Mercurial > code > home > repos > light9

comparison flax/Submaster.py @ 0:45b12307c695

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Initial revision
author drewp
date Wed, 03 Jul 2002 09:37:57 +0000
parents
children 5670f66845ce
comparison
equal deleted inserted replaced
-1:000000000000 0:45b12307c695
1 from __future__ import division
2 from TLUtility import dict_scale, dict_max
3
4 import sys
5 sys.path.append('../light8')
6
7 import Patch
8
9 class Submaster:
10 "Contain a dictionary of levels, but you didn't need to know that"
11 def __init__(self, name, leveldict=None, temporary=0):
12 self.name = name
13 self.temporary = temporary
14 if leveldict:
15 self.levels = leveldict
16 else:
17 self.levels = {}
18 self.reload()
19 def reload(self):
20 if self.temporary:
21 return
22 try:
23 self.levels.clear()
24 subfile = file("subs/%s" % self.name)
25 for line in subfile.readlines():
26 if not line.strip(): # if line is only whitespace
27 continue # "did i say newspace?"
28
29 try:
30 name, val = line.split(':')
31 name = name.strip()
32 self.levels[name] = float(val)
33 except ValueError:
34 print "(%s) Error with this line: %s" % (self.name,
35 line[:-1])
36 except IOError:
37 print "Can't read file for sub: %s" % self.name
38 def save(self):
39 if self.temporary:
40 return
41
42 subfile = file("subs/%s" % self.name, 'w')
43 names = self.levels.keys()
44 names.sort()
45 for name in names:
46 val = self.levels[name]
47 subfile.write("%s : %s\n" % (name, val))
48 def set_level(self, channelname, level, save=1):
49 self.levels[Patch.resolve_name(channelname)] = level
50 if save:
51 self.save()
52 def set_all_levels(self, leveldict):
53 self.levels.clear()
54 for k, v in leveldict.items():
55 self.set_level(k, v, save=0)
56 self.save()
57 def get_levels(self):
58 return self.levels
59 def __mul__(self, scalar):
60 return Submaster("%s*%s" % (self.name, scalar),
61 dict_scale(self.levels, scalar), temporary=1)
62 __rmul__ = __mul__
63 def max(self, *othersubs):
64 return sub_maxes(self, *othersubs)
65 def __repr__(self):
66 levels = ' '.join(["%s:%.2f" % item for item in self.levels.items()])
67 return "<'%s': [%s]>" % (self.name, levels)
68 def get_dmx_list(self):
69 leveldict = self.get_levels() # gets levels of sub contents
70
71 levels = [0] * 68
72 for k, v in leveldict.items():
73 dmxchan = Patch.get_dmx_channel(k) - 1
74 levels[dmxchan] = max(v, levels[dmxchan])
75
76 return levels
77 def normalize_patch_names(self):
78 """Use only the primary patch names."""
79 # possibly busted -- don't use unless you know what you're doing
80 self.set_all_levels(self.levels.copy())
81 def get_normalized_copy(self):
82 """Get a copy of this sumbaster that only uses the primary patch
83 names. The levels will be the same."""
84 newsub = Submaster("%s (normalized)" % self.name, temporary=1)
85 newsub.set_all_levels(self.levels)
86 return newsub
87 def crossfade(self, othersub, amount):
88 """Returns a new sub that is a crossfade between this sub and
89 another submaster.
90
91 NOTE: You should only crossfade between normalized submasters."""
92 otherlevels = othersub.get_levels()
93 keys_set = {}
94 for k in self.levels.keys() + otherlevels.keys():
95 keys_set[k] = 1
96 all_keys = keys_set.keys()
97
98 xfaded_sub = Submaster("xfade", temporary=1)
99 for k in all_keys:
100 xfaded_sub.set_level(k,
101 linear_fade(self.levels.get(k, 0),
102 otherlevels.get(k, 0),
103 amount))
104
105 return xfaded_sub
106
107 def linear_fade(start, end, amount):
108 """Fades between two floats by an amount. amount is a float between
109 0 and 1. If amount is 0, it will return the start value. If it is 1,
110 the end value will be returned."""
111 level = start + (amount * (end - start))
112 return level
113
114 def sub_maxes(*subs):
115 return Submaster("max(%r)" % (subs,),
116 dict_max(*[sub.levels for sub in subs]), temporary=1)
117
118 class Submasters:
119 "Collection o' Submaster objects"
120 def __init__(self):
121 self.submasters = {}
122
123 import os
124 files = os.listdir('subs')
125
126 for filename in files:
127 # we don't want these files
128 if filename.startswith('.') or filename.endswith('~') or \
129 filename.startswith('CVS'):
130 continue
131 self.submasters[filename] = Submaster(filename)
132 def get_all_subs(self):
133 "All Submaster objects"
134 l = self.submasters.items()
135 l.sort()
136 l = [x[1] for x in l]
137 songs = []
138 notsongs = []
139 for s in l:
140 if s.name.startswith('song'):
141 songs.append(s)
142 else:
143 notsongs.append(s)
144 combined = notsongs + songs
145 return combined
146 def get_sub_by_name(self, name):
147 "Makes a new sub if there isn't one."
148 return self.submasters.get(name, Submaster(name))
149 __getitem__ = get_sub_by_name
150
151 if __name__ == "__main__":
152 Patch.reload_data()
153 s = Submasters()
154 print s.get_all_subs()
155 if 0: # turn this on to normalize all subs
156 for sub in s.get_all_subs():
157 print "before", sub
158 sub.normalize_patch_names()
159 sub.save()
160 print "after", sub