Python code coverage for Lib/plat-irix5/panel.py

#	count	content
1	n/a	# Module 'panel'
2	n/a	#
3	n/a	# Support for the Panel library.
4	n/a	# Uses built-in module 'pnl'.
5	n/a	# Applications should use 'panel.function' instead of 'pnl.function';
6	n/a	# most 'pnl' functions are transparently exported by 'panel',
7	n/a	# but dopanel() is overridden and you have to use this version
8	n/a	# if you want to use callbacks.
9	n/a	from warnings import warnpy3k
10	n/a	warnpy3k("the panel module has been removed in Python 3.0", stacklevel=2)
11	n/a	del warnpy3k
12	n/a
13	n/a
14	n/a	import pnl
15	n/a
16	n/a
17	n/a	debug = 0
18	n/a
19	n/a
20	n/a	# Test if an object is a list.
21	n/a	#
22	n/a	def is_list(x):
23	n/a	return type(x) == type([])
24	n/a
25	n/a
26	n/a	# Reverse a list.
27	n/a	#
28	n/a	def reverse(list):
29	n/a	res = []
30	n/a	for item in list:
31	n/a	res.insert(0, item)
32	n/a	return res
33	n/a
34	n/a
35	n/a	# Get an attribute of a list, which may itself be another list.
36	n/a	# Don't use 'prop' for name.
37	n/a	#
38	n/a	def getattrlist(list, name):
39	n/a	for item in list:
40	n/a	if item and is_list(item) and item[0] == name:
41	n/a	return item[1:]
42	n/a	return []
43	n/a
44	n/a
45	n/a	# Get a property of a list, which may itself be another list.
46	n/a	#
47	n/a	def getproplist(list, name):
48	n/a	for item in list:
49	n/a	if item and is_list(item) and item[0] == 'prop':
50	n/a	if len(item) > 1 and item[1] == name:
51	n/a	return item[2:]
52	n/a	return []
53	n/a
54	n/a
55	n/a	# Test if an actuator description contains the property 'end-of-group'
56	n/a	#
57	n/a	def is_endgroup(list):
58	n/a	x = getproplist(list, 'end-of-group')
59	n/a	return (x and x[0] == '#t')
60	n/a
61	n/a
62	n/a	# Neatly display an actuator definition given as S-expression
63	n/a	# the prefix string is printed before each line.
64	n/a	#
65	n/a	def show_actuator(prefix, a):
66	n/a	for item in a:
67	n/a	if not is_list(item):
68	n/a	print prefix, item
69	n/a	elif item and item[0] == 'al':
70	n/a	print prefix, 'Subactuator list:'
71	n/a	for a in item[1:]:
72	n/a	show_actuator(prefix + ' ', a)
73	n/a	elif len(item) == 2:
74	n/a	print prefix, item[0], '=>', item[1]
75	n/a	elif len(item) == 3 and item[0] == 'prop':
76	n/a	print prefix, 'Prop', item[1], '=>',
77	n/a	print item[2]
78	n/a	else:
79	n/a	print prefix, '?', item
80	n/a
81	n/a
82	n/a	# Neatly display a panel.
83	n/a	#
84	n/a	def show_panel(prefix, p):
85	n/a	for item in p:
86	n/a	if not is_list(item):
87	n/a	print prefix, item
88	n/a	elif item and item[0] == 'al':
89	n/a	print prefix, 'Actuator list:'
90	n/a	for a in item[1:]:
91	n/a	show_actuator(prefix + ' ', a)
92	n/a	elif len(item) == 2:
93	n/a	print prefix, item[0], '=>', item[1]
94	n/a	elif len(item) == 3 and item[0] == 'prop':
95	n/a	print prefix, 'Prop', item[1], '=>',
96	n/a	print item[2]
97	n/a	else:
98	n/a	print prefix, '?', item
99	n/a
100	n/a
101	n/a	# Exception raised by build_actuator or build_panel.
102	n/a	#
103	n/a	panel_error = 'panel error'
104	n/a
105	n/a
106	n/a	# Dummy callback used to initialize the callbacks.
107	n/a	#
108	n/a	def dummy_callback(arg):
109	n/a	pass
110	n/a
111	n/a
112	n/a	# Assign attributes to members of the target.
113	n/a	# Attribute names in exclist are ignored.
114	n/a	# The member name is the attribute name prefixed with the prefix.
115	n/a	#
116	n/a	def assign_members(target, attrlist, exclist, prefix):
117	n/a	for item in attrlist:
118	n/a	if is_list(item) and len(item) == 2 and item[0] not in exclist:
119	n/a	name, value = item[0], item[1]
120	n/a	ok = 1
121	n/a	if value[0] in '-0123456789':
122	n/a	value = eval(value)
123	n/a	elif value[0] == '"':
124	n/a	value = value[1:-1]
125	n/a	elif value == 'move-then-resize':
126	n/a	# Strange default set by Panel Editor...
127	n/a	ok = 0
128	n/a	else:
129	n/a	print 'unknown value', value, 'for', name
130	n/a	ok = 0
131	n/a	if ok:
132	n/a	lhs = 'target.' + prefix + name
133	n/a	stmt = lhs + '=' + repr(value)
134	n/a	if debug: print 'exec', stmt
135	n/a	try:
136	n/a	exec stmt + '\n'
137	n/a	except KeyboardInterrupt: # Don't catch this!
138	n/a	raise KeyboardInterrupt
139	n/a	except:
140	n/a	print 'assign failed:', stmt
141	n/a
142	n/a
143	n/a	# Build a real actuator from an actuator description.
144	n/a	# Return a pair (actuator, name).
145	n/a	#
146	n/a	def build_actuator(descr):
147	n/a	namelist = getattrlist(descr, 'name')
148	n/a	if namelist:
149	n/a	# Assume it is a string
150	n/a	actuatorname = namelist[0][1:-1]
151	n/a	else:
152	n/a	actuatorname = ''
153	n/a	type = descr[0]
154	n/a	if type[:4] == 'pnl_': type = type[4:]
155	n/a	act = pnl.mkact(type)
156	n/a	act.downfunc = act.activefunc = act.upfunc = dummy_callback
157	n/a	#
158	n/a	assign_members(act, descr[1:], ['al', 'data', 'name'], '')
159	n/a	#
160	n/a	# Treat actuator-specific data
161	n/a	#
162	n/a	datalist = getattrlist(descr, 'data')
163	n/a	prefix = ''
164	n/a	if type[-4:] == 'puck':
165	n/a	prefix = 'puck_'
166	n/a	elif type == 'mouse':
167	n/a	prefix = 'mouse_'
168	n/a	assign_members(act, datalist, [], prefix)
169	n/a	#
170	n/a	return act, actuatorname
171	n/a
172	n/a
173	n/a	# Build all sub-actuators and add them to the super-actuator.
174	n/a	# The super-actuator must already have been added to the panel.
175	n/a	# Sub-actuators with defined names are added as members to the panel
176	n/a	# so they can be referenced as p.name.
177	n/a	#
178	n/a	# Note: I have no idea how panel.endgroup() works when applied
179	n/a	# to a sub-actuator.
180	n/a	#
181	n/a	def build_subactuators(panel, super_act, al):
182	n/a	#
183	n/a	# This is nearly the same loop as below in build_panel(),
184	n/a	# except a call is made to addsubact() instead of addact().
185	n/a	#
186	n/a	for a in al:
187	n/a	act, name = build_actuator(a)
188	n/a	act.addsubact(super_act)
189	n/a	if name:
190	n/a	stmt = 'panel.' + name + ' = act'
191	n/a	if debug: print 'exec', stmt
192	n/a	exec stmt + '\n'
193	n/a	if is_endgroup(a):
194	n/a	panel.endgroup()
195	n/a	sub_al = getattrlist(a, 'al')
196	n/a	if sub_al:
197	n/a	build_subactuators(panel, act, sub_al)
198	n/a	#
199	n/a	# Fix the actuator to which whe just added subactuators.
200	n/a	# This can't hurt (I hope) and is needed for the scroll actuator.
201	n/a	#
202	n/a	super_act.fixact()
203	n/a
204	n/a
205	n/a	# Build a real panel from a panel definition.
206	n/a	# Return a panel object p, where for each named actuator a, p.name is a
207	n/a	# reference to a.
208	n/a	#
209	n/a	def build_panel(descr):
210	n/a	#
211	n/a	# Sanity check
212	n/a	#
213	n/a	if (not descr) or descr[0] != 'panel':
214	n/a	raise panel_error, 'panel description must start with "panel"'
215	n/a	#
216	n/a	if debug: show_panel('', descr)
217	n/a	#
218	n/a	# Create an empty panel
219	n/a	#
220	n/a	panel = pnl.mkpanel()
221	n/a	#
222	n/a	# Assign panel attributes
223	n/a	#
224	n/a	assign_members(panel, descr[1:], ['al'], '')
225	n/a	#
226	n/a	# Look for actuator list
227	n/a	#
228	n/a	al = getattrlist(descr, 'al')
229	n/a	#
230	n/a	# The order in which actuators are created is important
231	n/a	# because of the endgroup() operator.
232	n/a	# Unfortunately the Panel Editor outputs the actuator list
233	n/a	# in reverse order, so we reverse it here.
234	n/a	#
235	n/a	al = reverse(al)
236	n/a	#
237	n/a	for a in al:
238	n/a	act, name = build_actuator(a)
239	n/a	act.addact(panel)
240	n/a	if name:
241	n/a	stmt = 'panel.' + name + ' = act'
242	n/a	exec stmt + '\n'
243	n/a	if is_endgroup(a):
244	n/a	panel.endgroup()
245	n/a	sub_al = getattrlist(a, 'al')
246	n/a	if sub_al:
247	n/a	build_subactuators(panel, act, sub_al)
248	n/a	#
249	n/a	return panel
250	n/a
251	n/a
252	n/a	# Wrapper around pnl.dopanel() which calls call-back functions.
253	n/a	#
254	n/a	def my_dopanel():
255	n/a	# Extract only the first 4 elements to allow for future expansion
256	n/a	a, down, active, up = pnl.dopanel()[:4]
257	n/a	if down:
258	n/a	down.downfunc(down)
259	n/a	if active:
260	n/a	active.activefunc(active)
261	n/a	if up:
262	n/a	up.upfunc(up)
263	n/a	return a
264	n/a
265	n/a
266	n/a	# Create one or more panels from a description file (S-expressions)
267	n/a	# generated by the Panel Editor.
268	n/a	#
269	n/a	def defpanellist(file):
270	n/a	import panelparser
271	n/a	descrlist = panelparser.parse_file(open(file, 'r'))
272	n/a	panellist = []
273	n/a	for descr in descrlist:
274	n/a	panellist.append(build_panel(descr))
275	n/a	return panellist
276	n/a
277	n/a
278	n/a	# Import everything from built-in method pnl, so the user can always
279	n/a	# use panel.foo() instead of pnl.foo().
280	n/a	# This gives no performance penalty once this module is imported.
281	n/a	#
282	n/a	from pnl import * # for export
283	n/a
284	n/a	dopanel = my_dopanel # override pnl.dopanel