RustPython/Lib/tkinter/scrolledtext.py at main · RustPython/RustPython · GitHub

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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.

"""

from tkinter import Frame, Text, Scrollbar, Pack, Grid, Place

from tkinter.constants import RIGHT, LEFT, Y, BOTH

__all__ = ['ScrolledText']

class ScrolledText(Text):

def __init__(self, master=None, **kw):

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()

RustPython/Lib/tkinter/scrolledtext.py at main · RustPython/RustPython · GitHub

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