DAPyObjectWrapper.h

#ifndef DAPYOBJECTWRAPPER_H
#define DAPYOBJECTWRAPPER_H
#include "DAPyBindQtGlobal.h"
#include "DAPybind11InQt.h"
#include <QVariant>
#include <functional>
 
namespace DA
{
class DAPYBINDQT_API DAPyObjectWrapper
{
public:
    using ErrCallback = std::function< void(const char*) >;
 
public:
    DAPyObjectWrapper();
    DAPyObjectWrapper(const DAPyObjectWrapper& obj);
    DAPyObjectWrapper(DAPyObjectWrapper&& obj);
    DAPyObjectWrapper(const pybind11::object& obj);
    DAPyObjectWrapper(pybind11::object&& obj);
    virtual ~DAPyObjectWrapper();
    // 判断是否为none
    bool isNone() const;
    // 操作符
    DAPyObjectWrapper& operator=(const DAPyObjectWrapper& obj);
    DAPyObjectWrapper& operator=(DAPyObjectWrapper&& obj);
    DAPyObjectWrapper& operator=(const pybind11::object& obj);
    DAPyObjectWrapper& operator=(pybind11::object&& obj);
    // 比较操作符
    bool operator==(void* ptr) const;
    bool operator==(const pybind11::object& obj) const;
    bool operator==(const DAPyObjectWrapper& obj) const;
    bool operator!=(void* ptr) const
    {
        return !(*this == ptr);
    }
    bool operator!=(const pybind11::object& obj) const
    {
        return !(*this == obj);
    }
    bool operator!=(const DAPyObjectWrapper& obj) const
    {
        return !(*this == obj);
    }
    // bool操作符可直接进行isNone判断
    explicit operator bool() const;
    // 统一异常处理函数
    void dealException(const std::exception& e) const;
    // 深拷贝
    DAPyObjectWrapper deepCopy() const;
 
public:
    pybind11::object& object()
    {
        return _object;
    }
    const pybind11::object& object() const
    {
        return _object;
    }
 
public:
    // 转换为QVariant
    QVariant toVariant() const;
    // 判断类型
    bool isinstance(const pybind11::handle& type) const;
    bool isInt() const;
    bool isModule() const;
    bool isFloat() const;
    bool isStr() const;
    bool isBool() const;
    bool isList() const;
    bool isDict() const;
    bool isTuple() const;
    bool isCallable() const;
    bool isSequence() const;
    bool isNumeric() const;
    // 设置错误处理回调
    void setErrCallback(const ErrCallback& fun);
    ErrCallback getErrCallback() const;
 
public:
    // 重载
    pybind11::object attr(const char* c_att);
    pybind11::object attr(const char* c_att) const;
    // 方法调用
    template< typename... Args >
    pybind11::object call(Args&&... args);
 
public:
    // 通用的python函数封装
    QString __name__() const;
    QString __str__() const;
    QString __repr__() const;
    // 对象信息
    QString typeName() const;
    size_t refCount() const;
 
protected:
    pybind11::object _object;
    ErrCallback _errcallback;
};
 
template< typename... Args >
pybind11::object DAPyObjectWrapper::call(Args&&... args)
{
    if (!isCallable()) {
        return pybind11::none();
    }
    return _object(std::forward< Args >(args)...);
}
 
}  // namespace DA
Q_DECLARE_METATYPE(DA::DAPyObjectWrapper)
#endif  // DAPYOBJECTWRAPPER_H