WSJT-X/TransceiverBase.cpp

#include "TransceiverBase.hpp"

#include <exception>

#include <QString>

#include "pimpl_impl.hpp"

namespace
{
  auto const unexpected = TransceiverBase::tr ("Unexpected rig error");
}

class TransceiverBase::impl final
  : public QObject
{
  Q_OBJECT;

public:
  impl (TransceiverBase * parent)
    : parent_ {parent}
  {
    connect (this, &TransceiverBase::impl::updated, this, &TransceiverBase::impl::update_complete, Qt::QueuedConnection);
  }

  impl (impl const&) = delete;
  impl& operator = (impl const&) = delete;

  Q_SIGNAL void updated ();
  Q_SLOT void update_complete ()
  {
    if (parent_->do_pre_update ())
      {
        Q_EMIT parent_->update (state_);
      }
  }

  TransceiverBase * parent_;
  TransceiverState state_;
};


#include "TransceiverBase.moc"

TransceiverBase::TransceiverBase ()
  : m_ {this}
{
}

TransceiverBase::~TransceiverBase ()
{
}

void TransceiverBase::start () noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          m_->state_.online (false);

          // ensure PTT isn't left set
          do_ptt (false);
          do_post_ptt (false);

          do_stop ();
          do_post_stop ();
        }
      do_start ();
      do_post_start ();
      m_->state_.online (true);
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::stop () noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          m_->state_.online (false);

          // ensure PTT isn't left set
          do_ptt (false);
          do_post_ptt (false);
        }

      do_stop ();
      do_post_stop ();
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
  else
    {
      Q_EMIT finished ();
    }
}

void TransceiverBase::frequency (Frequency f, MODE m) noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          do_frequency (f, m);
          do_post_frequency (f, m);
        }
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::tx_frequency (Frequency tx, bool rationalise_mode) noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          do_tx_frequency (tx, rationalise_mode);
          do_post_tx_frequency (tx, rationalise_mode);
        }
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::mode (MODE m, bool rationalise) noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          do_mode (m, rationalise);
          do_post_mode (m, rationalise);
        }
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::ptt (bool on) noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          do_ptt (on);
          do_post_ptt (on);
        }
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::sync (bool force_signal) noexcept
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          do_sync (force_signal);
        }
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  if (!message.isEmpty ())
    {
      offline (message);
    }
}

void TransceiverBase::update_rx_frequency (Frequency rx)
{
  m_->state_.frequency (rx);
}

void TransceiverBase::update_other_frequency (Frequency tx)
{
  m_->state_.tx_frequency (tx);
}

void TransceiverBase::update_split (bool state)
{
  m_->state_.split (state);
}

void TransceiverBase::update_mode (MODE m)
{
  m_->state_.mode (m);
}

void TransceiverBase::update_PTT (bool state)
{
  auto prior = m_->state_.ptt ();
  m_->state_.ptt (state);
  if (state != prior)
    {
      // always signal PTT changes because some MainWindow logic
      // depends on it
      update_complete ();
    }
}

void TransceiverBase::update_complete ()
{
  // Use a signal to ensure that the calling function completes before
  // the Transceiver::update signal is triggered.
  Q_EMIT m_->updated ();
}

void TransceiverBase::offline (QString const& reason)
{
  QString message;
  try
    {
      if (m_->state_.online ())
        {
          m_->state_.online (false);

          // ensure PTT isn't left set
          do_ptt (false);
          do_post_ptt (false);
        }
      do_stop ();
      do_post_stop ();
    }
  catch (std::exception const& e)
    {
      message = e.what ();
    }
  catch (...)
    {
      message = unexpected;
    }
  Q_EMIT failure (reason + '\n' + message);
}

auto TransceiverBase::state () const -> TransceiverState const&
{
  return m_->state_;
}