- Remove lp_solve dependencies form Variable class and put everything into LinearSpec. As a side effect Variable management is a bit more consistence now. We want to replace lp_solve soon so it will be easier to replace it just in LinearSpec.

- Update copyrights.
- Lot of small things related to the Variable refactoring.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38892 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/libs/linprog/LinearSpec.h

@@ -36,6 +36,12 @@ public:
 	virtual						~LinearSpec();
 
 			Variable*			AddVariable();
+			bool				AddVariable(Variable* variable);
+			bool				RemoveVariable(Variable* variable,
+									bool deleteVariable = true);
+			int32				IndexOf(const Variable* variable) const;
+			bool				SetRange(Variable* variable, double min,
+									double max);
 
 			Constraint*			AddConstraint(SummandList* summands,
 									OperatorType op, double rightSide);
@@ -86,8 +92,6 @@ public:
 			void				SetObjectiveFunction(SummandList* objFunction);
 			void				UpdateObjectiveFunction();
 
-			ResultType			Presolve();
-			void				RemovePresolved();
 			ResultType			Solve();
 			void				Save(const char* fileName);
 
@@ -102,13 +106,12 @@ public:
 			operator BString() const;
 			void				GetString(BString& string) const;
 
-protected:
-			VariableList*		Variables() const;
-			ConstraintList*		Constraints() const;
-
-			int32 				fCountColumns;
+	const	ConstraintList&		Constraints() const;
 
 private:
+			ResultType			Presolve();
+			void				RemovePresolved();
+
 			lprec*				fLpPresolved;
 			OptimizationType	fOptimization;
 			lprec*				fLP;
@@ -121,7 +124,6 @@ private:
 
 public:
 	friend class		Constraint;
-	friend class		Variable;
 
 };
 

headers/libs/linprog/Variable.h

@@ -6,11 +6,9 @@
 #ifndef	VARIABLE_H
 #define	VARIABLE_H
 
-#include <File.h>
+
 #include <ObjectList.h>
 #include <String.h>
-#include <SupportDefs.h>
-
 
 namespace LinearProgramming {
 
@@ -51,15 +49,18 @@ public:
 									double penaltyNeg, double penaltyPos);
 
 			bool				IsValid();
+			//! Dangerous the variable don't belong to the LinearSpec anymore,
+			//! delete it yourself!
 			void				Invalidate();
 
-			virtual				~Variable();
+								~Variable();
 
 protected:
 								Variable(LinearSpec* ls);
 
 private:
 			LinearSpec*			fLS;
+
 			BObjectList<Summand>	fUsingSummands;
 				// All Summands that link to this Variable
 			double				fValue;
@@ -71,9 +72,7 @@ private:
 
 public:
 	friend class		LinearSpec;
-	friend class		Constraint;
 	friend class		Summand;
-
 };