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/*****************************************************************************
* var_list.hpp
*****************************************************************************
* Copyright (C) 2003 VideoLAN
* $Id$
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111, 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