Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 1 | """Color chooser implementing (almost) the tkColorColor interface |
| 2 | """ |
| 3 | |
| 4 | import os |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 5 | import Main |
| 6 | import ColorDB |
| 7 | |
Barry Warsaw | 698c149 | 2001-07-10 21:45:27 +0000 | [diff] [blame] | 8 | |
| 9 | |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 10 | class Chooser: |
| 11 | """Ask for a color""" |
| 12 | def __init__(self, |
| 13 | master = None, |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 14 | databasefile = None, |
| 15 | initfile = None, |
Barry Warsaw | a20f6af | 1998-10-22 03:44:52 +0000 | [diff] [blame] | 16 | ignore = None, |
| 17 | wantspec = None): |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 18 | self.__master = master |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 19 | self.__databasefile = databasefile |
| 20 | self.__initfile = initfile or os.path.expanduser('~/.pynche') |
| 21 | self.__ignore = ignore |
| 22 | self.__pw = None |
Barry Warsaw | a20f6af | 1998-10-22 03:44:52 +0000 | [diff] [blame] | 23 | self.__wantspec = wantspec |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 24 | |
Barry Warsaw | 80d83e3 | 1999-04-27 18:56:35 +0000 | [diff] [blame] | 25 | def show(self, color, options): |
| 26 | # scan for options that can override the ctor options |
| 27 | self.__wantspec = options.get('wantspec', self.__wantspec) |
| 28 | dbfile = options.get('databasefile', self.__databasefile) |
| 29 | # load the database file |
| 30 | colordb = None |
| 31 | if dbfile <> self.__databasefile: |
| 32 | colordb = ColorDB.get_colordb(dbfile) |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 33 | if not self.__master: |
| 34 | from Tkinter import Tk |
| 35 | self.__master = Tk() |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 36 | if not self.__pw: |
| 37 | self.__pw, self.__sb = \ |
| 38 | Main.build(master = self.__master, |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 39 | initfile = self.__initfile, |
| 40 | ignore = self.__ignore) |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 41 | else: |
| 42 | self.__pw.deiconify() |
| 43 | # convert color |
Barry Warsaw | 80d83e3 | 1999-04-27 18:56:35 +0000 | [diff] [blame] | 44 | if colordb: |
| 45 | self.__sb.set_colordb(colordb) |
| 46 | else: |
| 47 | colordb = self.__sb.colordb() |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 48 | if color: |
| 49 | r, g, b = Main.initial_color(color, colordb) |
| 50 | self.__sb.update_views(r, g, b) |
| 51 | # reset the canceled flag and run it |
| 52 | self.__sb.canceled(0) |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 53 | Main.run(self.__pw, self.__sb) |
| 54 | rgbtuple = self.__sb.current_rgb() |
| 55 | self.__pw.withdraw() |
| 56 | # check to see if the cancel button was pushed |
| 57 | if self.__sb.canceled_p(): |
| 58 | return None, None |
Barry Warsaw | 698c149 | 2001-07-10 21:45:27 +0000 | [diff] [blame] | 59 | # Try to return the color name from the database if there is an exact |
| 60 | # match, otherwise use the "#rrggbb" spec. BAW: Forget about color |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 61 | # aliases for now, maybe later we should return these too. |
Barry Warsaw | a20f6af | 1998-10-22 03:44:52 +0000 | [diff] [blame] | 62 | name = None |
| 63 | if not self.__wantspec: |
| 64 | try: |
| 65 | name = colordb.find_byrgb(rgbtuple)[0] |
| 66 | except ColorDB.BadColor: |
| 67 | pass |
| 68 | if name is None: |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 69 | name = ColorDB.triplet_to_rrggbb(rgbtuple) |
| 70 | return rgbtuple, name |
| 71 | |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 72 | def save(self): |
| 73 | if self.__sb: |
| 74 | self.__sb.save_views() |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 75 | |
| 76 | |
| 77 | # convenience stuff |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 78 | _chooser = None |
| 79 | |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 80 | def askcolor(color = None, **options): |
| 81 | """Ask for a color""" |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 82 | global _chooser |
| 83 | if not _chooser: |
| 84 | _chooser = apply(Chooser, (), options) |
Barry Warsaw | 80d83e3 | 1999-04-27 18:56:35 +0000 | [diff] [blame] | 85 | return _chooser.show(color, options) |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 86 | |
Barry Warsaw | 2be8582 | 1998-10-22 18:51:22 +0000 | [diff] [blame] | 87 | def save(): |
| 88 | global _chooser |
| 89 | if _chooser: |
| 90 | _chooser.save() |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 91 | |
| 92 | |
| 93 | # test stuff |
| 94 | if __name__ == '__main__': |
Barry Warsaw | 74a7ece | 2001-02-01 20:52:08 +0000 | [diff] [blame] | 95 | from Tkinter import * |
| 96 | |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 97 | class Tester: |
| 98 | def __init__(self): |
Barry Warsaw | ca07ba0 | 1998-10-22 03:25:59 +0000 | [diff] [blame] | 99 | self.__root = tk = Tk() |
| 100 | b = Button(tk, text='Choose Color...', command=self.__choose) |
| 101 | b.pack() |
| 102 | self.__l = Label(tk) |
| 103 | self.__l.pack() |
| 104 | q = Button(tk, text='Quit', command=self.__quit) |
| 105 | q.pack() |
| 106 | |
| 107 | def __choose(self, event=None): |
| 108 | rgb, name = askcolor(master=self.__root) |
| 109 | if rgb is None: |
| 110 | text = 'You hit CANCEL!' |
| 111 | else: |
| 112 | r, g, b = rgb |
| 113 | text = 'You picked %s (%3d/%3d/%3d)' % (name, r, g, b) |
| 114 | self.__l.configure(text=text) |
| 115 | |
| 116 | def __quit(self, event=None): |
| 117 | self.__root.quit() |
| 118 | |
| 119 | def run(self): |
| 120 | self.__root.mainloop() |
| 121 | t = Tester() |
| 122 | t.run() |
| 123 | # simpler |
| 124 | ## print 'color:', askcolor() |
| 125 | ## print 'color:', askcolor() |