Question

I am actually learning Tkinter and I want to do a window looking like this (tetris GUI) : image So I want to do a 20x15 grid (h x w) with a tile size of 25px (so 500px x 375px playArea size) So here is the code I made :

from tkinter import *
from random import randint

root = Tk()
root.resizable(False, False)

# PLAYAREA SIZE
HEIGHT = 500
WIDTH = HEIGHT // 2
TILE_SIZE = 25

playarea = Canvas(root, width=WIDTH, height=HEIGHT, bg='yellow')
playarea.grid(column=6, row=0, columnspan=WIDTH // TILE_SIZE, rowspan=HEIGHT // TILE_SIZE)


menuFrame=Frame(root, width=(WIDTH // 2), height=HEIGHT).grid(column=0, row=0, columnspan= (WIDTH // 2) // TILE_SIZE , rowspan= int(HEIGHT / TILE_SIZE))
newGameButton = Button(menuFrame, text='Start', width= 75 , height = 1 * TILE_SIZE)
newGameButton.grid(column=1, row=1,columnspan=3, rowspan= 1)
newTestButton = Button(menuFrame, text='Test', width= 5 * TILE_SIZE, height = 1* TILE_SIZE)
newTestButton.grid(column=0, row=2, columnspan=5, rowspan=1)
root.update()

print(newGameButton.winfo_width())
print(playarea.grid_size())
#print(playarea.grid_info())

root.mainloop()

I use HEIGHT and WIDTH variables to define the size of my canvas and my TILE_SIZE variable to define te amount of tile is needed (to configure columnspan and rowspan) my first problem is that my :

print(playarea.grid_size())

Return (0,0), as I configured columnspan and rowspan it should return me (10,20), no ?

Then the other one issue is with my buttons, here I created two buttons (newGame and test), I want the newGame to be 75px wide (or 3 * TILE_SIZE) but when I run it (for both of width = 75 and width = 3 * TILE_SIZE) the

print(newGameButton.winfo_width())

Return me 617px and the button is huge, I don't understand why, can someone explain how grid works ? What's causing this.

Answer 1

print(playarea.grid_size())

返回（0,0），因为我配置了columnpan和rowspan，它应该返回我（10,20），不是吗？

不。 grid_size返回网格的大小（行和列数）。根据官方的tcl / tk文档，这就是计算值的方式：

“大小是由从属设备占用最大的行或列，或者是最小大小，权重或填充不为零的最大的列或行来确定的。”

在您的特定情况下，您仅将小部件放在第0行第0列中，因此报告的(0,0)的大小是正确的。

print(newGameButton.winfo_width())

返回我617像素，按钮很大，我不明白为什么，有人可以解释网格的工作原理吗？是什么原因造成的。

创建带有文本但没有图像的按钮时，width被解释为许多字符而不是 pixels 。

Tkinter grid and widget size

1 个答案: