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bpo-30913: IDLE: Document tk vars, attributes, and methods for ConfigDialog (#2697) 

The will help writing dialog improvements and splitting the class into multiple classes.
Original patch by Cheryl Sabella.
This commit is contained in:
csabella 2017-07-13 23:32:01 -04:00 committed by terryjreedy
parent 9b622fb903
commit 36329a4dd8
2 changed files with 440 additions and 45 deletions
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482
Lib/idlelib/configdialog.py
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@ -38,10 +38,17 @@ class ConfigDialog(Toplevel):
def __init__(self, parent, title='', _htest=False, _utest=False):
"""Show the tabbed dialog for user configuration.
parent - parent of this dialog
title - string which is the title of this popup dialog
_htest - bool, change box location when running htest
_utest - bool, don't wait_window when running unittest
Args:
parent - parent of this dialog
title - string which is the title of this popup dialog
_htest - bool, change box location when running htest
_utest - bool, don't wait_window when running unittest
Note: Focus set on font page fontlist.
Methods:
create_widgets
cancel: Bound to DELETE_WINDOW protocol.
"""
Toplevel.__init__(self, parent)
self.parent = parent
@ -58,22 +65,6 @@ class ConfigDialog(Toplevel):
# Each theme element key is its display name.
# The first value of the tuple is the sample area tag name.
# The second value is the display name list sort index.
self.theme_elements={
'Normal Text': ('normal', '00'),
'Python Keywords': ('keyword', '01'),
'Python Definitions': ('definition', '02'),
'Python Builtins': ('builtin', '03'),
'Python Comments': ('comment', '04'),
'Python Strings': ('string', '05'),
'Selected Text': ('hilite', '06'),
'Found Text': ('hit', '07'),
'Cursor': ('cursor', '08'),
'Editor Breakpoint': ('break', '09'),
'Shell Normal Text': ('console', '10'),
'Shell Error Text': ('error', '11'),
'Shell Stdout Text': ('stdout', '12'),
'Shell Stderr Text': ('stderr', '13'),
}
self.create_widgets()
self.resizable(height=FALSE, width=FALSE)
self.transient(parent)
@ -93,7 +84,23 @@ class ConfigDialog(Toplevel):
self.wait_window()
def create_widgets(self):
"Create and place widgets for tabbed dialog."
"""Create and place widgets for tabbed dialog.
Widgets Bound to self:
tab_pages: TabbedPageSet
Methods:
create_page_font_tab
create_page_highlight
create_page_keys
create_page_general
create_page_extensions
create_action_buttons
load_configs: Load pages except for extensions.
attach_var_callbacks
remove_var_callbacks
activate_config_changes: Tell editors to reload.
"""
self.tab_pages = TabbedPageSet(self,
page_names=['Fonts/Tabs', 'Highlighting', 'Keys', 'General',
'Extensions'])
@ -106,7 +113,23 @@ class ConfigDialog(Toplevel):
self.create_action_buttons().pack(side=BOTTOM)
def create_action_buttons(self):
"Return frame of action buttons for dialog."
"""Return frame of action buttons for dialog.
Methods:
ok
apply
cancel
help
Widget Structure:
outer: Frame
buttons: Frame
(no assignment): Button (ok)
(no assignment): Button (apply)
(no assignment): Button (cancel)
(no assignment): Button (help)
(no assignment): Frame
"""
if macosx.isAquaTk():
# Changing the default padding on OSX results in unreadable
# text in the buttons.
@ -130,12 +153,41 @@ class ConfigDialog(Toplevel):
def create_page_font_tab(self):
"""Return frame of widgets for Font/Tabs tab.
Configuration attributes:
Tk Variables:
font_size: Font size.
font_bold: Select font bold or not.
font_name: Font face.
Note: these 3 share var_changed_font callback.
space_num: Indentation width.
Data Attribute:
edit_font: Font widget with default font name, size, and weight.
Methods:
load_font_cfg: Set vars and fontlist.
on_fontlist_select: Bound to fontlist button release
or key release.
set_font_sample: Command for opt_menu_font_size and
check_font_bold.
load_tab_cfg: Get current.
Widget Structure: (*) widgets bound to self
frame
frame_font: LabelFrame
frame_font_name: Frame
font_name_title: Label
(*)fontlist: ListBox
scroll_font: Scrollbar
frame_font_param: Frame
font_size_title: Label
(*)opt_menu_font_size: DynOptionMenu - font_size
check_font_bold: Checkbutton - font_bold
frame_font_sample: Frame
(*)font_sample: Label
frame_indent: LabelFrame
frame_indent_size: Frame
indent_size_title: Label
(*)scale_indent_size: Scale - space_num
"""
parent = self.parent
self.font_size = StringVar(parent)
@ -208,14 +260,71 @@ class ConfigDialog(Toplevel):
def create_page_highlight(self):
"""Return frame of widgets for Highlighting tab.
Configuration attributes:
Tk Variables:
colour: Color of selected target.
builtin_theme: Menu variable for built-in theme.
custom_theme: Menu variable for custom theme.
fg_bg_toggle: Toggle for foreground/background color.
colour: Color of selected target.
Note: this has no callback.
is_builtin_theme: Selector for built-in or custom theme.
highlight_target: Menu variable for the highlight tag target.
Instance Data Attributes:
theme_elements: Dictionary of tags for text highlighting.
The key is the display name and the value is a tuple of
(tag name, display sort order).
Methods [attachment]:
load_theme_cfg: Load current highlight colors.
get_colour: Invoke colorchooser [button_set_colour].
set_colour_sample_binding: Call set_colour_sample [fg_bg_toggle].
set_highlight_target: set fg_bg_toggle, set_color_sample().
set_colour_sample: Set frame background to target.
on_new_colour_set: Set new color and add option.
paint_theme_sample: Recolor sample.
get_new_theme_name: Get from popup.
create_new_theme: Combine theme with changes and save.
save_as_new_theme: Save [button_save_custom_theme].
set_theme_type: Command for [is_builtin_theme].
delete_custom_theme: Ativate default [button_delete_custom_theme].
save_new_theme: Save to userCfg['theme'] (is function).
Widget Structure: (*) widgets bound to self
frame
frame_custom: LabelFrame
(*)text_highlight_sample: Text
(*)frame_colour_set: Frame
button_set_colour: Button
(*)opt_menu_highlight_target: DynOptionMenu - highlight_target
frame_fg_bg_toggle: Frame
(*)radio_fg: Radiobutton - fg_bg_toggle
(*)radio_bg: Radiobutton - fg_bg_toggle
button_save_custom_theme: Button
frame_theme: LabelFrame
theme_type_title: Label
(*)radio_theme_builtin: Radiobutton - is_builtin_theme
(*)radio_theme_custom: Radiobutton - is_builtin_theme
(*)opt_menu_theme_builtin: DynOptionMenu - builtin_theme
(*)opt_menu_theme_custom: DynOptionMenu - custom_theme
(*)button_delete_custom_theme: Button
(*)new_custom_theme: Label
"""
self.theme_elements={
'Normal Text': ('normal', '00'),
'Python Keywords': ('keyword', '01'),
'Python Definitions': ('definition', '02'),
'Python Builtins': ('builtin', '03'),
'Python Comments': ('comment', '04'),
'Python Strings': ('string', '05'),
'Selected Text': ('hilite', '06'),
'Found Text': ('hit', '07'),
'Cursor': ('cursor', '08'),
'Editor Breakpoint': ('break', '09'),
'Shell Normal Text': ('console', '10'),
'Shell Error Text': ('error', '11'),
'Shell Stdout Text': ('stdout', '12'),
'Shell Stderr Text': ('stderr', '13'),
}
parent = self.parent
self.builtin_theme = StringVar(parent)
self.custom_theme = StringVar(parent)
@ -328,11 +437,44 @@ class ConfigDialog(Toplevel):
def create_page_keys(self):
"""Return frame of widgets for Keys tab.
Configuration attributes:
Tk Variables:
builtin_keys: Menu variable for built-in keybindings.
custom_keys: Menu variable for custom keybindings.
are_keys_builtin: Selector for built-in or custom keybindings.
keybinding: Action/key bindings.
Methods:
load_key_config: Set table.
load_keys_list: Reload active set.
keybinding_selected: Bound to list_bindings button release.
get_new_keys: Command for button_new_keys.
get_new_keys_name: Call popup.
create_new_key_set: Combine active keyset and changes.
set_keys_type: Command for are_keys_builtin.
delete_custom_keys: Command for button_delete_custom_keys.
save_as_new_key_set: Command for button_save_custom_keys.
save_new_key_set: Save to idleConf.userCfg['keys'] (is function).
deactivate_current_config: Remove keys bindings in editors.
Widget Structure: (*) widgets bound to self
frame
frame_custom: LabelFrame
frame_target: Frame
target_title: Label
scroll_target_y: Scrollbar
scroll_target_x: Scrollbar
(*)list_bindings: ListBox
(*)button_new_keys: Button
frame_key_sets: LabelFrame
frames[0]: Frame
(*)radio_keys_builtin: Radiobutton - are_keys_builtin
(*)radio_keys_custom: Radiobutton - are_keys_builtin
(*)opt_menu_keys_builtin: DynOptionMenu - builtin_keys
(*)opt_menu_keys_custom: DynOptionMenu - custom_keys
(*)new_custom_keys: Label
frames[1]: Frame
(*)button_delete_custom_keys: Button
button_save_custom_keys: Button
"""
parent = self.parent
self.builtin_keys = StringVar(parent)
@ -414,11 +556,45 @@ class ConfigDialog(Toplevel):
def create_page_general(self):
"""Return frame of widgets for General tab.
Configuration attributes:
Tk Variables:
win_width: Initial window width in characters.
win_height: Initial window height in characters.
startup_edit: Selector for opening in editor or shell mode.
autosave: Selector for save prompt popup when using Run.
Methods:
load_general_config:
help_source_selected: Bound to list_help button release.
set_helplist_button_states: Toggle based on list.
helplist_item_edit: Command for button_helplist_edit.
helplist_item_add: Command for button_helplist_add.
helplist_item_remove: Command for button_helplist_remove.
update_user_help_changed_items: Fill in changes.
Widget Structure: (*) widgets bound to self
frame
frame_run: LabelFrame
startup_title: Label
(*)radio_startup_edit: Radiobutton - startup_edit
(*)radio_startup_shell: Radiobutton - startup_edit
frame_save: LabelFrame
run_save_title: Label
(*)radio_save_ask: Radiobutton - autosave
(*)radio_save_auto: Radiobutton - autosave
frame_win_size: LabelFrame
win_size_title: Label
win_width_title: Label
(*)entry_win_width: Entry - win_width
win_height_title: Label
(*)entry_win_height: Entry - win_height
frame_help: LabelFrame
frame_helplist: Frame
frame_helplist_buttons: Frame
(*)button_helplist_edit
(*)button_helplist_add
(*)button_helplist_remove
scroll_helplist: Scrollbar
(*)list_help: ListBox
"""
parent = self.parent
self.win_width = StringVar(parent)
@ -684,7 +860,23 @@ class ConfigDialog(Toplevel):
changes.add_option('main', 'General', 'autosave', value)
def set_theme_type(self):
"Set available screen options based on builtin or custom theme."
"""Set available screen options based on builtin or custom theme.
Attributes accessed:
is_builtin_theme
Attributes updated:
opt_menu_theme_builtin
opt_menu_theme_custom
button_delete_custom_theme
radio_theme_custom
Called from:
handler for radio_theme_builtin and radio_theme_custom
delete_custom_theme
create_new_theme
load_theme_cfg
"""
if self.is_builtin_theme.get():
self.opt_menu_theme_builtin.config(state=NORMAL)
self.opt_menu_theme_custom.config(state=DISABLED)
@ -866,6 +1058,21 @@ class ConfigDialog(Toplevel):
The current theme is deactivated and the default theme is
activated. The custom theme is permanently removed from
the config file.
Attributes accessed:
custom_theme
Attributes updated:
radio_theme_custom
opt_menu_theme_custom
is_builtin_theme
builtin_theme
Methods:
deactivate_current_config
save_all_changed_extensions
activate_config_changes
set_theme_type
"""
theme_name = self.custom_theme.get()
delmsg = 'Are you sure you wish to delete the theme %r ?'
@ -897,6 +1104,18 @@ class ConfigDialog(Toplevel):
If a new color is selected while using a builtin theme, a
name must be supplied to create a custom theme.
Attributes accessed:
highlight_target
frame_colour_set
is_builtin_theme
Attributes updated:
colour
Methods:
get_new_theme_name
create_new_theme
"""
target = self.highlight_target.get()
prev_colour = self.frame_colour_set.cget('bg')
@ -937,7 +1156,12 @@ class ConfigDialog(Toplevel):
return new_theme
def save_as_new_theme(self):
"Prompt for new theme name and create the theme."
"""Prompt for new theme name and create the theme.
Methods:
get_new_theme_name
create_new_theme
"""
new_theme_name = self.get_new_theme_name('New Theme Name:')
if new_theme_name:
self.create_new_theme(new_theme_name)
@ -948,6 +1172,18 @@ class ConfigDialog(Toplevel):
Create the new theme based on the previously active theme
with the current changes applied. Once it is saved, then
activate the new theme.
Attributes accessed:
builtin_theme
custom_theme
Attributes updated:
opt_menu_theme_custom
is_builtin_theme
Method:
save_new_theme
set_theme_type
"""
if self.is_builtin_theme.get():
theme_type = 'default'
@ -975,6 +1211,12 @@ class ConfigDialog(Toplevel):
Event can result from either mouse click or Up or Down key.
Set font_name and example display to selection.
Attributes updated:
font_name: Set to name selected from fontlist.
Methods:
set_font_sample
"""
font = self.fontlist.get(
ACTIVE if event.type.name == 'KeyRelease' else ANCHOR)
@ -982,7 +1224,22 @@ class ConfigDialog(Toplevel):
self.set_font_sample()
def set_font_sample(self, event=None):
"Update the screen samples with the font settings from the dialog."
"""Update the screen samples with the font settings from the dialog.
Attributes accessed:
font_name
font_bold
font_size
Attributes updated:
font_sample: Set to selected font name, size, and weight.
text_highlight_sample: Set to selected font name, size, and weight.
Called from:
handler for opt_menu_font_size and check_font_bold
on_fontlist_select
load_font_cfg
"""
font_name = self.font_name.get()
font_weight = tkFont.BOLD if self.font_bold.get() else tkFont.NORMAL
new_font = (font_name, self.font_size.get(), font_weight)
@ -990,7 +1247,23 @@ class ConfigDialog(Toplevel):
self.text_highlight_sample.configure(font=new_font)
def set_highlight_target(self):
"Set fg/bg toggle and color based on highlight tag target."
"""Set fg/bg toggle and color based on highlight tag target.
Instance variables accessed:
highlight_target
Attributes updated:
radio_fg
radio_bg
fg_bg_toggle
Methods:
set_colour_sample
Called from:
var_changed_highlight_target
load_theme_cfg
"""
if self.highlight_target.get() == 'Cursor': # bg not possible
self.radio_fg.config(state=DISABLED)
self.radio_bg.config(state=DISABLED)
@ -1002,11 +1275,25 @@ class ConfigDialog(Toplevel):
self.set_colour_sample()
def set_colour_sample_binding(self, *args):
"Change color sample based on foreground/background toggle."
"""Change color sample based on foreground/background toggle.
Methods:
set_colour_sample
"""
self.set_colour_sample()
def set_colour_sample(self):
"Set the color of the frame background to reflect the selected target."
"""Set the color of the frame background to reflect the selected target.
Instance variables accessed:
theme_elements
highlight_target
fg_bg_toggle
text_highlight_sample
Attributes updated:
frame_colour_set
"""
# Set the colour sample area.
tag = self.theme_elements[self.highlight_target.get()][0]
plane = 'foreground' if self.fg_bg_toggle.get() else 'background'
@ -1014,7 +1301,25 @@ class ConfigDialog(Toplevel):
self.frame_colour_set.config(bg=colour)
def paint_theme_sample(self):
"Apply the theme colors to each element tag in the sample text."
"""Apply the theme colors to each element tag in the sample text.
Instance attributes accessed:
theme_elements
is_builtin_theme
builtin_theme
custom_theme
Attributes updated:
text_highlight_sample: Set the tag elements to the theme.
Methods:
set_colour_sample
Called from:
var_changed_builtin_theme
var_changed_custom_theme
load_theme_cfg
"""
if self.is_builtin_theme.get(): # Default theme
theme = self.builtin_theme.get()
else: # User theme
@ -1106,7 +1411,21 @@ class ConfigDialog(Toplevel):
';'.join(self.user_helplist[num-1][:2]))
def load_font_cfg(self):
"Load current configuration settings for the font options."
"""Load current configuration settings for the font options.
Retrieve current font values from idleConf.GetFont to set
as initial values for font widgets.
Attributes updated:
fontlist: Populate with fonts from tkinter.font.
font_name: Set to current font.
opt_menu_font_size: Populate valid options tuple and set
to current size.
font_bold: Set to current font weight.
Methods:
set_font_sample
"""
# Set base editor font selection list.
fonts = list(tkFont.families(self))
fonts.sort()
@ -1136,14 +1455,36 @@ class ConfigDialog(Toplevel):
self.set_font_sample()
def load_tab_cfg(self):
"Load current configuration settings for the tab options."
"""Load current configuration settings for the tab options.
Attributes updated:
space_num: Set to value from idleConf.
"""
# Set indent sizes.
space_num = idleConf.GetOption(
'main', 'Indent', 'num-spaces', default=4, type='int')
self.space_num.set(space_num)
def load_theme_cfg(self):
"Load current configuration settings for the theme options."
"""Load current configuration settings for the theme options.
Based on the is_builtin_theme toggle, the theme is set as
either builtin or custom and the initial widget values
reflect the current settings from idleConf.
Attributes updated:
is_builtin_theme: Set from idleConf.
opt_menu_theme_builtin: List of default themes from idleConf.
opt_menu_theme_custom: List of custom themes from idleConf.
radio_theme_custom: Disabled if there are no custom themes.
custom_theme: Message with additional information.
opt_menu_highlight_target: Create menu from self.theme_elements.
Methods:
set_theme_type
paint_theme_sample
set_highlight_target
"""
# Set current theme type radiobutton.
self.is_builtin_theme.set(idleConf.GetOption(
'main', 'Theme', 'default', type='bool', default=1))
@ -1231,6 +1572,13 @@ class ConfigDialog(Toplevel):
Load configuration from default and user config files and populate
the widgets on the config dialog pages.
Methods:
load_font_cfg
load_tab_cfg
load_theme_cfg
load_key_cfg
load_general_cfg
"""
self.load_font_cfg()
self.load_tab_cfg()
@ -1252,7 +1600,7 @@ class ConfigDialog(Toplevel):
idleConf.userCfg['keys'].SetOption(keyset_name, event, value)
def save_new_theme(self, theme_name, theme):
"""Save a newly created theme.
"""Save a newly created theme to idleConf.
theme_name - string, the name of the new theme
theme - dictionary containing the new theme
@ -1264,7 +1612,11 @@ class ConfigDialog(Toplevel):
idleConf.userCfg['highlight'].SetOption(theme_name, element, value)
def deactivate_current_config(self):
"Remove current key bindings."
"""Remove current key bindings.
Iterate over window instances defined in parent and remove
the keybindings.
"""
# Before a config is saved, some cleanup of current
# config must be done - remove the previous keybindings.
win_instances = self.parent.instance_dict.keys()
@ -1272,7 +1624,11 @@ class ConfigDialog(Toplevel):
instance.RemoveKeybindings()
def activate_config_changes(self):
"Dynamically apply configuration changes"
"""Apply configuration changes to current windows.
Dynamically update the current parent window instances
with some of the configuration changes.
"""
win_instances = self.parent.instance_dict.keys()
for instance in win_instances:
instance.ResetColorizer()
@ -1282,23 +1638,45 @@ class ConfigDialog(Toplevel):
instance.reset_help_menu_entries()
def cancel(self):
"Dismiss config dialog."
"""Dismiss config dialog.
Methods:
destroy: inherited
"""
self.destroy()
def ok(self):
"Apply config changes, then dismiss dialog."
"""Apply config changes, then dismiss dialog.
Methods:
apply
destroy: inherited
"""
self.apply()
self.destroy()
def apply(self):
"Apply config changes and leave dialog open."
"""Apply config changes and leave dialog open.
Methods:
deactivate_current_config
save_all_changed_extensions
activate_config_changes
"""
self.deactivate_current_config()
changes.save_all()
self.save_all_changed_extensions()
self.activate_config_changes()
def help(self):
"Create textview for config dialog help."
"""Create textview for config dialog help.
Attrbutes accessed:
tab_pages
Methods:
view_text: Method from textview module.
"""
page = self.tab_pages._current_page
view_text(self, title='Help for IDLE preferences',
text=help_common+help_pages.get(page, ''))
@ -1319,6 +1697,13 @@ class ConfigDialog(Toplevel):
All values are treated as text, and it is up to the user to supply
reasonable values. The only exception to this are the 'enable*' options,
which are boolean, and can be toggled with a True/False button.
Methods:
load_extentions:
extension_selected: Handle selection from list.
create_extension_frame: Hold widgets for one extension.
set_extension_value: Set in userCfg['extensions'].
save_all_changed_extensions: Call extension page Save().
"""
parent = self.parent
frame = self.tab_pages.pages['Extensions'].frame
@ -1460,7 +1845,14 @@ class ConfigDialog(Toplevel):
return self.ext_userCfg.SetOption(section, name, value)
def save_all_changed_extensions(self):
"""Save configuration changes to the user config file."""
"""Save configuration changes to the user config file.
Attributes accessed:
extensions
Methods:
set_extension_value
"""
has_changes = False
for ext_name in self.extensions:
options = self.extensions[ext_name]

3
Misc/NEWS.d/next/IDLE/2017-07-13-23-07-33.bpo-30913.aezn_e.rst Normal file
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@ -0,0 +1,3 @@
IDLE: Document ConfigDialog tk Vars, methods, and widgets in docstrings This
will facilitate improving the dialog and splitting up the class. Original
patch by Cheryl Sabella.