lern-tracking-system/raspberry-pi/mainWindow.py

import time
import queue

import tkinter as tk
import numpy as np

from gui.popup import CalibrationPopUp
from gui.graph import Graph
from gui.logScreen import LogScreen
from sensors.opticalSensor import OpticalSensor
import logHandler


class MainWindow(tk.Frame):
  def __init__(self, root, conf, ac_sensor, opt_sensor, mag_sensor):
    self.root         = root
    self.conf         = conf
    self.ac_sensor    = ac_sensor
    self.opt_sensor   = opt_sensor
    self.mag_sensor   = mag_sensor
    self.log_handler  = logHandler.get_log_handler()
    self.popup_window = None
    self.log_window   = None
    self.mainWindow   = None

    tk.Frame.__init__(self, root)
    # data plot at left side
    self.graph = Graph(self)
    self.graph.pack(fill=tk.BOTH, side=tk.LEFT, expand=True)
    # frame at right side
    self.controls = tk.Frame(self, borderwidth=4)
    self.controls.pack(fill=tk.BOTH, side=tk.RIGHT)
    self.controlsUpdateTime = 0

    self.ac_dro_val_sums = np.ndarray((4), dtype=np.float)
    self.ac_dro_val_count = 0
    self.ac_dro_x = tk.StringVar()
    self.ac_dro_y = tk.StringVar()
    self.ac_dro_t1 = tk.StringVar()
    self.ac_dro_t2 = tk.StringVar()
    self.ac_label = tk.Label(self.controls, text="Acoustic Sensor", anchor="c", font=("Helvatica", 10, 'bold'))
    self.ac_label.pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.ac_dro_x, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.ac_dro_y, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.ac_dro_t1, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.ac_dro_t2, anchor="nw").pack(side="top", fill="both", expand=False)

    self.opt_dro_val_sums = np.ndarray((4), dtype=np.float)
    self.opt_dro_val_count = 0
    self.opt_dro_x = tk.StringVar()
    self.opt_dro_y = tk.StringVar()
    self.opt_dro_offset = tk.StringVar()
    self.opt_dro_size   = tk.StringVar()
    self.opt_label = tk.Label(self.controls, text="Optical Sensor", anchor="c", font=("Helvatica", 10, 'bold'))
    self.opt_label.pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.opt_dro_x, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.opt_dro_y, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.opt_dro_offset, anchor="nw").pack(side="top", fill="both", expand=False)
    tk.Label(self.controls, textvariable=self.opt_dro_size, anchor="nw").pack(side="top", fill="both", expand=False)

    self.mag_label = tk.Label(self.controls, text="Magnetic Sensor", anchor="c", font=("Helvatica", 10, 'bold'))
    self.mag_label.pack(side="top", fill="both", expand=False)
    self.mag_dro_x = tk.StringVar()
    self.mag_dro_y = tk.StringVar()
    self.mag_dro_val_sums = tk.StringVar()
    self.mag_dro_val_count = tk.StringVar()
    tk.Label(self.controls, textvariable=self.mag_dro_x, anchor = "nw").pack(side = "top", fill = "both", expand = False)
    tk.Label(self.controls, textvariable=self.mag_dro_y, anchor = "nw").pack(side = "top", fill = "both", expand = False)
    tk.Label(self.controls, textvariable=self.mag_dro_x, anchor = "nw").pack(side = "top", fill = "both", expand = False)
    tk.Label(self.controls, textvariable=self.mag_dro_y, anchor = "nw").pack(side = "top", fill = "both", expand = False)

    self.quit_button = tk.Button(self.controls, text="Quit", command=self.root.destroy, height=2, foreground="red")
    self.quit_button.pack(side="bottom", fill="both")

    self.calibrateac_button = tk.Button(self.controls, text="Calibrate AC", command=self.calibrate_ac, height=4)
    self.calibrateac_button.pack_forget()

    self.calibratemc_button = tk.Button(self.controls, text = "Calibrate MC", command = self.calibrate_mc,height = 4)
    self.calibratemc_button.pack_forget()

    self.clear_button = tk.Button(self.controls, text="Clear graph", command=self.graph.clear, height=4)
    self.clear_button.pack_forget()

    self.logscreen_button = tk.Button(self.controls, text="Log", command=self.open_log, height=4)
    self.logscreen_button.pack_forget()

    self.menu_button = tk.Button(self.controls, text="Menu", command=self.menu, height=4)
    self.menu_button.pack(side="bottom", fill="both")
    
    self.menu_back_button = tk.Button(self.controls, text="Back", command=self.back, height=4)
    self.menu_back_button.pack_forget()

  def update(self):
    if not self.root.winfo_exists():
      return

    ac_positions = []
    # aggregate measurements
    while self.ac_sensor.queue.qsize() > 0:
      name, data = self.ac_sensor.queue.get()
      if name == "data":
        ac_positions.append(data[0:2])
        self.ac_dro_val_sums += data
        self.ac_dro_val_count += 1

    opt_positions = []
    while self.opt_sensor.queue.qsize() > 0:
      name, data = self.opt_sensor.queue.get()
      if name == "data":
        opt_positions.append(data[0:2])
        self.opt_dro_val_sums += data
        self.opt_dro_val_count += 1
    
    mag_positions = []
    while self.mag_sensor.queue.qsize() > 0:
      name, data = self.mag_sensor.queue.get()
      if name == "data":
        mag_positions.append(data[0:2])
        self.mag_dro_val_sums += data
        self.mag_dro_val_count += 1
    
    # graph shows all values as a line
    self.graph.update([ac_positions, opt_positions, mag_positions])

    # update status color
    if self.ac_sensor.dummyActive:
      self.ac_label.config(fg="white", bg="red")
    elif len(ac_positions) > 0:
      self.ac_label.config(fg="white", bg="green")
    else:
      self.ac_label.config(fg="black", bg="yellow")


    if not self.opt_sensor.success:
      self.opt_label.config(fg="white", bg="red")
    elif len(opt_positions) > 0:
      self.opt_label.config(fg="white", bg="green")
    else:
      self.opt_label.config(fg="black", bg="yellow")

    if not self.mag_sensor.:
     self.mag_label.config(fg="white", bg="red")
    elif len(mag_positions) > 0:
     self.mag_label.config(fg="white", bg="green")
    else:
     self.mag_label.config(fg="black", bg="yellow")


    # readouts will only be updated so often
    if self.controlsUpdateTime + 0.4 < time.time():
      self.controlsUpdateTime = time.time()
      # they display the average of all values
      if self.ac_dro_val_count > 0:
        self.ac_dro_val_sums /= self.ac_dro_val_count
      else:
        self.ac_dro_val_sums.fill(0)

      self.ac_dro_x.set("X: {:.1f} mm".format(self.ac_dro_val_sums[0]))
      self.ac_dro_y.set("Y: {:.1f} mm".format(self.ac_dro_val_sums[1]))
      self.ac_dro_t1.set("t1: {:.3f} ms".format(self.ac_dro_val_sums[2]/1000))
      self.ac_dro_t2.set("t2: {:.3f} ms".format(self.ac_dro_val_sums[3]/1000))

      self.ac_dro_val_sums.fill(0)
      self.ac_dro_val_count = 0

      if self.opt_dro_val_count > 0:
        self.opt_dro_val_sums /= self.opt_dro_val_count
      else:
        self.opt_dro_val_sums.fill(0)

      self.opt_dro_x.set("X: {:.1f} mm".format(self.opt_dro_val_sums[0]))
      self.opt_dro_y.set("Y: {:.1f} mm".format(self.opt_dro_val_sums[1]))
      self.opt_dro_offset.set("offset: {:.1f} %".format(self.opt_dro_val_sums[2]*100))
      self.opt_dro_size.set("size: {:.1f} %".format(self.opt_dro_val_sums[3]*100))

      self.opt_dro_val_sums.fill(0)
      self.opt_dro_val_count = 0

    if self.popup_window:
      self.popup_window.update()
    
    if self.log_window:
      self.log_window.update()

    self.root.after(30, self.update)

  def calibrate_ac(self):
    self.ac_sensor.start_calibration()
    if not self.popup_window or not self.pu_root.winfo_exists():
      # create new window
      self.pu_root = tk.Toplevel(self.root)
      self.pu_root.wm_transient(self.root)
      self.pu_root.wm_title("Acoustic Sensor Calibration")
      # make it centered
      x = (self.pu_root.winfo_screenwidth()  - 500) / 2
      y = (self.pu_root.winfo_screenheight() - 200) / 2
      self.pu_root.geometry(f'500x200+{int(x)}+{int(y)}')
      # deactivate mainWindow
      self.pu_root.grab_set()
      self.popup_window = CalibrationPopUp(self.pu_root, self.ac_sensor.calibration_state, self.conf)
      self.popup_window.pack(side="top", fill="both", expand=True)

  def calibrate_mc(self):
    pass

  def open_log(self):
    #create new window
    self.log_root = tk.Toplevel(self.root)
    self.log_root.wm_transient(self.root)
    self.log_root.wm_title("Logs")
    #center
    x = (self.log_root.winfo_screenwidth()  - 780) / 2
    y = (self.log_root.winfo_screenheight() - 400) / 2
    self.log_root.geometry(f'780x400+{int(x)}+{int(y)}')
    # deactivate mainWindow
    self.log_root.grab_set()
    self.log_window = LogScreen(self.log_root)
    self.log_window.pack(side="top", fill="both", expand=True)

  
  # Menu Button
  def menu(self):
    self.menu_back_button.pack(side="bottom", fill="both")
    self.calibrateac_button.pack(side="bottom", fill="both")
    self.calibratemc_button.pack(side="bottom", fill="both")
    self.clear_button.pack(side="bottom", fill="both")
    self.logscreen_button.pack(side="bottom", fill="both")
    self.menu_button.pack_forget()

  #Back Button
  def back(self):
    self.calibrateac_button.pack_forget()
    self.calibratemc_button.pack_forget()
    self.clear_button.pack_forget()
    self.logscreen_button.pack_forget()
    self.menu_button.pack(side="bottom", fill="both")
    self.menu_back_button.pack_forget()