Python code coverage for Tools/pynche/ListViewer.py

#	count	content
1	n/a	"""ListViewer class.
2	n/a
3	n/a	This class implements an input/output view on the color model. It lists every
4	n/a	unique color (e.g. unique r/g/b value) found in the color database. Each
5	n/a	color is shown by small swatch and primary color name. Some colors have
6	n/a	aliases -- more than one name for the same r/g/b value. These aliases are
7	n/a	displayed in the small listbox at the bottom of the screen.
8	n/a
9	n/a	Clicking on a color name or swatch selects that color and updates all other
10	n/a	windows. When a color is selected in a different viewer, the color list is
11	n/a	scrolled to the selected color and it is highlighted. If the selected color
12	n/a	is an r/g/b value without a name, no scrolling occurs.
13	n/a
14	n/a	You can turn off Update On Click if all you want to see is the alias for a
15	n/a	given name, without selecting the color.
16	n/a	"""
17	n/a
18	n/a	from tkinter import *
19	n/a	import ColorDB
20	n/a
21	n/a	ADDTOVIEW = 'Color %List Window...'
22	n/a
23	n/a	class ListViewer:
24	n/a	def __init__(self, switchboard, master=None):
25	n/a	self.__sb = switchboard
26	n/a	optiondb = switchboard.optiondb()
27	n/a	self.__lastbox = None
28	n/a	self.__dontcenter = 0
29	n/a	# GUI
30	n/a	root = self.__root = Toplevel(master, class_='Pynche')
31	n/a	root.protocol('WM_DELETE_WINDOW', self.withdraw)
32	n/a	root.title('Pynche Color List')
33	n/a	root.iconname('Pynche Color List')
34	n/a	root.bind('<Alt-q>', self.__quit)
35	n/a	root.bind('<Alt-Q>', self.__quit)
36	n/a	root.bind('<Alt-w>', self.withdraw)
37	n/a	root.bind('<Alt-W>', self.withdraw)
38	n/a	#
39	n/a	# create the canvas which holds everything, and its scrollbar
40	n/a	#
41	n/a	frame = self.__frame = Frame(root)
42	n/a	frame.pack()
43	n/a	canvas = self.__canvas = Canvas(frame, width=160, height=300,
44	n/a	borderwidth=2, relief=SUNKEN)
45	n/a	self.__scrollbar = Scrollbar(frame)
46	n/a	self.__scrollbar.pack(fill=Y, side=RIGHT)
47	n/a	canvas.pack(fill=BOTH, expand=1)
48	n/a	canvas.configure(yscrollcommand=(self.__scrollbar, 'set'))
49	n/a	self.__scrollbar.configure(command=(canvas, 'yview'))
50	n/a	self.__populate()
51	n/a	#
52	n/a	# Update on click
53	n/a	self.__uoc = BooleanVar()
54	n/a	self.__uoc.set(optiondb.get('UPONCLICK', 1))
55	n/a	self.__uocbtn = Checkbutton(root,
56	n/a	text='Update on Click',
57	n/a	variable=self.__uoc,
58	n/a	command=self.__toggleupdate)
59	n/a	self.__uocbtn.pack(expand=1, fill=BOTH)
60	n/a	#
61	n/a	# alias list
62	n/a	self.__alabel = Label(root, text='Aliases:')
63	n/a	self.__alabel.pack()
64	n/a	self.__aliases = Listbox(root, height=5,
65	n/a	selectmode=BROWSE)
66	n/a	self.__aliases.pack(expand=1, fill=BOTH)
67	n/a
68	n/a	def __populate(self):
69	n/a	#
70	n/a	# create all the buttons
71	n/a	colordb = self.__sb.colordb()
72	n/a	canvas = self.__canvas
73	n/a	row = 0
74	n/a	widest = 0
75	n/a	bboxes = self.__bboxes = []
76	n/a	for name in colordb.unique_names():
77	n/a	exactcolor = ColorDB.triplet_to_rrggbb(colordb.find_byname(name))
78	n/a	canvas.create_rectangle(5, row*20 + 5,
79	n/a	20, row*20 + 20,
80	n/a	fill=exactcolor)
81	n/a	textid = canvas.create_text(25, row*20 + 13,
82	n/a	text=name,
83	n/a	anchor=W)
84	n/a	x1, y1, textend, y2 = canvas.bbox(textid)
85	n/a	boxid = canvas.create_rectangle(3, row*20+3,
86	n/a	textend+3, row*20 + 23,
87	n/a	outline='',
88	n/a	tags=(exactcolor, 'all'))
89	n/a	canvas.bind('<ButtonRelease>', self.__onrelease)
90	n/a	bboxes.append(boxid)
91	n/a	if textend+3 > widest:
92	n/a	widest = textend+3
93	n/a	row += 1
94	n/a	canvheight = (row-1)*20 + 25
95	n/a	canvas.config(scrollregion=(0, 0, 150, canvheight))
96	n/a	for box in bboxes:
97	n/a	x1, y1, x2, y2 = canvas.coords(box)
98	n/a	canvas.coords(box, x1, y1, widest, y2)
99	n/a
100	n/a	def __onrelease(self, event=None):
101	n/a	canvas = self.__canvas
102	n/a	# find the current box
103	n/a	x = canvas.canvasx(event.x)
104	n/a	y = canvas.canvasy(event.y)
105	n/a	ids = canvas.find_overlapping(x, y, x, y)
106	n/a	for boxid in ids:
107	n/a	if boxid in self.__bboxes:
108	n/a	break
109	n/a	else:
110	n/a	## print 'No box found!'
111	n/a	return
112	n/a	tags = self.__canvas.gettags(boxid)
113	n/a	for t in tags:
114	n/a	if t[0] == '#':
115	n/a	break
116	n/a	else:
117	n/a	## print 'No color tag found!'
118	n/a	return
119	n/a	red, green, blue = ColorDB.rrggbb_to_triplet(t)
120	n/a	self.__dontcenter = 1
121	n/a	if self.__uoc.get():
122	n/a	self.__sb.update_views(red, green, blue)
123	n/a	else:
124	n/a	self.update_yourself(red, green, blue)
125	n/a	self.__red, self.__green, self.__blue = red, green, blue
126	n/a
127	n/a	def __toggleupdate(self, event=None):
128	n/a	if self.__uoc.get():
129	n/a	self.__sb.update_views(self.__red, self.__green, self.__blue)
130	n/a
131	n/a	def __quit(self, event=None):
132	n/a	self.__root.quit()
133	n/a
134	n/a	def withdraw(self, event=None):
135	n/a	self.__root.withdraw()
136	n/a
137	n/a	def deiconify(self, event=None):
138	n/a	self.__root.deiconify()
139	n/a
140	n/a	def update_yourself(self, red, green, blue):
141	n/a	canvas = self.__canvas
142	n/a	# turn off the last box
143	n/a	if self.__lastbox:
144	n/a	canvas.itemconfigure(self.__lastbox, outline='')
145	n/a	# turn on the current box
146	n/a	colortag = ColorDB.triplet_to_rrggbb((red, green, blue))
147	n/a	canvas.itemconfigure(colortag, outline='black')
148	n/a	self.__lastbox = colortag
149	n/a	# fill the aliases
150	n/a	self.__aliases.delete(0, END)
151	n/a	try:
152	n/a	aliases = self.__sb.colordb().aliases_of(red, green, blue)[1:]
153	n/a	except ColorDB.BadColor:
154	n/a	self.__aliases.insert(END, '<no matching color>')
155	n/a	return
156	n/a	if not aliases:
157	n/a	self.__aliases.insert(END, '<no aliases>')
158	n/a	else:
159	n/a	for name in aliases:
160	n/a	self.__aliases.insert(END, name)
161	n/a	# maybe scroll the canvas so that the item is visible
162	n/a	if self.__dontcenter:
163	n/a	self.__dontcenter = 0
164	n/a	else:
165	n/a	ig, ig, ig, y1 = canvas.coords(colortag)
166	n/a	ig, ig, ig, y2 = canvas.coords(self.__bboxes[-1])
167	n/a	h = int(canvas['height']) * 0.5
168	n/a	canvas.yview('moveto', (y1-h) / y2)
169	n/a
170	n/a	def save_options(self, optiondb):
171	n/a	optiondb['UPONCLICK'] = self.__uoc.get()
172	n/a
173	n/a	def colordb_changed(self, colordb):
174	n/a	self.__canvas.delete('all')
175	n/a	self.__populate()