wip: refactor: cli, snd, tui

crates/tek_tui/src/mixer.rs

@@ -0,0 +1,133 @@
+use crate::*;
+
+pub struct Mixer<E: Engine> {
+    /// JACK client handle (needs to not be dropped for standalone mode to work).
+    pub jack:            Arc<RwLock<JackClient>>,
+    pub name:            String,
+    pub tracks:          Vec<Track<E>>,
+    pub selected_track:  usize,
+    pub selected_column: usize,
+}
+impl<E: Engine> Mixer<E> {
+    pub fn new (jack: &Arc<RwLock<JackClient>>, name: &str) -> Usually<Self> {
+        Ok(Self {
+            jack: jack.clone(),
+            name: name.into(),
+            selected_column: 0,
+            selected_track:  1,
+            tracks: vec![],
+        })
+    }
+    pub fn track_add (&mut self, name: &str, channels: usize) -> Usually<&mut Self> {
+        let track = Track::new(name)?;
+        self.tracks.push(track);
+        Ok(self)
+    }
+    pub fn track (&self) -> Option<&Track<E>> {
+        self.tracks.get(self.selected_track)
+    }
+}
+
+//pub const ACTIONS: [(&'static str, &'static str);2] = [
+    //("+/-",     "Adjust"),
+    //("Ins/Del", "Add/remove track"),
+//];
+
+
+/// A sequencer track.
+#[derive(Debug)]
+pub struct Track<E: Engine> {
+    pub name:    String,
+    /// Inputs and outputs of 1st and last device
+    pub ports:   JackPorts,
+    /// Device chain
+    pub devices: Vec<JackDevice<E>>,
+    /// Device selector
+    pub device:  usize,
+}
+
+impl<E: Engine> Track<E> {
+    pub fn new (name: &str) -> Usually<Self> {
+        Ok(Self {
+            name:    name.to_string(),
+            ports:   JackPorts::default(),
+            devices: vec![],
+            device:  0,
+        })
+    }
+    fn get_device_mut (&self, i: usize) -> Option<RwLockWriteGuard<Box<dyn AudioComponent<E>>>> {
+        self.devices.get(i).map(|d|d.state.write().unwrap())
+    }
+    pub fn device_mut (&self) -> Option<RwLockWriteGuard<Box<dyn AudioComponent<E>>>> {
+        self.get_device_mut(self.device)
+    }
+    /// Add a device to the end of the chain.
+    pub fn append_device (&mut self, device: JackDevice<E>) -> Usually<&mut JackDevice<E>> {
+        self.devices.push(device);
+        let index = self.devices.len() - 1;
+        Ok(&mut self.devices[index])
+    }
+    pub fn add_device (&mut self, device: JackDevice<E>) {
+        self.devices.push(device);
+    }
+    //pub fn connect_first_device (&self) -> Usually<()> {
+        //if let (Some(port), Some(device)) = (&self.midi_out, self.devices.get(0)) {
+            //device.client.as_client().connect_ports(&port, &device.midi_ins()?[0])?;
+        //}
+        //Ok(())
+    //}
+    //pub fn connect_last_device (&self, app: &Track) -> Usually<()> {
+        //Ok(match self.devices.get(self.devices.len().saturating_sub(1)) {
+            //Some(device) => {
+                //app.audio_out(0).map(|left|device.connect_audio_out(0, &left)).transpose()?;
+                //app.audio_out(1).map(|right|device.connect_audio_out(1, &right)).transpose()?;
+                //()
+            //},
+            //None => ()
+        //})
+    //}
+}
+
+
+
+pub struct TrackView<'a, E: Engine> {
+    pub chain:     Option<&'a Track<E>>,
+    pub direction: Direction,
+    pub focused:   bool,
+    pub entered:   bool,
+}
+
+impl<'a> Widget for TrackView<'a, Tui> {
+    type Engine = Tui;
+    fn layout (&self, area: [u16;2]) -> Perhaps<[u16;2]> {
+        todo!()
+    }
+    fn render (&self, to: &mut TuiOutput) -> Usually<()> {
+        todo!();
+        //let mut area = to.area();
+        //if let Some(chain) = self.chain {
+            //match self.direction {
+                //Direction::Down  => area.width = area.width.min(40),
+                //Direction::Right => area.width = area.width.min(10),
+                //_ => { unimplemented!() },
+            //}
+            //to.fill_bg(to.area(), Nord::bg_lo(self.focused, self.entered));
+            //let mut split = Stack::new(self.direction);
+            //for device in chain.devices.as_slice().iter() {
+                //split = split.add_ref(device);
+            //}
+            //let (area, areas) = split.render_areas(to)?;
+            //if self.focused && self.entered && areas.len() > 0 {
+                //Corners(Style::default().green().not_dim()).draw(to.with_rect(areas[0]))?;
+            //}
+            //Ok(Some(area))
+        //} else {
+            //let [x, y, width, height] = area;
+            //let label = "No chain selected";
+            //let x = x + (width - label.len() as u16) / 2;
+            //let y = y + height / 2;
+            //to.blit(&label, x, y, Some(Style::default().dim().bold()))?;
+            //Ok(Some(area))
+        //}
+    }
+}