useroperations.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2003 by Istv醤 V醨adi
//
// This file is part of dxr3Player, a DVD player written specifically 
// for the DXR3 (aka Hollywood+) decoder card.

// 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  02111-1307  USA

#ifndef DXR3PLAYER_DVD_USEROPERATIONS_H
#define DXR3PLAYER_DVD_USEROPERATIONS_H
//------------------------------------------------------------------------------

#include <libmpdvdkit/ifo_types.h>

//------------------------------------------------------------------------------

namespace dvd {

//------------------------------------------------------------------------------

/**
 * The user operation flags.
 */
class UserOperations
{
public:
    /// Flag mask: time play or search
    static const size_t TIME_PLAY_SEARCH = 0x00000001;

    /// Flag mask: PTT play or search
    static const size_t PTT_PLAY_SEARCH = 0x00000002;

    /// Flag mask: title play
    static const size_t TITLE_PLAY = 0x00000004;

    /// Flag mask: stop
    static const size_t STOP = 0x00000008;

    /// Flag mask: go up
    static const size_t GOUP = 0x00000010;

    /// Flag mask: time or PTT search
    static const size_t TIME_PTT_SEARCH = 0x00000020;

    /// Flag mask: topPG or prevPG search
    static const size_t TOP_PREV_PG_SEARCH = 0x00000040;

    /// Flag mask: nextPG search
    static const size_t NEXT_PG_SEARCH = 0x00000080;

    /// Flag mask: forward scan
    static const size_t FORWARD_SCAN = 0x00000100;

    /// Flag mask: backward scan
    static const size_t BACKWARD_SCAN = 0x00000200;

    /// Flag mask: title menu call
    static const size_t MENU_TITLE = 0x00000400;

    /// Flag mask: root menu call
    static const size_t MENU_ROOT = 0x00000800;

    /// Flag mask: subpicture menu call
    static const size_t MENU_SUBPICTURE = 0x00001000;

    /// Flag mask: audio menu call
    static const size_t MENU_AUDIO = 0x00002000;

    /// Flag mask: angle menu call
    static const size_t MENU_ANGLE = 0x00004000;

    /// Flag mask: PTT menu call
    static const size_t MENU_PTT = 0x00008000;

    /// Flag mask: resume
    static const size_t RESUME = 0x00010000;

    /// Flag mask: button select or activate
    static const size_t BUTTON = 0x00020000;

    /// Flag mask: still off
    static const size_t STILL_OFF = 0x00040000;

    /// Flag mask: pause one
    static const size_t PAUSE_ON = 0x00080000;

    /// Flag mask: audio stream change
    static const size_t AUDIO_CHANGE = 0x00100000;

    /// Flag mask: subpicture stream change
    static const size_t SPU_CHANGE = 0x00200000;

    /// Flag mask: angle change
    static const size_t ANGLE_CHANGE = 0x00400000;

    /// Flag mask: Karaoke audio mix change
    static const size_t KARAOKE_MIX_CHANGE = 0x00800000;

    /// Flag mask: video presentation mode change
    static const size_t VIDEO_CHANGE = 0x01000000;

private:
    /**
     * The low level structure.
     */
    size_t flags;

public:
    /**
     * Construct the object from the given user operations structure.
     */
    explicit UserOperations(user_ops_t user_ops);
    
    /**
     * Check if any of the the given flags is set
     */
    bool isAnySet(size_t mask) const;

    /**
     * Check if all of the the given flags is set
     */
    bool isAllSet(size_t mask) const;

    /**
     * Add another mask to this one.
     */
    UserOperations& operator+=(const UserOperations& other);
};

//------------------------------------------------------------------------------
// Inline definitions
//------------------------------------------------------------------------------

inline bool UserOperations::isAnySet(size_t mask) const
{
    return (flags&mask)!=0;
}

//------------------------------------------------------------------------------

inline bool UserOperations::isAllSet(size_t mask) const
{
    return (flags&mask)==mask;
}

//------------------------------------------------------------------------------

inline UserOperations& UserOperations::operator+=(const UserOperations& other)
{
    flags |= other.flags;
    return *this;
}

//------------------------------------------------------------------------------

} /* namespace dvd */

//------------------------------------------------------------------------------
#endif // DXR3PLAYER_DVD_USEROPERATIONS_H

// Local variables:
// mode: c++
// End: