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annotate bin/gyrocontroller @ 267:9de7bbf50267

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curvecalc fixes, especially a slowdown of the updates that's working better
author drewp@bigasterisk.com
date Fri, 17 Jun 2005 03:49:07 +0000
parents 60b6471fb0d2
children 97c08a1c4351
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1 #!/usr/bin/env python
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2 # vi: syntax=python
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3
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4 import run_local
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5 from light9.Submaster import Submasters, combine_subdict
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6 from light9.subclient import SubClient
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7
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8 import Tix as Tk
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9
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10 # TODO: move to Utility?
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11 class circcycle:
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12 """Like itertools.cycle, but with a prev() method too. You lose
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13 all iterator benefits by using this, since it will store the whole
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14 sequence/iterator in memory. Also, do not run this on an infinite
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15 iterator, as it tuple'ifies the input."""
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16 def __init__(self, sequence):
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17 self.sequence = tuple(sequence)
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18 self.index = None
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19 def __iter__(self):
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20 return self
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21 def change_index(self, delta):
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22 if self.index is None:
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23 if delta > 0:
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24 self.index = (-1 + delta) % len(self.sequence)
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25 elif delta < 0:
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26 self.index = delta % len(self.sequence)
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27 else:
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28 self.index = (self.index + delta) % len(self.sequence)
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29 def next(self):
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30 self.change_index(1)
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31 return self.sequence[self.index]
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32 def prev(self):
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33 self.change_index(-1)
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34 return self.sequence[self.index]
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35
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36 class AbstractSimpleController(SubClient):
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37 """Simple controller with minimal input and output:
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38
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39 Input is 4 directions and 3 buttons.
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40 Output is an integer and a color and maybe more.
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41
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42 Left + B1/right + B1: prev/next sub
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43 Y-axis + B2: set current level
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44 B3: toggle keep/solo mode
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45 Double-B3: clear kept levels"""
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46 def __init__(self, subnames):
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47 SubClient.__init__(self)
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48 self.subnames = subnames
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49 self.refresh()
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50 def refresh(self):
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51 # reload subs from disk
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52 self.submasters = Submasters()
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53 self.all_subs = circcycle(self.subnames)
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54 self.current_sub = self.submasters.get_sub_by_name(self.all_subs.next())
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55 self.current_level = 1.0
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56 self.kept_levels = {} # subname : level [0..1]
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57 self.keep_solo_mode = 'keep' # either 'keep' or 'solo'
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58 def clear_kept_levels(self):
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59 self.kept_levels.clear()
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60 def next(self):
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61 if self.keep_solo_mode == 'keep':
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62 self.kept_levels[self.current_sub] = self.current_level
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63
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64 self.current_sub = self.submasters.get_sub_by_name(self.all_subs.next())
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65 def prev(self):
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66 if self.keep_solo_mode == 'keep':
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67 self.kept_levels[self.current_sub] = self.current_level
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68
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69 self.current_sub = self.submasters.get_sub_by_name(self.all_subs.prev())
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70 def toggle_keep_mode(self):
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71 if self.keep_solo_mode == 'keep':
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72 self.kept_levels[self.current_sub] = self.current_level
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73 self.keep_solo_mode = 'solo'
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74 else:
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75 self.keep_solo_mode = 'keep'
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76
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77 def get_levels_as_sub(self):
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78 if self.keep_solo_mode == 'keep':
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79 # send all levels in self.kept_levels
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80 levelsub = combine_subdict(self.kept_levels)
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81 else:
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82 levelsub = self.current_sub * self.current_level
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83
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84 return levelsub
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85
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86 class TkGyro(Tk.Canvas, AbstractSimpleController):
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87 def __init__(self, master, subnames):
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88 Tk.Canvas.__init__(self, master, bg='black', bd=0, highlightthickness=0,
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89 confine=None)
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90 AbstractSimpleController.__init__(self, subnames)
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91 height = int(self.winfo_screenheight())
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92 width = int(self.winfo_screenwidth())
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93 self.left = self.create_rectangle((0, 0, width / 2, height),
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94 tags='left', fill='black')
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95 self.right = self.create_rectangle((width / 2, 0, width, height),
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96 tags='right', fill='black')
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97
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98 # the text is disabled so that it doesn't receive events
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99 self.modetext = self.create_text((width / 2, height / 2),
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100 font='Courier 200', fill='white', text=self.keep_solo_mode,
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101 state='disabled')
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102 self.flashtextafter = '' # current after timer for displaying text
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103
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104 def setfill(item, color):
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105 self.itemconfig(item, fill=color)
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106 def setlevel(evt):
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107 if evt.state & 512:
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108 y = (height - evt.y) / float(height)
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109 self.flash_text('<%d>' % (y * 100))
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110 self.current_level = y
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111 self.send_levels()
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112
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113 data = ((self.left, 'left', '#000099', self.prev),
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114 (self.right, 'right', '#990000', self.next))
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115 for item, tag, color, method in data:
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116 self.tag_bind(tag, '<Enter>',
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117 lambda evt, item=item, color=color: setfill(item, color))
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118 self.tag_bind(tag, '<Leave>',
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119 lambda evt, item=item, color=color: setfill(item, 'black'))
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120 self.tag_bind(tag, '<ButtonPress-1>',
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121 lambda evt, item=item, color=color: setfill(item, 'green'), '+')
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122 self.tag_bind(tag, '<ButtonRelease-1>',
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123 lambda evt, item=item, color=color: setfill(item, color), '+')
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124 self.tag_bind(tag, '<Button-1>',
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125 lambda evt, method=method: method(), '+')
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126
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127 # B2+drag sets current level, double-B2 resets kept levels
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128 self.tag_bind('all', '<Motion>', setlevel, '+')
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129 self.tag_bind('all', '<Double-Button-2>',
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130 lambda evt: self.clear_kept_levels())
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131 # B3 toggles between keep and solo mode
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132 self.tag_bind('all', '<Button-3>', lambda evt: self.toggle_keep_mode())
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133
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134 self.send_levels_loop()
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135 def toggle_keep_mode(self):
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136 AbstractSimpleController.toggle_keep_mode(self)
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137 self.show_current_mode()
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138 self.send_levels()
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139 def show_current_mode(self):
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140 if self.keep_solo_mode == 'keep':
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141 self.keep_solo_mode = 'keep'
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142 else:
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143 self.keep_solo_mode = ''
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144
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145 self.itemconfig(self.modetext, text=self.keep_solo_mode)
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146 def clear_kept_levels(self):
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147 AbstractSimpleController.clear_kept_levels(self)
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148 self.flash_text('cleared')
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149 self.send_levels()
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150 def flash_text(self, text):
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151 self.itemconfig(self.modetext, text=text)
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152 self.after_cancel(self.flashtextafter)
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153 self.flashtextafter = self.after(2000, self.show_current_mode)
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154 def next(self):
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155 AbstractSimpleController.next(self)
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156 self.flash_text(self.current_sub.name)
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157 self.send_levels()
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158 def prev(self):
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159 AbstractSimpleController.prev(self)
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160 self.flash_text(self.current_sub.name)
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161 self.send_levels()
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162
246
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163 if __name__ == "__main__":
258
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164 import sys, fileinput
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165 subnames = sys.argv[1:]
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166 if not subnames:
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167 subnames = [line.strip() for line in fileinput.input()]
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168
255
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169 root = Tk.Tk()
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170 # these are hints to Fvwm2 if you add this to your .fvwm2rc:
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171 # Style "*NOTITLE*" NoTitle
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172 # Style "*NOBORDER*" BorderWidth 0, NoHandles
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173 # Style "*ONTOP*" StaysOnTop Sticky
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174 # hopefully, there's a better way to do this within Tk
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175 root.title("NOTITLE NOBORDER ONTOP")
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176 root.wm_geometry('%sx%s' % (root.winfo_screenwidth(),
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177 root.winfo_screenheight()))
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178
258
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179 gyro = TkGyro(root, subnames)
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180 gyro.pack(fill='both', expand=1)
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181 root.bind('<Key-q>', lambda evt: root.destroy())
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182 root.maxsize(root.winfo_screenwidth(), root.winfo_screenheight())
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183 Tk.mainloop()