cECPGroupPrefs.h

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//
//
#ifndef _INC_cECPGroupPrefs_H
#define _INC_cECPGroupPrefs_H
#ifndef NO_PRAGMA_ONCE
#pragma once
#endif
 
#include "cECPGroupParams.h"
 
namespace GrayLib
{
        class cECPGroupPrefs    // GRAYLIB_LINK
        {
 
        private:
                ECPGroup_TYPE* m_pGroupId;      
                bool m_bAllocated;
 
        public:
                cECPGroupPrefs(const ECPGroup_TYPE* pGroupId = nullptr)
                        : m_pGroupId(const_cast<ECPGroup_TYPE*>(pGroupId))
                        , m_bAllocated(false)
                {
                }
                ~cECPGroupPrefs()
                {
                        SetNull();
                }
 
                bool isNull() const
                {
                        return m_pGroupId == nullptr;
                }
                bool isEmpty() const
                {
                        return(isNull() || m_pGroupId[0] == ECPGroup_NONE);
                }
                ECPGroup_TYPE GetAt(int i) const
                {
                        if (m_pGroupId == nullptr)
                                return ECPGroup_NONE;
                        return m_pGroupId[i];
                }
 
                bool HasId(ECPGroup_TYPE id) const
                {
                        ASSERT(m_pGroupId != nullptr);
                        for (int i = 0; m_pGroupId[i] != ECPGroup_NONE; i++)
                        {
                                if (m_pGroupId[i] == id)
                                        return true;
                        }
                        return false;
                }
 
                ECPGroup_TYPE FindBestMatch(const cECPGroupPrefs& prefs) const
                {
                        if (isNull())
                                return ECPGroup_NONE;
                        if (!prefs.isNull())
                        {
                                for (int i = 0; ; i++)
                                {
                                        ECPGroup_TYPE id = prefs.GetAt(i);
                                        if (HasId(id))
                                                return id;
                                }
                        }
                        return GetAt(0);        // just take the first i guess.
                }
 
                void SetAt(int i, ECPGroup_TYPE id)
                {
                        ASSERT(m_pGroupId != nullptr);
                        m_pGroupId[i] = id;
                }
 
                void SetNull()
                {
                        if (m_bAllocated)
                        {
                                delete m_pGroupId;
                                m_bAllocated = false;
                        }
                        m_pGroupId = nullptr;
                }
                void SetAllocQty(int iQty)
                {
                        SetNull();
                        m_pGroupId = new ECPGroup_TYPE[iQty];
                        m_bAllocated = true;
                }
        };
}
 
#endif