menus.cpp

video linux conference

        ppsz_varnames[i] = "visual";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "equalizer";
        pi_objects[i++] = p_object->i_object_id;
        vlc_object_release( p_object );
    }

    /* Build menu */
    Menu *p_vlc_menu = (Menu *)p_menu;
    if( !p_vlc_menu )
        p_vlc_menu = new Menu( _p_intf, AudioMenu_Events );
    else
        p_vlc_menu->Clear();

    p_vlc_menu->Populate( i, ppsz_varnames, pi_objects );

    return p_vlc_menu;
}

wxMenu *VideoMenu( intf_thread_t *_p_intf, wxWindow *p_parent, wxMenu *p_menu )
{
#define MAX_VIDEO_ITEMS 15

    vlc_object_t *p_object;
    char *ppsz_varnames[MAX_VIDEO_ITEMS];
    int pi_objects[MAX_VIDEO_ITEMS];
    int i = 0;

    /* Initializations */
    memset( pi_objects, 0, MAX_VIDEO_ITEMS * sizeof(int) );

    p_object = (vlc_object_t *)vlc_object_find( _p_intf, VLC_OBJECT_INPUT,
                                                FIND_ANYWHERE );
    if( p_object != NULL )
    {
        ppsz_varnames[i] = "video-es";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "spu-es";
        pi_objects[i++] = p_object->i_object_id;
        vlc_object_release( p_object );
    }

    p_object = (vlc_object_t *)vlc_object_find( _p_intf, VLC_OBJECT_VOUT,
                                                FIND_ANYWHERE );
    if( p_object != NULL )
    {
        vlc_object_t *p_dec_obj;

        ppsz_varnames[i] = "fullscreen";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "zoom";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "deinterlace";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "aspect-ratio";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "crop";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "video-on-top";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "directx-wallpaper";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "video-snapshot";
        pi_objects[i++] = p_object->i_object_id;

        p_dec_obj = (vlc_object_t *)vlc_object_find( p_object,
                                                     VLC_OBJECT_DECODER,
                                                     FIND_PARENT );
        if( p_dec_obj != NULL )
        {
            ppsz_varnames[i] = "ffmpeg-pp-q";
            pi_objects[i++] = p_dec_obj->i_object_id;
            vlc_object_release( p_dec_obj );
        }

        vlc_object_release( p_object );
    }

    /* Build menu */
    Menu *p_vlc_menu = (Menu *)p_menu;
    if( !p_vlc_menu )
        p_vlc_menu = new Menu( _p_intf, VideoMenu_Events );
    else
        p_vlc_menu->Clear();

    p_vlc_menu->Populate( i, ppsz_varnames, pi_objects );

    return p_vlc_menu;
}

wxMenu *NavigMenu( intf_thread_t *_p_intf, wxWindow *p_parent, wxMenu *p_menu )
{
#define MAX_NAVIG_ITEMS 15

    vlc_object_t *p_object;
    char *ppsz_varnames[MAX_NAVIG_ITEMS];
    int pi_objects[MAX_NAVIG_ITEMS];
    int i = 0;

    /* Initializations */
    memset( pi_objects, 0, MAX_NAVIG_ITEMS * sizeof(int) );

    p_object = (vlc_object_t *)vlc_object_find( _p_intf, VLC_OBJECT_INPUT,
                                                FIND_ANYWHERE );
    if( p_object != NULL )
    {
        ppsz_varnames[i] = "bookmark";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "title";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "chapter";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "program";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "navigation";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "dvd_menus";
        pi_objects[i++] = p_object->i_object_id;

        ppsz_varnames[i] = "prev-title";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "next-title";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "prev-chapter";
        pi_objects[i++] = p_object->i_object_id;
        ppsz_varnames[i] = "next-chapter";
        pi_objects[i++] = p_object->i_object_id;

        vlc_object_release( p_object );
    }

    /* Build menu */
    Menu *p_vlc_menu = (Menu *)p_menu;
    if( !p_vlc_menu )
        p_vlc_menu = new Menu( _p_intf, NavigMenu_Events );
    else
        p_vlc_menu->Clear();

    p_vlc_menu->Populate( i, ppsz_varnames, pi_objects );

    return p_vlc_menu;
}

wxMenu *SettingsMenu( intf_thread_t *_p_intf, wxWindow *p_parent,
                      wxMenu *p_menu )
{
#define MAX_SETTINGS_ITEMS 10

    vlc_object_t *p_object;
    char *ppsz_varnames[MAX_SETTINGS_ITEMS];
    int pi_objects[MAX_SETTINGS_ITEMS];
    int i = 0;

    /* Initializations */
    memset( pi_objects, 0, MAX_SETTINGS_ITEMS * sizeof(int) );

    p_object = (vlc_object_t *)vlc_object_find( _p_intf, VLC_OBJECT_INTF,
                                                FIND_PARENT );
    if( p_object != NULL )
    {
#if (wxCHECK_VERSION(2,5,0))
        ppsz_varnames[i] = "intf-switch";
        pi_objects[i++] = p_object->i_object_id;
#endif
        ppsz_varnames[i] = "intf-add";
        pi_objects[i++] = p_object->i_object_id;
        vlc_object_release( p_object );
    }

    /* Build menu */
    Menu *p_vlc_menu = (Menu *)p_menu;
    if( !p_vlc_menu )
        p_vlc_menu = new Menu( _p_intf, SettingsMenu_Events );
    else
        p_vlc_menu->Clear();

    p_vlc_menu->Populate( i, ppsz_varnames, pi_objects );

    return p_vlc_menu;
}

/*****************************************************************************
 * Constructor.
 *****************************************************************************/
Menu::Menu( intf_thread_t *_p_intf, int _i_start_id ) : wxMenu( )
{
    /* Initializations */
    p_intf = _p_intf;
    i_start_id = _i_start_id;
}

Menu::~Menu()
{
}

/*****************************************************************************
 * Public methods.
 *****************************************************************************/
void Menu::Populate( int i_count, char **ppsz_varnames, int *pi_objects )
{
    vlc_object_t *p_object;
    vlc_bool_t b_section_empty = VLC_FALSE;
    int i;

    i_item_id = i_start_id;

    for( i = 0; i < i_count; i++ )
    {
        if( !ppsz_varnames[i] )
        {
            if( b_section_empty )
            {
                Append( MenuDummy_Event + i, wxU(_("Empty")) );
                Enable( MenuDummy_Event + i, FALSE );
            }

            AppendSeparator();
            b_section_empty = VLC_TRUE;
            continue;
        }

        if( !pi_objects[i] )
        {
            Append( MenuDummy_Event, wxU(ppsz_varnames[i]) );
            b_section_empty = VLC_FALSE;
            continue;
        }

        p_object = (vlc_object_t *)vlc_object_get( p_intf, pi_objects[i] );
        if( p_object == NULL ) continue;

        b_section_empty = VLC_FALSE;
        CreateMenuItem( this, ppsz_varnames[i], p_object );
        vlc_object_release( p_object );
    }

    /* Special case for empty menus */
    if( GetMenuItemCount() == 0 || b_section_empty )
    {
        Append( MenuDummy_Event + i, wxU(_("Empty")) );
        Enable( MenuDummy_Event + i, FALSE );
    }
}

/* Work-around helper for buggy wxGTK */
static void RecursiveDestroy( wxMenu *menu )
{
    wxMenuItemList::Node *node = menu->GetMenuItems().GetFirst();
    for( ; node; )
    {
        wxMenuItem *item = node->GetData();
        node = node->GetNext();

        /* Delete the submenus */
        wxMenu *submenu = item->GetSubMenu();
        if( submenu )
        {
            RecursiveDestroy( submenu );
        }
        menu->Delete( item );
    }
}

void Menu::Clear( )
{
    RecursiveDestroy( this );
}

/*****************************************************************************
 * Private methods.
 *****************************************************************************/
static bool IsMenuEmpty( char *psz_var, vlc_object_t *p_object,
                         bool b_root = TRUE )
{
    vlc_value_t val, val_list;
    int i_type, i_result, i;

    /* Check the type of the object variable */
    i_type = var_Type( p_object, psz_var );

    /* Check if we want to display the variable */
    if( !(i_type & VLC_VAR_HASCHOICE) ) return FALSE;

    var_Change( p_object, psz_var, VLC_VAR_CHOICESCOUNT, &val, NULL );
    if( val.i_int == 0 ) return TRUE;

    if( (i_type & VLC_VAR_TYPE) != VLC_VAR_VARIABLE )
    {
        if( val.i_int == 1 && b_root ) return TRUE;
        else return FALSE;
    }

    /* Check children variables in case of VLC_VAR_VARIABLE */
    if( var_Change( p_object, psz_var, VLC_VAR_GETLIST, &val_list, NULL ) < 0 )
    {
        return TRUE;
    }

    for( i = 0, i_result = TRUE; i < val_list.p_list->i_count; i++ )
    {
        if( !IsMenuEmpty( val_list.p_list->p_values[i].psz_string,
                          p_object, FALSE ) )
        {
            i_result = FALSE;
            break;
        }
    }

    /* clean up everything */
    var_Change( p_object, psz_var, VLC_VAR_FREELIST, &val_list, NULL );

    return i_result;
}

void Menu::CreateMenuItem( wxMenu *menu, char *psz_var,
                           vlc_object_t *p_object )
{
    wxMenuItemExt *menuitem;
    vlc_value_t val, text;
    int i_type;

    /* Check the type of the object variable */
    i_type = var_Type( p_object, psz_var );

    switch( i_type & VLC_VAR_TYPE )
    {
    case VLC_VAR_VOID:
    case VLC_VAR_BOOL:
    case VLC_VAR_VARIABLE:
    case VLC_VAR_STRING:
    case VLC_VAR_INTEGER:
    case VLC_VAR_FLOAT:
        break;
    default:
        /* Variable doesn't exist or isn't handled */
        return;
    }

    /* Make sure we want to display the variable */
    if( IsMenuEmpty( psz_var, p_object ) ) return;

    /* Get the descriptive name of the variable */
    var_Change( p_object, psz_var, VLC_VAR_GETTEXT, &text, NULL );

    if( i_type & VLC_VAR_HASCHOICE )
    {
        menu->Append( MenuDummy_Event,
                      wxU(text.psz_string ? text.psz_string : psz_var),