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312165150f0ab22ad2d41c627e2022d12370abc2
giesCANne/dbc/dbchandler.cpp
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#include "dbchandler.h"
#include <QFile>
#include <QRegularExpression>
#include <QDebug>
#include <QMessageBox>
#include <QFileDialog>
#include <QApplication>
#include <QPalette>
#include <QSettings>
#include <QJsonDocument>
#include <QJsonArray>
#include <QJsonObject>
#include "utility.h"
#include "connections/canconmanager.h"
#include <algorithm>
DBCHandler* DBCHandler::instance = nullptr;
static bool parseValueDescriptions(QString tokenString, QList<DBC_VAL_ENUM_ENTRY> &values)
{
QRegularExpression regex;
QRegularExpressionMatch match;
DBC_VAL_ENUM_ENTRY val;
values.clear();
tokenString = tokenString.trimmed();
while (tokenString.length() > 2)
{
regex.setPattern("^([+-]?\\d+) \\\"(.*?)\\\"(.*)");
match = regex.match(tokenString);
if (!match.hasMatch()) return false;
val.value = match.captured(1).toInt();
val.descript = match.captured(2);
values.append(val);
tokenString = match.captured(3).trimmed();
}
return values.count() > 0;
}
DBC_SIGNAL* DBCSignalHandler::findSignalByIdx(int idx)
{
if (sigs.count() == 0) return nullptr;
if (idx < 0) return nullptr;
if (idx >= sigs.count()) return nullptr;
return &sigs[idx];
}
DBC_SIGNAL* DBCSignalHandler::findSignalByName(QString name)
{
if (sigs.count() == 0) return nullptr;
for (int i = 0; i < sigs.count(); i++)
{
if (sigs[i].name.compare(name, Qt::CaseInsensitive) == 0)
{
return &sigs[i];
}
}
return nullptr;
}
bool DBCSignalHandler::addSignal(DBC_SIGNAL &sig)
{
sigs.append(sig);
return true;
}
bool DBCSignalHandler::removeSignal(DBC_SIGNAL *sig)
{
qDebug() << "Total # of signals: " << getCount();
for (int i = 0; i < getCount(); i++)
{
if (sigs[i].name == sig->name)
{
sigs.removeAt(i);
qDebug() << "Removed signal at idx " << i;
}
}
return true;
}
bool DBCSignalHandler::removeSignal(int idx)
{
if (sigs.count() == 0) return false;
if (idx < 0) return false;
if (idx >= sigs.count()) return false;
sigs.removeAt(idx);
return true;
}
bool DBCSignalHandler::removeSignal(QString name)
{
bool foundSome = false;
if (sigs.count() == 0) return false;
for (int i = sigs.count() - 1; i >= 0; i--)
{
if (sigs[i].name.compare(name, Qt::CaseInsensitive) == 0)
{
sigs.removeAt(i);
foundSome = true;
}
}
return foundSome;
}
void DBCSignalHandler::removeAllSignals()
{
sigs.clear();
}
int DBCSignalHandler::getCount()
{
return sigs.count();
}
bool signal_cmp(DBC_SIGNAL a, DBC_SIGNAL b)
{
return a.startBit < b.startBit;
}
void DBCSignalHandler::sort()
{
std::sort(sigs.begin(), sigs.end(), signal_cmp);
}
DBC_MESSAGE* DBCMessageHandler::findMsgByID(uint32_t id)
{
if (messages.count() == 0) return nullptr;
DBC_MESSAGE *bestMatch = nullptr;
for (int i = 0; i < messages.count(); i++)
{
if ( messages[i].ID == id )
{
return &messages[i];
}
if (matchingCriteria == J1939)
{
// include data page and extended data page in the pgn
uint32_t pgn = (id & 0x3FFFF00) >> 8;
if ( (pgn & 0xFF00) <= 0xEF00 )
{
// PDU1 format
pgn &= 0x3FF00;
if ((messages[i].ID & 0x3FF0000) == (pgn << 8))
{
bestMatch = &messages[i];
}
}
else
{
// PDU2 format
if ((messages[i].ID & 0x3FFFF00) == (pgn << 8))
{
bestMatch = &messages[i];
}
}
}
else if (matchingCriteria == GMLAN)
{
// Match the bits 14-26 (Arbitration Id) of GMLAN 29bit header
uint32_t arbId = id &0x3FFE000;
if ( (arbId != 0) && (messages[i].ID & 0x3FFE000) == arbId )
bestMatch = &messages[i];
}
}
return bestMatch;
}
DBC_MESSAGE* DBCMessageHandler::findMsgByIdx(int idx)
{
if (messages.count() == 0) return nullptr;
if (idx < 0) return nullptr;
if (idx >= messages.count()) return nullptr;
return &messages[idx];
}
DBC_MESSAGE* DBCMessageHandler::findMsgByName(QString name)
{
if (messages.count() == 0) return nullptr;
for (int i = 0; i < messages.count(); i++)
{
if (messages[i].name.compare(name, Qt::CaseInsensitive) == 0)
{
return &messages[i];
}
}
return nullptr;
}
//allow for finding a message just by part of the name
DBC_MESSAGE* DBCMessageHandler::findMsgByPartialName(QString name)
{
if (messages.count() == 0) return nullptr;
for (int i = 0; i < messages.count(); i++)
{
if (messages[i].name.contains(name, Qt::CaseInsensitive))
{
return &messages[i];
}
}
return nullptr;
}
QList<DBC_MESSAGE*> DBCMessageHandler::findMsgsByNode(DBC_NODE* node)
{
QList<DBC_MESSAGE*> messagesForNode;
if (messages.count() == 0)
return messagesForNode;
for (int i = 0; i < messages.count(); i++)
{
if (messages[i].sender == node)
{
messagesForNode.append(&messages[i]);
}
}
return messagesForNode;
}
bool DBCMessageHandler::addMessage(DBC_MESSAGE &msg)
{
messages.append(msg);
return true;
}
bool DBCMessageHandler::removeMessage(DBC_MESSAGE *msg)
{
qDebug() << "Total # of messages: " << getCount();
for (int i = 0; i < getCount(); i++)
{
if (messages[i].name == msg->name)
{
messages.removeAt(i);
qDebug() << "Removed message at idx " << i;
break;
}
}
return true;
}
bool DBCMessageHandler::removeMessageByIndex(int idx)
{
if (messages.count() == 0) return false;
if (idx < 0) return false;
if (idx >= messages.count()) return false;
messages.removeAt(idx);
return true;
}
bool DBCMessageHandler::removeMessage(uint32_t ID)
{
bool foundSome = false;
if (messages.count() == 0) return false;
for (int i = messages.count() - 1; i >= 0; i--)
{
if (messages[i].ID == ID)
{
messages.removeAt(i);
foundSome = true;
}
}
return foundSome;
}
bool DBCMessageHandler::removeMessage(QString name)
{
bool foundSome = false;
if (messages.count() == 0) return false;
for (int i = messages.count() - 1; i >= 0; i--)
{
if (messages[i].name.compare(name, Qt::CaseInsensitive) == 0)
{
messages.removeAt(i);
foundSome = true;
}
}
return foundSome;
}
void DBCMessageHandler::removeAllMessages()
{
messages.clear();
}
int DBCMessageHandler::getCount()
{
return messages.count();
}
bool msg_cmp(DBC_MESSAGE a, DBC_MESSAGE b)
{
return a.ID < b.ID;
}
void DBCMessageHandler::sort()
{
std::sort(messages.begin(), messages.end(), msg_cmp);
for (int i = 0; i < messages.count(); i++)
{
messages[i].sigHandler->sort();
}
}
bool DBCMessageHandler::filterLabeling()
{
return filterLabelingEnabled;
}
void DBCMessageHandler::setFilterLabeling(bool filterLabeling)
{
filterLabelingEnabled = filterLabeling;
}
MatchingCriteria_t DBCMessageHandler::getMatchingCriteria()
{
return matchingCriteria;
}
void DBCMessageHandler::setMatchingCriteria(MatchingCriteria_t _matchingCriteria)
{
matchingCriteria = _matchingCriteria;
}
DBCFile::DBCFile()
{
messageHandler = new DBCMessageHandler;
messageHandler->setMatchingCriteria(EXACT);
messageHandler->setFilterLabeling(false);
isDirty = false;
fileName = "<Unsaved File>";
}
DBCFile::DBCFile(const DBCFile& cpy) : QObject()
{
messageHandler = new DBCMessageHandler;
for (int i = 0 ; i < cpy.messageHandler->getCount() ; i++)
messageHandler->addMessage(*cpy.messageHandler->findMsgByIdx(i));
messageHandler->setMatchingCriteria(cpy.messageHandler->getMatchingCriteria());
messageHandler->setFilterLabeling(cpy.messageHandler->filterLabeling());
fileName = cpy.fileName;
filePath = cpy.filePath;
assocBuses = cpy.assocBuses;
dbc_nodes.clear();
dbc_nodes.append(cpy.dbc_nodes);
dbc_value_tables.clear();
dbc_value_tables.append(cpy.dbc_value_tables);
dbc_attributes.clear();
dbc_attributes.append(cpy.dbc_attributes);
isDirty = cpy.isDirty;
}
DBCFile& DBCFile::operator=(const DBCFile& cpy)
{
if (this != &cpy) // protect against invalid self-assignment
{
messageHandler = cpy.messageHandler;
fileName = cpy.fileName;
filePath = cpy.filePath;
assocBuses = cpy.assocBuses;
dbc_nodes.clear();
dbc_nodes.append(cpy.dbc_nodes);
dbc_value_tables.clear();
dbc_value_tables.append(cpy.dbc_value_tables);
dbc_attributes.clear();
dbc_attributes.append(cpy.dbc_attributes);
}
return *this;
}
void DBCFile::sort()
{
std::sort(dbc_nodes.begin(), dbc_nodes.end()); //sort node names
messageHandler->sort(); //sort messages, each of which sorts its signals too
}
DBC_NODE* DBCFile::findNodeByIdx(int idx)
{
if (idx < 0) return nullptr;
if (idx >= dbc_nodes.count()) return nullptr;
return &dbc_nodes[idx];
}
DBC_NODE* DBCFile::findNodeByName(QString name)
{
if (dbc_nodes.length() == 0) return nullptr;
for (int i = 0; i < dbc_nodes.length(); i++)
{
if (name.compare(dbc_nodes[i].name, Qt::CaseInsensitive) == 0)
{
return &dbc_nodes[i];
}
}
return nullptr;
}
DBC_NODE* DBCFile::findNodeByNameAndComment(QString fullname)
{
QString nameAndComment;
if (dbc_nodes.length() == 0) return nullptr;
for (int i = 0; i < dbc_nodes.length(); i++)
{
if(dbc_nodes[i].comment.isEmpty())
nameAndComment = dbc_nodes[i].name;
else
nameAndComment = dbc_nodes[i].name + " - " + dbc_nodes[i].comment;
if (fullname.compare(nameAndComment, Qt::CaseInsensitive) == 0)
{
return &dbc_nodes[i];
}
}
return nullptr;
}
DBC_VAL_TABLE* DBCFile::findValueTableByName(QString name)
{
if (dbc_value_tables.length() == 0) return nullptr;
for (int i = 0; i < dbc_value_tables.length(); i++)
{
if (name.compare(dbc_value_tables[i].name, Qt::CaseInsensitive) == 0)
{
return &dbc_value_tables[i];
}
}
return nullptr;
}
QString DBCFile::getFullFilename()
{
return filePath + fileName;
}
QString DBCFile::getFilename()
{
return fileName;
}
QString DBCFile::getFilenameNoExt()
{
return fileName.split(".dbc")[0];
}
QString DBCFile::getPath()
{
return filePath;
}
int DBCFile::getAssocBus()
{
return assocBuses;
}
void DBCFile::setAssocBus(int bus)
{
if (bus < -1) return;
// To allow setting bus numbers even before connection is configured, do not enforce "valid" bus numbers
//int numBuses = CANConManager::getInstance()->getNumBuses();
//if (bus >= numBuses) return;
assocBuses = bus;
}
DBC_ATTRIBUTE *DBCFile::findAttributeByName(QString name, DBC_ATTRIBUTE_TYPE type)
{
if (dbc_attributes.length() == 0) return nullptr;
for (int i = 0; i < dbc_attributes.length(); i++)
{
if (dbc_attributes[i].name.compare(name, Qt::CaseInsensitive) == 0 && ((type == dbc_attributes[i].attrType) || (type == ATTR_TYPE_ANY) ) )
{
return &dbc_attributes[i];
}
}
return nullptr;
}
DBC_ATTRIBUTE *DBCFile::findAttributeByIdx(int idx)
{
if (idx < 0) return nullptr;
if (idx >= dbc_attributes.count()) return nullptr;
return &dbc_attributes[idx];
}
void DBCFile::findAttributesByType(DBC_ATTRIBUTE_TYPE typ, QList<DBC_ATTRIBUTE> *list)
{
if (!list) return;
list->clear();
foreach (DBC_ATTRIBUTE attr, dbc_attributes)
{
if (attr.attrType == typ) list->append(attr);
}
}
void DBCFile::setDirtyFlag()
{
isDirty = true;
}
//BE CAREFUL HERE. Do not clear the dirty flag unless you're absolutely sure nothing has changed.
//Currently the signal editor clears this flag if the entire undo buffer is emptied but still
//it's possible that signals or messages were deleted or added so this is potentially not that safe
//It would be better if every node, message, and signal had a dirty flag. Then the DBCFile getDirtyFlag
//function could traverse the tree and see if anything is dirty.
void DBCFile::clearDirtyFlag()
{
isDirty = false;
}
bool DBCFile::getDirtyFlag()
{
return isDirty;
}
DBC_MESSAGE* DBCFile::parseMessageLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
DBC_MESSAGE *msgPtr;
qDebug() << "Found a BO line";
regex.setPattern("^BO\\_ (\\w+) ([-\\w]+) *: (\\w+) ([-\\w]+)");
match = regex.match(line);
//captured 1 = the ID in decimal
//captured 2 = The message name
//captured 3 = the message length
//captured 4 = the NODE responsible for this message
if (match.hasMatch())
{
DBC_MESSAGE msg;
uint32_t ID = match.captured(1).toULong(); //the ID is always stored in decimal format
msg.ID = ID & 0x1FFFFFFFul;
msg.extendedID = (ID & 0x80000000ul) ? true : false;
msg.name = match.captured(2);
msg.len = match.captured(3).toUInt();
msg.sender = findNodeByName(match.captured(4));
if (!msg.sender) msg.sender = findNodeByIdx(0);
messageHandler->addMessage(msg);
msgPtr = messageHandler->findMsgByID(msg.ID);
}
else msgPtr = nullptr;
return msgPtr;
}
DBC_SIGNAL* DBCFile::parseSignalLine(QString line, DBC_MESSAGE *msg)
{
QRegularExpression regex;
QRegularExpressionMatch match;
int offset = 0;
bool isMessageMultiplexor = false;
//bool isMultiplexed = false;
DBC_SIGNAL sig;
qDebug() << "Found a SG line";
regex.setPattern("^SG\\_ *([-\\w]+) +M *: *(\\d+)\\|(\\d+)@(\\d+)([\\+|\\-]) \\(([0-9.+\\-eE]+),([0-9.+\\-eE]+)\\) \\[([0-9.+\\-eE]+)\\|([0-9.+\\-eE]+)\\] \\\"(.*)\\\" (.*)");
match = regex.match(line);
if (match.hasMatch())
{
qDebug() << "Multiplexor signal";
isMessageMultiplexor = true;
sig.isMultiplexor = true;
}
else
{
regex.setPattern("^SG\\_ *([-\\w]+) +m(\\d+) *: *(\\d+)\\|(\\d+)@(\\d+)([\\+|\\-]) \\(([0-9.+\\-eE]+),([0-9.+\\-eE]+)\\) \\[([0-9.+\\-eE]+)\\|([0-9.+\\-eE]+)\\] \\\"(.*)\\\" (.*)");
match = regex.match(line);
if (match.hasMatch())
{
qDebug() << "Multiplexed signal";
sig.addMultiplexRange(match.captured(2).toInt(), match.captured(2).toInt());
offset = 1;
}
else
{
regex.setPattern("^SG\\_ *([-\\w]+) +m(\\d+)M *: *(\\d+)\\|(\\d+)@(\\d+)([\\+|\\-]) \\(([0-9.+\\-eE]+),([0-9.+\\-eE]+)\\) \\[([0-9.+\\-eE]+)\\|([0-9.+\\-eE]+)\\] \\\"(.*)\\\" (.*)");
match = regex.match(line);
if (match.hasMatch())
{
qDebug() << "Extended Multiplexor Signal";
sig.isMultiplexor = true; //we don't set the local isMessageMultiplexor variable because this isn't the top level multiplexor
sig.addMultiplexRange(match.captured(2).toInt(), match.captured(2).toInt());
offset = 1;
}
else
{
qDebug() << "standard signal";
regex.setPattern("^SG\\_ *([-\\w]+) *: *(\\d+)\\|(\\d+)@(\\d+)([\\+|\\-]) \\(([0-9.+\\-eE]+),([0-9.+\\-eE]+)\\) \\[([0-9.+\\-eE]+)\\|([0-9.+\\-eE]+)\\] \\\"(.*)\\\" (.*)");
match = regex.match(line);
sig.isMultiplexed = false;
sig.isMultiplexor = false;
}
}
}
//captured 1 is the signal name
//captured 2 would be multiplex value if this is a multiplex signal. Then offset the rest of these by 1
//captured 2 is the starting bit
//captured 3 is the length in bits
//captured 4 is the byte order / value type
//captured 5 specifies signed/unsigned for ints
//captured 6 is the scaling factor
//captured 7 is the offset
//captured 8 is the minimum value
//captured 9 is the maximum value
//captured 10 is the unit
//captured 11 is the receiving node
if (match.hasMatch())
{
sig.name = match.captured(1);
sig.startBit = match.captured(2 + offset).toInt();
sig.signalSize = match.captured(3 + offset).toInt();
int val = match.captured(4 + offset).toInt();
if (val < 2)
{
if (match.captured(5 + offset) == "+") sig.valType = UNSIGNED_INT;
else sig.valType = SIGNED_INT;
}
switch (val)
{
case 0: //big endian mode
sig.intelByteOrder = false;
break;
case 1: //little endian mode
sig.intelByteOrder = true;
break;
case 2:
sig.valType = SP_FLOAT;
break;
case 3:
sig.valType = DP_FLOAT;
break;
case 4:
sig.valType = STRING;
break;
case 5: //single point float in little endian
sig.valType = SP_FLOAT;
sig.intelByteOrder = true;
break;
case 6: //double point float in little endian
sig.valType = DP_FLOAT;
sig.intelByteOrder = true;
break;
}
sig.factor = match.captured(6 + offset).toDouble();
sig.bias = match.captured(7 + offset).toDouble();
sig.min = match.captured(8 + offset).toDouble();
sig.max = match.captured(9 + offset).toDouble();
sig.unitName = match.captured(10 + offset);
if (match.captured(11 + offset).contains(','))
{
QString tmp = match.captured(11 + offset).split(',')[0];
sig.receiver = findNodeByName(tmp);
}
else sig.receiver = findNodeByName(match.captured(11 + offset));
if (!sig.receiver) sig.receiver = findNodeByIdx(0); //apply default if there was no match
sig.parentMessage = msg;
if (msg)
{
msg->sigHandler->addSignal(sig);
if (isMessageMultiplexor) msg->multiplexorSignal = msg->sigHandler->findSignalByName(sig.name);
return msg->sigHandler->findSignalByName(sig.name);
}
else return nullptr;
}
return nullptr;
}
//SG_MUL_VAL_ 2024 S1_PID_0D_VehicleSpeed S1 13-13;
bool DBCFile::parseSignalMultiplexValueLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
qDebug() << "Found a multiplex definition line";
regex.setPattern("^SG\\_MUL\\_VAL\\_ (\\d+) ([-\\w]+) ([-\\w]+) ((?:\\d+\\-\\d+[\\s]*[\\,]?[\\s]*)*)");
match = regex.match(line);
//captured 1 is message ID
//Captured 2 is signal name
//Captured 3 is parent multiplexor
//captured 4 is the lower bound
//captured 5 is the upper bound
if (match.hasMatch())
{
DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFUL);
if (msg != nullptr)
{
DBC_SIGNAL *thisSignal = msg->sigHandler->findSignalByName(match.captured(2));
if (thisSignal != nullptr)
{
DBC_SIGNAL *parentSignal = msg->sigHandler->findSignalByName(match.captured(3));
if (parentSignal != nullptr)
{
const QStringList ranges = match.captured(4).split(QChar(','), Qt::SkipEmptyParts);
for (const QString &range : ranges) {
//now need to add "thisSignal" to the children multiplexed signals of "parentSignal"
const QStringList rangeSides = range.trimmed().split(QChar('-'));
if (rangeSides.count() != 2) {
qDebug() << QString("Malformed range definition: '%2' found in the multiplexed signal: %1")
.arg(match.captured(1).arg(range.trimmed()));
return false;
}
int rangeMin = rangeSides.at(0).toInt();
int rangeMax = rangeSides.at(1).toInt();
thisSignal->multiplexParent = parentSignal;
thisSignal->addMultiplexRange(rangeMin, rangeMax);
}
parentSignal->multiplexedChildren.append(thisSignal);
return true;
}
}
}
}
return false;
}
bool DBCFile::parseSignalValueTypeLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
qDebug() << "Found a signal valtype line";
regex.setPattern("^SIG\\_VALTYPE\\_ *(\\d+) *([-\\w]+) *: *(\\d+);");
match = regex.match(line);
// captured 1 is the message id
// captured 2 is the signal name
// captured 3 is the valtype
if (!match.hasMatch()) { return false; }
uint32_t id = match.captured(1).toULong() & 0x1FFFFFFFUL;
DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFUL);
if (msg == nullptr) { return false; }
DBC_SIGNAL *thisSignal = msg->sigHandler->findSignalByName(match.captured(2));
if (thisSignal == nullptr) { return false; }
int valType = match.captured(3).toInt();
switch (valType) {
case 1: {
thisSignal->valType = SP_FLOAT;
break;
}
case 2: {
thisSignal->valType = DP_FLOAT;
break;
}
default: {
return false;
}
}
return true;
}
bool DBCFile::parseValueTableLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
regex.setPattern("^VAL\\_TABLE\\_ ([-\\w]+) (.*);");
match = regex.match(line);
//captured 1 is the table name
//captured 2 is a series of values in the form (number "text")
if (match.hasMatch())
{
DBC_VAL_TABLE table;
table.name = match.captured(1);
if (!parseValueDescriptions(match.captured(2), table.valList)) return false;
DBC_VAL_TABLE *existingTable = findValueTableByName(table.name);
if (existingTable) existingTable->valList = table.valList;
else dbc_value_tables.append(table);
return true;
}
return false;
}
bool DBCFile::parseValueLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
qDebug() << "Found a value definition line";
regex.setPattern("^VAL\\_ (\\w+) ([-\\w]+) (.*);");
match = regex.match(line);
//captured 1 is the ID to match against
//captured 2 is the signal name to match against
//captured 3 is a series of values in the form (number "text") that is, all sep'd by spaces
if (match.hasMatch())
{
//qDebug() << "Data was: " << match.captured(3);
DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFul);
if (msg != nullptr)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByName(match.captured(2));
if (sig != nullptr)
{
QString tokenString = match.captured(3);
QList<DBC_VAL_ENUM_ENTRY> values;
DBC_VAL_TABLE *valueTable = findValueTableByName(tokenString.trimmed());
if (valueTable)
{
sig->valList = valueTable->valList;
return true;
}
if (parseValueDescriptions(tokenString, values))
{
sig->valList.append(values);
return true;
}
}
}
}
return false;
}
bool DBCFile::parseAttributeLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
regex.setPattern("^BA\\_ \\\"*([-\\w]+)\\\"* BO\\_ (\\d+) \\\"*([#\\w]+)\\\"*");
match = regex.match(line);
//captured 1 is the attribute name
//captured 2 is the message ID number (frame ID)
//captured 3 is the attribute value
if (match.hasMatch())
{
qDebug() << "Found an attribute setting line for a message";
DBC_ATTRIBUTE *foundAttr = findAttributeByName(match.captured(1));
if (foundAttr)
{
qDebug() << "That message attribute does exist";
DBC_MESSAGE *foundMsg = messageHandler->findMsgByID(match.captured(2).toULong() & 0x1FFFFFFFul);
if (foundMsg)
{
qDebug() << "It references a valid, registered message";
DBC_ATTRIBUTE_VALUE *foundAttrVal = foundMsg->findAttrValByName(match.captured(1));
if (foundAttrVal) {
foundAttrVal->value = processAttributeVal(match.captured(3), foundAttr->valType);
}
else
{
DBC_ATTRIBUTE_VALUE val;
val.attrName = match.captured(1);
val.value = processAttributeVal(match.captured(3), foundAttr->valType);
foundMsg->attributes.append(val);
}
}
}
}
regex.setPattern("^BA\\_ \\\"*([-\\w]+)\\\"* SG\\_ (\\d+) \\\"*([-\\w]+)\\\"* \\\"*([#\\w]+)\\\"*");
match = regex.match(line);
//captured 1 is the attribute name
//captured 2 is the message ID number (frame ID)
//captured 3 is the signal name to bind to
//captured 4 is the attribute value
if (match.hasMatch())
{
qDebug() << "Found an attribute setting line for a signal";
DBC_ATTRIBUTE *foundAttr = findAttributeByName(match.captured(1));
if (foundAttr)
{
qDebug() << "That signal attribute does exist";
DBC_MESSAGE *foundMsg = messageHandler->findMsgByID(match.captured(2).toULong() & 0x1FFFFFFFUL);
if (foundMsg)
{
qDebug() << "It references a valid, registered message";
DBC_SIGNAL *foundSig = foundMsg->sigHandler->findSignalByName(match.captured(3));
if (foundSig)
{
DBC_ATTRIBUTE_VALUE *foundAttrVal = foundSig->findAttrValByName(match.captured(1));
if (foundAttrVal) foundAttrVal->value = processAttributeVal(match.captured(3), foundAttr->valType);
else
{
DBC_ATTRIBUTE_VALUE val;
val.attrName = match.captured(1);
val.value = processAttributeVal(match.captured(3), foundAttr->valType);
foundSig->attributes.append(val);
}
}
}
}
}
regex.setPattern("^BA\\_ \\\"*([-\\w]+)\\\"* BU\\_ \\\"*([-\\w]+)\\\"* \\\"*([#\\w]+)\\\"*");
match = regex.match(line);
//captured 1 is the attribute name
//captured 2 is the name of the node
//captured 3 is the attribute value
if (match.hasMatch())
{
qDebug() << "Found an attribute setting line for a node";
DBC_ATTRIBUTE *foundAttr = findAttributeByName(match.captured(1));
if (foundAttr)
{
qDebug() << "That node attribute does exist";
DBC_NODE *foundNode = findNodeByName(match.captured(2));
if (foundNode)
{
qDebug() << "References a valid node name";
DBC_ATTRIBUTE_VALUE *foundAttrVal = foundNode->findAttrValByName(match.captured(1));
if (foundAttrVal) foundAttrVal->value = processAttributeVal(match.captured(3), foundAttr->valType);
else
{
DBC_ATTRIBUTE_VALUE val;
val.attrName = match.captured(1);
val.value = processAttributeVal(match.captured(3), foundAttr->valType);
foundNode->attributes.append(val);
}
}
return true;
}
}
return false;
}
bool DBCFile::parseDefaultAttrLine(QString line)
{
QRegularExpression regex;
QRegularExpressionMatch match;
regex.setPattern("^BA\\_DEF\\_DEF\\_ \\\"*([-\\w]+)\\\"* \\\"*([#\\w]*)\\\"*");
match = regex.match(line);
//captured 1 is the name of the attribute
//captured 2 is the default value for that attribute
if (match.hasMatch())
{
qDebug() << "Found an attribute default value line, searching for an attribute named " << match.captured(1) << "with data " << match.captured(2);
DBC_ATTRIBUTE *found = findAttributeByName(match.captured(1));
if (found)
{
switch (found->valType)
{
case ATTR_STRING:
found->defaultValue = match.captured(2);
break;
case ATTR_FLOAT:
found->defaultValue = match.captured(2).toFloat();
break;
case ATTR_INT:
found->defaultValue = match.captured(2).toInt();
break;
case ATTR_ENUM:
QString temp = match.captured(2);
found->defaultValue = 0;
for (int x = 0; x < found->enumVals.count(); x++)
{
if (!found->enumVals[x].compare(temp, Qt::CaseInsensitive))
{
found->defaultValue = x;
break;
}
}
}
qDebug() << "Matched an attribute. Setting default value to " << found->defaultValue;
return true;
}
}
return false;
}
bool DBCFile::loadFile(QString fileName)
{
QFile *inFile = new QFile(fileName);
QString line, rawLine;
QRegularExpression regex;
QRegularExpressionMatch match;
DBC_MESSAGE *currentMessage = nullptr;
DBC_ATTRIBUTE attr;
int numSigFaults = 0, numMsgFaults = 0;
int linesSinceYield = 0;
QString fileBaseName = QFileInfo(fileName).baseName();
bool inMultilineBU = false;
bool inMultilineValTable = false;
QString multilineValTable;
qDebug() << "DBC File: " << fileName;
if (!inFile->open(QIODevice::ReadOnly | QIODevice::Text))
{
delete inFile;
qDebug() << "Could not load the file!";
return false;
}
qDebug() << "Starting DBC load";
dbc_nodes.clear();
dbc_value_tables.clear();
messageHandler->removeAllMessages();
messageHandler->setMatchingCriteria(EXACT);
messageHandler->setFilterLabeling(false);
DBC_NODE falseNode;
falseNode.name = "Vector__XXX";
falseNode.comment = "Default node if none specified";
dbc_nodes.append(falseNode);
while (!inFile->atEnd()) {
rawLine = QString(inFile->readLine());
line = rawLine.simplified();
linesSinceYield++;
if (linesSinceYield > 100)
{
qApp->processEvents();
}
if (inMultilineBU)
{
if (rawLine.startsWith("\t") || rawLine.startsWith(" "))
{
DBC_NODE node;
node.sourceFileName = fileBaseName;
node.name = line;
dbc_nodes.append(node);
}
else inMultilineBU = false;
}
if (inMultilineValTable)
{
multilineValTable.append(" " + line);
if (line.endsWith(";"))
{
parseValueTableLine(multilineValTable);
multilineValTable.clear();
inMultilineValTable = false;
}
continue;
}
if (!inMultilineBU)
{
if (line.startsWith("BO_ ")) //defines a message
{
currentMessage = parseMessageLine(line);
if (currentMessage == nullptr) numMsgFaults++;
}
if (line.startsWith("SG_ ")) //defines a signal
{
if (!parseSignalLine(line, currentMessage)) numSigFaults++;
}
if (line.startsWith("SG_MUL_VAL_ ")) //defines a signal multiplexing value definition
{
if (!parseSignalMultiplexValueLine(line)) numSigFaults++;
}
if (line.startsWith("SIG_VALTYPE_ ")) //defines a signal value type
{
if (!parseSignalValueTypeLine(line)) numSigFaults++;
}
if (line.startsWith("BU_:")) //line specifies the nodes on this canbus
{
qDebug() << "Found a BU line";
regex.setPattern("^BU\\_\\:(.*)");
match = regex.match(line);
//captured 1 = a list of node names separated by spaces. No idea how many yet
if (match.hasMatch())
{
QStringList nodeStrings = match.captured(1).split(' ');
qDebug() << "Found " << nodeStrings.count() << " node names";
for (int i = 0; i < nodeStrings.count(); i++)
{
//qDebug() << nodeStrings[i];
if (nodeStrings[i].length() > 1)
{
DBC_NODE node;
node.sourceFileName = fileBaseName;
node.name = nodeStrings[i];
dbc_nodes.append(node);
}
}
inMultilineBU = true; //we might be... Need to check next line.
}
}
if (line.startsWith("CM_ SG_ "))
{
qDebug() << "Found an SG comment line";
regex.setPattern("^CM\\_ SG\\_ *(\\w+) *([-\\w]+) *\\\"(.*)\\\";");
match = regex.match(line);
//captured 1 is the ID to match against to get to the message
//captured 2 is the signal name from that message
//captured 3 is the comment itself
if (match.hasMatch())
{
//qDebug() << "Comment was: " << match.captured(3);
DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFul);
if (msg != nullptr)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByName(match.captured(2));
if (sig != nullptr)
{
sig->comment = match.captured(3);
}
}
}
}
if (line.startsWith("CM_ BO_ "))
{
qDebug() << "Found a BO comment line";
regex.setPattern("^CM\\_ BO\\_ *(\\w+) *\\\"(.*)\\\";");
match = regex.match(line);
//captured 1 is the ID to match against to get to the message
//captured 2 is the comment itself
if (match.hasMatch())
{
//qDebug() << "Comment was: " << match.captured(2);
DBC_MESSAGE *msg = messageHandler->findMsgByID(match.captured(1).toULong() & 0x1FFFFFFFul);
if (msg != nullptr)
{
msg->comment = match.captured(2);
}
}
}
if (line.startsWith("CM_ BU_ "))
{
qDebug() << "Found a BU comment line";
regex.setPattern("^CM\\_ BU\\_ *([-\\w]+) *\\\"(.*)\\\";");
match = regex.match(line);
//captured 1 is the Node name
//captured 2 is the comment itself
if (match.hasMatch())
{
//qDebug() << "Comment was: " << match.captured(2);
DBC_NODE *node = findNodeByName(match.captured(1));
if (node != nullptr)
{
node->comment = match.captured(2);
}
}
}
if (line.startsWith("VAL_TABLE_ "))
{
if (line.endsWith(";"))
{
parseValueTableLine(line);
}
else
{
multilineValTable = line;
inMultilineValTable = true;
}
}
//VAL_ (1090) (VCUPresentParkLightOC) (1 "Error present" 0 "Error not present") ;
if (line.startsWith("VAL_ "))
{
parseValueLine(line);
}
if (line.startsWith("BA_DEF_ SG_ "))
{
qDebug() << "Found a SG attribute line";
if (parseAttribute(line.right(line.length() - 12), attr))
{
//qDebug() << "Success";
attr.attrType = ATTR_TYPE_SIG;
dbc_attributes.append(attr);
}
}
else if (line.startsWith("BA_DEF_ BO_ ")) //definition of a message attribute
{
qDebug() << "Found a BO attribute line";
if (parseAttribute(line.right(line.length() - 12), attr))
{
qDebug() << "Success";
attr.attrType = ATTR_TYPE_MESSAGE;
dbc_attributes.append(attr);
}
}
else if (line.startsWith("BA_DEF_ BU_ ")) //definition of a node attribute
{
qDebug() << "Found a BU attribute line";
if (parseAttribute(line.right(line.length() - 12), attr))
{
//qDebug() << "Success";
attr.attrType = ATTR_TYPE_NODE;
dbc_attributes.append(attr);
}
}
else if (line.startsWith("BA_DEF_ ")) //definition of a root attribute
{
qDebug() << "Found a BU attribute line";
if (parseAttribute(line.right(line.length() - 9), attr))
{
//qDebug() << "Success";
attr.attrType = ATTR_TYPE_GENERAL;
dbc_attributes.append(attr);
}
}
if (line.startsWith("BA_DEF_DEF_ ")) //definition of default value for an attribute
{
parseDefaultAttrLine(line);
}
//BA_ "GenMsgCycleTime" BO_ 101 100;
if (line.startsWith("BA_ ")) //set value of attribute
{
parseAttributeLine(line);
}
}
}
//upon loading the file add our custom foreground and background color attributes if they don't exist already
if (!findAttributeByName("GenMsgBackgroundColor"))
{
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = QApplication::palette().color(QPalette::Base).name();
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "GenMsgBackgroundColor";
attr.valType = ATTR_STRING;
dbc_attributes.append(attr);
}
if (!findAttributeByName("GenMsgForegroundColor"))
{
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = QApplication::palette().color(QPalette::WindowText).name();
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "GenMsgForegroundColor";
attr.valType = ATTR_STRING;
dbc_attributes.append(attr);
}
DBC_ATTRIBUTE *mc_attr = findAttributeByName("matchingcriteria");
if (mc_attr)
{
messageHandler->setMatchingCriteria((MatchingCriteria_t)mc_attr->defaultValue.toInt());
}
else
{
messageHandler->setMatchingCriteria(EXACT);
}
DBC_ATTRIBUTE *fl_attr = findAttributeByName("filterlabeling");
if (fl_attr)
{
messageHandler->setFilterLabeling(fl_attr->defaultValue.toInt());
}
else
{
messageHandler->setFilterLabeling(false);
}
QColor DefaultBG = QColor(findAttributeByName("GenMsgBackgroundColor")->defaultValue.toString());
QColor DefaultFG = QColor(findAttributeByName("GenMsgForegroundColor")->defaultValue.toString());
for (int x = 0; x < messageHandler->getCount(); x++)
{
DBC_MESSAGE *msg = messageHandler->findMsgByIdx(x);
msg->bgColor = DefaultBG;
msg->fgColor = DefaultFG;
DBC_ATTRIBUTE_VALUE *thisBG = msg->findAttrValByName("GenMsgBackgroundColor");
DBC_ATTRIBUTE_VALUE *thisFG = msg->findAttrValByName("GenMsgForegroundColor");
if (thisBG) msg->bgColor = QColor(thisBG->value.toString());
if (thisFG) msg->fgColor = QColor(thisFG->value.toString());
for (int y = 0; y < msg->sigHandler->getCount(); y++)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByIdx(y);
//if this doesn't have a multiplex parent set but is multiplexed then it must have used
//simple multiplexing instead of any extended specification. So, fill in the multiplexor signal here
//and also write the extended entry for it too.
if (sig->isMultiplexed && (sig->multiplexParent == nullptr) && (msg->multiplexorSignal) )
{
sig->multiplexParent = msg->multiplexorSignal;
msg->multiplexorSignal->multiplexedChildren.append(sig);
}
if ( sig->isMultiplexed && (!msg->multiplexorSignal) ) //marked multiplexed but there is no multiplexor.
{
sig->isMultiplexed = false; //can't multiplex if there is no multiplexor!
}
}
}
if (numSigFaults > 0 || numMsgFaults > 0)
{
QMessageBox msgBox;
QString msg = "DBC file loaded with errors!\n";
msg += "Number of faulty message entries: " + QString::number(numMsgFaults) + "\n";
msg += "Number of faulty signal entries: " + QString::number(numSigFaults) + "\n\n";
msg += "Faulty entries have not been loaded.\n\n";
msg += "All other entries are, however, loaded.";
msgBox.setText(msg);
msgBox.exec();
}
inFile->close();
delete inFile;
QStringList fileList = fileName.split('/');
this->fileName = fileList[fileList.length() - 1]; //whoops... same name as parameter in this function.
filePath = fileName.left(fileName.length() - this->fileName.length());
assocBuses = -1;
isDirty = false;
return true;
}
QVariant DBCFile::processAttributeVal(QString input, DBC_ATTRIBUTE_VAL_TYPE typ)
{
QVariant out;
switch (typ)
{
case ATTR_STRING:
out = input;
break;
case ATTR_FLOAT:
out = input.toFloat();
break;
case ATTR_INT:
case ATTR_ENUM:
out = input.toInt();
break;
}
return out;
}
bool DBCFile::parseAttribute(QString inpString, DBC_ATTRIBUTE &attr)
{
bool goodAttr = false;
QRegularExpression regex;
QRegularExpressionMatch match;
regex.setPattern("\\\"*(\\w+)\\\"* \\\"*(\\w+)\\\"* (\\d+) (\\d+)");
match = regex.match(inpString);
//captured 1 is the name of the attribute to set up
//captured 2 is the type of signal attribute to create.
//captured 3 is the lower bound value for this attribute
//captured 4 is the upper bound value for this attribute
if (match.hasMatch())
{
qDebug() << "Parsing an attribute with low/high values";
attr.name = match.captured(1);
QString typ = match.captured(2);
attr.attrType = ATTR_TYPE_SIG;
attr.lower = 0;
attr.upper = 0;
attr.valType = ATTR_STRING;
if (!typ.compare("INT", Qt::CaseInsensitive))
{
qDebug() << "INT attribute named " << attr.name;
attr.valType = ATTR_INT;
attr.lower = match.captured(3).toInt();
attr.upper = match.captured(4).toInt();
goodAttr = true;
}
if (!typ.compare("FLOAT", Qt::CaseInsensitive))
{
qDebug() << "FLOAT attribute named " << attr.name;
attr.valType = ATTR_FLOAT;
attr.lower = match.captured(3).toDouble();
attr.upper = match.captured(4).toDouble();
goodAttr = true;
}
if (!typ.compare("STRING", Qt::CaseInsensitive))
{
qDebug() << "STRING attribute named " << attr.name;
attr.valType = ATTR_STRING;
goodAttr = true;
}
}
else
{
regex.setPattern("\\\"*(\\w+)\\\"* \\\"*(\\w+)\\\"* (.*)");
match = regex.match(inpString);
//Same as above but no upper/lower bound values.
if (match.hasMatch())
{
qDebug() << "Parsing an attribute without boundaries";
attr.name = match.captured(1);
QString typ = match.captured(2);
attr.lower = 0;
attr.upper = 0;
attr.attrType = ATTR_TYPE_SIG;
if (!typ.compare("INT", Qt::CaseInsensitive))
{
qDebug() << "INT attribute named " << attr.name;
attr.valType = ATTR_INT;
goodAttr = true;
}
if (!typ.compare("FLOAT", Qt::CaseInsensitive))
{
qDebug() << "FLOAT attribute named " << attr.name;
attr.valType = ATTR_FLOAT;
goodAttr = true;
}
if (!typ.compare("STRING", Qt::CaseInsensitive))
{
qDebug() << "STRING attribute named " << attr.name;
attr.valType = ATTR_STRING;
goodAttr = true;
}
if (!typ.compare("ENUM", Qt::CaseInsensitive))
{
qDebug() << "ENUM attribute named " << attr.name;
QStringList enumLst = match.captured(3).split(',');
foreach (QString enumStr, enumLst)
{
attr.enumVals.append(Utility::unQuote(enumStr));
qDebug() << "Enum value: " << enumStr;
}
attr.valType = ATTR_ENUM;
goodAttr = true;
}
}
}
return goodAttr;
}
bool DBCFile::saveFile(QString fileName)
{
// sort();
messageHandler->sort(); // sort messages, each of which sorts its signals too
int nodeNumber = 1;
int msgNumber = 1;
int sigNumber = 1;
QFile *outFile = new QFile(fileName);
QString nodesOutput, msgOutput, commentsOutput, valuesOutput, valueTableOutput, extMultiplexOutput;
QString defaultsOutput, attrValOutput, sigValTypeOutput;
bool hasExtendedMultiplexing = false;
if (!outFile->open(QIODevice::WriteOnly | QIODevice::Text))
{
delete outFile;
return false;
}
//right now it outputs a standard hard coded boilerplate
outFile->write("VERSION \"\"\n");
outFile->write("\n");
outFile->write("\n");
outFile->write("NS_ :\n");
outFile->write(" NS_DESC_\n");
outFile->write(" CM_\n");
outFile->write(" BA_DEF_\n");
outFile->write(" BA_\n");
outFile->write(" VAL_\n");
outFile->write(" CAT_DEF_\n");
outFile->write(" CAT_\n");
outFile->write(" FILTER\n");
outFile->write(" BA_DEF_DEF_\n");
outFile->write(" EV_DATA_\n");
outFile->write(" ENVVAR_DATA_\n");
outFile->write(" SGTYPE_\n");
outFile->write(" SGTYPE_VAL_\n");
outFile->write(" BA_DEF_SGTYPE_\n");
outFile->write(" BA_SGTYPE_\n");
outFile->write(" SIG_TYPE_REF_\n");
outFile->write(" VAL_TABLE_\n");
outFile->write(" SIG_GROUP_\n");
outFile->write(" SIG_VALTYPE_\n");
outFile->write(" SIGTYPE_VALTYPE_\n");
outFile->write(" BO_TX_BU_\n");
outFile->write(" BA_DEF_REL_\n");
outFile->write(" BA_REL_\n");
outFile->write(" BA_DEF_DEF_REL_\n");
outFile->write(" BU_SG_REL_\n");
outFile->write(" BU_EV_REL_\n");
outFile->write(" BU_BO_REL_\n");
outFile->write(" SG_MUL_VAL_\n");
outFile->write("\n");
outFile->write("BS_: \n");
//Build list of nodes line
nodesOutput.append("BU_: ");
for (int x = 0; x < dbc_nodes.count(); x++)
{
DBC_NODE node = dbc_nodes[x];
if (node.name.compare("Vector__XXX", Qt::CaseInsensitive) != 0)
{
if (node.name.length() < 1) //detect an empty string and fill it out with something
{
node.name = "NODE" + QString::number(nodeNumber);
nodeNumber++;
}
nodesOutput.append(node.name + " ");
if (node.comment.length() > 0)
{
commentsOutput.append("CM_ BU_ " + node.name + " \"" + node.comment + "\";\n");
}
if (node.attributes.count() > 0)
{
foreach (DBC_ATTRIBUTE_VALUE val, node.attributes) {
attrValOutput.append("BA_ \"" + val.attrName + "\" BU_ ");
switch (val.value.type())
{
case QVariant::Type::String:
attrValOutput.append("\"" + val.value.toString() + "\";\n");
break;
case QVariant::Type::Bool:
attrValOutput.append(QString::number(val.value.toBool() ? 1 : 0) + ";\n");
break;
default:
attrValOutput.append(val.value.toString() + ";\n");
break;
}
}
}
}
}
nodesOutput.append("\n");
outFile->write(nodesOutput.toUtf8());
for (int x = 0; x < dbc_value_tables.count(); x++)
{
DBC_VAL_TABLE table = dbc_value_tables[x];
valueTableOutput.append("VAL_TABLE_ " + table.name);
for (int v = 0; v < table.valList.count(); v++)
{
DBC_VAL_ENUM_ENTRY val = table.valList[v];
valueTableOutput.append(" " + QString::number(val.value) + " \"" + val.descript + "\"");
}
valueTableOutput.append(";\n");
}
if (!valueTableOutput.isEmpty())
{
outFile->write(valueTableOutput.toUtf8());
valueTableOutput.clear();
}
//Go through all messages one at at time issuing the message line then all signals in there too.
for (int x = 0; x < messageHandler->getCount(); x++)
{
DBC_MESSAGE *msg = messageHandler->findMsgByIdx(x);
if (msg->name.length() < 1) //detect an empty string and fill it out with something
{
msg->name = "MSG" + QString::number(msgNumber);
msgNumber++;
}
uint32_t ID = msg->ID;
if (msg->ID > 0x7FF || msg->extendedID)
{
ID += 0x80000000ul; //set bit 31 if this ID is extended.
}
msgOutput.append("BO_ " + QString::number(ID) + " " + msg->name + ": " + QString::number(msg->len) +
" " + msg->sender->name + "\n");
if (msg->comment.length() > 0)
{
commentsOutput.append("CM_ BO_ " + QString::number(ID) + " \"" + msg->comment + "\";\n");
}
//If this message has attributes then compile them into attributes list to output later on.
if (msg->attributes.count() > 0)
{
foreach (DBC_ATTRIBUTE_VALUE val, msg->attributes) {
attrValOutput.append("BA_ \"" + val.attrName + "\" BO_ " + QString::number(ID) + " ");
switch (val.value.type())
{
case QVariant::Type::String:
attrValOutput.append("\"" + val.value.toString() + "\";\n");
break;
case QVariant::Type::Bool:
attrValOutput.append(QString::number(val.value.toBool() ? 1 : 0) + ";\n");
break;
default:
attrValOutput.append(val.value.toString() + ";\n");
break;
}
}
}
for (int s = 0; s < msg->sigHandler->getCount(); s++)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByIdx(s);
if (sig->name.length() < 1) //detect an empty string and fill it out with something
{
sig->name = "SIG" + QString::number(sigNumber);
sigNumber++;
}
msgOutput.append(" SG_ " + sig->name);
if (sig->isMultiplexed)
{
msgOutput.append(" m" + QString::number(sig->getSimpleMultiplexValue()));
}
if (sig->isMultiplexor)
{
if (!sig->isMultiplexed) msgOutput.append(" ");
msgOutput.append("M");
}
//check for the two telltale signs that we've got extended multiplexing going on.
if (sig->isMultiplexed && sig->isMultiplexor) hasExtendedMultiplexing = true;
if (sig->hasExtendedMultiplexing) hasExtendedMultiplexing = true;
msgOutput.append(" : " + QString::number(sig->startBit) + "|" + QString::number(sig->signalSize) + "@");
switch (sig->valType)
{
case UNSIGNED_INT:
if (sig->intelByteOrder) msgOutput.append("1+");
else msgOutput.append("0+");
break;
case SIGNED_INT:
case SP_FLOAT:
case DP_FLOAT:
if (sig->intelByteOrder) msgOutput.append("1-");
else msgOutput.append("0-");
break;
case STRING:
msgOutput.append("4-");
break;
default:
msgOutput.append("0-");
break;
}
msgOutput.append(" (" + QString::number(sig->factor) + "," + QString::number(sig->bias) + ") [" +
QString::number(sig->min) + "|" + QString::number(sig->max) + "] \"" + sig->unitName
+ "\" " + sig->receiver->name + "\n");
if (sig->valType == SP_FLOAT || sig->valType == DP_FLOAT)
sigValTypeOutput.append("SIG_VALTYPE_ " + QString::number(ID) + " " + sig->name + " : " + QString::number(sig->valType == SP_FLOAT ? 1 : 2) + ";\n");
if (sig->comment.length() > 0)
{
commentsOutput.append("CM_ SG_ " + QString::number(ID) + " " + sig->name + " \"" + sig->comment + "\";\n");
}
//if this signal has attributes then compile them in a special list of attributes
if (sig->attributes.count() > 0)
{
foreach (DBC_ATTRIBUTE_VALUE val, sig->attributes) {
attrValOutput.append("BA_ \"" + val.attrName + "\" SG_ " + QString::number(ID) + " " + sig->name + " ");
switch (val.value.type())
{
case QVariant::Type::String:
attrValOutput.append("\"" + val.value.toString() + "\";\n");
break;
case QVariant::Type::Bool:
attrValOutput.append(QString::number(val.value.toBool() ? 1 : 0) + ";\n");
break;
default:
attrValOutput.append(val.value.toString() + ";\n");
break;
}
}
}
if (sig->valList.count() > 0)
{
valuesOutput.append("VAL_ " + QString::number(ID) + " " + sig->name);
for (int v = 0; v < sig->valList.count(); v++)
{
DBC_VAL_ENUM_ENTRY val = sig->valList[v];
valuesOutput.append(" " + QString::number(val.value) + " \"" + val.descript +"\"");
}
valuesOutput.append(";\n");
}
}
msgOutput.append("\n");
//write it out every message so the string doesn't end up too huge
outFile->write(msgOutput.toUtf8());
msgOutput.clear(); //got to reset it after writing
}
outFile->write(commentsOutput.toUtf8());
commentsOutput.clear();
//Now dump out all of the stored attributes
for (int x = 0; x < dbc_attributes.count(); x++)
{
msgOutput.append("BA_DEF_ ");
switch (dbc_attributes[x].attrType)
{
case ATTR_TYPE_GENERAL:
break;
case ATTR_TYPE_NODE:
msgOutput.append("BU_ ");
break;
case ATTR_TYPE_MESSAGE:
msgOutput.append("BO_ ");
break;
case ATTR_TYPE_SIG:
msgOutput.append("SG_ ");
break;
case ATTR_TYPE_ANY:
break;
}
msgOutput.append("\"" + dbc_attributes[x].name + "\" ");
switch (dbc_attributes[x].valType)
{
case ATTR_INT:
msgOutput.append("INT " + QString::number(dbc_attributes[x].lower) + " " + QString::number(dbc_attributes[x].upper));
break;
case ATTR_FLOAT:
msgOutput.append("FLOAT " + QString::number(dbc_attributes[x].lower) + " " + QString::number(dbc_attributes[x].upper));
break;
case ATTR_STRING:
msgOutput.append("STRING ");
break;
case ATTR_ENUM:
msgOutput.append("ENUM ");
foreach (QString str, dbc_attributes[x].enumVals)
{
msgOutput.append("\"" + str + "\",");
}
msgOutput.truncate(msgOutput.length() - 1); //remove trailing ,
break;
}
msgOutput.append(";\n");
outFile->write(msgOutput.toUtf8());
msgOutput.clear(); //got to reset it after writing
if (dbc_attributes[x].defaultValue.isValid())
{
defaultsOutput.append("BA_DEF_DEF_ \"" + dbc_attributes[x].name + "\" ");
switch (dbc_attributes[x].valType)
{
case ATTR_STRING:
defaultsOutput.append("\"" + dbc_attributes[x].defaultValue.toString() + "\";\n");
break;
case ATTR_ENUM:
defaultsOutput.append("\"" + dbc_attributes[x].enumVals[dbc_attributes[x].defaultValue.toInt()] + "\";\n");
break;
case ATTR_INT:
defaultsOutput.append(QString::number(dbc_attributes[x].defaultValue.toLongLong()) + ";\n");
break;
case ATTR_FLOAT:
defaultsOutput.append(dbc_attributes[x].defaultValue.toString() + ";\n");
break;
}
}
}
//extended multiplexing uses SG_MUL_VAL_ to specify the relationships. If a signal is marked
//as multiplexed then output a record for it. That's the most complete option. We've already
//given the single value multiplex above for backward compatibility with things that don't support extended mode
if (hasExtendedMultiplexing)
{
for (int x = 0; x < messageHandler->getCount(); x++)
{
DBC_MESSAGE *msg = messageHandler->findMsgByIdx(x);
uint32_t ID = msg->ID;
if (msg->ID > 0x7FF || msg->extendedID)
{
ID += 0x80000000ul; //set bit 31 if this ID is extended.
}
for (int s = 0; s < msg->sigHandler->getCount(); s++)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByIdx(s);
if (sig->isMultiplexed)
{
msgOutput.append("SG_MUL_VAL_ " + QString::number(ID) + " ");
msgOutput.append(sig->name + " " + sig->multiplexParent->name + " ");
msgOutput.append(sig->multiplexDbcString() + ";");
msgOutput.append("\n");
extMultiplexOutput.append(msgOutput);
msgOutput.clear(); //got to reset it after writing
}
}
}
}
//now write out all of the accumulated comments and value tables from above
outFile->write(defaultsOutput.toUtf8());
outFile->write(attrValOutput.toUtf8());
outFile->write(valuesOutput.toUtf8());
outFile->write(extMultiplexOutput.toUtf8());
if (!sigValTypeOutput.isEmpty())
outFile->write(sigValTypeOutput.toUtf8());
attrValOutput.clear();
defaultsOutput.clear();
valuesOutput.clear();
extMultiplexOutput.clear();
sigValTypeOutput.clear();
outFile->close();
delete outFile;
isDirty = false;
QStringList fileList = fileName.split('/');
this->fileName = fileList[fileList.length() - 1]; //whoops... same name as parameter in this function.
filePath = fileName.left(fileName.length() - this->fileName.length());
return true;
}
void DBCHandler::saveDBCFile(int idx)
{
QSettings settings;
if (loadedFiles.count() == 0) return;
if (idx < 0) return;
if (idx >= loadedFiles.count()) return;
QString filename;
QFileDialog dialog;
QStringList filters;
filters.append(QString(tr("DBC File (*.dbc)")));
dialog.setDirectory(settings.value("DBC/LoadSaveDirectory", dialog.directory().path()).toString());
dialog.setFileMode(QFileDialog::AnyFile);
dialog.setNameFilters(filters);
dialog.setViewMode(QFileDialog::Detail);
dialog.setAcceptMode(QFileDialog::AcceptSave);
dialog.selectFile(loadedFiles[idx].getFullFilename());
if (dialog.exec() == QDialog::Accepted)
{
filename = dialog.selectedFiles()[0];
if (!filename.contains('.')) filename += ".dbc";
loadedFiles[idx].saveFile(filename);
settings.setValue("DBC/LoadSaveDirectory", dialog.directory().path());
}
}
int DBCHandler::createBlankFile()
{
DBCFile newFile;
DBC_ATTRIBUTE attr;
//add our custom attributes to the new file so that we know they're already there.
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = QApplication::palette().color(QPalette::Base).name();
qDebug() << attr.defaultValue;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "GenMsgBackgroundColor";
attr.valType = ATTR_STRING;
newFile.dbc_attributes.append(attr);
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = QApplication::palette().color(QPalette::WindowText).name();
qDebug() << attr.defaultValue;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "GenMsgForegroundColor";
attr.valType = ATTR_STRING;
newFile.dbc_attributes.append(attr);
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = 0;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "matchingcriteria";
attr.valType = ATTR_INT;
newFile.dbc_attributes.append(attr);
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = 0;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "filterlabeling";
attr.valType = ATTR_INT;
newFile.dbc_attributes.append(attr);
DBC_NODE falseNode;
falseNode.name = "Vector__XXX";
falseNode.comment = "Default node if none specified";
newFile.dbc_nodes.append(falseNode);
newFile.setAssocBus(-1);
loadedFiles.append(newFile);
return loadedFiles.count();
}
DBCFile* DBCHandler::loadDBCFile(QString filename)
{
DBCFile newFile;
if (newFile.loadFile(filename))
{
loadedFiles.append(newFile);
}
else
{
//createBlankFile();
}
if (loadedFiles.count()> 0) return &loadedFiles.last();
else return nullptr;
}
//the only reason to even bother sending the index is to see if
//the user wants to replace an already loaded DBC.
//Otherwise add a new one. Well, always add a new one.
//If a valid index is passed we'll remove that one and then commence
//adding. Otherwise, just go straight to adding.
DBCFile* DBCHandler::loadDBCFile(int idx)
{
if (idx > -1 && idx < loadedFiles.count()) removeDBCFile(idx);
QString filename;
QFileDialog dialog;
QSettings settings;
QStringList filters;
filters.append(QString(tr("DBC File (*.dbc)")));
dialog.setDirectory(settings.value("DBC/LoadSaveDirectory", dialog.directory().path()).toString());
dialog.setFileMode(QFileDialog::ExistingFile);
dialog.setNameFilters(filters);
dialog.setViewMode(QFileDialog::Detail);
if (dialog.exec() == QDialog::Accepted)
{
filename = dialog.selectedFiles()[0];
//right now there is only one file type that can be loaded here so just do it.
settings.setValue("DBC/LoadSaveDirectory", dialog.directory().path());
return loadDBCFile(filename);
}
return nullptr;
}
DBCFile* DBCHandler::loadSecretCSVFile(QString filename)
{
DBCFile *thisFile;
DBC_MESSAGE *pMsg;
DBC_SIGNAL *pSig;
QByteArray line;
int lineCounter = 0;
createBlankFile();
thisFile = &loadedFiles.last();
QFile *inFile = new QFile(filename);
if (!inFile->open(QIODevice::ReadOnly | QIODevice::Text))
{
delete inFile;
return nullptr;
}
//burn first two lines. contains header
line = inFile->readLine().simplified().toUpper();
line = inFile->readLine().simplified().toUpper();
while (!inFile->atEnd())
{
lineCounter++;
if (lineCounter > 100)
{
qApp->processEvents();
lineCounter = 0;
}
line = inFile->readLine().simplified().toUpper();
qDebug() << line;
QList<QByteArray> tokens = line.split(',');
if (tokens.length() == 10)
{
//Message,CAN ID,Signal,Short Name,Start Byte,Start Bit,Len,Data,Range,Conversion
//Whl_Rotational_Stat_CheckVal_CE,$0C0,Wheel Rotational Status Check Data,WhlRotatStatChkData, 0, 7, 40,PKT,N/A,N/A
// 0 1 2 3 4 5 6 7 8 9
if (tokens[0].length() > 2) //start of a signal def that starts a new message
{
DBC_MESSAGE msg;
msg.name = tokens[0];
msg.ID = tokens[1].mid(1).toLong(nullptr, 16);
msg.comment = "";
msg.len = 8;
msg.sender = thisFile->findNodeByIdx(0);
msg.bgColor = QColor(thisFile->findAttributeByName("GenMsgBackgroundColor")->defaultValue.toString());
msg.fgColor = QColor(thisFile->findAttributeByName("GenMsgForegroundColor")->defaultValue.toString());
thisFile->messageHandler->addMessage(msg);
pMsg = thisFile->messageHandler->findMsgByID(msg.ID);
DBC_SIGNAL sig;
sig.parentMessage = pMsg;
sig.name = tokens[3];
sig.comment = tokens[2];
int startBit = (tokens[4].toInt() * 8) + tokens[5].toInt();
sig.startBit = startBit;
sig.signalSize = tokens[6].toInt();
sig.intelByteOrder = false; //always for global-a?
sig.receiver = thisFile->findNodeByIdx(0);
QList<QByteArray> rangeToks = tokens[8].split('-');
if (rangeToks.length() == 2)
{
sig.min = rangeToks[0].simplified().toDouble();
sig.max = rangeToks[1].simplified().toDouble();
}
if (tokens[9].startsWith("E = N")) //not a value table, instead do scaling and bias
{
QList<QByteArray> scalingToks = tokens[9].simplified().split(' ');
sig.factor = scalingToks[4].toDouble();
if (scalingToks.count() > 5)
{
if (scalingToks[5] == "+")
{
sig.bias = scalingToks[6].toDouble();
}
if (scalingToks[5] == "-")
{
sig.bias = scalingToks[6].toDouble() * 1.0;
}
}
else
{
sig.factor = 1;
sig.bias = 0;
}
}
else if (tokens[9].startsWith("$")) //one or more values table entries
{
//$0=Inactive
QList<QByteArray> valToks = tokens[9].simplified().mid(1).split('=');
DBC_VAL_ENUM_ENTRY entry;
entry.value = valToks[0].toInt();
entry.descript = valToks[1];
sig.valList.append(entry);
}
pMsg->sigHandler->addSignal(sig);
pSig = pMsg->sigHandler->findSignalByIdx(pMsg->sigHandler->getCount()-1);
}
// 0 1 2 3 4 5 6 7 8 9
//Message,CAN ID,Signal,Short Name,Start Byte,Start Bit,Len,Data,Range,Conversion
//,,Wheel Rotational Status Check Data : Left Driven Sequence Number,WRSCD_LftDrvnSqNm, 0, 7, 2,UNM,0 - 3 ,E = N * 1
// 2 3 4 5 6 7 8 9
else if (tokens[2].length() > 2) //signal definition continuation of previous message
{
DBC_SIGNAL sig;
sig.parentMessage = pMsg;
sig.name = tokens[3];
sig.comment = tokens[2];
int startBit = (tokens[4].toInt() * 8) + tokens[5].toInt();
sig.startBit = startBit;
sig.signalSize = tokens[6].toInt();
sig.intelByteOrder = false; //always for global-a?
sig.receiver = thisFile->findNodeByIdx(0);
QList<QByteArray> rangeToks = tokens[8].split('-');
if (rangeToks.length() == 2)
{
sig.min = rangeToks[0].simplified().toDouble();
sig.max = rangeToks[1].simplified().toDouble();
}
if (tokens[9].startsWith("E = N")) //not a value table, instead do scaling and bias
{
QList<QByteArray> scalingToks = tokens[9].simplified().split(' ');
sig.factor = scalingToks[4].toDouble();
if (scalingToks.count() > 5)
{
if (scalingToks[5] == "+")
{
sig.bias = scalingToks[6].toDouble();
}
if (scalingToks[5] == "-")
{
sig.bias = scalingToks[6].toDouble() * 1.0;
}
}
else
{
sig.bias = 0;
sig.factor = 1;
}
}
else if (tokens[9].startsWith("$")) //one or more values table entries
{
//$0=Inactive
QList<QByteArray> valToks = tokens[9].simplified().mid(1).split('=');
DBC_VAL_ENUM_ENTRY entry;
entry.value = valToks[0].toInt();
entry.descript = valToks[1];
sig.valList.append(entry);
}
pMsg->sigHandler->addSignal(sig);
pSig = pMsg->sigHandler->findSignalByIdx(pMsg->sigHandler->getCount()-1);
}
else if (tokens[9].length() > 2) //additional values
{
//$0=Inactive
QList<QByteArray> valToks = tokens[9].simplified().mid(1).split('=');
DBC_VAL_ENUM_ENTRY entry;
entry.value = valToks[0].toInt();
entry.descript = valToks[1];
pSig->valList.append(entry);
}
}
}
thisFile->setDirtyFlag();
return thisFile;
}
DBCFile* DBCHandler::loadJSONFile(QString filename)
{
QSettings settings;
DBCFile *thisFile;
DBC_MESSAGE *pMsg;
createBlankFile();
thisFile = &loadedFiles.last();
QFile *inFile = new QFile(filename);
if (!inFile->open(QIODevice::ReadOnly | QIODevice::Text))
{
qDebug() << "Could not open JSON file for reading.";
delete inFile;
return nullptr;
}
QByteArray wholeFileData = inFile->readAll();
inFile->close();
delete inFile;
//qDebug() << "Data Length: " << wholeFileData.length();
QJsonDocument jsonDoc = QJsonDocument::fromJson(wholeFileData);
if (jsonDoc.isNull())
{
qDebug() << "Couldn't load and parse the JSON file for some reason.";
return nullptr;
}
qDebug() << "Loaded JSON";
QJsonObject jsonObj = jsonDoc.object();
QJsonObject jsonMessages = jsonObj["messages"].toObject();
QJsonObject::iterator iter;
for (iter = jsonMessages.begin(); iter != jsonMessages.end(); iter++)
{
qDebug() << iter.key();
DBC_MESSAGE msg;
msg.ID = static_cast<uint32_t>(iter->toObject().find("message_id").value().toInt());
msg.name = QString(iter.key().toUtf8());
msg.len = static_cast<unsigned int>(iter->toObject().find("length_bytes").value().toInt());
msg.sender = thisFile->findNodeByIdx(0);
QString nodeName = iter->toObject().find("originNode").value().toString();
msg.sender = thisFile->findNodeByName(nodeName);
msg.bgColor = QColor(thisFile->findAttributeByName("GenMsgBackgroundColor")->defaultValue.toString());
msg.fgColor = QColor(thisFile->findAttributeByName("GenMsgForegroundColor")->defaultValue.toString());
if (!msg.sender && nodeName.length() > 1)
{
DBC_NODE node;
node.name = nodeName;
thisFile->dbc_nodes.append(node);
msg.sender = thisFile->findNodeByName(nodeName);
}
if (nodeName.length() < 2) msg.sender = thisFile->findNodeByIdx(0);
thisFile->messageHandler->addMessage(msg);
pMsg = thisFile->messageHandler->findMsgByID(msg.ID);
if (!pMsg)
{
qDebug() << "pMsg was null... I have no idea how that is possible. DEBUG ME";
return nullptr;
}
QJsonObject jsonSigs = iter->toObject().find("signals").value().toObject();
QJsonObject::iterator sigIter;
for (sigIter = jsonSigs.begin(); sigIter != jsonSigs.end(); sigIter++)
{
qDebug() << sigIter.key();
DBC_SIGNAL sig;
QJsonObject sigObj = sigIter->toObject();
if (sigObj.isEmpty())
{
qDebug() << "EMPTY!?";
}
sig.name = QString(sigIter.key().toUtf8());
sig.factor = sigObj.find("scale").value().toDouble();
sig.bias = sigObj.find("offset").value().toDouble();
sig.max = sigObj.find("max").value().toDouble();
sig.min = sigObj.find("min").value().toDouble();
sig.startBit = sigObj.find("start_position").value().toInt();
sig.unitName = sigObj.find("units").value().toString();
sig.signalSize = sigObj.find("width").value().toInt();
sig.isMultiplexed = false;
sig.isMultiplexor = false;
sig.parentMessage = pMsg;
if (!sigObj.find("mux_id")->isUndefined())
{
QJsonValue muxVal = sigObj.find("mux_id").value();
sig.addMultiplexRange(muxVal.toInt(), muxVal.toInt());
}
QJsonValue muxerVal = sigObj.find("is_muxer").value();
if (!muxerVal.isNull())
{
if (muxerVal.toBool())
{
sig.isMultiplexor = true;
}
}
QJsonObject valuesObj = sigObj.find("value_description")->toObject();
if (!valuesObj.isEmpty())
{
QJsonObject::iterator valIter;
for (valIter = valuesObj.begin(); valIter != valuesObj.end(); valIter++)
{
DBC_VAL_ENUM_ENTRY valEnum;
valEnum.value = valIter.value().toInt();
valEnum.descript = valIter.key().toUtf8();
sig.valList.append(valEnum);
}
}
QJsonArray rxArray = sigObj.find("receivers")->toArray();
if (rxArray.size() < 1) sig.receiver = thisFile->findNodeByIdx(0);
else
{
qDebug() << rxArray[0].toString();
sig.receiver = thisFile->findNodeByName(rxArray[0].toString());
if (!sig.receiver && rxArray[0].toString().length() > 1)
{
DBC_NODE node;
node.name = rxArray[0].toString();
thisFile->dbc_nodes.append(node);
sig.receiver = thisFile->findNodeByName(rxArray[0].toString());
}
if (!sig.receiver) sig.receiver = thisFile->findNodeByIdx(0);
}
if (!sigObj.find("endianness").value().toString().compare("BIG"))
{
sig.intelByteOrder = false;
}
else sig.intelByteOrder = true;
if (!sigObj.find("signedness").value().toString().compare("UNSIGNED"))
{
sig.valType = DBC_SIG_VAL_TYPE::UNSIGNED_INT;
}
else sig.valType = DBC_SIG_VAL_TYPE::SIGNED_INT;
pMsg->sigHandler->addSignal(sig);
if (sig.isMultiplexor) //if this signal was the multiplexor then store that info
{
DBC_SIGNAL *pSig = pMsg->sigHandler->findSignalByName(sig.name);
if (pSig) pMsg->multiplexorSignal = pSig;
}
}
}
for (int x = 0; x < thisFile->messageHandler->getCount(); x++)
{
DBC_MESSAGE *msg = thisFile->messageHandler->findMsgByIdx(x);
for (int y = 0; y < msg->sigHandler->getCount(); y++)
{
DBC_SIGNAL *sig = msg->sigHandler->findSignalByIdx(y);
//if this doesn't have a multiplex parent set but is multiplexed then it must have used
//simple multiplexing instead of any extended specification. So, fill in the multiplexor signal here
//and also write the extended entry for it too.
if (sig->isMultiplexed && (sig->multiplexParent == nullptr) )
{
sig->multiplexParent = msg->multiplexorSignal;
msg->multiplexorSignal->multiplexedChildren.append(sig);
}
}
}
thisFile->setDirtyFlag();
return thisFile;
}
void DBCHandler::removeDBCFile(int idx)
{
if (loadedFiles.count() == 0) return;
if (idx < 0) return;
if (idx >= loadedFiles.count()) return;
loadedFiles.removeAt(idx);
}
void DBCHandler::removeAllFiles()
{
loadedFiles.clear();
}
void DBCHandler::swapFiles(int pos1, int pos2)
{
if (loadedFiles.count() < 2) return;
if (pos1 < 0) return;
if (pos1 >= loadedFiles.count()) return;
if (pos2 < 0) return;
if (pos2 >= loadedFiles.count()) return;
loadedFiles.swapItemsAt(pos1, pos2);
}
/*
* Convenience function that encapsulates a whole lot of the details.
* You give it a canbus frame and it'll tell you whether there is a loaded DBC file that can
* interpret that frame for you.
* Returns nullptr if there is no message definition that matches.
*/
DBC_MESSAGE* DBCHandler::findMessage(const CANFrame &frame)
{
for(int i = 0; i < loadedFiles.count(); i++)
{
if (loadedFiles[i].getAssocBus() == -1 || frame.bus == loadedFiles[i].getAssocBus())
{
DBC_MESSAGE* msg = loadedFiles[i].messageHandler->findMsgByID(frame.frameId());
if (msg != nullptr) return msg;
}
}
return nullptr;
}
DBC_MESSAGE* DBCHandler::findMessage(uint32_t id)
{
for(int i = 0; i < loadedFiles.count(); i++)
{
DBC_MESSAGE* msg = loadedFiles[i].messageHandler->findMsgByID(id);
if (msg != nullptr)
{
return msg;
}
}
return nullptr;
}
// This function won't care which bus the DBC file is associated, but will return any message as long as ID matches and the file
// has filter labeling enabled.
// Returns the found message as well as the matching criteria (exact/J1939/GMLAN)
// Used for quickly populating the Frame Filtering section with interpreted values
DBC_MESSAGE* DBCHandler::findMessageForFilter(uint32_t id, MatchingCriteria_t * matchingCriteria)
{
for(int i = 0; i < loadedFiles.count(); i++)
{
if (loadedFiles[i].messageHandler->filterLabeling())
{
DBC_MESSAGE* msg = loadedFiles[i].messageHandler->findMsgByID(id);
if (msg != nullptr)
{
if (matchingCriteria) *matchingCriteria = loadedFiles[i].messageHandler->getMatchingCriteria();
return msg;
}
}
}
return nullptr;
}
/*
* As above, a real shortcut function that searches all files in order to try to find a message with the given name
* This has pitfalls because the same message name can easily exist in multiple dbc files AND nodes in a single file
* By DBC standards only the MSG ID is required to be unique
*/
DBC_MESSAGE* DBCHandler::findMessage(const QString msgName)
{
DBC_MESSAGE *msg = nullptr;
for(int i = 0; i < loadedFiles.count(); i++)
{
DBCFile * file = getFileByIdx(i);
msg = file->messageHandler->findMsgByName(msgName);
if (msg) return msg; //if it's not null then we have a match so return it
}
return nullptr; //no match, tough luck, return null
}
DBC_MESSAGE* DBCHandler::findMessage(const QString msgName, const QString nodeName, const QString fileNameNoExt)
{
DBC_MESSAGE *msg = nullptr;
for(int i = 0; i < loadedFiles.count(); i++)
{
DBCFile * file = getFileByIdx(i);
if(file->getFilenameNoExt() == fileNameNoExt)
{
int msgCount = file->messageHandler->getCount();
for(int f = 0; f < msgCount; f++)
{
msg = file->messageHandler->findMsgByIdx(f);
if (msg && msg->name == msgName && msg->sender->name == nodeName)
return msg; //if it's not null and the node name matches return it
}
}
}
return nullptr; //no match, tough luck, return null
}
DBC_MESSAGE* DBCHandler::findMessage(const QString msgName, const QString fullyQualifiedNodeName)
{
QStringList nodeNameParts = fullyQualifiedNodeName.split(Utility::fullyQualifiedNameSeperator);
if(nodeNameParts.count() != 2)
{
qDebug() << "Error parsing fully qualified node name for message search";
return nullptr;
}
QString fileNameNoExt = nodeNameParts[0];
QString nodeName = nodeNameParts[1];
DBC_MESSAGE *msg = nullptr;
msg = findMessage(msgName, nodeName, fileNameNoExt);
return msg;
}
int DBCHandler::getFileCount()
{
return loadedFiles.count();
}
DBCFile* DBCHandler::getFileByIdx(int idx)
{
if (loadedFiles.count() == 0) return nullptr;
if (idx < 0) return nullptr;
if (idx >= loadedFiles.count()) return nullptr;
return &loadedFiles[idx];
}
DBCFile* DBCHandler::getFileByName(QString name)
{
if (loadedFiles.count() == 0) return nullptr;
for (int i = 0; i < loadedFiles.count(); i++)
{
if (loadedFiles[i].getFilename().compare(name, Qt::CaseInsensitive) == 0)
{
return &loadedFiles[i];
}
}
return nullptr;
}
DBCHandler::DBCHandler()
{
// Load previously saved DBC file settings
QSettings settings;
qDebug() <<"Settings file: " << settings.fileName();
int filecount = settings.value("DBC/FileCount", 0).toInt();
qDebug() << "Previously loaded DBC file count: " << filecount;
for (int i=0; i<filecount; i++)
{
QString filename = settings.value("DBC/Filename_" + QString::number(i),"").toString();
DBCFile * file = loadDBCFile(filename);
if (file)
{
int bus = settings.value("DBC/AssocBus_" + QString::number(i),0).toInt();
file->setAssocBus(bus);
MatchingCriteria_t matchingCriteria = (MatchingCriteria_t)settings.value("DBC/MatchingCriteria_" + QString::number(i),0).toInt();
DBC_ATTRIBUTE attr;
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = matchingCriteria;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "matchingcriteria";
attr.valType = ATTR_INT;
// file->dbc_attributes.append(attr);
// file->messageHandler->setMatchingCriteria(matchingCriteria);
int filterLabeling = settings.value("DBC/FilterLabeling_" + QString::number(i),0).toInt();
attr.attrType = ATTR_TYPE_MESSAGE;
attr.defaultValue = filterLabeling;
attr.enumVals.clear();
attr.lower = 0;
attr.upper = 0;
attr.name = "filterlabeling";
attr.valType = ATTR_INT;
// file->dbc_attributes.append(attr);
// file->messageHandler->setFilterLabeling(filterLabeling);
qInfo() << "Loaded DBC file" << filename << " (bus:" << bus
<< ", Matching Criteria:" << (int)matchingCriteria << "Filter labeling: " << (filterLabeling?"enabled":"disabled") << ")";
}
}
}
DBCHandler* DBCHandler::getReference()
{
if (!instance) instance = new DBCHandler();
return instance;
}
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