/usr/lib/python3.6/idlelib/textview.py is in idle-python3.6 3.6.5-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | """Simple text browser for IDLE
"""
from tkinter import Toplevel, Text
from tkinter.ttk import Frame, Scrollbar, Button
from tkinter.messagebox import showerror
class TextFrame(Frame):
"Display text with scrollbar."
def __init__(self, parent, rawtext):
"""Create a frame for Textview.
parent - parent widget for this frame
rawtext - text to display
"""
super().__init__(parent)
self['relief'] = 'sunken'
self['height'] = 700
# TODO: get fg/bg from theme.
self.bg = '#ffffff'
self.fg = '#000000'
self.text = text = Text(self, wrap='word', highlightthickness=0,
fg=self.fg, bg=self.bg)
self.scroll = scroll = Scrollbar(self, orient='vertical',
takefocus=False, command=text.yview)
text['yscrollcommand'] = scroll.set
text.insert(0.0, rawtext)
text['state'] = 'disabled'
text.focus_set()
scroll.pack(side='right', fill='y')
text.pack(side='left', expand=True, fill='both')
class ViewFrame(Frame):
"Display TextFrame and Close button."
def __init__(self, parent, text):
super().__init__(parent)
self.parent = parent
self.bind('<Return>', self.ok)
self.bind('<Escape>', self.ok)
self.textframe = TextFrame(self, text)
self.button_ok = button_ok = Button(
self, text='Close', command=self.ok, takefocus=False)
self.textframe.pack(side='top', expand=True, fill='both')
button_ok.pack(side='bottom')
def ok(self, event=None):
"""Dismiss text viewer dialog."""
self.parent.destroy()
class ViewWindow(Toplevel):
"A simple text viewer dialog for IDLE."
def __init__(self, parent, title, text, modal=True,
*, _htest=False, _utest=False):
"""Show the given text in a scrollable window with a 'close' button.
If modal is left True, users cannot interact with other windows
until the textview window is closed.
parent - parent of this dialog
title - string which is title of popup dialog
text - text to display in dialog
_htest - bool; change box location when running htest.
_utest - bool; don't wait_window when running unittest.
"""
super().__init__(parent)
self['borderwidth'] = 5
# Place dialog below parent if running htest.
x = parent.winfo_rootx() + 10
y = parent.winfo_rooty() + (10 if not _htest else 100)
self.geometry(f'=750x500+{x}+{y}')
self.title(title)
self.viewframe = ViewFrame(self, text)
self.protocol("WM_DELETE_WINDOW", self.ok)
self.button_ok = button_ok = Button(self, text='Close',
command=self.ok, takefocus=False)
self.viewframe.pack(side='top', expand=True, fill='both')
if modal:
self.transient(parent)
self.grab_set()
if not _utest:
self.wait_window()
def ok(self, event=None):
"""Dismiss text viewer dialog."""
self.destroy()
def view_text(parent, title, text, modal=True, _utest=False):
"""Create text viewer for given text.
parent - parent of this dialog
title - string which is the title of popup dialog
text - text to display in this dialog
modal - controls if users can interact with other windows while this
dialog is displayed
_utest - bool; controls wait_window on unittest
"""
return ViewWindow(parent, title, text, modal, _utest=_utest)
def view_file(parent, title, filename, encoding, modal=True, _utest=False):
"""Create text viewer for text in filename.
Return error message if file cannot be read. Otherwise calls view_text
with contents of the file.
"""
try:
with open(filename, 'r', encoding=encoding) as file:
contents = file.read()
except OSError:
showerror(title='File Load Error',
message=f'Unable to load file {filename!r} .',
parent=parent)
except UnicodeDecodeError as err:
showerror(title='Unicode Decode Error',
message=str(err),
parent=parent)
else:
return view_text(parent, title, contents, modal, _utest=_utest)
return None
if __name__ == '__main__':
import unittest
unittest.main('idlelib.idle_test.test_textview', verbosity=2, exit=False)
from idlelib.idle_test.htest import run
run(ViewWindow)
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