[Discuss] Make a thinner Glib/GTK+ to fit tiny device better

2015-10-12 Thread cee1 
Hi all,

I'm thinking and interested in the idea of running Glib/GTK+ based
applications on tiny devices, e.g. wearable devices.

I notice Tizen employs EFL because it is lightweight and fast. But
when went through the code, it seems terrible and in a mess.

Glib is clean and elegant, and with the incoming GSK, GTK+ will be
polished. I'm thinking how to make Glib/GTK+ thinner ( to make memory
footprint comparable with EFL's , though I haven't found any 'GTK+ vs
EFL' benchmark yet...)

And here are some rough thoughts:
1. Make Glib/GTK+ more modular for building, e.g. a configuration
system similar to linux kernel's. Autoconf do support select in/out
optional modules, but will be too many configure args with a huge
options.

2. I notice EFL use some "COW" logic[1], but we already have a much
clean implementation in GStreamer, that's
gst_mini_object_make_writable[2]. Then we may merge GstMiniObject back
to glib?

3. Remove extra layers. E.g. the malloc implementations in nowadays
are very powerfull(e.g. jemalloc), hence GSlice can be retired(which
otherwise introduces an extra cache layer).Also I'm thinking about
providing APIs to make GTK+(also GIO) easily integrated to other event
loop, then we use epoll() on Linux, kqueue() onBSD or even
libdispatch[3] - client code can use simpler event loop(e.g. no locks,
no recursive main loop support)



---
1. https://docs.enlightenment.org/stable/efl/group__Eina__Cow__Group.html
2. 
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstMiniObject.html#gst-mini-object-make-writable
3. 
https://github.com/cee1/cee1.archive/blob/master/documents/libdispatch-event.pdf


- Regards,

- cee1
___
gtk-devel-list mailing list
gtk-devel-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-devel-list

Re: TypeError in GtkWindow

2015-10-12 Thread Germán Racca 

On 10/09/2015 09:25 AM, Felipe Borges wrote:

As mentioned by Stefan, Coor2MASS was expecting a GtkWindow (the
parent window), and you are passing a TitleBar object.

Try something like this:

diff --git a/q2MASS.py b/q2MASS.py
index 43af88c..6b6a6d7 100644
--- a/q2MASS.py
+++ b/q2MASS.py
@@ -37,7 +37,7 @@ class Query2MASS(Gtk.Window):
  self.set_border_width(10)

  # add headerbar
-tb = TitleBar()
+   tb = TitleBar(self)
  titlebar = tb.headerbar()
  self.set_titlebar(titlebar)

@@ -62,7 +62,9 @@ class Query2MASS(Gtk.Window):
  class TitleBar:
  """Create the header bar"""

-def __init__(self):
+def __init__(self, parent):
+self.parent = parent
+
  """Initialize the class"""
  # create left and right headers
  self.left_header = Gtk.Grid()
@@ -131,7 +133,7 @@ class TitleBar:
  def on_button_coor_clicked(self, widget):
  """Close popover and show Coordinates options"""
  self.popover_opts.hide()
-coor = Coor2MASS(self)
+   coor = Coor2MASS(self.parent)
  resp = coor.run()
  if resp == Gtk.ResponseType.OK:
  print("Clicked OK!")


Hi Felipe,

That really worked! Thank you for your time!

All the best,
Germán.

--
Germán A. Racca
Fedora Package Maintainer
https://fedoraproject.org/wiki/User:Skytux
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list

Re: TypeError in GtkWindow

2015-10-12 Thread Germán Racca 

On 10/09/2015 08:21 AM, Stefan Salewski wrote:

On Thu, 2015-10-08 at 22:05 -0300, Germán Racca wrote:

About "coor.run()", I have followed the exact steps in the official
PyGObject tutorial:

https://python-gtk-3-tutorial.readthedocs.org/en/latest/dialogs.html#c
ustom-dialogs


Good to know :-)

Well, I do not know much about Python.

But the difference seems to be obviously. You have

class TitleBar:

and call

coor = Coor2MASS(self)

So for you self is not a widget at all, but it should, it is used as
parent widget!

In the Python tutorial we have

class DialogWindow(Gtk.Window):

Here self is a Gtk.Window.

Can not say you exactly how to solve your problems, but you should get
the idea. Or maybe ask in a Python list/forum when Python itself is the
problem.

Thanks for your advises! As you can see, I'm not so good when it comes 
to OOP...


All the best,
Germán.

--
Germán A. Racca
Fedora Package Maintainer
https://fedoraproject.org/wiki/User:Skytux
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list