Revision control
++ // Copyright (C) 2021 Evgeny Shtanov <shtanov_evgenii@mail.ru>
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "receivedframesmodel.h"
++
++ #include <QSize>
++
++ #include <iterator>
++
++ constexpr int ColumnAlignment[] = {
++ Qt::AlignRight | Qt::AlignVCenter,
++ Qt::AlignRight | Qt::AlignVCenter,
++ Qt::AlignCenter,
++ Qt::AlignRight | Qt::AlignVCenter,
++ Qt::AlignRight | Qt::AlignVCenter,
++ Qt::AlignLeft | Qt::AlignVCenter
++ };
++
++ ReceivedFramesModel::ReceivedFramesModel(QObject *parent) : QAbstractTableModel(parent)
++ {
++ }
++
++ bool ReceivedFramesModel::removeRows(int row, int count, const QModelIndex &parent)
++ {
++ beginRemoveRows(parent, row, row + count - 1);
++
++ QList<QStringList>::iterator i_start = m_framesQueue.begin() + row;
++ QList<QStringList>::iterator i_end = i_start + count;
++ m_framesQueue.erase(i_start, i_end);
++
++ endRemoveRows();
++
++ return true;
++ }
++
++ QVariant ReceivedFramesModel::headerData(int section, Qt::Orientation orientation, int role) const
++ {
++ if ((role == Qt::DisplayRole) && (orientation == Qt::Horizontal)) {
++ switch (section) {
++ case Number:
++ return tr("#");
++ case Timestamp:
++ return tr("Timestamp");
++ case Flags:
++ return tr("Flags");
++ case CanID:
++ return tr("Frame ID");
++ case DLC:
++ return tr("DLC");
++ case Data:
++ return tr("Payload");
++ }
++ }
++
++ if ((role == Qt::SizeHintRole) && (orientation == Qt::Horizontal)) {
++ switch (section) {
++ case Number:
++ return QSize(80, 25);
++ case Timestamp:
++ return QSize(130, 25);
++ case Flags:
++ return QSize(50, 25);
++ case CanID:
++ return QSize(75, 25);
++ case DLC:
++ return QSize(30, 25);
++ case Data:
++ return QSize(200, 25);
++ }
++ }
++
++ return {};
++ }
++
++ QVariant ReceivedFramesModel::data(const QModelIndex &index, int role) const
++ {
++ if (m_framesQueue.empty())
++ return {};
++
++ const int row = index.row();
++ const int column = index.column();
++
++ switch (role) {
++ case Qt::TextAlignmentRole:
++ return ColumnAlignment[index.column()];
++ case Qt::DisplayRole:
++ return m_framesQueue.at(row).at(column);
++ case ClipboardTextRole:
++ if (index.column() == DLC)
++ return QString("[%1]").arg(m_framesQueue.at(row).at(column));
++ else
++ return m_framesQueue.at(row).at(column);
++ default:
++ return {};
++ }
++ }
++
++ int ReceivedFramesModel::rowCount(const QModelIndex &parent) const
++ {
++ return parent.isValid() ? 0 : m_framesQueue.size();
++ }
++
++ int ReceivedFramesModel::columnCount(const QModelIndex &parent) const
++ {
++ return parent.isValid() ? 0 : Count;
++ }
++
++ void ReceivedFramesModel::appendFrames(const QList<QStringList> &slvector)
++ {
++ m_framesAccumulator.append(slvector);
++ }
++
++ bool ReceivedFramesModel::needUpdate() const
++ {
++ return !m_framesAccumulator.empty();
++ }
++
++ void ReceivedFramesModel::update()
++ {
++ if (m_framesAccumulator.empty())
++ return;
++
++ if (m_queueLimit)
++ appendFramesRingBuffer(m_framesAccumulator);
++ else
++ appendFramesUnlimited(m_framesAccumulator);
++
++ m_framesAccumulator.clear();
++ }
++
++ void ReceivedFramesModel::appendFramesRingBuffer(const QList<QStringList> &slvector)
++ {
++ if (m_queueLimit <= (rowCount() + slvector.size())) {
++ if (slvector.size() < m_queueLimit)
++ removeRows(0, rowCount() + slvector.size() - m_queueLimit + 1);
++ else
++ clear();
++ }
++
++ beginInsertRows(QModelIndex(), rowCount(), rowCount() + slvector.size() - 1);
++
++ if (slvector.size() < m_queueLimit)
++ m_framesQueue.append(slvector);
++ else
++ m_framesQueue.append(slvector.mid(slvector.size() - m_queueLimit));
++
++ endInsertRows();
++ }
++
++ void ReceivedFramesModel::appendFrame(const QStringList &slist)
++ {
++ appendFrames({slist});
++ }
++
++ void ReceivedFramesModel::appendFramesUnlimited(const QList<QStringList> &slvector)
++ {
++ beginInsertRows(QModelIndex(), rowCount(), rowCount() + slvector.size() - 1);
++
++ m_framesQueue.append(slvector);
++
++ endInsertRows();
++ }
++
++ void ReceivedFramesModel::clear()
++ {
++ if (m_framesQueue.count()) {
++ beginResetModel();
++
++ m_framesQueue.clear();
++
++ endResetModel();
++ }
++ }
++
++ void ReceivedFramesModel::setQueueLimit(int limit)
++ {
++ m_queueLimit = limit;
++
++ if (limit && m_framesQueue.size() > limit)
++ removeRows(0, m_framesQueue.size() - limit);
++ }