I do have a little problem here. It's about the exchange of variables of a label in TKinter. My program won't refresh the values.
class Application(Frame):
def __init__(self,parent,**kw):
Frame.__init__(self,parent,**kw)
self.x = None
self.directory = None
self.autostate = None
self.state = "closed"
self.GUI2()
def state(self):
#change states
self.stateVar="open"
self.statusbar = "Status: Opening gate..."
#update tkinter
self.group.update_idletasks()
self.w.update_idletasks()
def GUI2(self):
self.statusbar = "Status:..."
# menu left
self.menu_left = tk.Frame(root, width=150, bg="red", bd=1, relief=RIDGE)
self.menu_left_upper = tk.Frame(self.menu_left, width=300, height=900, bg="#C0C0C0")
self.menu_left_lower = tk.Frame(self.menu_left, width=300, bd=1, relief=GROOVE)
self.label1 = tk.Label(self.menu_left_lower, relief=FLAT, bg="blue" )
self.button1 = Button(self.menu_left_lower, text="RUN")
self.test = tk.Label(self.menu_left_upper, text="info", bg="#C0C0C0")
self.menu_left_upper.pack(side="top", fill="both", expand=TRUE)
self.menu_left_lower.pack(side="top", fill="both", expand=FALSE)
# right area
self.some_title_frame = tk.Frame(root, bg="#dfdfdf", bd=1, relief=RIDGE)
self.some_title = tk.Label(self.some_title_frame, text="some title", bg="#dfdfdf")
self.text_area = Listbox(root, width=50, height=10, background="#ffffff", relief=GROOVE)
#Label and Button
self.group = LabelFrame(self.menu_left_upper, text="info", height=70)
self.group.pack(side="top", fill="both", expand=TRUE)
Button(self.menu_left_lower, text='Press', command=self.state).pack(side="bottom")
self.w = Label(self.group, text='State='+self.stateVar) #text printed!
self.w.pack(expand=TRUE)
# status bar
self.status_frame = tk.Frame(root)
self.status = tk.Label(self.status_frame, text=self.statusbar, bd=1, relief=SUNKEN) #statusbar printed here
self.status.pack(fill="both", expand=True)
self.menu_left.grid(row=0, column=0, rowspan=2, sticky="nsew")
self.status_frame.grid(row=2, column=0, columnspan=2, sticky="ew")
root.grid_rowconfigure(1, weight=1)
root.grid_columnconfigure(1, weight=1)
#Starts the main loop and causes the class to interact with the init function
if __name__ == '__main__':
root = Tk()
root.title("simulation")
app = Application(root)
app.grid()
root.mainloop()
Here you can see the whole code.
It's important to check # tab1 in there will be the button. This button refers to the def state(self): This one needs to change the label and the statusbar. which are packed in self.w and self.status in the program I added a #text printed! after the line.
Below is an example program that should help you figure out how to change the text of labels. They key thing is creating a StringVar and pointing the label towards this so that the label is updated when the StringVar is.
from Tkinter import *
class Application(Frame):
def __init__(self,parent,**kw):
Frame.__init__(self,parent,**kw)
# Create a String variable to store our status string
self.stateVar = StringVar()
self.stateVar.set("Initial Value")
# Create a label to display the status
self.label1 = Label(textvariable=self.stateVar)
self.label1.grid()
# Create a button which will change the status
self.button = Button(text="Press me", command=self.change)
self.button.grid()
def change(self):
"""Called when the button is pressed"""
self.stateVar.set('You pressed the button')
if __name__ == '__main__':
root = Tk()
root.title("simulation")
app = Application(root)
app.grid()
root.mainloop()