PythonQtConversion.h File Reference

#include "PythonQtPythonInclude.h"
#include "PythonQt.h"
#include "PythonQtMisc.h"
#include "PythonQtClassInfo.h"
#include "PythonQtMethodInfo.h"
#include <QList>
#include <vector>

Go to the source code of this file.

Classes
class	PythonQtConv
	a static class that offers methods for type conversion More...

Macros
#define	PythonQtRegisterListTemplateConverter(type, innertype)
#define	PythonQtRegisterListTemplateConverterForKnownClass(type, innertype)
#define	PythonQtRegisterQPairConverter(type1, type2)
#define	PythonQtRegisterIntegerMapConverter(type, innertype)
#define	PythonQtRegisterListTemplateQPairConverter(listtype, type1, type2)
#define	PythonQtRegisterToolClassesTemplateConverter(innertype)
#define	PythonQtRegisterToolClassesTemplateConverterForKnownClass(innertype)

Typedefs
typedef PyObject *	PythonQtConvertMetaTypeToPythonCB(const void *inObject, int metaTypeId)
typedef bool	PythonQtConvertPythonToMetaTypeCB(PyObject *inObject, void *outObject, int metaTypeId, bool strict)
typedef QVariant	PythonQtConvertPythonSequenceToQVariantListCB(PyObject *inObject)

Functions
template<class ListType , class T >
PyObject *	PythonQtConvertListOfValueTypeToPythonList (const void *inList, int metaTypeId)
template<class ListType , class T >
bool	PythonQtConvertPythonListToListOfValueType (PyObject *obj, void *outList, int metaTypeId, bool)
template<class ListType , class T >
PyObject *	PythonQtConvertListOfKnownClassToPythonList (const void *inList, int metaTypeId)
template<class ListType , class T >
bool	PythonQtConvertPythonListToListOfKnownClass (PyObject *obj, void *outList, int metaTypeId, bool)
template<class T1 , class T2 >
PyObject *	PythonQtConvertPairToPython (const void *inPair, int metaTypeId)
template<class T1 , class T2 >
bool	PythonQtConvertPythonToPair (PyObject *obj, void *outPair, int metaTypeId, bool)
template<class ListType , class T1 , class T2 >
PyObject *	PythonQtConvertListOfPairToPythonList (const void *inList, int metaTypeId)
template<class ListType , class T1 , class T2 >
bool	PythonQtConvertPythonListToListOfPair (PyObject *obj, void *outList, int metaTypeId, bool)
template<class MapType , class T >
PyObject *	PythonQtConvertIntegerMapToPython (const void *inMap, int metaTypeId)
template<class MapType , class T >
bool	PythonQtConvertPythonToIntegerMap (PyObject *val, void *outMap, int metaTypeId, bool)

Detailed Description

Author

Florian Link

Last changed by

Author

florian

Date

2006-05

Definition in file PythonQtConversion.h.

Macro Definition Documentation

PythonQtRegisterIntegerMapConverter

#define PythonQtRegisterIntegerMapConverter	(		type,
			innertype
	)

Value:

{ int typeId = qRegisterMetaType<type<int, innertype > >(#type"<int, "#innertype">"); \
  PythonQtConv::registerPythonToMetaTypeConverter(typeId, PythonQtConvertPythonToIntegerMap<type<int, innertype >, innertype>); \
  PythonQtConv::registerMetaTypeToPythonConverter(typeId, PythonQtConvertIntegerMapToPython<type<int, innertype >, innertype>); \
}

Definition at line 76 of file PythonQtConversion.h.

PythonQtRegisterListTemplateConverter

#define PythonQtRegisterListTemplateConverter	(		type,
			innertype
	)

Value:

{ int typeId = qRegisterMetaType<type<innertype > >(#type"<"#innertype">"); \
PythonQtConv::registerPythonToMetaTypeConverter(typeId, PythonQtConvertPythonListToListOfValueType<type<innertype >, innertype>); \
PythonQtConv::registerMetaTypeToPythonConverter(typeId, PythonQtConvertListOfValueTypeToPythonList<type<innertype >, innertype>); \
}

Definition at line 58 of file PythonQtConversion.h.

PythonQtRegisterListTemplateConverterForKnownClass

#define PythonQtRegisterListTemplateConverterForKnownClass	(		type,
			innertype
	)

Value:

{ int typeId = qRegisterMetaType<type<innertype > >(#type"<"#innertype">"); \
  PythonQtConv::registerPythonToMetaTypeConverter(typeId, PythonQtConvertPythonListToListOfKnownClass<type<innertype >, innertype>); \
  PythonQtConv::registerMetaTypeToPythonConverter(typeId, PythonQtConvertListOfKnownClassToPythonList<type<innertype >, innertype>); \
}

Definition at line 64 of file PythonQtConversion.h.

PythonQtRegisterListTemplateQPairConverter

#define PythonQtRegisterListTemplateQPairConverter	(		listtype,
			type1,
			type2
	)

Value:

{ \
  qRegisterMetaType<QPair<type1, type2> >("QPair<"#type1","#type2">"); \
  int typeId = qRegisterMetaType<listtype<QPair<type1, type2> > >(#listtype"<QPair<"#type1","#type2">>"); \
  PythonQtConv::registerPythonToMetaTypeConverter(typeId, PythonQtConvertPythonListToListOfPair<listtype<QPair<type1, type2> >, type1, type2>); \
  PythonQtConv::registerMetaTypeToPythonConverter(typeId, PythonQtConvertListOfPairToPythonList<listtype<QPair<type1, type2> >, type1, type2>); \
}

Definition at line 82 of file PythonQtConversion.h.

PythonQtRegisterQPairConverter

#define PythonQtRegisterQPairConverter	(		type1,
			type2
	)

Value:

{ int typeId = qRegisterMetaType<QPair<type1, type2> >("QPair<"#type1","#type2">"); \
  PythonQtConv::registerPythonToMetaTypeConverter(typeId, PythonQtConvertPythonToPair<type1, type2>); \
  PythonQtConv::registerMetaTypeToPythonConverter(typeId, PythonQtConvertPairToPython<type1, type2>); \
}

Definition at line 70 of file PythonQtConversion.h.

PythonQtRegisterToolClassesTemplateConverter

#define PythonQtRegisterToolClassesTemplateConverter

(

innertype

)

Value:

  PythonQtRegisterListTemplateConverter(QList, innertype); \
  PythonQtRegisterListTemplateConverter(QVector, innertype); \
  PythonQtRegisterListTemplateConverter(std::vector, innertype);

Definition at line 90 of file PythonQtConversion.h.

PythonQtRegisterToolClassesTemplateConverterForKnownClass

#define PythonQtRegisterToolClassesTemplateConverterForKnownClass

(

innertype

)

Value:

  PythonQtRegisterListTemplateConverterForKnownClass(QList, innertype); \
  PythonQtRegisterListTemplateConverterForKnownClass(QVector, innertype); \
  PythonQtRegisterListTemplateConverterForKnownClass(std::vector, innertype);

Definition at line 95 of file PythonQtConversion.h.

Typedef Documentation

PythonQtConvertMetaTypeToPythonCB

typedef PyObject* PythonQtConvertMetaTypeToPythonCB(const void *inObject, int metaTypeId)

Definition at line 54 of file PythonQtConversion.h.

PythonQtConvertPythonSequenceToQVariantListCB

typedef QVariant PythonQtConvertPythonSequenceToQVariantListCB(PyObject *inObject)

Definition at line 56 of file PythonQtConversion.h.

PythonQtConvertPythonToMetaTypeCB

typedef bool PythonQtConvertPythonToMetaTypeCB(PyObject *inObject, void *outObject, int metaTypeId, bool strict)

Definition at line 55 of file PythonQtConversion.h.

Function Documentation

PythonQtConvertIntegerMapToPython()

template<class MapType , class T >

PyObject* PythonQtConvertIntegerMapToPython	(	const void *	inMap,
		int	metaTypeId
	)

Definition at line 450 of file PythonQtConversion.h.

{
  MapType* map = (MapType*)inMap;
  static int innerType = -1;
  if (innerType == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertIntegerMapToPython: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
 
  PyObject* result = PyDict_New();
  typename MapType::const_iterator t = map->constBegin();
  PyObject* key;
  PyObject* val;
  for (; t != map->constEnd(); t++) {
    key = PyInt_FromLong(t.key());
    val = PythonQtConv::convertQtValueToPythonInternal(innerType, &t.value());
    PyDict_SetItem(result, key, val);
    Py_DECREF(key);
    Py_DECREF(val);
  }
  return result;
}

References PythonQtConv::convertQtValueToPythonInternal(), PythonQtMethodInfo::getInnerTemplateTypeName(), and PythonQtUtils::typeName().

PythonQtConvertListOfKnownClassToPythonList()

template<class ListType , class T >

PyObject* PythonQtConvertListOfKnownClassToPythonList	(	const void *	inList,
		int	metaTypeId
	)

Definition at line 269 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)inList;
  static PythonQtClassInfo* innerType = PythonQt::priv()->getClassInfo(PythonQtMethodInfo::getInnerListTypeName(QByteArray(QMetaType::typeName(metaTypeId))));
  if (innerType == NULL) {
    std::cerr << "PythonQtConvertListOfKnownClassToPythonList: unknown inner type " << innerType->className().constData() << std::endl;
  }
  PyObject* result = PyTuple_New(list->size());
  int i = 0;
  Q_FOREACH(const T& value, *list) {
    T* newObject = new T(value);
    PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)PythonQt::priv()->wrapPtr(newObject, innerType->className());
    wrap->_ownedByPythonQt = true;
    PyTuple_SET_ITEM(result, i, (PyObject*)wrap);
    i++;
  }
  return result;
}

References PythonQtInstanceWrapper::_ownedByPythonQt, PythonQtClassInfo::className(), PythonQtPrivate::getClassInfo(), PythonQtMethodInfo::getInnerListTypeName(), PythonQt::priv(), PythonQtUtils::typeName(), and PythonQtPrivate::wrapPtr().

PythonQtConvertListOfPairToPythonList()

template<class ListType , class T1 , class T2 >

PyObject* PythonQtConvertListOfPairToPythonList	(	const void *	inList,
		int	metaTypeId
	)

Definition at line 398 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)inList;
  static int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertListOfPairToPythonList: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject* result = PyTuple_New(list->size());
  int i = 0;
  typedef const QPair<T1, T2> Pair;
  Q_FOREACH(Pair& value, *list) {
    PyObject* object = PythonQtConvertPairToPython<T1, T2>(&value, innerType);
    PyTuple_SET_ITEM(result, i, object);
    i++;
  }
  return result;
}

References PythonQtMethodInfo::getInnerTemplateMetaType(), and PythonQtUtils::typeName().

PythonQtConvertListOfValueTypeToPythonList()

template<class ListType , class T >

PyObject* PythonQtConvertListOfValueTypeToPythonList	(	const void *	inList,
		int	metaTypeId
	)

Definition at line 219 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)inList; 
  static const int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertListOfValueTypeToPythonList: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject* result = PyTuple_New(list->size());
  int i = 0;
  Q_FOREACH (const T& value, *list) {
    PyTuple_SET_ITEM(result, i, PythonQtConv::convertQtValueToPythonInternal(innerType, &value));
    i++;
  }
  return result;
}

References PythonQtConv::convertQtValueToPythonInternal(), PythonQtMethodInfo::getInnerTemplateMetaType(), and PythonQtUtils::typeName().

PythonQtConvertPairToPython()

template<class T1 , class T2 >

PyObject* PythonQtConvertPairToPython	(	const void *	inPair,
		int	metaTypeId
	)

Definition at line 329 of file PythonQtConversion.h.

{
  QPair<T1, T2>* pair = (QPair<T1, T2>*)inPair;
  static int innerType1 = -1;
  static int innerType2 = -1;
  if (innerType1==-1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType1 = QMetaType::type(names.at(0).trimmed());
    innerType2 = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType1 == QVariant::Invalid || innerType2 == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPairToPython: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject* result = PyTuple_New(2);
  PyTuple_SET_ITEM(result, 0, PythonQtConv::convertQtValueToPythonInternal(innerType1, &pair->first));
  PyTuple_SET_ITEM(result, 1, PythonQtConv::convertQtValueToPythonInternal(innerType2, &pair->second));
  return result;
}

References PythonQtConv::convertQtValueToPythonInternal(), PythonQtMethodInfo::getInnerTemplateTypeName(), and PythonQtUtils::typeName().

PythonQtConvertPythonListToListOfKnownClass()

template<class ListType , class T >

bool PythonQtConvertPythonListToListOfKnownClass	(	PyObject *	obj,
		void *	outList,
		int	metaTypeId,
		bool
	)

Definition at line 289 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)outList;
  static PythonQtClassInfo* innerType = PythonQt::priv()->getClassInfo(PythonQtMethodInfo::getInnerListTypeName(QByteArray(QMetaType::typeName(metaTypeId))));
  if (innerType == NULL) {
    std::cerr << "PythonQtConvertListOfKnownClassToPythonList: unknown inner type " << innerType->className().constData() << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject* value;
      for (int i = 0; i < count; i++) {
        value = PySequence_GetItem(obj, i);
        if (PyObject_TypeCheck(value, &PythonQtInstanceWrapper_Type)) {
          PythonQtInstanceWrapper* wrap = (PythonQtInstanceWrapper*)value;
          bool ok;
          T* object = (T*)PythonQtConv::castWrapperTo(wrap, innerType->className(), ok);
          Py_XDECREF(value);
          if (ok) {
            list->push_back(*object);
          } else {
            result = false;
            break;
          }
        } else {
          Py_XDECREF(value);
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

References PythonQtConv::castWrapperTo(), PythonQtClassInfo::className(), PythonQtPrivate::getClassInfo(), PythonQtMethodInfo::getInnerListTypeName(), PythonQt::priv(), PythonQtInstanceWrapper_Type, and PythonQtUtils::typeName().

PythonQtConvertPythonListToListOfPair()

template<class ListType , class T1 , class T2 >

bool PythonQtConvertPythonListToListOfPair	(	PyObject *	obj,
		void *	outList,
		int	metaTypeId,
		bool
	)

Definition at line 417 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)outList;
  static int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonListToListOfPair: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject* value;
      for (int i = 0; i < count; i++) {
        QPair<T1, T2> pair;
        value = PySequence_GetItem(obj, i);
        if (PythonQtConvertPythonToPair<T1,T2>(value, &pair, innerType, false)) {
          Py_XDECREF(value);
          list->push_back(pair);
        } else {
          Py_XDECREF(value);
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

References PythonQtMethodInfo::getInnerTemplateMetaType(), and PythonQtUtils::typeName().

PythonQtConvertPythonListToListOfValueType()

template<class ListType , class T >

bool PythonQtConvertPythonListToListOfValueType	(	PyObject *	obj,
		void *	outList,
		int	metaTypeId,
		bool
	)

Definition at line 236 of file PythonQtConversion.h.

{
  ListType* list = (ListType*)outList; 
  static const int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonListToListOfValueType: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject* value;
      for (int i = 0;i<count;i++) {
        value = PySequence_GetItem(obj,i);
        // this is quite some overhead, but it avoids having another large switch...
        QVariant v = PythonQtConv::PyObjToQVariant(value, innerType);
        Py_XDECREF(value);
        if (v.isValid()) {
          list->push_back(qvariant_cast<T>(v));
        } else {
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

References PythonQtMethodInfo::getInnerTemplateMetaType(), PythonQtConv::PyObjToQVariant(), and PythonQtUtils::typeName().

PythonQtConvertPythonToIntegerMap()

template<class MapType , class T >

bool PythonQtConvertPythonToIntegerMap	(	PyObject *	val,
		void *	outMap,
		int	metaTypeId,
		bool
	)

Definition at line 478 of file PythonQtConversion.h.

{
  MapType* map = (MapType*)outMap;
  static int innerType = -1;
  if (innerType == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonToIntegerMap: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PyMapping_Check(val)) {
    result = true;
    PyObject* items = PyMapping_Items(val);
    if (items) {
      int count = PyList_Size(items);
      PyObject* value;
      PyObject* key;
      PyObject* tuple;
      for (int i = 0; i < count; i++) {
        tuple = PyList_GetItem(items, i);
        key = PyTuple_GetItem(tuple, 0);
        value = PyTuple_GetItem(tuple, 1);
        
        bool ok;
        int intKey = PythonQtConv::PyObjGetInt(key, false, ok);
        // this is quite some overhead, but it avoids having another large switch...
        QVariant v = PythonQtConv::PyObjToQVariant(value, innerType);
        if (v.isValid() && ok) {
          map->insert(intKey, qvariant_cast<T>(v));
        } else {
          result = false;
          break;
        }
      }
      Py_DECREF(items);
    }
  }
  return result;
}

References PythonQtMethodInfo::getInnerTemplateTypeName(), PythonQtConv::PyObjGetInt(), PythonQtConv::PyObjToQVariant(), and PythonQtUtils::typeName().

PythonQtConvertPythonToPair()

template<class T1 , class T2 >

bool PythonQtConvertPythonToPair	(	PyObject *	obj,
		void *	outPair,
		int	metaTypeId,
		bool
	)

Definition at line 350 of file PythonQtConversion.h.

{
  QPair<T1, T2>* pair = (QPair<T1, T2>*)outPair;
  static int innerType1 = -1;
  static int innerType2 = -1;
  if (innerType1 == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType1 = QMetaType::type(names.at(0).trimmed());
    innerType2 = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType1 == QVariant::Invalid || innerType2 == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonToPair: unknown inner type " << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count == 2) {
      result = true;
      PyObject* value;
 
      value = PySequence_GetItem(obj, 0);
      // this is quite some overhead, but it avoids having another large switch...
      QVariant v = PythonQtConv::PyObjToQVariant(value, innerType1);
      Py_XDECREF(value);
      if (v.isValid()) {
        pair->first = qvariant_cast<T1>(v);
      } else {
        return false;
      }
 
      value = PySequence_GetItem(obj, 1);
      // this is quite some overhead, but it avoids having another large switch...
      v = PythonQtConv::PyObjToQVariant(value, innerType2);
      Py_XDECREF(value);
      if (v.isValid()) {
        pair->second = qvariant_cast<T2>(v);
      } else {
        return false;
      }
    }
  }
  return result;
}

References PythonQtMethodInfo::getInnerTemplateTypeName(), PythonQtConv::PyObjToQVariant(), and PythonQtUtils::typeName().