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1 from Tix import *
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2 from time import time # time is on my side
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3 from util import subsetdict
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4 from FlyingFader import FlyingFader
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5 from uihelpers import get_selection
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6
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7 # statuses are:
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8 # stopped - no cue is loaded or cue is stopped
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9 # running - cue is running, not complete
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10 # finished - cue is finished, next is loaded
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11
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12 stdfont = ('Arial', 10)
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13
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14 class Fader(Frame):
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15 'User interface for cue fader'
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16 def __init__(self, master, cues, scalelevels):
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17 self.master = master
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18 self.cues = cues
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19 self.scalelevels = scalelevels
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20 self.time_start = 0
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21 self.init_layout()
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22 self.stop()
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23 def init_layout(self):
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24 Frame.__init__(self, self.master)
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25
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26 # info variables
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27 self.cuename = StringVar()
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28 self.cuelength = DoubleVar()
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29 self.cuetarget = StringVar()
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30
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31 # info about a running cue
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32 self.cuestatus = StringVar() # text description
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33 self.cuestatus.set("stopped")
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34
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35 self.cuepercent = DoubleVar() # percent complete
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36 self.cuepercent.set(0)
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37 self.cuepercent.trace('w', self.update_percent)
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38 self.cuetimeelapse = StringVar() # time elapsed
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39 self.cuetimeelapse.set('0s')
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40 self.cuetimeleft = StringVar() # time left
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41 self.cuetimeleft.set('0s')
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42
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43 buttonframe = Frame(self)
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44 topframe = Frame(self) # to contain cue list and infoframe
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45 infoframe = Frame(topframe)
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46 topframe.pack()
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47
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48 self.listbox = ScrolledListBox(topframe,
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49 command=self.update_selection)
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50 self.listbox.listbox.configure({'exportselection' : 0,
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51 'selectmode' : EXTENDED})
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52 for c in self.cues:
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53 self.listbox.listbox.insert(END, c.name)
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54 self.listbox.pack(side=LEFT)
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55 self.listbox.listbox.bind("<<ListboxSelect>>", self.update_selection,
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56 add=1)
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57 Button(buttonframe, text="Go", command=self.go, font=stdfont,
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58 bg='green').pack(side=LEFT)
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59 Button(buttonframe, text="Stop", command=self.stop, font=stdfont,
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60 bg='red').pack(side=LEFT)
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61 Button(buttonframe, text="Prev", command=self.prev,
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62 font=stdfont).pack(side=LEFT)
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63 nextbutton = Button(buttonframe, text="Next", command=self.next,
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64 font=stdfont)
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65 # Button(buttonframe, text="Load", command=self.mark_start, bg='grey80',
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66 # font=stdfont).pack(side=LEFT)
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67
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68 Label(infoframe, textvariable=self.cuename,
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69 font=('Arial', 12), bg='lightBlue').grid(columnspan=4, sticky=NE+SW)
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70
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71 Label(infoframe, text="Length", font=stdfont,
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72 bg='lightPink').grid(row=1, sticky=NE+SW)
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73 Label(infoframe, textvariable=self.cuelength,
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74 font=stdfont).grid(row=1, column=1, columnspan=3, sticky=NE+SW)
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75
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76 Label(infoframe, text="Target", font=stdfont,
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77 bg='lightPink').grid(row=2, sticky=NE+SW)
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78 Label(infoframe, textvariable=self.cuetarget,
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79 font=stdfont, wraplength=250).grid(row=2, column=1, columnspan=3,
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80 sticky=NE+SW)
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81
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82 Label(infoframe, text="Status", font=stdfont,
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83 bg='lightPink').grid(row=3, sticky=NE+SW)
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84 Label(infoframe, textvariable=self.cuestatus,
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85 font=stdfont).grid(row=3, column=1, columnspan=3, sticky=NE+SW)
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86
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87 Label(infoframe, text="Time Elapsed", font=stdfont,
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88 bg='lightPink').grid(row=4, sticky=NE+SW)
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89 Label(infoframe, textvariable=self.cuetimeelapse,
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90 font=stdfont).grid(row=4, column=1, sticky=NE+SW)
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91
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92 Label(infoframe, text="Time Remain", font=stdfont,
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93 bg='lightPink').grid(row=4, column=2, sticky=NE+SW)
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94 Label(infoframe, textvariable=self.cuetimeleft,
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95 font=stdfont).grid(row=4, column=3, sticky=NE+SW)
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96
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97 Label(infoframe, text="Percent Complete", font=stdfont,
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98 bg='lightPink').grid(row=5, column=0, sticky=NE+SW)
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99 self.percentlabel = Label(infoframe,
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100 font=stdfont)
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101 self.percentlabel.grid(row=5, column=1, columnspan=3, sticky=NE+SW)
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102
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103 # s = Scale(infoframe, variable=self.cuepercent,
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104 s = Scale(buttonframe, variable=self.cuepercent,
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105 showvalue=0, length=220,
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106 width=18, sliderlength=30,
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107 to=100,res=.1,from_=0,bd=1, font=stdfont,
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108 orient='horiz')
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109 # s.grid(row=6, columnspan=4, sticky='ew')
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110 nextbutton.pack(side=RIGHT)
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111 s.pack(side=RIGHT, expand=1, fill=X)
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112
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113 infoframe.pack(side=RIGHT, fill=BOTH, expand=1)
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114 buttonframe.pack(side=BOTTOM, expand=1, fill=X)
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115
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116 self.listbox.listbox.select_set(0)
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117 self.update_selection()
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118 def mark_start(self):
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119 self.time_start = time()
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120 startlevels = dict([(k, v.get()) for k, v in self.scalelevels.items()])
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121 # print "going to mark with", startlevels
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122 self.current.start(startlevels, self.time_start)
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123 def update_percent(self, *args):
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124 if self.cuestatus.get() != 'running':
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125 self.cuestatus.set("running")
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126 self.mark_start()
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127
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128 percent = self.cuepercent.get()
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129 self.percentlabel.config(text='%.1f%%' % percent)
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130 percent /= 100
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131
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132 elapsed = percent * self.current.dur
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133 self.cuetimeelapse.set('%.1fs' % elapsed)
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134 self.cuetimeleft.set('%.1fs' % (self.current.dur - elapsed))
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135
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136 newlevels = self.current.get_levels(self.time_start + elapsed)
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137 # print "newlevels", newlevels
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138 for ch, lev in newlevels.items():
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139 try:
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140 self.scalelevels[ch].set(lev)
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141 except KeyError:
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142 pass
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143
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144 def update_selection(self, *args):
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145 self.cuestatus.set('stopped')
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146 selection = get_selection(self.listbox.listbox)
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147 self.current = self.cues[selection]
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148 self.cuename.set(self.current.name)
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149 self.cuelength.set(self.current.dur)
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150 target = ', '.join(['%s -> %.2f' % (n, lev)
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151 for n, lev in self.current.get_end_levels().items()])
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152 self.cuetarget.set(target)
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153 self.cuetimeelapse.set('0s')
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154 self.cuetimeleft.set('%.1fs' % self.current.dur)
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155 self.cuepercent.set(0)
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156 def go(self):
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157 self.update_selection()
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158 self.cuestatus.set("running")
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159 self.mark_start()
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160 self.running_loop()
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161 def stop(self):
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162 self.cuestatus.set('stopped')
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163 def prev(self):
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164 self.stop()
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165 selection = get_selection(self.listbox.listbox)
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166 if selection != 0:
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167 self.listbox.listbox.select_clear(selection)
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168 self.listbox.listbox.select_set(selection - 1)
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169 self.update_selection()
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170 self.mark_start()
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171 def next(self):
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172 self.stop()
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173 selection = get_selection(self.listbox.listbox)
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174 if selection != self.listbox.listbox.size() - 1:
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175 self.listbox.listbox.select_clear(selection)
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176 self.listbox.listbox.select_set(selection + 1)
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177 self.update_selection()
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178 self.mark_start()
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179 def running_loop(self):
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180 if self.cuestatus.get() == 'stopped':
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181 return
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182 curtime = time()
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183 elapsed = (curtime - self.time_start)
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184
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185 if elapsed > self.current.dur:
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186 self.cuestatus.set('stopped')
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187 self.cuepercent.set(100)
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188
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189 # advance cues if okay
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190 self.next()
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191 return
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192
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193 self.cuepercent.set(100 * elapsed / self.current.dur)
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194 self.after(30, self.running_loop)
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