Method readFromFile

Qt/Python/pqPythonFileIO.cxx:89–132

-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
bool pqPythonFileIO::PythonFile::readFromFile(QString& str) const
{
  if (this->Name.isEmpty())
  {
    QMessageBox::warning(pqCoreUtilities::mainWidget(),
      QCoreApplication::translate("pqPythonFileIO", "Error"),
      QCoreApplication::translate("pqPythonFileIO", "No Filename Given!"));
    return false;
  }

  const QString swapFilename = ::GetSwapFilename(this->Name);
  if (QFileInfo::exists(swapFilename))
  {
    const auto userAnswer = pqCoreUtilities::promptUserGeneric(tr("Script Editor"),
      tr("Paraview found an old automatic save file %1. Would you like to recover its content?"),
      QMessageBox::Warning, QMessageBox::Yes | QMessageBox::Discard | QMessageBox::Cancel, nullptr);
    switch (userAnswer)
    {
      case QMessageBox::Yes:
      {
        const auto contents = ::Read(swapFilename, vtkPVSession::CLIENT);
        ::Write(this->Name, this->Location, contents);
        QFile::remove(swapFilename);
        break;
      }
      case QMessageBox::Discard:
        QFile::remove(swapFilename);
        break;

      case QMessageBox::Cancel:
      default:
        return false;
    }
  }

  {
    pqScopedOverrideCursor scopedWaitCursor(Qt::WaitCursor);
    str = ::Read(this->Name, this->Location);
  }

  pqPythonScriptEditor::bringFront();

  return true;
}

//-----------------------------------------------------------------------------
void pqPythonFileIO::PythonFile::start()