Re: client side windows - request for testing and reviewing

[Christian Dywan <christian lanedo com>]

Am Wed, 17 Jun 2009 18:52:03 +0200
schrieb Alexander Larsson <alexl redhat com>:

> On Wed, 2009-06-17 at 18:21 +0200, Mikkel Kamstrup Erlandsen wrote:
> > 2009/6/17 Alexander Larsson <alexl redhat com>:
> > > The client side window branch is now feature complete on X11, and
> > > includes API to do offscreen window embedding (with patches for
> > > clutter-gtk availible to test this). Today I merged the latest
> > > master into the branch to make it easy for people to test it (its
> > > got the new so version).
> > >
> > > I fixed the last known (to me) bug yesterday (an obscure WM
> > > interaction issue on loading the saved session), and am running
> > > this as my default Gtk+ without issues.
> > >
> > > The win32 branch is getting some work done by Cody Russell, and
> > > the Quartz backend used to work fine but requires some minor API
> > > change updates (hopefully Richard can do this soon, CC:ed).
> > >
> > > It would be very nice if we could merge this soon. However, to do
> > > that we need more testing and people to look at the code. As
> > > things stand right now I've gotten essentially zero feedback. I
> > > don't know of anyone except the two backend porters who have
> > > built or looked at the code really.
> > >
> > > So, please, please, please, test this code. We need people who run
> > > "uncommon" apps to test it, and we need people to run it on apps
> > > they know really well so we can find minor changes in behaviour.
> > >
> > > Also, anyone who knows gdk or have an interest in this, please
> > > take a look at the code and give feedback.
> > 
> > I think I need some pointers to give some constructive feedback on
> > this. I've now compiled the client-side-windows branch, but I am
> > unsure where to start looking and what to try out.
> 
> That depends on what you want to do. Generally there is not a lot of
> new API in the csw branch, most of it is a total redesign of how gdk
> works internally.
> 
> If you want to test, then just run normal apps like you normally do
> but with the client side window libraries, then try to find places
> where it differs in behaviour from the normal one.
> 
> If you want to review the code, i'd recommend starting in gdkwindow.c,
> it has a long comment at the top describing how windows work in the
> new world, then go from there.
> 
> The new API is mainly about doing offscreen windows:
> * New window type GDK_WINDOW_OFFSCREEN
> * gdk_window_get_offscreen_pixmap: Get the current GdkPixmap for an
> offscreen window
> * gdk_window_set/get_has_offscreen_children: enable embedding of
> offscreen children
> * gdk_window_offscreen_children_changed: Used when the geometry of the
> embedded offscreen windows change
> * a few new signals on GdkWindow to handle offscreen window embedding
> 
> Although there is also a new generic function
> gdk_window_get_root_coords() that gets the root coordinates of any
> point in a window (as opposed to the old gdk_window_get_origin()
> which is not useful when windows may be transformed.
> 
> > And also - is there an easy way to run my existing apps on top of
> > the new libs I've installed in /opt? Like some LD_LIBRARY*-magic...
> 
> Yes, just install in another prefix and run with that in
> LD_LIBRARY_PATH there. Although this will change where gtk modules
> are loaded from so e.g. themes may not work with this.

Define GTK_MODULES and just use your usual themes, see
http://library.gnome.org/devel/gtk/unstable/gtk-running.html

Cheers,
    Christian