這是一個(gè)很好的東西。

話不多說(shuō)，運(yùn)行截圖如下：

代碼如下：

widget.h

#ifndef WIDGET_H #define WIDGET_H#include <QWidget> #include <QMenu> #include <QAction>namespace Ui { class Widget; }class Widget : public QWidget {Q_OBJECTprivate slots:void OnListContextMenu(const QPoint& pt);public:enum{THE_FIST,THE_SECOND,THE_THIRD,THE_FOURTH,THE_FIFTH};explicit Widget(QWidget *parent = 0);~Widget();private:Ui::Widget *ui; };#endif // WIDGET_H

widget.cpp

#include "widget.h" #include "ui_widget.h"Widget::Widget(QWidget *parent) :QWidget(parent),ui(new Ui::Widget) {ui->setupUi(this);ui->treeWidget->setHeaderLabel(tr("第一列"));QTreeWidgetItem *newItem1=new QTreeWidgetItem(THE_FIST);newItem1->setText(0,"第一頂部的結(jié)點(diǎn)");QTreeWidgetItem *newItem2=new QTreeWidgetItem(THE_SECOND);newItem2->setText(0,"第二頂部的結(jié)點(diǎn)");QTreeWidgetItem *newItem3=new QTreeWidgetItem(THE_THIRD);newItem3->setText(0,"第三頂部的結(jié)點(diǎn)");QTreeWidgetItem *newItem4=new QTreeWidgetItem(THE_FOURTH);newItem4->setText(0,"第四頂部的結(jié)點(diǎn)");QTreeWidgetItem *newItem5=new QTreeWidgetItem(THE_FIFTH);newItem5->setText(0,"第五頂部的結(jié)點(diǎn)");ui->treeWidget->addTopLevelItem(newItem1);newItem1->addChild(newItem2);newItem2->addChild(newItem3);newItem3->addChild(newItem4);newItem4->addChild(newItem5);// 右鍵菜單支持ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);connect(ui->treeWidget,SIGNAL(customContextMenuRequested(const QPoint&)),this,SLOT(OnListContextMenu(const QPoint&))); }void Widget::OnListContextMenu(const QPoint& pt){QMenu menu;if(ui->treeWidget->currentItem()->type()==THE_FIST){menu.addAction(tr("我是老大"));}else if(ui->treeWidget->currentItem()->type()==THE_SECOND){menu.addAction(tr("我是老二"));}else if(ui->treeWidget->currentItem()->type()==THE_THIRD){menu.addAction(tr("我是老三"));}else if(ui->treeWidget->currentItem()->type()==THE_FOURTH){menu.addAction(tr("我是老四"));}else{menu.addAction(tr("我是老五"));}menu.exec(ui->treeWidget->mapToGlobal(pt)); }Widget::~Widget() {delete ui; }

main.cpp

#include "widget.h" #include <QApplication>int main(int argc, char *argv[]) {QApplication a(argc, argv);Widget w;w.show();return a.exec(); }

總結(jié)

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