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"""Pynche -- The PYthon Natural Color and Hue Editor.
Contact: %(AUTHNAME)s
Email: %(AUTHEMAIL)s
Version: %(__version__)s
Pynche is based largely on a similar color editor I wrote years ago for the
SunView window system. That editor was called ICE: the Interactive Color
Editor. I'd always wanted to port the editor to X but didn't feel like
hacking X and C code to do it. Fast forward many years, to where Python +
Tkinter provides such a nice programming environment, with enough power, that
I finally buckled down and implemented it. I changed the name because these
days, too many other systems have the acronym `ICE'.
This program currently requires Python 2.2 with Tkinter.
Usage: %(PROGRAM)s [-d file] [-i file] [-X] [-v] [-h] [initialcolor]
Where:
--database file
-d file
Alternate location of a color database file
--initfile file
-i file
Alternate location of the initialization file. This file contains a
persistent database of the current Pynche options and color. This
means that Pynche restores its option settings and current color when
it restarts, using this file (unless the -X option is used). The
default is ~/.pynche
--ignore
-X
Ignore the initialization file when starting up. Pynche will still
write the current option settings to this file when it quits.
--version
-v
print the version number and exit
--help
-h
print this message
initialcolor
initial color, as a color name or #RRGGBB format
"""
__version__ = '1.4.1'
import sys
import os
import getopt
import ColorDB
from PyncheWidget import PyncheWidget
from Switchboard import Switchboard
from StripViewer import StripViewer
from ChipViewer import ChipViewer
from TypeinViewer import TypeinViewer
PROGRAM = sys.argv[0]
AUTHNAME = 'Barry Warsaw'
AUTHEMAIL = 'barry@python.org'
# Default locations of rgb.txt or other textual color database
RGB_TXT = [
# Solaris OpenWindows
'/usr/openwin/lib/rgb.txt',
# Linux
'/usr/lib/X11/rgb.txt',
# The X11R6.4 rgb.txt file
os.path.join(sys.path[0], 'X/rgb.txt'),
# add more here
]
# Do this because PyncheWidget.py wants to get at the interpolated docstring
# too, for its Help menu.
def docstring():
return __doc__ % globals()
def usage(code, msg=''):
print docstring()
if msg:
print msg
sys.exit(code)
def initial_color(s, colordb):
# function called on every color
def scan_color(s, colordb=colordb):
try:
r, g, b = colordb.find_byname(s)
except ColorDB.BadColor:
try:
r, g, b = ColorDB.rrggbb_to_triplet(s)
except ColorDB.BadColor:
return None, None, None
return r, g, b
#
# First try the passed in color
r, g, b = scan_color(s)
if r is None:
# try the same color with '#' prepended, since some shells require
# this to be escaped, which is a pain
r, g, b = scan_color('#' + s)
if r is None:
print 'Bad initial color, using gray50:', s
r, g, b = scan_color('gray50')
if r is None:
usage(1, 'Cannot find an initial color to use')
# does not return
return r, g, b
def build(master=None, initialcolor=None, initfile=None, ignore=None,
dbfile=None):
# create all output widgets
s = Switchboard(not ignore and initfile)
# defer to the command line chosen color database, falling back to the one
# in the .pynche file.
if dbfile is None:
dbfile = s.optiondb().get('DBFILE')
# find a parseable color database
colordb = None
files = RGB_TXT[:]
if dbfile is None:
dbfile = files.pop()
while colordb is None:
try:
colordb = ColorDB.get_colordb(dbfile)
except (KeyError, IOError):
pass
if colordb is None:
if not files:
break
dbfile = files.pop(0)
if not colordb:
usage(1, 'No color database file found, see the -d option.')
s.set_colordb(colordb)
# create the application window decorations
app = PyncheWidget(__version__, s, master=master)
w = app.window()
# these built-in viewers live inside the main Pynche window
s.add_view(StripViewer(s, w))
s.add_view(ChipViewer(s, w))
s.add_view(TypeinViewer(s, w))
# get the initial color as components and set the color on all views. if
# there was no initial color given on the command line, use the one that's
# stored in the option database
if initialcolor is None:
optiondb = s.optiondb()
red = optiondb.get('RED')
green = optiondb.get('GREEN')
blue = optiondb.get('BLUE')
# but if there wasn't any stored in the database, use grey50
if red is None or blue is None or green is None:
red, green, blue = initial_color('grey50', colordb)
else:
red, green, blue = initial_color(initialcolor, colordb)
s.update_views(red, green, blue)
return app, s
def run(app, s):
try:
app.start()
except KeyboardInterrupt:
pass
def main():
try:
opts, args = getopt.getopt(
sys.argv[1:],
'hd:i:Xv',
['database=', 'initfile=', 'ignore', 'help', 'version'])
except getopt.error, msg:
usage(1, msg)
if len(args) == 0:
initialcolor = None
elif len(args) == 1:
initialcolor = args[0]
else:
usage(1)
ignore = False
dbfile = None
initfile = os.path.expanduser('~/.pynche')
for opt, arg in opts:
if opt in ('-h', '--help'):
usage(0)
elif opt in ('-v', '--version'):
print """\
Pynche -- The PYthon Natural Color and Hue Editor.
Contact: %(AUTHNAME)s
Email: %(AUTHEMAIL)s
Version: %(__version__)s""" % globals()
sys.exit(0)
elif opt in ('-d', '--database'):
dbfile = arg
elif opt in ('-X', '--ignore'):
ignore = True
elif opt in ('-i', '--initfile'):
initfile = arg
app, sb = build(initialcolor=initialcolor,
initfile=initfile,
ignore=ignore,
dbfile=dbfile)
run(app, sb)
sb.save_views()
if __name__ == '__main__':
main()