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observer example updated.

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some docstrings added
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onyx-and-iris 2022-08-02 09:31:41 +01:00
parent d12f988c7d
commit b3267c1cbf
1 changed files with 14 additions and 10 deletions
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24
examples/observer/__main__.py
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@ -4,20 +4,25 @@ import vban_cmd
class Observer: class Observer:
def __init__(self, vban): def __init__(self, vban):
self.vban = vban self.vban = vban
# register your app as event observer
self.vban.subject.add(self)
# add level updates, since they are disabled by default.
self.vm.event.add("ldirty")
# define an 'on_update' callback function to receive event updates
def on_update(self, subject): def on_update(self, subject):
if subject == "pdirty": if subject == "pdirty":
print("pdirty!") print("pdirty!")
if subject == "ldirty": elif subject == "ldirty":
info = ( info = (
f"[{self.vban.bus[0]} {self.vban.bus[0].levels.is_updated}]", f"[{self.vban.bus[0]} {self.vban.bus[0].levels.isdirty}]",
f"[{self.vban.bus[1]} {self.vban.bus[1].levels.is_updated}]", f"[{self.vban.bus[1]} {self.vban.bus[1].levels.isdirty}]",
f"[{self.vban.bus[2]} {self.vban.bus[2].levels.is_updated}]", f"[{self.vban.bus[2]} {self.vban.bus[2].levels.isdirty}]",
f"[{self.vban.bus[3]} {self.vban.bus[3].levels.is_updated}]", f"[{self.vban.bus[3]} {self.vban.bus[3].levels.isdirty}]",
f"[{self.vban.bus[4]} {self.vban.bus[4].levels.is_updated}]", f"[{self.vban.bus[4]} {self.vban.bus[4].levels.isdirty}]",
f"[{self.vban.bus[5]} {self.vban.bus[5].levels.is_updated}]", f"[{self.vban.bus[5]} {self.vban.bus[5].levels.isdirty}]",
f"[{self.vban.bus[6]} {self.vban.bus[6].levels.is_updated}]", f"[{self.vban.bus[6]} {self.vban.bus[6].levels.isdirty}]",
f"[{self.vban.bus[7]} {self.vban.bus[7].levels.is_updated}]", f"[{self.vban.bus[7]} {self.vban.bus[7].levels.isdirty}]",
) )
print(" ".join(info)) print(" ".join(info))
@ -25,7 +30,6 @@ class Observer:
def main(): def main():
with vban_cmd.api(kind_id, **opts) as vban: with vban_cmd.api(kind_id, **opts) as vban:
obs = Observer(vban) obs = Observer(vban)
vban.subject.add(obs)
while cmd := input("Press <Enter> to exit\n"): while cmd := input("Press <Enter> to exit\n"):
if not cmd: if not cmd: