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#include <Python.h>
#include <shiboken.h>
#include <pysideweakref.h>
#include <QEasingCurve>
#include "glue/qeasingcurve_glue.h"
#define __ECF_ATT_NAME__ "__ecf__"
#define MAX_CUSTOM_FUNCTIONS 10
static void deleteData(void* data);
struct CustomFunctionsData
{
static CustomFunctionsData m_list[MAX_CUSTOM_FUNCTIONS];
PySideEasingCurveFunctor* m_obj;
QEasingCurve::EasingFunction m_func;
};
CustomFunctionsData CustomFunctionsData::m_list[MAX_CUSTOM_FUNCTIONS];
template<int N>
struct CustomFunctions
{
static void init()
{
CustomFunctionsData data;
data.m_obj = 0;
data.m_func = &CustomFunctions<N>::callback;
CustomFunctionsData::m_list[N] = data;
CustomFunctions<N-1>::init();
}
static qreal callback(qreal v)
{
return (*CustomFunctionsData::m_list[N].m_obj)(v);
}
};
template<>
struct CustomFunctions<0>
{
static void init()
{
CustomFunctionsData data;
data.m_obj = 0;
data.m_func = &CustomFunctions<0>::callback;
CustomFunctionsData::m_list[0] = data;
}
static qreal callback(qreal v)
{
return (*CustomFunctionsData::m_list[0].m_obj)(v);
}
};
void deleteData(void* data)
{
delete (PySideEasingCurveFunctor*)(data);
}
void PySideEasingCurveFunctor::init()
{
CustomFunctions<MAX_CUSTOM_FUNCTIONS-1>::init();
}
QEasingCurve::EasingFunction PySideEasingCurveFunctor::createCustomFuntion(PyObject* parent, PyObject* pyFunc)
{
for(int i=0; i < MAX_CUSTOM_FUNCTIONS; i++) {
CustomFunctionsData& data = CustomFunctionsData::m_list[i];
if (data.m_obj == 0) {
data.m_obj = new PySideEasingCurveFunctor(i, parent, pyFunc);
return data.m_func;
}
}
//PyErr_Format(PyExc_RuntimeError, "PySide only supports %d custom functions simultaneously.", MAX_CUSTOM_FUNCTIONS);
return 0;
}
PySideEasingCurveFunctor::~PySideEasingCurveFunctor()
{
CustomFunctionsData::m_list[m_index].m_obj = 0;
PyObject_SetAttrString(m_parent, __ECF_ATT_NAME__, Py_None);
}
qreal PySideEasingCurveFunctor::operator()(qreal progress)
{
Shiboken::GilState state;
PyObject* args = Py_BuildValue("(f)", progress);
PyObject* result = PyObject_CallObject(m_func, args);
qreal cppResult = 0.0;
if (result) {
cppResult = Shiboken::Converter<qreal>::toCpp(result);
Py_DECREF(result);
}
Py_DECREF(args);
return cppResult;
}
PyObject* PySideEasingCurveFunctor::callable()
{
Py_INCREF(m_func);
return m_func;
}
PyObject* PySideEasingCurveFunctor::callable(PyObject* parent)
{
return PyObject_GetAttrString(parent, __ECF_ATT_NAME__);
}
PySideEasingCurveFunctor::PySideEasingCurveFunctor(int index, PyObject* parent, PyObject* pyFunc)
: m_parent(parent), m_func(pyFunc), m_index(index)
{
PyObject_SetAttrString(m_parent, __ECF_ATT_NAME__, m_func);
PySide::WeakRef::create(m_parent, deleteData, this);
}
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