playlistinfo.m

uclinux 下的vlc播放器源代码

        [o_sent_bytes_txt setStringValue: [NSString stringWithFormat: @"%8.0f kB", \
            (float)(p_item->input.p_stats->i_sent_bytes)/1000]];
        [o_sent_bitrate_txt setStringValue: [NSString stringWithFormat: \
            @"%6.0f kb/s", (float)(p_item->input.p_stats->f_send_bitrate*8)*1000]];

        /* Audio */
        [o_audio_decoded_txt setStringValue: [NSString stringWithFormat: @"%5i", \
            p_item->input.p_stats->i_decoded_audio]];
        [o_played_abuffers_txt setStringValue: [NSString stringWithFormat: @"%5i", \
            p_item->input.p_stats->i_played_abuffers]];
        [o_lost_abuffers_txt setStringValue: [NSString stringWithFormat: @"%5i", \
            p_item->input.p_stats->i_lost_abuffers]];

        vlc_mutex_unlock( &p_item->input.p_stats->lock );
    }
}

- (IBAction)infoCancel:(id)sender
{
    [self windowShouldClose: nil];
    [o_info_window orderOut: self];
}


- (IBAction)infoOk:(id)sender
{
    intf_thread_t * p_intf = VLCIntf;
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                          FIND_ANYWHERE );
    vlc_value_t val;

    if( [self isItemInPlaylist: p_item] )
    {
        vlc_mutex_lock( &p_item->input.lock );

        p_item->input.psz_uri = strdup( [[o_uri_txt stringValue] UTF8String] );
        p_item->input.psz_name = strdup( [[o_title_txt stringValue] UTF8String] );
        vlc_mutex_unlock( &p_item->input.lock );
        vlc_input_item_AddInfo( &p_item->input, _("Meta-information"), _("Artist"), [[o_author_txt stringValue] UTF8String]);
        
        val.b_bool = VLC_TRUE;
        var_Set( p_playlist, "intf-change", val );
    }
    vlc_object_release( p_playlist );
    [self windowShouldClose: nil];
    [o_info_window orderOut: self];
}

- (playlist_item_t *)getItem
{
    return p_item;
}

- (BOOL)isItemInPlaylist:(playlist_item_t *)p_local_item
{
    intf_thread_t * p_intf = VLCIntf;
    playlist_t * p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
                                          FIND_ANYWHERE );
    int i;

    if( p_playlist == NULL )
    {
        return NO;
    }

    for( i = 0 ; i < p_playlist->i_all_size ; i++ )
    {
        if( p_playlist->pp_all_items[i] == p_local_item )
        {
            vlc_object_release( p_playlist );
            return YES;
        }
    }
    vlc_object_release( p_playlist );
    return NO;
}

- (BOOL)windowShouldClose:(id)sender
{
    if( o_statUpdateTimer )
    {
        [o_statUpdateTimer invalidate];
        [o_statUpdateTimer release];
    }
    return YES;
}

@end

@implementation VLCInfo (NSMenuValidation)

- (BOOL)validateMenuItem:(NSMenuItem *)o_mi
{
    BOOL bEnabled = TRUE;

    intf_thread_t * p_intf = VLCIntf;
    input_thread_t * p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
                                                       FIND_ANYWHERE );

    if( [[o_mi title] isEqualToString: _NS("Information")] )
    {
        if( p_input == NULL )
        {
            bEnabled = FALSE;
        }
    }
    if( p_input ) vlc_object_release( p_input );

    return( bEnabled );
}

@end

@implementation VLCInfo (NSTableDataSource)

- (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item
{
    return (item == nil) ? [[VLCInfoTreeItem rootItem] numberOfChildren] : [item numberOfChildren];
}

- (BOOL)outlineView:(NSOutlineView *)outlineView isItemExpandable:(id)item {
    return ([item numberOfChildren] > 0);
}

- (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item
{
    return (item == nil) ? [[VLCInfoTreeItem rootItem] childAtIndex:index] : (id)[item childAtIndex:index];
}

- (id)outlineView:(NSOutlineView *)outlineView objectValueForTableColumn:(NSTableColumn *)tableColumn byItem:(id)item
{
    if ([[tableColumn identifier] isEqualToString:@"0"])
    {
        return (item == nil) ? @"" : (id)[item getName];
    }
    else
    {
        return (item == nil) ? @"" : (id)[item getValue];
    }
}


@end

@implementation VLCInfoTreeItem

static VLCInfoTreeItem *o_root_item = nil;

#define IsALeafNode ((id)-1)

- (id)initWithName: (NSString *)o_item_name value: (NSString *)o_item_value ID: (int)i_id parent:(VLCInfoTreeItem *)o_parent_item
{
    self = [super init];

    if( self != nil )
    {
        o_name = [o_item_name copy];
        o_value = [o_item_value copy];
        i_object_id = i_id;
        o_parent = o_parent_item;
        if( [[VLCMain sharedInstance] getInfo] != nil )
            p_item = [[[VLCMain sharedInstance] getInfo] getItem];
        else
            p_item = NULL;
    }
    return( self );
}

+ (VLCInfoTreeItem *)rootItem {
    if (o_root_item == nil) o_root_item = [[VLCInfoTreeItem alloc] initWithName:@"main" value: @"" ID: 0 parent:nil];
    return o_root_item;
}

- (void)dealloc
{
    if( o_children != IsALeafNode ) [o_children release];
    [o_name release];
    [super dealloc];
}

/* Creates and returns the array of children
 * Loads children incrementally */
- (NSArray *)children
{
    if (o_children == NULL)
    {
        int i;

        if( [[[VLCMain sharedInstance] getInfo] isItemInPlaylist: p_item] )
        {
            if( self == o_root_item )
            {
                vlc_mutex_lock( &p_item->input.lock );
                o_children = [[NSMutableArray alloc] initWithCapacity:
                                                p_item->input.i_categories];
                for (i = 0 ; i < p_item->input.i_categories ; i++)
                {
                    [o_children addObject:[[VLCInfoTreeItem alloc]
                        initWithName: [NSString stringWithUTF8String:
                            p_item->input.pp_categories[i]->psz_name]
                        value: @""
                        ID: i
                        parent: self]];
                }
                vlc_mutex_unlock( &p_item->input.lock );
            }
            else if( o_parent == o_root_item )
            {
                vlc_mutex_lock( &p_item->input.lock );
                o_children = [[NSMutableArray alloc] initWithCapacity:
                    p_item->input.pp_categories[i_object_id]->i_infos];

                for (i = 0 ; i < p_item->input.pp_categories[i_object_id]->i_infos ; i++)
                {
                    [o_children addObject:[[VLCInfoTreeItem alloc]
                    initWithName: [NSString stringWithUTF8String:
                            p_item->input.pp_categories[i_object_id]->pp_infos[i]->psz_name]
                        value: [NSString stringWithUTF8String:
                            p_item->input.pp_categories[i_object_id]->pp_infos[i]->psz_value]
                        ID: i
                        parent: self]];
                }
                vlc_mutex_unlock( &p_item->input.lock );
            }
            else
            {
                o_children = IsALeafNode;
            }
        }
    }
    return o_children;
}

- (NSString *)getName
{
    return o_name;
}

- (NSString *)getValue
{
    return o_value;
}

- (VLCInfoTreeItem *)childAtIndex:(int)i_index {
    return [[self children] objectAtIndex:i_index];
}

- (int)numberOfChildren {
    id i_tmp = [self children];
    return ( i_tmp == IsALeafNode ) ? (-1) : (int)[i_tmp count];
}

/*- (int)selectedPlaylistItem
{
    return i_item;
}
*/
- (void)refresh
{
    p_item = [[[VLCMain sharedInstance] getInfo] getItem];
    if( o_children != NULL )
    {
        [o_children release];
        o_children = NULL;
    }
}

@end