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a101e99aad
BLayout implementation (BALMLayout) using the Auckland Layout Model (ALM). The original ALM was implemented by Christof Lutteroth, the Haiku/C++ version by James Kim. The code needs some review, but the test programs seem to work fine. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23889 a95241bf-73f2-0310-859d-f6bbb57e9c96
55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
#ifndef SOFT_CONSTRAINT_H
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#define SOFT_CONSTRAINT_H
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#include "Constraint.h"
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#include <List.h>
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namespace LinearProgramming {
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class LinearSpec;
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class ObjFunctionSummand;
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class Variable;
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/**
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* Soft constraint, i.e. one that does not necessarily have to be satisfied.
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* Use this instead of hard constraints to avoid over-constrained specifications.
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*/
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class SoftConstraint : public Constraint {
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public:
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void ChangeLeftSide(BList* coeffs, BList* vars);
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OperatorType Op();
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void SetOp(OperatorType value);
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double PenaltyNeg();
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void SetPenaltyNeg(double value);
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double PenaltyPos();
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void SetPenaltyPos(double value);
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//~ string ToString();
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Variable* DNeg() const;
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Variable* DPos() const;
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~SoftConstraint();
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protected:
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SoftConstraint(LinearSpec* ls, BList* coeffs, BList* vars,
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OperatorType op, double rightSide,
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double penaltyNeg, double penaltyPos);
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private:
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Variable* fDNeg;
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Variable* fDPos;
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ObjFunctionSummand* fDNegSummand;
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ObjFunctionSummand* fDPosSummand;
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public:
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friend class LinearSpec;
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};
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} // namespace LinearProgramming
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using LinearProgramming::SoftConstraint;
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#endif // SOFT_CONSTRAINT_H
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