StationTreeModel.cpp

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// SPDX-FileCopyrightText: Copyright (c) OpenGeoSys Community (opengeosys.org)
// SPDX-License-Identifier: BSD-3-Clause
 
#include "StationTreeModel.h"
 
#include <QDebug>
 
#include "Base/OGSError.h"
#include "BaseItem.h"
#include "GeoLib/Station.h"

StationTreeModel::StationTreeModel(QObject* parent) : TreeModel(parent)
{
    QList<QVariant> rootData;
    delete _rootItem;
    rootData << "Station Name"
             << "x"
             << "y"
             << "z";
    _rootItem = new ModelTreeItem(rootData, nullptr, nullptr);
}
 
StationTreeModel::~StationTreeModel() = default;

QModelIndex StationTreeModel::index(
    int row, int column, const QModelIndex& parent /*= QModelIndex()*/) const
{
    if (!hasIndex(row, column, parent))
    {
        return QModelIndex();
    }
 
    ModelTreeItem* parentItem;
 
    if (!parent.isValid())
    {
        parentItem = static_cast<ModelTreeItem*>(_rootItem);
    }
    else
    {
        parentItem = static_cast<ModelTreeItem*>(parent.internalPointer());
    }
 
    auto* childItem = static_cast<ModelTreeItem*>(parentItem->child(row));
    if (childItem)
    {
        QModelIndex newIndex = createIndex(row, column, childItem);
        // assign ModelIndex to BaseItem so it can communicate with the model
        BaseItem* item = childItem->getItem();
        if (item != nullptr)
        {
            item->setModelIndex(newIndex);
        }
        return newIndex;
    }
 
    return QModelIndex();
}

GeoLib::Station* StationTreeModel::stationFromIndex(const QModelIndex& index,
                                                    QString& listName) const
{
    if (index.isValid())
    {
        auto* treeItem = static_cast<ModelTreeItem*>(index.internalPointer());
        TreeItem* parentItem = treeItem->parentItem();
        listName = parentItem->data(0).toString();
        return treeItem->getStation();
    }
 
    return nullptr;
}
 
vtkPolyDataAlgorithm* StationTreeModel::vtkSource(const std::string& name) const
{
    std::size_t nLists = _lists.size();
    for (std::size_t i = 0; i < nLists; i++)
    {
        if (name == _lists[i]->data(0).toString().toStdString())
        {
            return dynamic_cast<BaseItem*>(_lists[i]->getItem())->vtkSource();
        }
    }
    return nullptr;
}
 
void StationTreeModel::setNameForItem(const std::string& stn_vec_name,
                                      std::size_t const id,
                                      std::string const& item_name)
{
    auto const stn_list = find_if(
        _lists.begin(),
        _lists.end(),
        [&stn_vec_name](ModelTreeItem* item)
        { return (stn_vec_name == item->data(0).toString().toStdString()); });
 
    if (stn_list == _lists.end() ||
        id >= static_cast<std::size_t>((*stn_list)->childCount()))
    {
        return;
    }
    TreeItem* const item = (*stn_list)->child(id);
    item->setData(0, QString::fromStdString(item_name));
}

void StationTreeModel::addStationList(
    QString listName, const std::vector<GeoLib::Point*>* stations)
{
    beginResetModel();
 
    QList<QVariant> grpName;
    if (listName.compare("") ==
        0)  // if no name is given a default name is assigned
    {
        listName = "List";
        listName.append(QString::number(rowCount() + 1));
    }
    grpName << listName << ""
            << ""
            << "";
    auto* group =
        new ModelTreeItem(grpName, _rootItem, new BaseItem(listName, stations));
    _lists.push_back(group);
    _rootItem->appendChild(group);
    int vectorSize = stations->size();
 
    for (int i = 0; i < vectorSize; i++)
    {
        QList<QVariant> stn;
        stn << QString::fromStdString(
                   static_cast<GeoLib::Station*>((*stations)[i])->getName())
            << QString::number((*(*stations)[i])[0], 'f')
            << QString::number((*(*stations)[i])[1], 'f')
            << QString::number((*(*stations)[i])[2], 'f');
 
        auto* child = new ModelTreeItem(stn, group);
        child->setStation(static_cast<GeoLib::Station*>((*stations)[i]));
        group->appendChild(child);
    }
 
    qDebug() << "List" << listName << "loaded, " << stations->size()
             << "items added.";
 
    endResetModel();
}

void StationTreeModel::removeStationList(QModelIndex index)
{
    if (index.isValid())  //
    {
        auto* item = static_cast<ModelTreeItem*>(getItem(index));
 
        // also delete the lists entry in the list directory of the model
        for (std::size_t i = 0; i < _lists.size(); i++)
        {
            if (item == _lists[i])
            {
                _lists.erase(_lists.begin() + i);
            }
        }
 
        removeRows(0, item->childCount(), index);
        removeRows(item->row(), 1, parent(index));
    }
}

void StationTreeModel::removeStationList(const std::string& name)
{
    for (auto& list : _lists)
    {
        if (name == list->data(0).toString().toStdString())
        {
            removeStationList(createIndex(list->row(), 0, list));
        }
    }
}