Function interpretVariant

qrenderdoc/Windows/BufferViewer.cpp:809–903

static int columnGroupRole = Qt::UserRole + 10000;

static QString interpretVariant(const QVariant &v, const ShaderConstant &el,
                                const BufferElementProperties &prop)
{
  QString ret;

  QMetaType::Type vt = GetVariantMetatype(v);

  if(vt == QMetaType::Double)
  {
    double d = v.toDouble();
    // pad with space on left if sign is missing, to better align
    if(d < 0.0)
      ret = Formatter::Format(d);
    else if(d > 0.0)
      ret = lit(" ") + Formatter::Format(d);
    else if(qIsNaN(d))
      ret = lit(" NaN");
    else
      // force negative and positive 0 together
      ret = lit(" ") + Formatter::Format(0.0);
  }
  else if(vt == QMetaType::Float)
  {
    float f = v.toFloat();
    // pad with space on left if sign is missing, to better align
    if(f < 0.0)
      ret = Formatter::Format(f);
    else if(f > 0.0)
      ret = lit(" ") + Formatter::Format(f);
    else if(qIsNaN(f))
      ret = lit(" NaN");
    else
      // force negative and positive 0 together
      ret = lit(" ") + Formatter::Format(0.0);
  }
  else if(vt == QMetaType::UInt || vt == QMetaType::UShort || vt == QMetaType::UChar)
  {
    uint32_t u = v.toUInt();

    if(prop.floatCastWrong)
    {
      float f = (float)u;
      memcpy(&u, &f, sizeof(f));
    }

    const bool hexDisplay = bool(el.type.flags & ShaderVariableFlags::HexDisplay);
    const bool binDisplay = bool(el.type.flags & ShaderVariableFlags::BinaryDisplay);

    if(hexDisplay && prop.format.type == ResourceFormatType::Regular)
      ret = Formatter::HexFormat(u, prop.format.compByteWidth);
    else if(binDisplay && prop.format.type == ResourceFormatType::Regular)
      ret = Formatter::BinFormat(u, prop.format.compByteWidth);
    else
      ret = Formatter::Format(u, hexDisplay);
  }
  else if(vt == QMetaType::Int || vt == QMetaType::Short || vt == QMetaType::SChar)
  {
    int32_t i = v.toInt();