terminator/terminatorlib/config.py
Matt Rose 86f90337f6
Merge pull request #46 from filipkilibarda/master
Added option to disable ctrl+mousewheel zoom
2020-06-02 22:12:28 -04:00

814 lines
31 KiB
Python

# TerminatorConfig - layered config classes
# Copyright (C) 2006-2010 cmsj@tenshu.net
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 2 only.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
"""Terminator by Chris Jones <cmsj@tenshu.net>
Classes relating to configuration
>>> DEFAULTS['global_config']['focus']
'click'
>>> config = Config()
>>> config['focus'] = 'sloppy'
>>> config['focus']
'sloppy'
>>> DEFAULTS['global_config']['focus']
'click'
>>> config2 = Config()
>>> config2['focus']
'sloppy'
>>> config2['focus'] = 'click'
>>> config2['focus']
'click'
>>> config['focus']
'click'
>>> config['geometry_hinting'].__class__.__name__
'bool'
>>> plugintest = {}
>>> plugintest['foo'] = 'bar'
>>> config.plugin_set_config('testplugin', plugintest)
>>> config.plugin_get_config('testplugin')
{'foo': 'bar'}
>>> config.plugin_get('testplugin', 'foo')
'bar'
>>> config.plugin_get('testplugin', 'foo', 'new')
'bar'
>>> config.plugin_get('testplugin', 'algo')
Traceback (most recent call last):
...
KeyError: 'ConfigBase::get_item: unknown key algo'
>>> config.plugin_get('testplugin', 'algo', 1)
1
>>> config.plugin_get('anothertestplugin', 'algo', 500)
500
>>> config.get_profile()
'default'
>>> config.set_profile('my_first_new_testing_profile')
>>> config.get_profile()
'my_first_new_testing_profile'
>>> config.del_profile('my_first_new_testing_profile')
>>> config.get_profile()
'default'
>>> config.list_profiles().__class__.__name__
'list'
>>> config.options_set({})
>>> config.options_get()
{}
>>>
"""
import os
from copy import copy
from configobj import ConfigObj, flatten_errors
from validate import Validator
from .borg import Borg
from .util import dbg, err, DEBUG, get_config_dir, dict_diff
from gi.repository import Gio
DEFAULTS = {
'global_config': {
'dbus' : True,
'focus' : 'click',
'handle_size' : -1,
'geometry_hinting' : False,
'window_state' : 'normal',
'borderless' : False,
'extra_styling' : True,
'tab_position' : 'top',
'broadcast_default' : 'group',
'close_button_on_tab' : True,
'hide_tabbar' : False,
'scroll_tabbar' : False,
'homogeneous_tabbar' : True,
'hide_from_taskbar' : False,
'always_on_top' : False,
'hide_on_lose_focus' : False,
'sticky' : False,
'use_custom_url_handler': False,
'custom_url_handler' : '',
'disable_real_transparency' : False,
'title_hide_sizetext' : False,
'title_transmit_fg_color' : '#ffffff',
'title_transmit_bg_color' : '#c80003',
'title_receive_fg_color' : '#ffffff',
'title_receive_bg_color' : '#0076c9',
'title_inactive_fg_color' : '#000000',
'title_inactive_bg_color' : '#c0bebf',
'inactive_color_offset': 0.8,
'enabled_plugins' : ['LaunchpadBugURLHandler',
'LaunchpadCodeURLHandler',
'APTURLHandler'],
'suppress_multiple_term_dialog': False,
'always_split_with_profile': False,
'title_use_system_font' : True,
'title_font' : 'Sans 9',
'putty_paste_style' : False,
'smart_copy' : True,
},
'keybindings': {
'zoom_in' : '<Control>plus',
'zoom_out' : '<Control>minus',
'zoom_normal' : '<Control>0',
'new_tab' : '<Shift><Control>t',
'cycle_next' : '<Control>Tab',
'cycle_prev' : '<Shift><Control>Tab',
'go_next' : '<Shift><Control>n',
'go_prev' : '<Shift><Control>p',
'go_up' : '<Alt>Up',
'go_down' : '<Alt>Down',
'go_left' : '<Alt>Left',
'go_right' : '<Alt>Right',
'rotate_cw' : '<Super>r',
'rotate_ccw' : '<Super><Shift>r',
'split_horiz' : '<Shift><Control>o',
'split_vert' : '<Shift><Control>e',
'close_term' : '<Shift><Control>w',
'copy' : '<Shift><Control>c',
'paste' : '<Shift><Control>v',
'toggle_scrollbar' : '<Shift><Control>s',
'search' : '<Shift><Control>f',
'page_up' : '',
'page_down' : '',
'page_up_half' : '',
'page_down_half' : '',
'line_up' : '',
'line_down' : '',
'close_window' : '<Shift><Control>q',
'resize_up' : '<Shift><Control>Up',
'resize_down' : '<Shift><Control>Down',
'resize_left' : '<Shift><Control>Left',
'resize_right' : '<Shift><Control>Right',
'move_tab_right' : '<Shift><Control>Page_Down',
'move_tab_left' : '<Shift><Control>Page_Up',
'toggle_zoom' : '<Shift><Control>x',
'scaled_zoom' : '<Shift><Control>z',
'next_tab' : '<Control>Page_Down',
'prev_tab' : '<Control>Page_Up',
'switch_to_tab_1' : '',
'switch_to_tab_2' : '',
'switch_to_tab_3' : '',
'switch_to_tab_4' : '',
'switch_to_tab_5' : '',
'switch_to_tab_6' : '',
'switch_to_tab_7' : '',
'switch_to_tab_8' : '',
'switch_to_tab_9' : '',
'switch_to_tab_10' : '',
'full_screen' : 'F11',
'reset' : '<Shift><Control>r',
'reset_clear' : '<Shift><Control>g',
'hide_window' : '<Shift><Control><Alt>a',
'group_all' : '<Super>g',
'group_all_toggle' : '',
'ungroup_all' : '<Shift><Super>g',
'group_tab' : '<Super>t',
'group_tab_toggle' : '',
'ungroup_tab' : '<Shift><Super>t',
'new_window' : '<Shift><Control>i',
'new_terminator' : '<Super>i',
'broadcast_off' : '',
'broadcast_group' : '',
'broadcast_all' : '',
'insert_number' : '<Super>1',
'insert_padded' : '<Super>0',
'edit_window_title': '<Control><Alt>w',
'edit_tab_title' : '<Control><Alt>a',
'edit_terminal_title': '<Control><Alt>x',
'layout_launcher' : '<Alt>l',
'next_profile' : '',
'previous_profile' : '',
'help' : 'F1'
},
'profiles': {
'default': {
'allow_bold' : True,
'audible_bell' : False,
'visible_bell' : False,
'urgent_bell' : False,
'icon_bell' : True,
'background_color' : '#000000',
'background_darkness' : 0.5,
'background_type' : 'solid',
'backspace_binding' : 'ascii-del',
'delete_binding' : 'escape-sequence',
'color_scheme' : 'grey_on_black',
'cursor_blink' : True,
'cursor_shape' : 'block',
'cursor_color' : '',
'cursor_color_fg' : True,
'term' : 'xterm-256color',
'colorterm' : 'truecolor',
'font' : 'Mono 10',
'foreground_color' : '#aaaaaa',
'show_titlebar' : True,
'scrollbar_position' : "right",
'scroll_background' : True,
'scroll_on_keystroke' : True,
'scroll_on_output' : False,
'scrollback_lines' : 500,
'scrollback_infinite' : False,
'disable_mousewheel_zoom': False,
'exit_action' : 'close',
'palette' : '#2e3436:#cc0000:#4e9a06:#c4a000:\
#3465a4:#75507b:#06989a:#d3d7cf:#555753:#ef2929:#8ae234:#fce94f:\
#729fcf:#ad7fa8:#34e2e2:#eeeeec',
'word_chars' : '-,./?%&#:_',
'mouse_autohide' : True,
'login_shell' : False,
'use_custom_command' : False,
'custom_command' : '',
'use_system_font' : True,
'use_theme_colors' : False,
'bold_is_bright' : False,
'encoding' : 'UTF-8',
'active_encodings' : ['UTF-8', 'ISO-8859-1'],
'focus_on_close' : 'auto',
'force_no_bell' : False,
'cycle_term_tab' : True,
'copy_on_selection' : False,
'rewrap_on_resize' : True,
'split_to_group' : False,
'autoclean_groups' : True,
'http_proxy' : '',
'ignore_hosts' : ['localhost','127.0.0.0/8','*.local'],
},
},
'layouts': {
'default': {
'window0': {
'type': 'Window',
'parent': ''
},
'child1': {
'type': 'Terminal',
'parent': 'window0'
}
}
},
'plugins': {
},
}
class Config(object):
"""Class to provide a slightly richer config API above ConfigBase"""
base = None
profile = None
system_mono_font = None
system_prop_font = None
system_focus = None
inhibited = None
def __init__(self, profile='default'):
self.base = ConfigBase()
self.set_profile(profile)
self.inhibited = False
self.connect_gsetting_callbacks()
def __getitem__(self, key, default=None):
"""Look up a configuration item"""
return(self.base.get_item(key, self.profile, default=default))
def __setitem__(self, key, value):
"""Set a particular configuration item"""
return(self.base.set_item(key, value, self.profile))
def get_profile(self):
"""Get our profile"""
return(self.profile)
def set_profile(self, profile, force=False):
"""Set our profile (which usually means change it)"""
options = self.options_get()
if not force and options and options.profile and profile == 'default':
dbg('overriding default profile to %s' % options.profile)
profile = options.profile
dbg('Config::set_profile: Changing profile to %s' % profile)
self.profile = profile
if profile not in self.base.profiles:
dbg('Config::set_profile: %s does not exist, creating' % profile)
self.base.profiles[profile] = copy(DEFAULTS['profiles']['default'])
def add_profile(self, profile):
"""Add a new profile"""
return(self.base.add_profile(profile))
def del_profile(self, profile):
"""Delete a profile"""
if profile == self.profile:
# FIXME: We should solve this problem by updating terminals when we
# remove a profile
err('Config::del_profile: Deleting in-use profile %s.' % profile)
self.set_profile('default')
if profile in self.base.profiles:
del(self.base.profiles[profile])
options = self.options_get()
if options and options.profile == profile:
options.profile = None
self.options_set(options)
def rename_profile(self, profile, newname):
"""Rename a profile"""
if profile in self.base.profiles:
self.base.profiles[newname] = self.base.profiles[profile]
del(self.base.profiles[profile])
if profile == self.profile:
self.profile = newname
def list_profiles(self):
"""List all configured profiles"""
return(list(self.base.profiles.keys()))
def add_layout(self, name, layout):
"""Add a new layout"""
return(self.base.add_layout(name, layout))
def replace_layout(self, name, layout):
"""Replace an existing layout"""
return(self.base.replace_layout(name, layout))
def del_layout(self, layout):
"""Delete a layout"""
if layout in self.base.layouts:
del(self.base.layouts[layout])
def rename_layout(self, layout, newname):
"""Rename a layout"""
if layout in self.base.layouts:
self.base.layouts[newname] = self.base.layouts[layout]
del(self.base.layouts[layout])
def list_layouts(self):
"""List all configured layouts"""
return(list(self.base.layouts.keys()))
def connect_gsetting_callbacks(self):
"""Get system settings and create callbacks for changes"""
dbg("GSetting connects for system changes")
# Have to preserve these to self, or callbacks don't happen
self.gsettings_interface=Gio.Settings.new('org.gnome.desktop.interface')
self.gsettings_interface.connect("changed::font-name", self.on_gsettings_change_event)
self.gsettings_interface.connect("changed::monospace-font-name", self.on_gsettings_change_event)
self.gsettings_wm=Gio.Settings.new('org.gnome.desktop.wm.preferences')
self.gsettings_wm.connect("changed::focus-mode", self.on_gsettings_change_event)
def get_system_prop_font(self):
"""Look up the system font"""
if self.system_prop_font is not None:
return(self.system_prop_font)
elif 'org.gnome.desktop.interface' not in Gio.Settings.list_schemas():
return
else:
gsettings=Gio.Settings.new('org.gnome.desktop.interface')
value = gsettings.get_value('font-name')
if value:
self.system_prop_font = value.get_string()
else:
self.system_prop_font = "Sans 10"
return(self.system_prop_font)
def get_system_mono_font(self):
"""Look up the system font"""
if self.system_mono_font is not None:
return(self.system_mono_font)
elif 'org.gnome.desktop.interface' not in Gio.Settings.list_schemas():
return
else:
gsettings=Gio.Settings.new('org.gnome.desktop.interface')
value = gsettings.get_value('monospace-font-name')
if value:
self.system_mono_font = value.get_string()
else:
self.system_mono_font = "Mono 10"
return(self.system_mono_font)
def get_system_focus(self):
"""Look up the system focus setting"""
if self.system_focus is not None:
return(self.system_focus)
elif 'org.gnome.desktop.interface' not in Gio.Settings.list_schemas():
return
else:
gsettings=Gio.Settings.new('org.gnome.desktop.wm.preferences')
value = gsettings.get_value('focus-mode')
if value:
self.system_focus = value.get_string()
return(self.system_focus)
def on_gsettings_change_event(self, settings, key):
"""Handle a gsetting change event"""
dbg('GSetting change event received. Invalidating caches')
self.system_focus = None
self.system_font = None
self.system_mono_font = None
# Need to trigger a reconfigure to change active terminals immediately
if "Terminator" not in globals():
from .terminator import Terminator
Terminator().reconfigure()
def save(self):
"""Cause ConfigBase to save our config to file"""
if self.inhibited is True:
return(True)
else:
return(self.base.save())
def inhibit_save(self):
"""Prevent calls to save() being honoured"""
self.inhibited = True
def uninhibit_save(self):
"""Allow calls to save() to be honoured"""
self.inhibited = False
def options_set(self, options):
"""Set the command line options"""
self.base.command_line_options = options
def options_get(self):
"""Get the command line options"""
return(self.base.command_line_options)
def plugin_get(self, pluginname, key, default=None):
"""Get a plugin config value, if doesn't exist
return default if specified
"""
return(self.base.get_item(key, plugin=pluginname, default=default))
def plugin_set(self, pluginname, key, value):
"""Set a plugin config value"""
return(self.base.set_item(key, value, plugin=pluginname))
def plugin_get_config(self, plugin):
"""Return a whole config tree for a given plugin"""
return(self.base.get_plugin(plugin))
def plugin_set_config(self, plugin, tree):
"""Set a whole config tree for a given plugin"""
return(self.base.set_plugin(plugin, tree))
def plugin_del_config(self, plugin):
"""Delete a whole config tree for a given plugin"""
return(self.base.del_plugin(plugin))
def layout_get_config(self, layout):
"""Return a layout"""
return(self.base.get_layout(layout))
def layout_set_config(self, layout, tree):
"""Set a layout"""
return(self.base.set_layout(layout, tree))
class ConfigBase(Borg):
"""Class to provide access to our user configuration"""
loaded = None
whined = None
sections = None
global_config = None
profiles = None
keybindings = None
plugins = None
layouts = None
command_line_options = None
def __init__(self):
"""Class initialiser"""
Borg.__init__(self, self.__class__.__name__)
self.prepare_attributes()
from . import optionparse
self.command_line_options = optionparse.options
self.load()
def prepare_attributes(self):
"""Set up our borg environment"""
if self.loaded is None:
self.loaded = False
if self.whined is None:
self.whined = False
if self.sections is None:
self.sections = ['global_config', 'keybindings', 'profiles',
'layouts', 'plugins']
if self.global_config is None:
self.global_config = copy(DEFAULTS['global_config'])
if self.profiles is None:
self.profiles = {}
self.profiles['default'] = copy(DEFAULTS['profiles']['default'])
if self.keybindings is None:
self.keybindings = copy(DEFAULTS['keybindings'])
if self.plugins is None:
self.plugins = {}
if self.layouts is None:
self.layouts = {}
for layout in DEFAULTS['layouts']:
self.layouts[layout] = copy(DEFAULTS['layouts'][layout])
def defaults_to_configspec(self):
"""Convert our tree of default values into a ConfigObj validation
specification"""
configspecdata = {}
keymap = {
'int': 'integer',
'str': 'string',
'bool': 'boolean',
}
section = {}
for key in DEFAULTS['global_config']:
keytype = DEFAULTS['global_config'][key].__class__.__name__
value = DEFAULTS['global_config'][key]
if keytype in keymap:
keytype = keymap[keytype]
elif keytype == 'list':
value = 'list(%s)' % ','.join(value)
keytype = '%s(default=%s)' % (keytype, value)
if key == 'custom_url_handler':
keytype = 'string(default="")'
section[key] = keytype
configspecdata['global_config'] = section
section = {}
for key in DEFAULTS['keybindings']:
value = DEFAULTS['keybindings'][key]
if value is None or value == '':
continue
section[key] = 'string(default=%s)' % value
configspecdata['keybindings'] = section
section = {}
for key in DEFAULTS['profiles']['default']:
keytype = DEFAULTS['profiles']['default'][key].__class__.__name__
value = DEFAULTS['profiles']['default'][key]
if keytype in keymap:
keytype = keymap[keytype]
elif keytype == 'list':
value = 'list(%s)' % ','.join(value)
if keytype == 'string':
value = '"%s"' % value
keytype = '%s(default=%s)' % (keytype, value)
section[key] = keytype
configspecdata['profiles'] = {}
configspecdata['profiles']['__many__'] = section
section = {}
section['type'] = 'string'
section['parent'] = 'string'
section['profile'] = 'string(default=default)'
section['command'] = 'string(default="")'
section['position'] = 'string(default="")'
section['size'] = 'list(default=list(-1,-1))'
configspecdata['layouts'] = {}
configspecdata['layouts']['__many__'] = {}
configspecdata['layouts']['__many__']['__many__'] = section
configspecdata['plugins'] = {}
configspec = ConfigObj(configspecdata)
if DEBUG == True:
configspec.write(open('/tmp/terminator_configspec_debug.txt', 'wb'))
return(configspec)
def load(self):
"""Load configuration data from our various sources"""
if self.loaded is True:
dbg('ConfigBase::load: config already loaded')
return
if self.command_line_options:
if not self.command_line_options.config:
self.command_line_options.config = os.path.join(get_config_dir(), 'config')
filename = self.command_line_options.config
else:
filename = os.path.join(get_config_dir(), 'config')
dbg('looking for config file: %s' % filename)
try:
configfile = open(filename, 'r')
except Exception as ex:
if not self.whined:
err('ConfigBase::load: Unable to open %s (%s)' % (filename, ex))
self.whined = True
return
# If we have successfully loaded a config, allow future whining
self.whined = False
try:
configspec = self.defaults_to_configspec()
parser = ConfigObj(configfile, configspec=configspec)
validator = Validator()
result = parser.validate(validator, preserve_errors=True)
except Exception as ex:
err('Unable to load configuration: %s' % ex)
return
if result != True:
err('ConfigBase::load: config format is not valid')
for (section_list, key, _other) in flatten_errors(parser, result):
if key is not None:
err('[%s]: %s is invalid' % (','.join(section_list), key))
else:
err('[%s] missing' % ','.join(section_list))
else:
dbg('config validated successfully')
for section_name in self.sections:
dbg('ConfigBase::load: Processing section: %s' % section_name)
section = getattr(self, section_name)
if section_name == 'profiles':
for profile in parser[section_name]:
dbg('ConfigBase::load: Processing profile: %s' % profile)
if section_name not in section:
# FIXME: Should this be outside the loop?
section[profile] = copy(DEFAULTS['profiles']['default'])
section[profile].update(parser[section_name][profile])
elif section_name == 'plugins':
if section_name not in parser:
continue
for part in parser[section_name]:
dbg('ConfigBase::load: Processing %s: %s' % (section_name,
part))
section[part] = parser[section_name][part]
elif section_name == 'layouts':
for layout in parser[section_name]:
dbg('ConfigBase::load: Processing %s: %s' % (section_name,
layout))
if layout == 'default' and \
parser[section_name][layout] == {}:
continue
section[layout] = parser[section_name][layout]
elif section_name == 'keybindings':
if section_name not in parser:
continue
for part in parser[section_name]:
dbg('ConfigBase::load: Processing %s: %s' % (section_name,
part))
if parser[section_name][part] == 'None':
section[part] = None
else:
section[part] = parser[section_name][part]
else:
try:
section.update(parser[section_name])
except KeyError as ex:
dbg('ConfigBase::load: skipping missing section %s' %
section_name)
self.loaded = True
def reload(self):
"""Force a reload of the base config"""
self.loaded = False
self.load()
def save(self):
"""Save the config to a file"""
dbg('ConfigBase::save: saving config')
parser = ConfigObj(encoding='utf-8')
parser.indent_type = ' '
for section_name in ['global_config', 'keybindings']:
dbg('ConfigBase::save: Processing section: %s' % section_name)
section = getattr(self, section_name)
parser[section_name] = dict_diff(DEFAULTS[section_name], section)
parser['profiles'] = {}
for profile in self.profiles:
dbg('ConfigBase::save: Processing profile: %s' % profile)
parser['profiles'][profile] = dict_diff(
DEFAULTS['profiles']['default'], self.profiles[profile])
parser['layouts'] = {}
for layout in self.layouts:
dbg('ConfigBase::save: Processing layout: %s' % layout)
parser['layouts'][layout] = self.layouts[layout]
parser['plugins'] = {}
for plugin in self.plugins:
dbg('ConfigBase::save: Processing plugin: %s' % plugin)
parser['plugins'][plugin] = self.plugins[plugin]
config_dir = get_config_dir()
if not os.path.isdir(config_dir):
os.makedirs(config_dir)
try:
temp_file = self.command_line_options.config + '.tmp'
with open(temp_file, 'wb') as fh:
parser.write(fh)
os.rename(temp_file, self.command_line_options.config)
except Exception as ex:
err('ConfigBase::save: Unable to save config: %s' % ex)
def get_item(self, key, profile='default', plugin=None, default=None):
"""Look up a configuration item"""
if profile not in self.profiles:
# Hitting this generally implies a bug
profile = 'default'
if key in self.global_config:
dbg('ConfigBase::get_item: %s found in globals: %s' %
(key, self.global_config[key]))
return(self.global_config[key])
elif key in self.profiles[profile]:
dbg('ConfigBase::get_item: %s found in profile %s: %s' % (
key, profile, self.profiles[profile][key]))
return(self.profiles[profile][key])
elif key == 'keybindings':
return(self.keybindings)
elif plugin and plugin in self.plugins and key in self.plugins[plugin]:
dbg('ConfigBase::get_item: %s found in plugin %s: %s' % (
key, plugin, self.plugins[plugin][key]))
return(self.plugins[plugin][key])
elif default:
return default
else:
raise KeyError('ConfigBase::get_item: unknown key %s' % key)
def set_item(self, key, value, profile='default', plugin=None):
"""Set a configuration item"""
dbg('ConfigBase::set_item: Setting %s=%s (profile=%s, plugin=%s)' %
(key, value, profile, plugin))
if key in self.global_config:
self.global_config[key] = value
elif key in self.profiles[profile]:
self.profiles[profile][key] = value
elif key == 'keybindings':
self.keybindings = value
elif plugin is not None:
if plugin not in self.plugins:
self.plugins[plugin] = {}
self.plugins[plugin][key] = value
else:
raise KeyError('ConfigBase::set_item: unknown key %s' % key)
return(True)
def get_plugin(self, plugin):
"""Return a whole tree for a plugin"""
if plugin in self.plugins:
return(self.plugins[plugin])
def set_plugin(self, plugin, tree):
"""Set a whole tree for a plugin"""
self.plugins[plugin] = tree
def del_plugin(self, plugin):
"""Delete a whole tree for a plugin"""
if plugin in self.plugins:
del self.plugins[plugin]
def add_profile(self, profile):
"""Add a new profile"""
if profile in self.profiles:
return(False)
self.profiles[profile] = copy(DEFAULTS['profiles']['default'])
return(True)
def add_layout(self, name, layout):
"""Add a new layout"""
if name in self.layouts:
return(False)
self.layouts[name] = layout
return(True)
def replace_layout(self, name, layout):
"""Replaces a layout with the given name"""
if not name in self.layouts:
return(False)
self.layouts[name] = layout
return(True)
def get_layout(self, layout):
"""Return a layout"""
if layout in self.layouts:
return(self.layouts[layout])
else:
err('layout does not exist: %s' % layout)
def set_layout(self, layout, tree):
"""Set a layout"""
self.layouts[layout] = tree