New build-in variables: #WORKAREAWIDTH#, #WORKAREAHEIGHT#, #SCREENAREAWIDTH#, #SCREENAREAHEIGHT#

Added support for math formulas for the X, Y, W, H, WindowX and WindowY (e.g. "WindowX=(#WORKAREAWIDTH# / 2)"). The formula must be surrounded by parenthesis.

Library/ConfigParser.cpp

@@ -36,6 +36,7 @@ using namespace Gdiplus;
 */
 CConfigParser::CConfigParser()
 {
+	m_Parser = MathParser_Create(NULL);
 }
 
 /*
@@ -46,6 +47,7 @@ CConfigParser::CConfigParser()
 */
 CConfigParser::~CConfigParser()
 {
+	MathParser_Destroy(m_Parser);
 }
 
 /*
@@ -59,7 +61,7 @@ void CConfigParser::Initialize(LPCTSTR filename, CRainmeter* pRainmeter)
 
 	m_Variables.clear();
 
-	// Set the paths as default variables
+	// Set the default variables
 	if (pRainmeter)
 	{
 		m_Variables[L"PROGRAMPATH"] = pRainmeter->GetPath();
@@ -68,6 +70,16 @@ void CConfigParser::Initialize(LPCTSTR filename, CRainmeter* pRainmeter)
 		m_Variables[L"PLUGINSPATH"] = pRainmeter->GetPluginPath();
 		m_Variables[L"CURRENTPATH"] = CRainmeter::ExtractPath(filename);
 		m_Variables[L"ADDONSPATH"] = pRainmeter->GetPath() + L"Addons\\";
+
+		TCHAR buffer[256];
+		swprintf(buffer, L"%i", GetSystemMetrics(SM_CXFULLSCREEN));
+		m_Variables[L"WORKAREAWIDTH"] = buffer;
+		swprintf(buffer, L"%i", GetSystemMetrics(SM_CYFULLSCREEN));
+		m_Variables[L"WORKAREAHEIGHT"] = buffer;
+		swprintf(buffer, L"%i", GetSystemMetrics(SM_CXSCREEN));
+		m_Variables[L"SCREENAREAWIDTH"] = buffer;
+		swprintf(buffer, L"%i", GetSystemMetrics(SM_CYSCREEN));
+		m_Variables[L"SCREENAREAHEIGHT"] = buffer;
 	}
 
 	ReadVariables();
@@ -271,6 +283,29 @@ int CConfigParser::ReadInt(LPCTSTR section, LPCTSTR key, int defValue)
 	return _wtoi(result.c_str());
 }
 
+// Works as ReadFloat except if the value is surrounded by parenthesis in which case it tries to evaluate the formula
+double CConfigParser::ReadFormula(LPCTSTR section, LPCTSTR key, double defValue)
+{
+	TCHAR buffer[256];
+	swprintf(buffer, L"%f", defValue);
+
+	const std::wstring& result = ReadString(section, key, buffer);
+
+	// Formulas must be surrounded by parenthesis
+	if (!result.empty() && result[0] == L'(' && result[result.size() - 1] == L')')
+	{
+		double resultValue = defValue;
+		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 resultValue;
+	}
+	return wcstod(result.c_str(), NULL);
+}
+
 Color CConfigParser::ReadColor(LPCTSTR section, LPCTSTR key, Color defValue)
 {
 	TCHAR buffer[256];

Library/ConfigParser.h

@@ -24,6 +24,7 @@
 #include <string>
 #include <vector>
 #include <gdiplus.h>
+#include "ccalc-0.5.1/mparser.h"
 
 class CRainmeter;
 
@@ -37,6 +38,7 @@ public:
 
 	const std::wstring& ReadString(LPCTSTR section, LPCTSTR key, LPCTSTR defValue);
 	double ReadFloat(LPCTSTR section, LPCTSTR key, double defValue);
+	double ReadFormula(LPCTSTR section, LPCTSTR key, double defValue);
 	int ReadInt(LPCTSTR section, LPCTSTR key, int defValue);
 	Gdiplus::Color ReadColor(LPCTSTR section, LPCTSTR key, Gdiplus::Color defValue);
 	std::vector<Gdiplus::REAL> ReadFloats(LPCTSTR section, LPCTSTR key);
@@ -50,6 +52,8 @@ private:
 
 	std::map<std::wstring, std::wstring> m_Variables;
 	std::wstring m_Filename;
+
+	hqMathParser* m_Parser;
 };
 
 #endif

Library/Meter.cpp

@@ -221,6 +221,10 @@ void CMeter::ReadConfig(const WCHAR* section)
 		{
 			m_RelativeX = POSITION_RELATIVE_BR;
 		}
+		else
+		{
+			m_X = (int)parser.ReadFormula(section, L"X", 0.0);
+		}
 	}
 
 	const std::wstring& y = parser.ReadString(section, L"Y", L"0");
@@ -235,10 +239,14 @@ void CMeter::ReadConfig(const WCHAR* section)
 		{
 			m_RelativeY = POSITION_RELATIVE_BR;
 		}
+		else
+		{
+			m_Y = (int)parser.ReadFormula(section, L"Y", 0.0);
+		}
 	}
 
-	m_W = parser.ReadInt(section, L"W", 1);
-	m_H = parser.ReadInt(section, L"H", 1);
+	m_W = (int)parser.ReadFormula(section, L"W", 1.0);
+	m_H = (int)parser.ReadFormula(section, L"H", 1.0);
 
 	m_Hidden = 0!=parser.ReadInt(section, L"Hidden", 0);
 	m_SolidBevel = (BEVELTYPE)parser.ReadInt(section, L"BevelType", m_SolidBevel);

Library/MeterWindow.cpp

@@ -1176,6 +1176,22 @@ void CMeterWindow::ReadConfig()
 			m_WindowY = ConvertToWide(tmpSz);
 		}
 		
+		// Check if the window position should be read as a formula
+		if (!m_WindowX.empty() && m_WindowX[0] == L'(' && m_WindowX[m_WindowX.size() - 1] == L')')
+		{
+			double value = parser.ReadFormula(section, _T("WindowX"), 0.0);
+			TCHAR buffer[256];
+			swprintf(buffer, L"%i", (int)value);
+			m_WindowX = buffer;
+		}
+		if (!m_WindowY.empty() && m_WindowY[0] == L'(' && m_WindowY[m_WindowY.size() - 1] == L')')
+		{
+			double value = parser.ReadFormula(section, _T("WindowY"), 0.0);
+			TCHAR buffer[256];
+			swprintf(buffer, L"%i", (int)value);
+			m_WindowY = buffer;
+		}
+
 		int zPos = parser.ReadInt(section, L"AlwaysOnTop", m_WindowZPosition);
 		if (zPos == -1)
 		{

Library/ccalc-0.5.1/lexer.h

@@ -1,3 +1,5 @@
+#pragma once
+
 /*
     Universal lexical analiser by hq_software
 */

Library/ccalc-0.5.1/mparser.h

@@ -1,3 +1,5 @@
+#pragma once
+
 /*
     Math parser for CCalc library.
 */

Library/ccalc-0.5.1/strmap.h

@@ -1,3 +1,5 @@
+#pragma once
+
 #include "pack.h"
 
 #ifdef __cplusplus

Plugins/PluginiTunes/iTunesPlugin.cpp

@@ -20,7 +20,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #pragma warning(disable: 4996)
 
 #include <windows.h>
-//#include <atlbase.h>
 #include <comdef.h>
 #include "iTunesCOMInterface.h"
 #include "..\..\Library\Export.h"	// Rainmeter's exported functions