I saw this (close to this anyway) lieing around on the internet and
was wanting to use it to define a start point exc but I need the
graphics to stay within a set y coords and I am not realy sure how to
do that. I have no idea on how to bind a min/max y to it. (the
concept is inspired by the java csound blue).
#!/usr/bin/python
from Tkinter import *
import csoundroutines as cs
root = Tk()
global canv
xx = {}
def makeFrame(root):
global canv
test = cs.csdInstrumentlist3('bay-at-night.csd')
canv = Canvas (root, height = 200, width = 350)
for i in range (0, len(test.instr_number)):
canv.create_text(10, i *10, text=str(test.instr_number[i]) +
'...', tags=('movable'))
xx[i] = canv.tag_bind('movable', '<B1-Motion>', slide) #B1-motion
is a drag with left button down
canv.pack()
def slide (event):
'''
triggered when something is dragged on the canvas - move thing
under
mouse ('current') to new position
'''
newx = event.x
if event.y < 10 and event.y > 0:
newy = event.y
canv.coords('current', newx, newy)
makeFrame(root)
root.mainloop()
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