visual-line-mode don't play well with org-latex-preview

visual-line-mode don't play well with org-latex-preview

[chris]

Hi all,

```
hello hello hello hello hello hello hello hello hello hello hello hello hello 
hello hello      \(\text {hello hello hello hello hello hello hello hello}\)
```

If you put the above text in a org file, and activate `visual-line-mode` and 
`org-latex-preview`, depending on the length of the initial part of the text, 
the generated png/svg image from latex expression can be displayed in full, 
partially hidden or totally hidden.

That certainly hinder readability.

I've search the web to see if someone else did stumbled on that but haven't 
found anything yet.

Sure enough there isn't an obvious fix that would deal with every cases, like 
when the image is longer that the width of the window of the max column of 
`visual-column-mode`. At least there are different cases to consider.

Best,
Chris

Re: visual-line-mode don't play well with org-latex-preview

[Bruno Barbier]

Hi Chris,

chris <inkbottle007@gmail.com> writes:

> Hi all,
>
> ```
> hello hello hello hello hello hello hello hello hello hello hello hello hello 
> hello hello      \(\text {hello hello hello hello hello hello hello hello}\)
> ```
>
> If you put the above text in a org file, and activate `visual-line-mode` and 
> `org-latex-preview`, depending on the length of the initial part of the text, 
> the generated png/svg image from latex expression can be displayed in full, 
> partially hidden or totally hidden.
>

I'm observing the same behavior.

The preview is not always fully visible.  But, after adding some text
(at least one space after the preview), Emacs wraps as needed, so that
the preview remains visible.  Emacs is just not wrapping correctly in
that edge case, where there is nothing at all after the latex preview.

The behavior looks the same using only text-mode (without using org).
You should probably report this as an Emacs bug (see M-x
report-emacs-bug).

Bruno

Re: visual-line-mode don't play well with org-latex-preview

[chris]

On Thursday, 2 March 2023 20:00:14 CET Bruno Barbier wrote:
> 
> Hi Chris,
> 
> chris <inkbottle007@gmail.com> writes:
> 
> > Hi all,
> >
> > ```
> > hello hello hello hello hello hello hello hello hello hello hello hello hello 
> > hello hello      \(\text {hello hello hello hello hello hello hello hello}\)
> > ```
> >
> > If you put the above text in a org file, and activate `visual-line-mode` and 
> > `org-latex-preview`, depending on the length of the initial part of the text, 
> > the generated png/svg image from latex expression can be displayed in full, 
> > partially hidden or totally hidden.
> >
> 
> I'm observing the same behavior.
> 
> The preview is not always fully visible.  But, after adding some text
> (at least one space after the preview), Emacs wraps as needed, so that
> the preview remains visible. 

That is a very nice workaround.

> Emacs is just not wrapping correctly in
> that edge case, where there is nothing at all after the latex preview.
> 
> The behavior looks the same using only text-mode (without using org).
> You should probably report this as an Emacs bug (see M-x
> report-emacs-bug).

What command for latex preview in text mode? (I'll probably figure that out.)

Yes, I should definitely report that bug.

Thanks a lot,
Chris

> 
> Bruno
> 

Re: visual-line-mode don't play well with org-latex-preview

[Bruno Barbier]

Hi Chris,

chris <inkbottle007@gmail.com> writes:

> On Thursday, 2 March 2023 20:00:14 CET Bruno Barbier wrote: 
>> The behavior looks the same using only text-mode (without using org).
>> You should probably report this as an Emacs bug (see M-x
>> report-emacs-bug).
>
> What command for latex preview in text mode? (I'll probably figure that out.)
>

org-latex-preview. Why ? :-)


> Yes, I should definitely report that bug.

In case it helps you to report the bug, here is the minimal way I found
to reproduce it (no latex, no org):

     #+begin_src elisp
       (let ((b (generate-new-buffer "=bug")))
         (with-current-buffer b
           (dotimes (_ 110) (insert "Hello "))
           (insert-image (svg-image (let ((s (svg-create 250 9)))
                                   (svg-line s 0 0 250 9 :stroke-color "green")
                                   s)))
           (org-mode)
           (visual-line-mode 1)
           (pop-to-buffer b)))
     #+end_src

Bruno

Re: visual-line-mode don't play well with org-latex-preview

[chris]

On Wednesday, 8 March 2023 20:14:53 CET Bruno Barbier wrote:
> 
> Hi Chris,
> 
> chris <inkbottle007@gmail.com> writes:
> 
> > On Thursday, 2 March 2023 20:00:14 CET Bruno Barbier wrote: 
> >> The behavior looks the same using only text-mode (without using org).
> >> You should probably report this as an Emacs bug (see M-x
> >> report-emacs-bug).
> >
> > What command for latex preview in text mode? (I'll probably figure that out.)
> >
> 
> org-latex-preview. Why ? :-)
> 
> 
> > Yes, I should definitely report that bug.
> 
> In case it helps you to report the bug, here is the minimal way I found
> to reproduce it (no latex, no org):
> 
>      #+begin_src elisp
>        (let ((b (generate-new-buffer "=bug")))
>          (with-current-buffer b
>            (dotimes (_ 110) (insert "Hello "))
>            (insert-image (svg-image (let ((s (svg-create 250 9)))
>                                    (svg-line s 0 0 250 9 :stroke-color "green")
>                                    s)))
>            (org-mode)
>            (visual-line-mode 1)
>            (pop-to-buffer b)))
>      #+end_src

Amazing,
Chris

> 
> Bruno
>