1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
"""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. TBD: 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__':
class Tester:
def __init__(self):
from Tkinter import *
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()