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annotate light8/Xfader.py @ 158:5c7ac46e33d3
more disabling of stuff that make no sense at certain times and some
more disabling of stuff that make no sense at certain times and some
bug fixes. still haven't fixed the scale problem
| author | dmcc |
|---|---|
| date | Mon, 07 Jul 2003 07:39:40 +0000 |
| parents | e04f7b552bcd |
| children |
| rev | line source |
|---|---|
|
51
71489bb71528
- Meet Fader. He is going to grow up and be a crossfader some day
dmcc
parents:
4
diff
changeset
|
1 from Tix import * |
| 0 | 2 from __future__ import division |
| 3 | |
| 4 class Xfader(Canvas): | |
| 5 def __init__(self, scalelevelsIn): | |
| 6 global scalelevels | |
| 7 scalelevels=scalelevelsIn | |
| 8 self.checkbuttons={} | |
| 9 self.startcoord=None | |
| 10 def sub2(self,a,b): | |
| 11 return ( (a[0]-b[0]), (a[1]-b[1])) | |
| 12 def down(self,ev): | |
| 13 global scalelevels | |
| 14 self.startcoord=(ev.x,-ev.y) | |
| 15 self.startlevels = dict([(k,v.get()) for k,v in scalelevels.items()]) | |
| 16 # find the channel names of the selected subs | |
| 17 self.onchannel = { | |
| 18 'x':[x for x in scalelevels.keys() if self.checkbuttons[x]['x'].get()], | |
| 19 'y':[x for x in scalelevels.keys() if self.checkbuttons[x]['y'].get()] | |
| 20 } | |
| 21 | |
| 22 | |
| 23 #self.create_line(0,0,100,100,tag='transient') | |
| 24 | |
| 25 def getoriglevel(self,subname): | |
| 26 return self.startlevels[subname] | |
| 27 def up(self,ev): | |
| 28 self.startcoord=None | |
| 29 self.delete('transient') | |
| 30 # self.clearallbuttons() | |
| 31 def moved(self,ev): | |
| 32 if self.startcoord is None: | |
| 33 return | |
| 34 pos=(ev.x,-ev.y) | |
| 35 deltas= self.sub2(pos,self.startcoord) | |
| 36 for axis,delta in zip(('x','y'),deltas): | |
| 37 onchan=self.onchannel[axis] | |
| 38 for subn in onchan: | |
| 39 newlev = self.getoriglevel(subn) + 1.0*delta/75 | |
| 40 newlev = int(newlev*1000)/1000.0 | |
| 41 newlev = min(1.0,max(newlev,0.0)) | |
| 42 scalelevels[subn].set( newlev ) | |
| 43 def width(self): | |
| 44 return int(self['width']) | |
| 45 def height(self): | |
| 46 return int(self['height']) | |
| 47 def setupwidget(self,parent): | |
| 102 | 48 Canvas.__init__(self,parent,width=150,height=150,bg="grey40") |
| 0 | 49 self.pack(side='bottom') |
| 50 self.create_rectangle(5,5,self.width()-5,self.height()-5) | |
| 51 self.create_line(0,self.height()/2,150,self.height()/2) | |
| 52 self.create_line(self.width()/2,0,self.width()/2,self.height()) | |
| 53 self.bind("<ButtonPress-1>",self.down) | |
| 54 self.bind("<ButtonRelease-1>",self.up) | |
| 55 self.bind("<B1-Motion>",self.moved) | |
| 56 | |
| 57 def registerbutton(self,subname,axis,checkvar): | |
| 58 if subname not in self.checkbuttons: | |
| 59 self.checkbuttons[subname]={} | |
| 60 self.checkbuttons[subname][axis]=checkvar | |
| 61 def clearallbuttons(self, axis='both'): | |
| 62 for cb in self.checkbuttons.values(): | |
| 63 if axis == 'both': | |
| 64 for a in cb.values(): | |
| 65 a.set(0) | |
| 66 else: | |
| 67 cb[axis].set(0) | |
| 68 def grab(self,axis): | |
| 69 self.clearallbuttons(axis) | |
| 70 for n,sv in scalelevels.items(): | |
| 71 if sv.get() and n != 'blacklight': | |
| 72 self.checkbuttons[n][axis].set(1) | |
| 73 | |
| 74 |