menu.c

来自「VLC媒体播放程序」· C语言 代码 · 共 1,580 行 · 第 1/4 页

/*****************************************************************************
 * menu.c : functions to handle menu items.
 *****************************************************************************
 * Copyright (C) 2000, 2001 VideoLAN
 * $Id: menu.c,v 1.13 2003/12/22 14:32:56 sam Exp $
 *
 * Authors: Sam Hocevar <[e-mail]>
 *          St閜hane Borel <[e-mail]>
 *          Johan Bilien <[e-mail]>
 *          Laurent Aimar <[e-mail]>
 *
 * 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 <sys/types.h>                                              /* off_t */
#include <stdlib.h>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/intf.h>
#include <vlc/aout.h>
#include <vlc/vout.h>

#ifdef MODULE_NAME_IS_gnome
#   include <gnome.h>
#else
#   include <gtk/gtk.h>
#endif

#include <string.h>

#include "gtk_callbacks.h"
#include "gtk_interface.h"
#include "gtk_support.h"

#include "playlist.h"
#include "common.h"

/*
 * Local Prototypes
 */
static gint GtkLanguageMenus( gpointer , GtkWidget *, es_descriptor_t *, gint,
                        void(*pf_toggle )( GtkCheckMenuItem *, gpointer ) );

void GtkMenubarAudioToggle   ( GtkCheckMenuItem *, gpointer );
void GtkPopupAudioToggle     ( GtkCheckMenuItem *, gpointer );
void GtkMenubarSubtitleToggle( GtkCheckMenuItem *, gpointer );
void GtkPopupSubtitleToggle  ( GtkCheckMenuItem *, gpointer );
static gint GtkTitleMenu( gpointer, GtkWidget *,
                    void(*pf_toggle )( GtkCheckMenuItem *, gpointer ) );
static gint GtkRadioMenu( intf_thread_t *, GtkWidget *, GSList *,
                          char *, int, int, int,
                   void( *pf_toggle )( GtkCheckMenuItem *, gpointer ) );

static void GtkMenubarDeinterlaceToggle( GtkCheckMenuItem * menuitem, gpointer user_data );
static void GtkPopupDeinterlaceToggle( GtkCheckMenuItem * menuitem, gpointer user_data );
static gint GtkDeinterlaceMenus( gpointer          p_data,
                                 GtkWidget *       p_root,
                                 void(*pf_toggle )( GtkCheckMenuItem *, gpointer ) );

gint GtkSetupMenus( intf_thread_t * p_intf );

/****************************************************************************
 * Gtk*Toggle: callbacks to toggle the value of a checkmenuitem
 ****************************************************************************
 * We need separate functions for menubar and popup here since we can't use
 * user_data to transmit intf_* and we need to refresh the other menu.
 ****************************************************************************/

#define GTKLANGTOGGLE( window, menu, type, callback, b_update )         \
    intf_thread_t *         p_intf;                                     \
    GtkWidget *             p_menu;                                     \
    es_descriptor_t *       p_es;                                       \
                                                                        \
    p_intf = GtkGetIntf( menuitem );                                    \
                                                                        \
    if( !p_intf->p_sys->b_update )                                      \
    {                                                                   \
        p_menu = GTK_WIDGET( gtk_object_get_data(                       \
                   GTK_OBJECT( p_intf->p_sys->window ), (menu) ) );     \
        p_es = (es_descriptor_t*)user_data;                             \
                                                                        \
        input_ToggleES( p_intf->p_sys->p_input,                         \
                        p_es, menuitem->active );                       \
                                                                        \
        p_intf->p_sys->b_update = menuitem->active;                     \
                                                                        \
        if( p_intf->p_sys->b_update )                                   \
        {                                                               \
            GtkLanguageMenus( p_intf, p_menu, p_es, type, callback );   \
        }                                                               \
                                                                        \
        p_intf->p_sys->b_update = VLC_FALSE;                            \
    }

/*
 * Audio
 */

void GtkMenubarAudioToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKLANGTOGGLE( p_popup, "popup_language", AUDIO_ES,
                   GtkPopupAudioToggle, b_audio_update );
}

void GtkPopupAudioToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKLANGTOGGLE( p_window, "menubar_audio", AUDIO_ES,
                   GtkMenubarAudioToggle, b_audio_update );
}

/*
 * Subtitles
 */

void GtkMenubarSubtitleToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKLANGTOGGLE( p_popup, "popup_subpictures", SPU_ES,
                   GtkPopupSubtitleToggle, b_spu_update );
}

void GtkPopupSubtitleToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKLANGTOGGLE( p_window, "menubar_subpictures", SPU_ES,
                   GtkMenubarSubtitleToggle, b_spu_update );
}

#undef GTKLANGTOGGLE

/*
 * Navigation
 */

void GtkPopupNavigationToggle( GtkCheckMenuItem * menuitem,
                               gpointer user_data )
{
    intf_thread_t * p_intf = GtkGetIntf( menuitem );

    if( menuitem->active &&
        !p_intf->p_sys->b_title_update &&
        !p_intf->p_sys->b_chapter_update )
    {
        input_area_t   *p_area;

        guint i_title   = DATA2TITLE( user_data );
        guint i_chapter = DATA2CHAPTER( user_data );

        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        p_area = p_intf->p_sys->p_input->stream.p_selected_area;

        i_title = __MIN( i_title,
                         p_intf->p_sys->p_input->stream.i_area_nb - 1 );
        i_title = __MAX( i_title, 1 );

        if( p_area != p_intf->p_sys->p_input->stream.pp_areas[i_title] )
        {
            p_area = p_intf->p_sys->p_input->stream.pp_areas[i_title];
            p_intf->p_sys->b_title_update = VLC_TRUE;
        }

        i_chapter = __MIN( i_chapter, p_area->i_part_nb - 1 );
        i_chapter = __MAX( i_chapter, 1 );
        p_area->i_part = i_chapter;

        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, (input_area_t*)p_area );

        p_intf->p_sys->b_chapter_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );
    }
}

/*
 * Program
 */
#define GTKPROGRAMTOGGLE( )                                                 \
    intf_thread_t * p_intf = GtkGetIntf( menuitem );                        \
                                                                            \
    if( menuitem->active && !p_intf->p_sys->b_program_update )              \
    {                                                                       \
        int i_program_id = (ptrdiff_t)user_data;                            \
                                                                            \
        input_ChangeProgram( p_intf->p_sys->p_input, i_program_id );        \
                                                                            \
        p_intf->p_sys->b_program_update = VLC_TRUE;                         \
                                                                            \
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );      \
        GtkSetupMenus( p_intf );                                            \
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );    \
                                                                            \
        p_intf->p_sys->b_program_update = VLC_FALSE;                        \
                                                                            \
        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );       \
    }

void GtkMenubarProgramToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKPROGRAMTOGGLE( );
}

void GtkPopupProgramToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GTKPROGRAMTOGGLE( );
}

/*
 * Title
 */

void GtkMenubarTitleToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    intf_thread_t * p_intf = GtkGetIntf( menuitem );

    if( menuitem->active && !p_intf->p_sys->b_title_update )
    {
        guint i_title = (ptrdiff_t)user_data;

        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        i_title = __MIN( i_title,
                         p_intf->p_sys->p_input->stream.i_area_nb - 1 );
        i_title = __MAX( i_title, 1 );
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input,
                          p_intf->p_sys->p_input->stream.pp_areas[i_title] );

        p_intf->p_sys->b_title_update = VLC_TRUE;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkSetupMenus( p_intf );
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );
        p_intf->p_sys->b_title_update = VLC_FALSE;

        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );
    }
}

/*
 * Chapter
 */

void GtkMenubarChapterToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    intf_thread_t * p_intf;
    input_area_t *  p_area;
    guint           i_chapter;
    GtkWidget *     p_popup_menu;

    p_intf    = GtkGetIntf( menuitem );
    p_area    = p_intf->p_sys->p_input->stream.p_selected_area;
    i_chapter = (ptrdiff_t)user_data;

    if( menuitem->active && !p_intf->p_sys->b_chapter_update )
    {
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        i_chapter = __MIN( i_chapter, p_area->i_part_nb - 1 );
        i_chapter = __MAX( i_chapter, 1 );
        p_area->i_part = i_chapter;
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        input_ChangeArea( p_intf->p_sys->p_input, (input_area_t*)p_area );

        p_intf->p_sys->b_chapter_update = VLC_TRUE;
        p_popup_menu = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
                             p_intf->p_sys->p_popup ), "popup_navigation" ) );

        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );
        GtkTitleMenu( p_intf, p_popup_menu, GtkPopupNavigationToggle );
        vlc_mutex_unlock( &p_intf->p_sys->p_input->stream.stream_lock );

        p_intf->p_sys->b_chapter_update = VLC_FALSE;

        input_SetStatus( p_intf->p_sys->p_input, INPUT_STATUS_PLAY );
    }
}


static void GtkPopupObjectToggle( GtkCheckMenuItem * menuitem,
    gpointer user_data, int i_object_type, char *psz_variable )
{
    intf_thread_t   *p_intf = GtkGetIntf( menuitem );
    GtkLabel        *p_label;

    p_label = GTK_LABEL( ( GTK_BIN( menuitem )->child ) );

    if( menuitem->active && !p_intf->p_sys->b_aout_update &&
        !p_intf->p_sys->b_vout_update )
    {
        vlc_object_t * p_obj;

        p_obj = (vlc_object_t *)vlc_object_find( p_intf, i_object_type,
                                                  FIND_ANYWHERE );
        if( p_obj )
        {
            vlc_value_t val;

            if( user_data )
            {
                val = (vlc_value_t)user_data;
            }
            else
            {
                gtk_label_get( p_label, &val.psz_string );
            }

            if( var_Set( p_obj, psz_variable, val ) < 0 )
            {
                msg_Warn( p_obj, "cannot set variable (%s)", val.psz_string );
            }
            vlc_object_release( p_obj );
        }
    }
}
static void GtkPopupAoutChannelsToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GtkPopupObjectToggle( menuitem, user_data, VLC_OBJECT_AOUT, "audio-channels" );
}

static void GtkPopupAoutDeviceToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GtkPopupObjectToggle( menuitem, user_data, VLC_OBJECT_AOUT, "audio-device" );
}


static void GtkPopupVoutDeviceToggle( GtkCheckMenuItem * menuitem, gpointer user_data )
{
    GtkPopupObjectToggle( menuitem, user_data, VLC_OBJECT_VOUT, "video-device" );
}


static void GtkDeinterlaceUpdate( intf_thread_t *p_intf, char *psz_mode )
{
    char *psz_filter;
    unsigned int  i;

    psz_filter = config_GetPsz( p_intf, "filter" );

    if( !strcmp( psz_mode, "None" ) )
    {
        config_PutPsz( p_intf, "filter", "" );
    }
    else
    {
        if( !psz_filter || !*psz_filter )
        {
            config_PutPsz( p_intf, "filter", "deinterlace" );
        }
        else
        {
            if( strstr( psz_filter, "deinterlace" ) == NULL )
            {
                psz_filter = realloc( psz_filter, strlen( psz_filter ) + 20 );
                strcat( psz_filter, ",deinterlace" );
            }
            config_PutPsz( p_intf, "filter", psz_filter );
        }
    }

    if( psz_filter )
        free( psz_filter );

    /* now restart all video stream */
    if( p_intf->p_sys->p_input )
    {
        vout_thread_t *p_vout;
        vlc_mutex_lock( &p_intf->p_sys->p_input->stream.stream_lock );

        /* Warn the vout we are about to change the filter chain */
        p_vout = vlc_object_find( p_intf, VLC_OBJECT_VOUT,
                                  FIND_ANYWHERE );
        if( p_vout )
        {
            p_vout->b_filter_change = VLC_TRUE;
            vlc_object_release( p_vout );
        }