Method interactive_keypress

qrenderdoc/Windows/PythonShell.cpp:1385–1493

}

void PythonShell::interactive_keypress(QKeyEvent *event)
{
  if(event->key() == Qt::Key_Tab)
  {
    QString base = ui->lineInput->text();
    if(!base.isEmpty() && !base.rbegin()->isSpace())
    {
      // search backwards from the end for the first non dotted identifier first, and extract that
      // substring. This is just ASCII, not unicode
      for(int i = base.count() - 1; i >= 0; i--)
      {
        if(!base[i].isLetterOrNumber() && base[i] != QLatin1Char('.') && base[i] != QLatin1Char('_'))
        {
          base = base.right(base.count() - 1 - i);
          break;
        }
      }

      // skip any initial digits that got included in the coarse search above
      while(!base.isEmpty() && base[0].isDigit())
        base.remove(0, 1);

      QStringList options = interactiveContext->completionOptions(base);

      QString line = ui->lineInput->text();

      if(!options.isEmpty())
      {
        QString commonSubstring = options[0];

        for(int i = 1; i < options.count(); i++)
        {
          const QString &opt = options[i];
          if(opt.count() < commonSubstring.count())
            commonSubstring.truncate(opt.count());

          for(int j = 0; j < commonSubstring.count(); j++)
          {
            if(commonSubstring[j] != opt[j])
            {
              commonSubstring.truncate(j);
              break;
            }
          }
        }

        if(commonSubstring.length() > base.length())
        {
          line.chop(base.length());
          line += commonSubstring;
          ui->lineInput->setText(line);
        }

        if(options.count() > 1)
        {
          QString text;
          text += line;
          text += lit("\n");