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# I think this file is unused?
import sys
import tkinter
import tkinter.constants
class ActivityBar(tkinter.Frame):
def __init__(self, master, length=300, height=20, barwidth=15, interval=50, bg='white', fillcolor='orchid1',\
bd=2, relief=tkinter.constants.GROOVE, *args, **kw):
tkinter.Frame.__init__(self, master, bg=bg, width=length, height=height, *args, **kw)
self._master = master
self._interval = interval
self._maximum = length
self._startx = 0
self._barwidth = barwidth
self._bardiv = length / barwidth
if self._bardiv < 10:
self._bardiv = 10
stopx = self._startx + self._barwidth
if stopx > self._maximum:
stopx = self._maximum
# self._canv = Tkinter.Canvas(self, bg=self['bg'], width=self['width'], height=self['height'],\
# highlightthickness=0, relief='flat', bd=0)
self._canv = tkinter.Canvas(self, bg=self['bg'], width=self['width'], height=self['height'],\
highlightthickness=0, relief=relief, bd=bd)
self._canv.pack(fill='both', expand=1)
self._rect = self._canv.create_rectangle(0, 0, self._canv.winfo_reqwidth(), self._canv.winfo_reqheight(), fill=fillcolor, width=0)
self._set()
self.bind('<Configure>', self._update_coords)
self._running = False
def _update_coords(self, event):
'''Updates the position of the rectangle inside the canvas when the size of
the widget gets changed.'''
# looks like we have to call update_idletasks() twice to make sure
# to get the results we expect
self._canv.update_idletasks()
self._maximum = self._canv.winfo_width()
self._startx = 0
self._barwidth = self._maximum / self._bardiv
if self._barwidth < 2:
self._barwidth = 2
stopx = self._startx + self._barwidth
if stopx > self._maximum:
stopx = self._maximum
self._canv.coords(self._rect, 0, 0, stopx, self._canv.winfo_height())
self._canv.update_idletasks()
def _set(self):
if self._startx < 0:
self._startx = 0
if self._startx > self._maximum:
self._startx = self._startx % self._maximum
stopx = self._startx + self._barwidth
if stopx > self._maximum:
stopx = self._maximum
self._canv.coords(self._rect, self._startx, 0, stopx, self._canv.winfo_height())
self._canv.update_idletasks()
def start(self):
self._running = True
self.after(self._interval, self._step)
def stop(self):
self._running = False
self._set()
def _step(self):
if self._running:
stepsize = self._barwidth / 4
if stepsize < 2:
stepsize = 2
self._startx += stepsize
self._set()
self.after(self._interval, self._step)
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