tkinter如何调整文本相对于复选框图像的位置？

Question

是否可以将复选框描述移近复选框

character_set = LabelFrame(text=" Example ")

checkbtn0 = PhotoImage(file="example_off.png")
checkbtn1 = PhotoImage(file="example_on.png")

checktestbox = IntVar()

checktest = Label(character_set, image=checkbtn0)
checktest.bind("<Button-1>", Custom)
checktest.grid(padx=8, pady=4, row=0, column=0)

checktext = Label(character_set, text="Upper case (A-Z)")
checktext.grid(row=0, column=1)

character_set.pack(fill="both", expand="yes", padx=4, pady=4)

Answer 1

Question: adjust text position besides checkbox

相关的：

• customize-horizontal-padding-between-image-and-text-in-label

---

参考：

• The Tkinter Label Widget - ^{}

  compound=
  Controls how to combine text and image in the label. If this option is set to one of BOTTOM, LEFT, RIGHT, or TOP, the image is drawn besides the text.

• The Tkinter Place Geometry Manager

  place(**options)
  Used in specialized cases, most importantly, by compound widgets to position.

• The Tkinter Checkbutton Widget

  Checkbutton(parent, text=<str>, variable=<tk.VariableClasses>)
  The checkbutton widget is used to choose between two distinct values (usually switching something on or off).

---

1. 使用Frame、Label组合您自己的Checkbutton小部件

   class Checkbutton(tk.Frame):
       off_image = PhotoImage(...
       on_image = PhotoImage(...
   
       def __init__(self, parent, **kwargs):
           text = kwargs.pop('text', None)
           self.callback = kwargs.pop('callback', None)
           super().__init__(parent, **kwargs)
   
           self.chkbox = tk.Label(parent, image=Checkbutton.off_image)
           self.chkbox.grid(row=0, column=0)
           self.chkbox.bind("<Button-1>", self.on_click)
   
           self.label = tk.Label(parent, text=text)
           self.chkbox.grid(row=0, column=1)
   
       def on_click(self, event):
           # Implements exchanging image
           pass
   
   chkbtn = Checkbutton(root, text="Upper case (A-Z)", callback=Custom)
   chkbtn.grid(padx=8, pady=4, row=0, column=0)
   

2. 使用Label(..., compound='left')

   checktext = Label(root, image=checkbtn0, text="Upper case (A-Z)", compound='left')
   

3. 使用.place(x, y)

   checktest = Label(root, image=checkbtn0)
   checktest.place(x=..., y=...)
   
   checktext = Label(root, text="Upper case (A-Z)")
   checktext.place(x=..., y=...)
   

4. 从class tk.Checkbutton继承，使用您自己的图像
   看到这个答案：checkbutton different image

   class Checkbutton(tk.Checkbutton):
       off_image = PhotoImage(...
       on_image = PhotoImage(...
   
       def __init__(self, parent, **kwargs):
           self.var = tk.IntVar()
           super().__init__(parent, 
                            image=Checkbutton.off_image, 
                            selectimage=Checkbutton.on_image, 
                            indicatoron=False,
                            onvalue=1, offvalue=0, variable=self.var,
                            **kwargs)
   

Answer 2

您正在使用

checktest.grid(padx=8, pady=4, row=0, column=0)

这将在8 pixels的左右两侧添加Label

要减少甚至设置为0，请改用此选项：

checktest.grid(padx=(8,0), pady=4, row=0, column=0)

这允许在左侧和右侧填充不同的值

padx(a,b)

• a垫子在左边吗
• b垫子对吗

我要说的是padx在HTML中类似于左填充和右填充。
如果完全删除padx，则左填充和右填充将是zero