Re: [pygtk] gtk_clipboard_set_with_data: (skip)
On Fri, Jul 1, 2011 at 14:25, Pavel Holejsovsky pavel.holejsov...@gmail.com wrote: Hi Giuseppe, On 7/1/2011 10:21 AM, Giuseppe Penone wrote: I'm a GTK+ developer that used to work in pygtk2 and now ported the code to pygobject introspection. For my (GPL) application http://giuspen.com/cherrytree I absolutely need the function gtk_clipboard_set_with_data that I see you marhed as NON introspectable. I wanted to ask you that function will ever be binded/what alternative should I use instead. I marked the function as (skip) because AFAIK current version of gobject-introspection really can't handle it; the reason is that this function shares single user_data field for 2 closures (get_func and clear_func), and this is not supported. In order to be supported by current introspection, a new function would have to be added into GTK, which has one user_data for each callback. I think best would be to add a bindable alternative that accepts 2 GClosure arguments. Then bindings can just marshall those and not try to do complex stuff with several user_datas, GDestroyNotify, etc. Plus, if we keep the supported arguments simpler, we can give better error messages when people pass an incorrect number or types of arguments. See the patch in https://bugzilla.gnome.org/review?bug=621092 for an example of how to do this. An alternate solution is to provide some 'manual binding', i.e. binding this function directly, not through introspection. Sorry, I'm not involved with python so I'm not sure how it works. Maybe asking at irc://irc.gnome.org/python could help? Right now we don't carry C extensions to Gtk+ and I hope we don't try to. All the functionality in Gtk+ is supposed to be accessible through bindable APIs, so it's there where we have to fix these. Regards, Tomeu Sorry that I cannot be more helpful, Pavel ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/ ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
Re: [pygtk] gtk_clipboard_set_with_data: (skip)
Hi Giuseppe, On 7/1/2011 10:21 AM, Giuseppe Penone wrote: I'm a GTK+ developer that used to work in pygtk2 and now ported the code to pygobject introspection. For my (GPL) application http://giuspen.com/cherrytree I absolutely need the function gtk_clipboard_set_with_data that I see you marhed as NON introspectable. I wanted to ask you that function will ever be binded/what alternative should I use instead. I marked the function as (skip) because AFAIK current version of gobject-introspection really can't handle it; the reason is that this function shares single user_data field for 2 closures (get_func and clear_func), and this is not supported. In order to be supported by current introspection, a new function would have to be added into GTK, which has one user_data for each callback. An alternate solution is to provide some 'manual binding', i.e. binding this function directly, not through introspection. Sorry, I'm not involved with python so I'm not sure how it works. Maybe asking at irc://irc.gnome.org/python could help? Sorry that I cannot be more helpful, Pavel ___ pygtk mailing list pygtk@daa.com.au http://www.daa.com.au/mailman/listinfo/pygtk Read the PyGTK FAQ: http://faq.pygtk.org/
Re: [pygtk] gtk_clipboard_set_with_data: (skip)
Hello Hart,
I know ctypes because I use them to wrap some xlib functionalities.
I will try this rpythonic wrapper.
Thank you for the tip,
best regards,
Giuseppe.
On Sat, Jul 2, 2011 at 03:33, Hart's Antler bhart...@yahoo.com wrote:
Hi Giuseppe,
Did you already know about the generated ctypes bindings to gtk? It
already supports gtk_clipboard_set_with_data.
gtk_clipboard_set_with_data = _rpythonic_function_(
gtk_clipboard_set_with_data,
ctypes.c_int, [
(clipboard, ctypes.POINTER(_GtkClipboard)),
(targets, ctypes.POINTER(_GtkTargetEntry)),
(n_targets, ctypes.c_uint),
(get_func, ctypes.CFUNCTYPE(ctypes.c_void_p,
ctypes.POINTER(_GtkClipboard),ctypes.POINTER(_GtkSelectionData),ctypes.c_uint,ctypes.POINTER(ctypes.c_void_p),)),
(clear_func, ctypes.CFUNCTYPE(ctypes.c_void_p,
ctypes.POINTER(_GtkClipboard),ctypes.POINTER(ctypes.c_void_p),)),
(user_data, ctypes.POINTER(ctypes.c_void_p)),] )
I know no one is interested in using gtk with a ctypes like API, that's too
low level. To make things easy and more like the original pygtk, an object
oriented API is also generated ontop of the low level ctypes API. It here's
a usage example:
import os,sys, time
if '..' not in sys.path: sys.path.append( '..' )
import rpythonic
gtk = rpythonic.module( 'gtk' )
assert gtk
gtk.init()
win = gtk.window_new( gtk.GTK_WINDOW_TOPLEVEL )
win.set_title('hello world')
win.set_default_size( 320, 240 )
def exit(*args): gtk.main_quit()
win.connect( 'destroy', exit )
frame = gtk.frame_new('hello world')
win.add( frame )
button = gtk.button_new_with_label(test)
frame.add( button )
def callback(*args): print('python callback')
button.connect( 'clicked', callback )
win.show_all()
gtk.main()
The latest ctypes gtk is precached in
RPythonic/rpythonic/cache/genctypes/gtk
http://rpythonic.googlecode.com/files/RPythonic-0.3.7.tar.bz2
by the way, there is also a precached version for gtk3.
-hart
--- On *Fri, 7/1/11, Giuseppe Penone gius...@gmail.com* wrote:
From: Giuseppe Penone gius...@gmail.com
Subject: [pygtk] gtk_clipboard_set_with_data: (skip)
To: phol...@src.gnome.org
Cc: pygtk pygtk@daa.com.au
Date: Friday, 1 July, 2011, 1:21 AM
Hi Pavel,
I'm a GTK+ developer that used to work in pygtk2 and now ported the code to
pygobject introspection.
For my (GPL) application http://giuspen.com/cherrytree I absolutely need
the function gtk_clipboard_set_with_data
that I see you marhed as NON introspectable.
I wanted to ask you that function will ever be binded/what alternative
should I use instead.
Thank you and best regards,
Giuseppe.
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Re: [pygtk] gtk_clipboard_set_with_data: (skip)
Hi Giuseppe, Did you already know about the generated ctypes bindings to gtk?
It already supports gtk_clipboard_set_with_data.
gtk_clipboard_set_with_data = _rpythonic_function_(
gtk_clipboard_set_with_data, ctypes.c_int, [ (clipboard,
ctypes.POINTER(_GtkClipboard)), (targets,
ctypes.POINTER(_GtkTargetEntry)), (n_targets, ctypes.c_uint),
(get_func,ctypes.CFUNCTYPE(ctypes.c_void_p,
ctypes.POINTER(_GtkClipboard),ctypes.POINTER(_GtkSelectionData),ctypes.c_uint,ctypes.POINTER(ctypes.c_void_p),)),
(clear_func, ctypes.CFUNCTYPE(ctypes.c_void_p,
ctypes.POINTER(_GtkClipboard),ctypes.POINTER(ctypes.c_void_p),)),
(user_data, ctypes.POINTER(ctypes.c_void_p)),] )
I know no one is interested in using gtk with a ctypes like API, that's too low
level. To make things easy and more like the original pygtk, an object
oriented API is also generated ontop of the low level ctypes API. It here's
a usage example:
import os,sys, timeif '..' not in sys.path: sys.path.append( '..' )import
rpythonicgtk = rpythonic.module( 'gtk' )assert gtkgtk.init()win =
gtk.window_new( gtk.GTK_WINDOW_TOPLEVEL )win.set_title('hello
world')win.set_default_size( 320, 240 )def exit(*args):
gtk.main_quit()win.connect( 'destroy', exit )frame = gtk.frame_new('hello
world')win.add( frame )button = gtk.button_new_with_label(test)frame.add(
button )def callback(*args): print('python callback')button.connect( 'clicked',
callback )win.show_all()gtk.main()
The latest ctypes gtk is precached in
RPythonic/rpythonic/cache/genctypes/gtkhttp://rpythonic.googlecode.com/files/RPythonic-0.3.7.tar.bz2
by the way, there is also a precached version for gtk3.-hart
--- On Fri, 7/1/11, Giuseppe Penone gius...@gmail.com wrote:
From: Giuseppe Penone gius...@gmail.com
Subject: [pygtk] gtk_clipboard_set_with_data: (skip)
To: phol...@src.gnome.org
Cc: pygtk pygtk@daa.com.au
Date: Friday, 1 July, 2011, 1:21 AM
Hi Pavel,
I'm a GTK+ developer that used to work in pygtk2 and now ported the code to
pygobject introspection.
For my (GPL) application http://giuspen.com/cherrytree I absolutely need the
function gtk_clipboard_set_with_data
that I see you marhed as NON introspectable.
I wanted to ask you that function will ever be binded/what alternative should I
use instead.
Thank you and best regards,
Giuseppe.
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