import tkinter as tk
from tkinter import ttk
from tkinter import messagebox
from datetime import datetime
from . import widgets as w
class DataRecordForm(tk.Frame):
"""The input form for our widgets"""
def __init__(self, parent, fields, settings, *args, **kwargs):
super().__init__(parent, *args, **kwargs)
self.settings = settings
# A dict to keep track of input widgets
self.inputs = {}
# Build the form
# recordinfo section
recordinfo = tk.LabelFrame(self, text="Record Information")
# line 1
self.inputs['Date'] = w.LabelInput(
recordinfo, "Date",
field_spec=fields['Date']
)
self.inputs['Date'].grid(row=0, column=0)
self.inputs['Time'] = w.LabelInput(
recordinfo, "Time",
field_spec=fields['Time']
)
self.inputs['Time'].grid(row=0, column=1)
self.inputs['Technician'] = w.LabelInput(
recordinfo, "Technician",
field_spec=fields['Technician']
)
self.inputs['Technician'].grid(row=0, column=2)
# line 2
self.inputs['Lab'] = w.LabelInput(
recordinfo, "Lab",
field_spec=fields['Lab']
)
self.inputs['Lab'].grid(row=1, column=0)
self.inputs['Plot'] = w.LabelInput(
recordinfo, "Plot",
field_spec=fields['Plot']
)
self.inputs['Plot'].grid(row=1, column=1)
self.inputs['Seed sample'] = w.LabelInput(
recordinfo, "Seed sample",
field_spec=fields['Seed sample']
)
self.inputs['Seed sample'].grid(row=1, column=2)
recordinfo.grid(row=0, column=0, sticky="we")
# Environment Data
environmentinfo = tk.LabelFrame(self, text="Environment Data")
self.inputs['Humidity'] = w.LabelInput(
environmentinfo, "Humidity (g/m³)",
field_spec=fields['Humidity']
)
self.inputs['Humidity'].grid(row=0, column=0)
self.inputs['Light'] = w.LabelInput(
environmentinfo, "Light (klx)",
field_spec=fields['Light']
)
self.inputs['Light'].grid(row=0, column=1)
self.inputs['Temperature'] = w.LabelInput(
environmentinfo, "Temperature (°C)",
field_spec=fields['Temperature']
)
self.inputs['Temperature'].grid(row=0, column=2)
self.inputs['Equipment Fault'] = w.LabelInput(
environmentinfo, "Equipment Fault",
field_spec=fields['Equipment Fault']
)
self.inputs['Equipment Fault'].grid(row=1, column=0, columnspan=3)
environmentinfo.grid(row=1, column=0, sticky="we")
# Plant Data section
plantinfo = tk.LabelFrame(self, text="Plant Data")
self.inputs['Plants'] = w.LabelInput(
plantinfo, "Plants",
field_spec=fields['Plants']
)
self.inputs['Plants'].grid(row=0, column=0)
self.inputs['Blossoms'] = w.LabelInput(
plantinfo, "Blossoms",
field_spec=fields['Blossoms']
)
self.inputs['Blossoms'].grid(row=0, column=1)
self.inputs['Fruit'] = w.LabelInput(
plantinfo, "Fruit",
field_spec=fields['Fruit']
)
self.inputs['Fruit'].grid(row=0, column=2)
# Height data
# create variables to be updated for min/max height
# they can be referenced for min/max variables
min_height_var = tk.DoubleVar(value='-infinity')
max_height_var = tk.DoubleVar(value='infinity')
self.inputs['Min Height'] = w.LabelInput(
plantinfo, "Min Height (cm)",
field_spec=fields['Min Height'],
input_args={"max_var": max_height_var,
"focus_update_var": min_height_var}
)
self.inputs['Min Height'].grid(row=1, column=0)
self.inputs['Max Height'] = w.LabelInput(
plantinfo, "Max Height (cm)",
field_spec=fields['Max Height'],
input_args={"min_var": min_height_var,
"focus_update_var": max_height_var}
)
self.inputs['Max Height'].grid(row=1, column=1)
self.inputs['Median Height'] = w.LabelInput(
plantinfo, "Median Height (cm)",
field_spec=fields['Median Height'],
input_args={"min_var": min_height_var,
"max_var": max_height_var}
)
self.inputs['Median Height'].grid(row=1, column=2)
plantinfo.grid(row=2, column=0, sticky="we")
# Notes section
self.inputs['Notes'] = w.LabelInput(
self, "Notes",
field_spec=fields['Notes'],
input_args={"width": 75, "height": 10}
)
self.inputs['Notes'].grid(sticky="w", row=3, column=0)
# default the form
self.reset()
def get(self):
"""Retrieve data from form as a dict"""
# We need to retrieve the data from Tkinter variables
# and place it in regular Python objects
data = {}
for key, widget in self.inputs.items():
data[key] = widget.get()
return data
def reset(self):
"""Resets the form entries"""
# gather the values to keep for each lab
lab = self.inputs['Lab'].get()
time = self.inputs['Time'].get()
technician = self.inputs['Technician'].get()
plot = self.inputs['Plot'].get()
plot_values = self.inputs['Plot'].input.cget('values')
# clear all values
for widget in self.inputs.values():
widget.set('')
# new for ch6
if self.settings['autofill date'].get():
current_date = datetime.today().strftime('%Y-%m-%d')
self.inputs['Date'].set(current_date)
self.inputs['Time'].input.focus()
# check if we need to put our values back, then do it.
if (
self.settings['autofill sheet data'].get() and
plot not in ('', plot_values[-1])
):
self.inputs['Lab'].set(lab)
self.inputs['Time'].set(time)
self.inputs['Technician'].set(technician)
next_plot_index = plot_values.index(plot) + 1
self.inputs['Plot'].set(plot_values[next_plot_index])
self.inputs['Seed sample'].input.focus()
def get_errors(self):
"""Get a list of field errors in the form"""
errors = {}
for key, widget in self.inputs.items():
if hasattr(widget.input, 'trigger_focusout_validation'):
widget.input.trigger_focusout_validation()
if widget.error.get():
errors[key] = widget.error.get()
return errors
class MainMenu(tk.Menu):
"""The Application's main menu"""
def __init__(self, parent, settings, callbacks, **kwargs):
"""Constructor for MainMenu
arguments:
parent - The parent widget
settings - a dict containing Tkinter variables
callbacks - a dict containing Python callables
"""
super().__init__(parent, **kwargs)
# The file menu
file_menu = tk.Menu(self, tearoff=False)
file_menu.add_command(label="Select file…", command=callbacks['file->select'])
file_menu.add_separator()
file_menu.add_command(label="Quit", command=callbacks['file->quit'])
self.add_cascade(label='File', menu=file_menu)
# The options menu
options_menu = tk.Menu(self, tearoff=False)
options_menu.add_checkbutton(
label='Autofill Date',
variable=settings['autofill date']
)
options_menu.add_checkbutton(
label='Autofill Sheet data',
variable=settings['autofill sheet data']
)
self.add_cascade(label='Options', menu=options_menu)
# The help menu
help_menu = tk.Menu(self, tearoff=False)
help_menu.add_command(label='About…', command=self.show_about)
self.add_cascade(label='Help', menu=help_menu)
def show_about(self):
"""Show the about dialog"""
about_message = 'ABQ Data Entry'
about_detail = (
'by Alan D Moore\n'
'For assistance please contact the author.'
)
messagebox.showinfo(title='About', message=about_message, detail=about_detail)
