.
const std::list< Connection > &	connections () const
	Returns a list of all current connections.
std::list< Connection > &	connections ()
	Returns a list of all current connections.
void	clear ()
Protected Attributes
std::list< Connection >	_connections
	A list of all current connections.

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Constructor & Destructor Documentation

Connectable

(

)

Creates an empty Connectable.

virtual ~Connectable

(

)

[virtual]

When a Connectable object is destroyed, it closes all its connections automatically.

Connectable

(

const Connectable &

c

)

[protected]

See also:

Connectable::operator=()

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Member Function Documentation

virtual void onConnectionOpen

(

const Connection &

c

)

[virtual]

This function is called when a new Connection involving this object is opened. The default implementation adds the connection to a list, so the destructor can close it.

Parameters:

c

Connection being opened

Returns:

True if the Connection was accepted

virtual void onConnectionClose

(

const Connection &

c

)

[virtual]

This function is called when a new Connection involving this object is closed. The default implementation removes the connection from its list of connections.

Parameters:

c

Connection being opened

Connectable& operator=

(

const Connectable &

rhs

)

[protected]

Connectables can be copy constructed if the derived class provides a public copy constructor. Copying a Connectable will not change its connections.