Re: [PATCH 3/3] ui/gtk: specify detached window's size and location

[Daniel P . Berrangé]

On Tue, May 03, 2022 at 04:33:48PM -0700, Dongwon Kim wrote:
> I saw windows, especially, third and fourth ones are 1/4 size of
> the first when detached regardless of resolutions.
> 
> And the position is also pretty random and detached windows are usually
> placed somewhere on the previous window.
> 
> This patch is to make the sizes same as the original window's and make
> sure all detached windows are not overlapped each other.

In terms of size, I think you need to just honour the surface
size like this:

@@ -1354,6 +1354,9 @@ static void gd_menu_untabify(GtkMenuItem *item, void 
*opaque)
 
         g_signal_connect(vc->window, "delete-event",
                          G_CALLBACK(gd_tab_window_close), vc);
+        gtk_window_set_default_size(GTK_WINDOW(vc->window),
+                                    surface_width(vc->gfx.ds),
+                                    surface_height(vc->gfx.ds));
         gtk_widget_show_all(vc->window);
 
         if (qemu_console_is_graphic(vc->gfx.dcl.con)) {


for position, I don't think we should be overriding the window
manager placement, as the logic applied could result in us
placing windows off screen.

> 
> On Tue, May 03, 2022 at 10:17:46AM +0100, Daniel P. Berrangé wrote:
> > On Thu, Apr 28, 2022 at 04:13:04PM -0700, Dongwon Kim wrote:
> > > Specify location and size of detached window based on top level
> > > window's location and size info when detachment happens.
> > 
> > Can you explain what problem is being solved by this change ?
> > What's wrong with default size/placement logic ?
> > 
> > In terms of size at least, I would hope we are resizing
> > windows any time the guest changes the resolution of the
> > virtual video adapter.  If there are 2 outputs, they can
> > be at different resolution, so copying the size of the
> > existing window feels wrong - we need to copy the guest
> > resolution currently set.
> > 
> > Why do we need to mess around with position at all ?
> > 
> > > Cc: Philippe Mathieu-Daudé <philmd@redhat.com>
> > > Cc: Paolo Bonzini <pbonzini@redhat.com>
> > > Cc: Gerd Hoffmann <kraxel@redhat.com>
> > > Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
> > > Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
> > > ---
> > >  ui/gtk.c | 13 +++++++++++++
> > >  1 file changed, 13 insertions(+)
> > > 
> > > diff --git a/ui/gtk.c b/ui/gtk.c
> > > index f1ca6a7275..7dadf3b588 100644
> > > --- a/ui/gtk.c
> > > +++ b/ui/gtk.c
> > > @@ -1338,6 +1338,8 @@ static void gd_menu_untabify(GtkMenuItem *item, 
> > > void *opaque)
> > >                                         FALSE);
> > >      }
> > >      if (!vc->window) {
> > > +        gint x, y, w, h;
> > > +        int i;
> > >          gtk_widget_set_sensitive(vc->menu_item, false);
> > >          vc->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
> > >  #if defined(CONFIG_OPENGL)
> > > @@ -1351,7 +1353,18 @@ static void gd_menu_untabify(GtkMenuItem *item, 
> > > void *opaque)
> > >          }
> > >  #endif
> > >          gd_widget_reparent(s->notebook, vc->window, vc->tab_item);
> > > +        gtk_window_get_position(GTK_WINDOW(s->window), &x, &y);
> > > +        gtk_window_get_size(GTK_WINDOW(s->window), &w, &h);
> > > +
> > > +        for (i = 0; i < s->nb_vcs; i++) {
> > > +            if (vc == &s->vc[i]) {
> > > +                break;
> > > +            }
> > > +        }
> > >  
> > > +        gtk_window_move(GTK_WINDOW(vc->window),
> > > +                        x + w * (i % (s->nb_vcs/2) + 1), y + h * (i / 
> > > (s->nb_vcs/2)));
> > > +        gtk_window_resize(GTK_WINDOW(vc->window), w, h);
> > >          g_signal_connect(vc->window, "delete-event",
> > >                           G_CALLBACK(gd_tab_window_close), vc);
> > >          gtk_widget_show_all(vc->window);
> > > -- 
> > > 2.30.2
> > > 
> > > 
> > 
> > With regards,
> > Daniel
> > -- 
> > |: https://berrange.com      -o-    https://www.flickr.com/photos/dberrange 
> > :|
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> > :|
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> > :|
> > 
> 

With regards,
Daniel
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