light9 Changeset - 626aa2179630

Changeset - 626aa2179630

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drewp - 22 years ago 2002-07-07 07:22:12

some naming and defaults tweaks
some naming and defaults tweaks
interrupted fades now go to the new destination at the same rate they were traveling.
not very cool

1 file changed with 27 insertions and 9 deletions:

Widgets/FlyingFader.py

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Widgets/FlyingFader.py

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 from Tkinter import *
 from time import time
 class FlyingFader(Frame):
-    def __init__(self, master, variable, label, time=1.5, font=('Arial', 8),
+    def __init__(self, master, variable, label, fadedur=1.5, font=('Arial', 8),
                  **kw):
         Frame.__init__(self, master)
         self.name = label
         self.variable = variable
-        self.fadelength = time
+        self.fadedur = fadedur
         self.curfade = None
         self.fadetimes = 0, 0
         self.config({'bd':1, 'relief':'raised'})
         scaleopts = {'variable' : variable, 'showvalue' : 0, 'from' : 100,
                      'to' : 0, 'res' : 0.1, 'width' : 20, 'length' : 200}
         scaleopts = {'variable' : variable, 'showvalue' : 0, 'from' : 1.0,
                      'to' : 0, 'res' : 0.001, 'width' : 20, 'length' : 200}
         scaleopts.update(kw)
         self.scale = Scale(self, scaleopts)
         self.vlabel = Label(self, text="0.0", font=font)
+        self.vlabel = Label(self, text="0.0", width=6, font=font)
         self.label = Label(self, text=label, wraplength=40, font=font)
         self.oldtrough = self.scale['troughcolor']
         self.scale.pack(side=TOP, expand=1, fill=BOTH, anchor='c')
         self.vlabel.pack(side=BOTTOM, expand=0, fill=X)
@@ @@ -45,24 +45,42 @@ class FlyingFader(Frame): @@
         self.scale['troughcolor'] = self.oldtrough
     def mousefade(self, evt):
         target = float(self.tk.call(self.scale, 'get', evt.x, evt.y))
         self.newfade(target, evt)
     def isfading(self):
         return self.fadetimes[0] or self.fadetimes[1]
     def newfade(self, newlevel, evt=None, length=None):
         if length is None:
-            length = self.fadelength
+            length = self.fadedur
         mult = 1
         if evt.state & 8 and evt.state & 4: mult = 0.25 # both
         elif evt.state & 8: mult = 0.5 # alt
         elif evt.state & 4: mult = 2   # control
         now = time()
         self.fadetimes = (now, now + (mult * length))
         self.curfade = (self.variable.get(), newlevel)
         if not self.isfading():
             self.fadetimes = (now, now + (mult * length))
             self.curfade = (self.variable.get(), newlevel)
         else:
             # already fading
             t1,t2=self.fadetimes
             v1,v2=self.curfade
             rate = abs((v2-v1)/(t2-t1))
             vnow=self.variable.get()
             newdist=abs(newlevel-vnow)
             newdur=newdist/rate
             self.fadetimes = (now,now+newdur)
             self.curfade=(vnow,newlevel)
         self.scale['troughcolor'] = 'red'
         self.gofade()
     def gofade(self):
@@ @@ -75,13 +93,13 @@ class FlyingFader(Frame): @@
             self.scale['troughcolor'] = self.oldtrough
             return
         percent = (now - start) / (end - start)
         newvalue = (percent * (lend - lstart)) + lstart
         self.variable.set(newvalue)
         colorfade(self.scale, percent)
-        self.after(10, self.gofade)
+        self.after(30, self.gofade)
     def updatelabel(self, *args):
         self.vlabel['text'] = "%.3f" % self.variable.get()
         if self.fadetimes[1] == 0: # no fade
             self.vlabel['fg'] = 'black'
         elif self.curfade[1] > self.curfade[0]:

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