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cpython/Lib/tkinter/scrolledtext.py at main · python/cpython · GitHub
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cpython
/
Lib
/
tkinter
/
scrolledtext.py
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63 lines (48 loc) · 2.02 KB
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cpython
/
Lib
/
tkinter
/
scrolledtext.py
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"""A ScrolledText widget feels like a text widget but also has a
vertical scroll bar on its right. (Later, options may be added to
add a horizontal bar as well, to make the bars disappear
automatically when not needed, to move them to the other side of the
window, etc.)
Configuration options are passed to the Text widget.
A Frame widget is inserted between the master and the text, to hold
the Scrollbar widget.
Most methods calls are inherited from the Text widget; Pack, Grid and
Place methods are redirected to the Frame widget however.
Pass use_ttk=True for the themed tkinter.ttk frame and scroll bar
instead of the classic tkinter widgets.
"""
from
tkinter
import
Frame
,
Text
,
Scrollbar
,
Pack
,
Grid
,
Place
,
ttk
from
tkinter
.
constants
import
RIGHT
,
LEFT
,
Y
,
BOTH
__all__
=
[
'ScrolledText'
]
class
ScrolledText
(
Text
):
def
__init__
(
self
,
master
=
None
,
*
,
use_ttk
=
False
,
**
kw
):
if
use_ttk
:
self
.
frame
=
ttk
.
Frame
(
master
)
self
.
vbar
=
ttk
.
Scrollbar
(
self
.
frame
)
else
:
self
.
frame
=
Frame
(
master
)
self
.
vbar
=
Scrollbar
(
self
.
frame
)
self
.
vbar
.
pack
(
side
=
RIGHT
,
fill
=
Y
)
kw
[
'yscrollcommand'
]
=
self
.
vbar
.
set
Text
.
__init__
(
self
,
self
.
frame
,
**
kw
)
self
.
pack
(
side
=
LEFT
,
fill
=
BOTH
,
expand
=
True
)
self
.
vbar
[
'command'
]
=
self
.
yview
# Copy geometry methods of self.frame without overriding Text
# methods -- hack!
text_meths
=
vars
(
Text
).
keys
()
methods
=
vars
(
Pack
).
keys
()
|
vars
(
Grid
).
keys
()
|
vars
(
Place
).
keys
()
methods
=
methods
.
difference
(
text_meths
)
for
m
in
methods
:
if
m
[
0
]
!=
'_'
and
m
!=
'config'
and
m
!=
'configure'
:
setattr
(
self
,
m
,
getattr
(
self
.
frame
,
m
))
def
__str__
(
self
):
return
str
(
self
.
frame
)
def
example
():
from
tkinter
.
constants
import
END
stext
=
ScrolledText
(
bg
=
'white'
,
height
=
10
)
stext
.
insert
(
END
,
__doc__
)
stext
.
pack
(
fill
=
BOTH
,
side
=
LEFT
,
expand
=
True
)
stext
.
focus_set
()
stext
.
mainloop
()
if
__name__
==
"__main__"
:
example
()
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