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 <QFontDatabase>
#include <QPainter>
// HistoryLogModel
QVariant HistoryLogModel::data(const QModelIndex &index, int role) const {
if (role == Qt::DisplayRole) {
const auto &m = messages[index.row()];
if (index.column() == 0) {
return QString::number(m.ts, 'f', 2);
}
return !sigs.empty() ? QString::number(get_raw_value((uint8_t *)m.dat.data(), m.dat.size(), *sigs[index.column() - 1]))
: toHex(m.dat);
} else if (role == Qt::FontRole && index.column() == 1 && sigs.empty()) {
return QFontDatabase::systemFont(QFontDatabase::FixedFont);
}
return {};
}
void HistoryLogModel::setMessage(const QString &message_id) {
beginResetModel();
msg_id = message_id;
sigs.clear();
messages.clear();
if (auto dbc_msg = dbc()->msg(message_id)) {
sigs = dbc_msg->getSignals();
}
endResetModel();
updateState();
}
QVariant HistoryLogModel::headerData(int section, Qt::Orientation orientation, int role) const {
if (orientation == Qt::Horizontal) {
if (role == Qt::DisplayRole || role == Qt::ToolTipRole) {
if (section == 0) {
return "Time";
}
return !sigs.empty() ? QString::fromStdString(sigs[section - 1]->name).replace('_', ' ') : "Data";
} else if (role == Qt::BackgroundRole && section > 0 && !sigs.empty()) {
return QBrush(QColor(getColor(section - 1)));
} else if (role == Qt::ForegroundRole && section > 0 && !sigs.empty()) {
return QBrush(Qt::black);
}
}
return {};
}
void HistoryLogModel::updateState() {
int prev_row_count = messages.size();
if (!msg_id.isEmpty()) {
messages = can->messages(msg_id);
}
int delta = messages.size() - prev_row_count;
if (delta > 0) {
beginInsertRows({}, prev_row_count, messages.size() - 1);
endInsertRows();
} else if (delta < 0) {
beginRemoveRows({}, messages.size(), prev_row_count - 1);
endRemoveRows();
}
if (!messages.empty()) {
emit dataChanged(index(0, 0), index(rowCount() - 1, columnCount() - 1), {Qt::DisplayRole});
}
}
// HeaderView
QSize HeaderView::sectionSizeFromContents(int logicalIndex) const {
int default_size = qMax(100, rect().width() / model()->columnCount());
const QString text = model()->headerData(logicalIndex, this->orientation(), Qt::DisplayRole).toString();
const QRect rect = fontMetrics().boundingRect({0, 0, default_size, 2000}, defaultAlignment(), text);
QSize size = rect.size() + QSize{10, 6};
return {qMax(size.width(), default_size), size.height()};
}
void HeaderView::paintSection(QPainter *painter, const QRect &rect, int logicalIndex) const {
auto bg_role = model()->headerData(logicalIndex, Qt::Horizontal, Qt::BackgroundRole);
if (bg_role.isValid()) {
QPen pen(model()->headerData(logicalIndex, Qt::Horizontal, Qt::ForegroundRole).value<QBrush>(), 1);
painter->setPen(pen);
painter->fillRect(rect, bg_role.value<QBrush>());
}
QString text = model()->headerData(logicalIndex, Qt::Horizontal, Qt::DisplayRole).toString();
painter->drawText(rect.adjusted(5, 3, -5, -3), defaultAlignment(), text);
}
// HistoryLog
HistoryLog::HistoryLog(QWidget *parent) : QTableView(parent) {
model = new HistoryLogModel(this);
setModel(model);
setHorizontalHeader(new HeaderView(Qt::Horizontal, this));
horizontalHeader()->setDefaultAlignment(Qt::AlignLeft | (Qt::Alignment)Qt::TextWordWrap);
horizontalHeader()->setSectionResizeMode(QHeaderView::ResizeToContents);
verticalHeader()->setVisible(false);
setFrameShape(QFrame::NoFrame);
setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Expanding);
}
int HistoryLog::sizeHintForColumn(int column) const {
return -1;
}