Python code coverage for Tools/pynche/TextViewer.py

#	count	content
1	n/a	"""TextViewer class.
2	n/a
3	n/a	The TextViewer allows you to see how the selected color would affect various
4	n/a	characteristics of a Tk text widget. This is an output viewer only.
5	n/a
6	n/a	In the top part of the window is a standard text widget with some sample text
7	n/a	in it. You are free to edit this text in any way you want (BAW: allow you to
8	n/a	change font characteristics). If you want changes in other viewers to update
9	n/a	text characteristics, turn on Track color changes.
10	n/a
11	n/a	To select which characteristic tracks the change, select one of the radio
12	n/a	buttons in the window below. Text foreground and background affect the text
13	n/a	in the window above. The Selection is what you see when you click the middle
14	n/a	button and drag it through some text. The Insertion is the insertion cursor
15	n/a	in the text window (which only has a background).
16	n/a	"""
17	n/a
18	n/a	from tkinter import *
19	n/a	import ColorDB
20	n/a
21	n/a	ADDTOVIEW = 'Text Window...'
22	n/a
23	n/a
24	n/a
25	n/a	class TextViewer:
26	n/a	def __init__(self, switchboard, master=None):
27	n/a	self.__sb = switchboard
28	n/a	optiondb = switchboard.optiondb()
29	n/a	root = self.__root = Toplevel(master, class_='Pynche')
30	n/a	root.protocol('WM_DELETE_WINDOW', self.withdraw)
31	n/a	root.title('Pynche Text Window')
32	n/a	root.iconname('Pynche Text Window')
33	n/a	root.bind('<Alt-q>', self.__quit)
34	n/a	root.bind('<Alt-Q>', self.__quit)
35	n/a	root.bind('<Alt-w>', self.withdraw)
36	n/a	root.bind('<Alt-W>', self.withdraw)
37	n/a	#
38	n/a	# create the text widget
39	n/a	#
40	n/a	self.__text = Text(root, relief=SUNKEN,
41	n/a	background=optiondb.get('TEXTBG', 'black'),
42	n/a	foreground=optiondb.get('TEXTFG', 'white'),
43	n/a	width=35, height=15)
44	n/a	sfg = optiondb.get('TEXT_SFG')
45	n/a	if sfg:
46	n/a	self.__text.configure(selectforeground=sfg)
47	n/a	sbg = optiondb.get('TEXT_SBG')
48	n/a	if sbg:
49	n/a	self.__text.configure(selectbackground=sbg)
50	n/a	ibg = optiondb.get('TEXT_IBG')
51	n/a	if ibg:
52	n/a	self.__text.configure(insertbackground=ibg)
53	n/a	self.__text.pack()
54	n/a	self.__text.insert(0.0, optiondb.get('TEXT', '''\
55	n/a	Insert some stuff here and play
56	n/a	with the buttons below to see
57	n/a	how the colors interact in
58	n/a	textual displays.
59	n/a
60	n/a	See how the selection can also
61	n/a	be affected by tickling the buttons
62	n/a	and choosing a color.'''))
63	n/a	insert = optiondb.get('TEXTINS')
64	n/a	if insert:
65	n/a	self.__text.mark_set(INSERT, insert)
66	n/a	try:
67	n/a	start, end = optiondb.get('TEXTSEL', (6.0, END))
68	n/a	self.__text.tag_add(SEL, start, end)
69	n/a	except ValueError:
70	n/a	# selection wasn't set
71	n/a	pass
72	n/a	self.__text.focus_set()
73	n/a	#
74	n/a	# variables
75	n/a	self.__trackp = BooleanVar()
76	n/a	self.__trackp.set(optiondb.get('TRACKP', 0))
77	n/a	self.__which = IntVar()
78	n/a	self.__which.set(optiondb.get('WHICH', 0))
79	n/a	#
80	n/a	# track toggle
81	n/a	self.__t = Checkbutton(root, text='Track color changes',
82	n/a	variable=self.__trackp,
83	n/a	relief=GROOVE,
84	n/a	command=self.__toggletrack)
85	n/a	self.__t.pack(fill=X, expand=YES)
86	n/a	frame = self.__frame = Frame(root)
87	n/a	frame.pack()
88	n/a	#
89	n/a	# labels
90	n/a	self.__labels = []
91	n/a	row = 2
92	n/a	for text in ('Text:', 'Selection:', 'Insertion:'):
93	n/a	l = Label(frame, text=text)
94	n/a	l.grid(row=row, column=0, sticky=E)
95	n/a	self.__labels.append(l)
96	n/a	row += 1
97	n/a	col = 1
98	n/a	for text in ('Foreground', 'Background'):
99	n/a	l = Label(frame, text=text)
100	n/a	l.grid(row=1, column=col)
101	n/a	self.__labels.append(l)
102	n/a	col += 1
103	n/a	#
104	n/a	# radios
105	n/a	self.__radios = []
106	n/a	for col in (1, 2):
107	n/a	for row in (2, 3, 4):
108	n/a	# there is no insertforeground option
109	n/a	if row==4 and col==1:
110	n/a	continue
111	n/a	r = Radiobutton(frame, variable=self.__which,
112	n/a	value=(row-2)*2 + col-1,
113	n/a	command=self.__set_color)
114	n/a	r.grid(row=row, column=col)
115	n/a	self.__radios.append(r)
116	n/a	self.__toggletrack()
117	n/a
118	n/a	def __quit(self, event=None):
119	n/a	self.__root.quit()
120	n/a
121	n/a	def withdraw(self, event=None):
122	n/a	self.__root.withdraw()
123	n/a
124	n/a	def deiconify(self, event=None):
125	n/a	self.__root.deiconify()
126	n/a
127	n/a	def __forceupdate(self, event=None):
128	n/a	self.__sb.update_views_current()
129	n/a
130	n/a	def __toggletrack(self, event=None):
131	n/a	if self.__trackp.get():
132	n/a	state = NORMAL
133	n/a	fg = self.__radios[0]['foreground']
134	n/a	else:
135	n/a	state = DISABLED
136	n/a	fg = self.__radios[0]['disabledforeground']
137	n/a	for r in self.__radios:
138	n/a	r.configure(state=state)
139	n/a	for l in self.__labels:
140	n/a	l.configure(foreground=fg)
141	n/a
142	n/a	def __set_color(self, event=None):
143	n/a	which = self.__which.get()
144	n/a	text = self.__text
145	n/a	if which == 0:
146	n/a	color = text['foreground']
147	n/a	elif which == 1:
148	n/a	color = text['background']
149	n/a	elif which == 2:
150	n/a	color = text['selectforeground']
151	n/a	elif which == 3:
152	n/a	color = text['selectbackground']
153	n/a	elif which == 5:
154	n/a	color = text['insertbackground']
155	n/a	try:
156	n/a	red, green, blue = ColorDB.rrggbb_to_triplet(color)
157	n/a	except ColorDB.BadColor:
158	n/a	# must have been a color name
159	n/a	red, green, blue = self.__sb.colordb().find_byname(color)
160	n/a	self.__sb.update_views(red, green, blue)
161	n/a
162	n/a	def update_yourself(self, red, green, blue):
163	n/a	if self.__trackp.get():
164	n/a	colorname = ColorDB.triplet_to_rrggbb((red, green, blue))
165	n/a	which = self.__which.get()
166	n/a	text = self.__text
167	n/a	if which == 0:
168	n/a	text.configure(foreground=colorname)
169	n/a	elif which == 1:
170	n/a	text.configure(background=colorname)
171	n/a	elif which == 2:
172	n/a	text.configure(selectforeground=colorname)
173	n/a	elif which == 3:
174	n/a	text.configure(selectbackground=colorname)
175	n/a	elif which == 5:
176	n/a	text.configure(insertbackground=colorname)
177	n/a
178	n/a	def save_options(self, optiondb):
179	n/a	optiondb['TRACKP'] = self.__trackp.get()
180	n/a	optiondb['WHICH'] = self.__which.get()
181	n/a	optiondb['TEXT'] = self.__text.get(0.0, 'end - 1c')
182	n/a	optiondb['TEXTSEL'] = self.__text.tag_ranges(SEL)[0:2]
183	n/a	optiondb['TEXTINS'] = self.__text.index(INSERT)
184	n/a	optiondb['TEXTFG'] = self.__text['foreground']
185	n/a	optiondb['TEXTBG'] = self.__text['background']
186	n/a	optiondb['TEXT_SFG'] = self.__text['selectforeground']
187	n/a	optiondb['TEXT_SBG'] = self.__text['selectbackground']
188	n/a	optiondb['TEXT_IBG'] = self.__text['insertbackground']