wip: PhraseLength widget

crates/tek_sequencer/src/sequencer.rs

@@ -309,3 +309,43 @@ impl<E: Engine> PhrasePlayer<E> {
         self.overdub = !self.overdub;
     }
 }
+pub struct PhraseLength<E: Engine> {
+    _engine: PhantomData<E>,
+    pub ppq: usize,
+    pub bpb: usize,
+    pub pulses: usize,
+    pub focused: bool,
+    pub focus: PhraseLengthFocus
+}
+impl<E: Engine> PhraseLength<E> {
+    fn new (pulses: usize) -> Self {
+        Self {
+            _engine: Default::default(),
+            ppq: PPQ,
+            bpb: 4,
+            pulses,
+            focused: false,
+            focus: PhraseLengthFocus::Bar
+        }
+    }
+    pub fn bars (&self) -> usize {
+        self.pulses / (self.bpb * self.ppq)
+    }
+    pub fn beats (&self) -> usize {
+        self.pulses % (self.bpb * self.ppq)
+    }
+    pub fn ticks (&self) -> usize {
+        self.pulses % self.ppq
+    }
+    pub fn bars_string (&self) -> String {
+        format!("{}", self.bars())
+    }
+    pub fn beats_string (&self) -> String {
+        format!("{}", self.beats())
+    }
+    pub fn ticks_string (&self) -> String {
+        format!("{}", self.ticks())
+    }
+}
+#[derive(Copy,Clone)]
+pub enum PhraseLengthFocus { Bar, Beat, Tick }

crates/tek_sequencer/src/sequencer_tui.rs

@@ -322,3 +322,37 @@ pub(crate) fn keys_vert () -> Buffer {
 const NTH_OCTAVE: [&'static str;11] = [
     "-1", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"
 ];
+
+impl Content for PhraseLength<Tui> {
+    type Engine = Tui;
+    fn content (&self) -> impl Widget<Engine = Tui> {
+        Layers::new(move|add|{
+            match (self.focused, &self.focus) {
+                (false, _) => add(&row!(
+                    " ", self.bars_string(),
+                    ".", self.beats_string(),
+                    ".", self.ticks_string(),
+                    " "
+                )),
+                (true, PhraseLengthFocus::Bar) => add(&row!(
+                    "[", self.bars_string(),
+                    "]", self.beats_string(),
+                    ".", self.ticks_string(),
+                    " "
+                )),
+                (true, PhraseLengthFocus::Beat) => add(&row!(
+                    " ", self.bars_string(),
+                    "[", self.beats_string(),
+                    "]", self.ticks_string(),
+                    " "
+                )),
+                (true, PhraseLengthFocus::Tick) => add(&row!(
+                    " ", self.bars_string(),
+                    ".", self.beats_string(),
+                    "[", self.ticks_string(),
+                    "]"
+                )),
+            }
+        })
+    }
+}