c++使用qtreewidget添加控件 -QT开发中文网

可以使用QTreeWidgetItem类和QTreeWidget类来添加控件。

创建QTreeWidget：

QTreeWidget *treeWidget = new QTreeWidget();

添加根节点：

QTreeWidgetItem *rootItem = new QTreeWidgetItem(treeWidget);
rootItem->setText(0, "Root");

添加子节点：

QTreeWidgetItem *childItem = new QTreeWidgetItem(rootItem);
childItem->setText(0, "Child");

在子节点上添加控件：

QWidget *widget = new QWidget();
QHBoxLayout *layout = new QHBoxLayout(widget);
QPushButton *button = new QPushButton("Button");
layout->addWidget(button);
layout->setAlignment(Qt::AlignCenter);
widget->setLayout(layout);
treeWidget->setItemWidget(childItem, 0, widget);

显示QTreeWidget：

treeWidget->show();

完整示例代码：

#include <QApplication>
#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QWidget>
#include <QPushButton>
#include <QHBoxLayout>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);

    QTreeWidget *treeWidget = new QTreeWidget();
    QTreeWidgetItem *rootItem = new QTreeWidgetItem(treeWidget);
    rootItem->setText(0, "Root");
    QTreeWidgetItem *childItem = new QTreeWidgetItem(rootItem);
    childItem->setText(0, "Child");
    QWidget *widget = new QWidget();
    QHBoxLayout *layout = new QHBoxLayout(widget);
    QPushButton *button = new QPushButton("Button");
    layout->addWidget(button);
    layout->setAlignment(Qt::AlignCenter);
    widget->setLayout(layout);
    treeWidget->setItemWidget(childItem, 0, widget);
    treeWidget->show();

    return a.exec();
}