selectionio.cpp

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//=============================================================================================================
 
//=============================================================================================================
// INCLUDES
//=============================================================================================================
 
#include "selectionio.h"
 
#include <iostream>
#include <fstream>
#include <sstream>
 
//=============================================================================================================
// QT INCLUDES
//=============================================================================================================
 
#include <QFileInfo>
#include <QTextStream>
#include <QFile>
#include <QDebug>
#include <QScreen>
 
//=============================================================================================================
// USED NAMESPACES
//=============================================================================================================
 
using namespace UTILSLIB;
 
//=============================================================================================================
// DEFINE MEMBER METHODS
//=============================================================================================================
 
SelectionIO::SelectionIO()
{
}
 
//=============================================================================================================
 
bool SelectionIO::readMNESelFile(QString path, QMultiMap<QString, QStringList>& selectionMap)
{
    //Open .sel file
    if (!path.contains(".sel"))
        return false;
 
    //clear the map first
    selectionMap.clear();
 
    QFile file(path);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "Error opening selection file";
        return false;
    }
 
    //Start reading from file
    QTextStream in(&file);
 
    while (!in.atEnd()) {
        QString line = in.readLine();
 
        if (line.contains("%") == false && line.contains(":") == true) //Skip commented areas in file
        {
            QStringList firstSplit = line.split(":");
 
            //Create new key
            QString key = firstSplit.at(0);
 
            QStringList secondSplit = firstSplit.at(1).split("|");
 
            //Delete last element if it is a blank character
            if (secondSplit.at(secondSplit.size() - 1) == "")
                secondSplit.removeLast();
 
            //Add to map
            selectionMap.insert(key, secondSplit);
        }
    }
 
    file.close();
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::readMNESelFile(const std::string& path, std::multimap<std::string, std::vector<std::string>>& selectionMap)
{
    //Open .sel file
    if (path.find(".sel") == std::string::npos)
        return false;
 
    //clear the map first
    selectionMap.clear();
 
    std::ifstream inFile(path);
    if (!inFile.is_open()) {
        qDebug() << "Error opening selection file";
        return false;
    }
 
    std::string line;
 
    while (std::getline(inFile, line)) {
        if (line.find('%') == std::string::npos && line.find(':') != std::string::npos) {
            // Split on ':' → key : channels
            auto colonPos = line.find(':');
            std::string key = line.substr(0, colonPos);
            std::string channelsPart = line.substr(colonPos + 1);
 
            // Split channels on '|'
            std::vector<std::string> channels;
            std::stringstream stream{channelsPart};
            std::string token;
            while (std::getline(stream, token, '|')) {
                channels.push_back(token);
            }
 
            // Remove trailing empty element
            if (!channels.empty() && channels.back().empty()) {
                channels.pop_back();
            }
 
            selectionMap.insert({key, channels});
        }
    }
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::readBrainstormMonFile(QString path, QMultiMap<QString, QStringList>& selectionMap)
{
    //Open .sel file
    if (!path.contains(".mon"))
        return false;
 
    //clear the map first
    selectionMap.clear();
 
    QFile file(path);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
        qDebug() << "Error opening montage file";
        return false;
    }
 
    //Start reading from file
    QTextStream in(&file);
    QString groupName = in.readLine();
    QStringList channels;
 
    while (!in.atEnd()) {
        QString line = in.readLine();
 
        if (line.contains(":") == true) {
            QStringList secondSplit = line.split(":");
            QString key = secondSplit.at(0);
            channels.append(key);
        }
    }
 
    //Add to map
    selectionMap.insert(groupName, channels);
 
    file.close();
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::readBrainstormMonFile(const std::string& path, std::multimap<std::string, std::vector<std::string>>& selectionMap)
{
    //Open file
    if (path.find(".mon") == std::string::npos)
        return false;
 
    //clear the map first
    selectionMap.clear();
 
    std::ifstream inFile(path);
    if (!inFile.is_open()) {
        qDebug() << "Error opening montage file";
        return false;
    }
    std::vector<std::string> channels;
 
    std::string groupName;
    std::getline(inFile, groupName);
 
    std::string line;
    while (std::getline(inFile, line)) {
        if (line.find(':') != std::string::npos) {
            auto colonPos = line.find(':');
            std::string channelName = line.substr(0, colonPos);
            channels.push_back(channelName);
        }
    }
 
    selectionMap.insert({groupName, channels});
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::writeMNESelFile(QString path, const QMultiMap<QString, QStringList>& selectionMap)
{
    //Open .sel file
    if (!path.contains(".sel"))
        return false;
 
    QFile file(path);
    if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
        qDebug() << "Error opening sel file for writing";
        return false;
    }
 
    //Write selections to file
    QTextStream out(&file);
 
    QMultiMap<QString, QStringList>::const_iterator i = selectionMap.constBegin();
    while (i != selectionMap.constEnd()) {
        out << i.key() << ":";
 
        for (int u = 0; u < i.value().size(); u++)
            out << i.value().at(u) << "|";
 
        out << "\n"
            << "\n";
 
        ++i;
    }
 
    file.close();
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::writeMNESelFile(const std::string& path, const std::map<std::string, std::vector<std::string>>& selectionMap)
{
    //Open .sel file
    if (path.find(".sel") == std::string::npos)
        return false;
 
    std::ofstream outFile(path);
    if (!outFile.is_open()) {
        qDebug() << "Error opening sel file for writing";
        return false;
    }
 
    for (auto& mapElement : selectionMap) {
        outFile << mapElement.first << ":";
        for (auto& vectorElement : mapElement.second) {
            outFile << vectorElement << "|";
        }
        outFile << "\n"
                << "\n";
    }
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::writeBrainstormMonFiles(QString path, const QMultiMap<QString, QStringList>& selectionMap)
{
    for (auto i = selectionMap.constBegin(); i != selectionMap.constEnd(); i++) {
        QFileInfo fileInfo(path);
 
        QString newPath = QString("%1/%2.mon").arg(fileInfo.absolutePath()).arg(i.key());
 
        //std::cout<<newPath.toStdString()<<std::endl;
 
        QFile file(newPath);
        if (!file.open(QIODevice::WriteOnly | QIODevice::Text)) {
            qDebug() << "Error opening mon file for writing";
            return false;
        }
 
        //Write selections to file
        QTextStream out(&file);
 
        out << i.key() << "\n";
 
        for (int u = 0; u < i.value().size(); u++)
            out << i.value().at(u) << " : " << i.value().at(u) << "\n";
 
        file.close();
    }
 
    return true;
}
 
//=============================================================================================================
 
bool SelectionIO::writeBrainstormMonFiles(const std::string& path, const std::map<std::string, std::vector<std::string>>& selectionMap)
{
    for (auto& mapElement : selectionMap) {
        std::string newPath{path.substr(0, path.find_last_of("/") + 1) + mapElement.first + ".mon"};
        std::ofstream outFile(newPath);
        if (!outFile.is_open()) {
            qDebug() << "Error opening mon file for writing";
            return false;
        }
 
        outFile << mapElement.first << "\n";
        for (auto& vectorElement : mapElement.second) {
            outFile << vectorElement << " : " << vectorElement << "\n";
        }
    }
 
    return true;
}