///<summary>Transformes value of the PropertyItem.Value byte array to apropriate .NET Framework type.</summary>
/// <param name="aPropertyItem"></param>
public static Object getValue(PropertyItem aPropertyItem)
{
if (aPropertyItem==null) return null;
switch ((PropertyTagType)aPropertyItem.Type) {
case PropertyTagType.Byte:
if (aPropertyItem.Value.Length == 1) return aPropertyItem.Value[0];
return aPropertyItem.Value;
case PropertyTagType.ASCII:
return _encoding.GetString( aPropertyItem.Value, 0, aPropertyItem.Len - 1);
case PropertyTagType.Short:
ushort[] _resultUShort = new ushort[aPropertyItem.Len / (16 / 8) ];
for (int i=0; i<_resultUShort.Length ; i++)
_resultUShort[i]=BitConverter.ToUInt16(aPropertyItem.Value,i*(16 / 8));
if (_resultUShort.Length==1) return _resultUShort[0];
return (_resultUShort);
case PropertyTagType.Long :
uint [] _resultUInt32 = new uint[aPropertyItem.Len / (32 / 8)];
for (int i=0; i<_resultUInt32.Length; i++)
_resultUInt32[i]= BitConverter.ToUInt32(aPropertyItem.Value, i*(32 / 8));
if (_resultUInt32.Length==1) return _resultUInt32[0];
return _resultUInt32;
case PropertyTagType.Rational :
Fraction[] _resultRational = new Fraction[aPropertyItem.Len / (64 / 8)];
uint uNominator;
uint uDenominator;
for (int i=0; i<_resultRational.Length; i++)
{
uNominator=1;
uNominator = BitConverter.ToUInt32(aPropertyItem.Value, i*(64 / 8) );
uDenominator = BitConverter.ToUInt32(aPropertyItem.Value, (i*(64 / 8)) + (32/8));
_resultRational[i]= new Fraction(uNominator, uDenominator);
if (_resultRational[i]==null) MessageBox.Show("Null");
}
if (_resultRational.Length==1) return _resultRational[0];
return _resultRational;
case PropertyTagType.Undefined:
if (aPropertyItem.Value.Length == 1) return aPropertyItem.Value[0];
return aPropertyItem.Value;
case PropertyTagType.SLONG:
int [] _resultInt32 = new int[aPropertyItem.Len / (32 / 8)];
for (int i=0; i<_resultInt32.Length; i++)
_resultInt32[i]= BitConverter.ToInt32(aPropertyItem.Value, i*(32/8));
if (_resultInt32.Length==1) return _resultInt32[0];
return _resultInt32;
case PropertyTagType.SRational:
Fraction[] _resultSRational = new Fraction[aPropertyItem.Len / (64 / 8)];
int sNominator;
int sDenominator;
for (int i=0; i<_resultSRational.Length; i++)
{
sNominator = BitConverter.ToInt32(aPropertyItem.Value, i*(64/8));
sDenominator = BitConverter.ToInt32(aPropertyItem.Value, i*(64/8)+(32/8));
_resultSRational[i]= new Fraction(sNominator, sDenominator);
}
if (_resultSRational.Length==1) return _resultSRational[0];
return _resultSRational;
default:
if (aPropertyItem.Value.Length == 1) return aPropertyItem.Value[0];
return aPropertyItem.Value;
}
}
///<summary>Transformes value of the PropertyItem.Value byte array to apropriate .NET Framework type.</summary>
/// <param name="aPropertyItem"></param>
public static Object getValue(PropertyItem aPropertyItem)
{
if (aPropertyItem == null)
{
return(null);
}
switch ((PropertyTagType)aPropertyItem.Type)
{
case PropertyTagType.Byte:
if (aPropertyItem.Value.Length == 1)
{
return(aPropertyItem.Value[0]);
}
return(aPropertyItem.Value);
case PropertyTagType.ASCII:
return(_encoding.GetString(aPropertyItem.Value, 0, aPropertyItem.Len - 1));
case PropertyTagType.Short:
ushort[] _resultUShort = new ushort[aPropertyItem.Len / (16 / 8)];
for (int i = 0; i < _resultUShort.Length; i++)
{
_resultUShort[i] = BitConverter.ToUInt16(aPropertyItem.Value, i * (16 / 8));
}
if (_resultUShort.Length == 1)
{
return(_resultUShort[0]);
}
return(_resultUShort);
case PropertyTagType.Long:
uint [] _resultUInt32 = new uint[aPropertyItem.Len / (32 / 8)];
for (int i = 0; i < _resultUInt32.Length; i++)
{
_resultUInt32[i] = BitConverter.ToUInt32(aPropertyItem.Value, i * (32 / 8));
}
if (_resultUInt32.Length == 1)
{
return(_resultUInt32[0]);
}
return(_resultUInt32);
case PropertyTagType.Rational:
Fraction[] _resultRational = new Fraction[aPropertyItem.Len / (64 / 8)];
uint uNominator;
uint uDenominator;
for (int i = 0; i < _resultRational.Length; i++)
{
//uNominator=1;
uNominator = BitConverter.ToUInt32(aPropertyItem.Value, i * (64 / 8));
uDenominator = BitConverter.ToUInt32(aPropertyItem.Value, (i * (64 / 8)) + (32 / 8));
if (uNominator > 0x7FFFFFFF || uDenominator > 0x7FFFFFFF)
{
// divide both numerator/denominator by 2 if they're too big.
uNominator >>= 1;
uDenominator >>= 1;
}
_resultRational[i] = new Fraction(uNominator, uDenominator);
}
if (_resultRational.Length == 1)
{
return(_resultRational[0]);
}
return(_resultRational);
case PropertyTagType.Undefined:
if (aPropertyItem.Value.Length == 1)
{
return(aPropertyItem.Value[0]);
}
return(aPropertyItem.Value);
case PropertyTagType.SLONG:
int [] _resultInt32 = new int[aPropertyItem.Len / (32 / 8)];
for (int i = 0; i < _resultInt32.Length; i++)
{
_resultInt32[i] = BitConverter.ToInt32(aPropertyItem.Value, i * (32 / 8));
}
if (_resultInt32.Length == 1)
{
return(_resultInt32[0]);
}
return(_resultInt32);
case PropertyTagType.SRational:
Fraction[] _resultSRational = new Fraction[aPropertyItem.Len / (64 / 8)];
int sNominator;
int sDenominator;
for (int i = 0; i < _resultSRational.Length; i++)
{
sNominator = BitConverter.ToInt32(aPropertyItem.Value, i * (64 / 8));
sDenominator = BitConverter.ToInt32(aPropertyItem.Value, i * (64 / 8) + (32 / 8));
_resultSRational[i] = new Fraction(sNominator, sDenominator);
}
if (_resultSRational.Length == 1)
{
return(_resultSRational[0]);
}
return(_resultSRational);
default:
if (aPropertyItem.Value.Length == 1)
{
return(aPropertyItem.Value[0]);
}
return(aPropertyItem.Value);
}
}
