I am learning Tkinter and building a simple 8 puzzle game.
(Example: http://www.permadi.com/java/puzzle8/)
Each number is a Canvas object placed into a Frame using a grid layout. One of the objects is adding extra padding between the Canvas objects. I set the border width to the Canvas objects to -2 which solved some people's issue, but that only slightly reduced the extra padding for me. Setting this value to -4 begins to cut into my canvas area.
I am assuming that the grid layout's cells have some default padding or border width, but I have not found a way to remove it. Setting the padx, pady, ipadx, ipady values when calling grid() on the Canvas objects does not seem to help either.
Another weirdness I found was when making a border for my Canvas objects I used create_rectangle, but I had to start x_1 and y_1 at 4,4 instead of 0,0 or 2,2 which is what I would expect for a 2px border.
Here is my code. Any help/advice/workarounds/otherwise is greatly appreciated.
#!/usr/bin/python
from Tkinter import *
class Number(Canvas):
def __init__(self, master=None, number=1):
Canvas.__init__(self, master, width=100, height=100, bd=-2)
self.create_text(50, 50, text=str(number), anchor=CENTER)
self.create_rectangle(4, 4, 98, 98, width=2)
class Application(Frame):
def create_widgets(self):
self.playarea = Frame(self, width=300, height=300)
self.playarea.grid_propagate(0)
self.playarea.grid()
self.playarea.numbers = []
for number in xrange(1, 10):
num_obj = Number(self.playarea, number)
self.playarea.numbers.append(num_obj)
row = number // 3
col = number % 3
num_obj.grid(row=row, column=col)
def __init__(self, master=None):
Frame.__init__(self, master)
self.grid()
self.create_widgets()
def main():
app = Application()
app.master.title("Sample Application")
app.mainloop()
if __name__ == '__main__':
main()
