rt-thread/tools/pymenuconfig.py

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# SPDX-License-Identifier: ISC
# -*- coding: utf-8 -*-
"""
Overview
========
pymenuconfig is a small and simple frontend to Kconfiglib that's written
entirely in Python using Tkinter as its GUI toolkit.
Motivation
==========
Kconfig is a nice and powerful framework for build-time configuration and lots
of projects already benefit from using it. Kconfiglib allows to utilize power of
Kconfig by using scripts written in pure Python, without requiring one to build
Linux kernel tools written in C (this can be quite tedious on anything that's
not *nix). The aim of this project is to implement simple and small Kconfiglib
GUI frontend that runs on as much systems as possible.
Tkinter GUI toolkit is a natural choice if portability is considered, as it's
a part of Python standard library and is available virtually in every CPython
installation.
User interface
==============
I've tried to replicate look and fill of Linux kernel 'menuconfig' tool that
many users are used to, including keyboard-oriented control and textual
representation of menus with fixed-width font.
Usage
=====
The pymenuconfig module is executable and parses command-line args, so the
most simple way to run menuconfig is to execute script directly:
python pymenuconfig.py --kconfig Kconfig
As with most command-line tools list of options can be obtained with '--help':
python pymenuconfig.py --help
If installed with setuptools, one can run it like this:
python -m pymenuconfig --kconfig Kconfig
In case you're making a wrapper around menuconfig, you can either call main():
import pymenuconfig
pymenuconfig.main(['--kconfig', 'Kconfig'])
Or import MenuConfig class, instantiate it and manually run Tkinter's mainloop:
import tkinter
import kconfiglib
from pymenuconfig import MenuConfig
kconfig = kconfiglib.Kconfig()
mconf = MenuConfig(kconfig)
tkinter.mainloop()
"""
from __future__ import print_function
import os
import sys
import argparse
import kconfiglib
# Tk is imported differently depending on python major version
if sys.version_info[0] < 3:
import Tkinter as tk
import tkFont as font
import tkFileDialog as filedialog
import tkMessageBox as messagebox
else:
import tkinter as tk
from tkinter import font
from tkinter import filedialog
from tkinter import messagebox
class ListEntry(object):
"""
Represents visible menu node and holds all information related to displaying
menu node in a Listbox.
Instances of this class also handle all interaction with main window.
A node is displayed as a single line of text:
PREFIX INDENT BODY POSTFIX
- The PREFIX is always 3 characters or more and can take following values:
' ' comment, menu, bool choice, etc.
Inside menus:
'< >' bool symbol has value 'n'
'<*>' bool symbol has value 'y'
'[ ]' tristate symbol has value 'n'
'[M]' tristate symbol has value 'm'
'[*]' tristate symbol has value 'y'
'- -' symbol has value 'n' that's not editable
'-M-' symbol has value 'm' that's not editable
'-*-' symbol has value 'y' that's not editable
'(M)' tristate choice has value 'm'
'(*)' tristate choice has value 'y'
'(some value)' value of non-bool/tristate symbols
Inside choices:
'( )' symbol has value 'n'
'(M)' symbol has value 'm'
'(*)' symbol has value 'y'
- INDENT is a sequence of space characters. It's used in implicit menus, and
adds 2 spaces for each nesting level
- BODY is a menu node prompt. '***' is added if node is a comment
- POSTFIX adds '(NEW)', '--->' and selected choice symbol where applicable
Attributes:
node:
MenuNode instance this ListEntry is created for.
visible:
Whether entry should be shown in main window.
text:
String to display in a main window's Listbox.
refresh():
Updates .visible and .text attribute values.
set_tristate_value():
Set value for bool/tristate symbols, value should be one of 0,1,2 or None.
Usually it's called when user presses 'y', 'n', 'm' key.
set_str_value():
Set value for non-bool/tristate symbols, value is a string. Usually called
with a value returned by one of MenuConfig.ask_for_* methods.
toggle():
Toggle bool/tristate symbol value. Called when '<Space>' key is pressed in
a main window. Also selects choice value.
select():
Called when '<Return>' key is pressed in a main window with 'SELECT'
action selected. Displays submenu, choice selection menu, or just selects
choice value. For non-bool/tristate symbols asks MenuConfig window to
handle value input via one of MenuConfig.ask_for_* methods.
show_help():
Called when '<Return>' key is pressed in a main window with 'HELP' action
selected. Prepares text help and calls MenuConfig.show_text() to display
text window.
"""
# How to display value of BOOL and TRISTATE symbols
TRI_TO_DISPLAY = {
0: ' ',
1: 'M',
2: '*'
}
def __init__(self, mconf, node, indent):
self.indent = indent
self.node = node
self.menuconfig = mconf
self.visible = False
self.text = None
def __str__(self):
return self.text
def _is_visible(self):
node = self.node
v = True
v = v and node.prompt is not None
# It should be enough to check if prompt expression is not false and
# for menu nodes whether 'visible if' is not false
v = v and kconfiglib.expr_value(node.prompt[1]) > 0
if node.item == kconfiglib.MENU:
v = v and kconfiglib.expr_value(node.visibility) > 0
# If node references Symbol, then we also account for symbol visibility
# TODO: need to re-think whether this is needed
if isinstance(node.item, kconfiglib.Symbol):
if node.item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
v = v and len(node.item.assignable) > 0
else:
v = v and node.item.visibility > 0
return v
def _get_text(self):
"""
Compute textual representation of menu node (a line in ListView)
"""
node = self.node
item = node.item
# Determine prefix
prefix = ' '
if (isinstance(item, kconfiglib.Symbol) and item.choice is None or
isinstance(item, kconfiglib.Choice) and item.type is kconfiglib.TRISTATE):
# The node is for either a symbol outside of choice statement
# or a tristate choice
if item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
value = ListEntry.TRI_TO_DISPLAY[item.tri_value]
if len(item.assignable) > 1:
# Symbol is editable
if 1 in item.assignable:
prefix = '<{}>'.format(value)
else:
prefix = '[{}]'.format(value)
else:
# Symbol is not editable
prefix = '-{}-'.format(value)
else:
prefix = '({})'.format(item.str_value)
elif isinstance(item, kconfiglib.Symbol) and item.choice is not None:
# The node is for symbol inside choice statement
if item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
value = ListEntry.TRI_TO_DISPLAY[item.tri_value]
if len(item.assignable) > 0:
# Symbol is editable
prefix = '({})'.format(value)
else:
# Symbol is not editable
prefix = '-{}-'.format(value)
else:
prefix = '({})'.format(item.str_value)
# Prefix should be at least 3 chars long
if len(prefix) < 3:
prefix += ' ' * (3 - len(prefix))
# Body
body = ''
if node.prompt is not None:
if item is kconfiglib.COMMENT:
body = '*** {} ***'.format(node.prompt[0])
else:
body = node.prompt[0]
# Suffix
is_menu = False
is_new = False
if (item is kconfiglib.MENU
or isinstance(item, kconfiglib.Symbol) and node.is_menuconfig
or isinstance(item, kconfiglib.Choice)):
is_menu = True
if isinstance(item, kconfiglib.Symbol) and item.user_value is None:
is_new = True
# For symbol inside choice that has 'y' value, '(NEW)' is not displayed
if (isinstance(item, kconfiglib.Symbol)
and item.choice and item.choice.tri_value == 2):
is_new = False
# Choice selection - displayed only for choices which have 'y' value
choice_selection = None
if isinstance(item, kconfiglib.Choice) and node.item.str_value == 'y':
choice_selection = ''
if item.selection is not None:
sym = item.selection
if sym.nodes and sym.nodes[0].prompt is not None:
choice_selection = sym.nodes[0].prompt[0]
text = ' {prefix} {indent}{body}{choice}{new}{menu}'.format(
prefix=prefix,
indent=' ' * self.indent,
body=body,
choice='' if choice_selection is None else ' ({})'.format(
choice_selection
),
new=' (NEW)' if is_new else '',
menu=' --->' if is_menu else ''
)
return text
def refresh(self):
self.visible = self._is_visible()
self.text = self._get_text()
def set_tristate_value(self, value):
"""
Call to change value of BOOL, TRISTATE symbols
It's preferred to use this instead of item.set_value as it handles
all necessary interaction with MenuConfig window when symbol value
changes
None value is accepted but ignored
"""
item = self.node.item
if (isinstance(item, (kconfiglib.Symbol, kconfiglib.Choice))
and item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE)
and value is not None):
if value in item.assignable:
item.set_value(value)
elif value == 2 and 1 in item.assignable:
print(
'Symbol {} value is limited to \'m\'. Setting value \'m\' instead of \'y\''.format(item.name),
file=sys.stderr
)
item.set_value(1)
self.menuconfig.mark_as_changed()
self.menuconfig.refresh_display()
def set_str_value(self, value):
"""
Call to change value of HEX, INT, STRING symbols
It's preferred to use this instead of item.set_value as it handles
all necessary interaction with MenuConfig window when symbol value
changes
None value is accepted but ignored
"""
item = self.node.item
if (isinstance(item, kconfiglib.Symbol)
and item.type in (kconfiglib.INT, kconfiglib.HEX, kconfiglib.STRING)
and value is not None):
item.set_value(value)
self.menuconfig.mark_as_changed()
self.menuconfig.refresh_display()
def toggle(self):
"""
Called when <space> key is pressed
"""
item = self.node.item
if (isinstance(item, (kconfiglib.Symbol, kconfiglib.Choice))
and item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE)):
value = item.tri_value
# Find next value in Symbol/Choice.assignable, or use assignable[0]
try:
it = iter(item.assignable)
while value != next(it):
pass
self.set_tristate_value(next(it))
except StopIteration:
self.set_tristate_value(item.assignable[0])
def select(self):
"""
Called when <Return> key is pressed and SELECT action is selected
"""
item = self.node.item
# - Menu: dive into submenu
# - INT, HEX, STRING symbol: raise prompt to enter symbol value
# - BOOL, TRISTATE symbol inside 'y'-valued Choice: set 'y' value
if (item is kconfiglib.MENU
or isinstance(item, kconfiglib.Symbol) and self.node.is_menuconfig
or isinstance(item, kconfiglib.Choice)):
# Dive into submenu
self.menuconfig.show_submenu(self.node)
elif (isinstance(item, kconfiglib.Symbol) and item.type in
(kconfiglib.INT, kconfiglib.HEX, kconfiglib.STRING)):
# Raise prompt to enter symbol value
ident = self.node.prompt[0] if self.node.prompt is not None else None
title = 'Symbol: {}'.format(item.name)
if item.type is kconfiglib.INT:
# Find enabled ranges
ranges = [
(int(start.str_value), int(end.str_value))
for start, end, expr in item.ranges
if kconfiglib.expr_value(expr) > 0
]
# Raise prompt
self.set_str_value(str(self.menuconfig.ask_for_int(
ident=ident,
title=title,
value=item.str_value,
ranges=ranges
)))
elif item.type is kconfiglib.HEX:
# Find enabled ranges
ranges = [
(int(start.str_value, base=16), int(end.str_value, base=16))
for start, end, expr in item.ranges
if kconfiglib.expr_value(expr) > 0
]
# Raise prompt
self.set_str_value(hex(self.menuconfig.ask_for_hex(
ident=ident,
title=title,
value=item.str_value,
ranges=ranges
)))
elif item.type is kconfiglib.STRING:
# Raise prompt
self.set_str_value(self.menuconfig.ask_for_string(
ident=ident,
title=title,
value=item.str_value
))
elif (isinstance(item, kconfiglib.Symbol)
and item.choice is not None and item.choice.tri_value == 2):
# Symbol inside choice -> set symbol value to 'y'
self.set_tristate_value(2)
def show_help(self):
node = self.node
item = self.node.item
if isinstance(item, (kconfiglib.Symbol, kconfiglib.Choice)):
title = 'Help for symbol: {}'.format(item.name)
if node.help:
help = node.help
else:
help = 'There is no help available for this option.\n'
lines = []
lines.append(help)
lines.append(
'Symbol: {} [={}]'.format(
item.name if item.name else '<UNNAMED>', item.str_value
)
)
lines.append('Type : {}'.format(kconfiglib.TYPE_TO_STR[item.type]))
for n in item.nodes:
lines.append('Prompt: {}'.format(n.prompt[0] if n.prompt else '<EMPTY>'))
lines.append(' Defined at {}:{}'.format(n.filename, n.linenr))
lines.append(' Depends on: {}'.format(kconfiglib.expr_str(n.dep)))
text = '\n'.join(lines)
else:
title = 'Help'
text = 'Help not available for this menu node.\n'
self.menuconfig.show_text(text, title)
self.menuconfig.refresh_display()
class EntryDialog(object):
"""
Creates modal dialog (top-level Tk window) with labels, entry box and two
buttons: OK and CANCEL.
"""
def __init__(self, master, text, title, ident=None, value=None):
self.master = master
dlg = self.dlg = tk.Toplevel(master)
self.dlg.withdraw() #hiden window
dlg.title(title)
# Identifier label
if ident is not None:
self.label_id = tk.Label(dlg, anchor=tk.W, justify=tk.LEFT)
self.label_id['font'] = font.nametofont('TkFixedFont')
self.label_id['text'] = '# {}'.format(ident)
self.label_id.pack(fill=tk.X, padx=2, pady=2)
# Label
self.label = tk.Label(dlg, anchor=tk.W, justify=tk.LEFT)
self.label['font'] = font.nametofont('TkFixedFont')
self.label['text'] = text
self.label.pack(fill=tk.X, padx=10, pady=4)
# Entry box
self.entry = tk.Entry(dlg)
self.entry['font'] = font.nametofont('TkFixedFont')
self.entry.pack(fill=tk.X, padx=2, pady=2)
# Frame for buttons
self.frame = tk.Frame(dlg)
self.frame.pack(padx=2, pady=2)
# Button
self.btn_accept = tk.Button(self.frame, text='< Ok >', command=self.accept)
self.btn_accept['font'] = font.nametofont('TkFixedFont')
self.btn_accept.pack(side=tk.LEFT, padx=2)
self.btn_cancel = tk.Button(self.frame, text='< Cancel >', command=self.cancel)
self.btn_cancel['font'] = font.nametofont('TkFixedFont')
self.btn_cancel.pack(side=tk.LEFT, padx=2)
# Bind Enter and Esc keys
self.dlg.bind('<Return>', self.accept)
self.dlg.bind('<Escape>', self.cancel)
# Dialog is resizable only by width
self.dlg.resizable(1, 0)
# Set supplied value (if any)
if value is not None:
self.entry.insert(0, value)
self.entry.selection_range(0, tk.END)
# By default returned value is None. To caller this means that entry
# process was cancelled
self.value = None
# Modal dialog
dlg.transient(master)
dlg.grab_set()
# Center dialog window
_center_window_above_parent(master, dlg)
self.dlg.deiconify() # show window
# Focus entry field
self.entry.focus_set()
def accept(self, ev=None):
self.value = self.entry.get()
self.dlg.destroy()
def cancel(self, ev=None):
self.dlg.destroy()
class TextDialog(object):
def __init__(self, master, text, title):
self.master = master
dlg = self.dlg = tk.Toplevel(master)
self.dlg.withdraw() #hiden window
dlg.title(title)
dlg.minsize(600,400)
# Text
self.text = tk.Text(dlg, height=1)
self.text['font'] = font.nametofont('TkFixedFont')
self.text.insert(tk.END, text)
# Make text read-only
self.text['state'] = tk.DISABLED
self.text.pack(fill=tk.BOTH, expand=1, padx=4, pady=4)
# Frame for buttons
self.frame = tk.Frame(dlg)
self.frame.pack(padx=2, pady=2)
# Button
self.btn_accept = tk.Button(self.frame, text='< Ok >', command=self.accept)
self.btn_accept['font'] = font.nametofont('TkFixedFont')
self.btn_accept.pack(side=tk.LEFT, padx=2)
# Bind Enter and Esc keys
self.dlg.bind('<Return>', self.accept)
self.dlg.bind('<Escape>', self.cancel)
# Modal dialog
dlg.transient(master)
dlg.grab_set()
# Center dialog window
_center_window_above_parent(master, dlg)
self.dlg.deiconify() # show window
# Focus entry field
self.text.focus_set()
def accept(self, ev=None):
self.dlg.destroy()
def cancel(self, ev=None):
self.dlg.destroy()
class MenuConfig(object):
(
ACTION_SELECT,
ACTION_EXIT,
ACTION_HELP,
ACTION_LOAD,
ACTION_SAVE,
ACTION_SAVE_AS
) = range(6)
ACTIONS = (
('Select', ACTION_SELECT),
('Exit', ACTION_EXIT),
('Help', ACTION_HELP),
('Load', ACTION_LOAD),
('Save', ACTION_SAVE),
('Save as', ACTION_SAVE_AS),
)
def __init__(self, kconfig, __silent=None):
self.kconfig = kconfig
self.__silent = __silent
if self.__silent is True:
return
# Instantiate Tk widgets
self.root = tk.Tk()
self.root.withdraw() #hiden window
dlg = self.root
# Window title
dlg.title('pymenuconfig')
# Some empirical window size
dlg.minsize(500, 300)
dlg.geometry('800x600')
# Label that shows position in menu tree
self.label_position = tk.Label(
dlg,
anchor=tk.W,
justify=tk.LEFT,
font=font.nametofont('TkFixedFont')
)
self.label_position.pack(fill=tk.X, padx=2)
# 'Tip' frame and text
self.frame_tip = tk.LabelFrame(
dlg,
text='Tip'
)
self.label_tip = tk.Label(
self.frame_tip,
anchor=tk.W,
justify=tk.LEFT,
font=font.nametofont('TkFixedFont')
)
self.label_tip['text'] = '\n'.join([
'Arrow keys navigate the menu. <Enter> performs selected operation (set of buttons at the bottom)',
'Pressing <Y> includes, <N> excludes, <M> modularizes features',
'Press <Esc> to go one level up. Press <Esc> at top level to exit',
'Legend: [*] built-in [ ] excluded <M> module < > module capable'
])
self.label_tip.pack(fill=tk.BOTH, expand=1, padx=4, pady=4)
self.frame_tip.pack(fill=tk.X, padx=2)
# Main ListBox where all the magic happens
self.list = tk.Listbox(
dlg,
selectmode=tk.SINGLE,
activestyle=tk.NONE,
font=font.nametofont('TkFixedFont'),
height=1,
)
self.list['foreground'] = 'Blue'
self.list['background'] = 'Gray95'
# Make selection invisible
self.list['selectbackground'] = self.list['background']
self.list['selectforeground'] = self.list['foreground']
self.list.pack(fill=tk.BOTH, expand=1, padx=20, ipadx=2)
# Frame with radio buttons
self.frame_radio = tk.Frame(dlg)
self.radio_buttons = []
self.tk_selected_action = tk.IntVar()
for text, value in MenuConfig.ACTIONS:
btn = tk.Radiobutton(
self.frame_radio,
variable=self.tk_selected_action,
value=value
)
btn['text'] = '< {} >'.format(text)
btn['font'] = font.nametofont('TkFixedFont')
btn['indicatoron'] = 0
btn.pack(side=tk.LEFT)
self.radio_buttons.append(btn)
self.frame_radio.pack(anchor=tk.CENTER, pady=4)
# Label with status information
self.tk_status = tk.StringVar()
self.label_status = tk.Label(
dlg,
textvariable=self.tk_status,
anchor=tk.W,
justify=tk.LEFT,
font=font.nametofont('TkFixedFont')
)
self.label_status.pack(fill=tk.X, padx=4, pady=4)
# Center window
_center_window(self.root, dlg)
self.root.deiconify() # show window
# Disable keyboard focus on all widgets ...
self._set_option_to_all_children(dlg, 'takefocus', 0)
# ... except for main ListBox
self.list['takefocus'] = 1
self.list.focus_set()
# Bind keys
dlg.bind('<Escape>', self.handle_keypress)
dlg.bind('<space>', self.handle_keypress)
dlg.bind('<Return>', self.handle_keypress)
dlg.bind('<Right>', self.handle_keypress)
dlg.bind('<Left>', self.handle_keypress)
dlg.bind('<Up>', self.handle_keypress)
dlg.bind('<Down>', self.handle_keypress)
dlg.bind('n', self.handle_keypress)
dlg.bind('m', self.handle_keypress)
dlg.bind('y', self.handle_keypress)
# Register callback that's called when window closes
dlg.wm_protocol('WM_DELETE_WINDOW', self._close_window)
# Init fields
self.node = None
self.node_stack = []
self.all_entries = []
self.shown_entries = []
self.config_path = None
self.unsaved_changes = False
self.status_string = 'NEW CONFIG'
self.update_status()
# Display first child of top level node (the top level node is 'mainmenu')
self.show_node(self.kconfig.top_node)
def _set_option_to_all_children(self, widget, option, value):
widget[option] = value
for n,c in widget.children.items():
self._set_option_to_all_children(c, option, value)
def _invert_colors(self, idx):
self.list.itemconfig(idx, {'bg' : self.list['foreground']})
self.list.itemconfig(idx, {'fg' : self.list['background']})
@property
def _selected_entry(self):
# type: (...) -> ListEntry
active_idx = self.list.index(tk.ACTIVE)
if active_idx >= 0 and active_idx < len(self.shown_entries):
return self.shown_entries[active_idx]
return None
def _select_node(self, node):
# type: (kconfiglib.MenuNode) -> None
"""
Attempts to select entry that corresponds to given MenuNode in main listbox
"""
idx = None
for i, e in enumerate(self.shown_entries):
if e.node is node:
idx = i
break
if idx is not None:
self.list.activate(idx)
self.list.see(idx)
self._invert_colors(idx)
def handle_keypress(self, ev):
keysym = ev.keysym
if keysym == 'Left':
self._select_action(prev=True)
elif keysym == 'Right':
self._select_action(prev=False)
elif keysym == 'Up':
self.refresh_display(reset_selection=False)
elif keysym == 'Down':
self.refresh_display(reset_selection=False)
elif keysym == 'space':
self._selected_entry.toggle()
elif keysym in ('n', 'm', 'y'):
self._selected_entry.set_tristate_value(kconfiglib.STR_TO_TRI[keysym])
elif keysym == 'Return':
action = self.tk_selected_action.get()
if action == self.ACTION_SELECT:
self._selected_entry.select()
elif action == self.ACTION_EXIT:
self._action_exit()
elif action == self.ACTION_HELP:
self._selected_entry.show_help()
elif action == self.ACTION_LOAD:
if self.prevent_losing_changes():
self.open_config()
elif action == self.ACTION_SAVE:
self.save_config()
elif action == self.ACTION_SAVE_AS:
self.save_config(force_file_dialog=True)
elif keysym == 'Escape':
self._action_exit()
pass
def _close_window(self):
if self.prevent_losing_changes():
print('Exiting..')
if self.__silent is True:
return
self.root.destroy()
def _action_exit(self):
if self.node_stack:
self.show_parent()
else:
self._close_window()
def _select_action(self, prev=False):
# Determine the radio button that's activated
action = self.tk_selected_action.get()
if prev:
action -= 1
else:
action += 1
action %= len(MenuConfig.ACTIONS)
self.tk_selected_action.set(action)
def _collect_list_entries(self, start_node, indent=0):
"""
Given first MenuNode of nodes list at some level in menu hierarchy,
collects nodes that may be displayed when viewing and editing that
hierarchy level. Includes implicit menu nodes, i.e. the ones dependent
on 'config' entry via 'if' statement which are internally represented
as children of their dependency
"""
entries = []
n = start_node
while n is not None:
entries.append(ListEntry(self, n, indent))
# If node refers to a symbol (X) and has children, it is either
# 'config' or 'menuconfig'. The children are items inside 'if X'
# block that immediately follows 'config' or 'menuconfig' entry.
# If it's a 'menuconfig' then corresponding MenuNode is shown as a
# regular menu entry. But if it's a 'config', then its children need
# to be shown in the same list with their texts indented
if (n.list is not None
and isinstance(n.item, kconfiglib.Symbol)
and n.is_menuconfig == False):
entries.extend(
self._collect_list_entries(n.list, indent=indent + 1)
)
n = n.next
return entries
def refresh_display(self, reset_selection=False):
# Refresh list entries' attributes
for e in self.all_entries:
e.refresh()
# Try to preserve selection upon refresh
selected_entry = self._selected_entry
# Also try to preserve listbox scroll offset
# If not preserved, the see() method will make wanted item to appear
# at the bottom of the list, even if previously it was in center
scroll_offset = self.list.yview()[0]
# Show only visible entries
self.shown_entries = [e for e in self.all_entries if e.visible]
# Refresh listbox contents
self.list.delete(0, tk.END)
self.list.insert(0, *self.shown_entries)
if selected_entry and not reset_selection:
# Restore scroll position
self.list.yview_moveto(scroll_offset)
# Activate previously selected node
self._select_node(selected_entry.node)
else:
# Select the topmost entry
self.list.activate(0)
self._invert_colors(0)
# Select ACTION_SELECT on each refresh (mimic C menuconfig)
self.tk_selected_action.set(self.ACTION_SELECT)
# Display current location in configuration tree
pos = []
for n in self.node_stack + [self.node]:
pos.append(n.prompt[0] if n.prompt else '[none]')
self.label_position['text'] = u'# ' + u' -> '.join(pos)
def show_node(self, node):
self.node = node
if node.list is not None:
self.all_entries = self._collect_list_entries(node.list)
else:
self.all_entries = []
self.refresh_display(reset_selection=True)
def show_submenu(self, node):
self.node_stack.append(self.node)
self.show_node(node)
def show_parent(self):
if self.node_stack:
select_node = self.node
parent_node = self.node_stack.pop()
self.show_node(parent_node)
# Restore previous selection
self._select_node(select_node)
self.refresh_display(reset_selection=False)
def ask_for_string(self, ident=None, title='Enter string', value=None):
"""
Raises dialog with text entry widget and asks user to enter string
Return:
- str - user entered string
- None - entry was cancelled
"""
text = 'Please enter a string value\n' \
'User <Enter> key to accept the value\n' \
'Use <Esc> key to cancel entry\n'
d = EntryDialog(self.root, text, title, ident=ident, value=value)
self.root.wait_window(d.dlg)
self.list.focus_set()
return d.value
def ask_for_int(self, ident=None, title='Enter integer value', value=None, ranges=()):
"""
Raises dialog with text entry widget and asks user to enter decimal number
Ranges should be iterable of tuples (start, end),
where 'start' and 'end' specify allowed value range (inclusively)
Return:
- int - when valid number that falls within any one of specified ranges is entered
- None - invalid number or entry was cancelled
"""
text = 'Please enter a decimal value. Fractions will not be accepted\n' \
'User <Enter> key to accept the value\n' \
'Use <Esc> key to cancel entry\n'
d = EntryDialog(self.root, text, title, ident=ident, value=value)
self.root.wait_window(d.dlg)
self.list.focus_set()
ivalue = None
if d.value:
try:
ivalue = int(d.value)
except ValueError:
messagebox.showerror('Bad value', 'Entered value \'{}\' is not an integer'.format(d.value))
if ivalue is not None and ranges:
allowed = False
for start, end in ranges:
allowed = allowed or start <= ivalue and ivalue <= end
if not allowed:
messagebox.showerror(
'Bad value',
'Entered value \'{:d}\' is out of range\n'
'Allowed:\n{}'.format(
ivalue,
'\n'.join([' {:d} - {:d}'.format(s,e) for s,e in ranges])
)
)
ivalue = None
return ivalue
def ask_for_hex(self, ident=None, title='Enter hexadecimal value', value=None, ranges=()):
"""
Raises dialog with text entry widget and asks user to enter decimal number
Ranges should be iterable of tuples (start, end),
where 'start' and 'end' specify allowed value range (inclusively)
Return:
- int - when valid number that falls within any one of specified ranges is entered
- None - invalid number or entry was cancelled
"""
text = 'Please enter a hexadecimal value\n' \
'User <Enter> key to accept the value\n' \
'Use <Esc> key to cancel entry\n'
d = EntryDialog(self.root, text, title, ident=ident, value=value)
self.root.wait_window(d.dlg)
self.list.focus_set()
hvalue = None
if d.value:
try:
hvalue = int(d.value, base=16)
except ValueError:
messagebox.showerror('Bad value', 'Entered value \'{}\' is not a hexadecimal value'.format(d.value))
if hvalue is not None and ranges:
allowed = False
for start, end in ranges:
allowed = allowed or start <= hvalue and hvalue <= end
if not allowed:
messagebox.showerror(
'Bad value',
'Entered value \'0x{:x}\' is out of range\n'
'Allowed:\n{}'.format(
hvalue,
'\n'.join([' 0x{:x} - 0x{:x}'.format(s,e) for s,e in ranges])
)
)
hvalue = None
return hvalue
def show_text(self, text, title='Info'):
"""
Raises dialog with read-only text view that contains supplied text
"""
d = TextDialog(self.root, text, title)
self.root.wait_window(d.dlg)
self.list.focus_set()
def mark_as_changed(self):
"""
Marks current config as having unsaved changes
Should be called whenever config value is changed
"""
self.unsaved_changes = True
self.update_status()
def set_status_string(self, status):
"""
Sets status string displayed at the bottom of the window
"""
self.status_string = status
self.update_status()
def update_status(self):
"""
Updates status bar display
Status bar displays:
- unsaved status
- current config path
- status string (see set_status_string())
"""
if self.__silent is True:
return
self.tk_status.set('{} [{}] {}'.format(
'<UNSAVED>' if self.unsaved_changes else '',
self.config_path if self.config_path else '',
self.status_string
))
def _check_is_visible(self, node):
v = True
v = v and node.prompt is not None
# It should be enough to check if prompt expression is not false and
# for menu nodes whether 'visible if' is not false
v = v and kconfiglib.expr_value(node.prompt[1]) > 0
if node.item == kconfiglib.MENU:
v = v and kconfiglib.expr_value(node.visibility) > 0
# If node references Symbol, then we also account for symbol visibility
# TODO: need to re-think whether this is needed
if isinstance(node.item, kconfiglib.Symbol):
if node.item.type in (kconfiglib.BOOL, kconfiglib.TRISTATE):
v = v and len(node.item.assignable) > 0
else:
v = v and node.item.visibility > 0
return v
def config_is_changed(self):
is_changed = False
node = self.kconfig.top_node.list
if not node:
# Empty configuration
return is_changed
while 1:
item = node.item
if isinstance(item, kconfiglib.Symbol) and item.user_value is None and self._check_is_visible(node):
is_changed = True
print("Config \"# {}\" has changed, need save config file\n".format(node.prompt[0]))
break;
# Iterative tree walk using parent pointers
if node.list:
node = node.list
elif node.next:
node = node.next
else:
while node.parent:
node = node.parent
if node.next:
node = node.next
break
else:
break
return is_changed
def prevent_losing_changes(self):
"""
Checks if there are unsaved changes and asks user to save or discard them
This routine should be called whenever current config is going to be discarded
Raises the usual 'Yes', 'No', 'Cancel' prompt.
Return:
- True: caller may safely drop current config state
- False: user needs to continue work on current config ('Cancel' pressed or saving failed)
"""
if self.config_is_changed() == True:
self.mark_as_changed()
if not self.unsaved_changes:
return True
if self.__silent:
saved = self.save_config()
return saved
res = messagebox.askyesnocancel(
parent=self.root,
title='Unsaved changes',
message='Config has unsaved changes. Do you want to save them?'
)
if res is None:
return False
elif res is False:
return True
# Otherwise attempt to save config and succeed only if config has been saved successfully
saved = self.save_config()
return saved
def open_config(self, path=None):
if path is None:
# Create open dialog. Either existing file is selected or no file is selected as a result
path = filedialog.askopenfilename(
parent=self.root,
title='Open config..',
initialdir=os.path.dirname(self.config_path) if self.config_path else os.getcwd(),
filetypes=(('.config files', '*.config'), ('All files', '*.*'))
)
if not path or not os.path.isfile(path):
return False
path = os.path.abspath(path)
print('Loading config: \'{}\''.format(path))
# Try to open given path
# If path does not exist, we still set current config path to it but don't load anything
self.unsaved_changes = False
self.config_path = path
if not os.path.exists(path):
self.set_status_string('New config')
self.mark_as_changed()
return True
# Load config and set status accordingly
try:
self.kconfig.load_config(path)
except IOError as e:
self.set_status_string('Failed to load: \'{}\''.format(path))
if not self.__silent:
self.refresh_display()
print('Failed to load config \'{}\': {}'.format(path, e))
return False
self.set_status_string('Opened config')
if not self.__silent:
self.refresh_display()
return True
def save_config(self, force_file_dialog=False):
path = self.config_path
if path is None or force_file_dialog:
path = filedialog.asksaveasfilename(
parent=self.root,
title='Save config as..',
initialdir=os.path.dirname(self.config_path) if self.config_path else os.getcwd(),
initialfile=os.path.basename(self.config_path) if self.config_path else None,
defaultextension='.config',
filetypes=(('.config files', '*.config'), ('All files', '*.*'))
)
if not path:
return False
path = os.path.abspath(path)
print('Saving config: \'{}\''.format(path))
# Try to save config to selected path
try:
self.kconfig.write_config(path, header="#\n# Automatically generated file; DO NOT EDIT.\n")
self.unsaved_changes = False
self.config_path = path
self.set_status_string('Saved config')
except IOError as e:
self.set_status_string('Failed to save: \'{}\''.format(path))
print('Save failed: {}'.format(e), file=sys.stderr)
return False
return True
def _center_window(root, window):
# type: (tk.Tk, tk.Toplevel) -> None
"""
Attempts to center window on screen
"""
root.update_idletasks()
# root.eval('tk::PlaceWindow {!s} center'.format(
# window.winfo_pathname(window.winfo_id())
# ))
w = window.winfo_width()
h = window.winfo_height()
ws = window.winfo_screenwidth()
hs = window.winfo_screenheight()
x = (ws / 2) - (w / 2)
y = (hs / 2) - (h / 2)
window.geometry('+{:d}+{:d}'.format(int(x), int(y)))
window.lift()
window.focus_force()
def _center_window_above_parent(root, window):
# type: (tk.Tk, tk.Toplevel) -> None
"""
Attempts to center window above its parent window
"""
# root.eval('tk::PlaceWindow {!s} center'.format(
# window.winfo_pathname(window.winfo_id())
# ))
root.update_idletasks()
parent = window.master
w = window.winfo_width()
h = window.winfo_height()
px = parent.winfo_rootx()
py = parent.winfo_rooty()
pw = parent.winfo_width()
ph = parent.winfo_height()
x = px + (pw / 2) - (w / 2)
y = py + (ph / 2) - (h / 2)
window.geometry('+{:d}+{:d}'.format(int(x), int(y)))
window.lift()
window.focus_force()
def main(argv=None):
if argv is None:
argv = sys.argv[1:]
# Instantiate cmd options parser
parser = argparse.ArgumentParser(
description='Interactive Kconfig configuration editor'
)
parser.add_argument(
'--kconfig',
metavar='FILE',
type=str,
default='Kconfig',
help='path to root Kconfig file'
)
parser.add_argument(
'--config',
metavar='FILE',
type=str,
help='path to .config file to load'
)
if "--silent" in argv:
parser.add_argument(
'--silent',
dest = '_silent_',
type=str,
help='silent mode, not show window'
)
args = parser.parse_args(argv)
kconfig_path = args.kconfig
config_path = args.config
# Verify that Kconfig file exists
if not os.path.isfile(kconfig_path):
raise RuntimeError('\'{}\': no such file'.format(kconfig_path))
# Parse Kconfig files
kconf = kconfiglib.Kconfig(filename=kconfig_path)
if "--silent" not in argv:
print("In normal mode. Will show menuconfig window.")
mc = MenuConfig(kconf)
# If config file was specified, load it
if config_path:
mc.open_config(config_path)
print("Enter mainloop. Waiting...")
tk.mainloop()
else:
print("In silent mode. Don`t show menuconfig window.")
mc = MenuConfig(kconf, True)
# If config file was specified, load it
if config_path:
mc.open_config(config_path)
mc._close_window()
if __name__ == '__main__':
main()