Library/MeasureCalc.cpp

@@ -0,0 +1,129 @@
+/*
+  Copyright (C) 2004 Kimmo Pekkola
+
+  This program is free software; you can redistribute it and/or
+  modify it under the terms of the GNU General Public License
+  as published by the Free Software Foundation; either version 2
+  of the License, or (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+*/
+/*
+  $Header: /home/cvsroot/Rainmeter/Library/MeasureCalc.cpp,v 1.1.1.1 2005/07/10 18:51:06 rainy Exp $
+
+  $Log: MeasureCalc.cpp,v $
+  Revision 1.1.1.1  2005/07/10 18:51:06  rainy
+  no message
+
+  Revision 1.2  2004/07/11 17:14:39  rainy
+  MeterWindow holds the counter now.
+
+  Revision 1.1  2004/06/05 10:55:54  rainy
+  Too much changes to be listed in here...
+
+*/
+
+#pragma warning(disable: 4996)
+
+#include "MeasureCalc.h"
+#include "Rainmeter.h"
+
+hqStrMap* CMeasureCalc::c_VarMap = NULL;
+int CMeasureCalc::m_Loop = 0;
+
+/*
+** CMeasureCalc
+**
+** The constructor
+**
+*/
+CMeasureCalc::CMeasureCalc(CMeterWindow* meterWindow) : CMeasure(meterWindow)
+{
+	m_Parser = MathParser_Create(NULL);
+}
+
+/*
+** ~CMeasureCalc
+**
+** The destructor
+**
+*/
+CMeasureCalc::~CMeasureCalc()
+{
+	MathParser_Destroy(m_Parser);
+
+	if (c_VarMap)
+	{
+		StrMap_Destroy(c_VarMap);
+		c_VarMap = NULL;
+	}
+}
+
+/*
+** Update
+**
+** Updates the calculation
+**
+*/
+bool CMeasureCalc::Update()
+{
+	if (!CMeasure::PreUpdate()) return false;
+
+	m_Parser->Parameters = c_VarMap;
+
+	char* errMsg = MathParser_Parse(m_Parser, ConvertToAscii(m_Formula.c_str()).c_str(), &m_Value);
+	if (errMsg != NULL)
+	{
+		DebugLog(ConvertToWide(errMsg).c_str());
+	}
+
+	return PostUpdate();
+}
+
+void CMeasureCalc::UpdateVariableMap(CMeterWindow& meterWindow)
+{
+	// Delete the old map
+	if (c_VarMap)
+	{
+		StrMap_Destroy(c_VarMap);
+		c_VarMap = NULL;
+	}
+
+	// Create the variable map
+	c_VarMap = Strmap_Create(sizeof(double), 0); 
+
+	std::list<CMeasure*>& measures = meterWindow.GetMeasures();
+
+	std::list<CMeasure*>::iterator iter = measures.begin();
+	for( ; iter != measures.end(); iter++)
+	{
+		const char* name = (*iter)->GetANSIName();
+		double val = (*iter)->GetValue();
+
+		StrMap_AddString(c_VarMap, name, &val);
+	}
+
+	// Add the counter
+	double counter = meterWindow.GetUpdateCounter();
+	StrMap_AddString(c_VarMap, "Counter", &counter);
+}
+
+/*
+** ReadConfig
+**
+** Reads the measure specific configs.
+**
+*/
+void CMeasureCalc::ReadConfig(CConfigParser& parser, const WCHAR* section)
+{
+	CMeasure::ReadConfig(parser, section);
+
+	m_Formula = parser.ReadString(section, L"Formula", L"");
+}