1 files changed, 85 insertions, 0 deletions

diff --git a/linden/indra/llmath/llcalc.h b/linden/indra/llmath/llcalc.h
new file mode 100644
index 0000000..a376895
--- /dev/null
+++ b/linden/indra/llmath/llcalc.h
@@ -0,0 +1,85 @@
+/*
+ *  LLCalc.h
+ *  SecondLife
+ *
+ *  Created by Aimee Walton on 28/09/2008.
+ *  Copyright 2008 Aimee Walton.
+ *
+ */
+
+#ifndef LL_CALC_H
+#define LL_CALC_H
+
+#include <map>
+#include <string>
+
+//#include "llsd.h"
+
+class LLCalc
+{
+public:
+        LLCalc();
+        ~LLCalc();
+
+        // Variable name constants
+        static const char* X_POS;
+        static const char* Y_POS;
+        static const char* Z_POS;
+        static const char* X_SCALE;
+        static const char* Y_SCALE;
+        static const char* Z_SCALE;
+        static const char* X_ROT;
+        static const char* Y_ROT;
+        static const char* Z_ROT;
+        static const char* HOLLOW;
+        static const char* CUT_BEGIN;
+        static const char* CUT_END;
+        static const char* PATH_BEGIN;
+        static const char* PATH_END;
+        static const char* TWIST_BEGIN;
+        static const char* TWIST_END;
+        static const char* X_SHEAR;
+        static const char* Y_SHEAR;
+        static const char* X_TAPER;
+        static const char* Y_TAPER;
+        static const char* RADIUS_OFFSET;
+        static const char* REVOLUTIONS;
+        static const char* SKEW;
+        static const char* X_HOLE;
+        static const char* Y_HOLE;
+        static const char* TEX_U_SCALE;
+        static const char* TEX_V_SCALE;
+        static const char* TEX_U_OFFSET;
+        static const char* TEX_V_OFFSET;
+        static const char* TEX_ROTATION;
+        static const char* TEX_TRANSPARENCY;
+        static const char* TEX_GLOW;
+
+        void    setVar(const std::string& name, const F32& value);
+        void    clearVar(const std::string& name);
+        void    clearAllVariables();
+//      void    updateVariables(LLSD& vars);
+
+        bool    evalString(const std::string& expression, F32& result);
+        std::string::size_type  getLastErrorPos()       { return mLastErrorPos; }
+        
+        static LLCalc* getInstance();
+        static void cleanUp();
+
+        typedef std::map<std::string, F32> calc_map_t;
+        
+private:
+        std::string::size_type  mLastErrorPos;
+        
+        calc_map_t*     mConstants;
+        calc_map_t*     mVariables;
+        
+        // *TODO: Add support for storing user defined variables, and stored functions.
+        //      Will need UI work, and a means to save them between sessions.
+//      calc_map_t* mUserVariables;
+        
+        // "There shall be only one"
+        static LLCalc*  sInstance;
+};
+
+#endif // LL_CALC_H