You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
145 lines
4.6 KiB
C++
145 lines
4.6 KiB
C++
#ifndef _PYTHONQTSIGNALRECEIVER_H
|
|
#define _PYTHONQTSIGNALRECEIVER_H
|
|
|
|
/*
|
|
*
|
|
* Copyright (C) 2010 MeVis Medical Solutions AG All Rights Reserved.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* Further, this software is distributed without any warranty that it is
|
|
* free of the rightful claim of any third person regarding infringement
|
|
* or the like. Any license provided herein, whether implied or
|
|
* otherwise, applies only to this software file. Patent licenses, if
|
|
* any, provided herein do not apply to combinations of this program with
|
|
* other software, or any other product whatsoever.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Contact information: MeVis Medical Solutions AG, Universitaetsallee 29,
|
|
* 28359 Bremen, Germany or:
|
|
*
|
|
* http://www.mevis.de
|
|
*
|
|
*/
|
|
|
|
//----------------------------------------------------------------------------------
|
|
/*!
|
|
// \file PythonQtSignalReceiver.h
|
|
// \author Florian Link
|
|
// \author Last changed by $Author: florian $
|
|
// \date 2006-05
|
|
*/
|
|
//----------------------------------------------------------------------------------
|
|
|
|
#include "PythonQtPythonInclude.h"
|
|
|
|
#include "PythonQtSystem.h"
|
|
#include "PythonQtObjectPtr.h"
|
|
|
|
class PythonQtMethodInfo;
|
|
class PythonQtClassInfo;
|
|
|
|
//! stores information about a signal target
|
|
/*! copy construction and assignment works fine with the C++ standard behavior and are thus not implemented
|
|
*/
|
|
class PYTHONQT_EXPORT PythonQtSignalTarget {
|
|
public:
|
|
PythonQtSignalTarget() {
|
|
_signalId = -1;
|
|
_methodInfo = nullptr;
|
|
_slotId = -1;
|
|
}
|
|
|
|
PythonQtSignalTarget(int signalId,const PythonQtMethodInfo* methodInfo, int slotId, PyObject* callable)
|
|
{
|
|
_signalId = signalId;
|
|
_slotId = slotId;
|
|
_methodInfo = methodInfo;
|
|
_callable = callable;
|
|
};
|
|
|
|
~PythonQtSignalTarget() {
|
|
};
|
|
|
|
//! get the id of the original signal
|
|
int signalId() const { return _signalId; }
|
|
|
|
//! get the id that was assigned to this simulated slot
|
|
int slotId() const { return _slotId; }
|
|
|
|
//! get the signals parameter info
|
|
const PythonQtMethodInfo* methodInfo() const { return _methodInfo; }
|
|
|
|
//! call the python callable with the given arguments (as defined in methodInfo)
|
|
void call(void **arguments) const;
|
|
|
|
//! check if it is the same signal target
|
|
bool isSame(int signalId, PyObject* callable) const;
|
|
|
|
//! call the given callable with arguments described by PythonQtMethodInfo, returns a new reference as result value (or NULL)
|
|
static PyObject* call(PyObject* callable, const PythonQtMethodInfo* methodInfo, void **arguments, bool skipFirstArgumentOfMethodInfo = false);
|
|
|
|
private:
|
|
int _signalId;
|
|
int _slotId;
|
|
const PythonQtMethodInfo* _methodInfo;
|
|
PythonQtSafeObjectPtr _callable;
|
|
};
|
|
|
|
//! base class for signal receivers
|
|
/*!
|
|
*/
|
|
class PythonQtSignalReceiverBase : public QObject {
|
|
Q_OBJECT
|
|
public:
|
|
PythonQtSignalReceiverBase(QObject* obj):QObject(obj) {};
|
|
};
|
|
|
|
//! receives all signals for one QObject
|
|
/*! we derive from our base but do not declare the QObject macro because we want to reimplement qt_metacall only.
|
|
*/
|
|
class PythonQtSignalReceiver : public PythonQtSignalReceiverBase {
|
|
|
|
public:
|
|
PythonQtSignalReceiver(QObject* obj);
|
|
~PythonQtSignalReceiver() override;
|
|
|
|
//! add a signal handler
|
|
bool addSignalHandler(const char* signal, PyObject* callable);
|
|
|
|
//! remove a signal handler for given callable (or all callables on that signal if callable is NULL)
|
|
bool removeSignalHandler(const char* signal, PyObject* callable = nullptr);
|
|
|
|
//! we implement this method to simulate a number of slots that match the ids in _targets
|
|
int qt_metacall(QMetaObject::Call c, int id, void **arguments) override;
|
|
|
|
private:
|
|
//! get the index of the signal
|
|
int getSignalIndex(const char* signal);
|
|
|
|
QObject* _obj;
|
|
PythonQtClassInfo* _objClassInfo;
|
|
int _slotCount;
|
|
int _destroyedSignalCount;
|
|
// linear list may get slow on multiple targets, but I think typically we have many objects and just a few signals
|
|
QList<PythonQtSignalTarget> _targets;
|
|
|
|
static int _destroyedSignal1Id;
|
|
static int _destroyedSignal2Id;
|
|
};
|
|
|
|
|
|
#endif
|
|
|