/**
 *  Copyright: Copyright QtD Team, 2008-2010
 *  License: Boost Software License 1.0
 */

#ifndef QTD_CORE_H
#define QTD_CORE_H

#include <QAbstractItemModel>

#if defined WIN32
  #define DLL_PUBLIC __declspec(dllexport)
#else
  #define DLL_PUBLIC
#endif

#ifdef CPP_SHARED
  #define QTD_EXPORT(TYPE, NAME, ARGS) \
    extern "C" typedef TYPE (*pf_##NAME)ARGS; \
    extern "C" pf_##NAME qtd_get_##NAME();
  #define QTD_EXPORT_VAR(NAME) \
    pf_##NAME m_##NAME;        \
    extern "C" DLL_PUBLIC pf_##NAME qtd_get_##NAME() { return m_##NAME; }
#define QTD_EXPORT_VAR_SET(NAME, VALUE) \
    m_##NAME = (pf_##NAME) VALUE
#else
  #define QTD_EXPORT(TYPE, NAME, ARGS) \
    extern "C" TYPE NAME ARGS;
#endif

extern uint userDataId;

struct QModelIndexAccessor {
	int row;
	int col;
	void *ptr;
	QAbstractItemModel *model;
};

struct DArray {
    size_t length;
    void* ptr;
};

enum QtdObjectFlags
{
    qNone,
    qNativeOwnership            = 0x01,
    qDOwnership                 = 0x02
    //gcManaged                 = 0x04
};

class DLL_PUBLIC QtdObjectLink
{
public:
    void* dId; // TODO: needs to be atomic

    QtdObjectLink(void* id) : dId(id) {}

    template<typename T>
    static QtdObjectLink* getLink(const T* object)
    {
        return dynamic_cast<QtdObjectLink*>((T*)object);
    }

    template<typename T>
    static void* getDId(const T* object)
    {
        QtdObjectLink *link = getLink((T*)object);
        return link ? link->dId : NULL;
    }
};

class DLL_PUBLIC QObjectLink : public QtdObjectLink, public QObjectUserData
{
public:
    enum Flags
    {
        None,
        CreatedByD = 0x1
    };

    Flags flags;

    QObjectLink(QObject* qObject, void* dId);
    bool createdByD();
    virtual ~QObjectLink();
    void destroyLink(QObject* qObject = NULL);
    static QObjectLink* getLink(const QObject* qObject);
    static void* getDId(const QObject* qObject);
};

#define Array DArray

#ifdef CPP_SHARED
typedef void (*pfunc_abstr)();
#endif

QTD_EXPORT(void, qtd_toUtf8, (const unsigned short* arr, uint size, void* str))
QTD_EXPORT(void, qtd_QtdObject_delete, (void* dId))

#ifdef CPP_SHARED
#define qtd_toUtf8 qtd_get_qtd_toUtf8()
#define qtd_QtdObject_delete qtd_get_qtd_QtdObject_delete()
#endif

extern "C" QModelIndex qtd_to_QModelIndex(QModelIndexAccessor mia);
extern "C" QModelIndexAccessor qtd_from_QModelIndex(const QModelIndex &index);

extern "C" typedef void (*EmitCallback)(void*, void**);
extern "C" typedef int (*QtMetacallCallback)(void *d_entity, QMetaObject::Call _c, int _id, void **_a);
extern "C" typedef const QMetaObject* (*MetaObjectCallback)(void *d_entity);

template <class T>
void call_destructor(T *a)
{
    a->~T();
}

#endif // QTD_CORE_H