openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#include "tools/cabana/historylog.h"
#include <QHeaderView>
#include <QVBoxLayout>
QVariant HistoryLogModel::data(const QModelIndex &index, int role) const {
if (role == Qt::DisplayRole) {
const auto &can_msgs = can->messages(msg_id);
if (index.row() < can_msgs.size()) {
const auto &can_data = can_msgs[index.row()];
auto msg = dbc()->msg(msg_id);
if (msg && index.column() < msg->sigs.size()) {
return get_raw_value((uint8_t *)can_data.dat.begin(), can_data.dat.size(), msg->sigs[index.column()]);
} else {
return toHex(can_data.dat);
}
}
}
return {};
}
void HistoryLogModel::setMessage(const QString &message_id) {
beginResetModel();
msg_id = message_id;
const auto msg = dbc()->msg(message_id);
column_count = msg && !msg->sigs.empty() ? msg->sigs.size() : 1;
row_count = 0;
endResetModel();
updateState();
}
QVariant HistoryLogModel::headerData(int section, Qt::Orientation orientation, int role) const {
if (orientation == Qt::Horizontal) {
auto msg = dbc()->msg(msg_id);
if (msg && section < msg->sigs.size()) {
if (role == Qt::BackgroundRole) {
return QBrush(QColor(getColor(section)));
} else if (role == Qt::DisplayRole || role == Qt::ToolTipRole) {
return QString::fromStdString(msg->sigs[section].name);
}
}
} else if (role == Qt::DisplayRole) {
const auto &can_msgs = can->messages(msg_id);
if (section < can_msgs.size()) {
return QString::number(can_msgs[section].ts, 'f', 2);
}
}
return {};
}
void HistoryLogModel::updateState() {
if (msg_id.isEmpty()) return;
const auto &can_msgs = can->messages(msg_id);
int prev_row_count = row_count;
row_count = can_msgs.size();
int delta = row_count - prev_row_count;
if (delta > 0) {
beginInsertRows({}, prev_row_count, row_count - 1);
endInsertRows();
} else if (delta < 0) {
beginRemoveRows({}, row_count, prev_row_count - 1);
endRemoveRows();
}
if (row_count > 0) {
emit dataChanged(index(0, 0), index(row_count - 1, column_count - 1));
emit headerDataChanged(Qt::Vertical, 0, row_count - 1);
}
}
HistoryLog::HistoryLog(QWidget *parent) : QWidget(parent) {
QVBoxLayout *main_layout = new QVBoxLayout(this);
main_layout->setContentsMargins(0, 0, 0, 0);
model = new HistoryLogModel(this);
table = new QTableView(this);
table->setModel(model);
table->horizontalHeader()->setStretchLastSection(true);
table->setEditTriggers(QAbstractItemView::NoEditTriggers);
table->setStyleSheet("QTableView::item { border:0px; padding-left:5px; padding-right:5px; }");
table->verticalHeader()->setStyleSheet("QHeaderView::section {padding-left: 5px; padding-right: 5px;min-width:40px;}");
main_layout->addWidget(table);
}
void HistoryLog::setMessage(const QString &message_id) {
model->setMessage(message_id);
}
void HistoryLog::updateState() {
model->updateState();
}