feat: 添加ElaWidgetTool库

ElaWidgetTools/ElaSingleton.h

@@ -0,0 +1,59 @@
+#ifndef ELASINGLETON_H
+#define ELASINGLETON_H
+
+#include <QMutex>
+
+template <typename T>
+class Singleton
+{
+public:
+    static T* getInstance();
+
+private:
+    Q_DISABLE_COPY(Singleton)
+};
+
+template <typename T>
+T* Singleton<T>::getInstance()
+{
+    static QMutex mutex;
+    QMutexLocker locker(&mutex);
+    static T* instance = nullptr;
+    if (instance == nullptr)
+    {
+        instance = new T();
+    }
+    return instance;
+}
+
+#define Q_SINGLETON_CREATE(Class)               \
+private:                                        \
+    friend class Singleton<Class>;              \
+                                                \
+public:                                         \
+    static Class* getInstance()                 \
+    {                                           \
+        return Singleton<Class>::getInstance(); \
+    }
+
+#define Q_SINGLETON_CREATE_H(Class) \
+private:                            \
+    static Class* _instance;        \
+                                    \
+public:                             \
+    static Class* getInstance();
+
+#define Q_SINGLETON_CREATE_CPP(Class)  \
+    Class* Class::_instance = nullptr; \
+    Class* Class::getInstance()        \
+    {                                  \
+        static QMutex mutex;           \
+        QMutexLocker locker(&mutex);   \
+        if (_instance == nullptr)      \
+        {                              \
+            _instance = new Class();   \
+        }                              \
+        return _instance;              \
+    }
+
+#endif // ELASINGLETON_H