ProgressDialog.py

from MasyuDialog import *
import tkinter as tk
from threading import Thread
from PuzzleBoard import *
from CanvasManager import *

# This class is for a debugging modal dialog, which can be used
# to display the interim results produced during the solving process.
# While displayed, the solving process is suspended, until this
# dialog has been closed.
class ProgressDialog(MasyuDialog):
    def __init__(self, parentWindow, puzzleBoard, cancelEvent, resumeEvent):
        super().__init__(parentWindow)
        self.__puzzleBoard = puzzleBoard
        self.__cancelEvent = cancelEvent
        self.__resumeEvent = resumeEvent

    def cancelHandler(self):
        self.__cancelButton['state'] = tk.DISABLED
        self.__cancelEvent.set()
        self.__toplevel.destroy()

    def resumeHandler(self):
        self.__resumeButton['state'] = tk.DISABLED
        self.__resumeEvent.set()
        self.__toplevel.destroy()

    def showDialog(self):
        self.__toplevel = tk.Toplevel()
        self.__toplevel.protocol("WM_DELETE_WINDOW", self.cancelHandler)
        puzzleBoardFrame = tk.Frame(master=self.__toplevel, relief=tk.RAISED, highlightthickness=0, borderwidth=10)
        puzzleBoardFrame.grid(row=0, column=0)

        # Create the Canvas in which the Puzzle Board will be drawn
        self.__puzzleBoardCanvas = tk.Canvas(master=puzzleBoardFrame, height=300, width=300,
                                      highlightthickness=0, relief=tk.FLAT, borderwidth=0)
        self.__puzzleBoardCanvas.grid(row=0, column=0)

        self.__canvasManager = CanvasManager(self.__puzzleBoardCanvas, True, True, True)
        self.__canvasManager.registerPuzzleBoard(self.__puzzleBoard)

        buttonFrame = tk.Frame(master=self.__toplevel, relief=tk.RAISED, borderwidth=0)
        buttonFrame.grid(row=1, column=0)
        self.__cancelButton = tk.Button(buttonFrame, text="Cancel", command=self.cancelHandler, width=10)
        self.__cancelButton.grid(row=0, column=0, padx=(2, 35), pady=(15, 15), sticky="e")
        self.__resumeButton = tk.Button(buttonFrame, text="Resume", command=self.resumeHandler, width=10)
        self.__resumeButton.grid(row=0, column=1, padx=(2, 35), pady=(15, 15), sticky="e")

        super().showDialog(self.__toplevel)

if __name__ == '__main__':

    def showDialog():
        pb = PuzzleBoard(size=(10,10))
        progressDialog = ProgressDialog(mainWindow, pb, None, None)
        progressDialog.showDialog()

    mainWindow = tk.Tk()
    mainWindow.title('Dialog Test')

    showDialogButton = tk.Button(master=mainWindow, text="Show Dialog", command=showDialog)
    showDialogButton.grid(row=0, column=0)

    mainWindow.mainloop()