Style options and setupinterlinespace

Style options and setupinterlinespace

[denis.maier]

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Hi,

the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:


> These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes. So, if you want to change the font size of an entire paragraph, use \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobodyfont> described below in Complete Font Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_change>. However, it is fine to use them as style directives in setup commands, that is, using them as an option for style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>... in any setup command that accepts style option

From this, I'd infer that a <style=tfx> or <style=\tfx> should change the interline spacing as well. But it does not seem to be the case as the example below shows.

Best,
Denis

----------------------------------------------------------------------------------------------
\definedelimitedtext[blockquoteA]
\setupdelimitedtext[blockquoteA]
                                                               [
                                                               style=tfx,
                                                               spacebefore=medium,
                                                               ]

\definedelimitedtext[blockquoteB]
\setupdelimitedtext[blockquoteB]
                                                               [
                                                               before={\tfx\setupinterlinespace},
                                                               spacebefore=medium,
                                                               ]

\starttext

\input knuth

\startblockquoteA
\input knuth
\stopblockquoteA

\input knuth

\startblockquoteB
\input knuth
\stopblockquoteB

\input knuth

\stoptext
----------------------------------------------------------------------------------------------


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Re: Style options and setupinterlinespace

[denis.maier]

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Hi again,

should I change the wiki or is the current behaviour a bug (that will eventually be corrected)?

Best,
Denis

Von: Maier, Denis Christian (UB)
Gesendet: Donnerstag, 22. April 2021 15:15
An: 'mailing list for ConTeXt users' <ntg-context@ntg.nl>
Betreff: Style options and setupinterlinespace

Hi,

the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:


> These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes. So, if you want to change the font size of an entire paragraph, use \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobodyfont> described below in Complete Font Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_change>. However, it is fine to use them as style directives in setup commands, that is, using them as an option for style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>... in any setup command that accepts style option

From this, I'd infer that a <style=tfx> or <style=\tfx> should change the interline spacing as well. But it does not seem to be the case as the example below shows.

Best,
Denis

----------------------------------------------------------------------------------------------
\definedelimitedtext[blockquoteA]
\setupdelimitedtext[blockquoteA]
                                                               [
                                                               style=tfx,
                                                               spacebefore=medium,
                                                               ]

\definedelimitedtext[blockquoteB]
\setupdelimitedtext[blockquoteB]
                                                               [
                                                               before={\tfx\setupinterlinespace},
                                                               spacebefore=medium,
                                                               ]

\starttext

\input knuth

\startblockquoteA
\input knuth
\stopblockquoteA

\input knuth

\startblockquoteB
\input knuth
\stopblockquoteB

\input knuth

\stoptext
----------------------------------------------------------------------------------------------


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[-- Attachment #2: Type: text/plain, Size: 493 bytes --]

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Re: Style options and setupinterlinespace

[Aditya Mahajan]

> Von: Maier, Denis Christian (UB)
> Gesendet: Donnerstag, 22. April 2021 15:15
> An: 'mailing list for ConTeXt users' <ntg-context@ntg.nl>
> Betreff: Style options and setupinterlinespace
> 
> Hi,
> 
> the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:
> 
> 
> > These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes. So, if you want to change the font size of an entire paragraph, use \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobodyfont> described below in Complete Font Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_change>. However, it is fine to use them as style directives in setup commands, that is, using them as an option for style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>... in any setup command that accepts style option
> 
> From this, I'd infer that a <style=tfx> or <style=\tfx> should change the interline spacing as well. But it does not seem to be the case as the example below shows.

Using style=\tfx is roughly equivalent to typing `\tfx` at an appropriate place. There is no automatic \setupinterlinespace after the style value is executed. 

On Mon, 26 Apr 2021, denis.maier@ub.unibe.ch wrote:

> Hi again,
> 
> should I change the wiki or is the current behaviour a bug (that will eventually be corrected)?

Perhaps, it will be a good idea to add a concluding sentence "However, the previous caveats (no change in interline space or math font sizes) still apply". 


Aditya
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Re: Style options and setupinterlinespace

[Pablo Rodriguez]

On 4/26/21 12:37 PM, denis.maier@ub.unibe.ch wrote:
> Hi again,
>
> should I change the wiki or is the current behaviour a bug (that will
> eventually be corrected)?

Hi Denis,

sorry for the delayed reply.

I don’t think it’s a bug, but a feature.

>
> the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:
>
>> These quick font switches are meant for changing the font style,
>> alternative, or size of a few words: they do not change the bodyfont, so
>> they don't affect interline spacing or math font sizes. So, if you want
>> to change the font size of an entire paragraph, use \switchtobodyfont
>> <https://wiki.contextgarden.net/Command/switchtobodyfont> described
>> below in Complete Font Change
>> <https://wiki.contextgarden.net/Font_Switching#Complete_font_change>.
>> However, it is fine to use them as style directives in setup commands,
>> that is, using them as an option for |style=
>> <https://wiki.contextgarden.net/Style_and_Color_Parameters>...| in any
>> setup command that accepts |style| option
>
> From this, I’d infer that a «style=tfx» or «style=\tfx» should change
> the interline spacing as well. But it does not seem to be the case as
> the example below shows.

To change interlinespace you need either to use \switchtobodyfont[x] or
\tfx\setupinterlinespace.

In my experience, \tfx doesn’t behave in a different way as a value for
a style key than in standard text.

Just in case it helps,

Pablo
--
http://www.ousia.tk
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Re: Style options and setupinterlinespace

[Wolfgang Schuster]

Aditya Mahajan schrieb am 26.04.2021 um 18:02:
>> Von: Maier, Denis Christian (UB)
>> Gesendet: Donnerstag, 22. April 2021 15:15
>> An: 'mailing list for ConTeXt users' <ntg-context@ntg.nl>
>> Betreff: Style options and setupinterlinespace
>>
>> Hi,
>>
>> the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:
>>
>>
>>> These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes. So, if you want to change the font size of an entire paragraph, use \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobodyfont> described below in Complete Font Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_change>. However, it is fine to use them as style directives in setup commands, that is, using them as an option for style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>... in any setup command that accepts style option
>>  From this, I'd infer that a <style=tfx> or <style=\tfx> should change the interline spacing as well. But it does not seem to be the case as the example below shows.
> Using style=\tfx is roughly equivalent to typing `\tfx` at an appropriate place. There is no automatic \setupinterlinespace after the style value is executed.

There is always the option to use \switchtobodyfont to change the font 
size which affects also the linespacing but in this case one need 
\setupinterlinespace after \tfx.

In older versions (a few months ago) even \switchtobodyfont didn't help 
here when you used the style-key to change the font size.

Wolfgang

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Re: Style options and setupinterlinespace

[denis.maier]

Thanks everyone for your answers.
In that case I'll change the wording in the wiki.

All best,
Denis

> -----Ursprüngliche Nachricht-----
> Von: ntg-context <ntg-context-bounces@ntg.nl> Im Auftrag von Wolfgang
> Schuster
> Gesendet: Montag, 26. April 2021 19:28
> An: mailing list for ConTeXt users <ntg-context@ntg.nl>
> Betreff: Re: [NTG-context] Style options and setupinterlinespace
> 
> Aditya Mahajan schrieb am 26.04.2021 um 18:02:
> >> Von: Maier, Denis Christian (UB)
> >> Gesendet: Donnerstag, 22. April 2021 15:15
> >> An: 'mailing list for ConTeXt users' <ntg-context@ntg.nl>
> >> Betreff: Style options and setupinterlinespace
> >>
> >> Hi,
> >>
> >> the wiki (https://wiki.contextgarden.net/Font_Switching) currently says:
> >>
> >>
> >>> These quick font switches are meant for changing the font style,
> >>> alternative, or size of a few words: they do not change the
> >>> bodyfont, so they don't affect interline spacing or math font sizes.
> >>> So, if you want to change the font size of an entire paragraph, use
> >>>
> \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobod
> >>> yfont> described below in Complete Font
> >>>
> Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_c
> >>> hange>. However, it is fine to use them as style directives in setup
> >>> commands, that is, using them as an option for
> >>> style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>...
> >>> in any setup command that accepts style option
> >>  From this, I'd infer that a <style=tfx> or <style=\tfx> should change the
> interline spacing as well. But it does not seem to be the case as the example
> below shows.
> > Using style=\tfx is roughly equivalent to typing `\tfx` at an appropriate
> place. There is no automatic \setupinterlinespace after the style value is
> executed.
> 
> There is always the option to use \switchtobodyfont to change the font size
> which affects also the linespacing but in this case one need
> \setupinterlinespace after \tfx.
> 
> In older versions (a few months ago) even \switchtobodyfont didn't help
> here when you used the style-key to change the font size.
> 
> Wolfgang
> 
> __________________________________________________________
> _________________________
> If your question is of interest to others as well, please add an entry to the
> Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-
> context
> webpage  : http://www.pragma-ade.nl / http://context.aanhet.net archive  :
> https://bitbucket.org/phg/context-mirror/commits/
> wiki     : http://contextgarden.net
> __________________________________________________________
> _________________________
___________________________________________________________________________________
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___________________________________________________________________________________

Re: Style options and setupinterlinespace

[denis.maier]

Wikified, as per Aditya's suggestion.

Denis

> -----Ursprüngliche Nachricht-----
> Von: Maier, Denis Christian (UB)
> Gesendet: Montag, 26. April 2021 22:50
> An: mailing list for ConTeXt users <ntg-context@ntg.nl>
> Betreff: AW: [NTG-context] Style options and setupinterlinespace
> 
> Thanks everyone for your answers.
> In that case I'll change the wording in the wiki.
> 
> All best,
> Denis
> 
> > -----Ursprüngliche Nachricht-----
> > Von: ntg-context <ntg-context-bounces@ntg.nl> Im Auftrag von Wolfgang
> > Schuster
> > Gesendet: Montag, 26. April 2021 19:28
> > An: mailing list for ConTeXt users <ntg-context@ntg.nl>
> > Betreff: Re: [NTG-context] Style options and setupinterlinespace
> >
> > Aditya Mahajan schrieb am 26.04.2021 um 18:02:
> > >> Von: Maier, Denis Christian (UB)
> > >> Gesendet: Donnerstag, 22. April 2021 15:15
> > >> An: 'mailing list for ConTeXt users' <ntg-context@ntg.nl>
> > >> Betreff: Style options and setupinterlinespace
> > >>
> > >> Hi,
> > >>
> > >> the wiki (https://wiki.contextgarden.net/Font_Switching) currently
> says:
> > >>
> > >>
> > >>> These quick font switches are meant for changing the font style,
> > >>> alternative, or size of a few words: they do not change the
> > >>> bodyfont, so they don't affect interline spacing or math font sizes.
> > >>> So, if you want to change the font size of an entire paragraph,
> > >>> use
> > >>>
> >
> \switchtobodyfont<https://wiki.contextgarden.net/Command/switchtobod
> > >>> yfont> described below in Complete Font
> > >>>
> >
> Change<https://wiki.contextgarden.net/Font_Switching#Complete_font_c
> > >>> hange>. However, it is fine to use them as style directives in
> > >>> hange>setup
> > >>> commands, that is, using them as an option for
> > >>>
> style=<https://wiki.contextgarden.net/Style_and_Color_Parameters>...
> > >>> in any setup command that accepts style option
> > >>  From this, I'd infer that a <style=tfx> or <style=\tfx> should
> > >> change the
> > interline spacing as well. But it does not seem to be the case as the
> > example below shows.
> > > Using style=\tfx is roughly equivalent to typing `\tfx` at an
> > > appropriate
> > place. There is no automatic \setupinterlinespace after the style
> > value is executed.
> >
> > There is always the option to use \switchtobodyfont to change the font
> > size which affects also the linespacing but in this case one need
> > \setupinterlinespace after \tfx.
> >
> > In older versions (a few months ago) even \switchtobodyfont didn't
> > help here when you used the style-key to change the font size.
> >
> > Wolfgang
> >
> >
> __________________________________________________________
> > _________________________
> > If your question is of interest to others as well, please add an entry
> > to the Wiki!
> >
> > maillist : ntg-context@ntg.nl /
> > http://www.ntg.nl/mailman/listinfo/ntg-
> > context
> > webpage  : http://www.pragma-ade.nl / http://context.aanhet.net archive
> :
> > https://bitbucket.org/phg/context-mirror/commits/
> > wiki     : http://contextgarden.net
> >
> __________________________________________________________
> > _________________________
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Re: Style options and setupinterlinespace

[Aditya Mahajan]

On Mon, 26 Apr 2021, denis.maier@ub.unibe.ch wrote:

> Wikified, as per Aditya's suggestion.

I expanded on the description to make it clearer (hopefully). However, as I was testing, I realized that the remark about math font sizes ("These quick font switches [...] do not change the bodyfont, so they don't affect [...] math font size") is no longer true. In LTMX, \tfa correctly scales the math font size as well. 

\starttext
\tfc x$x$x
\stoptext

I am not sure when this behavior changed, but looking at some of my old documents I see that I have been using "\tfc $+$" in some of my tikz code for about 4 years. So, it appears to be a old feature. I am thinking of changing the wiki from:

These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes

to 

These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing.

(so not mention math at all). Let me know if I am misunderstanding something here.


Aditya
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Re: Style options and setupinterlinespace

[Hans Hagen]

On 4/27/2021 5:49 AM, Aditya Mahajan wrote:
> On Mon, 26 Apr 2021, denis.maier@ub.unibe.ch wrote:
> 
>> Wikified, as per Aditya's suggestion.
> 
> I expanded on the description to make it clearer (hopefully). However, as I was testing, I realized that the remark about math font sizes ("These quick font switches [...] do not change the bodyfont, so they don't affect [...] math font size") is no longer true. In LTMX, \tfa correctly scales the math font size as well.
> 
> \starttext
> \tfc x$x$x
> \stoptext
> 
> I am not sure when this behavior changed, but looking at some of my old documents I see that I have been using "\tfc $+$" in some of my tikz code for about 4 years. So, it appears to be a old feature. I am thinking of changing the wiki from:
> 
> These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing or math font sizes
> 
> to
> 
> These quick font switches are meant for changing the font style, alternative, or size of a few words: they do not change the bodyfont, so they don't affect interline spacing.
> 
> (so not mention math at all). Let me know if I am misunderstanding something here.

These tfa tfb .. are often used in titles so that's by the math scales 
along (it's what \synchronizebigmath etc do).

Now, although that is unrelated, there has been a change in the font 
code but that only kicks in when you enable it:

    \enableexperiments[fonts.compact]

you can see the difference in th enumber of reported font instances. You 
can read a bit about it in followingup-fonts. For complex setups is a 
bit faster in loading, it takes less memory, but normally more 
calculations happens so that compensates it.

The imapact in the lmtx code is that (when we go that route) some font 
code can be dropped. The impact on luametatex-the-engine is that all 
font related dimensions have more complex calculations, and of course 
the impact on the math code is even larger because there we also have 
the styles to deal with. On the other hand, we now have basically one 
load of those fonts.

You can do a quick test with

\starttext
     {\ttc x$x$x}
     {\glyphscale 1720 x$x$x}
     {\glyphxscale 1720 x$x$x}
     {\glyphyscale 1720 x$x$x}
\stoptext

you can also imagien that it has an impact on font handling

\starttext
     {\glyphscale 1720 effe}{\glyphxscale 1720 effe}{\glyphyscale 1720 effe}
     {\glyphscale 1720 ef}{\glyphxscale 1720 feef}{\glyphyscale 1720 fe}
\stoptext

because suddenly we have three more properties that distinguishes them.

So, something like this impacts quite some subsystems: font, math, 
backend, interfaces. But I'm not too unhappy with it. The question is, 
when will we make the experiment the default.

Hans

ps. Of course, when enabled, for cjk fonts the load/memory impact is 
more impressive.

-----------------------------------------------------------------
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Re: Style options and setupinterlinespace

[denis.maier]

> -----Ursprüngliche Nachricht-----
> Von: ntg-context <ntg-context-bounces@ntg.nl> Im Auftrag von Aditya
> Mahajan
> Gesendet: Dienstag, 27. April 2021 05:49
> An: mailing list for ConTeXt users <ntg-context@ntg.nl>
> Betreff: Re: [NTG-context] Style options and setupinterlinespace
> 
> On Mon, 26 Apr 2021, denis.maier@ub.unibe.ch wrote:
> 
> > Wikified, as per Aditya's suggestion.
> 
> I expanded on the description to make it clearer (hopefully). 

Thanks. It's much clearer now.

Denis
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