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annotate light8/ExtSliderMapper.py @ 90:d34a4956417a

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rsn has a separate thread that receives rlslider connections from a potserver.py process, rsn has a separate thread that receives rlslider connections from a potserver.py process, and they work
author drewp
date Sat, 13 Jul 2002 02:57:27 +0000
parents a5c0b7ac63cf
children 827a675131dc
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1 """some more of the panels"""
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2 from Tix import *
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3
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4 class SliderMapping:
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5 def __init__(self, default='disconnected', attached=0, extinputlevel=0,
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6 sublevel=0):
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7 self.subname = StringVar() # name of submaster we're connected to
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8 self.subname.set(default)
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9 self.sublevel = DoubleVar() # scalelevel variable of that submaster
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10 self.sublevel.set(sublevel)
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11 self.attached = BooleanVar() # currently attached
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12 self.attached.set(attached)
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13 self.extlevel = DoubleVar() # external slider's input
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14 self.extlevel.set(extinputlevel)
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15 self.widgets = [] # list of widgets drawn
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16 self.sublabel = None # the label which represents a sub level. we hold on to
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17 # it so we can change its textvariable
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18 self.lastbgcolor = None # last background color drawn to avoid unnecessary
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19 # updates
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20 def attach(self):
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21 self.attached.set(1)
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22 self.color_text()
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23 def detach(self):
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24 self.attached.set(0)
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25 self.color_text()
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26 def isattached(self):
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27 return self.attached.get()
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28 def isdisconnected(self):
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29 return self.subname.get() == 'disconnected'
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30 def check_attached(self):
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31 'If external level is higher than the sublevel, it attaches'
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32 if self.isdisconnected():
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33 self.detach()
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34 return
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35
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36 if self.extlevel.get() > self.sublevel.get():
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37 self.attached.set(1)
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38 self.color_text()
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39 def changed_extinput(self, newlevel):
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40 'When a new external level is received, this incorporates it'
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41 self.extlevel.set(newlevel)
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42 self.check_attached()
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43 self.color_text()
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44 def set_subname(self, newname):
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45 self.subname.set(newname)
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46 self.detach()
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47 self.color_text()
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48 def color_text(self):
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49 if self.widgets:
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50 if self.isdisconnected():
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51 color = 'honeyDew4'
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52 elif self.isattached():
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53 color = 'honeyDew2'
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54 else: # detached
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55 color = 'red'
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56
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57 if self.lastbgcolor == color: return
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58 for widget in self.widgets:
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59 widget.configure(bg=color)
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60 self.lastbgcolor = color
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61 def disconnect(self):
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62 self.set_subname('disconnected') # a bit hack-like
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63 self.sublabel.configure(text="N/A")
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64 def set_sublevel_var(self, newvar):
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65 'newvar is one of the variables in scalelevels'
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66 self.sublevel = newvar
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67 if self.sublabel:
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68 self.sublabel.configure(textvariable=newvar)
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69 self.check_attached()
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70 def get_mapping(self):
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71 'Get name of submaster currently mapped'
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72 return self.subname.get()
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73 def get_level_pair(self):
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74 'Returns suitable output for ExtSliderMapper.get_levels()'
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75 return (self.subname.get(), self.extlevel.get())
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76 def draw_interface(self, master, subnames):
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77 'Draw interface into master, given a list of submaster names'
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78 frame = Frame(master)
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79 c = ComboBox(frame, variable=self.subname)
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80 c.slistbox.listbox.insert(END, "disconnected")
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81 for s in subnames:
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82 c.slistbox.listbox.insert(END, s)
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83 c.entry.configure(width=12)
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84 statframe = Frame(frame)
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85 cb = Checkbutton(statframe, variable=self.attached,
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86 text="Attached")
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87 cb.grid(columnspan=2, sticky=W)
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88 ilabel = Label(statframe, text="Input", fg='blue')
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89 ilabel.grid(row=1, sticky=W)
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90 extlabel = Label(statframe, textvariable=self.extlevel, width=5)
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91 extlabel.grid(row=1, column=1)
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92 rlabel = Label(statframe, text="Real")
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93 rlabel.grid(row=2, sticky=W)
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94 self.sublabel = Label(statframe, text="N/A", width=5)
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95 self.sublabel.grid(row=2, column=1)
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96 statframe.pack(side=BOTTOM, expand=1, fill=X)
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97 c.pack()
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98 frame.pack(side=LEFT, expand=1, fill=BOTH)
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99
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100 self.widgets = [frame, c, statframe, cb, ilabel, extlabel, rlabel,
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101 self.sublabel]
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102
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103 class ExtSliderMapper(Frame):
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104 def __init__(self, parent, sliderlevels, sliderinput, filename='slidermapping',
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105 numsliders=4):
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106 'Slider levels is scalelevels, sliderinput is an ExternalInput object'
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107 Frame.__init__(self, parent)
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108 self.parent = parent
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109 self.sliderlevels = sliderlevels
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110 self.sliderinput = sliderinput
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111 self.filename = filename
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112 self.numsliders = numsliders
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113 self.file = None
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114
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115 # don't call setup, let them do that when scalelevels is created
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116 def setup(self):
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117 self.subnames = self.sliderlevels.keys()
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118 self.subnames.sort()
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119 self.presets = {}
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120 self.load_presets()
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121
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122 self.current_preset = StringVar() # name of current preset
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123 self.current_mappings = []
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124 for i in range(self.numsliders):
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125 self.current_mappings.append(SliderMapping())
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126
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127 self.draw_interface()
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128 def load_presets(self):
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129 self.file = open(self.filename, 'r')
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130 lines = self.file.readlines()
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131 for l in lines:
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132 tokens = l[:-1].split('\t')
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133 name = tokens.pop(0)
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134 self.presets[name] = tokens
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135 self.file.close()
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136 def save_presets(self):
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137 self.file = open(self.filename, 'w')
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138 self.file.seek(0)
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139 preset_names = self.presets.keys()
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140 preset_names.sort()
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141 for p in preset_names:
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142 s = '\t'.join([p] + self.presets[p]) + '\n'
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143 self.file.write(s)
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144 self.file.close()
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145 def load_scalelevels(self):
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146 for slidermap in self.current_mappings:
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147 try:
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148 v = self.sliderlevels[slidermap.get_mapping()]
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149 slidermap.set_sublevel_var(v)
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150 except KeyError:
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151 pass
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152
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153 def get_levels(self):
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154 'Called by changelevels, returns a dict of new values for submasters'
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155 if not self.sliderinput: return {}
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156
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157 self.load_scalelevels() # freshen our input from the physical sliders
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158
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159 rawlevels = self.sliderinput.get_levels()
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160 for rawlev, slidermap in zip(rawlevels, self.current_mappings):
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161 slidermap.changed_extinput(rawlev)
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162
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163 outputlevels = {}
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164 return dict([m.get_level_pair()
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165 for m in self.current_mappings
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166 if m.isattached()])
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167 def draw_interface(self):
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168 self.reallevellabels = []
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169 subchoiceframe = Frame(self)
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170 for m in self.current_mappings:
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171 m.draw_interface(subchoiceframe, self.subnames)
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172 subchoiceframe.pack()
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173
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174 presetframe = Frame(self)
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175 Label(presetframe, text="Preset:").pack(side=LEFT)
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176 self.presetcombo = ComboBox(presetframe, variable=self.current_preset,
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177 editable=1, command=self.apply_preset)
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178 self.draw_presets()
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179 self.presetcombo.pack(side=LEFT)
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180 Button(presetframe, text="Add", padx=0, pady=0,
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181 command=self.add_preset).pack(side=LEFT)
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182 Button(presetframe, text="Delete", padx=0, pady=0,
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183 command=self.delete_preset).pack(side=LEFT)
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184 Button(presetframe, text="Disconnect", padx=0, pady=0,
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185 command=self.disconnect_all).pack(side=LEFT)
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186 presetframe.pack(side=BOTTOM)
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187 def apply_preset(self, preset):
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188 if not preset: return
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189 preset_mapping = self.presets.get(preset)
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190 if not preset_mapping: return
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191 for subname, slidermap in zip(preset_mapping, self.current_mappings):
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192 slidermap.set_subname(subname)
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193 def delete_preset(self, *args):
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194 del self.presets[self.current_preset.get()]
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195 self.presetcombo.slistbox.listbox.delete(0, END)
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196 self.draw_presets()
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197 self.save_presets()
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198 def add_preset(self, *args):
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199 self.presets[self.current_preset.get()] = [m.get_mapping()
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200 for m in self.current_mappings]
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201 self.presetcombo.slistbox.listbox.delete(0, END)
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202 self.draw_presets()
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203 self.save_presets()
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204 def draw_presets(self):
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205 preset_names = self.presets.keys()
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206 preset_names.sort()
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207 for p in preset_names:
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208 self.presetcombo.slistbox.listbox.insert(END, p)
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209 def disconnect_all(self):
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210 for m in self.current_mappings:
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211 m.disconnect()