font size switching

font size switching

[Csikos Bela]

Dear context users:

It seems to me that some of the the font size switching commands do not work
as described in the context reference manual (contextref.pdf, 27/09/2013), e.g.
 \tfx. The manual writes on page 109 that "Note that these commands select
font sizes relative to the default, not relative to whatever font size is currently in
effect." But in my case \tfx switches to smaller compared to the size in effect, and
not smaller compared to default size.

In additions I couldn't find command for returning to default size after a font switching
command. How to switch (back) to normal size? 

Here is an MWE:

\starttext

default, {\tfa larger (a)}, {\tfb larger (b)}, {\tfc larger (c)}, {\tfd larger (d)}

default, {\tfx smaller (x)}, {\tfxx smaller (xx)}

This is normal text, (default 10pt).
{\tfa This is larger (a).}
Normal again.
{\tfx This is smaller, (x).}

This is normal size.
\bfa This is larger bold (a).
\tf This is normal larger (a), \backslash tf doesn't change size.

How to switch back to normal size, if there is no suffix for normal size?

\tfx And why isn't this smaller (x) if the suffix changes size relative to default size
as the manual states?

\stoptext


Thank you in advance,

bcsikos
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Re: font size switching

[Pablo Rodriguez]

On 10/17/2016 06:15 PM, Csikos Bela wrote:
> Dear context users:
> 
> It seems to me that some of the the font size switching commands do not work
> as described in the context reference manual (contextref.pdf, 27/09/2013), e.g.
>  \tfx. The manual writes on page 109 that "Note that these commands select
> font sizes relative to the default, not relative to whatever font size is currently in
> effect." But in my case \tfx switches to smaller compared to the size in effect, and
> not smaller compared to default size.
> 
> In additions I couldn't find command for returning to default size after a font switching
> command. How to switch (back) to normal size? 

Hi Csikos,

there is a workaround for that:

    \definefontsize[n]
    \setupbodyfontenvironment[default][n=1]

And then use \tfn.

BTW, font (and language) commands are switches, so they don’t require
text enclosed in parentheses (such as \emph{} in LaTeX). I would
discourage the use of \tfn, but you’re on your own.

x and xx are different font sizes, not x repeated (it could have been
named y or w instead). Here you have the difference:

    \starttext
    default, {\tfx smaller (x) {\tfx not smaller (x again)}}

    default, {\tfx smaller (x) {\tfxx smaller (xx now)}}
    \stoptext

BTW, default body font size is 12pt. I realized when I added and
commented the following command in the preamble:

    \setupbodyfont[12pt]

Just in case it helps,

Pablo
-- 
http://www.ousia.tk
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Re: font size switching

[Csikos Bela]

Pablo Rodriguez írta:
>On 10/17/2016 06:15 PM, Csikos Bela wrote:
>> Dear context users:
>> 
>> It seems to me that some of the the font size switching commands do not work
>> as described in the context reference manual (contextref.pdf, 27/09/2013), e.g.
>>  \tfx. The manual writes on page 109 that "Note that these commands select
>> font sizes relative to the default, not relative to whatever font size is currently in
>> effect." But in my case \tfx switches to smaller compared to the size in effect, and
>> not smaller compared to default size.
>> 
>> In additions I couldn't find command for returning to default size after a font switching
>> command. How to switch (back) to normal size? 
>
>Hi Csikos,
>
>there is a workaround for that:
>
>    \definefontsize[n]
>    \setupbodyfontenvironment[default][n=1]
>
>And then use \tfn.

OK, I see. Thanks.

>
>BTW, font (and language) commands are switches, so they don’t require
>text enclosed in parentheses (such as \emph{} in LaTeX). I would
>discourage the use of \tfn, but you’re on your own.

Do you mean it's better to use e.g. {\bf some text} then \bf{some text}?

>x and xx are different font sizes, not x repeated (it could have been
>named y or w instead). Here you have the difference:
>
>    \starttext
>    default, {\tfx smaller (x) {\tfx not smaller (x again)}}
>
>    default, {\tfx smaller (x) {\tfxx smaller (xx now)}}
>    \stoptext

I know this. What I don't understand is that if I have the code:

\starttext
Default {\tfa Larger} {\tfx Smaller1} \\
Default \tfa Larger \tfx Smaller2
\stoptext

then I have Smaller1 in (x) size and Smaller2 in default size. Why?
I would expect Smaller2 to be in (x) size too (as the manual implies).

Thank you in advance,

bcsikos

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Re: font size switching

[Pablo Rodriguez]

On 10/17/2016 07:31 PM, Csikos Bela wrote:
> Pablo Rodriguez írta:
>> [...]
>> BTW, font (and language) commands are switches, so they don’t require
>> text enclosed in parentheses (such as \emph{} in LaTeX). I would
>> discourage the use of \tfn, but you’re on your own.
> 
> Do you mean it's better to use e.g. {\bf some text} then \bf{some text}?

No, I mean that {\bf text} is the only way of using it (afaIk, this is
TeX). See the code:

    \starttext
    \bf{text} tesafe
    \stoptext

All text in the sample is in bold font.

> [...]
> I know this. What I don't understand is that if I have the code:
> 
> \starttext
> Default {\tfa Larger} {\tfx Smaller1} \\
> Default \tfa Larger \tfx Smaller2
> \stoptext
> 
> then I have Smaller1 in (x) size and Smaller2 in default size. Why?
> I would expect Smaller2 to be in (x) size too (as the manual implies).

As far as I can understand, this might be a bug (or an inconsistency in
font size handling, at least). Isn’t it, Wolfgang?

I hope it helps,

Pablo
-- 
http://www.ousia.tk
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Re: font size switching

[Thomas A. Schmitz]

On 10/17/2016 07:31 PM, Csikos Bela wrote:
> Do you mean it's better to use e.g. {\bf some text} then \bf{some text}?

The latter is not valid syntax. You want to read the wiki section on 
font switching: http://wiki.contextgarden.net/Font_Switching

>
>> >x and xx are different font sizes, not x repeated (it could have been
>> >named y or w instead). Here you have the difference:
>> >
>> >    \starttext
>> >    default, {\tfx smaller (x) {\tfx not smaller (x again)}}
>> >
>> >    default, {\tfx smaller (x) {\tfxx smaller (xx now)}}
>> >    \stoptext
> I know this. What I don't understand is that if I have the code:
>
> \starttext
> Default {\tfa Larger} {\tfx Smaller1} \\
> Default \tfa Larger \tfx Smaller2
> \stoptext
>
> then I have Smaller1 in (x) size and Smaller2 in default size. Why?
> I would expect Smaller2 to be in (x) size too (as the manual implies).
>
I'm not sure where you found the sentence you copied in your first mail. 
My copy of contextref.pdf says p. 107: "The various commands will adapt 
themselves to the actual setup of font and size." Which is exactly what 
you see.


Thomas




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Re: font size switching

[Pablo Rodriguez]

On 10/17/2016 07:58 PM, Thomas A. Schmitz wrote:
> On 10/17/2016 07:31 PM, Csikos Bela wrote:
>> [...]
>> then I have Smaller1 in (x) size and Smaller2 in default size. Why?
>> I would expect Smaller2 to be in (x) size too (as the manual implies).
>>
> I'm not sure where you found the sentence you copied in your first mail. 
> My copy of contextref.pdf says p. 107: "The various commands will adapt 
> themselves to the actual setup of font and size." Which is exactly what 
> you see.

Hi Thomas,

I must confess, I haven’t checked the manual. But why doesn’t it happen
the same with other commands?

    \starttext
    \startTEXpage[offset=1em]
    Default {\tfb Larger} {\tfd Larger 1} \\
    Default \tfb Larger \tfd Larger 2
    \stopTEXpage
    \stoptext


Pablo
-- 
http://www.ousia.tk
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Re: font size switching

[Hans Hagen]

On 10/17/2016 8:14 PM, Pablo Rodriguez wrote:
> On 10/17/2016 07:58 PM, Thomas A. Schmitz wrote:
>> On 10/17/2016 07:31 PM, Csikos Bela wrote:
>>> [...]
>>> then I have Smaller1 in (x) size and Smaller2 in default size. Why?
>>> I would expect Smaller2 to be in (x) size too (as the manual implies).
>>>
>> I'm not sure where you found the sentence you copied in your first mail.
>> My copy of contextref.pdf says p. 107: "The various commands will adapt
>> themselves to the actual setup of font and size." Which is exactly what
>> you see.
>
> Hi Thomas,
>
> I must confess, I haven’t checked the manual. But why doesn’t it happen
> the same with other commands?
>
>     \starttext
>     \startTEXpage[offset=1em]
>     Default {\tfb Larger} {\tfd Larger 1} \\
>     Default \tfb Larger \tfd Larger 2
>     \stopTEXpage
>     \stoptext

looks quite ok to me ... grouping works as expected

\starttext

\startTEXpage[offset=1em]
     Default {\tfb Larger} normal {\tfd Larger 1} \\
     Default  \tfb Larger  normal  \tfd Larger 2
\stopTEXpage

\stoptext

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Re: font size switching

[Pablo Rodriguez]

On 10/17/2016 08:28 PM, Hans Hagen wrote:
> On 10/17/2016 8:14 PM, Pablo Rodriguez wrote:
>> [...]
>> I must confess, I haven’t checked the manual. But why doesn’t it happen
>> the same with other commands?
>>
>>     \starttext
>>     \startTEXpage[offset=1em]
>>     Default {\tfb Larger} {\tfd Larger 1} \\
>>     Default \tfb Larger \tfd Larger 2
>>     \stopTEXpage
>>     \stoptext
> 
> looks quite ok to me ... grouping works as expected

Hans,

I totally agree.

The point I was trying to make is that ungrouped font size switches
behave different if when fixed and when not fixed.


Pablo
-- 
http://www.ousia.tk
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Re: font size switching

[Csikos Bela]

"Thomas A. Schmitz" írta:
>On 10/17/2016 07:31 PM, Csikos Bela wrote:
>> Do you mean it's better to use e.g. {\bf some text} then \bf{some text}?
>
>The latter is not valid syntax. You want to read the wiki section on 
>font switching: http://wiki.contextgarden.net/Font_Switching

Thanks. I mixed it up with the mnemonic font switching commands.
I guess I thought that these (\bf \it etc) can be used similarly to \bold etc.

[....]

>> then I have Smaller1 in (x) size and Smaller2 in default size. Why?
>> I would expect Smaller2 to be in (x) size too (as the manual implies).
>>
>I'm not sure where you found the sentence you copied in your first mail. 
>My copy of contextref.pdf says p. 107:

The sentence I cited is on the same page (107/109), the top line.

> "The various commands will adapt 
>themselves to the actual setup of font and size." Which is exactly what 
>you see.

In my understanding this only means that if the current font is bold then an
\it changes the font to bold italic and not normal italic, and if the size is
for example (c) it will keep it and won't change back to normal size. It doesn't
mean that if you have size (b) and use a \tfa the size becomes a magnified
(b) (that is, (c).) According to my understanding using a \tfb should result
a (b) size font independently the currently used size according to the manual.
My question was why \tfx works differently than \tfa. I guess they answered this
in the meantime.

Thanks,

bcsikos

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