float SVGLengthContext::convertValueFromUserUnits(float value, SVGLengthMode mode, SVGLengthType toUnit, ExceptionCode& ec) const
{
switch (toUnit) {
case LengthTypeUnknown:
ec = NOT_SUPPORTED_ERR;
return 0;
case LengthTypeNumber:
return value;
case LengthTypePercentage:
return convertValueFromUserUnitsToPercentage(value * 100, mode, ec);
case LengthTypeEMS:
return convertValueFromUserUnitsToEMS(value, ec);
case LengthTypeEXS:
return convertValueFromUserUnitsToEXS(value, ec);
case LengthTypePX:
return value;
case LengthTypeCM:
return value * 2.54f / cssPixelsPerInch;
case LengthTypeMM:
return value * 25.4f / cssPixelsPerInch;
case LengthTypeIN:
return value / cssPixelsPerInch;
case LengthTypePT:
return value * 72 / cssPixelsPerInch;
case LengthTypePC:
return value * 6 / cssPixelsPerInch;
}
ASSERT_NOT_REACHED();
return 0;
}
float SVGLengthContext::convertValueFromUserUnits(float value, SVGLengthMode mode, SVGLengthType toUnit, ExceptionState& es) const
{
switch (toUnit) {
case LengthTypeUnknown:
es.throwDOMException(NotSupportedError);
return 0;
case LengthTypeNumber:
return value;
case LengthTypePercentage:
return convertValueFromUserUnitsToPercentage(value * 100, mode, es);
case LengthTypeEMS:
return convertValueFromUserUnitsToEMS(value, es);
case LengthTypeEXS:
return convertValueFromUserUnitsToEXS(value, es);
case LengthTypePX:
return value;
case LengthTypeCM:
return value * 2.54f / cssPixelsPerInch;
case LengthTypeMM:
return value * 25.4f / cssPixelsPerInch;
case LengthTypeIN:
return value / cssPixelsPerInch;
case LengthTypePT:
return value * 72 / cssPixelsPerInch;
case LengthTypePC:
return value * 6 / cssPixelsPerInch;
}
ASSERT_NOT_REACHED();
return 0;
}
float SVGLengthContext::convertValueFromUserUnits(float value, SVGLengthMode mode, SVGLengthType toUnit, ExceptionState& exceptionState) const
{
switch (toUnit) {
case LengthTypeUnknown:
exceptionState.throwDOMException(NotSupportedError, ExceptionMessages::argumentNullOrIncorrectType(3, "SVGLengthType"));
return 0;
case LengthTypeNumber:
return value;
case LengthTypePercentage:
return convertValueFromUserUnitsToPercentage(value * 100, mode, exceptionState);
case LengthTypeEMS:
return convertValueFromUserUnitsToEMS(value, exceptionState);
case LengthTypeEXS:
return convertValueFromUserUnitsToEXS(value, exceptionState);
case LengthTypePX:
return value;
case LengthTypeCM:
return value / cssPixelsPerCentimeter;
case LengthTypeMM:
return value / cssPixelsPerMillimeter;
case LengthTypeIN:
return value / cssPixelsPerInch;
case LengthTypePT:
return value / cssPixelsPerPoint;
case LengthTypePC:
return value / cssPixelsPerPica;
}
ASSERT_NOT_REACHED();
return 0;
}
void SVGLength::setValue(float value, const SVGElement* context, ExceptionCode& ec)
{
switch (extractType(m_unit)) {
case LengthTypeUnknown:
ec = NOT_SUPPORTED_ERR;
break;
case LengthTypeNumber:
m_valueInSpecifiedUnits = value;
break;
case LengthTypePercentage: {
float result = convertValueFromUserUnitsToPercentage(value, context, ec);
if (!ec)
m_valueInSpecifiedUnits = result;
break;
}
case LengthTypeEMS: {
float result = convertValueFromUserUnitsToEMS(value, context, ec);
if (!ec)
m_valueInSpecifiedUnits = result;
break;
}
case LengthTypeEXS: {
float result = convertValueFromUserUnitsToEXS(value, context, ec);
if (!ec)
m_valueInSpecifiedUnits = result;
break;
}
case LengthTypePX:
m_valueInSpecifiedUnits = value;
break;
case LengthTypeCM:
m_valueInSpecifiedUnits = value * 2.54f / cssPixelsPerInch;
break;
case LengthTypeMM:
m_valueInSpecifiedUnits = value * 25.4f / cssPixelsPerInch;
break;
case LengthTypeIN:
m_valueInSpecifiedUnits = value / cssPixelsPerInch;
break;
case LengthTypePT:
m_valueInSpecifiedUnits = value * 72 / cssPixelsPerInch;
break;
case LengthTypePC:
m_valueInSpecifiedUnits = value * 6 / cssPixelsPerInch;
break;
}
}
