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bpo-17535: IDLE editor line numbers (GH-14030) 

(cherry picked from commit 7123ea009b)

Co-authored-by: Tal Einat <taleinat@gmail.com>
This commit is contained in:
Miss Islington (bot) 2019-07-23 06:04:13 -07:00 committed by GitHub
parent bf8e82f976
commit 1da6a313dd
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GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 891 additions and 80 deletions
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17
Doc/library/idle.rst
View File

@ -290,22 +290,31 @@ Options menu (Shell and Editor)
Configure IDLE
Open a configuration dialog and change preferences for the following:
fonts, indentation, keybindings, text color themes, startup windows and
size, additional help sources, and extensions. On macOS, open the
size, additional help sources, and extensions. On macOS, open the
configuration dialog by selecting Preferences in the application
menu. For more, see
menu. For more details, see
:ref:`Setting preferences <preferences>` under Help and preferences.
Most configuration options apply to all windows or all future windows.
The option items below only apply to the active window.
Show/Hide Code Context (Editor Window only)
Open a pane at the top of the edit window which shows the block context
of the code which has scrolled above the top of the window. See
:ref:`Code Context <code-context>` in the Editing and Navigation section below.
:ref:`Code Context <code-context>` in the Editing and Navigation section
below.
Show/Hide Line Numbers (Editor Window only)
Open a column to the left of the edit window which shows the number
of each line of text. The default is off, which may be changed in the
preferences (see :ref:`Setting preferences <preferences>`).
Zoom/Restore Height
Toggles the window between normal size and maximum height. The initial size
defaults to 40 lines by 80 chars unless changed on the General tab of the
Configure IDLE dialog. The maximum height for a screen is determined by
momentarily maximizing a window the first time one is zoomed on the screen.
Changing screen settings may invalidate the saved height. This toogle has
Changing screen settings may invalidate the saved height. This toggle has
no effect when a window is maximized.
Window menu (Shell and Editor)

7
Doc/whatsnew/3.7.rst
View File

@ -1017,6 +1017,13 @@ by right-clicking the button. (Contributed by Tal Einat in :issue:`1529353`.)
The changes above have been backported to 3.6 maintenance releases.
New in 3.7.5:
Add optional line numbers for IDLE editor windows. Windows
open without line numbers unless set otherwise in the General
tab of the configuration dialog.
(Contributed by Tal Einat and Saimadhav Heblikar in :issue:`17535`.)
importlib
---------

5
Doc/whatsnew/3.8.rst
View File

@ -512,6 +512,11 @@ for certain types of invalid or corrupt gzip files.
idlelib and IDLE
----------------
Add optional line numbers for IDLE editor windows. Windows
open without line numbers unless set otherwise in the General
tab of the configuration dialog.
(Contributed by Tal Einat and Saimadhav Heblikar in :issue:`17535`.)
Output over N lines (50 by default) is squeezed down to a button.
N can be changed in the PyShell section of the General page of the
Settings dialog. Fewer, but possibly extra long, lines can be squeezed by

35
Lib/idlelib/codecontext.py
View File

@ -13,7 +13,7 @@ import re
from sys import maxsize as INFINITY
import tkinter
from tkinter.constants import TOP, X, SUNKEN
from tkinter.constants import NSEW, SUNKEN
from idlelib.config import idleConf
@ -67,6 +67,7 @@ class CodeContext:
def _reset(self):
self.context = None
self.cell00 = None
self.t1 = None
self.topvisible = 1
self.info = [(0, -1, "", False)]
@ -105,25 +106,37 @@ class CodeContext:
padx = 0
border = 0
for widget in widgets:
padx += widget.tk.getint(widget.pack_info()['padx'])
info = (widget.grid_info()
if widget is self.editwin.text
else widget.pack_info())
padx += widget.tk.getint(info['padx'])
padx += widget.tk.getint(widget.cget('padx'))
border += widget.tk.getint(widget.cget('border'))
self.context = tkinter.Text(
self.editwin.top, font=self.text['font'],
self.editwin.text_frame,
height=1,
width=1, # Don't request more than we get.
highlightthickness=0,
padx=padx, border=border, relief=SUNKEN, state='disabled')
self.update_font()
self.update_highlight_colors()
self.context.bind('<ButtonRelease-1>', self.jumptoline)
# Get the current context and initiate the recurring update event.
self.timer_event()
# Pack the context widget before and above the text_frame widget,
# thus ensuring that it will appear directly above text_frame.
self.context.pack(side=TOP, fill=X, expand=False,
before=self.editwin.text_frame)
# Grid the context widget above the text widget.
self.context.grid(row=0, column=1, sticky=NSEW)
line_number_colors = idleConf.GetHighlight(idleConf.CurrentTheme(),
'linenumber')
self.cell00 = tkinter.Frame(self.editwin.text_frame,
bg=line_number_colors['background'])
self.cell00.grid(row=0, column=0, sticky=NSEW)
menu_status = 'Hide'
else:
self.context.destroy()
self.context = None
self.cell00.destroy()
self.cell00 = None
self.text.after_cancel(self.t1)
self._reset()
menu_status = 'Show'
@ -221,8 +234,9 @@ class CodeContext:
self.update_code_context()
self.t1 = self.text.after(self.UPDATEINTERVAL, self.timer_event)
def update_font(self, font):
def update_font(self):
if self.context is not None:
font = idleConf.GetFont(self.text, 'main', 'EditorWindow')
self.context['font'] = font
def update_highlight_colors(self):
@ -231,6 +245,11 @@ class CodeContext:
self.context['background'] = colors['background']
self.context['foreground'] = colors['foreground']
if self.cell00 is not None:
line_number_colors = idleConf.GetHighlight(idleConf.CurrentTheme(),
'linenumber')
self.cell00.config(bg=line_number_colors['background'])
CodeContext.reload()

14
Lib/idlelib/config-highlight.def
View File

@ -22,6 +22,10 @@ hit-foreground= #ffffff
hit-background= #000000
error-foreground= #000000
error-background= #ff7777
context-foreground= #000000
context-background= lightgray
linenumber-foreground= gray
linenumber-background= #ffffff
#cursor (only foreground can be set, restart IDLE)
cursor-foreground= black
#shell window
@ -31,8 +35,6 @@ stderr-foreground= red
stderr-background= #ffffff
console-foreground= #770000
console-background= #ffffff
context-foreground= #000000
context-background= lightgray
[IDLE New]
normal-foreground= #000000
@ -55,6 +57,10 @@ hit-foreground= #ffffff
hit-background= #000000
error-foreground= #000000
error-background= #ff7777
context-foreground= #000000
context-background= lightgray
linenumber-foreground= gray
linenumber-background= #ffffff
#cursor (only foreground can be set, restart IDLE)
cursor-foreground= black
#shell window
@ -64,8 +70,6 @@ stderr-foreground= red
stderr-background= #ffffff
console-foreground= #770000
console-background= #ffffff
context-foreground= #000000
context-background= lightgray
[IDLE Dark]
comment-foreground = #dd0000
@ -97,3 +101,5 @@ comment-background = #002240
break-foreground = #FFFFFF
context-foreground= #ffffff
context-background= #454545
linenumber-foreground= gray
linenumber-background= #002240

5
Lib/idlelib/config-main.def
View File

@ -36,7 +36,7 @@
# Additional help sources are listed in the [HelpFiles] section below
# and should be viewable by a web browser (or the Windows Help viewer in
# the case of .chm files). These sources will be listed on the Help
# menu. The pattern, and two examples, are
# menu. The pattern, and two examples, are:
#
# <sequence_number = menu item;/path/to/help/source>
# 1 = IDLE;C:/Programs/Python36/Lib/idlelib/help.html
@ -46,7 +46,7 @@
# platform specific because of path separators, drive specs etc.
#
# The default files should not be edited except to add new sections to
# config-extensions.def for added extensions . The user files should be
# config-extensions.def for added extensions. The user files should be
# modified through the Settings dialog.
[General]
@ -65,6 +65,7 @@ font= TkFixedFont
font-size= 10
font-bold= 0
encoding= none
line-numbers-default= 0
[PyShell]
auto-squeeze-min-lines= 50

10
Lib/idlelib/config.py
View File

@ -319,6 +319,10 @@ class IdleConf:
'hit-background':'#000000',
'error-foreground':'#ffffff',
'error-background':'#000000',
'context-foreground':'#000000',
'context-background':'#ffffff',
'linenumber-foreground':'#000000',
'linenumber-background':'#ffffff',
#cursor (only foreground can be set)
'cursor-foreground':'#000000',
#shell window
@ -328,11 +332,11 @@ class IdleConf:
'stderr-background':'#ffffff',
'console-foreground':'#000000',
'console-background':'#ffffff',
'context-foreground':'#000000',
'context-background':'#ffffff',
}
for element in theme:
if not cfgParser.has_option(themeName, element):
if not (cfgParser.has_option(themeName, element) or
# Skip warning for new elements.
element.startswith(('context-', 'linenumber-'))):
# Print warning that will return a default color
warning = ('\n Warning: config.IdleConf.GetThemeDict'
' -\n problem retrieving theme element %r'

26
Lib/idlelib/configdialog.py
View File

@ -819,6 +819,7 @@ class HighPage(Frame):
'Shell Error Text': ('error', '12'),
'Shell Stdout Text': ('stdout', '13'),
'Shell Stderr Text': ('stderr', '14'),
'Line Number': ('linenumber', '16'),
}
self.builtin_name = tracers.add(
StringVar(self), self.var_changed_builtin_name)
@ -866,6 +867,11 @@ class HighPage(Frame):
('stderr', 'stderr'), ('\n\n', 'normal'))
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):
text.insert(f'{lineno}.0',
f'{lineno:{len(str(n_lines))}d} ',
'linenumber')
for element in self.theme_elements:
def tem(event, elem=element):
# event.widget.winfo_top_level().highlight_target.set(elem)
@ -1827,6 +1833,9 @@ class GenPage(Frame):
frame_format: Frame
format_width_title: Label
(*)format_width_int: Entry - format_width
frame_line_numbers_default: Frame
line_numbers_default_title: Label
(*)line_numbers_default_bool: Checkbutton - line_numbers_default
frame_context: Frame
context_title: Label
(*)context_int: Entry - context_lines
@ -1866,6 +1875,9 @@ class GenPage(Frame):
IntVar(self), ('main', 'General', 'autosave'))
self.format_width = tracers.add(
StringVar(self), ('extensions', 'FormatParagraph', 'max-width'))
self.line_numbers_default = tracers.add(
BooleanVar(self),
('main', 'EditorWindow', 'line-numbers-default'))
self.context_lines = tracers.add(
StringVar(self), ('extensions', 'CodeContext', 'maxlines'))
@ -1944,6 +1956,14 @@ class GenPage(Frame):
validatecommand=self.digits_only, validate='key',
)
frame_line_numbers_default = Frame(frame_editor, borderwidth=0)
line_numbers_default_title = Label(
frame_line_numbers_default, text='Show line numbers in new windows')
self.line_numbers_default_bool = Checkbutton(
frame_line_numbers_default,
variable=self.line_numbers_default,
width=1)
frame_context = Frame(frame_editor, borderwidth=0)
context_title = Label(frame_context, text='Max Context Lines :')
self.context_int = Entry(
@ -2021,6 +2041,10 @@ class GenPage(Frame):
frame_format.pack(side=TOP, padx=5, pady=0, fill=X)
format_width_title.pack(side=LEFT, anchor=W, padx=5, pady=5)
self.format_width_int.pack(side=TOP, padx=10, pady=5)
# frame_line_numbers_default.
frame_line_numbers_default.pack(side=TOP, padx=5, pady=0, fill=X)
line_numbers_default_title.pack(side=LEFT, anchor=W, padx=5, pady=5)
self.line_numbers_default_bool.pack(side=LEFT, padx=5, pady=5)
# frame_context.
frame_context.pack(side=TOP, padx=5, pady=0, fill=X)
context_title.pack(side=LEFT, anchor=W, padx=5, pady=5)
@ -2063,6 +2087,8 @@ class GenPage(Frame):
'main', 'General', 'autosave', default=0, type='bool'))
self.format_width.set(idleConf.GetOption(
'extensions', 'FormatParagraph', 'max-width', type='int'))
self.line_numbers_default.set(idleConf.GetOption(
'main', 'EditorWindow', 'line-numbers-default', type='bool'))
self.context_lines.set(idleConf.GetOption(
'extensions', 'CodeContext', 'maxlines', type='int'))

62
Lib/idlelib/editor.py
View File

@ -53,6 +53,7 @@ class EditorWindow(object):
from idlelib.autoexpand import AutoExpand
from idlelib.calltip import Calltip
from idlelib.codecontext import CodeContext
from idlelib.sidebar import LineNumbers
from idlelib.format import FormatParagraph, FormatRegion, Indents, Rstrip
from idlelib.parenmatch import ParenMatch
from idlelib.squeezer import Squeezer
@ -61,7 +62,8 @@ class EditorWindow(object):
filesystemencoding = sys.getfilesystemencoding() # for file names
help_url = None
allow_codecontext = True
allow_code_context = True
allow_line_numbers = True
def __init__(self, flist=None, filename=None, key=None, root=None):
# Delay import: runscript imports pyshell imports EditorWindow.
@ -198,12 +200,14 @@ class EditorWindow(object):
text.bind("<<open-turtle-demo>>", self.open_turtle_demo)
self.set_status_bar()
text_frame.pack(side=LEFT, fill=BOTH, expand=1)
text_frame.rowconfigure(1, weight=1)
text_frame.columnconfigure(1, weight=1)
vbar['command'] = self.handle_yview
vbar.pack(side=RIGHT, fill=Y)
vbar.grid(row=1, column=2, sticky=NSEW)
text['yscrollcommand'] = vbar.set
text['font'] = idleConf.GetFont(self.root, 'main', 'EditorWindow')
text_frame.pack(side=LEFT, fill=BOTH, expand=1)
text.pack(side=TOP, fill=BOTH, expand=1)
text.grid(row=1, column=1, sticky=NSEW)
text.focus_set()
# usetabs true -> literal tab characters are used by indent and
@ -250,7 +254,8 @@ class EditorWindow(object):
self.good_load = False
self.set_indentation_params(False)
self.color = None # initialized below in self.ResetColorizer
self.codecontext = None
self.code_context = None # optionally initialized later below
self.line_numbers = None # optionally initialized later below
if filename:
if os.path.exists(filename) and not os.path.isdir(filename):
if io.loadfile(filename):
@ -316,10 +321,20 @@ class EditorWindow(object):
text.bind("<<refresh-calltip>>", ctip.refresh_calltip_event)
text.bind("<<force-open-calltip>>", ctip.force_open_calltip_event)
text.bind("<<zoom-height>>", self.ZoomHeight(self).zoom_height_event)
if self.allow_codecontext:
self.codecontext = self.CodeContext(self)
if self.allow_code_context:
self.code_context = self.CodeContext(self)
text.bind("<<toggle-code-context>>",
self.codecontext.toggle_code_context_event)
self.code_context.toggle_code_context_event)
else:
self.update_menu_state('options', '*Code Context', 'disabled')
if self.allow_line_numbers:
self.line_numbers = self.LineNumbers(self)
if idleConf.GetOption('main', 'EditorWindow',
'line-numbers-default', type='bool'):
self.toggle_line_numbers_event()
text.bind("<<toggle-line-numbers>>", self.toggle_line_numbers_event)
else:
self.update_menu_state('options', '*Line Numbers', 'disabled')
def _filename_to_unicode(self, filename):
"""Return filename as BMP unicode so displayable in Tk."""
@ -779,8 +794,11 @@ class EditorWindow(object):
self._addcolorizer()
EditorWindow.color_config(self.text)
if self.codecontext is not None:
self.codecontext.update_highlight_colors()
if self.code_context is not None:
self.code_context.update_highlight_colors()
if self.line_numbers is not None:
self.line_numbers.update_colors()
IDENTCHARS = string.ascii_letters + string.digits + "_"
@ -799,11 +817,16 @@ class EditorWindow(object):
"Update the text widgets' font if it is changed"
# Called from configdialog.py
new_font = idleConf.GetFont(self.root, 'main', 'EditorWindow')
# Update the code context widget first, since its height affects
# the height of the text widget. This avoids double re-rendering.
if self.codecontext is not None:
self.codecontext.update_font(new_font)
if self.code_context is not None:
self.code_context.update_font()
# Next, update the line numbers widget, since its width affects
# the width of the text widget.
if self.line_numbers is not None:
self.line_numbers.update_font()
# Finally, update the main text widget.
new_font = idleConf.GetFont(self.root, 'main', 'EditorWindow')
self.text['font'] = new_font
def RemoveKeybindings(self):
@ -1467,6 +1490,19 @@ class EditorWindow(object):
indentsmall = indentlarge = 0
return indentlarge - indentsmall
def toggle_line_numbers_event(self, event=None):
if self.line_numbers is None:
return
if self.line_numbers.is_shown:
self.line_numbers.hide_sidebar()
menu_label = "Show"
else:
self.line_numbers.show_sidebar()
menu_label = "Hide"
self.update_menu_label(menu='options', index='*Line Numbers',
label=f'{menu_label} Line Numbers')
# "line.col" -> line, as an int
def index2line(index):
return int(float(index))

11
Lib/idlelib/help.html
View File

@ -271,10 +271,15 @@ fonts, indentation, keybindings, text color themes, startup windows and
size, additional help sources, and extensions. On macOS, open the
configuration dialog by selecting Preferences in the application
menu. For more, see
<a class="reference internal" href="#preferences"><span class="std std-ref">Setting preferences</span></a> under Help and preferences.</dd>
<a class="reference internal" href="#preferences"><span class="std std-ref">Setting preferences</span></a> under Help and preferences.
Most configuration options apply to all windows or all future windows.
The option items below only apply to the active window.</dd>
<dt>Show/Hide Code Context (Editor Window only)</dt><dd>Open a pane at the top of the edit window which shows the block context
of the code which has scrolled above the top of the window. See
<a class="reference internal" href="#code-context"><span class="std std-ref">Code Context</span></a> in the Editing and Navigation section below.</dd>
<dt>Line Numbers (Editor Window only)</dt><dd>Open a column to the left of the edit window which shows the linenumber
of each line of text. The default is off unless configured on
(see <a class="reference internal" href="#preferences"><span class="std std-ref">Setting preferences</span></a>).</dd>
<dt>Zoom/Restore Height</dt><dd>Toggles the window between normal size and maximum height. The initial size
defaults to 40 lines by 80 chars unless changed on the General tab of the
Configure IDLE dialog. The maximum height for a screen is determined by
@ -607,7 +612,7 @@ IDLE should be started in a command line window. The secondary subprocess
will then be attached to that window for input and output.</p>
<p>The IDLE code running in the execution process adds frames to the call stack
that would not be there otherwise. IDLE wraps <code class="docutils literal notranslate"><span class="pre">sys.getrecursionlimit</span></code> and
<code class="docutils literal notranslate"><span class="pre">sys.setrecursionlimit</span></code> to reduce their visibility.</p>
<code class="docutils literal notranslate"><span class="pre">sys.setrecursionlimit</span></code> to reduce the effect of the additional stack frames.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">sys</span></code> is reset by user code, such as with <code class="docutils literal notranslate"><span class="pre">importlib.reload(sys)</span></code>,
IDLE’s changes are lost and input from the keyboard and output to the screen
will not work correctly.</p>
@ -895,7 +900,7 @@ also used for testing.</p>
<br />
<br />
Last updated on Jul 04, 2019.
Last updated on Jul 23, 2019.
<a href="https://docs.python.org/3/bugs.html">Found a bug</a>?
<br />

14
Lib/idlelib/idle_test/htest.py
View File

@ -67,6 +67,7 @@ outwin.OutputWindow (indirectly being tested with grep test)
import idlelib.pyshell # Set Windows DPI awareness before Tk().
from importlib import import_module
import textwrap
import tkinter as tk
from tkinter.ttk import Scrollbar
tk.NoDefaultRoot()
@ -205,6 +206,19 @@ _io_binding_spec = {
"Check that changes were saved by opening the file elsewhere."
}
_linenumbers_drag_scrolling_spec = {
'file': 'sidebar',
'kwds': {},
'msg': textwrap.dedent("""\
Click on the line numbers and drag down below the edge of the
window, moving the mouse a bit and then leaving it there for a while.
The text and line numbers should gradually scroll down, with the
selection updated continuously.
Do the same as above, dragging to above the window. The text and line
numbers should gradually scroll up, with the selection updated
continuously."""),
}
_multi_call_spec = {
'file': 'multicall',
'kwds': {},

77
Lib/idlelib/idle_test/test_codecontext.py
View File

@ -4,7 +4,7 @@ from idlelib import codecontext
import unittest
import unittest.mock
from test.support import requires
from tkinter import Tk, Frame, Text, TclError
from tkinter import NSEW, Tk, Frame, Text, TclError
from unittest import mock
import re
@ -62,7 +62,7 @@ class CodeContextTest(unittest.TestCase):
text.insert('1.0', code_sample)
# Need to pack for creation of code context text widget.
frame.pack(side='left', fill='both', expand=1)
text.pack(side='top', fill='both', expand=1)
text.grid(row=1, column=1, sticky=NSEW)
cls.editor = DummyEditwin(root, frame, text)
codecontext.idleConf.userCfg = testcfg
@ -77,6 +77,7 @@ class CodeContextTest(unittest.TestCase):
def setUp(self):
self.text.yview(0)
self.text['font'] = 'TkFixedFont'
self.cc = codecontext.CodeContext(self.editor)
self.highlight_cfg = {"background": '#abcdef',
@ -86,10 +87,18 @@ class CodeContextTest(unittest.TestCase):
if element == 'context':
return self.highlight_cfg
return orig_idleConf_GetHighlight(theme, element)
patcher = unittest.mock.patch.object(
GetHighlight_patcher = unittest.mock.patch.object(
codecontext.idleConf, 'GetHighlight', mock_idleconf_GetHighlight)
patcher.start()
self.addCleanup(patcher.stop)
GetHighlight_patcher.start()
self.addCleanup(GetHighlight_patcher.stop)
self.font_override = 'TkFixedFont'
def mock_idleconf_GetFont(root, configType, section):
return self.font_override
GetFont_patcher = unittest.mock.patch.object(
codecontext.idleConf, 'GetFont', mock_idleconf_GetFont)
GetFont_patcher.start()
self.addCleanup(GetFont_patcher.stop)
def tearDown(self):
if self.cc.context:
@ -339,69 +348,59 @@ class CodeContextTest(unittest.TestCase):
def test_font(self):
eq = self.assertEqual
cc = self.cc
save_font = cc.text['font']
orig_font = cc.text['font']
test_font = 'TkTextFont'
self.assertNotEqual(orig_font, test_font)
# Ensure code context is not active.
if cc.context is not None:
cc.toggle_code_context_event()
self.font_override = test_font
# Nothing breaks or changes with inactive code context.
cc.update_font(test_font)
cc.update_font()
# Activate code context, but no change to font.
# Activate code context, previous font change is immediately effective.
cc.toggle_code_context_event()
eq(cc.context['font'], save_font)
# Call font update with the existing font.
cc.update_font(save_font)
eq(cc.context['font'], save_font)
cc.toggle_code_context_event()
# Change text widget font and activate code context.
cc.text['font'] = test_font
cc.toggle_code_context_event(test_font)
eq(cc.context['font'], test_font)
# Just call the font update.
cc.update_font(save_font)
eq(cc.context['font'], save_font)
cc.text['font'] = save_font
# Call the font update, change is picked up.
self.font_override = orig_font
cc.update_font()
eq(cc.context['font'], orig_font)
def test_highlight_colors(self):
eq = self.assertEqual
cc = self.cc
save_colors = dict(self.highlight_cfg)
orig_colors = dict(self.highlight_cfg)
test_colors = {'background': '#222222', 'foreground': '#ffff00'}
def assert_colors_are_equal(colors):
eq(cc.context['background'], colors['background'])
eq(cc.context['foreground'], colors['foreground'])
# Ensure code context is not active.
if cc.context:
cc.toggle_code_context_event()
self.highlight_cfg = test_colors
# Nothing breaks with inactive code context.
cc.update_highlight_colors()
# Activate code context, but no change to colors.
# Activate code context, previous colors change is immediately effective.
cc.toggle_code_context_event()
eq(cc.context['background'], save_colors['background'])
eq(cc.context['foreground'], save_colors['foreground'])
assert_colors_are_equal(test_colors)
# Call colors update, but no change to font.
# Call colors update with no change to the configured colors.
cc.update_highlight_colors()
eq(cc.context['background'], save_colors['background'])
eq(cc.context['foreground'], save_colors['foreground'])
cc.toggle_code_context_event()
assert_colors_are_equal(test_colors)
# Change colors and activate code context.
self.highlight_cfg = test_colors
cc.toggle_code_context_event()
eq(cc.context['background'], test_colors['background'])
eq(cc.context['foreground'], test_colors['foreground'])
# Change colors and call highlight colors update.
self.highlight_cfg = save_colors
# Call the colors update with code context active, change is picked up.
self.highlight_cfg = orig_colors
cc.update_highlight_colors()
eq(cc.context['background'], save_colors['background'])
eq(cc.context['foreground'], save_colors['foreground'])
assert_colors_are_equal(orig_colors)
class HelperFunctionText(unittest.TestCase):

351
Lib/idlelib/idle_test/test_sidebar.py Normal file
View File

@ -0,0 +1,351 @@
"""Test sidebar, coverage 93%"""
from itertools import chain
import unittest
import unittest.mock
from test.support import requires
import tkinter as tk
from idlelib.delegator import Delegator
from idlelib.percolator import Percolator
import idlelib.sidebar
class Dummy_editwin:
def __init__(self, text):
self.text = text
self.text_frame = self.text.master
self.per = Percolator(text)
self.undo = Delegator()
self.per.insertfilter(self.undo)
def setvar(self, name, value):
pass
def getlineno(self, index):
return int(float(self.text.index(index)))
class LineNumbersTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
requires('gui')
cls.root = tk.Tk()
cls.text_frame = tk.Frame(cls.root)
cls.text_frame.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
cls.text_frame.rowconfigure(1, weight=1)
cls.text_frame.columnconfigure(1, weight=1)
cls.text = tk.Text(cls.text_frame, width=80, height=24, wrap=tk.NONE)
cls.text.grid(row=1, column=1, sticky=tk.NSEW)
cls.editwin = Dummy_editwin(cls.text)
cls.editwin.vbar = tk.Scrollbar(cls.text_frame)
@classmethod
def tearDownClass(cls):
cls.editwin.per.close()
cls.root.update()
cls.root.destroy()
del cls.text, cls.text_frame, cls.editwin, cls.root
def setUp(self):
self.linenumber = idlelib.sidebar.LineNumbers(self.editwin)
self.highlight_cfg = {"background": '#abcdef',
"foreground": '#123456'}
orig_idleConf_GetHighlight = idlelib.sidebar.idleConf.GetHighlight
def mock_idleconf_GetHighlight(theme, element):
if element == 'linenumber':
return self.highlight_cfg
return orig_idleConf_GetHighlight(theme, element)
GetHighlight_patcher = unittest.mock.patch.object(
idlelib.sidebar.idleConf, 'GetHighlight', mock_idleconf_GetHighlight)
GetHighlight_patcher.start()
self.addCleanup(GetHighlight_patcher.stop)
self.font_override = 'TkFixedFont'
def mock_idleconf_GetFont(root, configType, section):
return self.font_override
GetFont_patcher = unittest.mock.patch.object(
idlelib.sidebar.idleConf, 'GetFont', mock_idleconf_GetFont)
GetFont_patcher.start()
self.addCleanup(GetFont_patcher.stop)
def tearDown(self):
self.text.delete('1.0', 'end')
def get_selection(self):
return tuple(map(str, self.text.tag_ranges('sel')))
def get_line_screen_position(self, line):
bbox = self.linenumber.sidebar_text.bbox(f'{line}.end -1c')
x = bbox[0] + 2
y = bbox[1] + 2
return x, y
def assert_state_disabled(self):
state = self.linenumber.sidebar_text.config()['state']
self.assertEqual(state[-1], tk.DISABLED)
def get_sidebar_text_contents(self):
return self.linenumber.sidebar_text.get('1.0', tk.END)
def assert_sidebar_n_lines(self, n_lines):
expected = '\n'.join(chain(map(str, range(1, n_lines + 1)), ['']))
self.assertEqual(self.get_sidebar_text_contents(), expected)
def assert_text_equals(self, expected):
return self.assertEqual(self.text.get('1.0', 'end'), expected)
def test_init_empty(self):
self.assert_sidebar_n_lines(1)
def test_init_not_empty(self):
self.text.insert('insert', 'foo bar\n'*3)
self.assert_text_equals('foo bar\n'*3 + '\n')
self.assert_sidebar_n_lines(4)
def test_toggle_linenumbering(self):
self.assertEqual(self.linenumber.is_shown, False)
self.linenumber.show_sidebar()
self.assertEqual(self.linenumber.is_shown, True)
self.linenumber.hide_sidebar()
self.assertEqual(self.linenumber.is_shown, False)
self.linenumber.hide_sidebar()
self.assertEqual(self.linenumber.is_shown, False)
self.linenumber.show_sidebar()
self.assertEqual(self.linenumber.is_shown, True)
self.linenumber.show_sidebar()
self.assertEqual(self.linenumber.is_shown, True)
def test_insert(self):
self.text.insert('insert', 'foobar')
self.assert_text_equals('foobar\n')
self.assert_sidebar_n_lines(1)
self.assert_state_disabled()
self.text.insert('insert', '\nfoo')
self.assert_text_equals('foobar\nfoo\n')
self.assert_sidebar_n_lines(2)
self.assert_state_disabled()
self.text.insert('insert', 'hello\n'*2)
self.assert_text_equals('foobar\nfoohello\nhello\n\n')
self.assert_sidebar_n_lines(4)
self.assert_state_disabled()
self.text.insert('insert', '\nworld')
self.assert_text_equals('foobar\nfoohello\nhello\n\nworld\n')
self.assert_sidebar_n_lines(5)
self.assert_state_disabled()
def test_delete(self):
self.text.insert('insert', 'foobar')
self.assert_text_equals('foobar\n')
self.text.delete('1.1', '1.3')
self.assert_text_equals('fbar\n')
self.assert_sidebar_n_lines(1)
self.assert_state_disabled()
self.text.insert('insert', 'foo\n'*2)
self.assert_text_equals('fbarfoo\nfoo\n\n')
self.assert_sidebar_n_lines(3)
self.assert_state_disabled()
# Note: deleting up to "2.end" doesn't delete the final newline.
self.text.delete('2.0', '2.end')
self.assert_text_equals('fbarfoo\n\n\n')
self.assert_sidebar_n_lines(3)
self.assert_state_disabled()
self.text.delete('1.3', 'end')
self.assert_text_equals('fba\n')
self.assert_sidebar_n_lines(1)
self.assert_state_disabled()
# Note: Text widgets always keep a single '\n' character at the end.
self.text.delete('1.0', 'end')
self.assert_text_equals('\n')
self.assert_sidebar_n_lines(1)
self.assert_state_disabled()
def test_sidebar_text_width(self):
"""
Test that linenumber text widget is always at the minimum
width
"""
def get_width():
return self.linenumber.sidebar_text.config()['width'][-1]
self.assert_sidebar_n_lines(1)
self.assertEqual(get_width(), 1)
self.text.insert('insert', 'foo')
self.assert_sidebar_n_lines(1)
self.assertEqual(get_width(), 1)
self.text.insert('insert', 'foo\n'*8)
self.assert_sidebar_n_lines(9)
self.assertEqual(get_width(), 1)
self.text.insert('insert', 'foo\n')
self.assert_sidebar_n_lines(10)
self.assertEqual(get_width(), 2)
self.text.insert('insert', 'foo\n')
self.assert_sidebar_n_lines(11)
self.assertEqual(get_width(), 2)
self.text.delete('insert -1l linestart', 'insert linestart')
self.assert_sidebar_n_lines(10)
self.assertEqual(get_width(), 2)
self.text.delete('insert -1l linestart', 'insert linestart')
self.assert_sidebar_n_lines(9)
self.assertEqual(get_width(), 1)
self.text.insert('insert', 'foo\n'*90)
self.assert_sidebar_n_lines(99)
self.assertEqual(get_width(), 2)
self.text.insert('insert', 'foo\n')
self.assert_sidebar_n_lines(100)
self.assertEqual(get_width(), 3)
self.text.insert('insert', 'foo\n')
self.assert_sidebar_n_lines(101)
self.assertEqual(get_width(), 3)
self.text.delete('insert -1l linestart', 'insert linestart')
self.assert_sidebar_n_lines(100)
self.assertEqual(get_width(), 3)
self.text.delete('insert -1l linestart', 'insert linestart')
self.assert_sidebar_n_lines(99)
self.assertEqual(get_width(), 2)
self.text.delete('50.0 -1c', 'end -1c')
self.assert_sidebar_n_lines(49)
self.assertEqual(get_width(), 2)
self.text.delete('5.0 -1c', 'end -1c')
self.assert_sidebar_n_lines(4)
self.assertEqual(get_width(), 1)
# Note: Text widgets always keep a single '\n' character at the end.
self.text.delete('1.0', 'end -1c')
self.assert_sidebar_n_lines(1)
self.assertEqual(get_width(), 1)
def test_click_selection(self):
self.linenumber.show_sidebar()
self.text.insert('1.0', 'one\ntwo\nthree\nfour\n')
self.root.update()
# Click on the second line.
x, y = self.get_line_screen_position(2)
self.linenumber.sidebar_text.event_generate('<Button-1>', x=x, y=y)
self.linenumber.sidebar_text.update()
self.root.update()
self.assertEqual(self.get_selection(), ('2.0', '3.0'))
def test_drag_selection(self):
self.linenumber.show_sidebar()
self.text.insert('1.0', 'one\ntwo\nthree\nfour\n')
self.root.update()
# Drag from the first line to the third line.
start_x, start_y = self.get_line_screen_position(1)
end_x, end_y = self.get_line_screen_position(3)
self.linenumber.sidebar_text.event_generate('<Button-1>',
x=start_x, y=start_y)
self.linenumber.sidebar_text.event_generate('<B1-Motion>',
x=start_x, y=start_y)
self.linenumber.sidebar_text.event_generate('<B1-Motion>',
x=end_x, y=end_y)
self.linenumber.sidebar_text.event_generate('<ButtonRelease-1>',
x=end_x, y=end_y)
self.root.update()
self.assertEqual(self.get_selection(), ('1.0', '4.0'))
def test_scroll(self):
self.linenumber.show_sidebar()
self.text.insert('1.0', 'line\n' * 100)
self.root.update()
# Scroll down 10 lines.
self.text.yview_scroll(10, 'unit')
self.root.update()
self.assertEqual(self.text.index('@0,0'), '11.0')
self.assertEqual(self.linenumber.sidebar_text.index('@0,0'), '11.0')
# Generate a mouse-wheel event and make sure it scrolled up or down.
# The meaning of the "delta" is OS-dependant, so this just checks for
# any change.
self.linenumber.sidebar_text.event_generate('<MouseWheel>',
x=0, y=0,
delta=10)
self.root.update()
self.assertNotEqual(self.text.index('@0,0'), '11.0')
self.assertNotEqual(self.linenumber.sidebar_text.index('@0,0'), '11.0')
def test_font(self):
ln = self.linenumber
orig_font = ln.sidebar_text['font']
test_font = 'TkTextFont'
self.assertNotEqual(orig_font, test_font)
# Ensure line numbers aren't shown.
ln.hide_sidebar()
self.font_override = test_font
# Nothing breaks when line numbers aren't shown.
ln.update_font()
# Activate line numbers, previous font change is immediately effective.
ln.show_sidebar()
self.assertEqual(ln.sidebar_text['font'], test_font)
# Call the font update with line numbers shown, change is picked up.
self.font_override = orig_font
ln.update_font()
self.assertEqual(ln.sidebar_text['font'], orig_font)
def test_highlight_colors(self):
ln = self.linenumber
orig_colors = dict(self.highlight_cfg)
test_colors = {'background': '#222222', 'foreground': '#ffff00'}
def assert_colors_are_equal(colors):
self.assertEqual(ln.sidebar_text['background'], colors['background'])
self.assertEqual(ln.sidebar_text['foreground'], colors['foreground'])
# Ensure line numbers aren't shown.
ln.hide_sidebar()
self.highlight_cfg = test_colors
# Nothing breaks with inactive code context.
ln.update_colors()
# Show line numbers, previous colors change is immediately effective.
ln.show_sidebar()
assert_colors_are_equal(test_colors)
# Call colors update with no change to the configured colors.
ln.update_colors()
assert_colors_are_equal(test_colors)
# Call the colors update with line numbers shown, change is picked up.
self.highlight_cfg = orig_colors
ln.update_colors()
assert_colors_are_equal(orig_colors)
if __name__ == '__main__':
unittest.main(verbosity=2)

3
Lib/idlelib/mainmenu.py
View File

@ -100,7 +100,8 @@ menudefs = [
('Configure _IDLE', '<<open-config-dialog>>'),
None,
('Show _Code Context', '<<toggle-code-context>>'),
('Zoom Height', '<<zoom-height>>'),
('Show _Line Numbers', '<<toggle-line-numbers>>'),
('_Zoom Height', '<<zoom-height>>'),
]),
('window', [

4
Lib/idlelib/outwin.py
View File

@ -74,13 +74,11 @@ class OutputWindow(EditorWindow):
("Go to file/line", "<<goto-file-line>>", None),
]
allow_codecontext = False
allow_code_context = False
def __init__(self, *args):
EditorWindow.__init__(self, *args)
self.text.bind("<<goto-file-line>>", self.goto_file_line)
self.text.unbind("<<toggle-code-context>>")
self.update_menu_state('options', '*Code Context', 'disabled')
# Customize EditorWindow
def ispythonsource(self, filename):

2
Lib/idlelib/pyshell.py
View File

@ -861,6 +861,8 @@ class PyShell(OutputWindow):
("Squeeze", "<<squeeze-current-text>>"),
]
allow_line_numbers = False
# New classes
from idlelib.history import History

324
Lib/idlelib/sidebar.py Normal file
View File

@ -0,0 +1,324 @@
"""Line numbering implementation for IDLE as an extension.
Includes BaseSideBar which can be extended for other sidebar based extensions
"""
import functools
import itertools
import tkinter as tk
from idlelib.config import idleConf
from idlelib.delegator import Delegator
def get_end_linenumber(text):
"""Utility to get the last line's number in a Tk text widget."""
return int(float(text.index('end-1c')))
def get_widget_padding(widget):
"""Get the total padding of a Tk widget, including its border."""
# TODO: use also in codecontext.py
manager = widget.winfo_manager()
if manager == 'pack':
info = widget.pack_info()
elif manager == 'grid':
info = widget.grid_info()
else:
raise ValueError(f"Unsupported geometry manager: {manager}")
# All values are passed through getint(), since some
# values may be pixel objects, which can't simply be added to ints.
padx = sum(map(widget.tk.getint, [
info['padx'],
widget.cget('padx'),
widget.cget('border'),
]))
pady = sum(map(widget.tk.getint, [
info['pady'],
widget.cget('pady'),
widget.cget('border'),
]))
return padx, pady
class BaseSideBar:
"""
The base class for extensions which require a sidebar.
"""
def __init__(self, editwin):
self.editwin = editwin
self.parent = editwin.text_frame
self.text = editwin.text
_padx, pady = get_widget_padding(self.text)
self.sidebar_text = tk.Text(self.parent, width=1, wrap=tk.NONE,
padx=0, pady=pady,
borderwidth=0, highlightthickness=0)
self.sidebar_text.config(state=tk.DISABLED)
self.text['yscrollcommand'] = self.redirect_yscroll_event
self.update_font()
self.update_colors()
self.is_shown = False
def update_font(self):
"""Update the sidebar text font, usually after config changes."""
font = idleConf.GetFont(self.text, 'main', 'EditorWindow')
self._update_font(font)
def _update_font(self, font):
self.sidebar_text['font'] = font
def update_colors(self):
"""Update the sidebar text colors, usually after config changes."""
colors = idleConf.GetHighlight(idleConf.CurrentTheme(), 'normal')
self._update_colors(foreground=colors['foreground'],
background=colors['background'])
def _update_colors(self, foreground, background):
self.sidebar_text.config(
fg=foreground, bg=background,
selectforeground=foreground, selectbackground=background,
inactiveselectbackground=background,
)
def show_sidebar(self):
if not self.is_shown:
self.sidebar_text.grid(row=1, column=0, sticky=tk.NSEW)
self.is_shown = True
def hide_sidebar(self):
if self.is_shown:
self.sidebar_text.grid_forget()
self.is_shown = False
def redirect_yscroll_event(self, *args, **kwargs):
"""Redirect vertical scrolling to the main editor text widget.
The scroll bar is also updated.
"""
self.editwin.vbar.set(*args)
self.sidebar_text.yview_moveto(args[0])
return 'break'
def redirect_focusin_event(self, event):
"""Redirect focus-in events to the main editor text widget."""
self.text.focus_set()
return 'break'
def redirect_mousebutton_event(self, event, event_name):
"""Redirect mouse button events to the main editor text widget."""
self.text.focus_set()
self.text.event_generate(event_name, x=0, y=event.y)
return 'break'
def redirect_mousewheel_event(self, event):
"""Redirect mouse wheel events to the editwin text widget."""
self.text.event_generate('<MouseWheel>',
x=0, y=event.y, delta=event.delta)
return 'break'
class EndLineDelegator(Delegator):
"""Generate callbacks with the current end line number after
insert or delete operations"""
def __init__(self, changed_callback):
"""
changed_callback - Callable, will be called after insert
or delete operations with the current
end line number.
"""
Delegator.__init__(self)
self.changed_callback = changed_callback
def insert(self, index, chars, tags=None):
self.delegate.insert(index, chars, tags)
self.changed_callback(get_end_linenumber(self.delegate))
def delete(self, index1, index2=None):
self.delegate.delete(index1, index2)
self.changed_callback(get_end_linenumber(self.delegate))
class LineNumbers(BaseSideBar):
"""Line numbers support for editor windows."""
def __init__(self, editwin):
BaseSideBar.__init__(self, editwin)
self.prev_end = 1
self._sidebar_width_type = type(self.sidebar_text['width'])
self.sidebar_text.config(state=tk.NORMAL)
self.sidebar_text.insert('insert', '1', 'linenumber')
self.sidebar_text.config(state=tk.DISABLED)
self.sidebar_text.config(takefocus=False, exportselection=False)
self.sidebar_text.tag_config('linenumber', justify=tk.RIGHT)
self.bind_events()
end = get_end_linenumber(self.text)
self.update_sidebar_text(end)
end_line_delegator = EndLineDelegator(self.update_sidebar_text)
# Insert the delegator after the undo delegator, so that line numbers
# are properly updated after undo and redo actions.
end_line_delegator.setdelegate(self.editwin.undo.delegate)
self.editwin.undo.setdelegate(end_line_delegator)
# Reset the delegator caches of the delegators "above" the
# end line delegator we just inserted.
delegator = self.editwin.per.top
while delegator is not end_line_delegator:
delegator.resetcache()
delegator = delegator.delegate
self.is_shown = False
def bind_events(self):
# Ensure focus is always redirected to the main editor text widget.
self.sidebar_text.bind('<FocusIn>', self.redirect_focusin_event)
# Redirect mouse scrolling to the main editor text widget.
#
# Note that without this, scrolling with the mouse only scrolls
# the line numbers.
self.sidebar_text.bind('<MouseWheel>', self.redirect_mousewheel_event)
# Redirect mouse button events to the main editor text widget,
# except for the left mouse button (1).
#
# Note: X-11 sends Button-4 and Button-5 events for the scroll wheel.
def bind_mouse_event(event_name, target_event_name):
handler = functools.partial(self.redirect_mousebutton_event,
event_name=target_event_name)
self.sidebar_text.bind(event_name, handler)
for button in [2, 3, 4, 5]:
for event_name in (f'<Button-{button}>',
f'<ButtonRelease-{button}>',
f'<B{button}-Motion>',
):
bind_mouse_event(event_name, target_event_name=event_name)
# Convert double- and triple-click events to normal click events,
# since event_generate() doesn't allow generating such events.
for event_name in (f'<Double-Button-{button}>',
f'<Triple-Button-{button}>',
):
bind_mouse_event(event_name,
target_event_name=f'<Button-{button}>')
start_line = None
def b1_mousedown_handler(event):
# select the entire line
lineno = self.editwin.getlineno(f"@0,{event.y}")
self.text.tag_remove("sel", "1.0", "end")
self.text.tag_add("sel", f"{lineno}.0", f"{lineno+1}.0")
self.text.mark_set("insert", f"{lineno+1}.0")
# remember this line in case this is the beginning of dragging
nonlocal start_line
start_line = lineno
self.sidebar_text.bind('<Button-1>', b1_mousedown_handler)
# These are set by b1_motion_handler() and read by selection_handler();
# see below. last_y is passed this way since the mouse Y-coordinate
# is not available on selection event objects. last_yview is passed
# this way to recognize scrolling while the mouse isn't moving.
last_y = last_yview = None
def drag_update_selection_and_insert_mark(y_coord):
"""Helper function for drag and selection event handlers."""
lineno = self.editwin.getlineno(f"@0,{y_coord}")
a, b = sorted([start_line, lineno])
self.text.tag_remove("sel", "1.0", "end")
self.text.tag_add("sel", f"{a}.0", f"{b+1}.0")
self.text.mark_set("insert",
f"{lineno if lineno == a else lineno + 1}.0")
# Special handling of dragging with mouse button 1. In "normal" text
# widgets this selects text, but the line numbers text widget has
# selection disabled. Still, dragging triggers some selection-related
# functionality under the hood. Specifically, dragging to above or
# below the text widget triggers scrolling, in a way that bypasses the
# other scrolling synchronization mechanisms.i
def b1_drag_handler(event, *args):
nonlocal last_y
nonlocal last_yview
last_y = event.y
last_yview = self.sidebar_text.yview()
if not 0 <= last_y <= self.sidebar_text.winfo_height():
self.text.yview_moveto(last_yview[0])
drag_update_selection_and_insert_mark(event.y)
self.sidebar_text.bind('<B1-Motion>', b1_drag_handler)
# With mouse-drag scrolling fixed by the above, there is still an edge-
# case we need to handle: When drag-scrolling, scrolling can continue
# while the mouse isn't moving, leading to the above fix not scrolling
# properly.
def selection_handler(event):
yview = self.sidebar_text.yview()
if yview != last_yview:
self.text.yview_moveto(yview[0])
drag_update_selection_and_insert_mark(last_y)
self.sidebar_text.bind('<<Selection>>', selection_handler)
def update_colors(self):
"""Update the sidebar text colors, usually after config changes."""
colors = idleConf.GetHighlight(idleConf.CurrentTheme(), 'linenumber')
self._update_colors(foreground=colors['foreground'],
background=colors['background'])
def update_sidebar_text(self, end):
"""
Perform the following action:
Each line sidebar_text contains the linenumber for that line
Synchronize with editwin.text so that both sidebar_text and
editwin.text contain the same number of lines"""
if end == self.prev_end:
return
width_difference = len(str(end)) - len(str(self.prev_end))
if width_difference:
cur_width = int(float(self.sidebar_text['width']))
new_width = cur_width + width_difference
self.sidebar_text['width'] = self._sidebar_width_type(new_width)
self.sidebar_text.config(state=tk.NORMAL)
if end > self.prev_end:
new_text = '\n'.join(itertools.chain(
[''],
map(str, range(self.prev_end + 1, end + 1)),
))
self.sidebar_text.insert(f'end -1c', new_text, 'linenumber')
else:
self.sidebar_text.delete(f'{end+1}.0 -1c', 'end -1c')
self.sidebar_text.config(state=tk.DISABLED)
self.prev_end = end
def _linenumbers_drag_scrolling(parent): # htest #
from idlelib.idle_test.test_sidebar import Dummy_editwin
toplevel = tk.Toplevel(parent)
text_frame = tk.Frame(toplevel)
text_frame.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)
text_frame.rowconfigure(1, weight=1)
text_frame.columnconfigure(1, weight=1)
font = idleConf.GetFont(toplevel, 'main', 'EditorWindow')
text = tk.Text(text_frame, width=80, height=24, wrap=tk.NONE, font=font)
text.grid(row=1, column=1, sticky=tk.NSEW)
editwin = Dummy_editwin(text)
editwin.vbar = tk.Scrollbar(text_frame)
linenumbers = LineNumbers(editwin)
linenumbers.show_sidebar()
text.insert('1.0', '\n'.join('a'*i for i in range(1, 101)))
if __name__ == '__main__':
from unittest import main
main('idlelib.idle_test.test_sidebar', verbosity=2, exit=False)
from idlelib.idle_test.htest import run
run(_linenumbers_drag_scrolling)

4
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Add optional line numbers for IDLE editor windows. Windows
open without line numbers unless set otherwise in the General
tab of the configuration dialog.