var_list.hpp
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上传日期:2020-07-06
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midi
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Unix_Linux
- /*****************************************************************************
- * var_list.hpp
- *****************************************************************************
- * Copyright (C) 2003 the VideoLAN team
- * $Id: d8d7f09cd92a79b5fee0d15e1ea5284ead4adb8f $
- *
- * 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_LIST_HPP
- #define VAR_LIST_HPP
- #include <list>
- #include "variable.hpp"
- #include "observer.hpp"
- #include "ustring.hpp"
- #include "var_percent.hpp"
- /// List variable
- class VarList: public Variable, public Subject<VarList>
- {
- public:
- VarList( intf_thread_t *pIntf );
- virtual ~VarList();
- /// Get the variable type
- virtual const string &getType() const { return m_type; }
- /// Add a pointer on a string in the list
- virtual void add( const UStringPtr &rcString );
- /// Remove the selected elements from the list
- virtual void delSelected();
- /// Remove all the elements from the list
- virtual void clear();
- /// Get the number of items in the list
- int size() const { return m_list.size(); }
- /// Type of an element in the list
- struct Elem_t
- {
- UStringPtr m_cString;
- bool m_selected;
- bool m_playing;
- Elem_t( const UStringPtr &rcString, bool selected = false, bool
- playing = false ):
- m_cString( rcString ), m_selected( selected ),
- m_playing( playing) {}
- };
- /// Iterators
- typedef list<Elem_t>::iterator Iterator;
- typedef list<Elem_t>::const_iterator ConstIterator;
- /// Beginning of the list
- Iterator begin() { return m_list.begin(); }
- ConstIterator begin() const { return m_list.begin(); }
- /// End of the list
- Iterator end() { return m_list.end(); }
- ConstIterator end() const { return m_list.end(); }
- /// Return an iterator on the n'th element of the list
- Iterator operator[]( int n );
- ConstIterator operator[]( int n ) const;
- /// Execute the action associated to this item
- virtual void action( Elem_t *pItem ) {}
- /// Get a reference on the position variable
- VarPercent &getPositionVar() const
- { return *((VarPercent*)m_cPosition.get()); }
- /// Get a counted pointer on the position variable
- const VariablePtr &getPositionVarPtr() const { return m_cPosition; }
- protected:
- /// List of elements
- list<Elem_t> m_list;
- private:
- /// Variable type
- static const string m_type;
- /// Position variable
- VariablePtr m_cPosition;
- };
- #endif