QT实现添加右键菜单功能

目录

1.添加头文件

2.添加.h文件代码

3.添加.cpp文件代码

删除文件功能

4.效果

1.添加头文件

#include <QContextMenuEvent>
#include <QProcess>
#include <QTableView>
#include <QModelIndex>

2.添加.h文件代码

public:QTableView *tbView1;QStandardItemModel *model1;
protected:virtual void contextMenuEvent(QContextMenuEvent *event);  //右键菜单事件private slots:

3.添加.cpp文件代码

void Softdog::contextMenuEvent(QContextMenuEvent *event)
{if(!tbView1->isHidden()){  //当前在解密文件夹解密//创建一个菜单 添加事件QMenu *menu1 = new QMenu(tbView1);QAction *openFile = new QAction("打开",tbView1);QAction *deleteFile = new QAction("删除",tbView1);QAction *cancel = new QAction("取消",tbView1);
//    QMenu *menu1 = new QMenu(tWidget);
//    QAction *openFile = new QAction("打开",tWidget);
//    QAction *cancel = new QAction("取消",tWidget);menu1->addAction(openFile);menu1->addAction(deleteFile);menu1->addAction(cancel);//    QPoint pt = tbView1->mapFromGlobal(QCursor::pos());
//    openfile_rownum = tbView1->indexAt(pt).row();QModelIndex index = tbView1->selectionModel()->currentIndex();openfile_rownum = index.row();//    qDebug() << "openfile_rownum:" << openfile_rownum;deletefile_rownum = openfile_rownum;connect(openFile,SIGNAL(triggered(bool)),this,SLOT(openfile()));connect(deleteFile,SIGNAL(triggered(bool)),this,SLOT(handle_deletefile()));connect(cancel,SIGNAL(triggered(bool)),this,SLOT(cancel()));//让菜单移动鼠标位置并显示menu1->exec(QCursor::pos());}
}

删除文件功能

void Softdog::handle_deletefile()
{//    qDebug() <<"deletefile:" << deletefile_rownum;QString path = pathList[deletefile_rownum];
//    qDebug() << "path:" << path <<";";QString cout = QString::number( pathList.count(),10);//    qDebug() << "count:" << pathList.count();deletefile(path);//重新加载read_dir(privateName,privatePath);//并删除没有更新的最后一栏model1->removeRow(pathList.count());}bool Softdog::deletefile(const QString &path)
{if(path.isEmpty()){return false;}if(deletefile_rownum == -1){return false;}
//    QDir dir(path);
//    if(!dir.exists()){
//        return true;
//    }
//    if(deletefile_rownum >= 0){//        dir.setFilter(QDir::AllEntries | QDir::NoDotAndDotDot );
//        QFileInfoList fileList = dir.entryInfoList();
//        foreach (QFileInfo file, fileList) {//            if(file.isFile()){ //是文件，删除
//                file.dir().remove(file.fileName());//                qDebug() << file.fileName();
//                QProcess *pro_del=new QProcess;
//                pro_del->start("rm "+file.fileName());//            }
//            else{   //递归删除
//                deletefile(dir.absolutePath());
//            }
//        }
//    }
//    return dir.rmpath(dir.absolutePath()) ;QProcess *pro_del=new QProcess;pro_del->start("rm -rf "+path);pro_del->waitForFinished(3000);return true;
}

4.效果