MFC：如何使用Boost.Signal2在Document-View结构中添加事件响应机制

 

传统方式

 

1. XXDoc.h

//...class CXXDoc : public CDocument{//...// Operationspublic:void Foo1();void Foo2();void Foo3();//...};

2. XXDoc.cpp

//...void CXXDoc::Foo1(){// Do Foo1}void CXXDoc::Foo2(){// Do Foo2}void CXXDoc::Foo3(){// Do Foo3}

3. XXView.h

//...class CXXView : public CView{//...protected://...afx_msg void OnFoo1();afx_msg void OnFoo2();afx_msg void OnFoo3();//...};

4. XXView.cpp

//...void CXXView::OnFoo1(){GetDocument()->Foo1();Invalidate();}void CXXView::OnFoo2(){GetDocument()->Foo2();Invalidate();}void CXXView::OnFoo3(){GetDocument()->Foo3();Invalidate();}

新方式

 

1. XXDoc.h

#include <boost/signals2.hpp>//...class CXXDoc : public CDocument{//...// Attributespublic:boost::signals2::signal<void()> m_sigDocChanged;// Operationspublic:void Foo1();void Foo2();void Foo3();//...};

2. XXDoc.cpp

//...void CXXDoc::Foo1(){// Do Foo1m_sigDocChanged();}void CXXDoc::Foo2(){// Do Foo2m_sigDocChanged();}void CXXDoc::Foo3(){// Do Foo3m_sigDocChanged();}

3. XXView.h

//...class CXXView : public CView{//...public:virtual void OnInitialUpdate();protected:void OnDocChanged();//...afx_msg void OnFoo1();afx_msg void OnFoo2();afx_msg void OnFoo3();//...};

4. XXView.cpp

//...void CXXView::OnInitialUpdate(){CView::OnInitialUpdate();GetDocument()->m_sigDocChanged.connect(std::bind(&CXXView::OnDocChanged, this));}void CXXView::OnDocChanged(){Invalidate();}void CXXView::OnFoo1(){GetDocument()->Foo1();}void CXXView::OnFoo2(){GetDocument()->Foo2();}void CXXView::OnFoo3(){GetDocument()->Foo3();}