var_percent.hpp
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上传日期:2020-07-06
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midi
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Unix_Linux
- /*****************************************************************************
- * var_percent.hpp
- *****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
- * $Id: 7a18ab672ecc746bd25af064d1de39ab7ebe8406 $
- *
- * Authors: Cyril Deguet <asmax@via.ecp.fr>
- * Olivier Teulière <ipkiss@via.ecp.fr>
- *
- * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
- *****************************************************************************/
- #ifndef VAR_PERCENT_HPP
- #define VAR_PERCENT_HPP
- #include "variable.hpp"
- #include "observer.hpp"
- class VarPercent;
- /// Percentage variable
- class VarPercent: public Variable, public Subject<VarPercent>
- {
- public:
- VarPercent( intf_thread_t *pIntf ): Variable( pIntf ), m_value( 0 ) {}
- virtual ~VarPercent() {}
- /// Get the variable type
- virtual const string &getType() const { return m_type; }
- /// Set the internal value
- virtual void set( float percentage );
- virtual float get() const { return m_value; }
- private:
- /// Variable type
- static const string m_type;
- /// Percent value
- float m_value;
- };
- #endif