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bpo-37628: Fix IDLE config sample sizes (GH-14958) 

The boxes for the font and highlight samples are now constrained by the overall config dialog size.  They gain scrollbars when the when a large font size makes the samples too large for the box.
(cherry picked from commit 3221a63c69)

Co-authored-by: Tal Einat <taleinat+github@gmail.com>
This commit is contained in:
Miss Islington (bot) 2019-07-27 10:19:12 -07:00 committed by GitHub
parent d38fa58695
commit 171019354a
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 129 additions and 51 deletions
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24
Lib/idlelib/configdialog.py
View File

@ -33,6 +33,7 @@ from idlelib.codecontext import CodeContext
from idlelib.parenmatch import ParenMatch
from idlelib.format import FormatParagraph
from idlelib.squeezer import Squeezer
from idlelib.textview import ScrollableTextFrame
changes = ConfigChanges()
# Reload changed options in the following classes.
@ -556,7 +557,9 @@ class FontPage(Frame):
frame_font_param, variable=self.font_bold,
onvalue=1, offvalue=0, text='Bold')
# frame_sample.
self.font_sample = Text(frame_sample, width=20, height=20)
font_sample_frame = ScrollableTextFrame(frame_sample)
self.font_sample = font_sample_frame.text
self.font_sample.config(wrap=NONE, width=1, height=1)
self.font_sample.insert(END, font_sample_text)
# frame_indent.
indent_title = Label(
@ -568,8 +571,9 @@ class FontPage(Frame):
# Grid and pack widgets:
self.columnconfigure(1, weight=1)
self.rowconfigure(2, weight=1)
frame_font.grid(row=0, column=0, padx=5, pady=5)
frame_sample.grid(row=0, column=1, rowspan=2, padx=5, pady=5,
frame_sample.grid(row=0, column=1, rowspan=3, padx=5, pady=5,
sticky='nsew')
frame_indent.grid(row=1, column=0, padx=5, pady=5, sticky='ew')
# frame_font.
@ -582,7 +586,7 @@ class FontPage(Frame):
self.sizelist.pack(side=LEFT, anchor=W)
self.bold_toggle.pack(side=LEFT, anchor=W, padx=20)
# frame_sample.
self.font_sample.pack(expand=TRUE, fill=BOTH)
font_sample_frame.pack(expand=TRUE, fill=BOTH)
# frame_indent.
indent_title.pack(side=TOP, anchor=W, padx=5)
self.indent_scale.pack(side=TOP, padx=5, fill=X)
@ -840,9 +844,11 @@ class HighPage(Frame):
frame_theme = LabelFrame(self, borderwidth=2, relief=GROOVE,
text=' Highlighting Theme ')
# frame_custom.
text = self.highlight_sample = Text(
frame_custom, relief=SOLID, borderwidth=1,
font=('courier', 12, ''), cursor='hand2', width=21, height=13,
sample_frame = ScrollableTextFrame(
frame_custom, relief=SOLID, borderwidth=1)
text = self.highlight_sample = sample_frame.text
text.configure(
font=('courier', 12, ''), cursor='hand2', width=1, height=1,
takefocus=FALSE, highlightthickness=0, wrap=NONE)
text.bind('<Double-Button-1>', lambda e: 'break')
text.bind('<B1-Motion>', lambda e: 'break')
@ -868,7 +874,7 @@ class HighPage(Frame):
for texttag in text_and_tags:
text.insert(END, texttag[0], texttag[1])
n_lines = len(text.get('1.0', END).splitlines())
for lineno in range(1, n_lines + 1):
for lineno in range(1, n_lines):
text.insert(f'{lineno}.0',
f'{lineno:{len(str(n_lines))}d} ',
'linenumber')
@ -920,9 +926,9 @@ class HighPage(Frame):
frame_custom.pack(side=LEFT, padx=5, pady=5, expand=TRUE, fill=BOTH)
frame_theme.pack(side=TOP, padx=5, pady=5, fill=X)
# frame_custom.
self.frame_color_set.pack(side=TOP, padx=5, pady=5, expand=TRUE, fill=X)
self.frame_color_set.pack(side=TOP, padx=5, pady=5, fill=X)
frame_fg_bg_toggle.pack(side=TOP, padx=5, pady=0)
self.highlight_sample.pack(
sample_frame.pack(
side=TOP, padx=5, pady=5, expand=TRUE, fill=BOTH)
self.button_set_color.pack(side=TOP, expand=TRUE, fill=X, padx=8, pady=4)
self.targetlist.pack(side=TOP, expand=TRUE, fill=X, padx=8, pady=3)

2
Lib/idlelib/idle_test/htest.py
View File

@ -349,7 +349,7 @@ _undo_delegator_spec = {
ViewWindow_spec = {
'file': 'textview',
'kwds': {'title': 'Test textview',
'text': 'The quick brown fox jumps over the lazy dog.\n'*35,
'contents': 'The quick brown fox jumps over the lazy dog.\n'*35,
'_htest': True},
'msg': "Test for read-only property of text.\n"
"Select text, scroll window, close"

60
Lib/idlelib/idle_test/test_textview.py
View File

@ -6,12 +6,12 @@ Using mock Text would not change this. Other mocks are used to retrieve
information about calls.
"""
from idlelib import textview as tv
import unittest
from test.support import requires
requires('gui')
import os
from tkinter import Tk
import unittest
from tkinter import Tk, TclError, CHAR, NONE, WORD
from tkinter.ttk import Button
from idlelib.idle_test.mock_idle import Func
from idlelib.idle_test.mock_tk import Mbox_func
@ -69,13 +69,65 @@ class ViewWindowTest(unittest.TestCase):
view.destroy()
class TextFrameTest(unittest.TestCase):
class AutoHideScrollbarTest(unittest.TestCase):
# Method set is tested in ScrollableTextFrameTest
def test_forbidden_geometry(self):
scroll = tv.AutoHideScrollbar(root)
self.assertRaises(TclError, scroll.pack)
self.assertRaises(TclError, scroll.place)
class ScrollableTextFrameTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.root = root = Tk()
root.withdraw()
cls.frame = tv.TextFrame(root, 'test text')
@classmethod
def tearDownClass(cls):
cls.root.update_idletasks()
cls.root.destroy()
del cls.root
def make_frame(self, wrap=NONE, **kwargs):
frame = tv.ScrollableTextFrame(self.root, wrap=wrap, **kwargs)
def cleanup_frame():
frame.update_idletasks()
frame.destroy()
self.addCleanup(cleanup_frame)
return frame
def test_line1(self):
frame = self.make_frame()
frame.text.insert('1.0', 'test text')
self.assertEqual(frame.text.get('1.0', '1.end'), 'test text')
def test_horiz_scrollbar(self):
# The horizontal scrollbar should be shown/hidden according to
# the 'wrap' setting: It should only be shown when 'wrap' is
# set to NONE.
# wrap = NONE -> with horizontal scrolling
frame = self.make_frame(wrap=NONE)
self.assertEqual(frame.text.cget('wrap'), NONE)
self.assertIsNotNone(frame.xscroll)
# wrap != NONE -> no horizontal scrolling
for wrap in [CHAR, WORD]:
with self.subTest(wrap=wrap):
frame = self.make_frame(wrap=wrap)
self.assertEqual(frame.text.cget('wrap'), wrap)
self.assertIsNone(frame.xscroll)
class ViewFrameTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
cls.root = root = Tk()
root.withdraw()
cls.frame = tv.ViewFrame(root, 'test text')
@classmethod
def tearDownClass(cls):

93
Lib/idlelib/textview.py
View File

@ -2,14 +2,15 @@
"""
from tkinter import Toplevel, Text, TclError,\
HORIZONTAL, VERTICAL, N, S, E, W
HORIZONTAL, VERTICAL, NS, EW, NSEW, NONE, WORD, SUNKEN
from tkinter.ttk import Frame, Scrollbar, Button
from tkinter.messagebox import showerror
from functools import update_wrapper
from idlelib.colorizer import color_config
class AutoHiddenScrollbar(Scrollbar):
class AutoHideScrollbar(Scrollbar):
"""A scrollbar that is automatically hidden when not needed.
Only the grid geometry manager is supported.
@ -28,52 +29,70 @@ class AutoHiddenScrollbar(Scrollbar):
raise TclError(f'{self.__class__.__name__} does not support "place"')
class TextFrame(Frame):
"Display text with scrollbar."
class ScrollableTextFrame(Frame):
"""Display text with scrollbar(s)."""
def __init__(self, parent, rawtext, wrap='word'):
def __init__(self, master, wrap=NONE, **kwargs):
"""Create a frame for Textview.
parent - parent widget for this frame
rawtext - text to display
"""
super().__init__(parent)
self['relief'] = 'sunken'
self['height'] = 700
master - master widget for this frame
wrap - type of text wrapping to use ('word', 'char' or 'none')
self.text = text = Text(self, wrap=wrap, highlightthickness=0)
color_config(text)
text.grid(row=0, column=0, sticky=N+S+E+W)
All parameters except for 'wrap' are passed to Frame.__init__().
The Text widget is accessible via the 'text' attribute.
Note: Changing the wrapping mode of the text widget after
instantiation is not supported.
"""
super().__init__(master, **kwargs)
text = self.text = Text(self, wrap=wrap)
text.grid(row=0, column=0, sticky=NSEW)
self.grid_rowconfigure(0, weight=1)
self.grid_columnconfigure(0, weight=1)
text.insert(0.0, rawtext)
text['state'] = 'disabled'
text.focus_set()
# vertical scrollbar
self.yscroll = yscroll = AutoHiddenScrollbar(self, orient=VERTICAL,
takefocus=False,
command=text.yview)
text['yscrollcommand'] = yscroll.set
yscroll.grid(row=0, column=1, sticky=N+S)
self.yscroll = AutoHideScrollbar(self, orient=VERTICAL,
takefocus=False,
command=text.yview)
self.yscroll.grid(row=0, column=1, sticky=NS)
text['yscrollcommand'] = self.yscroll.set
if wrap == 'none':
# horizontal scrollbar
self.xscroll = xscroll = AutoHiddenScrollbar(self, orient=HORIZONTAL,
takefocus=False,
command=text.xview)
text['xscrollcommand'] = xscroll.set
xscroll.grid(row=1, column=0, sticky=E+W)
# horizontal scrollbar - only when wrap is set to NONE
if wrap == NONE:
self.xscroll = AutoHideScrollbar(self, orient=HORIZONTAL,
takefocus=False,
command=text.xview)
self.xscroll.grid(row=1, column=0, sticky=EW)
text['xscrollcommand'] = self.xscroll.set
else:
self.xscroll = None
class ViewFrame(Frame):
"Display TextFrame and Close button."
def __init__(self, parent, text, wrap='word'):
def __init__(self, parent, contents, wrap='word'):
"""Create a frame for viewing text with a "Close" button.
parent - parent widget for this frame
contents - text to display
wrap - type of text wrapping to use ('word', 'char' or 'none')
The Text widget is accessible via the 'text' attribute.
"""
super().__init__(parent)
self.parent = parent
self.bind('<Return>', self.ok)
self.bind('<Escape>', self.ok)
self.textframe = TextFrame(self, text, wrap=wrap)
self.textframe = ScrollableTextFrame(self, relief=SUNKEN, height=700)
text = self.text = self.textframe.text
text.insert('1.0', contents)
text.configure(wrap=wrap, highlightthickness=0, state='disabled')
color_config(text)
text.focus_set()
self.button_ok = button_ok = Button(
self, text='Close', command=self.ok, takefocus=False)
self.textframe.pack(side='top', expand=True, fill='both')
@ -87,7 +106,7 @@ class ViewFrame(Frame):
class ViewWindow(Toplevel):
"A simple text viewer dialog for IDLE."
def __init__(self, parent, title, text, modal=True, wrap='word',
def __init__(self, parent, title, contents, modal=True, wrap=WORD,
*, _htest=False, _utest=False):
"""Show the given text in a scrollable window with a 'close' button.
@ -96,7 +115,7 @@ class ViewWindow(Toplevel):
parent - parent of this dialog
title - string which is title of popup dialog
text - text to display in dialog
contents - text to display in dialog
wrap - type of text wrapping to use ('word', 'char' or 'none')
_htest - bool; change box location when running htest.
_utest - bool; don't wait_window when running unittest.
@ -109,7 +128,7 @@ class ViewWindow(Toplevel):
self.geometry(f'=750x500+{x}+{y}')
self.title(title)
self.viewframe = ViewFrame(self, text, wrap=wrap)
self.viewframe = ViewFrame(self, contents, wrap=wrap)
self.protocol("WM_DELETE_WINDOW", self.ok)
self.button_ok = button_ok = Button(self, text='Close',
command=self.ok, takefocus=False)
@ -129,18 +148,18 @@ class ViewWindow(Toplevel):
self.destroy()
def view_text(parent, title, text, modal=True, wrap='word', _utest=False):
def view_text(parent, title, contents, modal=True, wrap='word', _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
contents - text to display in this dialog
wrap - type of text wrapping to use ('word', 'char' or 'none')
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, wrap=wrap, _utest=_utest)
return ViewWindow(parent, title, contents, modal, wrap=wrap, _utest=_utest)
def view_file(parent, title, filename, encoding, modal=True, wrap='word',

1
Misc/NEWS.d/next/IDLE/2019-07-26-17-51-13.bpo-37628.kX4AUF.rst Normal file
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@ -0,0 +1 @@
Settings dialog no longer expands with font size.