//-----------------------------------------------------------------------------------------
public CssLength(float num, CssUnitOrNames unit)
{
this._number = num;
this._flags = (int)unit | IS_ASSIGN;
switch (unit)
{
case CssUnitOrNames.Ems:
this._flags |= IS_RELATIVE;
break;
case CssUnitOrNames.Pixels:
case CssUnitOrNames.Ex:
case CssUnitOrNames.EmptyValue:
this._flags |= IS_RELATIVE;
break;
case CssUnitOrNames.Unknown:
this._flags |= HAS_ERROR;
return;
default:
break;
}
}
//-----------------------------------------------------------------------------------------
public CssLength(float num, CssUnitOrNames unit)
{
this._number = num;
this._flags = (int)unit | IS_ASSIGN;
switch (unit)
{
case CssUnitOrNames.Pixels:
case CssUnitOrNames.Ems:
case CssUnitOrNames.Ex:
case CssUnitOrNames.EmptyValue:
this._flags |= IS_RELATIVE;
break;
case CssUnitOrNames.Unknown:
this._flags |= HAS_ERROR;
return;
default:
break;
}
}
public static CssLength ParseGenericLength(string lenValue)
{
float parsedNumber = 0f;
switch (lenValue)
{
case null:
case "":
case "0":
//Return zero if no length specified, zero specified
return(CssLength.ZeroNoUnit);
case "auto":
return(CssLength.AutoLength);
case "normal":
return(CssLength.NormalWordOrLine);
}
//then parse
//If percentage, use ParseNumber
if (lenValue.EndsWith("%"))
{
parsedNumber = float.Parse(lenValue.Substring(0, lenValue.Length - 1));
return(new CssLength(parsedNumber, CssUnitOrNames.Percent));
}
//If no units, has error
if (lenValue.Length < 3)
{
if (float.TryParse(lenValue, out parsedNumber))
{
return(new CssLength(parsedNumber, CssUnitOrNames.Pixels));
}
else
{
return(new CssLength(parsedNumber, CssUnitOrNames.Unknown));
}
}
//Get units of the length
//TODO: Units behave different in paper and in screen!
CssUnitOrNames unit = GetCssUnit(lenValue.Substring(lenValue.Length - 2, 2));
//parse number part
if (unit == CssUnitOrNames.Unknown)
{
//check if all char is number?
if (!float.TryParse(lenValue,
System.Globalization.NumberStyles.Number,
System.Globalization.NumberFormatInfo.InvariantInfo, out parsedNumber))
{
//make an error value
return(new CssLength(0, CssUnitOrNames.Unknown));
}
else
{
return(new CssLength(parsedNumber, CssUnitOrNames.Pixels));
}
}
else
{
string number_part = lenValue.Substring(0, lenValue.Length - 2);
if (!float.TryParse(number_part,
System.Globalization.NumberStyles.Number,
System.Globalization.NumberFormatInfo.InvariantInfo, out parsedNumber))
{
//make an error value
return(new CssLength(0, CssUnitOrNames.Unknown));
}
else
{
return(new CssLength(parsedNumber, unit));
}
}
}
