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1 """
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2
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3 widget to show all dmx channel levels and allow editing. levels might
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4 not actually match what dmxserver is outputting.
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5
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6 """
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7 from __future__ import nested_scopes,division
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8 import Tkinter as tk
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9 import sys
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10 sys.path.append("../light8")
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11 import Patch
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12 from uihelpers import make_frame, colorlabel, eventtoparent
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13 from dispatch import dispatcher
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14
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15 stdfont = ('Arial', 10)
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16
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17 class Onelevel(tk.Frame):
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18 """a name/level pair"""
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19 def __init__(self, parent, channelnum):
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20 """channelnum is 1..68, like the real dmx"""
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21 tk.Frame.__init__(self,parent)
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22
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23 self.channelnum=channelnum
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24 self.currentlevel=0 # the level we're displaying, 0..1
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25
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26 # 3 widgets, left-to-right:
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27
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28 # channel number -- will turn yellow when being altered
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29 self.num_lab = tk.Label(self, text=str(channelnum),
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30 width=3, bg='grey40',
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31 fg='white', font=stdfont,
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32 padx=0, pady=0, bd=0, height=1)
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33 self.num_lab.pack(side='left')
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34
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35 # text description of channel
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36 self.desc_lab=tk.Label(self, text=Patch.get_channel_name(channelnum),
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37 width=14, font=stdfont, anchor='w',
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38 padx=0, pady=0, bd=0,
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39 height=1, bg='black', fg='white')
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40 self.desc_lab.pack(side='left')
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41
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42 # current level of channel, shows intensity with color
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43 self.level_lab = tk.Label(self, width=3, bg='lightBlue',
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44 font=stdfont, anchor='e',
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45 padx=1, pady=0, bd=0, height=1)
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46 self.level_lab.pack(side='left')
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47
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48 self.setlevel(0)
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49 self.setupmousebindings()
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50
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51 def setupmousebindings(self):
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52 def b1down(ev):
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53 self.desc_lab.config(bg='cyan')
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54 self._start_y=ev.y
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55 self._start_lev=self.currentlevel
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56 # self.bind("<ButtonPress-1>",b1down)
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57 def b1motion(ev):
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58 delta=self._start_y-ev.y
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59 self.changelevel(self._start_lev+delta*.005)
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60 # self.bind("<B1-Motion>",b1motion)
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61 def b1up(ev):
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62 self.desc_lab.config(bg='black')
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63 # self.bind("<B1-ButtonRelease>",b1up)
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64
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65 # make the buttons work in the child windows
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66 for w in self.winfo_children():
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67 for e,func in (('<ButtonPress-1>',b1down),
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68 ('<B1-Motion>',b1motion),
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69 ('<ButtonRelease-1>',b1up)):
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70 w.bind(e,func)
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71 # w.bind(e,lambda ev,e=e: eventtoparent(ev,e))
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72
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73 def colorlabel(self):
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74 """color the level label based on its own text (which is 0..100)"""
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75 txt=self.level_lab['text'] or "0"
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76 lev=float(txt)/100
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77 low=(80,80,180)
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78 high=(255,55,050)
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79 out = [int(l+lev*(h-l)) for h,l in zip(high,low)]
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80 col="#%02X%02X%02X" % tuple(out)
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81 self.level_lab.config(bg=col)
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82
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83 def setlevel(self,newlev):
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84 """the main program is telling us to change our
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85 display. newlev is 0..1"""
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86 self.currentlevel=newlev
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87 newlev="%d"%(newlev*100)
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88 olddisplay=self.level_lab.cget('text')
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89 if newlev!=olddisplay:
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90 self.level_lab.config(text=newlev)
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91 self.colorlabel()
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92
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93 def getlevel(self):
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94 """returns currently displayed level, 0..1"""
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95 return self.currentlevel
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96
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97 def changelevel(self,newlev):
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98
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99 """the user is adjusting the level on this widget. the main
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100 program needs to hear about it. then the main program will
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101 call setlevel()"""
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102
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103 dispatcher.send("levelchanged",channel=self.channelnum,newlevel=newlev)
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104
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105 class Levelbox(tk.Frame):
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106 def __init__(self, parent, num_channels=68):
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107 tk.Frame.__init__(self,parent)
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108
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109 self.levels = [] # Onelevel objects
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110
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111 frames = (make_frame(self), make_frame(self))
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112
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113 for channel in range(1, num_channels+1):
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114
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115 # frame for this channel
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116 f = Onelevel(frames[channel > (num_channels/2)],channel)
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117
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118 self.levels.append(f)
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119 f.pack(side='top')
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120
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121 #dispatcher.connect(setalevel,"setlevel")
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122
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123 def setlevels(self,newlevels):
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124 """sets levels to the new list of dmx levels (0..1). list can
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125 be any length"""
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126 for l,newlev in zip(self.levels,newlevels):
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127 l.setlevel(newlev)
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