tkinter question

[Eric_Dexter at msn.com]

On Oct 26, 7:02 am, "Chuckk Hubbard" <badmuthahubb... at gmail.com>
wrote:
> Hello.
> How about this?  I changed the if statements so the coordinates are
> always updated, but only changed if within the right limits, otherwise
> updated to the existing value.  Now if you drag outside the limits of
> one dimension, it still moves in the other dimension.  Not sure if
> that's what you want.  I'm amazed that this can be so simple, I came
> up with an intricate system for my app, not realizing I could bind
> events to canvas items!
> BTW, I've never come across csoundroutines, can you give me a synopsis
> of what it's for?  I'm using thePythonCsoundAPI.  This is why I
> commented out all the references to csoundroutines, I don't have it
> installed at the moment.
> -Chuckk
>
> #!/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)):
>   for i in range (0, 4):
> #    canv.create_text(10, i *10, text=str(test.instr_number[i]) +
>     canv.create_text(10, i *10, text=str(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
>   '''
>   if 0 < event.x < 200:
>       newx = event.x
>   else: newx = canv.coords('current')[0]
>   if 0 < event.y < 100:
>     newy = event.y
>   else: newy = canv.coords('current')[1]
>   canv.coords('current', newx, newy)
>
> makeFrame(root)
> root.mainloop()
>
>
>
>
>
> On Fri, Oct 3, 2008 at 3:44 PM, Eric_Dex... at msn.com <Eric_Dex... at msn.com> wrote:
> > 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 javacsoundblue).
>
> > #!/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()
> > --
> >http://mail.python.org/mailman/listinfo/python-list
>
> --http://www.badmuthahubbard.com- Hide quoted text -
>
> - Show quoted text -

sorry to take so long to reply...  You should be able to find the
latest version of csound routines in the csound blog..  an older
version is in dex tracker available on source forge..