QML TreeView添加节点间虚线

#include "QTreeModel.h" QTreeModel::QTreeModel(QObject *parent) : QAbstractItemModel(parent) { QVector<QVariant> qvr; qvr << false << ""; m_rootItem = new QTreeItem(qvr); QVector<QVariant> qvr1; qvr1 << false << QString::fromLocal8Bit("开始"); QTreeItem *item1 = new QTreeItem(qvr1); QVector<QVariant> qvr11; qvr11 << false << QString::fromLocal8Bit("启动"); QTreeItem *item11 = new QTreeItem(qvr11); QVector<QVariant> qvr12; qvr12 << false << QString::fromLocal8Bit("模式选择"); QTreeItem *item12 = new QTreeItem(qvr12); QVector<QVariant> qvr13; qvr13 << false << QString::fromLocal8Bit("信号选择"); QTreeItem *item13 = new QTreeItem(qvr13); QVector<QVariant> qvr2; qvr2 << false << QString::fromLocal8Bit("监视界面"); QTreeItem *item2 = new QTreeItem(qvr2); QVector<QVariant> qvr21; qvr21 << false << QString::fromLocal8Bit("监视界面1"); QTreeItem *item21 = new QTreeItem(qvr21); QVector<QVariant> qvr22; qvr22 << false << QString::fromLocal8Bit("监视界面2"); QTreeItem *item22 = new QTreeItem(qvr22); QVector<QVariant> qvr3; qvr3 << false << QString::fromLocal8Bit("设置"); QTreeItem *item3 = new QTreeItem(qvr3); QVector<QVariant> qvr31; qvr31 << false << QString::fromLocal8Bit("监控"); QTreeItem *item31 = new QTreeItem(qvr31); QVector<QVariant> qvr32; qvr32 << false << QString::fromLocal8Bit("刺激"); QTreeItem *item32 = new QTreeItem(qvr32); QVector<QVariant> qvr33; qvr33 << false << QString::fromLocal8Bit("声音"); QTreeItem *item33 = new QTreeItem(qvr33); QVector<QVariant> qvr34; qvr34 << false << QString::fromLocal8Bit("标记"); QTreeItem *item34 = new QTreeItem(qvr34); QVector<QVariant> qvr4; qvr4 << false << QString::fromLocal8Bit("报告"); QTreeItem *item4 = new QTreeItem(qvr4); QVector<QVariant> qvr41; qvr41 << false << QString::fromLocal8Bit("监控"); QTreeItem *item41 = new QTreeItem(qvr41); QVector<QVariant> qvr42; qvr42 << false << QString::fromLocal8Bit("刺激"); QTreeItem *item42 = new QTreeItem(qvr42); QVector<QVariant> qvr43; qvr43 << false << QString::fromLocal8Bit("报告1"); QTreeItem *item43 = new QTreeItem(qvr43); QVector<QVariant> qvr5; qvr5 << false << QString::fromLocal8Bit("反演"); QTreeItem *item5 = new QTreeItem(qvr5); QVector<QVariant> qvr51; qvr51 << false << QString::fromLocal8Bit("监控"); QTreeItem *item51 = new QTreeItem(qvr51); QVector<QVariant> qvr52; qvr52 << false << QString::fromLocal8Bit("刺激"); QTreeItem *item52 = new QTreeItem(qvr52); QVector<QVariant> qvr53; qvr53 << false << QString::fromLocal8Bit("反演1"); QTreeItem *item53 = new QTreeItem(qvr53); QVector<QVariant> qvr6; qvr6 << false << QString::fromLocal8Bit("系统设置"); QTreeItem *item6 = new QTreeItem(qvr6); QVector<QVariant> qvr61; qvr61 << false << QString::fromLocal8Bit("设置1"); QTreeItem *item61 = new QTreeItem(qvr61); QVector<QVariant> qvr62; qvr62 << false << QString::fromLocal8Bit("设置2"); QTreeItem *item62 = new QTreeItem(qvr62); QVector<QVariant> qvr63; qvr63 << false << QString::fromLocal8Bit("设置3"); QTreeItem *item63 = new QTreeItem(qvr63); m_rootItem->appendChild(item1); item1->appendChild(item11); item1->appendChild(item12); item1->appendChild(item13); m_rootItem->appendChild(item2); item2->appendChild(item21); item2->appendChild(item22); m_rootItem->appendChild(item3); item3->appendChild(item31); item3->appendChild(item32); item3->appendChild(item33); item3->appendChild(item34); m_rootItem->appendChild(item4); item4->appendChild(item41); item4->appendChild(item42); item4->appendChild(item43); m_rootItem->appendChild(item5); item5->appendChild(item51); item5->appendChild(item52); item5->appendChild(item53); m_rootItem->appendChild(item6); item6->appendChild(item61); item6->appendChild(item62); item6->appendChild(item63); m_roleName.insert(QTreeItem::NodeSelectStateRole,"nodeSelectState"); m_roleName.insert(QTreeItem::NodeNameRole,"nodeName"); } QTreeModel::~QTreeModel() { if(m_rootItem) { delete m_rootItem; } m_rootItem = nullptr; } QVariant QTreeModel::data(const QModelIndex &index, int role) const { if(!index.isValid()) { return QVariant(); } if(role > QTreeItem::NodeNameRole || role < QTreeItem::NodeSelectStateRole) { return QVariant(); } QTreeItem *item = static_cast<QTreeItem*>(index.internalPointer()); if(item) { QVariant qvar = item->data(role - QTreeItem::NodeSelectStateRole); // QString qsNodeInfo = qvar.value<QString>(); return qvar; } else { return QVariant(); } } QModelIndex QTreeModel::index(int row, int column, const QModelIndex &parent) const { if(!hasIndex(row, column, parent)) { return QModelIndex(); } if(!parent.isValid()) { if((row >= 0) && (row < m_rootItem->getChildCount())) { return createIndex(row,column,m_rootItem->getChild(row)); } } else { QTreeItem *parentItem = static_cast<QTreeItem*>(parent.internalPointer()); return createIndex(row, column, parentItem->getChild(row)); } return QModelIndex(); } QModelIndex QTreeModel::parent(const QModelIndex &index) const { if(!index.isValid()) { return QModelIndex(); } QTreeItem *childItem = static_cast<QTreeItem*>(index.internalPointer()); QTreeItem *parentItem = childItem->getParent(); if(parentItem == nullptr || parentItem == m_rootItem) { return QModelIndex(); } return createIndex(parentItem->getRows(), 0, parentItem); } int QTreeModel::rowCount(const QModelIndex &parent) const { QTreeItem *parentItem; if(parent.column() > 0) { return 0; } if(!parent.isValid()) { parentItem = m_rootItem; } else { parentItem = static_cast<QTreeItem*>(parent.internalPointer()); } if (parentItem) return parentItem->getChildCount(); return 0; } int QTreeModel::columnCount(const QModelIndex &parent) const { if(parent.isValid()) { return static_cast<QTreeItem*>(parent.internalPointer())->getColumnCount(); } else { return m_rootItem->getColumnCount(); } } QHash<int, QByteArray> QTreeModel::roleNames() const { return m_roleName; } Qt::ItemFlags QTreeModel::flags(const QModelIndex &index) const { if(!index.isValid()) { return 0; } return Qt::ItemIsEnabled | Qt::ItemIsSelectable; } void QTreeModel::loadData(QList<NODE_INFO> &data) { // for(int i = 0; i < data.size(); ++i) // { // QString nodeName = data[i].nodeName; // } } QAbstractItemModel *QTreeModel::model() { return this; }