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Wonderful, Olivier. That worked
perfectly.
Thanks so much; you've been a great
help.
Art Hunkins
----- Original Message -----
Sent: Friday, August 26, 2011 9:55
PM
Subject: Re: [Csnd] Python help
please
Hi Art,
Why don't you call the clicked() method on those
buttons you want to intialize to 1... Just after their creation:
butt =
self.w.button(self.b6, "Filter", "Low-cut
Filter?")
butt.clicked()
buttcallback() will be called and
i[2] switched to
1.
Olivier
p.s.: A gtk.Button has no state, it's more like a
trigger... It is the third value of self.buttons in the button() method that
created a button more like a toggle...
2011/8/26 Art Hunkins <abhunkin@uncg.edu>
Olivier,
Thanks so much; it works perfectly. With your
suggestions, I was even able to display 25 buttons in a single "for i in"
construction!
One last question:
Do you have any idea how to initialize a normal
gtk.Button to the "on" state, rather than the usual "off"?
My code is:
self.w.button(self.b6, "Filter",
"Low-cut Filter?")
The idea is to have "Filter" initially send a value of
1 to Csound rather than than 0, with the first switch being from "on" to
"off."
Here's the code called from Victor
Lazzarini's csndsugui.py:
def button(self,box,
title="",label=""):
"""Creates a
button
(on/off)
box: parent
box
title:
if given, the button
name,
which will also be the bus
channel
name. Otherwise a default name
is
given, BN, where N is button
number
in order of
creation.
label: if given, an alternative button
name,
which will be displayed instead of
title
returns the widget instance"""
self.butts = self.butts + 1
if title
== "":
title = "B%d" %
self.butts
if label == "": name =
title
else: name =
label
butt = gtk.Button(" %s " %
name)
self.scale_font(butt.child)
butt.modify_bg(gtk.STATE_PRELIGHT, gtk.gdk.Color(0x8000,0x8000,0x8000,
2))
box.pack_start(butt, False,
False, 1)
self.buttons.append([butt,title,0])
butt.connect("clicked",
self.buttcallback)
butt.show()
return butt
def buttcallback(self,
widget, data=None):
for i in
self.buttons:
if i[0] ==
widget:
if i[2]:
i[2]
= 0
i[0].modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color(0x8000,0x8000,0x8000,
2))
i[0].modify_bg(gtk.STATE_PRELIGHT, gtk.gdk.Color(0x8000,0x8000,0x8000,
2))
else:
i[2] =
1
i[0].modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color(0,0x7700,0,
1))
i[0].modify_bg(gtk.STATE_PRELIGHT, gtk.gdk.Color(0,0x7700,0,
2))
self.set_channel(i[1], i[2])
Thanks again for all your help.
Art Hunkins
----- Original Message -----
Sent: Friday, August 26, 2011 5:32
PM
Subject: Re: [Csnd] Python help
please
gtk.Container defined a method child_get_property(child,
property_name ).
You can use it to retrieve the position of the child. Can't try it because
I'm on OSX actually, but it will look like this: index =
self.b3box.child_get_property(widget, "position") I think
everything you need is on this page: http://www.pygtk.org/docs/pygtk/class-gtkcontainer.htmlOlivier
2011/8/26 Art Hunkins <abhunkin@uncg.edu>
Olivier,
Regarding your suggestion:
def choose(self,
widget):
index = self.b3box.get_position(widget)
get_position is not implemented, as you
suspected (an error message states so).
However, self.b3box is generated by
gtk.Hbox which is a child of gtk.Box.
One of the child properties of gtk.Box is
"position" - which is exactly the value I need.
But
index =
self.b3box.position(widget)
and random variants thereof that I've
tried have led nowhere.
The error message: Attribute Error:
"gtk.Hbox" object has no attribute "position"
Any suggestion?
Art Hunkins
----- Original Message -----
Sent: Friday, August 26, 2011
3:46 PM
Subject: Re: [Csnd] Python help
please
I have not used gtk for a while but I'm
sure this line doesn't work: but6 =
win.cbbutton(self.b3box, self.choose(self, 1), " 1")
You
execute self.choose inside the definition of the widget, but what you
want to do is to pass a callback reference to the widget, something
like:
but6 =
win.cbbutton(self.b3box, self.choose, " 1")
The signature of the callback function is defined
inside win.cbutton, I don't think it's a good idea to try to modify
it.
Every buttons will call the same function with the widget in
argument, so you have to grab the index from the widget... maybe the
index inside the box self.b3box:
def choose(self,
widget):
index = self.b3box.get_position(widget)
# this is only the idea, I don't know if get_position is implemented
in the class used to create self.b3box...
Olivier
2011/8/26 Art Hunkins <abhunkin@uncg.edu>
Thanks both to Andres and
Olivier.
Using both of your suggestions, I
modified my Python script segments to the following. However I'm
missing something related to "index" (do I need to declare it?), and
get various error messages related to the choose function. Can you
see what I'm doing wrong?
self.paths =
["0"]*26
self.jobjects =
[None]*26
def choose(self, index, widget):
chooser = ObjectChooser(parent=self,
what_filter=mime.GENERIC_TYPE_AUDIO)
result =
chooser.run()
if result ==
gtk.RESPONSE_ACCEPT:
self.jobject[index] =
chooser.get_selected_object()
self.paths[index] =
str(self.jobjects[index].get_file_path())
else:
self.jobject[index] =
None
self.path[index] = "0"
def send_data(self):
for i in
range(26):
self.w.set_filechannel("file%d" % i,
self.paths[i])
Choose is being called by one of 26
cbbuttons (from csndsugui, which is what win. refers to), as
in:
but6 =
win.cbbutton(self.b3box, self.choose(self, 1), " 1")
This may
well be the source of my problem.
Am I perhaps passing the index value 1
to the choose function incorrectly? (I tried: self.choose(self,
index=1), "1"
which made no difference.
Thanks again for your
help.
Art Hunkins
----- Original Message -----
Sent: Friday, August 26, 2011
5:53 AM
Subject: Re: [Csnd] Python
help please
Hi Art,
Additionally, you could add the index input to
the choose function:
def choose (self, index,
widget)
Cheers,
Andres
On Wed Aug 24 16:13:31 2011 Olivier Bélanger
wrote:
self.path0 -> self.path25 must be a list where you store
your paths: Same thing for self.jobjects... (not sure you
really need to keep references to those
objects). self.paths = ["0"]*26 self.jobjects =
[None]*26 def choose(self, widget):
which = something here to grab the order of
"widget" ....
self.paths[which] =
str(self.jobjects[which].get_file_path()) def
send_data(self): for i in
range(26):
self.w.set_filechannel("file%d" % i,
self.paths[i]) Olivier
2011/8/24 Art Hunkins <abhunkin@uncg.edu>
I've written a Python script for a new
XO/Sugar activity for children (SamplePlay).
It includes 26
buttons that allow a user to select (from the Journal) up to 26
audio
samples/loops to play. AFAIK, the "filename" must be
sent to Csound as a
discrete variable, on its own channel
(see below).
As a result, I've 26 iterations(!) (0-25) of
the same basic code. I'd like
to simplify it if possible (the
code itself works fine). Any suggestions from
you
Python/Csound enthusiasts are very much welcomed. (The code
references
Victor's csndsugui.py, but I don't think this is
significant her
self.path0 = "0"
(up
through)
self.path25 = "0"
self.jobject0 =
None
(through)
self.jobject25 =
None
def choose0(self, widget):
chooser =
ObjectChooser(parent=self,
what_filter=mime.GENERIC_TYPE_AUDIO)
result =
chooser.run()
if result ==
gtk.RESPONSE_ACCEPT:
self.jobject0 =
chooser.get_selected_object()
self.path0 =
str(self.jobject0.get_file_path())
else:
self.jobject0 = None
self.path0 =
"0"
(through)
def choose25(self,
widget):
chooser = ObjectChooser(parent=self,
what_filter=mime.GENERIC_TYPE_AUDIO)
result =
chooser.run()
if result ==
gtk.RESPONSE_ACCEPT:
self.jobject25 =
chooser.get_selected_object()
self.path25 =
str(self.jobject25.get_file_path())
else:
self.jobject25 = None
self.path25 =
"0"
def
send_data(self):
self.w.set_filechannel("file0",
self.path0)
self.w.set_filechannel("file1",
self.path1)
(through)
self.w.set_filechannel("file24",
self.path24)
self.w.set_filechannel("file25",
self.path25)
Hoping (as a Python novice) to be shown
a more efficient way; I'm in the dark -
Art
Hunkins
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