Added mouse fader control

main.py

@@ -6,6 +6,7 @@ from rich.segment import Segment
 from rich.style import Style
 from textual import events
 from textual.app import App, ComposeResult, Widget, RenderResult
+from textual.binding import Binding
 from textual.color import Color
 from textual.containers import HorizontalScroll, Horizontal, Vertical, Container
 from textual.events import Event, MouseEvent
@@ -230,12 +231,12 @@ class Channel(Widget):
         ('equals', 'move_fader(.5)'),
         ('plus', 'move_fader(.5)'),
         ('minus', 'move_fader(-.5)'),
-        ('m', 'mute'),
+        Binding('m', 'mute', "Mute", show=True),
-        ('s', 'solo'),
+        Binding('s', 'solo', "Solo", show=True),
-        ('p', 'phantom'),
+        Binding('p', 'phantom', "48v", show=True),
-        ('i', 'inst'),
+        Binding('i', 'inst', "Inst.", show=True),
-        ('q', 'gain(-3)'),
+        Binding('q', 'gain(-3)', "+gain", show=True),
-        ('e', 'gain(3)'),
+        Binding('e', 'gain(3)', "-gain", show=True),
     ]
 
     can_focus = True
@@ -260,6 +261,13 @@ class Channel(Widget):
             self.change = change
             super().__init__()
 
+    class SetFader(Message):
+        def __init__(self, channel: int, output=False, val=0):
+            self.channel = channel
+            self.output = output
+            self.val = val
+            super().__init__()
+
     class ChangeGain(MoveFader):
         pass
 
@@ -296,6 +304,7 @@ class Channel(Widget):
         self.phantom_available = phantom
         self.inst_available = inst
         self.output = output
+        self.mouse_moved = False
 
     def compute_db_peak_value(self) -> float:
         try:
@@ -420,6 +429,28 @@ class Channel(Widget):
         else:
             self.action_move_fader(-1)
 
+    def _on_mouse_down(self, event: events.MouseDown) -> None:
+        pass
+
+    def _on_mouse_up(self, event: events.MouseUp) -> None:
+        pass
+
+    def _set_level_from_mouse_event(self, event: events.MouseEvent):
+        position = 1 - (event.pointer_y / (event.widget.region.height - 1))
+        db = encoding.map_range(position, 0, 1, -75, 6)
+        self.post_message(self.SetFader(self.channel, output=self.output, val=db))
+
+    def _on_mouse_move(self, event: events.MouseMove) -> None:
+        if event.button == 1 and event.widget == self.query_one('#level-indicator'):
+            self._set_level_from_mouse_event(event)
+            self.mouse_moved = True
+
+    def _on_click(self, event: events.Click) -> None:
+        if not self.mouse_moved and event.button == 1 and event.widget == self.query_one('#level-indicator'):
+            self._set_level_from_mouse_event(event)
+        self.mouse_moved = False
+
+
     def on_button_pressed(self, event):
         if 'mute' == event.button.id:
             self.action_mute()
@@ -731,10 +762,6 @@ class Mixer(App):
         self.query(ChannelRow)[y].query(Channel)[x].focus()
         self.update_mixer_display()
 
-    def _move_fader(self, dval):
-
-        self.update_mixer_display()
-
     def on_channel_phantom_toggle(self, message: Channel.PhantomToggle) -> None:
         if message.channel == 0:
             self.out_port.send(encode_message(3, [0x00010001 ^ self.bf_status.ch1_48v << 16]))
@@ -753,6 +780,13 @@ class Mixer(App):
                                      self.mixer.matrix[message.channel][self.current_mix_out] + message.change)
         self.update_mixer_display()
 
+    def on_channel_set_fader(self, message: Channel.SetFader) -> None:
+        if message.output:
+            self.mixer.set_out_level(message.channel, message.val)
+        else:
+            self.mixer.set_mix_level(message.channel, self.current_mix_out, message.val)
+        self.update_mixer_display()
+
     def on_channel_change_gain(self, message: Channel.ChangeGain) -> None:
         if message.channel > 1:
             return