"""Main Pynche (Pythonically Natural Color and Hue Editor) widget. """ from Tkinter import * import Pmw import ColorDB from ChipWidget import ChipWidget from TypeinWidget import TypeinWidget from StripWidget import StripWidget from OptionsWidget import OptionsWidget ABOUTTEXT = '''Pynche 1.0 -- The Pythonically Natural Color and Hue Editor Copyright (C) 1998 Barry A. Warsaw Pynche is based on ICE 1.2 (Interactive Color Editor), written by Barry A. Warsaw for the SunView window system in 1987.''' def constant(numchips): step = 255.0 / (numchips - 1) start = 0.0 seq = [] while numchips > 0: seq.append(int(start)) start = start + step numchips = numchips - 1 return seq # red variations, green+blue = cyan constant def constant_cyan_generator(numchips, rgbtuple): red, green, blue = rgbtuple seq = constant(numchips) return map(None, seq, [green] * numchips, [blue] * numchips) # green variations, red+blue = magenta constant def constant_magenta_generator(numchips, rgbtuple): red, green, blue = rgbtuple seq = constant(numchips) return map(None, [red] * numchips, seq, [blue] * numchips) # blue variations, red+green = yellow constant def constant_yellow_generator(numchips, rgbtuple): red, green, blue = rgbtuple seq = constant(numchips) return map(None, [red] * numchips, [green] * numchips, seq) class PyncheWidget(Pmw.MegaWidget): def __init__(self, colordb, parent=None, **kw): self.__colordb = colordb self.__parent = parent self.__about_dialog = None self.__options_dialog = None options = (('color', (128, 128, 128), self.__set_color), ('delegate', None, None), ) self.defineoptions(kw, options) # initialize base class -- after defining options Pmw.MegaWidget.__init__(self, parent) # create menubar self.__menubar = Pmw.MenuBar(parent, hull_relief=RAISED, hull_borderwidth=1) self.__menubar.pack(side=TOP, expand=YES, fill=BOTH) self.__menubar.addmenu('File', None) self.__menubar.addmenuitem('File', type=COMMAND, label='Quit', command=self.__quit, accelerator='Alt-Q') parent.bind('', self.__quit) parent.bind('', self.__quit) self.__menubar.addmenu('Help', None, side=RIGHT) self.__menubar.addmenuitem('Help', type=COMMAND, label='About...', command=self.__popup_about, accelerator='Alt-A') parent.bind('', self.__popup_about) parent.bind('', self.__popup_about) self.__menubar.addmenu('Edit', None) self.__menubar.addmenuitem('Edit', type=COMMAND, label='Options...', command=self.__popup_options, accelerator='Alt-O') parent.bind('', self.__popup_options) parent.bind('', self.__popup_options) # create color selectors group = Pmw.Group(parent, tag_text='Variations') group.pack(side=TOP, expand=YES, fill=BOTH) self.__reds = StripWidget(group.interior(), generator=constant_cyan_generator, axis=0, label='Red Variations') self.__reds.pack() self.__blues = StripWidget(group.interior(), generator=constant_magenta_generator, axis=1, label='Green Variations') self.__blues.pack() self.__greens = StripWidget(group.interior(), generator=constant_yellow_generator, axis=2, label='Blue Variations') self.__greens.pack() # create chip window group = Pmw.Group(parent, tag_text='Current Color') group.pack(side=LEFT, expand=YES, fill=BOTH) self.__selected = ChipWidget(group.interior(), label_text='Selected') self.__selected.grid() self.__nearest = ChipWidget(group.interior(), label_text='Nearest') self.__nearest.grid(row=0, column=1) # TBD: this is somewhat bogus, as the code should be in a derived # class of ChipWidget. self.__chip = self.__nearest.component('chip') self.__chip.bind('', self.__buttonpress) self.__chip.bind('', self.__buttonrelease) # create the options window self.__typein = TypeinWidget(group.interior()) self.__typein.grid(row=0, column=2) # Check keywords and initialize options self.initialiseoptions(PyncheWidget) self.__typein.configure(delegate=self) self.__reds.configure(delegate=self) self.__greens.configure(delegate=self) self.__blues.configure(delegate=self) # # PUBLIC INTERFACE # def set_color(self, obj, rgbtuple): nearest = self.__colordb.nearest(rgbtuple) red, green, blue = self.__colordb.find_byname(nearest) # for an exact match, use the color name if (red, green, blue) == rgbtuple: self.__selected.configure(color=nearest) # otherwise, use the #rrggbb name else: rrggbb = ColorDB.triplet_to_rrggbb(rgbtuple) self.__selected.configure(color=rrggbb) # configure all subwidgets self.__nearest.configure(color=nearest) self.__typein.configure(color=rgbtuple) self.__reds.configure(color=rgbtuple) self.__greens.configure(color=rgbtuple) self.__blues.configure(color=rgbtuple) delegate = self['delegate'] if delegate: delegate.set_color(self, rgbtuple) # # PRIVATE INTERFACE # def __set_color(self): self.set_color(self, self['color']) def __buttonpress(self, event=None): self.__chip.configure(relief=SUNKEN) def __buttonrelease(self, event=None): self.__chip.configure(relief=RAISED) color = self.__nearest['color'] rgbtuple = self.__colordb.find_byname(color) self.set_color(self, rgbtuple) def __quit(self, event=None): self.__parent.quit() def __popup_about(self, event=None): if not self.__about_dialog: Pmw.aboutversion('1.0') Pmw.aboutcopyright('Copyright (C) 1998 Barry A. Warsaw\n' 'All rights reserved') Pmw.aboutcontact('For information about Pynche contact:\n' 'Barry A. Warsaw\n' 'email: bwarsaw@python.org') self.__about_dialog = Pmw.AboutDialog( applicationname='Pynche -- the PYthonically Natural\n' 'Color and Hue Editor') self.__about_dialog.show() def __popup_options(self, event=None): if not self.__options_dialog: self.__options_dialog = OptionsWidget() self.__options_dialog.activate() # now gather up the new options self.__typein.set_update_on_typing( self.__options_dialog.get_value('typing'))