Revision control
++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ #include "arrowsmodel.h"
++
++ ArrowsModel::ArrowsModel(QObject *parent)
++ : QAbstractListModel(parent)
++ {
++ connect(this, &QAbstractListModel::rowsInserted, this, &ArrowsModel::rowCountChanged);
++ connect(this, &QAbstractListModel::rowsRemoved, this, &ArrowsModel::rowCountChanged);
++ connect(this, &QAbstractListModel::modelReset, this, &ArrowsModel::rowCountChanged);
++ }
++
++ int ArrowsModel::rowCount(const QModelIndex &) const
++ {
++ return m_arrowsList.size();
++ }
++
++ QHash<int, QByteArray> ArrowsModel::roleNames() const
++ {
++ QHash<int, QByteArray> roles;
++ roles[StartX] = "startX";
++ roles[StartY] = "startY";
++ roles[EndX] = "endX";
++ roles[EndY] = "endY";
++ roles[StartNodeId] = "startNodeId";
++ roles[EndNodeId] = "endNodeId";
++ return roles;
++ }
++
++ QVariant ArrowsModel::data(const QModelIndex &index, int role) const
++ {
++ if (!index.isValid())
++ return QVariant();
++
++ if (index.row() >= m_arrowsList.size())
++ return false;
++
++ const auto &node = (m_arrowsList)[index.row()];
++
++ if (role == StartX)
++ return QVariant::fromValue(node.startX);
++ else if (role == StartY)
++ return QVariant::fromValue(node.startY);
++ else if (role == EndX)
++ return QVariant::fromValue(node.endX);
++ else if (role == EndY)
++ return QVariant::fromValue(node.endY);
++ else if (role == StartNodeId)
++ return QVariant::fromValue(node.startNodeId);
++ else if (role == EndNodeId)
++ return QVariant::fromValue(node.endNodeId);
++
++ return QVariant();
++ }