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'''
Configuration object
====================
:class:`Config` object is an instance of a modified Python ConfigParser.
See `ConfigParser documentation
<http://docs.python.org/library/configparser.html>`_ for more information.
Usage of Config object
----------------------
Read a configuration token from a particular section::
>>> from kivy.config import Config
>>> Config.getint('kivy', 'show_fps')
0
Change the configuration and save it::
>>> Config.set('kivy', 'retain_time', 50)
>>> Config.write()
Available configuration tokens
------------------------------
:kivy:
`log_level`: (debug, info, warning, error, critical)
Set the minimum log level to use
`log_dir`: string
Path of log directory
`log_name`: string
Format string to use for the filename of log file
`log_enable`: (0, 1)
Activate file logging
`keyboard_mode`: ('', 'system', 'dock', 'multi')
Keyboard mode to use. If empty, Kivy will decide for you what is the
best for your current platform. Otherwise, you can set one of 'system'
(real keyboard), 'dock' (one virtual keyboard docked in a screen side),
'multi' (one virtual keyboard everytime a widget ask for.)
`keyboard_layout`: string
Identifier of the layout to use
:postproc:
`double_tap_time`: int
Time allowed for the detection of double tap, in milliseconds
`double_tap_distance`: float
Maximum distance allowed for a double tap, normalized inside the range
0 - 1000
`retain_time`: int
Time allowed for a retain touch, in milliseconds
`retain_distance`: int
If the touch moves more than is indicated by retain_distance, it will
not be retained. Argument should be an int between 0 and 1000.
`jitter_distance`: int
Maximum distance for jitter detection, normalized inside the range 0
- 1000
`jitter_ignore_devices`: string, seperated with comma
List of devices to ignore from jitter detection
`ignore`: list of tuples
List of regions where new touches are ignored.
This configuration token can be used to resolve hotspot problems
with DIY hardware. The format of the list must be::
ignore = [(xmin, ymin, xmax, ymax), ...]
All the values must be inside 0 - 1 range.
:graphics:
`maxfps`: int, default to 60
Maximum FPS allowed.
`fullscreen`: (0, 1, fake, auto)
Activate fullscreen. If set to `1`, a resolution of `width`
times `height` pixels will be used.
If set to `auto`, your current display's resolution will be
used instead. This is most likely what you want.
If you want to place the window in another display,
use `fake` and adjust `width`, `height`, `top` and `left`.
`width`: int
Width of the :class:`~kivy.core.window.Window`, not used if in `auto
fullscreen`
`height`: int
Height of the :class:`~kivy.core.window.Window`, not used if in `auto
fullscreen`
`fbo`: (hardware, software, force-hardware)
Select the FBO backend to use.
`show_cursor`: (0, 1)
Show the cursor on the screen
`position`: (auto, custom)
Position of the window on your display. If `auto` is used, you have no
control of the initial position: `top` and `left` are ignored.
`top`: int
Top position of the :class:`~kivy.core.window.Window`
`left`: int
Left position of the :class:`~kivy.core.window.Window`
`window_icon`: string
Path of the window icon. Use this if you want to replace the default
pygame icon.
`rotation`: (0, 90, 180, 270)
Rotation of the :class:`~kivy.core.window.Window`
`resizable`: (0, 1)
If 0, the window will have a fixed size. If 1, the window will be
resizable.
:input:
Input section is particular. You can create new input device with this
syntax::
# example of input provider instance
yourid = providerid,parameters
# example for tuio provider
default = tuio,127.0.0.1:3333
mytable = tuio,192.168.0.1:3334
.. seealso::
Check all the providers in kivy.input.providers for the syntax to use
inside the configuration file.
:widgets:
`scroll_distance`: int
Default value of :data:`~kivy.uix.scrollview.Scrollview.scroll_distance`
property in :class:`~kivy.uix.scrollview.Scrollview` widget.
Check the widget documentation for more information.
`scroll_friction`: float
Default value of :data:`~kivy.uix.scrollview.Scrollview.scroll_friction`
property in :class:`~kivy.uix.scrollview.Scrollview` widget.
Check the widget documentation for more information.
`scroll_timeout`: int
Default value of :data:`~kivy.uix.scrollview.Scrollview.scroll_timeout`
property in :class:`~kivy.uix.scrollview.Scrollview` widget.
Check the widget documentation for more information.
:modules:
You can activate modules with this syntax::
modulename =
Anything after the = will be passed to the module as arguments.
Check the specific module's documentation for a list of accepted arguments.
.. versionchanged:: 1.2.0
`resizable` has been added to graphics section
.. versionchanged:: 1.1.0
tuio is not listening by default anymore. windows icons are not copied to
user directory anymore. You can still set a new window icon by using
``window_icon`` config setting.
.. versionchanged:: 1.0.8
`scroll_timeout`, `scroll_distance` and `scroll_friction` have been added.
`list_friction`, `list_trigger_distance` and `list_friction_bound` have been
removed. `keyboard_type` and `keyboard_layout` have been removed from
widget. `keyboard_mode` and `keyboard_layout` have been added to kivy
section.
'''
__all__ = ('Config', 'ConfigParser')
from ConfigParser import ConfigParser as PythonConfigParser
from sys import platform
from os import environ
from os.path import exists
from kivy import kivy_config_fn
from kivy.logger import Logger, logger_config_update
from kivy.utils import OrderedDict
# Version number of current configuration format
KIVY_CONFIG_VERSION = 6
#: Kivy configuration object
Config = None
class ConfigParser(PythonConfigParser):
'''Enhanced ConfigParser class, that supports addition of default
sections and default values.
.. versionadded:: 1.0.7
'''
def __init__(self):
PythonConfigParser.__init__(self)
self._sections = OrderedDict()
self.filename = None
self._callbacks = []
def add_callback(self, callback, section=None, key=None):
'''Add a callback to be called when a specific section/key changed. If
you don't specify a section or a key, it will call the callback for all
section/keys.
Callbacks will receive 3 arguments: the section, key and value.
.. versionadded:: 1.4.1
'''
if section is None and key is not None:
raise Exception('You cannot specify a key without a section')
self._callbacks.append((callback, section, key))
def _do_callbacks(self, section, key, value):
for callback, csection, ckey in self._callbacks:
if csection is not None and csection != section:
continue
elif ckey is not None and ckey != key:
continue
callback(section, key, value)
def read(self, filename):
'''Read only one filename. In contrast to the original ConfigParser of
Python, this one is able to read only one file at a time. The latest
read file will be used for the :meth:`write` method.
'''
if type(filename) not in (str, unicode):
raise Exception('Only one filename is accepted (str or unicode)')
self.filename = filename
PythonConfigParser.read(self, filename)
def set(self, section, option, value):
'''Functions similarly to PythonConfigParser's set method, except that
the value is implicitly converted to a string.
'''
ret = PythonConfigParser.set(self, section, option, str(value))
self._do_callbacks(section, option, str(value))
return ret
def setdefaults(self, section, keyvalues):
'''Set a lot of keys/values in one section at the same time
'''
self.adddefaultsection(section)
for key, value in keyvalues.iteritems():
self.setdefault(section, key, value)
def setdefault(self, section, option, value):
'''Set the default value of a particular option
'''
if self.has_option(section, option):
return
self.set(section, option, value)
def getdefault(self, section, option, defaultvalue):
'''Get an option. If not found, it will return the default value
'''
if not self.has_section(section):
return defaultvalue
if not self.has_option(section, option):
return defaultvalue
return self.getint(section, option)
def adddefaultsection(self, section):
'''Add a section if the section is missing.
'''
if self.has_section(section):
return
self.add_section(section)
def write(self):
'''Write the configuration to the latest file opened with :meth:`read`
method.
Return True if the write finished successfully.
'''
if self.filename is None:
return False
try:
with open(self.filename, 'w') as fd:
PythonConfigParser.write(self, fd)
except IOError:
Logger.exception('Unable to write the config <%s>' % self.filename)
return False
return True
if not environ.get('KIVY_DOC_INCLUDE'):
#
# Read, analyse configuration file
# Support upgrade of older config file versions
#
# Create default configuration
Config = ConfigParser()
Config.add_callback(logger_config_update, 'kivy', 'log_level')
# Read config file if exist
if exists(kivy_config_fn) and \
'KIVY_USE_DEFAULTCONFIG' not in environ and \
'KIVY_NO_CONFIG' not in environ:
try:
Config.read(kivy_config_fn)
except Exception, e:
Logger.exception('Core: error while reading local'
'configuration')
version = Config.getdefault('kivy', 'config_version', 0)
# Add defaults section
Config.adddefaultsection('kivy')
Config.adddefaultsection('graphics')
Config.adddefaultsection('input')
Config.adddefaultsection('postproc')
Config.adddefaultsection('widgets')
Config.adddefaultsection('modules')
# Upgrade default configuration until we have the current version
need_save = False
if version != KIVY_CONFIG_VERSION and 'KIVY_NO_CONFIG' not in environ:
Logger.warning('Config: Older configuration version detected'
' (%d instead of %d)' % (
version, KIVY_CONFIG_VERSION))
Logger.warning('Config: Upgrading configuration in progress.')
need_save = True
while version < KIVY_CONFIG_VERSION:
Logger.debug('Config: Upgrading from %d to %d' % (version, version + 1))
if version == 0:
# log level
Config.setdefault('kivy', 'keyboard_repeat_delay', '300')
Config.setdefault('kivy', 'keyboard_repeat_rate', '30')
Config.setdefault('kivy', 'log_dir', 'logs')
Config.setdefault('kivy', 'log_enable', '1')
Config.setdefault('kivy', 'log_level', 'info')
Config.setdefault('kivy', 'log_name', 'kivy_%y-%m-%d_%_.txt')
Config.setdefault('kivy', 'window_icon', '')
# default graphics parameters
Config.setdefault('graphics', 'display', '-1')
Config.setdefault('graphics', 'fullscreen', 'no')
Config.setdefault('graphics', 'height', '600')
Config.setdefault('graphics', 'left', '0')
Config.setdefault('graphics', 'maxfps', '0')
Config.setdefault('graphics', 'multisamples', '2')
Config.setdefault('graphics', 'position', 'auto')
Config.setdefault('graphics', 'rotation', '0')
Config.setdefault('graphics', 'show_cursor', '1')
Config.setdefault('graphics', 'top', '0')
Config.setdefault('graphics', 'vsync', '1')
Config.setdefault('graphics', 'width', '800')
# input configuration
Config.setdefault('input', 'mouse', 'mouse')
# activate native input provider in configuration
# from 1.0.9, don't activate mactouch by default, or app are
# unusable.
if platform == 'win32':
Config.setdefault('input', 'wm_touch', 'wm_touch')
Config.setdefault('input', 'wm_pen', 'wm_pen')
elif platform == 'linux2':
Config.setdefault('input', '%(name)s', 'probesysfs')
# input postprocessing configuration
Config.setdefault('postproc', 'double_tap_distance', '20')
Config.setdefault('postproc', 'double_tap_time', '250')
Config.setdefault('postproc', 'ignore', '[]')
Config.setdefault('postproc', 'jitter_distance', '0')
Config.setdefault('postproc', 'jitter_ignore_devices',
'mouse,mactouch,')
Config.setdefault('postproc', 'retain_distance', '50')
Config.setdefault('postproc', 'retain_time', '0')
# default configuration for keyboard repeatition
Config.setdefault('widgets', 'keyboard_layout', 'qwerty')
Config.setdefault('widgets', 'keyboard_type', '')
Config.setdefault('widgets', 'list_friction', '10')
Config.setdefault('widgets', 'list_friction_bound', '20')
Config.setdefault('widgets', 'list_trigger_distance', '5')
elif version == 1:
Config.remove_option('graphics', 'vsync')
Config.set('graphics', 'maxfps', '60')
elif version == 2:
# was a version to automatically copy windows icon in the user
# directory, but it's now not used anymore. User can still change
# the window icon by touching the config.
pass
elif version == 3:
# add token for scrollview
Config.setdefault('widgets', 'scroll_timeout', '250')
Config.setdefault('widgets', 'scroll_distance', '20')
Config.setdefault('widgets', 'scroll_friction', '1.')
# remove old list_* token
Config.remove_option('widgets', 'list_friction')
Config.remove_option('widgets', 'list_friction_bound')
Config.remove_option('widgets', 'list_trigger_distance')
elif version == 4:
Config.remove_option('widgets', 'keyboard_type')
Config.remove_option('widgets', 'keyboard_layout')
# add keyboard token
Config.setdefault('kivy', 'keyboard_mode', '')
Config.setdefault('kivy', 'keyboard_layout', 'qwerty')
elif version == 5:
Config.setdefault('graphics', 'resizable', '1')
#elif version == 1:
# # add here the command for upgrading from configuration 0 to 1
#
else:
# for future.
break
# Pass to the next version
version += 1
# Indicate to the Config that we've upgrade to the latest version.
Config.set('kivy', 'config_version', KIVY_CONFIG_VERSION)
# Now, activate log file
if Config.getint('kivy', 'log_enable'):
Logger.logfile_activated = True
# If no configuration exist, write the default one.
if (not exists(kivy_config_fn) or need_save) and \
'KIVY_NO_CONFIG' not in environ:
try:
Config.filename = kivy_config_fn
Config.write()
except Exception, e:
Logger.exception('Core: Error while saving default config file')
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