CODEWITHSUNDEEP
pythonuser-interfacetkinter
JuanLanuza
JuanLanuza

Reputation: 41

Python Tkinter - Update while funtion in running

I'm learning Tkinter by making a GUI for a sudoku solver program (that was arleady built).

On the click of a button, the algorithm that solves the sudoku runs and sometimes it takes some time.

How could I update the sudoku on the screen when the function is called, so that users can see how its running?

I'm working with a gui script separate from the sudoku one, is it correct, in design terms, to have the gui and the logic separate?

Thank in advance

EDIT

This is my code:

Sudoku.py

class Sudoku(object):
    def __init__(self):
        self.__matrix = [[(0, Status.Guess) for x in range(9)] for y in range(9)]
    ...
    def solveSudoku(self):
        ...

GUI.py

class App:

    def __init__(self, master, su):
        self.__sudoku__ = su
        self.__root__ = master
        self.__entries__ = {}
        fsudoku = Frame(master)
        fsudoku.grid(row=0)
        self.displaysudoku(fsudoku) """grid of entrys"""
        tButton = Button(master,text="Solve", command=self.SolveAndDisplay)
        ...

    def refreshSudokuGrid(self):
        """USED AFTER SOLVING A SUDOKU"""
        for i in range(1,10):
            for j in range(1,10):
                val = self.__sudoku__.value(i,j)
                self.__entries__[i * 10 +j].delete(0, END)
                if (val!= 0):
                    self.__entries__[i * 10 + j].insert(0, val)
    def SolveAndDisplay(self):
        self.scanSudoku()
        self.__sudoku__.solveSudoku()
        self.refreshSudokuGrid()
    ...

root = Tk()
su = Sudoku()
s = App(root, su)
root.mainloop()

Upvotes: 2

Views: 2364

Answers (1)

sjana
sjana

Reputation: 64

I guess you must be using some loop which solves the sudoku.If this is true:

The place where your function/command for your button is defined, place the following code at the beginning of the primary loop which solves the sudoku (assuming root is your tkinter window):

root.update()

As such such a method is not fully threadsafe, but should solve the problem for general cases like yours.

Keeping GUI and logic separate is the best practice.

Upvotes: 1

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