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import psutil
from rich import box
from rich.panel import Panel
from textual.widget import Widget
from .braille_stream import BrailleStream
class Battery(Widget):
def on_mount(self):
self.bat_stream = BrailleStream(40, 4, 0.0, 100.0)
self.panel = Panel(
"",
title="",
title_align="left",
border_style="yellow",
box=box.SQUARE,
)
self.collect_data()
# update frequency: 1 min
self.set_interval(60.0, self.collect_data)
def collect_data(self):
bat = psutil.sensors_battery()
self.bat_stream.add_value(bat.percent)
self.panel.renderable = "[yellow]" + "\n".join(self.bat_stream.graph) + "[/]\n"
if bat.power_plugged:
status = "charging"
else:
mm = bat.secsleft // 60
hh, mm = divmod(mm, 60)
time_left_str = []
if hh > 0:
time_left_str.append(f"{hh}h")
if mm > 0:
time_left_str.append(f"{mm}min")
status = " ".join(time_left_str) + " left"
title = f"battery - {self.bat_stream.values[-1]:.1f}% - {status}"
if bat.percent < 15 and not bat.power_plugged:
title = "[red reverse bold]" + title + "[/]"
self.panel.title = title
self.refresh()
def render(self) -> Panel:
return self.panel
async def on_resize(self, event):
self.bat_stream.reset_width(event.width - 4)
self.bat_stream.reset_height(event.height - 2)
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