void OptionVar::PrevValue(bool* pFastStep)
{
bool fastStep = (pFastStep != NULL && *pFastStep);
switch (Type)
{
case Type_Enum:
*AsInt() = ((GetEnumIndex() + (UInt32)EnumValues.GetSize() - 1) % EnumValues.GetSize());
break;
case Type_Int:
*AsInt() = Alg::Max<SInt32>(*AsInt() - StepInt * (fastStep ? 5 : 1), MinInt);
break;
case Type_Float:
// TODO: Will behave strange with NaN values.
*AsFloat() = Alg::Max<float>(*AsFloat() - StepFloat * (fastStep ? 5.0f : 1.0f), MinFloat);
break;
case Type_Bool:
*AsBool() = !*AsBool();
break;
}
SignalUpdate();
}
uint EnumData::GetEnum(const string & name) const
{
//Loop and retrieve
int index = GetEnumIndex(name);
if(index != -1)
{
return enumValues[index].value;
}
return (uint)-1;
}
const string & EnumData::GetEnum(uint value) const
{
//Retrieve the index
int index = GetEnumIndex(value);
if(index != -1)
{
return enumValues[index].name;
}
return unknownValueStr;
}
string EnumData::GetDisplayString(uint value) const
{
//Check for a bit mask
if(!isBitMask)
{
//Look for the value
int index = GetEnumIndex(value);
if(index != -1)
{
return enumValues[index].name;
}
else
{
//Add the value to the buffer
string retString;
StringPrintF(retString,"0x%04x",value);
return retString;
}
}
else
{
string bitMaskStr;
bool firstBit =true;
//Loop and test all bits
for(uint i=0;i<sizeof(uint)*8;i++)
{
uint mask = ((uint)1 << i);
//Test if the mask value is used
if(value & mask)
{
//Add a seperator
if(!firstBit)
{
bitMaskStr = bitMaskStr + " | ";
}
else
{
firstBit =false;
}
//Look-up the mask value
int index = GetEnumIndex(mask);
if(index != -1)
{
bitMaskStr = bitMaskStr + enumValues[index].name;
}
else
{
//Add the mask value to the buffer
string retString;
StringPrintF(retString,"0x%04x",mask);
bitMaskStr = bitMaskStr + retString;
}
}
}
//Assign a zero string for no bits
if(firstBit)
{
//Ensure this is no "zero mask" value
int index = GetEnumIndex(value);
if(index != -1)
{
return enumValues[index].name;
}
else
{
bitMaskStr = "0x000000";
}
}
//Return the mask
return bitMaskStr;
}
}
