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/*******************************************************************************
* shroudBNC - an object-oriented framework for IRC *
* Copyright (C) 2005-2014 Gunnar Beutner *
* *
* 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. *
*******************************************************************************/
#ifndef OBJECT_H
#define OBJECT_H
class CUser;
/**
* CObjectBase
*
* Base class for CObject.
*/
class SBNCAPI CObjectBase {
private:
enum ObjectType_e {
eUser,
eObject
} m_Type;
union {
CUser *User;
CObjectBase *Object;
} m_Owner;
protected:
CObjectBase(void) {
m_Owner.Object = NULL;
m_Type = eObject;
}
CObjectBase *GetOwnerBase(void) const {
return m_Owner.Object;
}
void SetOwnerBase(CObjectBase *Owner) {
m_Owner.Object = Owner;
m_Type = eObject;
}
int GetTypeBase(void) {
return m_Type;
}
void SetTypeBase(int Type) {
m_Type = (ObjectType_e)Type;
}
void SetUser(CUser *User) {
m_Owner.User = User;
m_Type = eUser;
}
public:
virtual ~CObjectBase(void) {}
virtual CUser *GetUser(void) const {
if (m_Type == eUser) {
return m_Owner.User;
}
return NULL;
}
};
/**
* CObject
*
* Base class for all ownable objects.
*/
template<typename ObjectType, typename OwnerType>
class SBNCAPI CObject : public CObjectBase {
protected:
CObject(void) : CObjectBase() {}
CObject(OwnerType *Owner) : CObjectBase() {
SetOwner(Owner);
}
~CObject(void) {
SetOwner(NULL);
}
public:
/**
* GetUser
*
* Returns the user who is owning the object, or NULL if the object
* is currently unowned.
*/
virtual CUser *GetUser(void) const {
CUser *User;
User = CObjectBase::GetUser();
if (User != NULL) {
return User;
}
if (GetOwnerBase() != NULL) {
return GetOwnerBase()->GetUser();
} else {
return NULL;
}
}
/**
* GetOwner
*
* Returns the immediate owner of the object, or NULL if the object
* is currently unowned.
*/
OwnerType *GetOwner(void) const {
return (OwnerType *)GetOwnerBase();
}
/**
* SetOwner
*
* Sets the owner for the object.
*
* @param Owner the new owner
*/
void SetOwner(OwnerType *Owner) {
if (typeid(Owner) == typeid(CUser *)) {
SetUser((CUser *)Owner);
} else {
SetOwnerBase(dynamic_cast<CObjectBase *>(Owner));
}
}
};
#endif /* OBJECT_H */
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