osdhandler.h

Linux下比较早的基于命令行的DVD播放器

//
// Copyright (c) 2005 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 OUTPUT_UNICHROME_OSDHANDLER_H
#define OUTPUT_UNICHROME_OSDHANDLER_H
//------------------------------------------------------------------------------

#include "output/osd/CommandBasedOSDHandler.h"

#include "unichrome/Font.h"
#include "unichrome/Icon.h"
#include "unichrome/PhysicalWindow.h"

#include "sched/TimeoutArray.h"

#include <inttypes.h>

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

namespace unichrome {

class Unichrome;

}

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

namespace output { namespace unichrome {

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

namespace osd {

class DVDInfoFrame;
class VolumeFrame;
class FrameTimeout;

}

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

/**
 * Unichrome OSD handler.
 */
class OSDHandler : public output::osd::CommandBasedOSDHandler
{
private:
    /**
     * The background color for fields.
     */
    static const uint32_t fieldBackgroundColor = 0x202e7680;

    /**
     * The unichrome device we are using.
     */
    ::unichrome::Unichrome& videoDevice;

    /**
     * The normal font.
     */
    ::unichrome::Font normalFont;

    /**
     * The frame for the DVD info display.
     */
    osd::DVDInfoFrame* dvdInfoFrame;

    /**
     * The frame for the volume display.
     */
    osd::VolumeFrame* volumeFrame;

    /**
     * The timeout array for the frames.
     */
    sched::TimeoutArray frameTimeouts;
    
public:
    /**
     * Construct the OSD handler for the given device.
     */
    OSDHandler(::unichrome::Unichrome& videoDevice);

    /**
     * Destroy the OSD handler.
     */
    ~OSDHandler();
    
    /**
     * Disable the DVD info. If shown, it will be hidden.
     */
    virtual void disableDVDInfo();

    /**
     * Perform the concrete operations.
     */
    virtual void run();

    /**
     * Update the position.
     */
    virtual void handleUpdateDVDPosition(const output::osd::DVDPosition& dvdPosition);

    /**
     * Update the languages
     */
    virtual void handleUpdateDVDLanguages(unsigned audioLanguageCode,
                                          unsigned spuLanguageCode);

    /**
     * Update the volume
     */
    virtual void handleUpdateVolume(unsigned volume);

    /**
     * Handle a simple command.
     */
    virtual void handleSimpleCommand(output::osd::SimpleCommand::type_t type);

private:
    /**
     * @see CommandBasedOSDHandler::finalizeUpdates
     */
    virtual millis_t finalizeUpdates();

    /**
     * @see CommandBasedOSDHandler::handleTimeout
     */
    virtual millis_t handleTimeout();

    /**
     * Show the DVD info frame with the given timeout. If the volume
     * display is visible, and its position overlaps that of the DVD info
     * frame, it will be hidden.
     */
    void showDVDInfoFrame(millis_t timeout);

    /**
     * Show the volume frame with the given timeout. If the DVD info
     * frame is visible, it will be shown above it, otherwise it will
     * be shown at the bottom of the screen.
     */
    void showVolumeFrame(millis_t timeout);
};

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

} /* namespace output::unichrome */ } /* namespace output */

//------------------------------------------------------------------------------
#endif // OUTPUT_UNICHROME_OSDHANDLER_H

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