我一直在尝试学习Python语言的乐趣,并决定最好通过一个项目来做。由于我在啤酒厂工作,因此我认为创建一个简单的GUI来显示工厂中的所有罐以及所盛放的每种啤酒及其当前状态会很酷。如果我双击一个战车,它将弹出一个新窗口,允许我编辑战车信息,但是我无法使子级的信息显示在父窗口中(更具体地说,我想更改父级子项上的组合框中列出列表的项)。这是一张基本显示我要完成的图像:
我认为这些值可能已正确传递到列表中,但没有更新为要显示的相应Widget。我尝试在函数上调用.update()
,.after()
和.mainloop()
,但没有任何变化。
我尝试检查其他答案,但实际上我希望有一种无需求助于Classes即可解决此问题的方法,因为我还不太了解它们。这是我可以想到的最简单的代码最小版本:
import tkinter as tk
from tkinter import ttk
from PIL import Image, ImageTk
def click_duplo_tfm(event): # recognizes double-click on tanks and opens the specific window
if event.widget.extra == 'Widget TFM01':
abrir_janela('01', 1)
elif event.widget.extra == 'Widget TFM02':
abrir_janela('02', 2)
def salvar_alteracoes():
print('THIS FUNCTION IS SUPPOSED TO PASS CHANGES TO PARENT WINDOW')
def abrir_janela(num_tfm, ref): # opens a new window to alter tank info
def manter_selecao_ceva(event):
global ceva_tqs
ceva_tqs[referencia] = opcao_ceva.get()
print(ceva_tqs[referencia])
def manter_selecao_status(event):
global status_tqs
status_tqs[referencia] = opcao_status.get()
print(status_tqs[referencia])
referencia = int(ref)
janela = tk.Toplevel(adega_grande)
janela.title('TFM-' + num_tfm)
janela.geometry('550x300')
tfm = Image.open(img_tqs[referencia])
tfm.thumbnail((300, 300), Image.ANTIALIAS)
photo_tfm = ImageTk.PhotoImage(tfm, master=janela)
label_tfm = tk.Label(image=photo_tfm, borderwidth=0, highlightthickness=0, master=janela)
label_tfm.image = photo_tfm
label_tfm.grid(column=1, rowspan=20, row=1)
qual_tfm = tk.Label(master=janela, text='TFM-' + num_tfm, font='Arial 24 bold')
qual_tfm.grid(column=2, row=1)
ceva = tk.Label(master=janela, text='Cerveja: ', font='Arial 20 bold')
ceva.grid(column=2, row=2, sticky='W')
ceva_selecionada = 'Ceva selecionada'
opcao_ceva = ttk.Combobox(master=janela, values=cervs_factory, state='readonly', textvariable=ceva_selecionada)
opcao_ceva.grid(column=3, row=2)
opcao_ceva.bind("<<ComboboxSelected>>", manter_selecao_ceva)
status = tk.Label(master=janela, text='Status: ', font='Arial 20 bold')
status.grid(column=2, row=3, sticky='W')
status_selecionado = 'Status selecionado'
opcao_status = ttk.Combobox(master=janela, values=('Fermentando', 'Maturando'), state='readonly', textvariable=status_selecionado)
opcao_status.grid(column=3, row=3)
opcao_status.bind("<<ComboboxSelected>>", manter_selecao_status)
botao_salvar_alteracoes = tk.Button(master=janela, text="Salvar alterações no TFM", command=salvar_alteracoes)
botao_salvar_alteracoes.grid(column=2, columnspan=2, row=4)
# creates main window and tabs (there are 22 smaller tanks to be added later on second tab)
gui = tk.Tk()
gui.configure(background="white")
gui.title("Acompanhamento de adegas")
abas = tk.ttk.Notebook(gui)
adega_grande = tk.Frame(abas)
adega_pequena = tk.Frame(abas)
abas.add(adega_grande, text='Adega Grande')
abas.add(adega_pequena, text='Adega pequena')
abas.grid()
# list of all kinds of beer produced in the factory
cervs_factory = ('VAZIO', 'Weiss', 'Vienna Lager')
# list of images to show on the tanks
img_tqs = ["",
"tq cheio Beer 1.png", # TFM-01
"tq cheio Beer 2.png", # TFM-02
] # TFM-12
# list of which beer is currently on each tank
ceva_tqs = ["",
cervs_factory[1], # TFM-01
cervs_factory[2]] # TFM-02
# list of tank current status Fermenting/Maturing
status_tqs = ["",
'Fermentando', # TFM-01
'Maturando', # TFM-02
] # TFM-12
# ~~~~ TFM's Adega Grande ~~~~ #
font_titulo_tfm = 'Arial 14 bold' # altera fonte e tamanho dos títulos dos TFM's
font_cerv_e_status = 'Arial 12 bold' # altera fonte e tamanho do tipo de cerveja e status dos TFM's
tamanho_img_tqs = (250, 250) # altera o tamanho das imagens dos TFM's, só considera o menor valor
tfm01 = Image.open(img_tqs[1])
tfm01.thumbnail(tamanho_img_tqs, Image.ANTIALIAS)
photo_tfm01 = ImageTk.PhotoImage(tfm01)
label_tfm01 = tk.Label(adega_grande, image=photo_tfm01, borderwidth=0, highlightthickness=0)
label_tfm01.grid(column=1, row=0)
legenda_tfm01 = tk.Label(adega_grande, text='TFM-01', font=font_titulo_tfm)
legenda_tfm01.grid(column=1, row=1)
ceva01 = tk.Label(adega_grande, text=ceva_tqs[1], font=font_cerv_e_status)
ceva01.grid(column=1, row=2)
status01 = tk.Label(adega_grande, text=status_tqs[1], font=font_cerv_e_status, fg='green')
status01.grid(column=1, row=3)
label_tfm01.bind('<Double-Button-1>', click_duplo_tfm)
label_tfm01.extra = "Widget TFM01"
tfm02 = Image.open(img_tqs[2])
tfm02.thumbnail(tamanho_img_tqs, Image.ANTIALIAS)
photo_tfm02 = ImageTk.PhotoImage(tfm02)
label_tfm02 = tk.Label(adega_grande, image=photo_tfm02, borderwidth=0, highlightthickness=0)
label_tfm02.grid(column=2, row=0)
legenda_tfm02 = tk.Label(adega_grande, text='TFM-02', font=font_titulo_tfm)
legenda_tfm02.grid(column=2, row=1)
ceva02 = tk.Label(adega_grande, text=ceva_tqs[2], font=font_cerv_e_status)
ceva02.grid(column=2, row=2)
status02 = tk.Label(adega_grande, text=status_tqs[2], font=font_cerv_e_status, fg='blue')
status02.grid(column=2, row=3)
label_tfm02.bind('<Double-Button-1>', click_duplo_tfm)
label_tfm02.extra = "Widget TFM02"
abas.mainloop()
如果我的问题/代码过长,我希望能被原谅,我对编码非常陌生,这是我第一次寻求帮助。英文也不太流利,但是我想你们在这里明白了我的问题。预先感谢您的任何见解。
答案 0 :(得分:1)
如果使用类,确实确实容易得多,但是使用当前方法仍然可以实现。
基本上,您首先需要将品牌/状态标签存储到容器中(例如list
),然后在生成Toplevel
小部件时传递索引,以便您知道需要哪些标签修改。下面是一个最小样本:
import tkinter as tk
from tkinter import ttk
from itertools import cycle
root = tk.Tk()
brands = ('VAZIO', 'Weiss', 'Vienna Lager')
status = ("Fermenting","Maturing")
beer_factory = cycle(brands)
beer_status = cycle(status)
beer = []
for i in range(6):
a = tk.Label(root,text=f"TFM-0{i+1}",width=20)
a.grid(row=0,column=i)
b = tk.Label(root, text=next(beer_factory))
b.grid(row=1, column=i)
c = tk.Label(root, text=next(beer_status))
c.grid(row=2, column=i)
a.bind('<Double-Button-1>', lambda e, i=i: toplevel(e,i))
beer.append([a,b,c])
def toplevel(event, i):
top = tk.Toplevel()
tk.Label(top,text="Beer factory").grid(row=0,column=0)
tk.Label(top, text="Status").grid(row=1, column=0)
com1 = ttk.Combobox(top,values=brands,state="readonly")
com1.set(beer[i][1]["text"])
com1.grid(row=0,column=1)
com2 = ttk.Combobox(top,values=status,state="readonly")
com2.set(beer[i][2]["text"])
com2.grid(row=1,column=1)
def finish():
beer[i][1].config(text=com1.get())
beer[i][2].config(text=com2.get())
top.destroy()
tk.Button(top,text="Finish",command=finish).grid(row=3,column=0,columnspan=2)
root.mainloop()
<Double-Button-1>
事件绑定到标签TFM-0X。