Re: [Bug-apl] ⎕plot focus

[Hudson Flavio Meneses Lacerda]

Em Tue, 9 Apr 2019 20:55:30 +0200
Dr. Jürgen Sauermann <address@hidden> escreveu:

> Hi Hudson,
> 
> not sure if I can do anything about this in a portable way.
> 
> One thing that annoyed me in X from day one is that creating a new
> window moves the focus to the new window. If the new window is for
> output only then this is only annoying because you loose the focus in
> the window that you are typing into (I'm a command-line guy).

Hi Jürgen,

Ghostscript traditionally has this same issue. Its plotting window is
cannot be selected from the keyboard (Alt-Tab); when it is clicked, it
stays/becomes visible, but the keyboard input still goes to the shell
window.

With GNU Octave (--no-gui), the plotting window takes the focus and
control (for zoom, grid, etc.), and Alt-Tab brings you again to the
terminal window.

Currently, with GNU APL, the image window blinks and goes to the
_far end_ of the Tab list (at least with my fluxbox version).

I just found that Shift-Alt-Tab solves my question!

(I was trying Alt-Tab, but then I needed to cycle over all windows to
find the figure.)

> 
> For that reason I grabbed the window back automatically after the
> ⎕PLOT window
> was created. If that causes the plot window to be minimized (I don't
> know because
> my machine behaves differently)

(I noticed it does not become minimized.)

> then you could try to comment out the
> following
> lines in *Quad_PLOT.cc* (around line 1330):
> 
>  *        xcb_set_input_focus(conn, XCB_INPUT_FOCUS_PARENT,**
> **                            focusReply->focus, XCB_CURRENT_TIME);**
> *
> If not then please provide a solution to the problem. If it is
> portable (and not creating
> additional dependencies on libraries) then I will include it.
> 
> Apart from that the *wmctrl* approach proposed by *enztec* looks good
> to me.
> 
> Best Regards,
> /// Jürgen

I liked very much the wmctrl approach.

I just wonder whether the ⎕plot window can
be placed as the next (nearest) alternating window. Do you need to use
Shift-Alt-Tab instead of Alt-Tab?

Thanks,
Hudson


> 
> 
> On 4/8/19 6:12 PM, Hudson Flavio Meneses Lacerda wrote:
> > Hi.
> >
> > The ⎕plot window, just after being drawn, jumps to the background
> > (minimized). Is there any way to control its focus from GNU APL?
> >
> > (I do not have GNOME; it looks like FluxBox is not 100% compatible
> > with new GNOME versions.)
> >
> > (My workaround is to memorize the layer as the top.)
> >
> > Hudson
> >
> >
> >
> >  
>