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/*
* tools.h: Various tools
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: tools.h 2.2 2009/04/14 20:41:39 kls Exp $
*/
#ifndef __LIST_H
#define __LIST_H
//#include "misc.h"
class cListObject {
private:
cListObject *prev, *next;
public:
cListObject(void);
virtual ~cListObject();
virtual int Compare(const cListObject &ListObject) const { return 0; }
///< Must return 0 if this object is equal to ListObject, a positive value
///< if it is "greater", and a negative value if it is "smaller".
void Append(cListObject *Object);
void Insert(cListObject *Object);
void Unlink(void);
int Index(void) const;
cListObject *Prev(void) const { return prev; }
cListObject *Next(void) const { return next; }
};
class cListBase {
protected:
cListObject *objects, *lastObject;
cListBase(void);
int count;
public:
virtual ~cListBase();
void Add(cListObject *Object, cListObject *After = NULL);
void Ins(cListObject *Object, cListObject *Before = NULL);
void Del(cListObject *Object, bool DeleteObject = true);
virtual void Move(int From, int To);
void Move(cListObject *From, cListObject *To);
virtual void Clear(void);
cListObject *Get(int Index) const;
int Count(void) const { return count; }
void Sort(void);
};
template<class T> class cList : public cListBase {
public:
T *Get(int Index) const { return (T *)cListBase::Get(Index); }
T *First(void) const { return (T *)objects; }
T *Last(void) const { return (T *)lastObject; }
T *Prev(const T *object) const { return (T *)object->cListObject::Prev(); } // need to call cListObject's members to
T *Next(const T *object) const { return (T *)object->cListObject::Next(); } // avoid ambiguities in case of a "list of lists"
};
#endif //__LIST_H
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