annotate light8/ExtSliderMapper.py @ 102:e04f7b552bcd

- scroll wheel works everywhere - scroll wheel works everywhere - interface is white on black - subs that start scenes are white - more status information, startup process kinda cleaned up
author dmcc
date Sun, 14 Jul 2002 08:01:24 +0000
parents a995fd1a8f03
children ddd3c8f04640
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1 """ The External Slider Mapping widget determines which pots map to which
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2 submasters. It tells you the status of each mapping and saves and loads
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3 presets. The show is relying on this module! Do not lose it!
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4
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5 FUQ (frequently unasked question(s))
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7 1. What's with all the *args?
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8
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9 It lets functions take any number of arguments and throw them away.
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10 Callbacks do this, and we typically don't care about what they have to say. """
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11
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12 from Tix import *
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13 from uihelpers import FancyDoubleVar, get_selection
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14
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15 stdfont = ('Arial', 8)
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16
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17 class SliderMapping:
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18 def __init__(self, default='disconnected', synced=0, extinputlevel=0,
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19 sublevel=0):
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20 self.subname = StringVar() # name of submaster we're connected to
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21 self.subname.set(default)
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22 self.sublevel = DoubleVar() # scalelevel variable of that submaster
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23 # self.sublevel = FancyDoubleVar() # scalelevel variable of that submaster
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24 self.sublevel.set(sublevel)
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25 self.synced = BooleanVar() # currently synced
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26 self.synced.set(synced)
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27 self.extlevel = DoubleVar() # external slider's input
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28 self.extlevel.set(extinputlevel)
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29 self.widgets = [] # list of widgets drawn
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30 self.sublabel = None # the label which represents a sub level.
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31 # we hold on to it so we can change its
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32 # textvariable
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33 self.statuslabel = None # tells us sync status
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34 self.lastbgcolor = None # last background color drawn to avoid
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35 # unnecessary redraws
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36 self.subnames = [] # we need to keep track of this for idiotic reasons
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37 def sync(self, *args):
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38 self.synced.set(1)
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39 self.color_bg()
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40 def unsync(self, *args):
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41 self.synced.set(0)
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42 self.color_bg()
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43 def issynced(self):
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44 return self.synced.get()
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45 def disconnect(self, *args):
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46 self.set_subname('disconnected') # a bit hack-like
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47 # self.sublevel.delete_named('sync')
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48 '''
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49 try:
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50 if self.sublevel.unsync_trace_cbname is not None:
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51 # self.sublevel.trace_vdelete('w',
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52 # self.sublevel.unsync_trace_cbname)
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53 self.sublevel._tk.call('trace', 'vdelete', self.sublevel._name,
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54 'w', self.sublevel.unsync_trace_cbname)
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55 self.sublevel.unsync_trace_cbname = None
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56 except AttributeError:
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57 pass
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58 '''
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59
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60 self.sublabel.configure(text="N/A")
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61 self.color_bg()
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62 def isdisconnected(self):
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63 return self.subname.get() == 'disconnected' # a bit more hack-like
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64 def check_synced(self, *args):
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65 'If external level is near than the sublevel, it synces'
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66 if self.isdisconnected():
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67 self.unsync()
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68 return
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69
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70 if abs(self.extlevel.get() - self.sublevel.get()) <= 0.02:
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71 self.sync()
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72 def changed_extinput(self, newlevel):
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73 'When a new external level is received, this incorporates it'
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74 self.extlevel.set(newlevel)
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75 self.check_synced()
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76 self.color_bg()
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77 def set_subname(self, newname):
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78 try:
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79 self.listbox.listbox.select_clear(0, END)
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80 except IndexError:
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81 pass
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82 try:
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83 newindex = self.subnames.index(newname)
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84 self.listbox.listbox.select_set(newindex)
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85 self.listbox.listbox.see(newindex)
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86 except ValueError:
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87 pass
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88
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89 self.subname.set(newname)
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90 self.unsync()
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91 self.color_bg()
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92 def color_bg(self):
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93 if self.widgets:
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94 if self.isdisconnected():
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95 color = 'honeyDew4'
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96 # stupid hack
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97 # elif abs(self.extlevel.get() - self.sublevel.get()) <= 0.02:
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98 elif self.issynced():
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99 color = 'honeyDew2'
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100 else: # unsynced
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101 color = 'red'
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102
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103 if self.statuslabel: # more stupid hackery
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104 if color == 'honeyDew2': # connected
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105 self.statuslabel['text'] = 'Sync'
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106 elif self.extlevel.get() < self.sublevel.get():
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107 self.statuslabel['text'] = 'No sync (go up)'
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108 else:
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109 self.statuslabel['text'] = 'No sync (go down)'
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110
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111 # print "color", color, "lastbgcolor", self.lastbgcolor
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112 if self.lastbgcolor == color: return
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113 for widget in self.widgets:
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114 widget.configure(bg=color)
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115 self.lastbgcolor = color
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116 def set_sublevel_var(self, newvar):
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117 'newvar is one of the variables in scalelevels'
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118
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119 if newvar is not self.sublevel:
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120 # self.sublevel.delete_named('sync')
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121 self.sublevel = newvar
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122 self.sublabel.configure(textvariable=newvar)
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123 # self.sublevel.trace_named('sync', lambda *args: self.unsync(*args))
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124 '''
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125 try:
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126 if self.sublevel.unsync_trace_cbname is not None:
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127 # remove an old trace
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128 self.sublevel.trace_vdelete('w',
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129 self.sublevel.unsync_trace_cbname)
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130 except AttributeError:
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131 pass # it didn't have one
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132
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133 self.sublevel = newvar
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134 self.sublevel.unsync_trace_cbname = self.sublevel.trace('w',
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135 self.unsync)
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136 '''
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137
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138 # if self.sublabel:
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139 # self.sublabel.configure(textvariable=newvar)
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140 self.check_synced()
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141 def get_mapping(self):
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142 'Get name of submaster currently mapped'
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143 return self.subname.get()
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144 def get_level_pair(self):
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145 'Returns suitable output for ExtSliderMapper.get_levels()'
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146 return (self.subname.get(), self.extlevel.get())
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147 def listbox_cb(self, *args):
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148 self.subname.set(self.subnames[get_selection(self.listbox.listbox)-0])
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149 def draw_interface(self, master, subnames):
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150 'Draw interface into master, given a list of submaster names'
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151 self.subnames = subnames
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152 frame = Frame(master, bg='black')
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153 self.listbox = ScrolledListBox(frame, scrollbar='y', bg='black')
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154 self.listbox.listbox.bind("<<ListboxSelect>>", self.listbox_cb, add=1)
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155 self.listbox.listbox.configure(font=stdfont, exportselection=0,
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156 selectmode=BROWSE, bg='black', fg='white')
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157 self.listbox.vsb.configure(troughcolor='black')
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158 # self.listbox.listbox.insert(END, "disconnected")
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159 for s in subnames:
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160 self.listbox.listbox.insert(END, s)
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161 statframe = Frame(frame, bg='black')
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162
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163 self.statuslabel = Label(statframe, text="No sync", width=15,
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164 font=stdfont)
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165 self.statuslabel.grid(columnspan=2, sticky=W)
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166 ilabel = Label(statframe, text="Input", fg='blue', font=stdfont)
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167 ilabel.grid(row=1, sticky=W)
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168 extlabel = Label(statframe, textvariable=self.extlevel, width=5,
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169 font=stdfont)
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170 extlabel.grid(row=1, column=1)
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171 rlabel = Label(statframe, text="Real", font=stdfont)
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172 rlabel.grid(row=2, sticky=W)
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173 self.sublabel = Label(statframe, text="N/A", width=5, font=stdfont)
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174 self.sublabel.grid(row=2, column=1)
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175 disc_button = Button(statframe, text="Disconnect",
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176 command=self.disconnect, padx=0, pady=0, font=stdfont)
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177 disc_button.grid(row=3, columnspan=2)
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178 statframe.pack(side=BOTTOM, expand=1, fill=BOTH)
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179 self.listbox.pack(expand=1, fill=BOTH)
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180 frame.pack(side=LEFT, expand=1, fill=BOTH)
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181
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182 self.widgets = [frame, self.listbox, statframe, self.statuslabel,
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183 ilabel, extlabel, rlabel, self.sublabel, disc_button]
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184
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185 class ExtSliderMapper(Frame):
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186 def __init__(self, parent, sliderlevels, sliderinput, filename='slidermapping',
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187 numsliders=4):
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188 'Slider levels is scalelevels, sliderinput is an ExternalInput object'
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189 Frame.__init__(self, parent, bg='black')
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190 self.parent = parent
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191 self.sliderlevels = sliderlevels
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192 self.sliderinput = sliderinput
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193 self.filename = filename
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194 self.numsliders = numsliders
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195 self.file = None
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196
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197 # don't call setup, let them do that when scalelevels is created
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198 def setup(self):
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199 self.subnames = self.sliderlevels.keys()
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200 self.subnames.sort()
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201 self.presets = {}
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202 self.load_presets()
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203
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204 self.current_preset = StringVar() # name of current preset
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205 self.current_mappings = []
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206 for i in range(self.numsliders):
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207 self.current_mappings.append(SliderMapping())
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208
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209 self.draw_interface()
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210 def load_presets(self):
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211 self.presets = {}
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212 self.file = open(self.filename, 'r')
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213 lines = self.file.readlines()
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214 for l in lines:
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215 tokens = l[:-1].split('\t')
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216 name = tokens.pop(0)
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217 self.presets[name] = tokens
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218 self.file.close()
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219 def save_presets(self):
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220 self.file = open(self.filename, 'w')
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221 self.file.seek(0)
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222 preset_names = self.presets.keys()
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223 preset_names.sort()
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224 for p in preset_names:
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225 s = '\t'.join([p] + self.presets[p]) + '\n'
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226 self.file.write(s)
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227 self.file.close()
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228 def load_scalelevels(self):
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229 for slidermap in self.current_mappings:
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230 try:
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231 v = self.sliderlevels[slidermap.get_mapping()]
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232 slidermap.set_sublevel_var(v)
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233 # print "ESM: Yes submaster named", slidermap.get_mapping()
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234 except KeyError:
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235 name = slidermap.get_mapping()
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236 if name != 'disconnected':
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237 print "ESM: No submaster named", name
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238
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239 def get_levels(self):
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240 'Called by changelevels, returns a dict of new values for submasters'
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241 if not self.sliderinput: return {}
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242
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243 self.load_scalelevels() # freshen our input from the submasters
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244
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245 rawlevels = self.sliderinput.get_levels()
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246 for rawlev, slidermap in zip(rawlevels, self.current_mappings):
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247 slidermap.changed_extinput(rawlev)
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248
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249 return dict([m.get_level_pair()
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250 for m in self.current_mappings
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251 if m.issynced()])
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252 def draw_interface(self):
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253 self.reallevellabels = []
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254 subchoiceframe = Frame(self, bg='black')
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255 for m in self.current_mappings:
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256 m.draw_interface(subchoiceframe, self.subnames)
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257 subchoiceframe.pack()
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258
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259 presetframe = Frame(self, bg='black')
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260 Label(presetframe, text="Preset:", font=('Arial', 10), bg='black',
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261 fg='white').pack(side=LEFT)
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262 self.presetcombo = ComboBox(presetframe, variable=self.current_preset,
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263 editable=1, command=self.apply_preset,
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264 dropdown=1)
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265 self.presetcombo.slistbox.configure(bg='black')
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266 self.presetcombo.slistbox.listbox.configure(bg='black', fg='white')
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267 self.presetcombo.entry.configure(bg='black', fg='white')
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268 self.draw_presets()
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269 self.presetcombo.pack(side=LEFT)
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270 Button(presetframe, text="Add", padx=0, pady=0, bg='black',
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271 fg='white', font=stdfont,
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272 command=self.add_preset).pack(side=LEFT)
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273 Button(presetframe, text="Delete", padx=0, pady=0, bg='black',
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274 fg='white', font=stdfont,
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275 command=self.delete_preset).pack(side=LEFT)
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276 Button(presetframe, text="Disconnect", padx=0, pady=0, bg='black',
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277 fg='white', font=stdfont,
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278 command=self.disconnect_all).pack(side=LEFT)
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279 Button(presetframe, text="Reload", padx=0, pady=0, bg='black',
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280 fg='white', font=stdfont,
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281 command=self.load_presets).pack(side=LEFT)
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282 presetframe.pack(side=BOTTOM)
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283 def apply_preset(self, preset):
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284 if not preset: return
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285 preset_mapping = self.presets.get(preset)
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286 if not preset_mapping: return
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287 self.disconnect_all()
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288 for subname, slidermap in zip(preset_mapping, self.current_mappings):
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289 slidermap.set_subname(subname)
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290 def delete_preset(self, *args):
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291 del self.presets[self.current_preset.get()]
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292 self.presetcombo.slistbox.listbox.delete(0, END)
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293 self.draw_presets()
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294 self.save_presets()
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295 def add_preset(self, *args):
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296 self.presets[self.current_preset.get()] = [m.get_mapping()
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297 for m in self.current_mappings]
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298 self.presetcombo.slistbox.listbox.delete(0, END)
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299 self.draw_presets()
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300 self.save_presets()
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301 def draw_presets(self):
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302 preset_names = self.presets.keys()
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303 preset_names.sort()
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304 for p in preset_names:
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305 self.presetcombo.slistbox.listbox.insert(END, p)
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306 def disconnect_all(self):
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307 for m in self.current_mappings:
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308 m.disconnect()