stmi::Accessor Class Reference

A generic class that helps a device manager to generate events. More...

Public Member Functions
virtual	~Accessor () noexcept=default
virtual bool	operator== (const Accessor &oOther) const noexcept=0
	Accessor comparison. More...

Static Public Attributes
static const shared_ptr< Accessor >	s_refEmptyAccessor

Protected Member Functions
	Accessor () noexcept=default

Detailed Description

A generic class that helps a device manager to generate events.

Subclass Accessor for system specific access to devices and/or subsets of event sources. The subclass has to make sure no reference cycles are created which lead to memory leaks.

Example: within the GTK environment a device manager supporting pointer devices uses the subclass GtkAccessor, which holds a (weak) reference to a Gtk::Window. This allows it to listen to pointer events generated in the specified window.

Constructor & Destructor Documentation

~Accessor()

virtual stmi::Accessor::~Accessor ( )

virtualdefaultnoexcept

Accessor()

stmi::Accessor::Accessor ( )

protecteddefaultnoexcept

Member Function Documentation

operator==()

virtual bool stmi::Accessor::operator== ( const Accessor &  oOther ) const

pure virtualnoexcept

Accessor comparison.

Needed to identify accessors and remove them.

Member Data Documentation

s_refEmptyAccessor

const shared_ptr<Accessor> stmi::Accessor::s_refEmptyAccessor

static