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annotate flax/curvecalc @ 202:97e21bc387fe

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loading and saving loading and saving fixed the hanging bug in update()
author drewp
date Wed, 16 Jun 2004 14:22:48 +0000
parents f5d3492981ab
children 3905d3c92aaa
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1 #!/usr/bin/python
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3 """
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4 todo: curveview should preserve more objects, for speed maybe
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5
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6 """
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7 from __future__ import division
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8 import xmlrpclib,time,socket,sys,textwrap,math,glob
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9 from bisect import bisect_left,bisect,bisect_right
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10 import Tkinter as tk
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11 from dispatch import dispatcher
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12 from twisted.internet import reactor,tksupport
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13 from twisted.web.xmlrpc import Proxy
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14
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15 sys.path.append("../light8")
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16 import dmxclient
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17 import Submaster
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18 from TLUtility import make_attributes_from_args
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19
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20 from zoomcontrol import Zoomcontrol
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21
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22 class Curve:
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23 """curve does not know its name. see Curveset"""
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24 points = None # x-sorted list of (x,y)
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25 def __init__(self):
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26 self.points = []
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27
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28 def load(self,filename):
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29 for line in file(filename):
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30 self.points.append(tuple([float(a) for a in line.split()]))
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31 self.points.sort()
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32 dispatcher.send("points changed",sender=self)
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33
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34 def save(self,filename):
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35 f = file(filename,'w')
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36 for p in self.points:
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37 f.write("%s %s\n" % p)
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38 f.close()
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39
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40 def eval(self,t):
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41 i = bisect_left(self.points,(t,None))-1
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42
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43 if self.points[i][0]>t:
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44 return self.points[i][1]
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45 if i>=len(self.points)-1:
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46 return self.points[i][1]
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47
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48 p1,p2 = self.points[i],self.points[i+1]
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49 frac = (t-p1[0])/(p2[0]-p1[0])
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50 y = p1[1]+(p2[1]-p1[1])*frac
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51 return y
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52
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53 __call__=eval
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54
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55 class Curveview(tk.Canvas):
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56 def __init__(self,master,curve,**kw):
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57 self.curve=curve
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58 tk.Canvas.__init__(self,master,width=10,height=10,
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59 relief='sunken',bd=1,
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60 closeenough=5,**kw)
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61 self.selected_points=[] # idx of points being dragged
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62 self.update()
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63 self.bind("<Enter>",self.focus)
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64 dispatcher.connect(self.input_time,"input time")
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65 dispatcher.connect(self.update,"zoom changed")
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66 dispatcher.connect(self.update,"points changed",sender=self.curve)
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67 self.bind("<Configure>",self.update)
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68 def screen_from_world(self,p):
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69 start,end = self.zoom
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70 ht = self.winfo_height()
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71 return (p[0]-start)/(end-start)*self.winfo_width(), (ht-5)-p[1]*(ht-10)
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72 def world_from_screen(self,x,y):
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73 start,end = self.zoom
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74 ht = self.winfo_height()
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75 return x/self.winfo_width()*(end-start)+start, ((ht-5)-y)/(ht-10)
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76
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77 def input_time(self,val):
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78 t=val
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79 pts = self.screen_from_world((val,0))+self.screen_from_world((val,1))
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80 self.delete('timecursor')
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81 self.create_line(*pts,**dict(width=2,fill='red',tags=('timecursor',)))
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82 def update(self,*args):
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83
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84 self.zoom = dispatcher.send("zoom area")[0][1]
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85 cp = self.curve.points
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86
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87 visible_x = (self.world_from_screen(0,0)[0],
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88 self.world_from_screen(self.winfo_width(),0)[0])
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89
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90 visleftidx = max(0,bisect_left(cp,(visible_x[0],None))-1)
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91 visrightidx = min(len(cp)-1,bisect_left(cp,(visible_x[1],None))+1)
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92
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93 visible_points = cp[visleftidx:visrightidx+1]
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94
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95 self.delete('curve')
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96 linepts=[]
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97 for p in visible_points:
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98 linepts.extend(self.screen_from_world(p))
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99 if not linepts:
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100 return
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101 line = self.create_line(*linepts,**{'tags':'curve'})
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102
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103 # canvas doesnt have keyboard focus, so i can't easily change the
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104 # cursor when ctrl is pressed
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105 # def curs(ev):
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106 # print ev.state
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107 # self.bind("<KeyPress>",curs)
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108 # self.bind("<KeyRelease-Control_L>",lambda ev: curs(0))
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109 self.tag_bind(line,"<Control-ButtonPress-1>",self.newpoint)
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110
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111 self.dots = {} # idx : canvas rectangle
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112
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113 if len(visible_points)<50:
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114 for i,p in enumerate(visible_points):
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115 rad=3
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116 p = self.screen_from_world(p)
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117 dot = self.create_rectangle(p[0]-rad,p[1]-rad,p[0]+rad,p[1]+rad,
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118 outline='black',fill='blue',
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119 tags=('curve','point'))
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120 self.tag_bind(dot,"<ButtonPress-1>",
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121 lambda ev,i=i: self.dotpress(ev,i))
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122 self.bind("<Motion>",
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123 lambda ev,i=i: self.dotmotion(ev,i))
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124 self.bind("<ButtonRelease-1>",
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125 lambda ev,i=i: self.dotrelease(ev,i))
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126 self.dots[i]=dot
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127
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128 self.highlight_selected_dots()
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129
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130 def newpoint(self,ev):
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131 cp = self.curve.points
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132
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133 p = self.world_from_screen(ev.x,ev.y)
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134 i = bisect(cp,(p[0],None))
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135
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136 self.unselect()
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137 cp.insert(i,p)
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138 self.update()
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139
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140 def highlight_selected_dots(self):
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141 for i,d in self.dots.items():
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142 if i in self.selected_points:
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143 self.itemconfigure(d,fill='red')
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144 else:
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145 self.itemconfigure(d,fill='blue')
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146
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147 def dotpress(self,ev,dotidx):
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148 self.selected_points=[dotidx]
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149 self.highlight_selected_dots()
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150
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151 def dotmotion(self,ev,dotidx):
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152 cp = self.curve.points
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153
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154 moved=0
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155 for idx in self.selected_points:
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156 x,y = self.world_from_screen(ev.x,ev.y)
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157 y = max(0,min(1,y))
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158 if idx>0 and x<=cp[idx-1][0]:
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159 continue
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160 if idx<len(cp)-1 and x>=cp[idx+1][0]:
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161 continue
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162 moved=1
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163 cp[idx] = (x,y)
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164 if moved:
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165 self.update()
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166 def unselect(self):
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167 self.selected_points=[]
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168 self.highlight_selected_dots()
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169
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170 def dotrelease(self,ev,dotidx):
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171 self.unselect()
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172
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173 class Curveset:
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174 curves = None # curvename : curve
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175 def __init__(self):
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176 self.curves = {}
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177 def load(self,basename):
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178 """find all files that look like basename-curvename and add
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179 curves with their contents"""
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180 for filename in glob.glob("%s-*"%basename):
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181 curvename = filename[filename.rfind('-')+1:]
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182 c=Curve()
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183 c.load(filename)
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184 self.add_curve(curvename,c)
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185 def save(self,basename):
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186 """writes a file for each curve with a name
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187 like basename-curvename"""
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188 for name,cur in self.curves.items():
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189 cur.save("%s-%s" % (basename,name))
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190 def add_curve(self,name,curve):
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191 self.curves[name] = curve
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192 dispatcher.send("add_curve",sender=self,name=name)
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193 def globalsdict(self):
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194 return self.curves.copy()
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195
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196 class Curvesetview(tk.Frame):
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197 curves = None # curvename : Curveview
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198 def __init__(self,master,curveset,**kw):
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199 self.curves = {}
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200 self.curveset = curveset
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201 tk.Frame.__init__(self,master,**kw)
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202 dispatcher.connect(self.add_curve,"add_curve",sender=self.curveset)
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203 def add_curve(self,name):
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204 f = tk.Frame(self,relief='raised',bd=1)
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205 f.pack(side='top',fill='both',exp=1)
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206 tk.Label(f,text="curve %r"%name).pack(side='left')
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207 cv = Curveview(f,self.curveset.curves[name])
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208 cv.pack(side='right',fill='both',exp=1)
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209 self.curves[name] = cv
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210
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211 class Music:
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212 def __init__(self):
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213 self.player=None # xmlrpc Proxy to player
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214 self.recenttime=0
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215
0
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216 def current_time(self):
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217 """return deferred which gets called with the current time"""
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218 if self.player is None:
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219 self.player = Proxy("http://spot:8040")
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220 d = self.player.callRemote("songlength")
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221 d.addCallback(lambda l: dispatcher.send("max time",maxtime=l))
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222 d = self.player.callRemote("songname")
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223 d.addCallback(lambda n: dispatcher.send("songname",name=n))
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224 d = self.player.callRemote('gettime')
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225 def sendtime(t):
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226 dispatcher.send("input time",val=t)
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227 return t # pass along to the real receiver
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228 def error(e):
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229 pass#self.player=None
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230 d.addCallback(sendtime)
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231 return d
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232
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233 class Subexpr:
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234 curveset = None
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235 def __init__(self,curveset):
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236 self.curveset = curveset
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237 self.lasteval = None
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238 self.expr=""
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239 def eval(self,t):
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240 if self.expr=="":
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241 dispatcher.send("expr_error",sender=self,exc="no expr, using 0")
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242 return 0
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243 glo = self.curveset.globalsdict()
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244 glo['t'] = t
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245 try:
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246 self.lasteval = eval(self.expr,glo)
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247 except Exception,e:
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248 dispatcher.send("expr_error",sender=self,exc=e)
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249 else:
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250 dispatcher.send("expr_error",sender=self,exc="no errors")
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251 return self.lasteval
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252
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253 def expr():
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254 doc = "python expression for level as a function of t, using curves"
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255 def fget(self):
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256 return self._expr
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257 def fset(self, value):
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258 self._expr = value
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259 dispatcher("expr_changed",sender=self)
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260 return locals()
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261 expr = property(**expr())
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262
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263 class Subexprview(tk.Frame):
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264 def __init__(self,master,se,**kw):
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265 self.subexpr=se
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266 tk.Frame.__init__(self,master,**kw)
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267 self.evar = tk.StringVar()
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268 e = self.ent = tk.Entry(master,textvariable=self.evar)
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269 e.pack(side='left',fill='both',exp=1)
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270 self.expr_changed()
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271 self.evar.trace_variable('w',self.evar_changed)
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272 dispatcher.connect(self.expr_changed,"expr_changed",
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273 sender=self.subexpr)
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274 self.error = tk.Label(master)
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275 self.error.pack(side='left')
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276 dispatcher.connect(lambda exc: self.error.config(text=str(exc)),
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277 "expr_error",sender=self.subexpr,weak=0)
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278 def expr_changed(self):
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279 if self.subexpr.expr!=self.evar.get():
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280 self.evar.set(self.subexpr.expr)
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281 def evar_changed(self,*args):
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282 self.subexpr.expr = self.evar.get()
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283
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284 class Subterm:
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285 """one Submaster and its Subexpr"""
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286 def scaled(self,t):
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287 return self.sub * self.subexpr.eval(t)
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288
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289 class Subtermview(tk.Frame):
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290 def __init__(self,master,st,**kw):
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291 self.subterm = st
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292 tk.Frame.__init__(self,master,bd=1,relief='raised',**kw)
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293 tk.Label(self,text="sub %r" % self.subterm.sub.name).pack(side='left')
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294 sev=Subexprview(self,self.subterm.subexpr)
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295 sev.pack(side='left',fill='both',exp=1)
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296
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297 class Output:
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298 def __init__(self,subterms):
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299 make_attributes_from_args('subterms')
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300 def send_dmx(self,t):
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301
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302 scaledsubs=[]
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303 for st in self.subterms:
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304 scl = st.scaled(t)
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305 scaledsubs.append(scl)
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306 out = Submaster.sub_maxes(*scaledsubs)
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307 dispatcher.send("output levels",val=out.get_levels())
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308 dmxclient.outputlevels(out.get_dmx_list(),twisted=1)
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309
202
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310 def create_status_lines(master):
197
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311 for signame,textfilter in [
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312 ('input time',lambda t: "%.2fs"%t),
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313 ('output levels',
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314 lambda levels: textwrap.fill("; ".join(["%s:%.2f"%(n,v)
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315 for n,v in
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316 levels.items()]),70)),
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317 ('update period',lambda t: "%.1fms"%(t*1000)),
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318 ]:
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319 l = tk.Label(master,anchor='w',justify='left')
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320 l.pack(side='top',fill='x')
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321 dispatcher.connect(lambda val,l=l,sn=signame,tf=textfilter:
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322 l.config(text=sn+": "+tf(val)),
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323 signame,weak=0)
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324
202
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325 def savesubterms(filename,subterms):
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326 f = file(filename,'w')
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327 for st in subterms:
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328 f.write("%s %s\n" % (st.sub.name,st.subexpr.expr))
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329 f.close()
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330
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331 def save(song,subterms,curveset):
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332 savesubterms("subterms/"+song,subterms)
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333 curveset.save(basename="curves/"+song)
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334
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335 #######################################################################
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336 root=tk.Tk()
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337 root.wm_geometry("790x930")
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338 #root.tk_focusFollowsMouse()
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339
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340 music=Music()
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341
197
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342 zc = Zoomcontrol(root)
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343 zc.pack(side='top',fill='x')
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344
202
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345 curveset = Curveset()
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346 csv = Curvesetview(root,curveset)
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347 csv.pack(side='top',fill='both',exp=1)
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348
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349 song = "16mix.wav"
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350
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351 curveset.load(basename="curves/"+song)
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352
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353 subterms = []
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354 for line in file("subterms/"+song):
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355 subname,expr = line.strip().split(" ",1)
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356
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357 term = Subterm()
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358
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359 sexpr = Subexpr(curveset)
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360 sexpr.expr = expr
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361
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362 term.sub = Submaster.Submaster(subname)
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363 term.subexpr = sexpr
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364 subterms.append(term)
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365
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366 stv=Subtermview(root,term)
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367 stv.pack(side='top',fill='x')
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368
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369 out = Output(subterms)
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370
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371 #save(song,subterms,curveset)
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372
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373 create_status_lines(root)
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374
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375 recent_t=[]
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376 later = None
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377 def update():
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378 global later
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379 d = music.current_time()
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380 d.addCallback(update2)
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381 d.addErrback(updateerr)
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382 def updateerr(e):
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383 global later
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384 print "err",e
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385 if later and not later.cancelled and not later.called: later.cancel()
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386 later = reactor.callLater(1,update)
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387 def update2(t):
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388 global recent_t,later
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389
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390 if later and not later.cancelled and not later.called: later.cancel()
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391 later = reactor.callLater(.01,update)
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392
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393 recent_t = recent_t[-50:]+[t]
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394 period = (recent_t[-1]-recent_t[0])/len(recent_t)
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395 dispatcher.send("update period",val=period)
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396 out.send_dmx(t)
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397 update()
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398
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399 tksupport.install(root,ms=10)
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400 if 0:
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401 sys.path.append("/home/drewp/projects/editor/pour")
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402 from utils import runstats
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403 runstats("reactor.run()")
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404 else:
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405 reactor.run()