app: add volume key bindings and status display

src/tuimble/app.py

@@ -20,6 +20,16 @@ from tuimble.ptt import KittyPtt, TogglePtt, detect_backend
 
 log = logging.getLogger(__name__)
 
+VOLUME_STEPS = (0.0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 2.0)
+
+
+def _next_volume(current: float) -> float:
+    """Cycle through VOLUME_STEPS, wrapping to 0.0 after max."""
+    for step in VOLUME_STEPS:
+        if step > current + 0.01:
+            return step
+    return VOLUME_STEPS[0]
+
 
 # -- custom messages (pymumble thread -> Textual) ----------------------------
 
@@ -63,6 +73,14 @@ class StatusBar(Static):
     connected = reactive(False)
     self_deaf = reactive(False)
     server_info = reactive("")
+    output_vol = reactive(100)
+    input_vol = reactive(100)
+
+    @staticmethod
+    def _vol_bar(pct: int) -> str:
+        """Compact 4-char volume indicator using block chars."""
+        filled = round(pct / 25)
+        return "\u2588" * filled + "\u2591" * (4 - filled)
 
     def render(self) -> str:
         w = self.content_size.width if self.content_size.width > 0 else 80
@@ -88,8 +106,14 @@ class StatusBar(Static):
             return f" {conn_sym} {deaf_sym}{ptt_sym}"
         if w < 60:
             return f" {conn_full}  {deaf_full}{'  ' if deaf_full else ''}{ptt_full}"
+
+        vol = (
+            f"  [dim]out[/]{self._vol_bar(self.output_vol)}"
+            f" [dim]in[/]{self._vol_bar(self.input_vol)}"
+        )
         info = f"  [dim]{self.server_info}[/]" if self.server_info else ""
-        return f" {conn_full}  {deaf_full}{'  ' if deaf_full else ''}{ptt_full}{info}"
+        deaf = f"{deaf_full}  " if deaf_full else ""
+        return f" {conn_full}  {deaf}{ptt_full}{vol}{info}"
 
 
 class ChannelTree(Static):
@@ -345,6 +369,8 @@ class TuimbleApp(App):
 
     BINDINGS = [
         ("f1", "toggle_deaf", "Deafen"),
+        ("f2", "cycle_output_volume", "Vol Out"),
+        ("f3", "cycle_input_volume", "Vol In"),
         ("q", "quit", "Quit"),
         ("ctrl+c", "quit", "Quit"),
     ]
@@ -388,6 +414,10 @@ class TuimbleApp(App):
         yield Footer()
 
     def on_mount(self) -> None:
+        status = self.query_one("#status", StatusBar)
+        status.output_vol = int(self._audio.output_gain * 100)
+        status.input_vol = int(self._audio.input_gain * 100)
+
         chatlog = self.query_one("#chatlog", ChatLog)
         chatlog.write("[dim]tuimble v0.1.0[/dim]")
         srv = self._config.server
@@ -550,6 +580,28 @@ class TuimbleApp(App):
         else:
             chatlog.write("[#9ece6a]\u2713 undeafened[/]")
 
+    # -- volume ---------------------------------------------------------------
+
+    def action_cycle_output_volume(self) -> None:
+        """Cycle output volume through preset steps."""
+        vol = _next_volume(self._audio.output_gain)
+        self._audio.output_gain = vol
+        pct = int(vol * 100)
+        status = self.query_one("#status", StatusBar)
+        status.output_vol = pct
+        chatlog = self.query_one("#chatlog", ChatLog)
+        chatlog.write(f"[dim]output volume {pct}%[/dim]")
+
+    def action_cycle_input_volume(self) -> None:
+        """Cycle input volume through preset steps."""
+        vol = _next_volume(self._audio.input_gain)
+        self._audio.input_gain = vol
+        pct = int(vol * 100)
+        status = self.query_one("#status", StatusBar)
+        status.input_vol = pct
+        chatlog = self.query_one("#chatlog", ChatLog)
+        chatlog.write(f"[dim]input volume {pct}%[/dim]")
+
     # -- PTT -----------------------------------------------------------------
 
     def on_key(self, event: events.Key) -> None: