Tkinter 8.5 reference: a GUI for Python |  |
Tkinter 8.5 reference: a GUI for Python | |
This widget is the ttk version of Section 20, “The Radiobutton widget”. To create a ttk.Radiobutton widget as the child of a given parentoption.Radiobutton options”:
w= ttk.Radiobutton(parent,option=value, ...)
Table 55. ttk.Radiobutton options
class_
| The widget class name. This may be specified when the widget is created, but cannot be changed later. For an explanation of widget classes, see Section 27, “Standardizing appearance”. |
command
| A function to be called whenever the state of this radiobutton changes. |
compound
|
This option specifies the relative position of the image
relative to the text when you specify both. The value
may be tk.TOP (image above text), tk.BOTTOM (image below text), tk.LEFT (image to the left of the text), or
tk.RIGHT (image to the right of the
text). If you provide both image and
text options but do not specify a value
for compound, only the image will appear.
|
cursor
| The cursor that will appear when the mouse is over the radiobutton; see Section 5.8, “Cursors”. |
image
| An image to appear on the radiobutton; see Section 5.9, “Images”. |
style
| The style to be used in rendering this radiobutton; see Section 49, “Using and customizing ttk styles”. |
takefocus
|
By default, a ttk.Radiobutton will
be included in focus traversal; see Section 53, “Focus: routing keyboard input”. To remove the widget from focus
traversal, use takefocus=False.
|
text
| The text to appear next to the radiobutton, as a string. |
textvariable
| A variable that controls the text that appears on the radiobutton; see Section 52, “Control variables: the values behind the widgets”. |
underline
|
If this option has a nonnegative value n, an underline will appear under
the text character at position n.
|
value
| The value associated with this radiobutton. When the radiobutton is the one selected in the group, the value of this option will be stored in the control variable for the group. |
variable
|
A control variable that is shared by the other
radiobuttons in the group; see Section 52, “Control variables: the values behind the widgets”. The type of this
variable will be the same as the type you specify for
the value options for the radiobuttons
in the group.
|
width
|
Use this option to specify a fixed width or a minimum width. The value is specified in characters; a positive value sets a fixed width of that many average characters, while a negative width sets a minimum width.
You may also specify a |
These options of the Tkinter Radiobutton widget
are not supported by the ttk.Radiobutton constructor:
Table 56. ttk Radiobutton options not in
ttk.Radiobutton
activebackground
|
Use a style map to control the background option; see Section 50.2, “ttk style maps: dynamic appearance
changes”.
|
activeforeground
|
Use a style map to control the foreground option.
|
anchor
|
Configure this option using a style; see Section 49, “Using and customizing ttk styles”. Use this option to
specify the position of the text when the
For example, if you specify options When a radiobutton displays an image but no text, this option is ignored. |
background or bg
|
Configure the background option using a
style. The bg abbreviation is not
supported.
|
bitmap
| Not supported. |
borderwidth or bd
| Configure this option using a style. |
disabledforeground
|
Use a style map for the foreground
option; see Section 50.2, “ttk style maps: dynamic appearance
changes”.
|
font
| Configure this option using a style. |
foreground or fg
|
Configure the foreground option using a
style. The fg abbreviation is not
supported.
|
height
| Not supported. |
highlightbackground
|
To control the color of the focus highlight when the
menubutton does not have focus, use a style map to
control the highlightcolor option; see
Section 50.2, “ttk style maps: dynamic appearance
changes”.
|
highlightcolor
| You may specify the default focus highlight color by setting this option in a style. You may also control the focus highlight color using a style map. |
highlightthickness
| Configure this option using a style. |
indicatoron
| Not supported. |
justify
|
Controls how multiple lines are positioned
horizontally relative to each other. Configure
this option using a style; values may be tk.LEFT, tk.CENTER, or
tk.RIGHT for left-aligned, centered,
or right-aligned, respectively.
|
offrelief
| Not supported. |
overrelief
| Not supported. |
padx
| Not supported. |
pady
| Not supported. |
relief
| Configure this option using a style. |
selectcolor
| Not supported. |
selectimage
| Not supported. |
state
| In ttk, there is no option with this name. The state mechanism has been generalized; see Section 50.2, “ttk style maps: dynamic appearance changes”. |
wraplength
|
If you use a style that has this option set to some
dimension, the text will be sliced into pieces no longer than
that dimension.
|
Methods on a ttk.Radiobutton include all
those described in Section 46, “Methods common to all ttk widgets”, plus:
.invoke()
When you call this method on a ttk.Radiobutton, the result is the same as if the
user clicked on it: the indicator is set and the
associated variable is set to the
radiobutton's value. If there is a command associated with this radiobutton, that
function is called, and the .invoke()
method returns whatever the function returned; otherwise
it returns None.