Agency wrote:
I'm still working on the bpm counter.
I need to have at least 2 displays that are not static. One would be a
clock/running time and the other would should the current beat count.
How would I do this in Tkinter? I was thinkning of canvas-text, but
there must be a widget for doing this kind of display. I'm a bit lost
and would appreciate some help.
What's your exact problem here? Is it a problem with the display itself or the
fact that it is not static? As for the display itself, a simple label should be
enough if you use its textvariable option to make changes to its text easier. If
the problem lies in the dynamicity, here is a simple example showing how to
display two dynamic displays at the same time using only Python and Tkinter:
--clock-n-beat.py-------------------------
from Tkinter import *
## Main window
root = Tk()
## The tempo to use for the beat
tempo = 90
## Tkinter variables for clock and beat
clockVar = IntVar()
beatVar = IntVar()
## First beat in measure is 1
beatVar.set(1)
## This function will be called periodically to update the clock
def clockPulse():
## Increase clock value
clockVar.set(1 + clockVar.get())
## Call again current function in 1000 micro-seconds = 1 second
root.after(1000, clockPulse)
## This function will be called periodically to update the beat
def beatPulse():
## Increase beat
beat = beatVar.get() + 1
## Assuming a 4/4 measure, wrap beat if it's too high
if beat > 4:
beatVar.set(1)
else:
beatVar.set(beat)
## Call again this function in the correct amount of micro-seconds
## depending on tempo
root.after(int(60000.0 / tempo), beatPulse)
## Title and display for clock
Label(root, text="Clock:").grid(row=0, column=0, sticky=W)
Label(root, textvariable=clockVar).grid(row=0, column=1, sticky=W)
## Title and display for beat
Label(root, text="Beat:").grid(row=1, column=0, sticky=W)
Label(root, textvariable=beatVar).grid(row=1, column=1, sticky=W)
## Quit button
Button(root, command=root.quit, text='Quit').grid(row=2, column=0, columnspan=2)
## Make sure the first calls to the functions updating the clock and beat
## will be made
root.after(1000, clockPulse)
root.after(int(60000.0 / tempo), beatPulse)
## Go!
root.mainloop()
------------------------------------------
HTH
--
- Eric Brunel <eric dot brunel at pragmadev dot com> -
PragmaDev : Real Time Software Development Tools -
http://www.pragmadev.com 
