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/***************************************************************************
* pythonvariant.h
* This file is part of the KDE project
* copyright (C)2004-2005 by Sebastian Sauer (mail@dipe.org)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
* This program 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
* Library General Public License for more details.
* You should have received a copy of the GNU Library General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
***************************************************************************/
#ifndef KROSS_PYTHONVARIANT_H
#define KROSS_PYTHONVARIANT_H
#include "pythonconfig.h"
#include "pythonobject.h"
#include <kross/core/metatype.h>
#include <QString>
#include <QStringList>
#include <QVariant>
#include <QMetaType>
#include <QSize>
#include <QPoint>
#include <QRect>
#include <QUrl>
#include <QDate>
#include <QTime>
#include <QDateTime>
#include <QtGui/QColor>
#include <typeinfo>
namespace Kross {
/**
* The PythonType helper classes used to cast between QVariant
* and Py::Object values.
*
* Following QVariant::Type's are implemented;
* \li QVariant::Invalid
* \li QVariant::Int
* \li QVariant::UInt
* \li QVariant::Double
* \li QVariant::Bool
* \li QVariant::LongLong
* \li QVariant::ULongLong
* \li QVariant::ByteArray
* \li QVariant::Size
* \li QVariant::SizeF
* \li QVariant::Point
* \li QVariant::PointF
* \li QVariant::Rect
* \li QVariant::RectF
* \li QVariant::Color
* \li QVariant::Url
* \li QVariant::Date
* \li QVariant::Time
* \li QVariant::DateTime
* \li QVariant::String
* \li QVariant::StringList
* \li QVariant::List
* \li QVariant::Map
*
* Following QVariant::Type's are unimplemented yet (do we need them anyways?);
* \li QVariant::BitArray
* \li QVariant::Bitmap
* \li QVariant::Brush
* \li QVariant::Char
* \li QVariant::Cursor
* \li QVariant::Font
* \li QVariant::Icon
* \li QVariant::Image
* \li QVariant::KeySequence
* \li QVariant::Line
* \li QVariant::LineF
* \li QVariant::Locale
* \li QVariant::Palette
* \li QVariant::Pen
* \li QVariant::Pixmap
* \li QVariant::PointArray
* \li QVariant::Polygon
* \li QVariant::RegExp
* \li QVariant::Region
* \li QVariant::SizePolicy
* \li QVariant::TextFormat
* \li QVariant::TextLength
*/
template<typename VARIANTTYPE, typename PYTYPE = Py::Object>
struct PythonType
{
// template-specialisations need to implement following both static
// functions to translate between QVariant and Py::Object objects.
//inline static PYTYPE toPyObject(const VARIANTTYPE&) { return Py::None(); }
//inline static QVARIANTTYPE toVariant(const VARIANTTYPE&) { return QVariant(); }
};
/// \internal
template<>
struct PythonType<QVariant>
{
static Py::Object toPyObject(const QVariant& v);
static QVariant toVariant(const Py::Object& obj);
};
/// \internal
template<>
struct PythonType<int>
{
inline static Py::Object toPyObject(int i) {
return Py::Int(i);
}
inline static int toVariant(const Py::Object& obj) {
return int(Py::Int(obj));
}
};
/// \internal
template<>
struct PythonType<uint>
{
inline static Py::Object toPyObject(uint i) {
return Py::Long( (unsigned long)i );
}
inline static uint toVariant(const Py::Object& obj) {
return uint( (unsigned long)Py::Long(obj) );
}
};
/// \internal
template<>
struct PythonType<double>
{
inline static Py::Object toPyObject(double d) {
return Py::Float(d);
}
inline static double toVariant(const Py::Object& obj) {
return double(Py::Float(obj));
}
};
/// \internal
template<>
struct PythonType<bool>
{
inline static Py::Object toPyObject(bool b) {
return Py::Int(b);
}
inline static bool toVariant(const Py::Object& obj) {
return bool(Py::Int(obj));
}
};
/// \internal
template<>
struct PythonType<qlonglong>
{
inline static Py::Object toPyObject(qlonglong l) {
return Py::Long( (long)l );
}
inline static qlonglong toVariant(const Py::Object& obj) {
return (long) Py::Long(obj);
}
};
/// \internal
template<>
struct PythonType<qulonglong>
{
inline static Py::Object toPyObject(qulonglong l) {
return Py::Long( (unsigned long)l );
}
inline static qulonglong toVariant(const Py::Object& obj) {
return (unsigned long) Py::Long(obj);
}
};
/// \internal
template<>
struct PythonType<QByteArray>
{
inline static Py::Object toPyObject(const QByteArray& ba) {
return Py::String(ba.constData(), ba.size());
}
inline static QByteArray toVariant(const Py::Object& obj) {
int size = PyString_Size(obj.ptr());
if( size >= 0 )
return QByteArray(PyString_AS_STRING(obj.ptr()), size);
if( strcmp(Py::Object(PyObject_Type(obj.ptr()),true).repr().as_string().c_str(),"<class 'PyQt4.QtCore.QByteArray'>") == 0 )
return PythonType<QByteArray>::toVariant( Py::Callable(obj.getAttr("data")).apply() );
return QByteArray();
}
};
/// \internal
template<>
struct PythonType<QString>
{
inline static Py::Object toPyObject(const QString& s) {
return s.isNull() ? Py::None() : Py::String(s.toUtf8().data());
}
inline static QString toVariant(const Py::Object& obj) {
#ifdef Py_USING_UNICODE
if(PyUnicode_CheckExact(obj.ptr())) {
Py_UNICODE* t = PyUnicode_AsUnicode(obj.ptr());
QString s;
if(sizeof(Py_UNICODE) == 4) {
quint32* ucs4 = (quint32*) t;
s = "";
while(*ucs4 != 0) {
s += QChar( (quint16) * ucs4 );
++ucs4;
}
}
else
s.setUtf16( (quint16*)t, sizeof(t) / 4 );
return s;
}
#endif
if( obj.isString() )
return QString::fromUtf8(Py::String(obj).as_string().c_str());
if( strcmp(Py::Object(PyObject_Type(obj.ptr()),true).repr().as_string().c_str(),"<class 'PyQt4.QtCore.QString'>") == 0 )
return PythonType<QString>::toVariant( Py::Callable(obj.getAttr("__str__")).apply() );
return QString();
}
};
/// \internal
template<>
struct PythonType<QStringList>
{
inline static Py::Object toPyObject(const QStringList& sl) {
Py::List l;
foreach(QString s, sl)
l.append( PythonType<QString>::toPyObject(s) );
return l;
}
inline static QStringList toVariant(const Py::Object& obj) {
Py::List list(obj);
QStringList l;
const uint length = list.length();
for(uint i = 0; i < length; i++)
l.append( Py::String(list[i]).as_string().c_str() );
return l;
}
};
/// \internal
template<>
struct PythonType<QVariantList,Py::List>
{
inline static Py::List toPyObject(const QVariantList& list) {
Py::List l;
foreach(QVariant v, list)
l.append( PythonType<QVariant>::toPyObject(v) );
return l;
}
inline static QVariantList toVariant(const Py::List& list) {
QVariantList l;
const uint length = list.length();
for(uint i = 0; i < length; i++)
l.append( PythonType<QVariant>::toVariant(list[i]) );
return l;
}
};
/// \internal
template<>
struct PythonType<QVariantList>
{
inline static Py::Object toPyObject(const QVariantList& list) {
return PythonType<QVariantList,Py::List>::toPyObject(list);
}
inline static QVariantList toVariant(const Py::Object& obj) {
return PythonType<QVariantList,Py::List>::toVariant(Py::List(obj));
}
};
/// \internal
template<>
struct PythonType<QVariantList,Py::Tuple>
{
inline static Py::Tuple toPyObject(const QVariantList& list) {
uint count = list.count();
Py::Tuple tuple(count);
for(uint i = 0; i < count; ++i)
tuple.setItem(i, PythonType<QVariant>::toPyObject(list[i]));
return tuple;
}
inline static QVariantList toVariant(const Py::Tuple& tuple) {
QVariantList l;
const uint size = tuple.size();
for(uint i = 0; i < size; i++)
l.append( PythonType<QVariant>::toVariant(tuple[i]) );
return l;
}
};
/// \internal
template<>
struct PythonType<QVariantMap,Py::Dict>
{
inline static Py::Dict toPyObject(const QVariantMap& map) {
Py::Dict d;
for(QMap<QString, QVariant>::ConstIterator it = map.constBegin(); it != map.constEnd(); ++it)
d.setItem( it.key().toLatin1().data(), PythonType<QVariant>::toPyObject(it.value()) );
return d;
}
inline static QVariantMap toVariant(const Py::Dict& dict) {
QVariantMap map;
Py::List l = dict.keys();
const uint length = l.length();
for(Py::List::size_type i = 0; i < length; ++i) {
const char* n = l[i].str().as_string().c_str();
map.insert( n, PythonType<QVariant>::toVariant(dict[n]) );
}
return map;
}
};
/// \internal
template<>
struct PythonType<QVariantMap>
{
inline static Py::Object toPyObject(const QVariantMap& map) {
return PythonType<QVariantMap,Py::Dict>::toPyObject(map);
}
inline static QVariantMap toVariant(const Py::Object& obj) {
return PythonType<QVariantMap,Py::Dict>::toVariant( Py::Dict(obj.ptr()) );
}
};
/// \internal
template<>
struct PythonType<QSize>
{
inline static Py::Object toPyObject(const QSize& size) {
Py::List list;
list.append( PythonType<int>::toPyObject(size.width()) );
list.append( PythonType<int>::toPyObject(size.height()) );
return list;
}
inline static QSize toVariant(const Py::Object& obj) {
Py::List list(obj);
return QSize(PythonType<int>::toVariant(list[0]), PythonType<int>::toVariant(list[1]));
}
};
/// \internal
template<>
struct PythonType<QSizeF>
{
inline static Py::Object toPyObject(const QSizeF& size) {
Py::List list;
list.append( PythonType<double>::toPyObject(size.width()) );
list.append( PythonType<double>::toPyObject(size.height()) );
return list;
}
inline static QSizeF toVariant(const Py::Object& obj) {
Py::List list(obj);
return QSizeF(PythonType<double>::toVariant(list[0]), PythonType<double>::toVariant(list[1]));
}
};
/// \internal
template<>
struct PythonType<QPoint>
{
inline static Py::Object toPyObject(const QPoint& point) {
Py::List list;
list.append( PythonType<int>::toPyObject(point.x()) );
list.append( PythonType<int>::toPyObject(point.y()) );
return list;
}
inline static QPoint toVariant(const Py::Object& obj) {
Py::List list(obj);
return QPoint(PythonType<int>::toVariant(list[0]), PythonType<int>::toVariant(list[1]));
}
};
/// \internal
template<>
struct PythonType<QPointF>
{
inline static Py::Object toPyObject(const QPointF& point) {
Py::List list;
list.append( PythonType<double>::toPyObject(point.x()) );
list.append( PythonType<double>::toPyObject(point.y()) );
return list;
}
inline static QPointF toVariant(const Py::Object& obj) {
Py::List list(obj);
return QPointF(PythonType<double>::toVariant(list[0]), PythonType<double>::toVariant(list[1]));
}
};
/// \internal
template<>
struct PythonType<QRect>
{
inline static Py::Object toPyObject(const QRect& rect) {
Py::List list;
list.append( PythonType<int>::toPyObject(rect.x()) );
list.append( PythonType<int>::toPyObject(rect.y()) );
list.append( PythonType<int>::toPyObject(rect.width()) );
list.append( PythonType<int>::toPyObject(rect.height()) );
return list;
}
inline static QRect toVariant(const Py::Object& obj) {
Py::List list(obj);
return QRect(PythonType<int>::toVariant(list[0]), PythonType<int>::toVariant(list[1]),
PythonType<int>::toVariant(list[2]), PythonType<int>::toVariant(list[3]));
}
};
/// \internal
template<>
struct PythonType<QRectF>
{
inline static Py::Object toPyObject(const QRectF& rect) {
Py::List list;
list.append( PythonType<double>::toPyObject(rect.x()) );
list.append( PythonType<double>::toPyObject(rect.y()) );
list.append( PythonType<double>::toPyObject(rect.width()) );
list.append( PythonType<double>::toPyObject(rect.height()) );
return list;
}
inline static QRectF toVariant(const Py::Object& obj) {
Py::List list(obj);
return QRectF(PythonType<double>::toVariant(list[0]), PythonType<double>::toVariant(list[1]),
PythonType<double>::toVariant(list[2]), PythonType<double>::toVariant(list[3]));
}
};
/// \internal
template<>
struct PythonType<QColor>
{
inline static Py::Object toPyObject(const QColor& color) {
return color.isValid() ? PythonType<QString>::toPyObject(color.name()) : Py::None();
}
inline static QColor toVariant(const Py::Object& obj) {
if( strcmp(Py::Object(PyObject_Type(obj.ptr()),true).repr().as_string().c_str(),"<class 'PyQt4.QtGui.QColor'>") == 0 )
return PythonType<QColor>::toVariant( Py::Callable(obj.getAttr("name")).apply() );
return QColor(PythonType<QString>::toVariant(obj));
}
};
/// \internal
template<>
struct PythonType<QUrl>
{
inline static Py::Object toPyObject(const QUrl& url) {
return PythonType<QString>::toPyObject( url.toString() );
}
inline static QUrl toVariant(const Py::Object& obj) {
if( ! obj.isString() )
if( strcmp(Py::Object(PyObject_Type(obj.ptr()),true).repr().as_string().c_str(),"<class 'PyQt4.QtCore.QUrl'>") == 0 )
return PythonType<QString>::toVariant( Py::Callable(obj.getAttr("toString")).apply() );
return QUrl( PythonType<QString>::toVariant(obj) );
}
};
/// \internal
template<>
struct PythonType<QDateTime>
{
inline static Py::Object toPyObject(const QDateTime& datetime) {
return PythonType<QString>::toPyObject( datetime.toString(Qt::ISODate) );
}
inline static QDateTime toVariant(const Py::Object& obj) {
return QDateTime::fromString(PythonType<QString>::toVariant(obj), Qt::ISODate);
}
};
/// \internal
template<>
struct PythonType<QTime>
{
inline static Py::Object toPyObject(const QTime& time) {
return PythonType<QString>::toPyObject( time.toString(Qt::ISODate) );
}
inline static QTime toVariant(const Py::Object& obj) {
return QTime::fromString(PythonType<QString>::toVariant(obj), Qt::ISODate);
}
};
/// \internal
template<>
struct PythonType<QDate>
{
inline static Py::Object toPyObject(const QDate& date) {
return PythonType<QString>::toPyObject( date.toString(Qt::ISODate) );
}
inline static QDate toVariant(const Py::Object& obj) {
return QDate::fromString(PythonType<QString>::toVariant(obj), Qt::ISODate);
}
};
/*
/// \internal
template<>
struct PythonType<QDate>
{
inline static Py::Object toPyObject(const QDate& d) {
Py::Module mod( PyImport_ImportModule((char*)"datetime"), true );
PyObject* result = PyObject_CallMethod(mod.ptr(),(char*)"date","iii",d.year(),d.month(),d.day());
return Py::Object(result, true);
}
inline static QDate toVariant(const Py::Object& obj) {
return QDate( Py::Int(obj.getAttr("year")), Py::Int(obj.getAttr("month")), Py::Int(obj.getAttr("day")) );
}
};
/// \internal
template<>
struct PythonType<QTime>
{
inline static Py::Object toPyObject(const QTime& t) {
Py::Module mod( PyImport_ImportModule((char*)"datetime"), true );
PyObject* result = PyObject_CallMethod(mod.ptr(),(char*)"time",(char*)"iii",t.hour(),t.minute(),t.second());
return Py::Object(result, true);
}
inline static QTime toVariant(const Py::Object& obj) {
return QTime( Py::Int(obj.getAttr("hour")), Py::Int(obj.getAttr("minute")), Py::Int(obj.getAttr("second")) );
}
};
/// \internal
template<>
struct PythonType<QDateTime>
{
inline static Py::Object toPyObject(const QDateTime& dt) {
QDate d = dt.date();
QTime t = dt.time();
Py::Module mod( PyImport_ImportModule((char*)"datetime"), true );
PyObject* result = PyObject_CallMethod(mod.ptr(),(char*)"datetime",(char*)"iiiiii",d.year(),d.month(),d.day(),t.hour(),t.minute(),t.second());
return Py::Object(result, true);
}
inline static QDateTime toVariant(const Py::Object& obj) {
return QDateTime( PythonType<QDate>::toVariant(obj), PythonType<QTime>::toVariant(obj) );
}
};
*/
/*
/// \internal
template<>
struct PythonType<QObject>
{
inline static Py::Object toPyObject(QObject* obj) {
return Py::asObject( new PythonExtension(obj) );
}
inline static QVariant toVariant(int typeId, const Py::Object& obj) {
if(Py::PythonExtension<PythonExtension>::check( obj )) {
Py::ExtensionObject<PythonExtension> extobj(object);
PythonExtension* extension = extobj.extensionObject();
return QVariant(typeId, extension->object());
}
return QVariant();
}
inline static QVariant toVariant(const Py::Object& obj) {
if(Py::PythonExtension<PythonExtension>::check( obj )) {
Py::ExtensionObject<PythonExtension> extobj(object);
PythonExtension* extension = extobj.extensionObject();
QObject* o = extension->object();
int typeId = QMetaType::type( o->metaObject()->className() );
return QVariant(typeId, o);
}
return QVariant();
}
};
*/
/*
/// \internal
template<>
struct PythonType< void* >
{
inline static Py::Object toPyObject(void* p) {
PyObject* pyobj = PyLong_FromVoidPtr(p);
return Py::asObject(pyobj);
}
inline static QVariant toVariant(int varianttypeid, const Py::Long& obj) {
void* p = PyLong_AsVoidPtr(obj.ptr());
return QVariant(varianttypeid, p);
}
};
*/
/**
* The PythonMetaTypeFactory helper class is used as factory within
* \a PythonExtension to translate an argument into a \a MetaType
* needed for QGenericArgument's data pointer.
*/
class PythonMetaTypeFactory
{
public:
static MetaType* create(const char* typeName, const Py::Object& object = Py::Object(), bool owner = false);
};
/// \internal
template<typename VARIANTTYPE>
class PythonMetaTypeVariant : public MetaTypeVariant<VARIANTTYPE>
{
public:
PythonMetaTypeVariant(const Py::Object& obj)
: MetaTypeVariant<VARIANTTYPE>(
obj.isNone()
? QVariant().value<VARIANTTYPE>()
: PythonType<VARIANTTYPE>::toVariant(obj)
) {}
virtual ~PythonMetaTypeVariant() {}
};
}
#endif
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