/***************************************************************************** * volume.cpp ***************************************************************************** * Copyright (C) 2003 VideoLAN * $Id: volume.cpp,v 1.2 2004/01/11 17:12:17 asmax Exp $ * * Authors: Cyril Deguet     <asmax@via.ecp.fr> *          Olivier Teuli鑢e <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. *****************************************************************************/#include <stdio.h>  // snprintf#include <vlc/aout.h>#include "volume.hpp"Volume::Volume( intf_thread_t *pIntf ): VarPercent( pIntf ){    // Initial value    audio_volume_t val;    aout_VolumeGet( getIntf(), &val );    VarPercent::set( val / AOUT_VOLUME_MAX );}void Volume::set( float percentage ){    // Avoid looping forever...    if( (int)(get() * AOUT_VOLUME_MAX) !=        (int)(percentage * AOUT_VOLUME_MAX) )    {        VarPercent::set( percentage );        aout_VolumeSet( getIntf(), (int)(get() * AOUT_VOLUME_MAX) );    }}string Volume::getAsStringPercent() const{    int value = (int)(100. * VarPercent::get());    // 0 <= value <= 100, so we need 4 chars    char *str = new char[4];    snprintf( str, 4, "%d", value );    string ret = str;    delete[] str;    return ret;}