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318 lines
9.0 KiB
318 lines
9.0 KiB
#include "tools/cabana/dbc/dbcfile.h"
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#include <QDebug>
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#include <QFile>
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#include <QFileInfo>
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#include <QRegularExpression>
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#include <QTextStream>
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#include <QVector>
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#include <limits>
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#include <sstream>
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DBCFile::DBCFile(const QString &dbc_file_name, QObject *parent) : QObject(parent) {
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QFile file(dbc_file_name);
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if (file.open(QIODevice::ReadOnly)) {
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name_ = QFileInfo(dbc_file_name).baseName();
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// Remove auto save file extension
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if (dbc_file_name.endsWith(AUTO_SAVE_EXTENSION)) {
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filename = dbc_file_name.left(dbc_file_name.length() - AUTO_SAVE_EXTENSION.length());
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} else {
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filename = dbc_file_name;
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}
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open(file.readAll());
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} else {
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throw std::runtime_error("Failed to open file.");
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}
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}
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DBCFile::DBCFile(const QString &name, const QString &content, QObject *parent) : QObject(parent), name_(name), filename("") {
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// Open from clipboard
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open(content);
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}
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void DBCFile::open(const QString &content) {
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std::istringstream stream(content.toStdString());
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auto dbc = const_cast<DBC *>(dbc_parse_from_stream(name_.toStdString(), stream));
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msgs.clear();
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for (auto &msg : dbc->msgs) {
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auto &m = msgs[msg.address];
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m.name = msg.name.c_str();
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m.size = msg.size;
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for (auto &s : msg.sigs) {
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m.sigs.push_back({});
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auto &sig = m.sigs.last();
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sig.name = s.name.c_str();
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sig.start_bit = s.start_bit;
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sig.msb = s.msb;
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sig.lsb = s.lsb;
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sig.size = s.size;
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sig.is_signed = s.is_signed;
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sig.factor = s.factor;
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sig.offset = s.offset;
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sig.is_little_endian = s.is_little_endian;
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sig.updatePrecision();
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}
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}
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parseExtraInfo(content);
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delete dbc;
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}
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bool DBCFile::save() {
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assert (!filename.isEmpty());
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if (writeContents(filename)) {
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cleanupAutoSaveFile();
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return true;
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} else {
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return false;
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}
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}
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bool DBCFile::saveAs(const QString &new_filename) {
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filename = new_filename;
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return save();
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}
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bool DBCFile::autoSave() {
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if (!filename.isEmpty()) {
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return writeContents(filename + AUTO_SAVE_EXTENSION);
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} else {
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return false;
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}
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}
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void DBCFile::cleanupAutoSaveFile() {
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if (!filename.isEmpty()) {
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QFile::remove(filename + AUTO_SAVE_EXTENSION);
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}
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}
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bool DBCFile::writeContents(const QString &fn) {
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QFile file(fn);
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if (file.open(QIODevice::WriteOnly)) {
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file.write(generateDBC().toUtf8());
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return true;
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} else {
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return false;
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}
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}
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cabana::Signal *DBCFile::addSignal(const MessageId &id, const cabana::Signal &sig) {
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if (auto m = const_cast<cabana::Msg *>(msg(id.address))) {
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m->sigs.push_back(sig);
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return &m->sigs.last();
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}
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return nullptr;
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}
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cabana::Signal *DBCFile::updateSignal(const MessageId &id, const QString &sig_name, const cabana::Signal &sig) {
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if (auto m = const_cast<cabana::Msg *>(msg(id))) {
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if (auto s = (cabana::Signal *)m->sig(sig_name)) {
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*s = sig;
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return s;
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}
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}
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return nullptr;
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}
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cabana::Signal *DBCFile::getSignal(const MessageId &id, const QString &sig_name) {
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if (auto m = const_cast<cabana::Msg *>(msg(id))) {
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auto it = std::find_if(m->sigs.begin(), m->sigs.end(), [&](auto &s) { return s.name == sig_name; });
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if (it != m->sigs.end()) {
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return &(*it);
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}
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}
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return nullptr;
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}
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void DBCFile::removeSignal(const MessageId &id, const QString &sig_name) {
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if (auto m = const_cast<cabana::Msg *>(msg(id))) {
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auto it = std::find_if(m->sigs.begin(), m->sigs.end(), [&](auto &s) { return s.name == sig_name; });
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if (it != m->sigs.end()) {
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m->sigs.erase(it);
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}
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}
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}
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void DBCFile::updateMsg(const MessageId &id, const QString &name, uint32_t size) {
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auto &m = msgs[id.address];
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m.name = name;
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m.size = size;
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}
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void DBCFile::removeMsg(const MessageId &id) {
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msgs.erase(id.address);
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}
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QString DBCFile::newMsgName(const MessageId &id) {
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return QString("NEW_MSG_") + QString::number(id.address, 16).toUpper();
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}
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QString DBCFile::newSignalName(const MessageId &id) {
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auto m = msg(id);
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assert(m != nullptr);
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QString name;
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for (int i = 1; /**/; ++i) {
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name = QString("NEW_SIGNAL_%1").arg(i);
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if (m->sig(name) == nullptr) break;
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}
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return name;
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}
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std::map<uint32_t, cabana::Msg> DBCFile::getMessages() {
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return msgs;
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}
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const cabana::Msg *DBCFile::msg(const MessageId &id) const {
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return msg(id.address);
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}
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const cabana::Msg *DBCFile::msg(uint32_t address) const {
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auto it = msgs.find(address);
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return it != msgs.end() ? &it->second : nullptr;
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}
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const cabana::Msg* DBCFile::msg(const QString &name) {
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for (auto &[_, msg] : msgs) {
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if (msg.name == name) {
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return &msg;
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}
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}
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return nullptr;
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}
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QStringList DBCFile::signalNames() const {
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// Used for autocompletion
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QStringList ret;
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for (auto const& [_, msg] : msgs) {
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for (auto sig: msg.getSignals()) {
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ret << sig->name;
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}
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}
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ret.sort();
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ret.removeDuplicates();
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return ret;
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}
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int DBCFile::signalCount(const MessageId &id) const {
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if (msgs.count(id.address) == 0) return 0;
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return msgs.at(id.address).sigs.size();
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}
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int DBCFile::signalCount() const {
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int total = 0;
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for (auto const& [_, msg] : msgs) {
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total += msg.sigs.size();
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}
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return total;
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}
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int DBCFile::msgCount() const {
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return msgs.size();
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}
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QString DBCFile::name() const {
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return name_.isEmpty() ? "untitled" : name_;
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}
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bool DBCFile::isEmpty() const {
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return (signalCount() == 0) && name_.isEmpty();
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}
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void DBCFile::parseExtraInfo(const QString &content) {
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static QRegularExpression bo_regexp(R"(^BO_ (\w+) (\w+) *: (\w+) (\w+))");
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static QRegularExpression sg_regexp(R"(^SG_ (\w+) : (\d+)\|(\d+)@(\d+)([\+|\-]) \(([0-9.+\-eE]+),([0-9.+\-eE]+)\) \[([0-9.+\-eE]+)\|([0-9.+\-eE]+)\] \"(.*)\" (.*))");
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static QRegularExpression sgm_regexp(R"(^SG_ (\w+) (\w+) *: (\d+)\|(\d+)@(\d+)([\+|\-]) \(([0-9.+\-eE]+),([0-9.+\-eE]+)\) \[([0-9.+\-eE]+)\|([0-9.+\-eE]+)\] \"(.*)\" (.*))");
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static QRegularExpression sg_comment_regexp(R"(^CM_ SG_ *(\w+) *(\w+) *\"(.*)\";)");
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static QRegularExpression val_regexp(R"(VAL_ (\w+) (\w+) (.*);)");
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auto get_sig = [this](uint32_t address, const QString &name) -> cabana::Signal * {
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auto m = (cabana::Msg *)msg(address);
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return m ? (cabana::Signal *)m->sig(name) : nullptr;
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};
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QTextStream stream((QString *)&content);
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uint32_t address = 0;
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while (!stream.atEnd()) {
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QString line = stream.readLine().trimmed();
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if (line.startsWith("BO_ ")) {
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if (auto match = bo_regexp.match(line); match.hasMatch()) {
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address = match.captured(1).toUInt();
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}
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} else if (line.startsWith("SG_ ")) {
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int offset = 0;
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auto match = sg_regexp.match(line);
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if (!match.hasMatch()) {
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match = sgm_regexp.match(line);
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offset = 1;
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}
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if (match.hasMatch()) {
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if (auto s = get_sig(address, match.captured(1))) {
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s->min = match.captured(8 + offset);
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s->max = match.captured(9 + offset);
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s->unit = match.captured(10 + offset);
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}
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}
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} else if (line.startsWith("VAL_ ")) {
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if (auto match = val_regexp.match(line); match.hasMatch()) {
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if (auto s = get_sig(match.captured(1).toUInt(), match.captured(2))) {
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QStringList desc_list = match.captured(3).trimmed().split('"');
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for (int i = 0; i < desc_list.size(); i += 2) {
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auto val = desc_list[i].trimmed();
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if (!val.isEmpty() && (i + 1) < desc_list.size()) {
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auto desc = desc_list[i+1].trimmed();
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s->val_desc.push_back({val, desc});
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}
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}
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}
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}
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} else if (line.startsWith("CM_ SG_ ")) {
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if (auto match = sg_comment_regexp.match(line); match.hasMatch()) {
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if (auto s = get_sig(match.captured(1).toUInt(), match.captured(2))) {
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s->comment = match.captured(3).trimmed();
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}
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}
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}
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}
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}
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QString DBCFile::generateDBC() {
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QString dbc_string, signal_comment, val_desc;
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for (auto &[address, m] : msgs) {
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dbc_string += QString("BO_ %1 %2: %3 XXX\n").arg(address).arg(m.name).arg(m.size);
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for (auto sig : m.getSignals()) {
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dbc_string += QString(" SG_ %1 : %2|%3@%4%5 (%6,%7) [%8|%9] \"%10\" XXX\n")
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.arg(sig->name)
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.arg(sig->start_bit)
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.arg(sig->size)
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.arg(sig->is_little_endian ? '1' : '0')
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.arg(sig->is_signed ? '-' : '+')
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.arg(sig->factor, 0, 'g', std::numeric_limits<double>::digits10)
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.arg(sig->offset, 0, 'g', std::numeric_limits<double>::digits10)
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.arg(sig->min)
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.arg(sig->max)
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.arg(sig->unit);
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if (!sig->comment.isEmpty()) {
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signal_comment += QString("CM_ SG_ %1 %2 \"%3\";\n").arg(address).arg(sig->name).arg(sig->comment);
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}
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if (!sig->val_desc.isEmpty()) {
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QStringList text;
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for (auto &[val, desc] : sig->val_desc) {
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text << QString("%1 \"%2\"").arg(val, desc);
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}
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val_desc += QString("VAL_ %1 %2 %3;\n").arg(address).arg(sig->name).arg(text.join(" "));
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}
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}
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dbc_string += "\n";
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}
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return dbc_string + signal_comment + val_desc;
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}
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