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Edit File : pyColorChooser.py \| Size : 3.68 KB
"""Color chooser implementing (almost) the tkColorColor interface """ import os import Main import ColorDB class Chooser: """Ask for a color""" def __init__(self, master = None, databasefile = None, initfile = None, ignore = None, wantspec = None): self.__master = master self.__databasefile = databasefile self.__initfile = initfile or os.path.expanduser('~/.pynche') self.__ignore = ignore self.__pw = None self.__wantspec = wantspec def show(self, color, options): # scan for options that can override the ctor options self.__wantspec = options.get('wantspec', self.__wantspec) dbfile = options.get('databasefile', self.__databasefile) # load the database file colordb = None if dbfile <> self.__databasefile: colordb = ColorDB.get_colordb(dbfile) if not self.__master: from Tkinter import Tk self.__master = Tk() if not self.__pw: self.__pw, self.__sb = \ Main.build(master = self.__master, initfile = self.__initfile, ignore = self.__ignore) else: self.__pw.deiconify() # convert color if colordb: self.__sb.set_colordb(colordb) else: colordb = self.__sb.colordb() if color: r, g, b = Main.initial_color(color, colordb) self.__sb.update_views(r, g, b) # reset the canceled flag and run it self.__sb.canceled(0) Main.run(self.__pw, self.__sb) rgbtuple = self.__sb.current_rgb() self.__pw.withdraw() # check to see if the cancel button was pushed if self.__sb.canceled_p(): return None, None # Try to return the color name from the database if there is an exact # match, otherwise use the "#rrggbb" spec. BAW: Forget about color # aliases for now, maybe later we should return these too. name = None if not self.__wantspec: try: name = colordb.find_byrgb(rgbtuple)[0] except ColorDB.BadColor: pass if name is None: name = ColorDB.triplet_to_rrggbb(rgbtuple) return rgbtuple, name def save(self): if self.__sb: self.__sb.save_views() # convenience stuff _chooser = None def askcolor(color = None, *options): """Ask for a color""" global _chooser if not _chooser: _chooser = apply(Chooser, (), options) return _chooser.show(color, options) def save(): global _chooser if _chooser: _chooser.save() # test stuff if __name__ == '__main__': from Tkinter import class Tester: def __init__(self): self.__root = tk = Tk() b = Button(tk, text='Choose Color...', command=self.__choose) b.pack() self.__l = Label(tk) self.__l.pack() q = Button(tk, text='Quit', command=self.__quit) q.pack() def __choose(self, event=None): rgb, name = askcolor(master=self.__root) if rgb is None: text = 'You hit CANCEL!' else: r, g, b = rgb text = 'You picked %s (%3d/%3d/%3d)' % (name, r, g, b) self.__l.configure(text=text) def __quit(self, event=None): self.__root.quit() def run(self): self.__root.mainloop() t = Tester() t.run() # simpler ## print 'color:', askcolor() ## print 'color:', askcolor() Back

Edit File : pyColorChooser.py | Size : 3.68 KB

"""Color chooser implementing (almost) the tkColorColor interface
"""

import os
import Main
import ColorDB

class Chooser:
    """Ask for a color"""
    def __init__(self,
                 master = None,
                 databasefile = None,
                 initfile = None,
                 ignore = None,
                 wantspec = None):
        self.__master = master
        self.__databasefile = databasefile
        self.__initfile = initfile or os.path.expanduser('~/.pynche')
        self.__ignore = ignore
        self.__pw = None
        self.__wantspec = wantspec

def show(self, color, options):
        # scan for options that can override the ctor options
        self.__wantspec = options.get('wantspec', self.__wantspec)
        dbfile = options.get('databasefile', self.__databasefile)
        # load the database file
        colordb = None
        if dbfile <> self.__databasefile:
            colordb = ColorDB.get_colordb(dbfile)
        if not self.__master:
            from Tkinter import Tk
            self.__master = Tk()
        if not self.__pw:
            self.__pw, self.__sb = \
                       Main.build(master = self.__master,
                                  initfile = self.__initfile,
                                  ignore = self.__ignore)
        else:
            self.__pw.deiconify()
        # convert color
        if colordb:
            self.__sb.set_colordb(colordb)
        else:
            colordb = self.__sb.colordb()
        if color:
            r, g, b = Main.initial_color(color, colordb)
            self.__sb.update_views(r, g, b)
        # reset the canceled flag and run it
        self.__sb.canceled(0)
        Main.run(self.__pw, self.__sb)
        rgbtuple = self.__sb.current_rgb()
        self.__pw.withdraw()
        # check to see if the cancel button was pushed
        if self.__sb.canceled_p():
            return None, None
        # Try to return the color name from the database if there is an exact
        # match, otherwise use the "#rrggbb" spec.  BAW: Forget about color
        # aliases for now, maybe later we should return these too.
        name = None
        if not self.__wantspec:
            try:
                name = colordb.find_byrgb(rgbtuple)[0]
            except ColorDB.BadColor:
                pass
        if name is None:
            name = ColorDB.triplet_to_rrggbb(rgbtuple)
        return rgbtuple, name

def save(self):
        if self.__sb:
            self.__sb.save_views()

# convenience stuff
_chooser = None

def askcolor(color = None, **options):
    """Ask for a color"""
    global _chooser
    if not _chooser:
        _chooser = apply(Chooser, (), options)
    return _chooser.show(color, options)

def save():
    global _chooser
    if _chooser:
        _chooser.save()

# test stuff
if __name__ == '__main__':
    from Tkinter import *

class Tester:
        def __init__(self):
            self.__root = tk = Tk()
            b = Button(tk, text='Choose Color...', command=self.__choose)
            b.pack()
            self.__l = Label(tk)
            self.__l.pack()
            q = Button(tk, text='Quit', command=self.__quit)
            q.pack()

def __choose(self, event=None):
            rgb, name = askcolor(master=self.__root)
            if rgb is None:
                text = 'You hit CANCEL!'
            else:
                r, g, b = rgb
                text = 'You picked %s (%3d/%3d/%3d)' % (name, r, g, b)
            self.__l.configure(text=text)

def __quit(self, event=None):
            self.__root.quit()

def run(self):
            self.__root.mainloop()
    t = Tester()
    t.run()
    # simpler
##    print 'color:', askcolor()
##    print 'color:', askcolor()

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