/*****************************************************************************
 * timer.cpp : wxWindows plugin for vlc
 *****************************************************************************
 * Copyright (C) 2000-2001 VideoLAN
 * $Id: timer.cpp,v 1.13 2003/04/17 14:00:44 anil Exp $
 *
 * Authors: Gildas Bazin <gbazin@netcourrier.com>
 *
 * 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.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>                                      /* malloc(), free() */
#include <errno.h>                                                 /* ENOMEM */
#include <string.h>                                            /* strerror() */
#include <stdio.h>

#include <vlc/vlc.h>

#ifdef WIN32                                                 /* mingw32 hack */
#undef Yield
#undef CreateDialog
#endif

/* Let vlc take care of the i18n stuff */
#define WXINTL_NO_GETTEXT_MACRO

#include <wx/wxprec.h>
#include <wx/wx.h>
#include <wx/timer.h>

#include <vlc/intf.h>

#include "wxwindows.h"

void DisplayStreamDate( wxControl *, intf_thread_t *, int );

/*****************************************************************************
 * Constructor.
 *****************************************************************************/
Timer::Timer( intf_thread_t *_p_intf, Interface *_p_main_interface )
{
    p_intf = _p_intf;
    p_main_interface = _p_main_interface;
    i_old_playing_status = PAUSE_S;

    Start( 100 /*milliseconds*/, wxTIMER_CONTINUOUS );
}

Timer::~Timer()
{
}

/*****************************************************************************
 * Private methods.
 *****************************************************************************/
/*****************************************************************************
 * wxModeManage: actualise the aspect of the interface whenever the input
 * changes.
 *****************************************************************************
 * The lock has to be taken before you call the function.
 *****************************************************************************/
static int wxModeManage( intf_thread_t * p_intf )
{
    return 0;
}

/*****************************************************************************
 * wxSetupMenus: function that generates title/chapter/audio/subpic
 * menus with help from preceding functions
 *****************************************************************************
 * Function called with the lock on stream
 *****************************************************************************/
static int wxSetupMenus( intf_thread_t * p_intf )
{
    return 0;
}

/*****************************************************************************
 * Manage: manage main thread messages
 *****************************************************************************
 * In this function, called approx. 10 times a second, we check what the
 * main program wanted to tell us.
 *****************************************************************************/
void Timer::Notify()
{
    vlc_bool_t b_pace_control;

    vlc_mutex_lock( &p_intf->change_lock );

    /* If the "display popup" flag has changed */
    if( p_intf->b_menu_change )
    {
        p_main_interface->p_popup_menu =
            new PopupMenu( p_intf, p_main_interface );
        p_intf->b_menu_change = 0;
    }

    /* Update the log window */
    p_intf->p_sys->p_messages_window->UpdateLog();

    /* Update the playlist */
    p_intf->p_sys->p_playlist_window->Manage();

    /* Update the fileinfo windows */
    p_intf->p_sys->p_fileinfo_window->UpdateFileInfo();
    
    /* Update the input */
    if( p_intf->p_sys->p_input == NULL )
    {
        p_intf->p_sys->p_input = (input_thread_t *)vlc_object_find( p_intf,
                                                       VLC_OBJECT_INPUT,
                                                       FIND_ANYWHERE );

        /* Show slider */
        if( p_intf->p_sys->p_input )
        {
	    //if( p_intf->p_sys->p_input->stream.b_seekable )
            {
                p_main_interface->slider_frame->Show();
                p_main_interface->frame_sizer->Show(
                    p_main_interface->slider_frame );
                p_main_interface->frame_sizer->Layout();
                p_main_interface->frame_sizer->Fit( p_main_interface );
            }

            p_main_interface->statusbar->SetStatusText(
                p_intf->p_sys->p_input->psz_source, 1 );

            p_main_interface->TogglePlayButton( PLAYING_S );
            i_old_playing_status = PLAYING_S;
        }

        /* control buttons for free pace streams */
        b_pace_control = p_intf->p_sys->p_input->stream.b_pace_control;

    }
    else if( p_intf->p_sys->p_input->b_dead )
    {
        /* Hide slider */
        //if( p_intf->p_sys->p_input->stream.b_seekable )
        {
            p_main_interface->slider_frame->Hide();
            p_main_interface->frame_sizer->Hide(
                p_main_interface->slider_frame );
            p_main_interface->frame_sizer->Layout();
            p_main_interface->frame_sizer->Fit( p_main_interface );

            p_main_interface->TogglePlayButton( PAUSE_S );
            i_old_playing_status = PAUSE_S;
        }

        p_main_interface->statusbar->SetStatusText( "", 1 );

        vlc_object_release( p_intf->p_sys->p_input );
        p_intf->p_sys->p_input = NULL;
    }



    if( p_intf->p_sys->p_input )
    {
        input_thread_t *p_input = p_intf->p_sys->p_input;

        vlc_mutex_lock( &p_input->stream.stream_lock );

        if( !p_input->b_die )
        {
            /* New input or stream map change */
            p_intf->p_sys->b_playing = 1;
#if 0
            if( p_input->stream.b_changed )
            {
                wxModeManage( p_intf );
                wxSetupMenus( p_intf );
                p_intf->p_sys->b_playing = 1;

                p_main_interface->TogglePlayButton( PLAYING_S );
                i_old_playing_status = PLAYING_S;
            }
#endif

            /* Manage the slider */
            if( p_input->stream.b_seekable && p_intf->p_sys->b_playing )
            {
                stream_position_t position;

                /* Update the slider if the user isn't dragging it. */
                if( p_intf->p_sys->b_slider_free )
                {
                    /* Update the value */
                    vlc_mutex_unlock( &p_input->stream.stream_lock );
                    input_Tell( p_input, &position );
                    vlc_mutex_lock( &p_input->stream.stream_lock );
                    if( position.i_size )
                    {
                        p_intf->p_sys->i_slider_pos =
                        ( SLIDER_MAX_POS * position.i_tell ) / position.i_size;

                        p_main_interface->slider->SetValue(
                            p_intf->p_sys->i_slider_pos );

                        DisplayStreamDate( p_main_interface->slider_box,p_intf,
                                           p_intf->p_sys->i_slider_pos );
                    }
                }
            }

            if( p_intf->p_sys->i_part !=
                p_input->stream.p_selected_area->i_part )
            {
                p_intf->p_sys->b_chapter_update = 1;
                wxSetupMenus( p_intf );
            }

            /* Manage Playing status */
            if( i_old_playing_status != p_input->stream.control.i_status )
            {
                if( p_input->stream.control.i_status == PAUSE_S )
                {
                    p_main_interface->TogglePlayButton( PAUSE_S );
                }
                else
                {
                    p_main_interface->TogglePlayButton( PLAYING_S );
                }
                i_old_playing_status = p_input->stream.control.i_status;
            }
        }

        vlc_mutex_unlock( &p_input->stream.stream_lock );
    }
    else if( p_intf->p_sys->b_playing && !p_intf->b_die )
    {
        wxModeManage( p_intf );
        p_intf->p_sys->b_playing = 0;
        p_main_interface->TogglePlayButton( PAUSE_S );
        i_old_playing_status = PAUSE_S;
    }

    if( p_intf->b_die )
    {
        vlc_mutex_unlock( &p_intf->change_lock );

        /* Prepare to die, young Skywalker */
        p_main_interface->Close(TRUE);
        return;
    }

    vlc_mutex_unlock( &p_intf->change_lock );
}

/*****************************************************************************
 * DisplayStreamDate: display stream date
 *****************************************************************************
 * This function displays the current date related to the position in
 * the stream. It is called whenever the slider changes its value.
 * The lock has to be taken before you call the function.
 *****************************************************************************/
void DisplayStreamDate( wxControl *p_slider_frame, intf_thread_t * p_intf ,
                        int i_pos )
{
    if( p_intf->p_sys->p_input )
    {
#define p_area p_intf->p_sys->p_input->stream.p_selected_area
        char psz_time[ OFFSETTOTIME_MAX_SIZE ];

        p_slider_frame->SetLabel(
            input_OffsetToTime( p_intf->p_sys->p_input,
                                psz_time,
                                p_area->i_size * i_pos / SLIDER_MAX_POS ) );
#undef p_area
     }
}
