fadto() fadeby() methods added to strip/bus classes

appgain(), appmute() methods added to virtualstrip class

vban_cmd/bus.py

@@ -43,6 +43,14 @@ class Bus(IRemote):
     def gain(self, val: float):
         self.setter("gain", val)
 
+    def fadeto(self, target: float, time_: int):
+        self.setter("FadeTo", f"({target}, {time_})")
+        time.sleep(self._remote.DELAY)
+
+    def fadeby(self, change: float, time_: int):
+        self.setter("FadeBy", f"({change}, {time_})")
+        time.sleep(self._remote.DELAY)
+
 
 class PhysicalBus(Bus):
     def __str__(self):

vban_cmd/strip.py

@@ -1,3 +1,4 @@
+import time
 from abc import abstractmethod
 from typing import Union
 
@@ -40,6 +41,14 @@ class Strip(IRemote):
     def gain(self, val: float):
         self.setter("gain", val)
 
+    def fadeto(self, target: float, time_: int):
+        self.setter("FadeTo", f"({target}, {time_})")
+        time.sleep(self._remote.DELAY)
+
+    def fadeby(self, change: float, time_: int):
+        self.setter("FadeBy", f"({change}, {time_})")
+        time.sleep(self._remote.DELAY)
+
 
 class PhysicalStrip(Strip):
     def __str__(self):
@@ -86,6 +95,12 @@ class VirtualStrip(Strip):
     def k(self, val: int):
         self.setter("karaoke", val)
 
+    def appgain(self, name: str, gain: float):
+        self.setter("AppGain", f'("{name}", {gain})')
+
+    def appmute(self, name: str, mute: bool = None):
+        self.setter("AppMute", f'("{name}", {1 if mute else 0})')
+
 
 class StripLevel(IRemote):
     def __init__(self, remote, index):