Display album name for playable objects (#268)

* display album name

* give proper name to the space key

fixes #266

* use 50% for center offset

Co-authored-by: Henrik Friedrichsen <henrik@affekt.org>

src/album.rs

@@ -159,6 +159,10 @@ impl ListItem for Album {
         format!("{}", self)
     }
 
+    fn display_center(&self) -> String {
+        "".to_string()
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         let saved = if library.is_saved_album(self) {
             if library.use_nerdfont {

src/artist.rs

@@ -148,6 +148,10 @@ impl ListItem for Artist {
         format!("{}", self)
     }
 
+    fn display_center(&self) -> String {
+        "".to_string()
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         let followed = if library.is_followed_artist(self) {
             if library.use_nerdfont {

src/episode.rs

@@ -71,6 +71,10 @@ impl ListItem for Episode {
         self.name.clone()
     }
 
+    fn display_center(&self) -> String {
+        "".to_string()
+    }
+
     fn display_right(&self, _library: Arc<Library>) -> String {
         format!("{} [{}]", self.duration_str(), self.release_date)
     }

src/playable.rs

@@ -76,6 +76,10 @@ impl ListItem for Playable {
         self.as_listitem().display_left()
     }
 
+    fn display_center(&self) -> String {
+        self.as_listitem().display_center()
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         self.as_listitem().display_right(library)
     }

src/playlist.rs

@@ -128,6 +128,10 @@ impl ListItem for Playlist {
         self.name.clone()
     }
 
+    fn display_center(&self) -> String {
+        "".to_string()
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         let saved = if library.is_saved_playlist(self) {
             if library.use_nerdfont {

src/show.rs

@@ -92,6 +92,10 @@ impl ListItem for Show {
         format!("{}", self)
     }
 
+    fn display_center(&self) -> String {
+        "".to_string()
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         let saved = if library.is_saved_show(self) {
             if library.use_nerdfont {

src/track.rs

@@ -153,6 +153,10 @@ impl ListItem for Track {
         format!("{}", self)
     }
 
+    fn display_center(&self) -> String {
+        format!("{}", self.album)
+    }
+
     fn display_right(&self, library: Arc<Library>) -> String {
         let saved = if library.is_saved_track(&Playable::Track(self.clone())) {
             if library.use_nerdfont {

src/traits.rs

@@ -15,6 +15,7 @@ use crate::track::Track;
 pub trait ListItem: Sync + Send + 'static {
     fn is_playing(&self, queue: Arc<Queue>) -> bool;
     fn display_left(&self) -> String;
+    fn display_center(&self) -> String;
     fn display_right(&self, library: Arc<Library>) -> String;
     fn play(&mut self, queue: Arc<Queue>);
     fn queue(&mut self, queue: Arc<Queue>);

src/ui/listview.rs

@@ -202,16 +202,19 @@ impl<I: ListItem> View for ListView<I> {
                 };
 
                 let left = item.display_left();
+                let center = item.display_center();
                 let right = item.display_right(self.library.clone());
 
+                let center_offset = printer.size.x / 2;
+
                 // draw left string
                 printer.with_color(style, |printer| {
                     printer.print_hline((0, 0), printer.size.x, " ");
                     printer.print((0, 0), &left);
                 });
 
-                // draw ".." to indicate a cut off string
+                // left string cut off indicator
-                let max_length = printer.size.x.saturating_sub(right.width() + 1);
+                let max_length = center_offset.saturating_sub(1);
                 if max_length < left.width() {
                     let offset = max_length.saturating_sub(1);
                     printer.with_color(style, |printer| {
@@ -219,6 +222,19 @@ impl<I: ListItem> View for ListView<I> {
                     });
                 }
 
+                printer.with_color(style, |printer| {
+                    printer.print((center_offset, 0), &center);
+                });
+
+                // center string cut off indicator
+                let max_length = printer.size.x.saturating_sub(right.width() + 1);
+                if max_length < center_offset + center.width() {
+                    let offset = max_length.saturating_sub(1);
+                    printer.with_color(style, |printer| {
+                        printer.print((offset, 0), "..");
+                    });
+                }
+
                 // draw right string
                 let offset = HAlign::Right.get_offset(right.width(), printer.size.x);