代码大量使用语法:**self.master.master.widget…
这是滥用self.master.master的程序结构中的错误…?
这是不好的做法吗?我应该用另一个函数来代替它吗?
from tkinter import Tk, Frame, Label, Spinbox, Listbox, StringVar
from tkinter import SINGLE, ANCHOR, END, S,N,E,W
class App(Frame):
def __init__(self, parents, *args, **kwargs):
Frame.__init__(self, parents, *args, kwargs)
frame_3 = B3_class (self)
frame_3 .pack()
#.........
#-------------------------
class B3_class(Frame):
def __init__(self, parents, *args, **kwargs):
Frame.__init__(self, parents, *args, kwargs)
#_____C O N T A I N E R:
self.frm_B3 = Frame (self, bg='#31343a', width=172, height=65)
self.frm_C1 = Frame (self, bg='#11161d', width=60, height=65)
self.label_filas = Label (self.frm_B3, width=18, bg='#11161d', fg='#969696', bd=2, anchor= E)
label_title = Label (self.frm_B3, text='Seleccione Mobil :', font=('Calibri',9,'bold'), bg='#31343a', fg='white', bd=0)
# self.label_miniature = Label (self.frm_C1, image=self.master.Miniatures[0], bd= 0)
# This label is a container for the images that are changing ...
self.listbox = Listbox_class (self.label_filas, width=11, height=1)
self.spinbox = Spinbox_class (self.frm_B3, width=13, bd=0)
#_____Position:
self.frm_B3 .grid (column=0, row=0, padx=0, pady=0)
self.frm_C1 .grid (column=1, row=0, padx=0, pady=0)
self.label_filas .grid (column=0, row=0, padx=(0,5), pady=(0,2), sticky=N)
label_title .grid (column=0, row=1, padx=10, pady=(0,0), sticky=W)
self.listbox .grid ( padx=(19,0), pady=(0,5), sticky=N)
self.spinbox .grid (column=0, row=2, padx=11, pady=(3,3), sticky=W)
#__________Propagación:
self.frm_B3 .grid_propagate(False)
self.frm_C1 .grid_propagate(False)
self.label_filas .grid_propagate(False)
self.listbox .grid_propagate(False)
def change_miniature(self):
pass # This function is responsible for changing the images of self.label_miniature,
# for reasons of verification the code was removed
#------------------------------------------
class Spinbox_class(Spinbox, B3_class):
def __init__(self, master, **args):
Spinbox.__init__(self, master, **args)
self.spinbox_variable = StringVar()
self.spinbox_values = ['Banana','Apple','Grapes','Lemon','Cherry'] ##################
self.config (values=self.spinbox_values,
textvariable=self.spinbox_variable,
justify='center',
wrap=True,
bd=0)
self.bind ('<Double-Button-1>', lambda *arg: self.delete(0, END))
self.bind ('<Return>', self.bind_listbox)
self.spinbox_variable .trace_add ('write', self.change_variable)
self.spinbox_variable .trace_add ('write', lambda *arg: self.spinbox_variable.set (self.spinbox_variable.get() .capitalize()))
def bind_listbox(self, event):
spinbox = self.get()
listbox = self.master.master.listbox.get(0)
if listbox != spinbox and listbox != '':
self.delete(0, END)
self.insert(0, listbox)
def change_variable(self, *args):
spinbox = self.get().capitalize()
if spinbox == '':
self.master.master.listbox .delete(0, END)
else:
list_new = []
for i in self.spinbox_values:
if spinbox in i:
list_new .append(i)
if list_new != []:
self.update(list_new)
if spinbox == 'As':
self.master.master.listbox .delete(0, 1)
self.master.master.change_miniature()
def update(self, list, *args):
self.master.master.listbox .delete(0, END)
for i in list:
self.master.master.listbox .insert(END, i)
if self.master.master.listbox .get(0) == self.spinbox_variable.get():
self.master.master.listbox .delete(0, END)
#------------------------------------------
class Listbox_class(Listbox, B3_class):
def __init__(self, master, **kwargs): #
Listbox.__init__(self, master, **kwargs)
self.config (font=('Calibri',9,'bold'),
bg='#11161d', fg='#00ff00',
highlightthickness=0, bd=0,
activestyle='none',
justify='center',
selectmode=SINGLE,
takefocus=0)
self.bind ('<<ListboxSelect>>', self.listbox_select)
def listbox_select(self, event):
selection = self.get(ANCHOR)
if self.get(0,END) != ():
self.master.master.master.spinbox .delete(0, END)
self.master.master.master.spinbox.insert(0, selection)
self.selection_clear(0,END)
self.after(100, lambda: self.master.master.master.spinbox.focus_set())
root = Tk()
root.geometry('250x130+200+200')
app = App (root)
app .pack()
root.mainloop()
好的，我不认为这是完美的，但它确实带来了一个显示。注意我是如何重新组织的。现在有一个类，派生自frame。该框架包含一个列表框和一个旋转框。注意这是如何简化的。再也没有提到"大师"了;任何地方。listbox和spinbox事件触发所有者对象中的方法，这是它们应该做的。这应该会助你一臂之力。
from tkinter import Tk, Frame, Label, Spinbox, Listbox, StringVar
from tkinter import SINGLE, ANCHOR, END, S,N,E,W
class B3_class(Frame):
def __init__(self, parents, *args, **kwargs):
Frame.__init__(self, parents, *args, kwargs)
#_____C O N T A I N E R:
self.frm_B3 = Frame (self, bg='#31343a', width=172, height=65)
self.frm_C1 = Frame (self, bg='#11161d', width=60, height=65)
self.label_filas = Label (self, width=18, bg='#11161d', fg='#969696', bd=2, anchor= E)
label_title = Label (self, text='Seleccione Mobil :', font=('Calibri',9,'bold'), bg='#31343a', fg='white', bd=0)
# self.label_miniature = Label (self.frm_C1, image=self.master.Miniatures[0], bd= 0)
# This label is a container for the images that are changing ...
# self.create_listbox(self.label_filas, width=11, height=1)
self.create_listbox(width=11, height=1)
self.create_spinbox(width=13, bd=0)
#_____Position:
self.frm_B3 .grid (column=0, row=0, padx=0, pady=0)
self.frm_C1 .grid (column=1, row=0, padx=0, pady=0)
self.label_filas .grid (column=0, row=0, padx=(0,5), pady=(0,2), sticky=N)
label_title .grid (column=0, row=1, padx=10, pady=(0,0), sticky=W)
self.listbox .grid ( padx=(19,0), pady=(0,5), sticky=N)
self.spinbox .grid (column=0, row=2, padx=11, pady=(3,3), sticky=W)
#__________Propagación:
self.frm_B3 .grid_propagate(False)
self.frm_C1 .grid_propagate(False)
self.label_filas .grid_propagate(False)
self.listbox.grid_propagate(False)
def update(self, list, *args):
self.listbox .delete(0, END)
for i in list:
self.listbox .insert(END, i)
if self.listbox .get(0) == self.spinbox_variable.get():
self.listbox .delete(0, END)
def change_miniature(self):
pass # This function is responsible for changing the images of self.label_miniature,
# for reasons of verification the code was removed
def change_variable(self, *args):
spinbox = self.get().capitalize()
if spinbox == '':
self.listbox .delete(0, END)
else:
list_new = []
for i in self.spinbox_values:
if spinbox in i:
list_new .append(i)
if list_new != []:
self.update(list_new)
if spinbox == 'As':
self.listbox .delete(0, 1)
self.change_miniature()
def create_spinbox(self, **args):
self.spinbox = Spinbox(self, **args)
self.spinbox_variable = StringVar()
self.spinbox_values = ['Banana','Apple','Grapes','Lemon','Cherry'] ##################
self.spinbox.config (values=self.spinbox_values,
textvariable=self.spinbox_variable,
justify='center',
wrap=True,
bd=0)
self.spinbox.bind ('<Double-Button-1>', lambda *arg: self.spinbox.delete(0, END))
self.spinbox.bind ('<Return>', self.bind_listbox)
self.spinbox_variable .trace_add ('write', self.change_variable)
self.spinbox_variable .trace_add ('write', lambda *arg: self.spinbox_variable.set (self.spinbox_variable.get() .capitalize()))
def bind_listbox(self, event):
spinbox = self.get()
listbox = self.listbox.get(0)
if listbox != spinbox and listbox != '':
self.spinbox.delete(0, END)
self.spinbox.insert(0, listbox)
def create_listbox(self, **kwargs):
self.listbox = Listbox(self, **kwargs)
self.listbox.config (font=('Calibri',9,'bold'),
bg='#11161d', fg='#00ff00',
highlightthickness=0, bd=0,
activestyle='none',
justify='center',
selectmode=SINGLE,
takefocus=0)
self.listbox.bind ('<<ListboxSelect>>', self.listbox_select)
def listbox_select(self, event):
selection = self.get(ANCHOR)
if self.get(0,END) != ():
self.spinbox .delete(0, END)
self.spinbox.insert(0, selection)
self.listbox.selection_clear(0,END)
self.after(100, lambda: self.spinbox.focus_set())
class App(Frame):
def __init__(self, parents, *args, **kwargs):
Frame.__init__(self, parents, *args, kwargs)
frame_3 = B3_class (self)
frame_3 .pack()
root = Tk()
root.geometry('250x130+200+200')
app = App (root)
app .pack()
root.mainloop()