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