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import sys
from Tkinter import *
from pynche import __version__
import ColorDB
class ListViewer:
def __init__(self, switchboard, parent=None):
self.__sb = switchboard
self.__lastbox = None
root = self.__root = Toplevel(parent, class_='Pynche')
root.protocol('WM_DELETE_WINDOW', self.__withdraw)
root.title('Pynche %s' % __version__)
root.iconname('Pynche Color List')
root.bind('<Alt-q>', self.__quit)
root.bind('<Alt-Q>', self.__quit)
#
# 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)
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'))
#
# create all the buttons
colordb = switchboard.colordb()
row = 0
names = colordb.all_names()
names.sort()
widest = 0
bboxes = self.__bboxes = []
for name in 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,))
canvas.bind('<ButtonRelease>', self.__onrelease)
bboxes.append(boxid)
if textend+3 > widest:
widest = textend+3
row = 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.__sb.update_views(red, green, blue)
def __quit(self, event=None):
sys.exit(0)
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
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