"Book-like" text rendering

"Book-like" text rendering

[Dmitry Antipov]

With modern wide (16:9 or 16:10) screens, there is the following question:
is it reasonable/usable to have a feature to render the text in two horizontally
adjacent windows like it's "rendered" in the book?

I.e. with the following window layout (both A and B has, say, 50 lines):

+-----------+-----------+
| A         | B         |
|           |           |
|           |           |
|           |           |
|           |           |
|           |           |
+-----------+-----------+

1000-lines text is initially 1..50 lines in A and 51..100 lines in B, with
current window A. When the cursor is at line 50 of A and moved to next line,
it goes to window B, line 1 (of window B and so line 51 of the text); when
the cursor is at line 50 of window B and moved to next line, it goes back to
line 1 of window A, and text is scrolled in both windows so A shows lines
101..150 and B shows lines 151..200, etc.

Dmitry

Re: "Book-like" text rendering

[David Engster]

Dmitry Antipov writes:
> With modern wide (16:9 or 16:10) screens, there is the following question:
> is it reasonable/usable to have a feature to render the text in two horizontally
> adjacent windows like it's "rendered" in the book?

Have a look at `follow-mode'.

-David

Re: "Book-like" text rendering

[Teemu Likonen]

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Dmitry Antipov [2013-09-25 17:42:29 +04:00] wrote:

> With modern wide (16:9 or 16:10) screens, there is the following
> question: is it reasonable/usable to have a feature to render the text
> in two horizontally adjacent windows like it's "rendered" in the book?
> +-----------+-----------+
> | A         | B         |
> |           |           |
> |           |           |
> |           |           |
> |           |           |
> |           |           |
> +-----------+-----------+

Like follow-mode?


follow-mode is an interactive autoloaded compiled Lisp function in
`follow.el'.

[...]

Follow mode is a minor mode that combines windows into one tall
virtual window.  This is accomplished by two main techniques:

* The windows always displays adjacent sections of the buffer.
  This means that whenever one window is moved, all the
  others will follow.  (Hence the name Follow mode.)

* Should the point (cursor) end up outside a window, another
  window displaying that point is selected, if possible.  This
  makes it possible to walk between windows using normal cursor
  movement commands.

Follow mode comes to its prime when used on a large screen and two
side-by-side windows are used.  The user can, with the help of Follow
mode, use two full-height windows as though they would have been
one.  Imagine yourself editing a large function, or section of text,
and being able to use 144 lines instead of the normal 72... (your
mileage may vary).


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Re: "Book-like" text rendering

[Dmitry Antipov]

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On 09/25/2013 06:00 PM, David Engster wrote:

> Have a look at `follow-mode'.

0) Yes, this is quite similar (although cursor movement is not quite similar
    to what human eye does while reading the book).

1) The name looks totally misleading; I suspected that such a feature was
    implemented long time ago, but it didn't come to my mind to look around
    `follow' keyword. IMHO the name should include the word `text' at least.

2) (Sorry for the huge image) This happens when I tried to search for
    `Lisp_Object' string: matches are highlighted in left window, but not
    in the right one.  Isn't it a bug?

Dmitry


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Re: "Book-like" text rendering

[Stefan Monnier]

> 2) (Sorry for the huge image) This happens when I tried to search for
>    `Lisp_Object' string: matches are highlighted in left window, but not
>    in the right one.  Isn't it a bug?

follow-mode is a very old package, and it hasn't seen much development
over the years, so yes that's a bug, among probably many others that can
show up because follow-mode was not adapted for (or taken into account
by) some new feature/package.
Patches welcome,


        Stefan

Re: "Book-like" text rendering

[William Xu]

Dmitry Antipov <dmantipov@yandex.ru> writes:

> On 09/25/2013 06:00 PM, David Engster wrote:
>
>> Have a look at `follow-mode'.
>
> 0) Yes, this is quite similar (although cursor movement is not quite similar
>    to what human eye does while reading the book).
>
> 1) The name looks totally misleading; I suspected that such a feature was
>    implemented long time ago, but it didn't come to my mind to look around
>    `follow' keyword. IMHO the name should include the word `text' at least.
>
> 2) (Sorry for the huge image) This happens when I tried to search for
>    `Lisp_Object' string: matches are highlighted in left window, but not
>    in the right one.  Isn't it a bug?
>

3) Perhaps it can also be made more like reading a book.  e.g, when C-v, i
would expect it scroll up 2 pages:
| page 1 | page 2 |  => | page 3 | page 4 |

But currently it gives you:
| page 2 | page 3 |

which sounds odd.

-- 
William

http://xwl.appspot.com