Mercurial > code > home > repos > light9
annotate light8/Xfader.py @ 59:001646cd5349
all mousewheel events everywhere will now pass up the tree to be caught by
all mousewheel events everywhere will now pass up the tree to be caught by
higher widgets. if things get slow, this might be the problem
| author | drewp |
|---|---|
| date | Tue, 09 Jul 2002 07:36:29 +0000 |
| parents | 71489bb71528 |
| children | e04f7b552bcd |
| 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): | |
| 4 | 48 Canvas.__init__(self,parent,width=150,height=150,bg="#ff0000") |
| 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 |