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<TITLE>Source: hk_classes/hk_classes/hk_dbvisible.h</TITLE>
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<h1>Source: hk_classes/hk_classes/hk_dbvisible.h</h1>
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<pre>
// ****************************************************************************
// copyright (c) 2000-2002 Horst Knorr <hk_classes@knoda.org>
// This file is part of the hk_classes library.
// This file may be distributed and/or modified under the terms of the
// GNU Library Public License version 2 as published by the Free Software
// Foundation and appearing in the file COPYING included in the
// packaging of this file.
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
// ****************************************************************************
#ifndef HK_DBVISIBLE
#define HK_DBVISIBLE
#include "hk_visible.h"
using namespace std;
class hk_database;
/**
*
*@short base class for database depending only widgets
*@version $Revision: 1.2 $
*@author Horst Knorr (hk_classes@knoda.org)
*
*base class for database depending only widgets. Just set the database with @ref set_database
*/
class hk_dbvisible :public hk_visible
{
friend class hk_database;
public:
hk_dbvisible(hk_presentation* p=NULL);
virtual ~hk_dbvisible(void);
/**
* the database which is base of this object
*/
void set_database(hk_database* db);
hk_database* database(void);
protected:
virtual void database_delete(void);
/**
*FOR WIDGET DEVELOPERS ONLY:
*will be automatically called before the database will be closed.(i.e when a new database will
*be created and the old one will be destroyed by hk_connection
*/
virtual void before_source_vanishes(void);
hk_database* p_database;
private:
//p_already_handled is used from hk_database in bulk operations to find out if this object has been already handled.
bool p_already_handled;
};
#endif
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