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Edit File: Main.py

"""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()