qpy::PyCallbackDispatcher Class Reference

Manages Python function invocation through Qt signals. And connection of Qt signals to Python functions or QObject methods. More...

#include <PyCallbackDispatcher.h>

List of all members.

Public Member Functions
	PyCallbackDispatcher (QObject *parent=0)
	Standard QObject constructor.
	PyCallbackDispatcher (PyContext *pc, PyObject *pm, QObject *parent=0)
	Constructor, bind dispatcher to Lua context.
int	qt_metacall (QMetaObject::Call c, int id, void **arguments)
bool	Connect (QObject *obj, int signalIdx, const CBackParameterTypes &paramTypes, PyCBack pyCBack, PyObject *module)
bool	Disconnect (QObject *obj, int signalIdx, PyCBack pyCBack)
void	SetPyContext (PyContext *pc)
	Set Python context.
virtual	~PyCallbackDispatcher ()
	Destructor: Clear method database.

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Detailed Description

Manages Python function invocation through Qt signals. And connection of Qt signals to Python functions or QObject methods.

Exposes methods to connect Qt signals emitted from QObjects to Python functions or other QObject methods. Whenever a new signal -> Python connection is requested a new proxy method is generated and the signal is routed to the new method which in turn takes care of invoking the Python function. Note that when disconnecting a signal the associated method is not currently removed from the method array because signals are connected to methods through the method's position in the method array, thus removing a method from the array invalidates all the signal to method connections for which the method index is greater than the one of the removed method.

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Member Function Documentation

bool qpy::PyCallbackDispatcher::Connect	(	QObject *	obj,
		int	signalIdx,
		const CBackParameterTypes &	paramTypes,
		PyCBack	pyCBack,
		PyObject *	module
	)

Connect signal to Python function

Parameters:

module	Python module; used in case new QObjects need to be added as result of triggered signals
obj	source QObject
signalIdx	signal index
paramTypes	signal signature
pyCBack	reference to Python target function

bool qpy::PyCallbackDispatcher::Disconnect	(	QObject *	obj,
		int	signalIdx,
		PyCBack	pyCBack
	)

Disconnect signal from Python function

Parameters:

obj	source QObject
signalIdx	signal index
pyCBack	Python function

int qpy::PyCallbackDispatcher::qt_metacall	(	QMetaObject::Call	c,
		int	id,
		void **	arguments
	)

Overridden method: This is what makes it possible to bind a signal to a Python function through the index of a proxy method.

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The documentation for this class was generated from the following files:

• PyCallbackDispatcher.h
• PyCallbackDispatcher.cpp