Tkinter reference: a GUI for Python |  |
Tkinter reference: a GUI for Python | |
The tabs option for
Text widgets gives you a number of
ways to set tab stops within the widget.
The default is to place tabs every eight characters.
To set specific tab stops, set this option to a
sequence of one or more distances. For example,
setting tabs=("3c", "5c",
"12c") would put tab stops 3, 5, and 12cm
from the left side. Past the last tab you set, tabs
have the same width as the distance between the last
two existing tab stops. So, continuing our example,
because 12c-5c is 7 cm, if the
user keeps pressing the Tab key, the
cursor would be positioned at 19cm, 26cm, 33cm, and
so on.
Normally, text after a tab character is aligned
with its left edge on the tab stop, but you can
include any of the keywords
LEFT,
RIGHT,
CENTER, or
NUMERIC in the list after a
distance, and that will change the positioning of the
text after each tab.
A LEFT tab stop has
the default behavior.
A RIGHT tab stop will
position the text so its right edge is on the
stop.
A CENTER tab will
center the following text on the tab
stop.
A NUMERIC tab stop
will place following text to the left of the stop
up until the first period
(".") in the
text—after that, the period will be
centered on the stop, and the rest of the text
will positioned to its right.
For example, setting tabs=("0.5i",
"0.8i", RIGHT, "1.2i", CENTER, "2i",
NUMERIC) would set four tab stops: a
left-aligned tab stop half an inch from the left
side, a right-aligned tab stop 0.8" from the left
side, a center-aligned tab stop 1.2" from the left,
and a numeric-aligned tab stop 2" from the
left.