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
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
"""ListViewer class.
This class implements an input/output view on the color model. It lists every
unique color (e.g. unique r/g/b value) found in the color database. Each
color is shown by small swatch and primary color name. Some colors have
aliases -- more than one name for the same r/g/b value. These aliases are
displayed in the small listbox at the bottom of the screen.
Clicking on a color name or swatch selects that color and updates all other
windows. When a color is selected in a different viewer, the color list is
scrolled to the selected color and it is highlighted. If the selected color
is an r/g/b value without a name, no scrolling occurs.
You can turn off Update On Click if all you want to see is the alias for a
given name, without selecting the color.
"""
from Tkinter import *
import ColorDB
ADDTOVIEW = 'Color %List Window...'
class ListViewer:
def __init__(self, switchboard, master=None):
self.__sb = switchboard
optiondb = switchboard.optiondb()
self.__lastbox = None
self.__dontcenter = 0
# GUI
root = self.__root = Toplevel(master, class_='Pynche')
root.protocol('WM_DELETE_WINDOW', self.withdraw)
root.title('Pynche Color List')
root.iconname('Pynche Color List')
root.bind('<Alt-q>', self.__quit)
root.bind('<Alt-Q>', self.__quit)
root.bind('<Alt-w>', self.withdraw)
root.bind('<Alt-W>', self.withdraw)
#
# create the canvas which holds everything, and its scrollbar
#
frame = self.__frame = Frame(root)
frame.pack()
canvas = self.__canvas = Canvas(frame, width=160, height=300,
borderwidth=2, relief=SUNKEN)
self.__scrollbar = Scrollbar(frame)
self.__scrollbar.pack(fill=Y, side=RIGHT)
canvas.pack(fill=BOTH, expand=1)
canvas.configure(yscrollcommand=(self.__scrollbar, 'set'))
self.__scrollbar.configure(command=(canvas, 'yview'))
self.__populate()
#
# Update on click
self.__uoc = BooleanVar()
self.__uoc.set(optiondb.get('UPONCLICK', 1))
self.__uocbtn = Checkbutton(root,
text='Update on Click',
variable=self.__uoc,
command=self.__toggleupdate)
self.__uocbtn.pack(expand=1, fill=BOTH)
#
# alias list
self.__alabel = Label(root, text='Aliases:')
self.__alabel.pack()
self.__aliases = Listbox(root, height=5,
selectmode=BROWSE)
self.__aliases.pack(expand=1, fill=BOTH)
def __populate(self):
#
# create all the buttons
colordb = self.__sb.colordb()
canvas = self.__canvas
row = 0
widest = 0
bboxes = self.__bboxes = []
for name in colordb.unique_names():
exactcolor = ColorDB.triplet_to_rrggbb(colordb.find_byname(name))
canvas.create_rectangle(5, row*20 + 5,
20, row*20 + 20,
fill=exactcolor)
textid = canvas.create_text(25, row*20 + 13,
text=name,
anchor=W)
x1, y1, textend, y2 = canvas.bbox(textid)
boxid = canvas.create_rectangle(3, row*20+3,
textend+3, row*20 + 23,
outline='',
tags=(exactcolor, 'all'))
canvas.bind('<ButtonRelease>', self.__onrelease)
bboxes.append(boxid)
if textend+3 > widest:
widest = textend+3
row += 1
canvheight = (row-1)*20 + 25
canvas.config(scrollregion=(0, 0, 150, canvheight))
for box in bboxes:
x1, y1, x2, y2 = canvas.coords(box)
canvas.coords(box, x1, y1, widest, y2)
def __onrelease(self, event=None):
canvas = self.__canvas
# find the current box
x = canvas.canvasx(event.x)
y = canvas.canvasy(event.y)
ids = canvas.find_overlapping(x, y, x, y)
for boxid in ids:
if boxid in self.__bboxes:
break
else:
## print 'No box found!'
return
tags = self.__canvas.gettags(boxid)
for t in tags:
if t[0] == '#':
break
else:
## print 'No color tag found!'
return
red, green, blue = ColorDB.rrggbb_to_triplet(t)
self.__dontcenter = 1
if self.__uoc.get():
self.__sb.update_views(red, green, blue)
else:
self.update_yourself(red, green, blue)
self.__red, self.__green, self.__blue = red, green, blue
def __toggleupdate(self, event=None):
if self.__uoc.get():
self.__sb.update_views(self.__red, self.__green, self.__blue)
def __quit(self, event=None):
self.__root.quit()
def withdraw(self, event=None):
self.__root.withdraw()
def deiconify(self, event=None):
self.__root.deiconify()
def update_yourself(self, red, green, blue):
canvas = self.__canvas
# turn off the last box
if self.__lastbox:
canvas.itemconfigure(self.__lastbox, outline='')
# turn on the current box
colortag = ColorDB.triplet_to_rrggbb((red, green, blue))
canvas.itemconfigure(colortag, outline='black')
self.__lastbox = colortag
# fill the aliases
self.__aliases.delete(0, END)
try:
aliases = self.__sb.colordb().aliases_of(red, green, blue)[1:]
except ColorDB.BadColor:
self.__aliases.insert(END, '<no matching color>')
return
if not aliases:
self.__aliases.insert(END, '<no aliases>')
else:
for name in aliases:
self.__aliases.insert(END, name)
# maybe scroll the canvas so that the item is visible
if self.__dontcenter:
self.__dontcenter = 0
else:
ig, ig, ig, y1 = canvas.coords(colortag)
ig, ig, ig, y2 = canvas.coords(self.__bboxes[-1])
h = int(canvas['height']) * 0.5
canvas.yview('moveto', (y1-h) / y2)
def save_options(self, optiondb):
optiondb['UPONCLICK'] = self.__uoc.get()
def colordb_changed(self, colordb):
self.__canvas.delete('all')
self.__populate()
|
