#ifndef COMMONUTILS_H
#define COMMONUTILS_H
#include <QPluginLoader>
#include <iostream>
#include <QDebug>
#include <functional>
#include <string>
#include <unordered_map>
using namespace std;
#define qMyDebug() qDebug() << QString("[QDebug] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
#define qMyInfo() qInfo() << QString("[QInfo] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
#define qMyWarning() qWarning() << QString("[QWarning] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
// 单例类模板
template<class T>
class Singleton
{
public:
using object_type = T;
struct object_creator
{
object_creator() { Singleton<T>::GetInstance(); }
};
static object_creator creator_object;
public:
static object_type* GetInstance()
{
static object_type _instance;
return &_instance;
}
};
template<typename T>
typename Singleton<T>::object_creator Singleton<T>::creator_object;
// 定义Object构造函数指针
using CreateObjectFunc = function<void*()>;
struct CreateObjectFuncClass {
explicit CreateObjectFuncClass(CreateObjectFunc func) : create_func(func) {}
CreateObjectFunc create_func;
};
// Object工厂类
class ObjectFactory : public Singleton<ObjectFactory> {
public:
//返回void *减少了代码的耦合
void* CreateObject(const string& class_name) {
CreateObjectFunc createobj = nullptr;
if (create_funcs_.find(class_name) != create_funcs_.end())
createobj = create_funcs_.find(class_name)->second->create_func;
if (createobj == nullptr)
return nullptr;
// 调用函数指针指向的函数 调用REGISTER_CLASS中宏的绑定函数，也就是运行new className代码
return createobj();
}
void RegisterObject(const string& class_name, CreateObjectFunc func) {
auto it = create_funcs_.find(class_name);
if (it != create_funcs_.end())
create_funcs_[class_name]->create_func = func;
else
create_funcs_.emplace(class_name, new CreateObjectFuncClass(func));
}
~ObjectFactory() {
for (auto it : create_funcs_)
{
if (it.second != nullptr)
{
delete it.second;
it.second = nullptr;
}
}
create_funcs_.clear();
}
private:
// 缓存类名和生成类实例函数指针的map
unordered_map<string, CreateObjectFuncClass* > create_funcs_;
};
#define REGISTERPANELCLASS(className) \
class className##PanelHelper { \
public: \
className##PanelHelper() \
{ \
ObjectFactory::GetInstance()->RegisterObject(#className, []() \
{ \
auto* obj = new className(); \
obj->SetClassName(#className); \
return obj; \
}); \
} \
}; \
className##PanelHelper g_##className##_panelhelper;// 初始化一个helper的全局变量，执行构造函数中的RegisterObject执行。
class CommonUtils
{
public:
CommonUtils();
~CommonUtils();
template<typename T>
static T* loadOnePlugin(const QString& strPuginPath)
{
QPluginLoader pluginLoader(strPuginPath);
QObject *plugin = pluginLoader.instance();
T* t = qobject_cast<T*>(plugin);
if (t == Q_NULLPTR)
{
qMyInfo() << pluginLoader.errorString();
}
return t;
}
};
#endif // COMMONUTILS_H
#define qFcDebug() qDebug() << QString("[QDebug] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
//#define qFcInfo() qInfo() << QString("[QInfo] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
#ifdef QT_NO_DEBUG
#define qFcInfo() qInfo() << QString("[QInfo] %1::%2 %3\n").arg(static_cast<const char *>(__FILE__)).arg(static_cast<const char *>(Q_FUNC_INFO)).arg(__LINE__).toUtf8().data()
#else
#define qFcInfo() qInfo() << QString("[QInfo] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
#endif
#define qFcWarning() qWarning() << QString("[QWarning] %1::%2 %3\n").arg(QT_MESSAGELOG_FILE).arg(QT_MESSAGELOG_FUNC).arg(QT_MESSAGELOG_LINE).toUtf8().data()
