QTreeWidget类是一个方便的类,它提供了一个标准tree小部件与一个典型的基于项目所使用的接口类似QListView

#include "form.h" #include "ui_form.h" #include <QTreeWidgetItem> #include <QDebug> const QString styles = "QTreeView\ {\ background-color: #5B677A;\ font-size:17px;\ color: white;\ }\ QTreeView::item:hover\ {\ background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #e7effd, stop: 1 #cbdaf1);\ border: 1px solid #bfcde4;\ }\ QTreeView::item:hover\ {\ background: rgb(69, 187, 217);\ }\ QTreeView::item:selected:active\ {\ background: rgb(255, 62, 150);\ }\ QTreeView::item:selected:!active\ {\ background: rgb(63, 147, 168);\ }\ QTreeView::branch\ {\ background:#5B677A;\ }\ QTreeView::branch:has-children:!has-siblings:closed,QTreeView::branch:closed:has-children:has-siblings\ {\ border-image: none;\ background:#5B677A;\ image: url(image/Folder-1.png);\ }\ QTreeView::branch:open:has-children:!has-siblings,QTreeView::branch:open:has-children:has-siblings\ {\ border-image: none;\ background:#5B677A;\ image: url(image/Open-Folder.png);\ }"; Form::Form(QWidget *parent) : QWidget(parent), ui(new Ui::Form) { ui->setupUi(this); //隐藏表头 ui->treeWidget->setHeaderHidden(true); //打开右键菜单属性 ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu); //添加顶层节点 QTreeWidgetItem *topItem1 = new QTreeWidgetItem(ui->treeWidget); topItem1->setText(0,u8"角色"); topItem1->setCheckState(0, Qt::Checked); ui->treeWidget->addTopLevelItem(topItem1); //右键菜单 m_menu = new QMenu(ui->treeWidget); m_menu->addAction(u8"添加"); m_menu->addAction(u8"删除"); QTreeWidgetItem *item11 = new QTreeWidgetItem(topItem1); item11->setText(0,u8"野蛮人"); item11->setCheckState(0, Qt::Checked); //设置数据,可以带多种数据 item11->setData(0,Qt::UserRole,100/*人员数量*/); item11->setData(0,Qt::UserRole+1,u8"肖恩"/*负责人名字*/); //获得数据 item11->data(0,Qt::UserRole).toInt(); item11->data(0,Qt::UserRole+1).toString(); QTreeWidgetItem *item12 = new QTreeWidgetItem(topItem1); item12->setText(0,u8"猎魔人"); QTreeWidgetItem *item13 = new QTreeWidgetItem(topItem1); item13->setText(0,u8"死灵法师"); QTreeWidgetItem *item14 = new QTreeWidgetItem(topItem1); item14->setText(0,u8"圣骑士"); QTreeWidgetItem *item15 = new QTreeWidgetItem(topItem1); item15->setText(0,u8"女巫"); QTreeWidgetItem *item16 = new QTreeWidgetItem(topItem1); item16->setText(0,u8"武行者"); QTreeWidgetItem *topItem2 = new QTreeWidgetItem(ui->treeWidget); topItem2->setText(0,u8"技能"); topItem2->setCheckState(0,Qt::Checked); ui->treeWidget->addTopLevelItem(topItem2); QTreeWidgetItem *item21 = new QTreeWidgetItem(topItem2); item21->setText(0,u8"旋风斩"); item21->setCheckState(0,Qt::Checked); QTreeWidgetItem *item22 = new QTreeWidgetItem(topItem2); item22->setText(0,u8"狂暴冲锋"); item22->setCheckState(0,Qt::Checked); QTreeWidgetItem *item23 = new QTreeWidgetItem(topItem2); item23->setText(0,u8"不灭之怒"); item23->setCheckState(0,Qt::Checked); QTreeWidgetItem *item24 = new QTreeWidgetItem(topItem2); item24->setText(0,u8"疾奔"); item24->setCheckState(0,Qt::Checked); QTreeWidgetItem *item25 = new QTreeWidgetItem(topItem2); item25->setText(0,u8"狂乱"); item25->setCheckState(0,Qt::Checked); QTreeWidgetItem *item26 = new QTreeWidgetItem(topItem2); item26->setText(0,u8"先祖之锤"); item26->setCheckState(0,Qt::Checked); QTreeWidgetItem* childItem111 = new QTreeWidgetItem(item11); childItem111->setCheckState(0, Qt::Unchecked); childItem111->setText(0, u8"装备"); QTreeWidgetItem* childItem1111 = new QTreeWidgetItem(childItem111); childItem1111->setText(0, u8"头盔"); QTreeWidgetItem* childItem1112 = new QTreeWidgetItem(childItem111); childItem1112->setText(0, u8"胸甲"); QTreeWidgetItem* childItem1113 = new QTreeWidgetItem(childItem111); childItem1113->setText(0, u8"肩甲"); QTreeWidgetItem* childItem1114 = new QTreeWidgetItem(childItem111); childItem1114->setText(0, u8"裤子"); QTreeWidgetItem* childItem1115 = new QTreeWidgetItem(childItem111); childItem1115->setText(0, u8"主手"); QTreeWidgetItem* childItem1116 = new QTreeWidgetItem(childItem111); childItem1116->setText(0, u8"副手"); //设置展开 ui->treeWidget->expandAll(); ui->treeWidget->setStyleSheet(styles); //QTreeWidget connect(ui->treeWidget,&QTreeWidget::itemClicked,this, &Form::slotClicked); connect(ui->treeWidget,&QTreeWidget::customContextMenuRequested, this,&Form::slotMenuPopup); } Form::~Form() { delete ui; } void Form::slotClicked(QTreeWidgetItem *item, int column) { //简单响应一下选中状态槽函数 int itemCount = item->childCount(); for (int i=0; i<item->childCount(); i++) { QTreeWidgetItem *pChildItem = item->child(i); pChildItem->setCheckState(0,item->checkState(0)); } } void Form::slotMenuPopup(const QPoint &pos) { m_menu->exec(ui->treeWidget->mapToGlobal(pos)); }