137 lines
5.1 KiB
Python
137 lines
5.1 KiB
Python
import tkinter as tk
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from tkinter import ttk
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from tkinter.messagebox import showinfo
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import threading
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from time import sleep
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from statistics import mean
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from .serial_reader import SerialReader
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from .config import DEFAULT_CALIB, DISPLAY_TYPES
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from .views import NumberView
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class WeightApp(tk.Tk):
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def __init__(self, weight_reader: SerialReader):
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super().__init__()
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self.weight_reader = weight_reader
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self.toolbar = tk.Frame(self, padx=10)
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self.toolbar.pack(side=tk.LEFT)
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#### Connection Settings ####
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self.connection_settings = tk.Frame(self.toolbar, pady=10)
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self.scan_ports_button = ttk.Button(self.connection_settings, text="Scan Devices", command=self.update_devices)
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self.scan_ports_button.pack()
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self.port_label = ttk.Label(self.connection_settings, text="Port:")
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self.port_label.pack(side=tk.LEFT)
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self.port = ttk.Combobox(self.connection_settings, values=[])
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self.update_devices()
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self.port.pack(side=tk.LEFT)
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self.connection_settings.pack()
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self.connect_button = ttk.Button(self.toolbar, text="Connect", command=self.connect)
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self.connect_button.pack()
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#### Weight Reader Settings ####
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self.reader_settings = tk.Frame(self.toolbar, pady=30)
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self.reader_settings.pack()
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self.calib_factor = tk.Frame(self.reader_settings)
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self.calib_factor.pack()
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self.calib_label = ttk.Label(self.calib_factor, text="Calibration Factor:")
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self.calib_label.pack()
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self.calib_weight = ttk.Combobox(self.calib_factor, values=[100], width=5)
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self.calib_weight.set(100)
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self.calib_weight.pack(side=tk.LEFT)
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self.calib_measurements = ttk.Entry(self.calib_factor)
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self.calib_measurements.insert(0, DEFAULT_CALIB)
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self.calib_measurements.pack(side=tk.LEFT)
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self.update_calib_button = ttk.Button(self.reader_settings, text="Update Calibration", command=self.update_calib)
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self.update_calib_button.pack()
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self.view_type = tk.Frame(self.toolbar, pady=20)
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self.view_type.pack()
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self.view_type_label = ttk.Label(self.view_type, text="Visual:")
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self.view_type_label.pack(side=tk.LEFT)
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self.view_type_select = ttk.Combobox(self.view_type, values=[t.value for t in DISPLAY_TYPES], postcommand=self.update_view)
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self.view_type_select.set(DISPLAY_TYPES.NUMBER.value)
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self.view_type_select.pack(side=tk.LEFT)
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#### Display ####
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self.update_view()
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self.update_weight_display()
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self.focus_force()
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def connect(self):
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if self.weight_reader.serial is None:
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port = self.port.get()
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self.weight_reader.connect(port)
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self.connect_button.config(text="Disconnect")
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self.connection_settings.pack_forget()
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else:
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self.weight_reader.disconnect()
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self.connect_button.config(text="Connect")
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self.connect_button.pack_forget()
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self.reader_settings.pack_forget()
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self.view.actions.pack_forget()
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self.connection_settings.pack()
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self.connect_button.pack()
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self.reader_settings.pack()
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self.view.pack()
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def update_devices(self):
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self.weight_reader.scan_devices()
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self.port.config(values=self.weight_reader.ports)
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if len(self.weight_reader.ports) > 0:
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self.port.set(self.weight_reader.ports[0])
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def update_calib(self):
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self.weight_reader.calib_factor = self.calib_weight.get() / float(self.calib_measurements.get())
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def update_view(self):
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selected_view = self.view_type_select.get()
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if selected_view == DISPLAY_TYPES.NUMBER.value:
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self.view = NumberView(self,
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tare_command=self.weight_reader.tare,
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calibrate_command=self.calibrate,
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padx=50)
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self.view.pack(side=tk.RIGHT)
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else:
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raise Exception(f"View {selected_view} not found.")
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def update_weight_display(self):
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weight = self.weight_reader.value
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self.view.update_weight(weight)
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self.after(100, self.update_weight_display)
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def calibrate(self):
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showinfo("Calibration", "Remove all weights.")
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self.weight_reader.reset()
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sleep(2)
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showinfo("Calibration", "Place Weight")
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self.weight_reader.calibrating = True
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sleep(30)
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self.weight_reader.calibrating = False
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print(self.weight_reader.calib_window)
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self.calib_measurements.delete(0, 'end')
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self.calib_measurements.insert(0, mean(self.weight_reader.calib_window))
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def main():
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weight_reader = SerialReader()
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threading.Thread(target=weight_reader.read_weights, daemon=True).start()
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app = WeightApp(weight_reader)
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app.protocol("WM_DELETE_WINDOW", lambda: on_closing(app, weight_reader))
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app.mainloop()
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def on_closing(app, weight_reader):
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weight_reader.stop()
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app.destroy()
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if __name__ == "__main__":
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main()
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