QT-树状控件-QQ好友列表

dialog.h:

#ifndef DIALOG_H

#define DIALOG_H

#include 

#include

#include

class Dialog : public QDialog

{

    Q_OBJECT

public:

    Dialog(QWidget *parent = 0);

    ~Dialog();

public slots:

    void item_DblClicked(QTreeWidgetItem *item,int column);

private:

    QTreeWidget *tree;

};

#endif // DIALOG_H

dialog.cpp:

#include "dialog.h"

#include

#include

#include

Dialog::Dialog(QWidget *parent)

    : QDialog(parent)

{

    tree=new QTreeWidget(this);

    tree->setColumnCount(2);

    tree->setHeaderHidden(true);

    QTreeWidgetItem *Friend=new QTreeWidgetItem(tree,QStringList(QString("舍友")));

   QTreeWidgetItem *frd=new QTreeWidgetItem(Friend);

   frd->setText(0,"黄老板");

   frd->setIcon(0,QIcon(tr(":/zhang.jpg")));

   QTreeWidgetItem *qin=new QTreeWidgetItem(Friend);

   qin->setText(0,"秦狗");

   qin->setIcon(0,QIcon(":/qin.jpg"));

   QTreeWidgetItem *liu=new QTreeWidgetItem(Friend);

   liu->setText(0,"嘉旭");

   liu->setIcon(0,QIcon(":/liu.jpg"));

   QTreeWidgetItem * ClassMate=new QTreeWidgetItem(tree,QStringList(QString("女票")));

   QTreeWidgetItem *Ruru=new QTreeWidgetItem(QStringList(QString("如如")));

   Ruru->setIcon(0,QIcon(tr(":/stu.jpg")));

   ClassMate->addChild(Ruru);

   QTreeWidgetItem *stranger=new QTreeWidgetItem(tree);

   stranger->setText(0,"陌生人");

   tree->addTopLevelItem(ClassMate);

   tree->addTopLevelItem(stranger);

   tree->expandAll();

   connect(tree,SIGNAL(itemDoubleClicked(QTreeWidgetItem*,int)),this,SLOT(item_DblClicked(QTreeWidgetItem*,int)));

   this->setWindowTitle(tr("QQ"));

   this->resize(230,300);

   tree->resize(230,300);

    this->setWindowIcon(QIcon(":/QQ.png"));

}

Dialog::~Dialog()

{

}

void Dialog::item_DblClicked(QTreeWidgetItem *item,int column)

{

    QString str=item->text(column);

    QMessageBox::warning(this,"你点击了ta","你喜欢\'"+str+"\'吗？",QMessageBox::Yes|QMessageBox::No,QMessageBox::Yes);

}