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# -*- coding: utf8 -*-
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
# --------------------------------------------------------------------------
# Blender 2.5 Extensions Framework
# --------------------------------------------------------------------------
#
# Authors:
# Doug Hammond
#
# 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; either version 2
# of the License, or (at your option) any later version.
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
# ***** END GPL LICENCE BLOCK *****
#
import datetime, os, configparser, threading, tempfile
import bpy
config_paths = bpy.utils.script_paths()
'''
This path is set at the start of export, so that
calls to path_relative_to_export() can make all
exported paths relative to this one
'''
export_path = '';
def path_relative_to_export(p):
'''
Return a path that is relative to the export path
'''
global export_path
p = filesystem_path(p)
try:
relp = os.path.relpath(p, os.path.dirname(export_path))
except ValueError: # path on different drive on windows
relp = p
#print('Resolving rel path %s -> %s' % (p, relp))
return relp.replace('\\', '/')
def filesystem_path(p):
'''
Resolve a relative Blender path to a real filesystem path
'''
if p.startswith('//'):
pout = bpy.path.abspath(p)
else:
pout = os.path.realpath(p)
#print('Resolving FS path %s -> %s' % (p,pout))
return pout.replace('\\', '/')
# TODO: - somehow specify TYPES to get/set from config
def find_config_value(module, section, key, default):
global config_paths
fc = []
for p in config_paths:
if os.path.exists(p) and os.path.isdir(p) and os.access(p, os.W_OK):
fc.append( '/'.join([p, '%s.cfg' % module]))
if len(fc) < 1:
print('Cannot find %s config file path' % module)
return default
cp = configparser.SafeConfigParser()
cfg_files = cp.read(fc)
if len(cfg_files) > 0:
try:
val = cp.get(section, key)
if val == 'true':
return True
elif val == 'false':
return False
else:
return val
except:
return default
else:
return default
def write_config_value(module, section, key, value):
global config_paths
fc = []
for p in config_paths:
if os.path.exists(p) and os.path.isdir(p) and os.access(p, os.W_OK):
fc.append( '/'.join([p, '%s.cfg' % module]))
if len(fc) < 1:
raise Exception('Cannot find a writable path to store %s config file' % module)
cp = configparser.SafeConfigParser()
cfg_files = cp.read(fc)
if not cp.has_section(section):
cp.add_section(section)
if value == True:
cp.set(section, key, 'true')
elif value == False:
cp.set(section, key, 'false')
else:
cp.set(section, key, value)
if len(cfg_files) < 1:
cfg_files = fc
fh=open(cfg_files[0],'w')
cp.write(fh)
fh.close()
return True
def scene_filename():
'''
Construct a safe scene filename
'''
filename = os.path.splitext(os.path.basename(bpy.data.filepath))[0]
if filename == '':
filename = 'untitled'
return bpy.path.clean_name(filename)
def temp_directory():
'''
Return the system temp directory
'''
return tempfile.gettempdir()
def temp_file(ext='tmp'):
'''
Get a temporary filename with the given extension
'''
tf, fn = tempfile.mkstemp(suffix='.%s'%ext)
os.close(tf)
return fn
class TimerThread(threading.Thread):
'''
Periodically call self.kick()
'''
STARTUP_DELAY = 0
KICK_PERIOD = 8
active = True
timer = None
LocalStorage = None
def __init__(self, LocalStorage=dict()):
threading.Thread.__init__(self)
self.LocalStorage = LocalStorage
def set_kick_period(self, period):
self.KICK_PERIOD = period + self.STARTUP_DELAY
def stop(self):
self.active = False
if self.timer is not None:
self.timer.cancel()
def run(self):
'''
Timed Thread loop
'''
while self.active:
self.timer = threading.Timer(self.KICK_PERIOD, self.kick_caller)
self.timer.start()
if self.timer.isAlive(): self.timer.join()
def kick_caller(self):
if self.STARTUP_DELAY > 0:
self.KICK_PERIOD -= self.STARTUP_DELAY
self.STARTUP_DELAY = 0
self.kick()
def kick(self):
'''
sub-classes do their work here
'''
pass
def format_elapsed_time(t):
'''
Format a duration in seconds as an HH:MM:SS format time
'''
td = datetime.timedelta(seconds=t)
min = td.days*1440 + td.seconds/60.0
hrs = td.days*24 + td.seconds/3600.0
return '%i:%02i:%02i' % (hrs, min%60, td.seconds%60)
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