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// custom.h --
// $Id: custom.h,v 1.6 2003/11/23 01:42:51 wcvs Exp $
// This is part of Metakit, the homepage is http://www.equi4.com/metakit/
/** @file
* Encapsulation of many custom viewer classes
*/
#ifndef __CUSTOM_H__
#define __CUSTOM_H__
#ifndef __FIELD_H__
#include "field.h"
#endif
#ifndef __STORE_H__
#include "handler.h"
#endif
/////////////////////////////////////////////////////////////////////////////
class c4_CustomSeq : public c4_HandlerSeq
{
c4_CustomViewer* _viewer;
bool _inited;
public:
c4_CustomSeq (c4_CustomViewer* viewer_);
virtual ~c4_CustomSeq ();
virtual int NumRows() const;
virtual bool RestrictSearch(c4_Cursor, int&, int&);
virtual void InsertAt(int, c4_Cursor, int =1);
virtual void RemoveAt(int, int =1);
virtual void Move(int from_, int);
bool DoGet(int row_, int col_, c4_Bytes& buf_) const;
void DoSet(int row_, int col_, const c4_Bytes& buf_);
private: // this *is* used, as override
virtual c4_Handler* CreateHandler(const c4_Property&);
};
/////////////////////////////////////////////////////////////////////////////
extern c4_CustomViewer* f4_CustSlice(c4_Sequence&, int, int , int);
extern c4_CustomViewer* f4_CustProduct(c4_Sequence&, const c4_View&);
extern c4_CustomViewer* f4_CustRemapWith(c4_Sequence&, const c4_View&);
extern c4_CustomViewer* f4_CustPair(c4_Sequence&, const c4_View&);
extern c4_CustomViewer* f4_CustConcat(c4_Sequence&, const c4_View&);
extern c4_CustomViewer* f4_CustRename(c4_Sequence&,
const c4_Property&, const c4_Property&);
extern c4_CustomViewer* f4_CustGroupBy(c4_Sequence&,
const c4_View&, const c4_Property&);
extern c4_CustomViewer* f4_CustJoinProp(c4_Sequence&,
const c4_ViewProp&, bool);
extern c4_CustomViewer* f4_CustJoin(c4_Sequence&,
const c4_View&, const c4_View&, bool);
/////////////////////////////////////////////////////////////////////////////
#endif
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