static int GetMinValue(lua_State* L)
{
CMeasure* self = GetSelf(L);
lua_pushnumber(L, self->GetMinValue());
return 1;
}
/*
** Updates the value(s) from the measures.
**
*/
bool CMeterHistogram::Update()
{
if (CMeter::Update() && !m_Measures.empty())
{
int maxSize = m_GraphHorizontalOrientation ? m_H : m_W;
if (maxSize > 0) // m_PrimaryValues is not NULL
{
CMeasure* measure = m_Measures[0];
CMeasure* secondaryMeasure = (m_Measures.size() >= 2) ? m_Measures[1] : NULL;
// Gather values
m_PrimaryValues[m_MeterPos] = measure->GetValue();
if (secondaryMeasure && m_SecondaryValues)
{
m_SecondaryValues[m_MeterPos] = secondaryMeasure->GetValue();
}
++m_MeterPos;
m_MeterPos %= maxSize;
m_MaxPrimaryValue = measure->GetMaxValue();
m_MinPrimaryValue = measure->GetMinValue();
m_MaxSecondaryValue = 0.0;
m_MinSecondaryValue = 0.0;
if (secondaryMeasure)
{
m_MaxSecondaryValue = secondaryMeasure->GetMaxValue();
m_MinSecondaryValue = secondaryMeasure->GetMinValue();
}
if (m_Autoscale)
{
// Go through all values and find the max
double newValue = 0.0;
for (int i = 0; i < maxSize; ++i)
{
newValue = max(newValue, m_PrimaryValues[i]);
}
// Scale the value up to nearest power of 2
if (newValue > DBL_MAX / 2.0)
{
m_MaxPrimaryValue = DBL_MAX;
}
else
{
m_MaxPrimaryValue = 2.0;
while (m_MaxPrimaryValue < newValue)
{
m_MaxPrimaryValue *= 2.0;
}
}
if (secondaryMeasure && m_SecondaryValues)
{
for (int i = 0; i < maxSize; ++i)
{
newValue = max(newValue, m_SecondaryValues[i]);
}
// Scale the value up to nearest power of 2
if (newValue > DBL_MAX / 2.0)
{
m_MaxSecondaryValue = DBL_MAX;
}
else
{
m_MaxSecondaryValue = 2.0;
while (m_MaxSecondaryValue < newValue)
{
m_MaxSecondaryValue *= 2.0;
}
}
}
}
}
return true;
}
return false;
}
/*
** Gets the value of a section variable. Returns true if strValue is set.
** The selector is stripped from strVariable.
**
*/
bool CConfigParser::GetSectionVariable(std::wstring& strVariable, std::wstring& strValue)
{
size_t colonPos = strVariable.find_last_of(L':');
if (colonPos == std::wstring::npos)
{
return false;
}
const std::wstring selector = strVariable.substr(colonPos + 1);
const WCHAR* selectorSz = selector.c_str();
strVariable.resize(colonPos);
bool isKeySelector = (!selector.empty() && iswalpha(selectorSz[0]));
if (isKeySelector)
{
// [Meter:X], [Meter:Y], [Meter:W], [Meter:H]
CMeter* meter = m_MeterWindow->GetMeter(strVariable);
if (meter)
{
WCHAR buffer[32];
if (_wcsicmp(selectorSz, L"X") == 0)
{
_itow_s(meter->GetX(), buffer, 10);
}
else if (_wcsicmp(selectorSz, L"Y") == 0)
{
_itow_s(meter->GetY(), buffer, 10);
}
else if (_wcsicmp(selectorSz, L"W") == 0)
{
_itow_s(meter->GetW(), buffer, 10);
}
else if (_wcsicmp(selectorSz, L"H") == 0)
{
_itow_s(meter->GetH(), buffer, 10);
}
else
{
return false;
}
strValue = buffer;
return true;
}
}
// Number: [Measure:], [Measure:dec]
// Percentual: [Measure:%], [Measure:%, dec]
// Scale: [Measure:/scale], [Measure:/scale, dec]
// Max/Min: [Measure:MaxValue], [Measure:MaxValue:/scale, dec] ('%' cannot be used)
enum VALUETYPE
{
RAW = 0,
PERCENTUAL = 1,
MAX = 2,
MIN = 3
} valueType = RAW;
if (isKeySelector)
{
if (_wcsicmp(selectorSz, L"MaxValue") == 0)
{
valueType = MAX;
}
else if (_wcsicmp(selectorSz, L"MinValue") == 0)
{
valueType = MIN;
}
else
{
return false;
}
selectorSz = L"";
}
else
{
colonPos = strVariable.find_last_of(L':');
if (colonPos != std::wstring::npos)
{
do
{
const WCHAR* keySelectorSz = strVariable.c_str() + colonPos + 1;
if (_wcsicmp(keySelectorSz, L"MaxValue") == 0)
{
valueType = MAX;
}
else if (_wcsicmp(keySelectorSz, L"MinValue") == 0)
{
valueType = MIN;
}
else
{
// Section name contains ':' ?
break;
}
strVariable.resize(colonPos);
}
while (0);
}
}
CMeasure* measure = m_MeterWindow->GetMeasure(strVariable);
if (measure)
{
int scale = 1;
const WCHAR* decimalsSz = wcschr(selectorSz, L',');
if (decimalsSz)
{
++decimalsSz;
}
if (*selectorSz == L'%') // Percentual
{
if (valueType == MAX || valueType == MIN) // '%' cannot be used with MAX/MIN value
{
return false;
}
valueType = PERCENTUAL;
}
else if (*selectorSz == L'/') // Scale
{
errno = 0;
scale = _wtoi(selectorSz + 1);
if (errno == EINVAL || scale == 0) // Invalid scale value
{
return false;
}
}
else
{
if (decimalsSz)
{
return false;
}
decimalsSz = selectorSz;
}
double value = (valueType == PERCENTUAL) ? measure->GetRelativeValue() * 100.0
: (valueType == MAX) ? measure->GetMaxValue() / scale
: (valueType == MIN) ? measure->GetMinValue() / scale
: measure->GetValue() / scale;
int decimals = 10;
if (decimalsSz)
{
while (iswspace(*decimalsSz)) ++decimalsSz;
if (*decimalsSz)
{
decimals = _wtoi(decimalsSz);
decimals = max(0, decimals);
decimals = min(32, decimals);
}
else
{
decimalsSz = NULL;
}
}
WCHAR format[32];
WCHAR buffer[128];
_snwprintf_s(format, _TRUNCATE, L"%%.%if", decimals);
int bufferLen = _snwprintf_s(buffer, _TRUNCATE, format, value);
if (!decimalsSz)
{
// Remove trailing zeros if decimal count was not specified.
measure->RemoveTrailingZero(buffer, bufferLen);
bufferLen = (int)wcslen(buffer);
}
strValue.assign(buffer, bufferLen);
return true;
}
return false;
}