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annotate flax/curvecalc @ 198:238eede02bf9

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supports using twisted/deferreds for the xmlrpc connection
author drewp
date Wed, 16 Jun 2004 13:01:18 +0000
parents ba2677823b35
children f5d3492981ab
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1 #!/usr/bin/python
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2
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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
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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
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21 class Curve:
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22 """curve does not know its name. see Curveset"""
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23 points = None # x-sorted list of (x,y)
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24 def __init__(self):
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25 self.points = []
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26
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27 self.points = [(0,0),(1,1),(9,1),(10,0)]
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28 for x in range(11,500):
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29 self.points.append((x,.5))
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30
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31 def eval(self,t):
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32 i = bisect_left(self.points,(t,None))-1
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33
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34 if self.points[i][0]>t:
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35 return self.points[i][1]
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36 if i>=len(self.points)-1:
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37 return self.points[i][1]
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38
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39 p1,p2 = self.points[i],self.points[i+1]
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40 frac = (t-p1[0])/(p2[0]-p1[0])
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41 y = p1[1]+(p2[1]-p1[1])*frac
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42 return y
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43
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44 __call__=eval
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45
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46 class Curveview(tk.Canvas):
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47 def __init__(self,master,curve,**kw):
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48 self.curve=curve
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49 tk.Canvas.__init__(self,master,width=10,height=10,
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50 relief='sunken',bd=1,
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51 closeenough=5,**kw)
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52 self.selected_points=[] # idx of points being dragged
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53 self.update()
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54 self.bind("<Enter>",self.focus)
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55 dispatcher.connect(self.input_time,"input time")
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56 dispatcher.connect(self.update,"zoom changed")
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57 self.bind("<Configure>",self.update)
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58 def screen_from_world(self,p):
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59 start,end = self.zoom
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60 ht = self.winfo_height()
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61 return (p[0]-start)/(end-start)*self.winfo_width(), (ht-5)-p[1]*(ht-10)
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62 def world_from_screen(self,x,y):
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63 start,end = self.zoom
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64 ht = self.winfo_height()
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65 return x/self.winfo_width()*(end-start)+start, ((ht-5)-y)/(ht-10)
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66
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67 def input_time(self,val):
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68 t=val
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69 pts = self.screen_from_world((val,0))+self.screen_from_world((val,1))
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70 self.delete('timecursor')
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71 self.create_line(*pts,**dict(width=2,fill='red',tags=('timecursor',)))
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72 def update(self,*args):
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73
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74 self.zoom = dispatcher.send("zoom area")[0][1]
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75 cp = self.curve.points
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76
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77 visible_x = (self.world_from_screen(0,0)[0],
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78 self.world_from_screen(self.winfo_width(),0)[0])
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79
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80 visleftidx = max(0,bisect_left(cp,(visible_x[0],None))-1)
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81 visrightidx = min(len(cp)-1,bisect_left(cp,(visible_x[1],None))+1)
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82
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83 visible_points = cp[visleftidx:visrightidx]
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84
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85 self.delete('curve')
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86 linepts=[]
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87 for p in visible_points:
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88 linepts.extend(self.screen_from_world(p))
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89 line = self.create_line(*linepts,**{'tags':'curve'})
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90
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91 # canvas doesnt have keyboard focus, so i can't easily change the
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92 # cursor when ctrl is pressed
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93 # def curs(ev):
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94 # print ev.state
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95 # self.bind("<KeyPress>",curs)
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96 # self.bind("<KeyRelease-Control_L>",lambda ev: curs(0))
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97 self.tag_bind(line,"<Control-ButtonPress-1>",self.newpoint)
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98
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99 self.dots = {} # idx : canvas rectangle
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100
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101 if len(visible_points)<50: ###self.zoom[1]-self.zoom[0]<30 or len(visible_points)<:
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102 for i,p in enumerate(visible_points):
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103 rad=3
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104 p = self.screen_from_world(p)
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105 # if p[0]-prevx<10:
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106 # # too close- skip the dots
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107 # continue
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108 dot = self.create_rectangle(p[0]-rad,p[1]-rad,p[0]+rad,p[1]+rad,
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109 outline='black',fill='blue',
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110 tags=('curve','point'))
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111 self.tag_bind(dot,"<ButtonPress-1>",
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112 lambda ev,i=i: self.dotpress(ev,i))
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113 self.bind("<Motion>",
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114 lambda ev,i=i: self.dotmotion(ev,i))
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115 self.bind("<ButtonRelease-1>",
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116 lambda ev,i=i: self.dotrelease(ev,i))
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117 self.dots[i]=dot
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118
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119 self.highlight_selected_dots()
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120
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121 def newpoint(self,ev):
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122 cp = self.curve.points
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123
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124 p = self.world_from_screen(ev.x,ev.y)
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125 i = bisect(cp,(p[0],None))
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126
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127 self.unselect()
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128 cp.insert(i,p)
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129 self.update()
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130
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131 def highlight_selected_dots(self):
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132 for i,d in self.dots.items():
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133 if i in self.selected_points:
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134 self.itemconfigure(d,fill='red')
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135 else:
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136 self.itemconfigure(d,fill='blue')
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137
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138 def dotpress(self,ev,dotidx):
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139 self.selected_points=[dotidx]
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140 self.highlight_selected_dots()
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141
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142 def dotmotion(self,ev,dotidx):
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143 cp = self.curve.points
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144
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145 moved=0
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146 for idx in self.selected_points:
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147 newp = self.world_from_screen(ev.x,ev.y)
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148 if idx>0 and newp[0]<=cp[idx-1][0]:
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149 continue
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150 if idx<len(cp)-1 and newp[0]>=cp[idx+1][0]:
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151 continue
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152 moved=1
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153 cp[idx] = newp
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154 if moved:
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155 self.update()
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156 def unselect(self):
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157 self.selected_points=[]
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158 self.highlight_selected_dots()
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159
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160 def dotrelease(self,ev,dotidx):
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161 self.unselect()
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162
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163 class Curveset:
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164 curves = None # curvename : curve
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165 def __init__(self):
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166 self.curves = {}
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167 def add_curve(self,name,curve):
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168 self.curves[name] = curve
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169 dispatcher.send("add_curve",sender=self,name=name)
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170 def globalsdict(self):
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171 return self.curves.copy()
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172
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173 class Curvesetview(tk.Frame):
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174 curves = None # curvename : Curveview
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175 def __init__(self,master,curveset,**kw):
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176 self.curves = {}
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177 self.curveset = curveset
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178 tk.Frame.__init__(self,master,**kw)
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179 dispatcher.connect(self.add_curve,"add_curve",sender=self.curveset)
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180 def add_curve(self,name):
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181 f = tk.Frame(self,relief='raised',bd=1)
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182 f.pack(side='top',fill='both',exp=1)
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183 tk.Label(f,text="curve %r"%name).pack(side='left')
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184 cv = Curveview(f,self.curveset.curves[name])
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185 cv.pack(side='right',fill='both',exp=1)
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186 self.curves[name] = cv
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187
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188 class Music:
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189 def __init__(self):
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190 self.player=None # xmlrpc Proxy to player
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191 self.recenttime=0
197
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192
0
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193 def current_time(self):
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194 """return deferred which gets called with the current time"""
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195 if self.player is None:
197
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196 self.player = Proxy("http://spot:8040")
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197 d = self.player.callRemote("songlength")
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198 def sendmax(l):
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199 dispatcher.send("max time",maxtime=l)
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200 d.addCallback(sendmax)
0
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201 d = self.player.callRemote('gettime')
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202 def sendtime(t):
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203 dispatcher.send("input time",val=t)
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204 return t # pass along to the real receiver
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205 def error(e):
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206 pass#self.player=None
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207 d.addCallback(sendtime)
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208 return d
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209
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210 class Subexpr:
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211 curveset = None
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212 def __init__(self,curveset):
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213 self.curveset = curveset
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214 self.lasteval = None
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215 self.expr=""
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216 def eval(self,t):
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217 if self.expr=="":
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218 dispatcher.send("expr_error",sender=self,exc="no expr, using 0")
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219 return 0
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220 glo = self.curveset.globalsdict()
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221 glo['t'] = t
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222 try:
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223 self.lasteval = eval(self.expr,glo)
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224 except Exception,e:
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225 dispatcher.send("expr_error",sender=self,exc=e)
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226 else:
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227 dispatcher.send("expr_error",sender=self,exc="no errors")
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228 return self.lasteval
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229
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230 def expr():
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231 doc = "python expression for level as a function of t, using curves"
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232 def fget(self):
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233 return self._expr
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234 def fset(self, value):
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235 self._expr = value
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236 dispatcher("expr_changed",sender=self)
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237 return locals()
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238 expr = property(**expr())
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239
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240 class Subexprview(tk.Frame):
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241 def __init__(self,master,se,**kw):
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242 self.subexpr=se
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243 tk.Frame.__init__(self,master,**kw)
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244 self.evar = tk.StringVar()
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245 e = self.ent = tk.Entry(master,textvariable=self.evar)
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246 e.pack(side='left',fill='both',exp=1)
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247 self.expr_changed()
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248 self.evar.trace_variable('w',self.evar_changed)
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249 dispatcher.connect(self.expr_changed,"expr_changed",
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250 sender=self.subexpr)
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251 self.error = tk.Label(master)
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252 self.error.pack(side='left')
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253 dispatcher.connect(lambda exc: self.error.config(text=str(exc)),
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254 "expr_error",sender=self.subexpr,weak=0)
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255 def expr_changed(self):
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256 if self.subexpr.expr!=self.evar.get():
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257 self.evar.set(self.subexpr.expr)
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258 def evar_changed(self,*args):
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259 self.subexpr.expr = self.evar.get()
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260
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261 class Subterm:
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262 """one Submaster and its Subexpr"""
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263 def scaled(self,t):
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264 return self.sub * self.subexpr.eval(t)
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265
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266 class Subtermview(tk.Frame):
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267 def __init__(self,master,st,**kw):
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268 self.subterm = st
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269 tk.Frame.__init__(self,master,bd=1,relief='raised',**kw)
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270 tk.Label(self,text="sub %r" % self.subterm.sub.name).pack(side='left')
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271 sev=Subexprview(self,self.subterm.subexpr)
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272 sev.pack(side='left',fill='both',exp=1)
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273
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274 class Output:
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275 def __init__(self,subterms):
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276 make_attributes_from_args('subterms')
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277 def send_dmx(self,t):
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278
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279 scaledsubs=[]
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280 for st in self.subterms:
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281 scl = st.scaled(t)
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282 scaledsubs.append(scl)
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283 out = Submaster.sub_maxes(*scaledsubs)
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284 dispatcher.send("output levels",val=out.get_levels())
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285 dmxclient.outputlevels(out.get_dmx_list(),twisted=1)
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286
197
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287 def statuslines(master):
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288 for signame,textfilter in [
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289 ('input time',lambda t: "%.2fs"%t),
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290 ('output levels',
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291 lambda levels: textwrap.fill("; ".join(["%s:%.2f"%(n,v)
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292 for n,v in
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293 levels.items()]),70)),
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294 ('update period',lambda t: "%.1fms"%(t*1000)),
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295 ]:
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296 l = tk.Label(master,anchor='w',justify='left')
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297 l.pack(side='top',fill='x')
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298 dispatcher.connect(lambda val,l=l,sn=signame,tf=textfilter:
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299 l.config(text=sn+": "+tf(val)),
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300 signame,weak=0)
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301
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302 class Zoomcontrol(object,tk.Canvas):
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303
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304 def maxtime():
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305 doc = "seconds at the right edge of the bar"
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306 def fget(self): return self._maxtime
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307 def fset(self, value):
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308 self._maxtime = value
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309 self.updatewidget()
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310 return locals()
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311 maxtime = property(**maxtime())
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312
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313 def start():
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314 def fget(self): return self._start
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315 def fset(self,v): self._start = max(0,v)
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316 return locals()
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317 start = property(**start())
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318
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319 def end():
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320 def fget(self): return self._end
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321 def fset(self,v): self._end = min(self.maxtime,v)
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322 return locals()
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323 end = property(**end())
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324
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325
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326 def __init__(self,master,**kw):
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327 self.maxtime=370
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328 self.start=0
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329 self.end=20
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330 tk.Canvas.__init__(self,master,width=250,height=30,
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331 relief='raised',bd=1,bg='gray60',**kw)
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332 self.leftbrack = self.create_line(0,0,0,0,0,0,0,0,width=5)
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333 self.rightbrack = self.create_line(0,0,0,0,0,0,0,0,width=5)
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334 self.shade = self.create_rectangle(0,0,0,0,fill='gray70',outline=None)
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335 self.time = self.create_line(0,0,0,0,fill='red',width=2)
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336 self.updatewidget()
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337 self.bind("<Configure>",self.updatewidget)
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338
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339 self.bind("<ButtonPress-1>",lambda ev: setattr(self,'lastx',ev.x))
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340 self.tag_bind(self.leftbrack,"<B1-Motion>",
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341 lambda ev: self.adjust('start',ev))
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342 self.tag_bind(self.rightbrack,"<B1-Motion>",
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343 lambda ev: self.adjust('end',ev))
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344 self.tag_bind(self.shade,"<B1-Motion>",
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345 lambda ev: self.adjust('offset',ev))
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346 dispatcher.connect(lambda: (self.start,self.end),"zoom area",weak=0)
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347 dispatcher.connect(self.input_time,"input time")
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348 dispatcher.connect(lambda maxtime: (setattr(self,'maxtime',maxtime),
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349 self.updatewidget()),"max time",weak=0)
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350 self.created=1
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351 def input_time(self,val):
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352 t=val
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353 x=self.can_for_t(t)
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354 self.coords(self.time,x,0,x,self.winfo_height())
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355
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356 def adjust(self,attr,ev):
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357 if not hasattr(self,'lastx'):
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358 return
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359 new = self.can_for_t(getattr(self,attr)) + (ev.x - self.lastx)
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360 self.lastx = ev.x
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361 setattr(self,attr,self.t_for_can(new))
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362 self.updatewidget()
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363 dispatcher.send("zoom changed")
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364
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365 def offset():
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366 doc = "virtual attr that adjusts start and end together"
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367 def fget(self):
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368 return self.start
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369 def fset(self, value):
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370 d = self.end-self.start
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371 self.start = value
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372 self.end = self.start+d
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373 return locals()
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374 offset = property(**offset())
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375
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376 def can_for_t(self,t):
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377 return t/self.maxtime*(self.winfo_width()-30)+20
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378 def t_for_can(self,x):
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379 return (x-20)/(self.winfo_width()-30)*self.maxtime
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380
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381 def updatewidget(self,*args):
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382 """redraw pieces based on start/end"""
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383 if not hasattr(self,'created'): return
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384 y1,y2=3,self.winfo_height()-3
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385 lip = 6
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386 scan = self.can_for_t(self.start)
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387 ecan = self.can_for_t(self.end)
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388 self.coords(self.leftbrack,scan+lip,y1,scan,y1,scan,y2,scan+lip,y2)
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389 self.coords(self.rightbrack,ecan-lip,y1,ecan,y1,ecan,y2,ecan-lip,y2)
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390 self.coords(self.shade,scan+3,y1+lip,ecan-3,y2-lip)
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391 self.delete("tics")
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392 lastx=-1000
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393 for t in range(0,int(self.maxtime)):
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394 x = self.can_for_t(t)
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395 if 0<x<self.winfo_width() and x-lastx>30:
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396 txt=str(t)
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397 if lastx==-1000:
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398 txt=txt+"sec"
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399 self.create_line(x,0,x,15,
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400 tags=('tics',))
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401 self.create_text(x,self.winfo_height()-1,anchor='s',
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402 text=txt,tags=('tics',),font='6x13')
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403 lastx = x
0
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404
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405 #######################################################################
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406 root=tk.Tk()
197
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407 root.wm_geometry("790x930")
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408 #root.tk_focusFollowsMouse()
0
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409
196
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410 m=Music()
0
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411
197
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412 zc = Zoomcontrol(root)
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413 zc.pack(side='top',fill='x')
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414
196
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415 cs = Curveset()
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416 csv = Curvesetview(root,cs)
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417 csv.pack(side='top',fill='both',exp=1)
0
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418
196
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419 for loop in range(6):
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420 cs.add_curve('c'+str(loop+1),Curve())
0
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421
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422 subterms = []
196
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423 for subname in "zip_orange","zip_red":
0
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424
196
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425 se = Subexpr(cs)
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426 if subname=='zip_orange':
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427 se.expr="c1(t)+c2(t)+c3(t)+c4(t)+c5(t)"
0
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428
196
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429 st=Subterm()
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430 st.sub=Submaster.Submaster(subname)
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431 st.subexpr=se
0
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432
196
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433 stv=Subtermview(root,st)
197
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434 stv.pack(side='top',fill='x')
196
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parents: 0
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435 subterms.append(st)
0
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436
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437 out = Output(subterms)
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438
197
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439 statuslines(root)
196
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parents: 0
diff changeset
440
0
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parents:
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441 recent_t=[]
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parents:
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442 def update():
196
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parents: 0
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443 d = m.current_time()
0
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parents:
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444 d.addCallback(update2)
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parents:
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445 d.addErrback(updateerr)
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parents:
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446 def updateerr(e):
196
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parents: 0
diff changeset
447 reactor.callLater(1,update)
0
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parents:
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448 def update2(t):
196
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parents: 0
diff changeset
449 global recent_t
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parents: 0
diff changeset
450 reactor.callLater(.001,update)
0
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parents:
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451
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452 recent_t = recent_t[-50:]+[t]
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parents:
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453 period = (recent_t[-1]-recent_t[0])/len(recent_t)
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parents:
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454 dispatcher.send("update period",val=period)
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parents:
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455 out.send_dmx(t)
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parents:
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456 update()
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parents:
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457
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parents:
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458 tksupport.install(root,ms=10)
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parents:
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459 if 0:
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parents:
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460 sys.path.append("/home/drewp/projects/editor/pour")
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parents:
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461 from utils import runstats
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parents:
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462 runstats("reactor.run()")
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parents:
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463 else:
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parents:
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464 reactor.run()