啥也不说 直接上码：

#ifndefHTREEVIEW_H

#defineHTREEVIEW_H

#include<QTreeView>

classHTreeView:publicQTreeView

{

Q_OBJECT

public:

HTreeView();

~HTreeView();

voidmousePressEvent(QMouseEvent*event);

signals:

voidleftClicked(QMouseEvent*event);

voidrightClicked(QMouseEvent*event);

};

#endif//HTREEVIEW_H

cpp里面：

#include"htreeview.h"

#include<QMouseEvent>

HTreeView::HTreeView():QTreeView()

{

//connect(this,SIGNAL(mousePressEvent(QMouseEvent*)),this,SLOT(leftClicked(QMouseEvent*)));

//connect(this,SIGNAL(mousePressEvent(QMouseEvent*)),this,SLOT(rightClicked(QMouseEvent*)));

}

HTreeView::~HTreeView()

{

}

voidHTreeView::mousePressEvent(QMouseEvent*event)

{

//先调用父类实现选中等功能

QTreeView::mousePressEvent(event);//这里要先调用父类的实现 这样 选中 等很多就已经完成

if(event->button()==Qt::LeftButton)

{

emitthis->leftClicked(event);

}

if(event->button()==Qt::RightButton)

{

emitthis->rightClicked(event);

}

}

调用展示为：

    //展示菜单的事件应该为单机

connect(treeView,SIGNAL(rightClicked(QMouseEvent*)),

this,SLOT(show_contextmenu(QMouseEvent*)));//右键事件