Python 调整Tkinter窗口大小时的行位置
以下代码:Python 调整Tkinter窗口大小时的行位置,python,python-3.x,tkinter,python-3.6,Python,Python 3.x,Tkinter,Python 3.6,以下代码: from tkinter import * root=Tk() for x in range(10): for y in range(10): canvas=Canvas(root, width='15',height='15',highlightthickness=0,bg='red') canvas.create_line(canvas.winfo_x(),canvas.winfo_y(),can
from tkinter import *
root=Tk()
for x in range(10):
for y in range(10):
canvas=Canvas(root, width='15',height='15',highlightthickness=0,bg='red')
canvas.create_line(canvas.winfo_x(),canvas.winfo_y(),canvas.winfo_x()+15,canvas.winfo_y()+15,width=2,fill='black')
canvas.grid(row=y,column=x,sticky='NESW')
for x in range(10):
for y in range(10):
root.columnconfigure(x,weight=1)
root.rowconfigure(y,weight=1)
root.mainloop()
生产,这是一个10乘10网格充满画布;有一条线从每个画布的左上角延伸到右下角
当我调整窗口大小时,画布小部件可以正确调整大小,但线条保持其形状。行需要根据窗口/小部件大小进行调整
问题的核心是,这些线是使用小部件左上角的坐标绘制的,并且在每个方向上扩展了15个像素。是否有一种方法可以获取小部件右下角的坐标,以便线条可以动态更改其形状,或者有其他方法可以保持线条形状,相对于小部件?您可以使用winfo_width和winfo_height方法获取任何小部件的当前宽度和高度。如果绑定到画布更改大小时要跟踪的方法,则事件对象具有宽度和高度属性 例如:
from tkinter import *
def redraw_line(event):
width = event.width
height = event.height
canvas = event.widget
canvas.coords("diagonal", 0, 0, width, height)
root=Tk()
for x in range(10):
for y in range(10):
canvas=Canvas(root, width='15',height='15',highlightthickness=0,bg='red')
canvas.bind("<Configure>", redraw_line)
# coordinates are irrelevant; they will change as soon as
# the widget is mapped to the screen.
canvas.create_line(0,0,0,0, tags=("diagonal",))
canvas.grid(row=y,column=x,sticky='NESW')
for x in range(10):
for y in range(10):
root.columnconfigure(x,weight=1)
root.rowconfigure(y,weight=1)
root.mainloop()