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grades4 example

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Martin Putzlocher 2022-01-04 15:50:23 +00:00
parent 22831cfc19
commit 676d30d65c
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Created on Tue Dec 10 19:58:52 2019
@author: mputzlocher
"""
import tkinter as tk
from math import floor
#+++++++++++++++++++++++
# Model
#+++++++++++++++++++++++
grades = list()
average = 0
def calc_average():
gsum = 0
cnt = 0
for g in grades:
gsum += g
cnt += 1
if cnt > 0:
avg = gsum / cnt
else:
avg = 0
avgout = floor(avg * 100) / 100
return avgout
#+++++++++++++++++++++++
# Controller
#+++++++++++++++++++++++
class Controller():
def __init__(self, app):
self.app = app
self.vali = Validator(self)
def update_avg(self):
a = calc_average()
app.update_avg(a)
global average
average = a
def add_grade(self, event=None):
try:
g = self.app.grade.get()
print(g)
except:
print("no value")
return False
grades.append(g)
print(grades)
self.app.update_entries(grades)
self.app.update_canvas_histo()
self.app.update_canvas_circ()
self.app.update_cnt(len(grades))
self.update_avg()
def del_last_entry(self, event=None):
if len(grades) > 0:
grades.pop()
self.app.update_entries(grades)
self.app.update_canvas_histo()
self.app.update_canvas_circ()
self.app.update_cnt(len(grades))
self.update_avg()
else:
# Nothing to do
pass
def save_to_file(self, event=None):
f = open("mygrades.dat", "w+")
for g in grades:
f.write(str(g) + "\n")
f.write("----------\n")
f.write(str(average))
f.close()
#+++++++++++++++++++++++
# Validator
#+++++++++++++++++++++++
class Validator():
def __init__(self, controller):
self.con = controller
def validateGrade(self, P):
print("got {}".format(P))
if P == "":
return True
else:
pass
try:
P_num = int(P)
if P_num <= 6 and P_num >= 1:
return True
else:
print("not in range")
return False
except:
print("no number")
return False
## +++++++++++++++
# View
## +++++++++++++++
class MainWindow(tk.Frame):
def __init__(self, master=None):
super().__init__(master)
self.master = master
#top=self.winfo_toplevel()
#top.rowconfigure(0, weight=1)
#top.columnconfigure(0, weight=1)
#self.rowconfigure(0, weight=1)
#self.columnconfigure(0, weight=1)
self.grid(sticky=tk.N+tk.S+tk.E+tk.W)
#self.configure(width=500, height=500)
self.create_widgets()
self.controller = Controller(self)
self.activate_controller()
def create_widgets(self):
self.rowconfigure(0, weight=1)
self.f_input = tk.LabelFrame(self, text="Eingabe")
self.f_input.grid(row=0, column=0, sticky="nwse")
self.f_input.rowconfigure(0, weight=1)
self.f_input.columnconfigure(0, weight=1)
self.f_input.columnconfigure(1, weight=1)
self.f_input.columnconfigure(2, weight=1)
self.grade = tk.IntVar()
self.grade.set(1)
self.e_grade = tk.Entry(self.f_input, width = 3, textvariable=self.grade, bd=2, justify="center", bg="white", fg="blue")
self.e_grade.grid(row = 0, column = 0, sticky="we")
self.e_grade.focus()
self.e_grade.select_range(0,"end")
self.b_grade = tk.Button(self.f_input, text="Eintragen", padx=5, pady=2)
self.b_grade.grid(row = 0, column = 1, sticky = "e")
self.b_del_last = tk.Button(self.f_input, text="Letzte Löschen", padx=5, pady=2)
self.b_del_last.grid(row = 0, column = 2, sticky = "e")
self.b_load = tk.Button(self, text="Laden")
self.b_load.grid(row = 0, column = 2)
#self.ll_entries = tk.Label(self, text="Einträge:")
#self.ll_entries.grid(row = 1, column = 0)
self.f_entries = tk.LabelFrame(self, text="Einträge")
self.f_entries.grid(row = 1, column = 0, sticky="nwse")
self.l_entries = tk.Label(self.f_entries, text="")
self.l_entries.grid(row = 0, column = 0, sticky = "we")
self.f_data = tk.LabelFrame(self, text="Daten")
self.f_data.grid(row = 2, column = 0, sticky="nwse")
self.f_data.columnconfigure(0, weight=1)
self.f_data.columnconfigure(1, weight=1)
self.f_avg = tk.Frame(self.f_data)
self.f_avg.grid(row=0, column=0)
self.ll_avg = tk.Label(self.f_avg, text="Durchschnitt:")
self.ll_avg.grid(row = 0, column = 0)
self.l_avg = tk.Label(self.f_avg, text="")
self.l_avg.grid(row = 0, column = 1)
self.f_cnt = tk.Frame(self.f_data)
self.f_cnt.grid(row=0, column=1)
self.ll_cnt = tk.Label(self.f_cnt, text="Anzahl:")
self.ll_cnt.grid(row = 0, column = 0)
self.l_cnt = tk.Label(self.f_cnt, text="0")
self.l_cnt.grid(row = 0, column = 1)
self.b_save = tk.Button(self, text="Speichern")
self.b_save.grid(row = 2, column = 2)
self.f_diagrams = tk.Frame(self)
self.f_diagrams.grid(row=3, column = 0, sticky="nwse")
self.cv_histo = tk.Canvas(self.f_diagrams, width = 210, height = 140, bg="white")
self.cv_histo.grid(row=3, column = 0)
self.fill_canvas_histo()
self.cv_circ = tk.Canvas(self.f_diagrams, width = 125, height = 125, bg = "lightgray")
self.cv_circ.grid(row=3, column = 1)
self.fill_canvas_circ()
def fill_canvas_histo(self):
cv = self.cv_histo
cv.update_idletasks()
maxw = cv.winfo_width()
maxh = cv.winfo_height()
diagh = maxh - 30
w = (maxw-20) // 6 - 4
border = 10
dist = 4
#columns = list()
#columns_counts = list()
for i in range(6):
left = border + dist + i*(w + dist)
tag = "c"+str(i+1)
c = cv.create_rectangle(left, diagh, left +w, diagh, fill="blue", tags=(tag))
#columns.append(c)
if i>0 and i % 2 == 0:
cv.create_line(left - 2, maxh, left - 2, diagh, fill="gray", dash="2 1")
else:
pass
pos = left + w //2
tag = "cnt"+str(i+1)
cl = cv.create_text(pos, diagh-8, text="0", tags=(tag), fill="white", font="sans 8")
#columns_counts.append(cl)
tag = "pc"+str(i+1)
cp = cv.create_text(pos, diagh+8, text="0 %", tags=(tag), fill="black", font="sans 8")
if i % 2 == 0:
pos = left + (2*w + dist)//2
tag = "pc2step"+str(i+1)
cp2 = cv.create_text(pos, diagh+20, text="0 %", tags=(tag), fill="black", font="sans 8")
else:
pass
def update_canvas_histo(self):
cv = self.cv_histo
maxh = cv.winfo_height()
maxw = cv.winfo_width()
diagh = maxh - 30
w = (maxw-20) // 6 - 4
border = 10
dist = 4
maxcount = 0
counts = list()
percentages = list()
l = len(grades)
for i in range(6):
grade = i+1
cnt = grades.count(grade)
counts.append(cnt)
if l > 0:
p = int(round(cnt/l*100,0))
else:
p = 0
percentages.append(p)
if cnt > maxcount:
maxcount = cnt
else:
pass
if maxcount > 0:
step = (diagh-10) // maxcount
else:
step = 0
for i in range(6):
left = border + dist + i*(w + dist)
tag = "c"+str(i+1)
height = counts[i] * step
cv.coords(tag, (left, diagh, left +w, diagh-height))
pos = left + w //2
tag = "cnt"+str(i+1)
cv.coords(tag, (pos, diagh-height+6))
cv.itemconfigure(tag, text=str(counts[i]))
tag = "pc"+str(i+1)
cv.itemconfigure(tag, text=str(percentages[i]) + " %")
if i % 2 == 0:
pos = left + (2*w + dist)//2
tag = "pc2step"+str(i+1)
if l > 0:
p = int(round((counts[i] + counts[i+1])/l*100,0))
else:
p = 0
cv.itemconfigure(tag, text = str(p) + " %")
else:
pass
def fill_canvas_circ(self):
cv = self.cv_circ
cv.update_idletasks()
maxw = cv.winfo_width()
maxh = cv.winfo_height()
center = [maxw // 2, maxh // 2]
radius = maxh // 2 - 2
colors = ["#3bd63b", "#30adad", "#ff9a46", "#ff9797", "#ff4646", "#d00404"]
parts = list()
for i in range(6):
tag = "p"+str(i+1)
c = cv.create_arc(center[0]-radius, center[1]-radius, center[0]+radius, center[1]+radius,
fill=colors[i], tags=(tag), activewidth=3, activeoutline = "white",
start = 0, extent = 0)
parts.append(c)
def update_canvas_circ(self):
cv = self.cv_circ
cv.update_idletasks()
cnt_all = len(grades)
counts = list()
for i in range(6):
grade = i+1
cnt = grades.count(grade)
counts.append(cnt)
if cnt_all > 0:
angles = [360*cnt / cnt_all for cnt in counts]
else:
angles = [0 for cnt in counts]
startangles = [0]
partsum = 0
for i in range(5):
partsum += angles[i]
startangles.append(partsum)
for i in range(6):
tag = "p"+str(i+1)
startangle = startangles[i]
extangle = angles[i]
#print("from {} extent {}".format(startangle, extangle))
cv.itemconfig(tag, start=startangle, extent= extangle)
cv.update_idletasks()
def update_cnt(self, c):
self.l_cnt["text"] = str(c)
def update_avg(self, a):
self.l_avg["text"] = str(a)
def update_entries(self, grades):
entries_str = grades
self.l_entries["text"] = entries_str
self.e_grade.focus()
self.e_grade.select_range(0,"end")
def activate_controller(self):
vcmd = (self.e_grade.register(self.controller.vali.validateGrade), '%P')
self.e_grade.bind("<Return>", self.controller.add_grade)
self.e_grade.bind("<KP_Enter>", self.controller.add_grade)
self.e_grade["validate"]="key"
self.e_grade["validatecommand"]=vcmd
self.b_grade["command"] = self.controller.add_grade
self.b_del_last["command"] = self.controller.del_last_entry
self.b_save["command"] = self.controller.save_to_file
## +++++++++++++++
# Ausführung
## +++++++++++++++
root = tk.Tk()
root.title("Notendurchschnitt")
#root.attributes('-zoomed', True)
app = MainWindow(master=root)
app.mainloop()