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# timing.py -- Sylvain Fourmanoit <syfou@users.sourceforge.net>, 2006
#
# Long-running timing tests for the adesklets interpreter; see:
#
# python timing.py --help
#
# for details on how to use it; it was made to be used in conjuction with the
# adesklets interpreter session trace facility (see "General tips for
# programmers" from the "Programming adesklets" chapter of the manual).
#
# Basically, it renders by default a very simple color-changing dot on
# a translucent grey background on a two seconds (1/2 Hz) refresh period.
#
#-------------------------------------------------------------------------------
# Initialize adesklets, but override the normal registration mecanism... If
# *ever* you see anyone but me pulling such nasty tricks, remind me never to use
# his code...
#
from os import environ
import os, sys, time, logging, random
myargv = sys.argv; sys.argv = ['']
os.environ['ADESKLETS_ID'] = '0'
import adesklets
#-------------------------------------------------------------------------------
# Parse the command line
#
from optparse import OptionParser
config = OptionParser()
config.add_option('-i', '--interactive',
help='make the desklet graphically reacts to user ' +
'click (default is not to: if set, it implies ' +
'listening to ButtonPress events)',
dest='interactivity', action='store_true', default=False)
config.add_option('-d', '--dontdraw',
help='force the desklet never to update its window after ' +
'the initial draw (default is to draw at given frequency: ' +
'it *does not* imply -f 0)',
dest='drawability', action='store_false', default=True)
config.add_option('-e', '--events',
help='list of events the desklet listen to and report ' +
'(comma separated list of events in BackgroundGrab, ' +
'ButtonRelease, LeaveNotify, MotionNotify, ButtonPress, ' +
'EnterNotify and MenuFire -- default is to be completely '
'deaf and mute)',
default='')
config.add_option('-f', '--frequency',
help='fixed frequency (in hertz) at which the desklet ' +
'should react: reacting consists in updating the window ' +
'content (whenever --dontdraw is not set), and logging ' +
'it (default value is .5 Hz: a value of 0 will mean an ' +
'infinite period, thus no reaction ever)',
default='.5')
config.add_option('-o', '--output',
help='output log file (default is to output only on stderr)',
default='')
config.add_option('-g', '--geometry',
help='window geometry (default is 100x100)',
default='100x100')
opts, args = config.parse_args(myargv)
# Good, standard good pythonic code do not perform the kind of tests that
# follow: it let the code dies with an exception trace
#
# Check events
#
opts.events = [event.strip() for event in opts.events.split(',')
if len(event.strip())>0]
for event in opts.events:
if not event in ('ButtonRelease', 'LeaveNotify', 'MotionNotify',
'BackgroundGrab', 'ButtonPress', 'EnterNotify', 'MenuFire'):
config.error('invalid event "%s" ' % event)
# Check frequency
#
try:
opts.frequency = float(opts.frequency)
if opts.frequency < 0:
raise ValueError
elif opts.frequency > 0:
opts.period = 1 / opts.frequency
else:
opts.period = 0
except ValueError:
config.error('invalid frequency "%s" ' % opts.frequency)
# Check geometry
#
try:
opts.w, opts.h = [int(i) for i in opts.geometry.split('x')]
if opts.w <= 0 or opts.h <= 0: raise
except:
config.error('invalid geometry "%s" ' % opts.geometry)
#-------------------------------------------------------------------------------
class Events(adesklets.Events_handler):
"""Events handler"""
class adeskletsHandler(logging.Handler):
"""adesklets logging handler"""
def emit(self, record):
adesklets.echo(self.format(record))
class EventHandler:
"""Generic logging event handler"""
def __init__(self, logger, name):
self.logger = logger
self.name = name
def __call__(self, *args):
self.logger.info('%s %s' % (self.name, args[1:]))
def __init__(self, opts):
self.opts = opts
adesklets.Events_handler.__init__(self)
def ready(self):
# Setup the logging infrastructure
#
format = '%(asctime)s - %(message)s'
logging.basicConfig(format=format,
level=logging.DEBUG)
self.logger = logging.getLogger()
hdlrs = []
hdlrs.append(self.adeskletsHandler())
if len(self.opts.output) > 0:
hdlrs.append(logging.FileHandler(opts.output))
for hdlr in hdlrs:
hdlr.setFormatter(logging.Formatter(format))
hdlr.setLevel(logging.DEBUG)
self.logger.addHandler(hdlr)
# Dynamically create events handlers
#
for event in self.opts.events:
self.__dict__[event] = self.EventHandler(self.logger, event)
events_list = dict(self.get_events().items() + \
[(event, self.__dict__[event])
for event in self.opts.events])
# Special case: button handler in case of interactivity
#
if self.opts.interactivity:
events_list['ButtonPress'] = Events.buttonpress_highlevel
# Register them
#
self.set_events(events_list)
# Initialize the window
#
adesklets.window_reset(adesklets.WINDOW_MANAGED)
adesklets.window_resize(self.opts.w, self.opts.h)
adesklets.window_set_transparency(True)
adesklets.context_set_blend(False)
adesklets.context_set_color(100, 100, 100, 100)
adesklets.image_fill_rectangle(0, 0, self.opts.w, self.opts.h)
# Set the current dot position and radius
#
self.x = self.opts.w / 2
self.y = self.opts.h / 2
self.r = min(self.opts.w, self.opts.h) / 10
# Show the window, and notify that initialization is done
#
adesklets.window_show()
self.logger.info('desklet initialized!')
self.logger.debug('parameters: %s' % ' '.join(myargv))
def buttonpress_highlevel(self, delayed, x, y, button):
"""High level button press handler"""
if button == 1:
self.x = x; self.y = y
self.display()
if hasattr(self, 'ButtonPress'):
self.ButtonPress(delayed, x, y, button)
def display(self):
adesklets.context_set_color(
*([random.randint(100, 255) for i in xrange(3)] + [200]))
adesklets.image_fill_ellipse(self.x, self.y, self.r, self.r)
def quit(self):
self.logger.info('quitting')
def pause(self):
"""Custom pause method to support sub-second alarm events"""
if opts.period > 0:
t0 = time.time()
tic = 0
while True:
try:
while time.time() - t0 < tic * self.opts.period:
time.sleep(t0 + (self.opts.period * tic) - time.time())
except IOError: pass
self.block()
self.logger.info('tic %d' % tic)
tic_check = int((time.time() - t0) / self.opts.period)
if tic_check - tic > 1:
self.logger.info('skipping %d tic' % (tic_check - tic - 1))
tic = tic_check
else:
tic += 1
if self.opts.drawability:
self.display()
self.unblock()
else:
adesklets.Events_handler.pause(self)
#-------------------------------------------------------------------------------
# Start everything, but suppress the exception trace for normal (well, in this
# context) adesklets interpreter exit.
try:
Events(opts).pause()
except adesklets.error_handler.ADESKLETSError, e:
if not e.args[0] == 1:
raise
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