MattKings Changes:

1) New feature of Meter=String
StringCase= [NONE | LOWER | UPPER | PROPER]
2) Changes to SetVariable to allow mathematical formulas and functions to be used in setting a variable.

Library/ConfigParser.cpp

@@ -604,6 +604,27 @@ double CConfigParser::ReadFormula(LPCTSTR section, LPCTSTR key, double defValue)
 	return ParseDouble(result, defValue);
 }
 
+// Returns an int if the formula was read successfully, -1 for failure.
+// Pass a pointer to a double.
+int CConfigParser::ReadFormula(std::wstring& result, double* resultValue)
+{
+	// Formulas must be surrounded by parenthesis
+	if (!result.empty() && result[0] == L'(' && result[result.size() - 1] == L')')
+	{
+		char* errMsg = MathParser_Parse(m_Parser, ConvertToAscii(result.substr(1, result.size() - 2).c_str()).c_str(), resultValue);
+		
+		if (errMsg != NULL)
+		{
+			DebugLog(ConvertToWide(errMsg).c_str());
+			return -1;
+		}
+
+		return 1;
+	}
+
+	return -1;
+}
+
 Color CConfigParser::ReadColor(LPCTSTR section, LPCTSTR key, Color defValue)
 {
 	TCHAR buffer[256];

Library/ConfigParser.h

@@ -54,6 +54,10 @@ public:
 	std::wstring& GetFilename() { return m_Filename; }
 	const std::vector<std::wstring>& GetSections();
 
+
+	// Returns an int if the formula was read successfully, -1 for failure.
+	int ReadFormula(std::wstring& result, double* number);
+
 	static std::vector<std::wstring> Tokenize(const std::wstring& str, const std::wstring delimiters);
 
 	static void ClearMultiMonitorVariables() { c_MonitorVariables.clear(); }

Library/MeterString.cpp

@@ -27,6 +27,10 @@ using namespace Gdiplus;
 std::map<std::wstring, Gdiplus::FontFamily*> CMeterString::c_FontFamilies;
 std::map<std::wstring, Gdiplus::Font*> CMeterString::c_Fonts;
 
+std::wstring StringToUpper(std::wstring str);
+std::wstring StringToLower(std::wstring str);
+std::wstring StringToProper(std::wstring str);
+
 /*
 ** CMeterString
 **
@@ -51,6 +55,7 @@ CMeterString::CMeterString(CMeterWindow* meterWindow) : CMeter(meterWindow)
 	m_NumOfDecimals = -1;
 	m_DimensionsDefined = false;
 	m_Angle = 0.0;
+	m_textCase = TEXTCASE_NONE;
 }
 
 /*
@@ -299,6 +304,28 @@ void CMeterString::ReadConfig(const WCHAR* section)
         throw CError(std::wstring(L"No such StringAlign: ") + align, __LINE__, __FILE__);
 	}
 
+	std::wstring stringCase;
+	stringCase = parser.ReadString(section, L"StringCase", L"NONE");
+	
+	if(_wcsicmp(stringCase.c_str(), L"NONE") == 0)
+	{
+		m_textCase = TEXTCASE_NONE;
+	}
+	else if(_wcsicmp(stringCase.c_str(), L"UPPER") == 0)
+	{
+		m_textCase = TEXTCASE_UPPER;
+	}
+	else if(_wcsicmp(stringCase.c_str(), L"LOWER") == 0)
+	{
+		m_textCase = TEXTCASE_LOWER;
+	}
+	else if(_wcsicmp(stringCase.c_str(), L"PROPER") == 0)
+	{
+		m_textCase = TEXTCASE_PROPER;
+	}
+
+	
+
 	std::wstring style;
 	style = parser.ReadString(section, L"StringStyle", L"NORMAL");
 
@@ -417,6 +444,20 @@ bool CMeterString::Update()
 		}
 		m_String += m_Postfix;
 
+		switch(m_textCase)
+		{
+		case TEXTCASE_UPPER:
+			m_String = StringToUpper(m_String);
+			break;
+		case TEXTCASE_LOWER:
+			m_String = StringToLower(m_String);
+			break;
+		case TEXTCASE_PROPER:
+			m_String = StringToProper(m_String);
+			break;
+		}
+		
+
 		if (!m_DimensionsDefined)
 		{
 			// Calculate the text size
@@ -623,4 +664,57 @@ std::wstring CMeterString::FontPropertiesToString(FontFamily* fontFamily, REAL s
 	return stream.str();
 }
 
+/*
+** FontPropertiesToString
+**
+** Static helper to convert font properties to a string so it can be used as a key for the cache map.
+**
+*/
+std::wstring StringToUpper(std::wstring str)
+{
+	//change each element of the string to upper case
+	for(unsigned int i = 0; i < str.length(); i++)
+	{
+		str[i] = toupper( str[i] );
+	}
+
+	return str; //return the converted string
+}
+
+std::wstring StringToLower(std::wstring str)
+{
+	//change each element of the string to lower case
+	for(unsigned int i = 0; i < str.length(); i++)
+	{
+		str[i] = tolower(str[i]);
+	}
+
+	return str;//return the converted string
+}
+
+std::wstring StringToProper(std::wstring str)
+{
+	//change each element of the string to lower case
+	for(unsigned int i = 0; i < str.length(); i++)
+	{
+		if(i == 0)
+		{
+			str[i] = toupper( str[i] );
+		}
+		else
+		{
+			if(str[i-1] == ' ')
+			{
+				str[i] = toupper(str[i]);
+			}
+			else
+			{
+				str[i] = tolower(str[i]);
+			}
+		}
+	}
+
+	return str;//return the converted string
+}
+
 // EOF

Library/MeterString.h

@@ -58,6 +58,14 @@ private:
 		EFFECT_BORDER
 	};
 
+	enum TEXTCASE
+	{
+		TEXTCASE_NONE,
+		TEXTCASE_UPPER,
+		TEXTCASE_LOWER,
+		TEXTCASE_PROPER,
+	};
+
 	bool DrawString(Gdiplus::Graphics& graphics, Gdiplus::RectF* rect);
 
 	Gdiplus::Color m_Color;				// The color of the text
@@ -70,6 +78,7 @@ private:
 	METER_ALIGNMENT m_Align;			// Alignment of the text
 	TEXTSTYLE m_Style;					// Style of the text
 	TEXTEFFECT m_Effect;				// Text effect
+	TEXTCASE m_textCase;				// Case of the text
 	int m_FontSize;						// Size of the fonts
 	double m_Scale;						// Scaling if autoscale is not used
 	bool m_NoDecimals;					// Number of decimals to use

Library/MeterWindow.cpp

@@ -732,8 +732,24 @@ void CMeterWindow::RunBang(BANGCOMMAND bang, const WCHAR* arg)
 		{
 			std::wstring strVariable(arg, pos - arg);
 			std::wstring strValue(pos + 1);
+			double value;
+			int result = m_Parser.ReadFormula(strValue, &value);
+			
+			// Formula read fine
+			if(result != -1)
+			{
+				TCHAR buffer[256];
+				swprintf(buffer, L"%f", value);
+
+				const std::wstring& resultString = buffer;
+
+				m_Parser.SetVariable(strVariable, resultString);
+			}
+			else
+			{
 				m_Parser.SetVariable(strVariable, strValue);
 			}
+		}
 		else
 		{
 			DebugLog(L"Cannot parse parameters for !RainmeterSetVariable");
@@ -2437,7 +2453,6 @@ void CMeterWindow::Redraw()
 	}
 }
 
-
 /*
 ** Update
 **
@@ -2454,6 +2469,7 @@ void CMeterWindow::Update(bool nodraw)
 
 	// Update all measures
 	std::list<CMeasure*>::iterator i = m_Measures.begin();
+
 	for( ; i != m_Measures.end(); i++)
 	{
 		try
@@ -2490,6 +2506,7 @@ void CMeterWindow::Update(bool nodraw)
 
 	// Statistics
 	CMeasureNet::UpdateStats();
+	OutputDebugString(L"Butts");
 	Rainmeter->WriteStats(false);
 
 	if (!nodraw)