头文件中定义枚举类型并设置Q_ENUMS
#ifndef TEST_H
#define TEST_H
#include <QObject>
#include <QMetaEnum>
class Test : public QObject
{
Q_OBJECT
Q_ENUMS(TestType) //[1]
public:
explicit Test(QObject *parent = nullptr);
enum TestType
{
TEST_ONE,
TEST_TWO,
TEST_THREE
};
signals:
public slots:
void DoTest(QString command);
};
#endif // TEST_H
源文件中的调用方式：
#include "test.h"
#include <QDebug>
Test::Test(QObject *parent) : QObject(parent)
{
}
void Test::DoTest(QString command)
{
//[2] QMetaObject是用来保存Qt元对象的元信息，当继承QObject类并使用宏Q_OBJECT时，创建的类产生一个静态QMetaObject实例staticMetaObject，这个实例会保存类名、信号名称及索引、槽的名字及索引等等在对象操作时需要的基本信息
QMetaObject object = this->staticMetaObject;
QMetaEnum MeteEnum = object.enumerator(
object.indexOfEnumerator("Tests")); //[3]
switch (MeteEnum.keysToValue(command.toLatin1())) //[4]
{
case TEST_ONE:
qDebug() << "TEST 1";
break;
case TEST_TWO:
qDebug() << "TEST 2";
break;
case TEST_THREE:
qDebug() << "TEST 3";
break;
default:
qDebug() << "TEST NONE";
break;
}
}
测试程序调用类：
#include <QCoreApplication>
#include "test.h"
int main(int argc, char *argv[])
{
QCoreApplication a(argc, argv);
Test cTest;
cTest.DoTest(QString("sfe"));
cTest.DoTest(QString("TEST1"));
return a.exec();
}
原文地址：https://www.cnblogs.com/svenzhang9527/p/10806957.html