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#include "seriesmodel.h"
// cpp
// tbb
#ifdef __linux__
#ifndef Q_MOC_RUN
#if defined(emit)
#undef emit
#include <execution>
#define emit // restore the macro definition of "emit", as it was defined in
// gtmetamacros.h
#else
#include <execution>
#endif // defined(emit)
#endif // Q_MOC_RUN
#endif
SeriesModel::SeriesModel(QObject* parent)
: QAbstractTableModel(parent)
{
}
SeriesModel::SeriesModel(const SeriesModel& other)
: QAbstractTableModel()
{
append(other.m_points);
}
int SeriesModel::rowCount(const QModelIndex& parent) const
{
Q_UNUSED(parent);
return m_points.count();
}
int SeriesModel::columnCount(const QModelIndex& parent) const
{
Q_UNUSED(parent);
return 2;
}
QVariant SeriesModel::data(const QModelIndex& modelIndex, int role) const
{
if (!modelIndex.isValid())
return QVariant();
if (modelIndex.row() < 0 || modelIndex.row() >= m_points.count())
return QVariant();
if (role == Qt::DisplayRole)
{
if (modelIndex.column() == 0)
return m_points.at(modelIndex.row()).x();
else if (modelIndex.column() == 1)
return m_points.at(modelIndex.row()).y();
}
return QVariant();
}
void SeriesModel::append(const QVector<QVector2D> points)
{
QMutexLocker l(&m_mtx);
beginInsertRows(
QModelIndex(),
m_points.count(),
m_points.count() + points.count() - 1
);
m_points << points;
endInsertRows();
recalcLimits();
}
void SeriesModel::clear()
{
QMutexLocker l(&m_mtx);
if (m_points.isEmpty())
return;
beginRemoveRows(QModelIndex(), 0, m_points.count() - 1);
m_points.clear();
endRemoveRows();
}
void SeriesModel::recalcLimits()
{
// WARNING: not thread safe
m_minX = std::numeric_limits<float>::max();
m_maxX = std::numeric_limits<float>::min();
m_minY = std::numeric_limits<float>::max();
m_maxY = std::numeric_limits<float>::min();
#ifdef __linux__
const auto [minX, maxX] = std::minmax_element(
std::execution::par_unseq,
m_points.constBegin(),
m_points.constEnd(),
[](const auto& a, const auto& b) { return a.x() < b.x(); }
);
const auto [minY, maxY] = std::minmax_element(
std::execution::par_unseq,
m_points.constBegin(),
m_points.constEnd(),
[](const auto& a, const auto& b) { return a.y() < b.y(); }
);
float min = std::min(minX->x(), minY->y());
float max = std::max(maxX->x(), maxY->y());
#else
for (const auto& p : m_points)
{
if (p.x() < m_minX)
m_minX = p.x();
if (p.x() > m_maxX)
m_maxX = p.x();
if (p.y() < m_minY)
m_minY = p.y();
if (p.y() > m_maxY)
m_maxY = p.y();
}
float min = std::min(m_minX, m_minY);
float max = std::max(m_maxX, m_maxY);
#endif
m_minX = min;
m_maxX = max;
m_minY = min;
m_maxY = max;
emit minXChanged();
emit maxXChanged();
emit minYChanged();
emit maxYChanged();
}
void SeriesModel::replace(const QVector<QVector2D> points)
{
clear();
append(points);
}
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