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QGIS/python/core/conversions.sip
jef 48dcaffbd5 add conversion for QMap<QString, QVariant::Type> 
git-svn-id: http://svn.osgeo.org/qgis/trunk@9077 c8812cc2-4d05-0410-92ff-de0c093fc19c
2008-08-20 06:55:54 +00:00

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/*
This file contains code for conversion between various (often nested) mapped types
which are not wrapped by PyQt:
- QVector< QVector<TYPE> >
- QVector< QVector< QVector<TYPE> > >
- QSet<int>
- QSet<TYPE>
- QMap<int, QMap<int, TYPE> >
- QMap<QString, QVariant::Type>
- QMap<TYPE1, TYPE2*>
- QMultiMap<double, TYPE2>
*/
%ModuleHeaderCode
// From Python 2.5, some functions use Py_ssize_t instead of int
// thus this typedef is for maintaining backward compatibility
// for older versions of Python
#if (PY_VERSION_HEX < 0x02050000)
typedef int Py_ssize_t;
#endif
%End
template <TYPE>
%MappedType QVector< QVector<TYPE> >
{
%TypeHeaderCode
#include <QVector>
%End
%ConvertFromTypeCode
// Create the list.
PyObject *l;
if ((l = PyList_New(sipCpp->size())) == NULL)
return NULL;
const sipMappedType* qvector_qgspoint = sipFindMappedType("QVector<QgsPoint>");
// Set the list elements.
for (int i = 0; i < sipCpp->size(); ++i)
{
QVector<TYPE>* t = new QVector<TYPE>(sipCpp->at(i));
PyObject *tobj;
if ((tobj = sipConvertFromMappedType(t, qvector_qgspoint, sipTransferObj)) == NULL)
{
Py_DECREF(l);
delete t;
return NULL;
}
PyList_SET_ITEM(l, i, tobj);
}
return l;
%End
%ConvertToTypeCode
const sipMappedType* qvector_qgspoint = sipFindMappedType("QVector<QgsPoint>");
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyList_Check(sipPy))
return 0;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
if (!sipCanConvertToMappedType(PyList_GET_ITEM(sipPy, i), qvector_qgspoint, SIP_NOT_NONE))
return 0;
return 1;
}
QVector< QVector<TYPE> > *ql = new QVector< QVector<TYPE> >;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
{
int state;
//TYPE *t = reinterpret_cast<TYPE *>(sipConvertToInstance(PyList_GET_ITEM(sipPy, i), sipClass_TYPE, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
QVector<TYPE> * t = reinterpret_cast< QVector<TYPE> * >(sipConvertToMappedType(PyList_GET_ITEM(sipPy, i), qvector_qgspoint, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(t, sipClass_TYPE, state);
delete ql;
return 0;
}
ql->append(*t);
sipReleaseInstance(t, sipClass_TYPE, state);
}
*sipCppPtr = ql;
return sipGetState(sipTransferObj);
%End
};
template <TYPE>
%MappedType QVector< QVector< QVector<TYPE> > >
{
%TypeHeaderCode
#include <QVector>
%End
%ConvertFromTypeCode
// Create the list.
PyObject *l;
if ((l = PyList_New(sipCpp->size())) == NULL)
return NULL;
const sipMappedType* qvector_qgspoint = sipFindMappedType("QVector<QVector<QgsPoint> >");
// Set the list elements.
for (int i = 0; i < sipCpp->size(); ++i)
{
QVector<QVector<TYPE> >* t = new QVector<QVector<TYPE> >(sipCpp->at(i));
PyObject *tobj;
if ((tobj = sipConvertFromMappedType(t, qvector_qgspoint, sipTransferObj)) == NULL)
{
Py_DECREF(l);
delete t;
return NULL;
}
PyList_SET_ITEM(l, i, tobj);
}
return l;
%End
%ConvertToTypeCode
const sipMappedType* qvector_qgspoint = sipFindMappedType("QVector<QVector<QgsPoint> >");
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyList_Check(sipPy))
return 0;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
if (!sipCanConvertToMappedType(PyList_GET_ITEM(sipPy, i), qvector_qgspoint, SIP_NOT_NONE))
return 0;
return 1;
}
QVector< QVector< QVector<TYPE> > > *ql = new QVector< QVector< QVector<TYPE> > >;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
{
int state;
//TYPE *t = reinterpret_cast<TYPE *>(sipConvertToInstance(PyList_GET_ITEM(sipPy, i), sipClass_TYPE, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
QVector<QVector<TYPE> > * t = reinterpret_cast< QVector< QVector<TYPE> > * >(sipConvertToMappedType(PyList_GET_ITEM(sipPy, i), qvector_qgspoint, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(t, sipClass_TYPE, state);
delete ql;
return 0;
}
ql->append(*t);
sipReleaseInstance(t, sipClass_TYPE, state);
}
*sipCppPtr = ql;
return sipGetState(sipTransferObj);
%End
};
%MappedType QSet<int>
{
%TypeHeaderCode
#include <QSet>
%End
%ConvertFromTypeCode
// Create the list.
PyObject *l;
if ((l = PyList_New(sipCpp->size())) == NULL)
return NULL;
// Set the list elements.
QSet<int>::iterator it = sipCpp->begin();
for (int i = 0; it != sipCpp->end(); ++it, ++i)
{
PyObject *tobj;
if ((tobj = PyInt_FromLong(*it)) == NULL)
{
Py_DECREF(l);
return NULL;
}
PyList_SET_ITEM(l, i, tobj);
}
return l;
%End
%ConvertToTypeCode
// Check the type if that is all that is required.
if (sipIsErr == NULL)
return PyList_Check(sipPy);
QSet<int> *qset = new QSet<int>;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
{
qset->insert(PyInt_AsLong(PyList_GET_ITEM(sipPy, i)));
}
*sipCppPtr = qset;
return sipGetState(sipTransferObj);
%End
};
template <TYPE>
%MappedType QSet<TYPE>
{
%TypeHeaderCode
#include <QSet>
%End
%ConvertFromTypeCode
// Create the list.
PyObject *l;
if ((l = PyList_New(sipCpp->size())) == NULL)
return NULL;
// Set the list elements.
int i=0;
for (QSet<TYPE>::iterator it = sipCpp->begin(); it != sipCpp->end(); ++it, ++i)
{
TYPE *t = new TYPE(*it);
PyObject *tobj;
if ((tobj = sipConvertFromNewInstance(t, sipClass_TYPE, sipTransferObj)) == NULL)
{
Py_DECREF(l);
delete t;
return NULL;
}
PyList_SET_ITEM(l, i, tobj);
}
return l;
%End
%ConvertToTypeCode
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyList_Check(sipPy))
return 0;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
if (!sipCanConvertToInstance(PyList_GET_ITEM(sipPy, i), sipClass_TYPE, SIP_NOT_NONE))
return 0;
return 1;
}
QSet<TYPE> *qset = new QSet<TYPE>;
for (int i = 0; i < PyList_GET_SIZE(sipPy); ++i)
{
int state;
TYPE* t = reinterpret_cast<TYPE *>(sipConvertToInstance(PyList_GET_ITEM(sipPy, i), sipClass_TYPE, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(t, sipClass_TYPE, state);
delete qset;
return 0;
}
qset->insert(*t);
sipReleaseInstance(t, sipClass_TYPE, state);
}
*sipCppPtr = qset;
return sipGetState(sipTransferObj);
%End
};
template<TYPE>
%MappedType QMap<int, QMap<int, TYPE> >
{
%TypeHeaderCode
#include <QMap>
%End
%ConvertFromTypeCode
// Create the list.
PyObject *d;
if ((d = PyDict_New()) == NULL)
return NULL;
const sipMappedType* qmap2 = sipFindMappedType("QMap<int, TYPE>");
// Set the list elements.
for (QMap<int, QMap<int, TYPE> >::iterator it = sipCpp->begin(); it != sipCpp->end(); ++it)
{
QMap<int, TYPE>* t = new QMap<int, TYPE>(*it);
PyObject *kobj = PyInt_FromLong(it.key());
PyObject *tobj = sipConvertFromMappedType(t, qmap2, sipTransferObj);
if (kobj == NULL || tobj == NULL || PyDict_SetItem(d, kobj, tobj) < 0)
{
Py_DECREF(d);
if (kobj)
{
Py_DECREF(kobj);
}
if (tobj)
{
Py_DECREF(tobj);
}
else
{
delete t;
}
return NULL;
}
Py_DECREF(kobj);
Py_DECREF(tobj);
}
return d;
%End
%ConvertToTypeCode
PyObject *kobj, *tobj, *kobj2, *tobj2;
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyDict_Check(sipPy))
return 0;
Py_ssize_t i = 0;
while (PyDict_Next(sipPy, &i, &kobj, &tobj))
{
if (!PyDict_Check(tobj))
return 0;
Py_ssize_t j = 0;
while (PyDict_Next(tobj, &j, &kobj2, &tobj2))
{
if (!sipCanConvertToInstance(tobj2, sipClass_TYPE, SIP_NOT_NONE))
return 0;
}
}
return 1;
}
QMap<int, QMap<int, TYPE> > *qm = new QMap<int, QMap<int, TYPE> >;
Py_ssize_t i = 0;
while (PyDict_Next(sipPy, &i, &kobj, &tobj))
{
int k = PyInt_AsLong(kobj);
// using sipConvertToMappedType to convert directly to QMap<int, TYPE> doesn't work
// and ends with a segfault
QMap<int, TYPE> qm2;
Py_ssize_t j = 0;
while (PyDict_Next(tobj, &j, &kobj2, &tobj2))
{
int k2 = PyInt_AsLong(kobj2);
int state;
TYPE* fa = reinterpret_cast<TYPE*>(sipConvertToInstance(tobj2, sipClass_TYPE, sipTransferObj,SIP_NOT_NONE,&state,sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(tobj2, sipClass_TYPE, state);
delete qm;
return 0;
}
qm2.insert(k2, *fa);
sipReleaseInstance(tobj2, sipClass_TYPE, state);
}
qm->insert(k, qm2);
}
*sipCppPtr = qm;
return sipGetState(sipTransferObj);
%End
};
%MappedType QMap<QString, QVariant::Type>
{
%TypeHeaderCode
#include <QMap>
%End
%ConvertFromTypeCode
// Create the dictionary.
PyObject *d = PyDict_New();
if (!d)
return NULL;
// Set the dictionary elements.
QMap<QString, QVariant::Type>::const_iterator i = sipCpp->constBegin();
while (i != sipCpp->constEnd())
{
QString *t1 = new QString(i.key());
PyObject *t1obj = sipConvertFromNewInstance(t1, sipClass_QString, sipTransferObj);
PyObject *t2obj = PyInt_FromLong( (long) i.value() );
if (t1obj == NULL || t2obj == NULL || PyDict_SetItem(d, t1obj, t2obj) < 0)
{
Py_DECREF(d);
if (t1obj) {
Py_DECREF(t1obj);
} else {
delete t1;
}
if (t2obj) {
Py_DECREF(t2obj);
}
return NULL;
}
Py_DECREF(t1obj);
Py_DECREF(t2obj);
++i;
}
return d;
%End
%ConvertToTypeCode
PyObject *t1obj, *t2obj;
#if PY_VERSION_HEX >= 0x02050000
Py_ssize_t i = 0;
#else
int i = 0;
#endif
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyDict_Check(sipPy))
return 0;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
if (!sipCanConvertToInstance(t1obj, sipClass_QString, SIP_NOT_NONE))
return 0;
}
return 1;
}
QMap<QString, QVariant::Type> *qm = new QMap<QString, QVariant::Type>;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
int state;
QString *t1 = reinterpret_cast<QString *>(sipConvertToInstance(t1obj, sipClass_QString, sipTransferObj, SIP_NOT_NONE, &state, sipIsErr));
QVariant::Type t2 = (QVariant::Type) PyInt_AsLong(t1obj);
if (*sipIsErr)
{
sipReleaseInstance(t1, sipClass_QString, state);
delete qm;
return 0;
}
qm->insert(*t1, t2);
sipReleaseInstance(t1, sipClass_QString, state);
}
*sipCppPtr = qm;
return sipGetState(sipTransferObj);
%End
};
template<TYPE1, TYPE2>
%MappedType QMap<TYPE1, TYPE2*>
{
%TypeHeaderCode
#include <qmap.h>
%End
%ConvertFromTypeCode
// Create the dictionary.
PyObject *d = PyDict_New();
if (!d)
return NULL;
// Set the dictionary elements.
QMap<TYPE1, TYPE2*>::const_iterator i = sipCpp->constBegin();
while (i != sipCpp->constEnd())
{
TYPE1 *t1 = new TYPE1(i.key());
TYPE2 *t2 = i.value();
PyObject *t1obj = sipConvertFromNewInstance(t1, sipClass_TYPE1, sipTransferObj);
PyObject *t2obj = sipConvertFromInstance(t2, sipClass_TYPE2, sipTransferObj);
if (t1obj == NULL || t2obj == NULL || PyDict_SetItem(d, t1obj, t2obj) < 0)
{
Py_DECREF(d);
if (t1obj)
Py_DECREF(t1obj);
else
delete t1;
if (t2obj)
Py_DECREF(t2obj);
else
delete t2;
return NULL;
}
Py_DECREF(t1obj);
Py_DECREF(t2obj);
++i;
}
return d;
%End
%ConvertToTypeCode
PyObject *t1obj, *t2obj;
#if PY_VERSION_HEX >= 0x02050000
Py_ssize_t i = 0;
#else
int i = 0;
#endif
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyDict_Check(sipPy))
return 0;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
if (!sipCanConvertToInstance(t1obj, sipClass_TYPE1, SIP_NOT_NONE))
return 0;
if (!sipCanConvertToInstance(t2obj, sipClass_TYPE2, SIP_NOT_NONE))
return 0;
}
return 1;
}
QMap<TYPE1, TYPE2*> *qm = new QMap<TYPE1, TYPE2*>;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
int state1, state2;
TYPE1 *t1 = reinterpret_cast<TYPE1 *>(sipConvertToInstance(t1obj, sipClass_TYPE1, sipTransferObj, SIP_NOT_NONE, &state1, sipIsErr));
TYPE2 *t2 = reinterpret_cast<TYPE2 *>(sipConvertToInstance(t2obj, sipClass_TYPE2, sipTransferObj, SIP_NOT_NONE, &state2, sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(t1, sipClass_TYPE1, state1);
sipReleaseInstance(t2, sipClass_TYPE2, state2);
delete qm;
return 0;
}
qm->insert(*t1, t2);
sipReleaseInstance(t1, sipClass_TYPE1, state1);
sipReleaseInstance(t2, sipClass_TYPE2, state2);
}
*sipCppPtr = qm;
return sipGetState(sipTransferObj);
%End
};
template<double, TYPE2>
%MappedType QMultiMap<double, TYPE2>
{
%TypeHeaderCode
#include <QMultiMap>
%End
%ConvertFromTypeCode
// Create the dictionary.
PyObject *d = PyDict_New();
if (!d)
return NULL;
// Set the dictionary elements.
QMultiMap<double, TYPE2>::iterator i = sipCpp->begin();
while (i != sipCpp->end())
{
const double t1 = i.key();
TYPE2 * t2 = &i.value();
PyObject *t1obj = PyFloat_FromDouble(t1);
PyObject *t2obj = sipConvertFromInstance(t2, sipClass_TYPE2, sipTransferObj);
if (PyDict_GetItem(d, t1obj) == NULL) {
PyObject *lst = PyList_New(0);
PyDict_SetItem(d, t1obj, lst);
if (lst)
{
Py_DECREF(lst);
}
}
if (t1obj == NULL || t2obj == NULL ||
PyList_Append(PyDict_GetItem(d, t1obj), t2obj) < 0)
{
Py_DECREF(d);
if (t1obj)
{
Py_DECREF(t1obj);
}
if (t2obj)
{
Py_DECREF(t2obj);
}
return NULL;
}
Py_DECREF(t1obj);
Py_DECREF(t2obj);
++i;
}
return d;
%End
%ConvertToTypeCode
PyObject *t1obj, *t2obj;
#if PY_VERSION_HEX >= 0x02050000
Py_ssize_t i = 0;
#else
int i = 0;
#endif
// Check the type if that is all that is required.
if (sipIsErr == NULL)
{
if (!PyDict_Check(sipPy))
return 0;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
for (int i = 0; i < PyList_GET_SIZE(t2obj); ++i) {
if (!sipCanConvertToInstance(PyList_GET_ITEM(t2obj, i),
sipClass_TYPE2, SIP_NOT_NONE))
return 0;
}
}
return 1;
}
QMultiMap<double, TYPE2> *qm = new QMultiMap<double, TYPE2>;
while (PyDict_Next(sipPy, &i, &t1obj, &t2obj))
{
int state2;
double k = PyFloat_AsDouble(t1obj);
for (int i = 0; i < PyList_GET_SIZE(t2obj); ++i) {
TYPE2 *t2 =
reinterpret_cast<TYPE2 *>(sipConvertToInstance(PyList_GET_ITEM(t2obj,
i),
sipClass_TYPE2,
sipTransferObj,
SIP_NOT_NONE,
&state2,
sipIsErr));
if (*sipIsErr)
{
sipReleaseInstance(t2, sipClass_TYPE2, state2);
delete qm;
return 0;
}
qm->insert(k, *t2);
sipReleaseInstance(t2, sipClass_TYPE2, state2);
}
}
*sipCppPtr = qm;
return sipGetState(sipTransferObj);
%End
};
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