437 lines
15 KiB
Python
Executable File
437 lines
15 KiB
Python
Executable File
#!/usr/bin/env python
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# vim: tabstop=8 softtabstop=2 shiftwidth=2 nocin si et ft=python
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# View Screen has 3 parts
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# (Instrument Configuration), (Configuration Options), (Option Implementation)
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# Uses MVC implemented as InstConfigData<M>, InstConfigView<V>, ConfigEdit<C>
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#
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# InstConfigData <>--- ConfigParser.SafeConfig
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# |--set_cfparse()
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# ConfigEdit <>--- InstConfigData, PresentationData
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# |--set_cfdata(), set_presdata()
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# |--set_xyz_data() call self.cfgdata.set_xyz() methods
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#
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# urwid.Frame
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# ^
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# InstConfigView <>--- ConfigEdit, PresentationData
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# |--set_cfedit(), set_presdata()
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#
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# PresentationData
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# |--set_cfdata()
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import os
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import argparse
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import ConfigParser
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import urwid
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import copy
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from collections import defaultdict
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## TODO Configuration Editor
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## Configuration Viewer
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Palette = [
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('body', 'dark cyan', '', 'standout'),
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('focus', 'dark red', '', 'standout'),
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('head', 'light red', 'black'),
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]
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#FIXME Replace the [(name,stateval)] list imp_states with list of item names
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class RadioButtonListWalker(urwid.SimpleListWalker):
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button_dict = {}
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def __init__(self, item_states, on_state_change=None, user_data=None):
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radio_grp = []
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mapped_rb_list = []
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for item,stateval in item_states:
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rb = urwid.RadioButton(radio_grp, item, state=stateval, on_state_change=on_state_change, user_data=user_data)
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self.button_dict[item] = rb
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mapped_rb = urwid.AttrMap(rb, 'body', 'focus')
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mapped_rb_list.append(mapped_rb)
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super(RadioButtonListWalker, self).__init__(mapped_rb_list)
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return
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class CheckBoxListWalker(urwid.SimpleListWalker):
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button_dict = {}
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def __init__(self, item_states, on_state_change = None, user_data = None):
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mapped_cb_list = []
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for item,stateval in item_states:
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cb = urwid.CheckBox(item, state = stateval, on_state_change = on_state_change, user_data = user_data)
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self.button_dict[item] = cb
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mapped_cb = urwid.AttrMap(cb, 'body', 'focus')
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mapped_cb_list.append(mapped_cb)
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super(CheckBoxListWalker, self).__init__(mapped_cb_list)
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return
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# Selects listwalker to display for ImpListBox on focus
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class OptionListWalker(CheckBoxListWalker):
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def __init__(self, opt_dict, statechange_cb):
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urwid.register_signal(OptionListWalker, ['focus_change'])
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item_states = [(i,d['enabled']) for i,d in opt_dict.iteritems()]
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item_states.sort()
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super(OptionListWalker, self).__init__(item_states, statechange_cb)
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return
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def set_focus(self, pos):
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dbg.msg(0, 'OptionListWalker:set_focus({0}) -> emit focus_change'.format(pos))
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urwid.emit_signal(self, 'focus_change', pos)
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return super(OptionListWalker, self).set_focus(pos)
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# ClosedListBox implements a ListBox which prevents selection outside of the
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# list using the 'up' or 'down' keys
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class ClosedListBox(urwid.ListBox):
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def keypress(self, size, key):
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"""Prevents navigating outside of a ClosedListBox with the up and down arrow keys"""
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pos = self.get_focus()[1]
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ll = len(self.body)
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if (pos <= 0 and key == 'up') or (pos >= ll-1 and key == 'down'):
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return
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else:
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return super(ClosedListBox, self).keypress(size, key)
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# List of Checkboxes
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class OptionListBox(ClosedListBox):
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def __init__(self, listwalker):
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super(OptionListBox, self).__init__(listwalker)
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return
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# List of RadioButtons
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class ImpListBox(ClosedListBox):
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def __init__(self, listwalker):
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super(ImpListBox, self).__init__(listwalker)
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return
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def use_listwalker(self, liswalker):
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self.body.contents[:] = liswalker
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return
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class InstConfigView(urwid.Pile):
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def __init__(self, cf_dat, cf_man, dbmsg):
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self.cf_dat = cf_dat
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self.cf_man = cf_man
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option_ListBoxes = [
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self.cf_man.config_lb,
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self.cf_man.opt_lb,
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self.cf_man.imp_lb,
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dbmsg]
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super(InstConfigView, self).__init__(option_ListBoxes)
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return
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def keyinput(self, key):
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if key == 'meta q':
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raise urwid.ExitMainLoop()
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elif key == 'w':
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self.cf_dat.backup_files()
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self.cf_dat.write_config_file()
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elif key in ['right', 'tab']:
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if self.get_focus() == self.cf_man.config_lb:
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self.set_focus(self.cf_man.opt_lb)
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elif self.get_focus() == self.cf_man.opt_lb:
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self.set_focus(self.cf_man.imp_lb)
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else:
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self.set_focus(self.cf_man.config_lb)
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elif key in ['left', 'shift tab']:
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if self.get_focus() == self.cf_man.config_lb:
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self.set_focus(self.cf_man.imp_lb)
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elif self.get_focus() == self.cf_man.opt_lb:
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self.set_focus(self.cf_man.config_lb)
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else:
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self.set_focus(self.cf_man.opt_lb)
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return
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class InstConfigData:
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msg_index = 4
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# configuration_dict: dict of instrument configurations as defined below,
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# {configname: {'enabled':T/F, 'cascade_list':[(option, dflt_imp)]} }
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configuration_dict = defaultdict(dict)
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# opt_dict: dict of configuration options as defined below,
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# {optname:{'enabled': T/F/Always, 'imptype':optype, 'selected_imp':dflt}}
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opt_dict = defaultdict(dict)
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# imp_dict: dict of implementations indexed by optype,
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# {optype: [impname] }
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imp_dict = defaultdict(list)
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# imp2opt_dict: Maps each implementation to an option or None,
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# {imp: opt/None}
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imp2opt_dict = {}
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def __init__(self):
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return
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def __get_configurations(self):
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for s in self.file_parser.sections():
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cascade_list = []
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if self.file_parser.has_option(s, 'cascade'):
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enabled = self.file_parser.get(s, 'enabled')
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for cascade_str in self.file_parser.get(s,'cascade').split(','):
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cascade_list.append(tuple(cascade_str.split(':')))
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if enabled.lower() in ['true','always']:
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stateval = True
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else:
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stateval = False
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self.configuration_dict[s]['enabled'] = stateval
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self.configuration_dict[s]['cascade_list'] = cascade_list
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def __get_options(self):
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for s in self.file_parser.sections():
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if self.file_parser.has_option(s, 'implementation'):
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selected_imp = self.file_parser.get(s, 'implementation')
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imptype = self.file_parser.get(s, 'optype')
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enabled = self.file_parser.get(s, 'enabled').lower()
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if enabled == 'always':
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stateval = True
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permanent = True
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elif enabled == 'true':
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stateval = True
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permanent = False
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else:
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stateval = False
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permanent = False
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if self.file_parser.has_option(s, 'id'):
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id = self.file_parser.get(s, 'id')
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self.opt_dict[s]['id'] = id
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self.opt_dict[s]['enabled'] = stateval
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self.opt_dict[s]['permanent'] = permanent
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self.opt_dict[s]['imptype'] = imptype
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if selected_imp in self.imp2opt_dict:
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self.opt_dict[s]['selected_imp'] = "none"
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else:
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self.opt_dict[s]['selected_imp'] = selected_imp
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print 'Add imp2opt_dict[{0}] = {1}'.format(selected_imp,s)
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self.imp2opt_dict[selected_imp] = s
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def __get_implementations(self):
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for s in self.file_parser.sections():
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if self.file_parser.has_option(s, 'imptype'):
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key = self.file_parser.get(s, 'imptype')
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self.imp_dict[key].append(s)
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if s not in self.imp2opt_dict:
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print 'Add imp2opt_dict[{0}] = none'.format(s)
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self.imp2opt_dict[s] = "none"
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def read_config_file(self, config_filename):
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self.config_filename = config_filename
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self.file_parser = ConfigParser.SafeConfigParser()
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self.file_parser.read(config_filename)
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self.__get_options()
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self.__get_implementations()
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self.__get_configurations()
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return
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def backup_files(self):
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for idx in range(8, 0, -1):
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if os.path.exists(self.config_filename + "." + str(idx)):
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os.rename(self.config_filename + "." + str(idx),
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self.config_filename + "." + str(idx + 1))
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if os.path.exists(self.config_filename):
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os.rename(self.config_filename, self.config_filename + ".1")
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def write_config_file(self):
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for item,dict in self.opt_dict.iteritems():
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if self.file_parser.get(item, 'enabled').lower() == 'always':
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enabled = 'Always'
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else:
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enabled = dict['enabled'].__str__()
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self.file_parser.set(item, 'enabled', enabled)
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self.file_parser.set(item, 'implementation', dict['selected_imp'])
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self.file_parser.set(item, 'optype', dict['imptype'])
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for item,dict in self.configuration_dict.iteritems():
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enabled = dict['enabled'].__str__()
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self.file_parser.set(item, 'enabled', enabled)
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for imp,opt in self.imp2opt_dict.iteritems():
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if imp != 'none' and 'id' in self.opt_dict[opt]:
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self.file_parser.set(imp, 'id', self.opt_dict[opt]['id'])
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with open(self.config_filename,'w') as cfile:
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for section in sorted(self.file_parser.sections()):
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cfile.write("[%s]\n" % section)
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for option in sorted(self.file_parser.options(section)):
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cfile.write("%s = %s\n" % (option, self.file_parser.get(section, option)))
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cfile.write("\n")
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#self.file_parser.write(cfile)
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def cf_statechange(self, checkbox, new_state, udat=None):
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cfg_id = checkbox.get_label()
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self.configuration_dict[cfg_id]['enabled'] = new_state
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def opt_statechange(self, checkbox, new_state, udat=None):
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opt = checkbox.get_label()
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dbg.msg(3, 'InstConfigData:opt_statechange({0},{1},{2})'.format(opt, new_state, udat))
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self.opt_dict[opt]['enabled'] = new_state
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def imp_statechange(self, button, new_state, opt):
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selected_imp = button.get_label()
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dbg.msg(self.msg_index, 'InstConfigData:imp_statechange({0},{1},{2})'.format(selected_imp, new_state, opt))
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self.msg_index = (self.msg_index - 3) % 2 + 4
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if new_state == True:
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self.opt_dict[opt]['selected_imp'] = selected_imp
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# Contains OptionListWalker dict indexed by option
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# Contains ImpListBox
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# Connects OptionListWalker 'focus_change' signal to update_imp_lb handler
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# Tracks selected implementation for each option
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# and sets selection on ImpListBox
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class InstConfigManager:
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cf_msg_index = 8
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options = []
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imp_lw_dict = {}
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def __init__(self, cfdat):
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self.cfdat = cfdat
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urwid.register_signal(InstConfigManager, ['focus_change'])
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for opt,dict in cfdat.opt_dict.iteritems():
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self.options.append((opt, dict['imptype']))
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# imp_items = []
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# for imp in cfdat.imp_dict[dict['imptype']]:
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# if imp == dict['selected_imp']:
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# imp_items.append((imp, True))
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# else:
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# imp_items.append((imp, False))
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# imp_items.sort()
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# self.imp_lw_dict[opt] = RadioButtonListWalker(imp_items, on_state_change=self.imp_statechange, user_data=opt)
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self.options.sort()
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# imp_items.sort()
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firstopt = self.options[0][0]
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self.imp_lw = self.__gen_imp_listwalker(firstopt)
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# self.imp_lw = RadioButtonListWalker([], on_state_change=self.imp_statechange, user_data=firstopt)
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self.option_lw = OptionListWalker(cfdat.opt_dict, self.opt_statechange)
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self.imp_lb = ImpListBox(self.imp_lw)
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urwid.connect_signal(self.option_lw, 'focus_change', self.update_imp_lb)
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item_states = [(i,d['enabled']) for i,d in cf_dat.configuration_dict.iteritems()]
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item_states.sort()
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self.cfg_lw = RadioButtonListWalker(item_states, on_state_change = self.cf_statechange)
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self.config_lb = OptionListBox(self.cfg_lw)
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self.opt_lb = OptionListBox(self.option_lw)
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self.opt_lb.set_focus(0)
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return
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def __gen_imp_listwalker(self, opt):
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imp_items = []
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dict = self.cfdat.opt_dict[opt]
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for imp in self.cfdat.imp_dict[dict['imptype']]:
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if imp == dict['selected_imp']:
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imp_items.append((imp, True))
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else:
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imp_items.append((imp, False))
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imp_items.sort()
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return RadioButtonListWalker(imp_items, on_state_change=self.imp_statechange, user_data=opt)
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def cf_statechange(self, button, new_state, udat=None):
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self.cfdat.cf_statechange(button, new_state, udat)
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b = button.get_label()
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cascade = self.cfdat.configuration_dict[b]['cascade_list']
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if new_state == True:
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for opt in self.cfdat.opt_dict.keys():
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if self.cfdat.opt_dict[opt]['permanent'] == False:
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self.option_lw.button_dict[opt].set_state(False)
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for opt,imp in cascade:
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self.option_lw.button_dict[opt].set_state(True)
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imp_lw = self.__gen_imp_listwalker(opt)
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imp_lw.button_dict[imp].set_state(True)
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currpos = self.opt_lb.get_focus()[1]
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self.opt_lb.set_focus(currpos)
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dbg.msg(self.cf_msg_index, 'InstConfigManager:cf_statechange({0},{1},{2}), cascade = {3}'.format(b, new_state, udat, cascade))
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self.cf_msg_index = (self.cf_msg_index - 7) % 2 + 8
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return
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def opt_statechange(self, button, new_state, udat=None):
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self.cfdat.opt_statechange(button, new_state, udat)
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return
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def imp_statechange(self, button, new_state, udat=None):
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self.cfdat.imp_statechange(button, new_state, udat)
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return
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def update_imp_lb(self, pos):
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optname = self.options[pos][0]
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optype = self.options[pos][1]
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mstr = 'InstConfigManager:update_imp_lb({0}) -> select {1}'.format(pos, optype)
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dbg.msg(1, mstr)
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self.imp_lw = self.__gen_imp_listwalker(optname)
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self.imp_lb.use_listwalker(self.imp_lw)
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return
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import pdb
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class DEBUG:
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msgTextDict = {}
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msglist = []
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msg_ids = [ 'm0', 'm1', 'm2', 'm3', 'm4', 'm5', 'm6', 'm7', 'm8', 'm9' ]
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def __init__(self, enabled=False):
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self.enabled = enabled
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if enabled:
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for msgID in self.msg_ids:
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msgText = urwid.Text(u'Space for message {0}'.format(msgID))
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self.msgTextDict[msgID] = msgText
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self.msglist.append(urwid.AttrMap(msgText, 'body', 'focus'))
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mlw = urwid.SimpleListWalker(self.msglist)
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self.mlb = urwid.ListBox(mlw)
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return
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def msg(self, index, msg):
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if self.enabled:
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mid = self.msg_ids[index]
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self.msgTextDict[mid].set_text(msg)
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return
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dbg = DEBUG(enabled=True)
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def main(config_ini):
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global cf_dat, cf_man, cf_viewer
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# Make configuration data
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cf_dat = InstConfigData()
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cf_dat.read_config_file(config_ini)
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# Make configuration editor
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cf_man = InstConfigManager(cf_dat)
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# Make configuration viewer
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cf_viewer = InstConfigView(cf_dat, cf_man, dbg.mlb)
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urwid.MainLoop(cf_viewer, Palette, unhandled_input=cf_viewer.keyinput).run()
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return
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if '__main__' == __name__:
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default_ini = "/usr/local/sics/sics_config.ini"
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parser = argparse.ArgumentParser(description = """
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Edit a configuration (*.ini) file using python urwid widget library.
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Options can be enabled or disabled with mouse or spacebar.
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Navigate with arrow keys.
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Press W to save.
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Press Alt-Q to quit.
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The default configuration filename is %s.
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""" % default_ini)
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parser.add_argument("-v", "--verbose", action="store_true", help="give more info in the footer")
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parser.add_argument("path", nargs="?", default = default_ini, help="name of file to edit [%s]" % default_ini)
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args = parser.parse_args()
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default_ini = os.path.abspath(args.path)
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main(default_ini)
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