--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flax/dmxchanedit.py	Wed Jul 03 09:37:57 2002 +0000
@@ -0,0 +1,127 @@
+"""
+
+widget to show all dmx channel levels and allow editing. levels might
+not actually match what dmxserver is outputting.
+
+"""
+from __future__ import nested_scopes,division
+import Tkinter as tk
+import sys
+sys.path.append("../light8")
+import Patch
+from uihelpers import make_frame, colorlabel, eventtoparent
+from dispatch import dispatcher
+
+stdfont = ('Arial', 10)
+
+class Onelevel(tk.Frame):
+    """a name/level pair"""
+    def __init__(self, parent, channelnum):
+        """channelnum is 1..68, like the real dmx"""
+        tk.Frame.__init__(self,parent)
+
+        self.channelnum=channelnum
+        self.currentlevel=0 # the level we're displaying, 0..1
+        
+        # 3 widgets, left-to-right:
+
+        # channel number -- will turn yellow when being altered
+        self.num_lab = tk.Label(self, text=str(channelnum),
+                                width=3, bg='grey40', 
+                                fg='white', font=stdfont,
+                                padx=0, pady=0, bd=0, height=1)
+        self.num_lab.pack(side='left')
+
+        # text description of channel
+        self.desc_lab=tk.Label(self, text=Patch.get_channel_name(channelnum),
+                               width=14, font=stdfont, anchor='w',
+                               padx=0, pady=0, bd=0, 
+                 height=1, bg='black', fg='white')
+        self.desc_lab.pack(side='left')
+        
+        # current level of channel, shows intensity with color
+        self.level_lab = tk.Label(self, width=3, bg='lightBlue',
+                                  font=stdfont, anchor='e', 
+                                  padx=1, pady=0, bd=0, height=1)
+        self.level_lab.pack(side='left')
+
+        self.setlevel(0)
+        self.setupmousebindings()
+        
+    def setupmousebindings(self):
+        def b1down(ev):
+            self.desc_lab.config(bg='cyan')
+            self._start_y=ev.y
+            self._start_lev=self.currentlevel
+#        self.bind("<ButtonPress-1>",b1down)
+        def b1motion(ev):
+            delta=self._start_y-ev.y
+            self.changelevel(self._start_lev+delta*.005)
+#        self.bind("<B1-Motion>",b1motion)
+        def b1up(ev):
+            self.desc_lab.config(bg='black')
+#        self.bind("<B1-ButtonRelease>",b1up)
+
+        # make the buttons work in the child windows
+        for w in self.winfo_children():
+            for e,func in (('<ButtonPress-1>',b1down),
+                           ('<B1-Motion>',b1motion),
+                           ('<ButtonRelease-1>',b1up)):
+                w.bind(e,func)
+#                w.bind(e,lambda ev,e=e: eventtoparent(ev,e))
+        
+    def colorlabel(self):
+        """color the level label based on its own text (which is 0..100)"""
+        txt=self.level_lab['text'] or "0"
+        lev=float(txt)/100
+        low=(80,80,180)
+        high=(255,55,050)
+        out = [int(l+lev*(h-l)) for h,l in zip(high,low)]
+        col="#%02X%02X%02X" % tuple(out)
+        self.level_lab.config(bg=col)
+
+    def setlevel(self,newlev):
+        """the main program is telling us to change our
+        display. newlev is 0..1"""
+        self.currentlevel=newlev
+        newlev="%d"%(newlev*100)
+        olddisplay=self.level_lab.cget('text')
+        if newlev!=olddisplay:
+            self.level_lab.config(text=newlev)
+            self.colorlabel()
+
+    def getlevel(self):
+        """returns currently displayed level, 0..1"""
+        return self.currentlevel
+
+    def changelevel(self,newlev):
+
+        """the user is adjusting the level on this widget.  the main
+        program needs to hear about it. then the main program will
+        call setlevel()"""
+
+        dispatcher.send("levelchanged",channel=self.channelnum,newlevel=newlev)
+    
+class Levelbox(tk.Frame):
+    def __init__(self, parent, num_channels=68):
+        tk.Frame.__init__(self,parent)
+
+        self.levels = [] # Onelevel objects
+
+        frames = (make_frame(self), make_frame(self))
+
+        for channel in range(1, num_channels+1):
+
+            # frame for this channel
+            f = Onelevel(frames[channel > (num_channels/2)],channel)
+
+            self.levels.append(f)
+            f.pack(side='top')
+
+        #dispatcher.connect(setalevel,"setlevel")
+
+    def setlevels(self,newlevels):
+        """sets levels to the new list of dmx levels (0..1). list can
+        be any length"""
+        for l,newlev in zip(self.levels,newlevels):
+            l.setlevel(newlev)