61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
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/**
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*\file selectorManager.h
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*
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*\brief 所有的selector管理类,采用单例模式
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* 每个selector只需实例一个对象，根据具体要实现的内容进行创建和选择
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*\author dsc
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*/
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#ifndef SELECTORMANAGER_H
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#define SELECTORMANAGER_H
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#include <QObject>
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#include "baseSelector.h"
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#include "global.h"
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class SelectorManager : public QObject
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{
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Q_OBJECT
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public:
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SelectorManager(QObject *parent = 0);
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~SelectorManager();
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public:
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static SelectorManager* getInstance();
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void setWorkingSelector(SelectorType s) { m_curSelector=s; }
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BaseSelector* getWorkingSelector(); //根据操作方式获取selector
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void setDrawGraphicsItem(GraphicsItemType);
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public slots:
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void onSignal_setWorkingSelector(SelectorType);
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private:
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/*
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程序在结束的时候，系统会自动析构所有的全局变量，系统也会析构掉所有的类的静态成员变量，
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所以可以在单例类中定义一个这样的静态成员变量，它唯一的工作就是在析构函数中删除单例类的实例
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*/
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class CGarbo //它的唯一函数就是在析构函数中删除vsBaseData的实例
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{
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public:
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CGarbo() {};
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~CGarbo()
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{
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if (m_pInstance != nullptr)
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{
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//qDebug()<<"goodbye CGarbo";
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delete m_pInstance;
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m_pInstance = nullptr;
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}
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}
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};
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private:
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static SelectorManager* m_pInstance;
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SelectorType m_curSelector;
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QVector<BaseSelector*> m_vecSelectors;
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};
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#endif
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