[ELPA] New package proposal: buffer-expose

[ELPA] New package proposal: buffer-expose

[Clemens Radermacher]

Hi all,

this package provides visual buffer switching using a window grid (see the screenshot in the README).
Code can be found at https://github.com/clemera/buffer-expose. 

-- 
Clemens

Re: [ELPA] New package proposal: buffer-expose

[Uwe Brauer]

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>>> "CR" == Clemens Radermacher <clemens.radermacher@posteo.de> writes:

   > Hi all,

   > this package provides visual buffer switching using a window grid
   > (see the screenshot in the README). Code can be found at
   > https://github.com/clemera/buffer-expose.

Looks very interesting.  Couldn't you put it to MELPA, for easier
testing?

Uwe Brauer 

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Re: [ELPA] New package proposal: buffer-expose

[Uwe Brauer]

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>>> "CR" == Clemens Radermacher <clemens.radermacher@posteo.de> writes:

   > Hi all,

   > this package provides visual buffer switching using a window grid
   > (see the screenshot in the README). Code can be found at
   > https://github.com/clemera/buffer-expose.

I couldn't wait, so I cloned and installed it. Works nicely. However
when byte compiling I obtain 

buffer-expose.el:962:1:Warning: the following functions are not known to be defined:
    aw-switch-to-window, avy-handler-default, aw--lead-overlay,
    aw-update, aw-select


I am using GNU emacs, master from a couple of weeks ago.

Uwe Brauer 

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Re: [ELPA] New package proposal: buffer-expose

[Clemens Radermacher]

> I couldn't wait, so I cloned and installed it. Works nicely. However
> when byte compiling I obtain 
> 
> buffer-expose.el:962:1:Warning: the following functions are not known to be defined:
>     aw-switch-to-window, avy-handler-default, aw--lead-overlay,
>     aw-update, aw-select

Thanks, fixed. Note ace-window is not a dependency it's just optional if you want
to use the command buffer-expose-ace-window. 

Re: [ELPA] New package proposal: buffer-expose

[Uwe Brauer]

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>>> "CR" == Clemens Radermacher <clemens.radermacher@posteo.de> writes:

   >> I couldn't wait, so I cloned and installed it. Works nicely. However
   >> when byte compiling I obtain 
   >> 
   >> buffer-expose.el:962:1:Warning: the following functions are not known to be defined:
   >> aw-switch-to-window, avy-handler-default, aw--lead-overlay,
   >> aw-update, aw-select

   > Thanks, fixed. Note ace-window is not a dependency it's just optional if you want
   > to use the command buffer-expose-ace-window. 

Confirmed: latest commit does not cause any problems when byte
compiling. Thanks.

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Re: [ELPA] New package proposal: buffer-expose

[Stefan Monnier]

> this package provides visual buffer switching using a window grid (see the
> screenshot in the README).
> Code can be found at https://github.com/clemera/buffer-expose. 

Cool!  Looking forward to see it in GNU ELPA (and trying it out on my
currently 218-long buffer-list ;-)


        Stefan

Re: [ELPA] New package proposal: buffer-expose

[Clemens Radermacher]

> Cool!  Looking forward to see it in GNU ELPA (and trying it out on my
> currently 218-long buffer-list ;-)
> 
> 
>         Stefan

I don't keep as many buffers around usually but the view is loaded page by page. 
I just tested it with 351 buffers and it worked without problems :)


-- 
Clemens

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

Hi Clemens,

On Sat, Feb 23, 2019 at 1:10 AM Clemens Radermacher
<clemens.radermacher@posteo.de> wrote:
>
> Hi all,
>
> this package provides visual buffer switching using a window grid (see the screenshot in the README).
> Code can be found at https://github.com/clemera/buffer-expose.

Looking at the screenshot, I have a question: does buffer-expose
automatically zoom out the content of each buffer?  If so, why the
top-right corner is not zoomed out like the rest?

Thank you.

> --
> Clemens

--
Best regards,
Tadeus

Re: [ELPA] New package proposal: buffer-expose

[Clément Pit-Claudel]

On 23/02/2019 12.18, Tadeus Prastowo wrote:
> If so, why the
> top-right corner is not zoomed out like the rest?

The top-right corner seems to be a PNG. IIUC, buffer-expose uses face remapping to scale all faces, but that doesn't affect images.

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

On Sat, Feb 23, 2019 at 7:10 PM Clément Pit-Claudel
<cpitclaudel@gmail.com> wrote:
>
> On 23/02/2019 12.18, Tadeus Prastowo wrote:
> > If so, why the
> > top-right corner is not zoomed out like the rest?
>
> The top-right corner seems to be a PNG. IIUC, buffer-expose uses face remapping to scale all faces, but that doesn't affect images.

Ah, okay, I see that now.  But, is it hard to also re-scale images
automatically?

--
Best regards,
Tadeus

Re: [ELPA] New package proposal: buffer-expose

[Clemens Radermacher]

> Ah, okay, I see that now.  But, is it hard to also re-scale images
> automatically?

It could be done, but I'm not sure if it's worth the effort. I would rather use
an image viewer for something like that.

-- 
Clemens

Re: [ELPA] New package proposal: buffer-expose

[Eli Zaretskii]

> From: Clément Pit-Claudel <cpitclaudel@gmail.com>
> Date: Sat, 23 Feb 2019 13:09:41 -0500
> 
> On 23/02/2019 12.18, Tadeus Prastowo wrote:
> > If so, why the
> > top-right corner is not zoomed out like the rest?
> 
> The top-right corner seems to be a PNG. IIUC, buffer-expose uses face remapping to scale all faces, but that doesn't affect images.

Emacs on master branch can now scale images natively on all platforms,
so this could be improved, I think.

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

On Sat, Feb 23, 2019 at 7:48 PM Clemens Radermacher
<clemens.radermacher@posteo.de> wrote:
>
>
> > Ah, okay, I see that now.  But, is it hard to also re-scale images
> > automatically?
>
> It could be done, but I'm not sure if it's worth the effort. I would rather use
> an image viewer for something like that.

I see.  I ask the question because the screenshot brings up the usual
use-case of seeing iconified GUI windows (in Ubuntu, for example, by
pressing Alt+Tab).  In that use-case, it helps to see iconified images
being zoomed out as well, for example, when using GIMP.

Thank you for responding.

> --
> Clemens

--
Best regards,
Tadeus

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

On Sat, Feb 23, 2019 at 7:51 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Clément Pit-Claudel <cpitclaudel@gmail.com>
> > Date: Sat, 23 Feb 2019 13:09:41 -0500
> >
> > On 23/02/2019 12.18, Tadeus Prastowo wrote:
> > > If so, why the
> > > top-right corner is not zoomed out like the rest?
> >
> > The top-right corner seems to be a PNG. IIUC, buffer-expose uses face remapping to scale all faces, but that doesn't affect images.
>
> Emacs on master branch can now scale images natively on all platforms,
> so this could be improved, I think.

What is the name of the Elisp function to do that?

--
Best regards,
Tadeus

Re: [ELPA] New package proposal: buffer-expose

[Clemens Radermacher]

> I see.  I ask the question because the screenshot brings up the usual
> use-case of seeing iconified GUI windows (in Ubuntu, for example, by
> pressing Alt+Tab).  In that use-case, it helps to see iconified images
> being zoomed out as well, for example, when using GIMP.

I didn't knew it could be done natively with recent Emacs. Maybe I should give
this a try, patches welcome, of course :)

-- 
Clemens

Re: [ELPA] New package proposal: buffer-expose

[Eli Zaretskii]

> From: Tadeus Prastowo <tadeus.prastowo@unitn.it>
> Date: Sat, 23 Feb 2019 20:00:31 +0100
> Cc: Clément Pit-Claudel <cpitclaudel@gmail.com>, 
> 	emacs-devel@gnu.org
> 
> What is the name of the Elisp function to do that?

It's not a function, it's the :scale parameter of the image spec.
Take a look at how image--change-size uses that.

Re: [ELPA] New package proposal: buffer-expose

[Clément Pit-Claudel]

On 23/02/2019 13.59, Tadeus Prastowo wrote:
> On Sat, Feb 23, 2019 at 7:48 PM Clemens Radermacher
> <clemens.radermacher@posteo.de> wrote:
>>
>>
>>> Ah, okay, I see that now.  But, is it hard to also re-scale images
>>> automatically?
>>
>> It could be done, but I'm not sure if it's worth the effort. I would rather use
>> an image viewer for something like that.
> 
> I see.  I ask the question because the screenshot brings up the usual
> use-case of seeing iconified GUI windows (in Ubuntu, for example, by
> pressing Alt+Tab).  In that use-case, it helps to see iconified images
> being zoomed out as well, for example, when using GIMP.

Indeed (relatedly, it would be great to get this feature working smoothly with https://github.com/ch11ng/exwm).
Also, in a copy of emacs built with cairo, it should be possible to render each buffer to be displayed into a cairo surface, and scale that surface losslessly to generate previews.  I wonder how hard this would be to do in practice.

Clément. 

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

On Sat, Feb 23, 2019 at 8:45 PM Eli Zaretskii <eliz@gnu.org> wrote:
>
> > From: Tadeus Prastowo <tadeus.prastowo@unitn.it>
> > Date: Sat, 23 Feb 2019 20:00:31 +0100
> > Cc: Clément Pit-Claudel <cpitclaudel@gmail.com>,
> >       emacs-devel@gnu.org
> >
> > What is the name of the Elisp function to do that?
>
> It's not a function, it's the :scale parameter of the image spec.
> Take a look at how image--change-size uses that.

I see.  That's cool!  Thanks, Eli.

--
Best regards,
Tadeus

Re: [ELPA] New package proposal: buffer-expose

[Tadeus Prastowo]

On Sat, Feb 23, 2019 at 10:24 PM Clément Pit-Claudel
<cpitclaudel@gmail.com> wrote:
> (relatedly, it would be great to get this feature working smoothly with https://github.com/ch11ng/exwm).

Exwm is something I didn't know before.  Thanks for your information.

> Clément.

--
Best regards,
Tadeus