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annotate flax/curvecalc @ 200:f5d3492981ab

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moved Zoomcontrol to another file
author drewp
date Wed, 16 Jun 2004 13:12:07 +0000
parents ba2677823b35
children 97e21bc387fe
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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 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 self.points = [(0,0),(1,1),(9,1),(10,0)]
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29 for x in range(11,500):
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30 self.points.append((x,.5))
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31
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32 def eval(self,t):
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33 i = bisect_left(self.points,(t,None))-1
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34
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35 if self.points[i][0]>t:
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36 return self.points[i][1]
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37 if i>=len(self.points)-1:
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38 return self.points[i][1]
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39
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40 p1,p2 = self.points[i],self.points[i+1]
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41 frac = (t-p1[0])/(p2[0]-p1[0])
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42 y = p1[1]+(p2[1]-p1[1])*frac
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43 return y
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44
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45 __call__=eval
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46
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47 class Curveview(tk.Canvas):
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48 def __init__(self,master,curve,**kw):
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49 self.curve=curve
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50 tk.Canvas.__init__(self,master,width=10,height=10,
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51 relief='sunken',bd=1,
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52 closeenough=5,**kw)
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53 self.selected_points=[] # idx of points being dragged
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54 self.update()
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55 self.bind("<Enter>",self.focus)
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56 dispatcher.connect(self.input_time,"input time")
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57 dispatcher.connect(self.update,"zoom changed")
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58 self.bind("<Configure>",self.update)
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59 def screen_from_world(self,p):
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60 start,end = self.zoom
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61 ht = self.winfo_height()
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62 return (p[0]-start)/(end-start)*self.winfo_width(), (ht-5)-p[1]*(ht-10)
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63 def world_from_screen(self,x,y):
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64 start,end = self.zoom
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65 ht = self.winfo_height()
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66 return x/self.winfo_width()*(end-start)+start, ((ht-5)-y)/(ht-10)
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67
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68 def input_time(self,val):
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69 t=val
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70 pts = self.screen_from_world((val,0))+self.screen_from_world((val,1))
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71 self.delete('timecursor')
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72 self.create_line(*pts,**dict(width=2,fill='red',tags=('timecursor',)))
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73 def update(self,*args):
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74
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75 self.zoom = dispatcher.send("zoom area")[0][1]
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76 cp = self.curve.points
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77
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78 visible_x = (self.world_from_screen(0,0)[0],
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79 self.world_from_screen(self.winfo_width(),0)[0])
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80
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81 visleftidx = max(0,bisect_left(cp,(visible_x[0],None))-1)
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82 visrightidx = min(len(cp)-1,bisect_left(cp,(visible_x[1],None))+1)
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83
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84 visible_points = cp[visleftidx:visrightidx]
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85
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86 self.delete('curve')
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87 linepts=[]
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88 for p in visible_points:
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89 linepts.extend(self.screen_from_world(p))
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90 line = self.create_line(*linepts,**{'tags':'curve'})
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91
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92 # canvas doesnt have keyboard focus, so i can't easily change the
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93 # cursor when ctrl is pressed
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94 # def curs(ev):
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95 # print ev.state
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96 # self.bind("<KeyPress>",curs)
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97 # self.bind("<KeyRelease-Control_L>",lambda ev: curs(0))
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98 self.tag_bind(line,"<Control-ButtonPress-1>",self.newpoint)
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99
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100 self.dots = {} # idx : canvas rectangle
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101
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102 if len(visible_points)<50: ###self.zoom[1]-self.zoom[0]<30 or len(visible_points)<:
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103 for i,p in enumerate(visible_points):
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104 rad=3
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105 p = self.screen_from_world(p)
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106 # if p[0]-prevx<10:
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107 # # too close- skip the dots
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108 # continue
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109 dot = self.create_rectangle(p[0]-rad,p[1]-rad,p[0]+rad,p[1]+rad,
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110 outline='black',fill='blue',
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111 tags=('curve','point'))
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112 self.tag_bind(dot,"<ButtonPress-1>",
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113 lambda ev,i=i: self.dotpress(ev,i))
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114 self.bind("<Motion>",
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115 lambda ev,i=i: self.dotmotion(ev,i))
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116 self.bind("<ButtonRelease-1>",
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117 lambda ev,i=i: self.dotrelease(ev,i))
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118 self.dots[i]=dot
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119
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120 self.highlight_selected_dots()
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121
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122 def newpoint(self,ev):
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123 cp = self.curve.points
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124
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125 p = self.world_from_screen(ev.x,ev.y)
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126 i = bisect(cp,(p[0],None))
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127
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128 self.unselect()
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129 cp.insert(i,p)
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130 self.update()
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131
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132 def highlight_selected_dots(self):
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133 for i,d in self.dots.items():
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134 if i in self.selected_points:
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135 self.itemconfigure(d,fill='red')
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136 else:
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137 self.itemconfigure(d,fill='blue')
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138
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139 def dotpress(self,ev,dotidx):
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140 self.selected_points=[dotidx]
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141 self.highlight_selected_dots()
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142
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143 def dotmotion(self,ev,dotidx):
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144 cp = self.curve.points
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145
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146 moved=0
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147 for idx in self.selected_points:
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148 newp = self.world_from_screen(ev.x,ev.y)
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149 if idx>0 and newp[0]<=cp[idx-1][0]:
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150 continue
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151 if idx<len(cp)-1 and newp[0]>=cp[idx+1][0]:
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152 continue
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153 moved=1
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154 cp[idx] = newp
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155 if moved:
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156 self.update()
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157 def unselect(self):
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158 self.selected_points=[]
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159 self.highlight_selected_dots()
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160
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161 def dotrelease(self,ev,dotidx):
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162 self.unselect()
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163
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164 class Curveset:
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165 curves = None # curvename : curve
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166 def __init__(self):
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167 self.curves = {}
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168 def add_curve(self,name,curve):
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169 self.curves[name] = curve
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170 dispatcher.send("add_curve",sender=self,name=name)
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171 def globalsdict(self):
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172 return self.curves.copy()
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173
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174 class Curvesetview(tk.Frame):
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175 curves = None # curvename : Curveview
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176 def __init__(self,master,curveset,**kw):
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177 self.curves = {}
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178 self.curveset = curveset
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179 tk.Frame.__init__(self,master,**kw)
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180 dispatcher.connect(self.add_curve,"add_curve",sender=self.curveset)
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181 def add_curve(self,name):
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182 f = tk.Frame(self,relief='raised',bd=1)
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183 f.pack(side='top',fill='both',exp=1)
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184 tk.Label(f,text="curve %r"%name).pack(side='left')
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185 cv = Curveview(f,self.curveset.curves[name])
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186 cv.pack(side='right',fill='both',exp=1)
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187 self.curves[name] = cv
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188
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189 class Music:
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190 def __init__(self):
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191 self.player=None # xmlrpc Proxy to player
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192 self.recenttime=0
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193
0
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194 def current_time(self):
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195 """return deferred which gets called with the current time"""
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196 if self.player is None:
197
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197 self.player = Proxy("http://spot:8040")
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198 d = self.player.callRemote("songlength")
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199 def sendmax(l):
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200 dispatcher.send("max time",maxtime=l)
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201 d.addCallback(sendmax)
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202 d = self.player.callRemote('gettime')
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203 def sendtime(t):
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204 dispatcher.send("input time",val=t)
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205 return t # pass along to the real receiver
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206 def error(e):
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207 pass#self.player=None
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208 d.addCallback(sendtime)
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209 return d
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210
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211 class Subexpr:
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212 curveset = None
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213 def __init__(self,curveset):
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214 self.curveset = curveset
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215 self.lasteval = None
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216 self.expr=""
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217 def eval(self,t):
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218 if self.expr=="":
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219 dispatcher.send("expr_error",sender=self,exc="no expr, using 0")
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220 return 0
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221 glo = self.curveset.globalsdict()
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222 glo['t'] = t
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223 try:
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224 self.lasteval = eval(self.expr,glo)
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225 except Exception,e:
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226 dispatcher.send("expr_error",sender=self,exc=e)
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227 else:
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228 dispatcher.send("expr_error",sender=self,exc="no errors")
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229 return self.lasteval
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230
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231 def expr():
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232 doc = "python expression for level as a function of t, using curves"
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233 def fget(self):
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234 return self._expr
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235 def fset(self, value):
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236 self._expr = value
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237 dispatcher("expr_changed",sender=self)
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238 return locals()
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239 expr = property(**expr())
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240
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241 class Subexprview(tk.Frame):
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242 def __init__(self,master,se,**kw):
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243 self.subexpr=se
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244 tk.Frame.__init__(self,master,**kw)
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245 self.evar = tk.StringVar()
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246 e = self.ent = tk.Entry(master,textvariable=self.evar)
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247 e.pack(side='left',fill='both',exp=1)
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248 self.expr_changed()
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249 self.evar.trace_variable('w',self.evar_changed)
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250 dispatcher.connect(self.expr_changed,"expr_changed",
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251 sender=self.subexpr)
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252 self.error = tk.Label(master)
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253 self.error.pack(side='left')
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254 dispatcher.connect(lambda exc: self.error.config(text=str(exc)),
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255 "expr_error",sender=self.subexpr,weak=0)
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256 def expr_changed(self):
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257 if self.subexpr.expr!=self.evar.get():
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258 self.evar.set(self.subexpr.expr)
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259 def evar_changed(self,*args):
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260 self.subexpr.expr = self.evar.get()
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261
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262 class Subterm:
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263 """one Submaster and its Subexpr"""
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264 def scaled(self,t):
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265 return self.sub * self.subexpr.eval(t)
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266
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267 class Subtermview(tk.Frame):
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268 def __init__(self,master,st,**kw):
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269 self.subterm = st
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270 tk.Frame.__init__(self,master,bd=1,relief='raised',**kw)
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271 tk.Label(self,text="sub %r" % self.subterm.sub.name).pack(side='left')
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272 sev=Subexprview(self,self.subterm.subexpr)
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273 sev.pack(side='left',fill='both',exp=1)
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274
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275 class Output:
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276 def __init__(self,subterms):
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277 make_attributes_from_args('subterms')
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278 def send_dmx(self,t):
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279
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280 scaledsubs=[]
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281 for st in self.subterms:
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282 scl = st.scaled(t)
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283 scaledsubs.append(scl)
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284 out = Submaster.sub_maxes(*scaledsubs)
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285 dispatcher.send("output levels",val=out.get_levels())
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286 dmxclient.outputlevels(out.get_dmx_list(),twisted=1)
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287
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288 def statuslines(master):
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289 for signame,textfilter in [
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290 ('input time',lambda t: "%.2fs"%t),
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291 ('output levels',
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292 lambda levels: textwrap.fill("; ".join(["%s:%.2f"%(n,v)
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293 for n,v in
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294 levels.items()]),70)),
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295 ('update period',lambda t: "%.1fms"%(t*1000)),
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296 ]:
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297 l = tk.Label(master,anchor='w',justify='left')
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298 l.pack(side='top',fill='x')
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299 dispatcher.connect(lambda val,l=l,sn=signame,tf=textfilter:
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300 l.config(text=sn+": "+tf(val)),
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301 signame,weak=0)
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302
0
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303
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304 #######################################################################
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305 root=tk.Tk()
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306 root.wm_geometry("790x930")
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307 #root.tk_focusFollowsMouse()
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308
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309 m=Music()
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310
197
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311 zc = Zoomcontrol(root)
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312 zc.pack(side='top',fill='x')
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313
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314 cs = Curveset()
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315 csv = Curvesetview(root,cs)
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316 csv.pack(side='top',fill='both',exp=1)
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317
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318 for loop in range(6):
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319 cs.add_curve('c'+str(loop+1),Curve())
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320
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321 subterms = []
196
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322 for subname in "zip_orange","zip_red":
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323
196
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324 se = Subexpr(cs)
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325 if subname=='zip_orange':
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326 se.expr="c1(t)+c2(t)+c3(t)+c4(t)+c5(t)"
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327
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328 st=Subterm()
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329 st.sub=Submaster.Submaster(subname)
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330 st.subexpr=se
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331
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332 stv=Subtermview(root,st)
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333 stv.pack(side='top',fill='x')
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334 subterms.append(st)
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335
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336 out = Output(subterms)
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337
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338 statuslines(root)
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339
0
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340 recent_t=[]
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341 def update():
196
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342 d = m.current_time()
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343 d.addCallback(update2)
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344 d.addErrback(updateerr)
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345 def updateerr(e):
196
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346 reactor.callLater(1,update)
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347 def update2(t):
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348 global recent_t
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349 reactor.callLater(.001,update)
0
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350
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351 recent_t = recent_t[-50:]+[t]
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352 period = (recent_t[-1]-recent_t[0])/len(recent_t)
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353 dispatcher.send("update period",val=period)
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354 out.send_dmx(t)
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355 update()
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356
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357 tksupport.install(root,ms=10)
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358 if 0:
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359 sys.path.append("/home/drewp/projects/editor/pour")
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360 from utils import runstats
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361 runstats("reactor.run()")
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362 else:
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363 reactor.run()