向图标式列表框添加item

[c++]代码库

//设置ListWidget
    //contentsWidget = new QListWidget;    //根据ui设置来
    contentsWidget->setViewMode(QListView::IconMode);
    contentsWidget->setIconSize(QSize(96, 84));
    contentsWidget->setMovement(QListView::Static);
    contentsWidget->setMaximumWidth(128);
    contentsWidget->setSpacing(12);
//添加子项，注意声明的是QListWidgetItem变量
    QListWidgetItem *configBtn = new QListWidgetItem(ui->contentsWidget);
    configBtn->setIcon(QIcon(":/images/config.png"));
    configBtn->setText(tr("Configuration"));
    configBtn->setTextAlignment(Qt::AlignHCenter);
    configBtn->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
...
//连接信号
    connect(ui->contentsWidget,
            SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)),
            this,
            SLOT(changePage(QListWidgetItem*, QListWidgetItem*))
            );

//修改当前stackedWidget的代码片段：
void ConfigDialog::changePage(QListWidgetItem *current, QListWidgetItem *previous)
{
    if (!current)
        current = previous;

    pagesWidget->setCurrentIndex(contentsWidget->row(current));
}