QT QTreeView 的简单例子

#include <QtGui>

class TreeView :public QTreeView
{
public:
        TreeView();
        void iterateOverItems();
        QList<QStandardItem*> returnTheItems();
private:
         QStandardItemModel *model;
};

TreeView::TreeView() : QTreeView()
{
        model = new QStandardItemModel(4,1);
        QStandardItem *item1 = new QStandardItem("first");
        QStandardItem *item2 = new QStandardItem("second");
        QStandardItem *item3 = new QStandardItem("third");
        QStandardItem *item4 = new QStandardItem("fourth");

        model->setItem(0, 0, item1);
        model->setItem(1, 0, item2);
        model->setItem(2, 0, item3);
        model->setItem(3, 0, item4);

QStandardItem *item5 = new QStandardItem("fifth");
item4->appendRow(item5);
        setModel(model);
}

QList<QStandardItem*> TreeView::returnTheItems()
{
        return model->findItems("*", Qt::MatchWildcard | Qt::MatchRecursive);
}

void TreeView::iterateOverItems()
{
        QList<QStandardItem*> list = returnTheItems();
       
        foreach (QStandardItem* item, list) {
                qDebug() << item->text();
        }
}

int main(int argc, char **argv)
{
        QApplication app(argc, argv);
        TreeView view;
        view.iterateOverItems();
        view.show();
        return app.exec();
}