def startGui(args=[]):
"""Start the gui"""
if GD.GUI is None:
GD.debug("Starting the pyFormex GUI")
from gui import gui
gui.startGUI(args)
gui.runGUI()
def run(argv=[]):
"""This is a fairly generic main() function.
It is responsible for reading the configuration file(s),
processing the command line options and starting the application.
The basic configuration file is 'pyformexrc' located in the pyformex
directory. It should always be present and be left unchanged.
You can copy this file to another location if you want to make changes.
By default, pyformex will try to read the following extra configuration
files (in this order:
default settings: <pyformexdir>/pyformexrc
system-wide settings: /etc/pyformexrc
user settings: $HOME/.pyformex/pyformexrc
local settings $PWD/.pyformexrc
Also, an extra config file can be specified in the command line.
Config file settings always override previous ones.
On exit, the preferences that were changed are written to the last
read config file. Changed settings are those that differ from the settings
in all but the last one.
"""
# Create a config instance
pyformex.cfg = Config()
# Fill in the pyformexdir and homedir variables
# (use a read, not an update)
if os.name == "posix":
homedir = os.environ["HOME"]
elif os.name == "nt":
homedir = os.environ["HOMEDRIVE"] + os.environ["HOMEPATH"]
pyformex.cfg.read("pyformexdir = '%s'\n" % pyformexdir)
pyformex.cfg.read("homedir = '%s'\n" % homedir)
# Read the defaults (before the options)
defaults = os.path.join(pyformexdir, "pyformexrc")
pyformex.cfg.read(defaults)
# Process options
from optparse import OptionParser, make_option as MO
parser = OptionParser(
usage="usage: %prog [<options>] [ -- <Qapp-options> ] [[ scriptname [scriptargs]] ...]",
version=pyformex.Version,
option_list=[
MO(
"--gui",
action="store_true",
dest="gui",
default=None,
help="start the GUI (default if no scriptfile argument is given)",
),
MO(
"--nogui",
action="store_false",
dest="gui",
default=None,
help="do not load the GUI (default if a scriptfile argument is given)",
),
MO(
"--interactive",
"-i",
action="store_true",
dest="interactive",
default=False,
help="go into interactive mode after processing the command line parameters. This is implied by the --gui option.",
),
MO("--force-dri", action="store_true", dest="dri", default=None, help="Force use of Direct Rendering"),
MO("--force-nodri", action="store_false", dest="dri", default=None, help="Disables the Direct Rendering"),
MO(
"--uselib",
action="store_true",
dest="uselib",
default=None,
help="Use the pyFormex C lib if available. This is the default.",
),
MO("--nouselib", action="store_false", dest="uselib", default=None, help="Do not use the pyFormex C-lib."),
MO(
"--safelib",
action="store_true",
dest="safelib",
default=True,
help="Convert data types to match C-lib. This is the default.",
),
MO(
"--unsafelib",
action="store_false",
dest="safelib",
default=True,
help="Do not convert data types to match C-lib. BEWARE: this may make the C-lib calls impossible. Use only for debugging purposes.",
),
MO(
"--fastencode",
action="store_true",
dest="fastencode",
default=False,
help="Use a fast algorithm to encode edges.",
),
MO("--config", action="store", dest="config", default=None, help="Use file CONFIG for settings"),
MO(
"--nodefaultconfig",
action="store_true",
dest="nodefaultconfig",
default=False,
help="Skip the default site and user config files. This option can only be used in conjunction with the --config option.",
),
MO(
"--redirect",
action="store_true",
dest="redirect",
default=False,
help="Redirect standard output to the message board (ignored with --nogui)",
),
MO(
"--detect",
action="store_true",
dest="detect",
default=False,
help="Detect helper software and print report.",
),
MO(
"--debug", action="store_true", dest="debug", default=False, help="display debugging info to sys.stdout"
),
MO(
"--classify",
action="store_true",
dest="classify",
default=False,
help="classify the examples in categories",
),
MO(
"--whereami",
action="store_true",
dest="whereami",
default=False,
help="show where the pyformex package is located",
),
MO("--remove", action="store_true", dest="remove", default=False, help="remove the pyformex installation"),
MO("--test", action="store_true", dest="test", default=False, help="testing mode: only for developers!"),
MO(
"--testhighlight",
action="store_true",
dest="testhighlight",
default=False,
help="highlight testing mode: only for developers!",
),
MO(
"--executor",
action="store_true",
dest="executor",
default=False,
help="test alternate executor: only for developers!",
),
],
)
pyformex.options, args = parser.parse_args(argv)
pyformex.print_help = parser.print_help
# process options
if pyformex.options.nodefaultconfig and not pyformex.options.config:
print("\nInvalid options: --nodefaultconfig but no --config option\nDo pyformex --help for help on options.\n")
sys.exit()
if pyformex.options.whereami:
print("Script started from %s" % pyformex.scriptdir)
print("I found pyFormex in %s " % pyformexdir)
print("Current Python sys.path: %s" % sys.path)
sys.exit()
if pyformex.options.remove:
remove_pyFormex(pyformexdir, pyformex.scriptdir)
if pyformex.options.detect:
print("Detecting all installed helper software")
utils.checkExternal()
print(utils.reportDetected())
sys.exit()
pyformex.debug("Options: %s" % pyformex.options)
########### Read the config files ####################
# Create the user conf dir
if not os.path.exists(pyformex.cfg.userconfdir):
os.mkdir(pyformex.cfg.userconfdir)
# These values should not be changed
pyformex.cfg.userprefs = os.path.join(pyformex.cfg.userconfdir, "pyformexrc")
pyformex.cfg.autorun = os.path.join(pyformex.cfg.userconfdir, "startup.py")
# Migrate old user prefs
olduserprefs = os.path.join(pyformex.cfg.homedir, ".pyformexrc")
if not os.path.exists(pyformex.cfg.userprefs) and os.path.exists(olduserprefs):
import shutil
print("Moving user preferences to new location")
print("%s --> %s" % (olduserprefs, pyformex.cfg.userprefs))
shutil.move(olduserprefs, pyformex.cfg.userprefs)
# Set the config files
if pyformex.options.nodefaultconfig:
sysprefs = []
userprefs = []
else:
sysprefs = [pyformex.cfg.siteprefs]
userprefs = [pyformex.cfg.userprefs]
if os.path.exists(pyformex.cfg.localprefs):
userprefs.append(pyformex.cfg.localprefs)
if pyformex.options.config:
userprefs.append(pyformex.options.config)
if len(userprefs) == 0:
# We should always have a place to store the user preferences
userprefs = [pyformex.cfg.userprefs]
pyformex.preffile = os.path.abspath(userprefs[-1]) # Settings will be saved here
# Read all but the last as reference
for f in filter(os.path.exists, sysprefs + userprefs[:-1]):
pyformex.debug("Reading config file %s" % f)
pyformex.cfg.read(f)
pyformex.refcfg = pyformex.cfg
pyformex.debug("RefConfig: %s" % pyformex.refcfg)
# Use the last as place to save preferences
pyformex.cfg = Config(default=refLookup)
if os.path.exists(pyformex.preffile):
pyformex.debug("Reading config file %s" % pyformex.preffile)
pyformex.cfg.read(pyformex.preffile)
pyformex.debug("Config: %s" % pyformex.cfg)
# Set option from config if it was not explicitely given
if pyformex.options.uselib is None:
pyformex.options.uselib = pyformex.cfg["uselib"]
# Set default --nogui if first remaining argument is a pyformex script.
if pyformex.options.gui is None:
pyformex.options.gui = not (len(args) > 0 and utils.isPyFormex(args[0]))
if pyformex.options.gui:
pyformex.options.interactive = True
# Set Revision if we run from an SVN version
if svnversion:
setRevision()
pyformex.debug(utils.reportDetected())
# print("pyformex",utils.subDict(pyformex.cfg,'canvas/'))
# print("DEFAULT",self.default)
# print(pyformex.cfg.keys())
# print(pyformex.refcfg.keys())
# Start the GUI if needed
# Importing the gui should be done after the config is set !!
if pyformex.options.gui:
pyformex.debug("GUI version")
from gui import gui
gui.startGUI(args)
#
# Qt4 may have changed the locale.
# Since a LC_NUMERIC setting other than C may cause lots of troubles
# with reading and writing files (formats become incompatible!)
# we put it back to a sane setting
#
utils.setSaneLocale()
# Initialize the libraries
# print("NOW LOAIDNG LIBS")
# import lib
# lib.init_libs(pyformex.options.uselib,pyformex.options.gui)
# Prepend the autorun scripts
ar = pyformex.cfg.get("autorun", "")
if ar:
if type(ar) is str:
ar = [ar]
# expand tilde, as would bash
ar = map(utils.tildeExpand, ar)
args[0:0] = [fn for fn in ar if os.path.exists(fn)]
# remaining args are interpreted as scripts and their parameters
res = 0
if args:
pyformex.debug("Remaining args: %s" % args)
from script import processArgs
res = processArgs(args)
if res:
if pyformex.options.gui:
pyformex.message("There was an error while executing a script")
else:
return res
else:
pyformex.debug("stdin is a tty: %s" % sys.stdin.isatty())
# Play script from stdin
# Can we check for interactive session: stdin connected to terminal?
# from script import playScript
# playScript(sys.stdin)
# after processing all args, go into interactive mode
if pyformex.options.gui:
res = gui.runGUI()
## elif pyformex.options.interactive:
## print("Enter your script and end with CTRL-D")
## from script import playScript
## playScript(sys.stdin)
# Save the preferences that have changed
savePreferences()
# Exit
return res