font size

font size

[Arash Bijanzadeh]

Hello ecerybody!
I wanna know if it is possible to change the font size in the X client 
of emacs? and how? please help me!

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A.bejan

Re: font size

[G Anna]

> Date: Tue, 23 Apr 2002 20:54:23 +0430
> From: Arash Bijanzadeh <a.bijanzadeh@linuxiran.org>
> Subj: font size
> 
> Hello ecerybody!
> I wanna know if it is possible to change the font size in the X client 
> of emacs? and how? please help me!

In your ~/.emacs add the following lines.  Remember to choose an
appropriate font.

(setq default-frame-alist
      '((width . 80)
	(height . 40)
	(font . "-misc-fixed-medium-r-normal--15-120-100-100-c-90-iso8859-1")
	(background-color . "black")
	(foreground-color . "light blue")
	(menu-bar-lines . 1)))

Also try shift+left-mouse-button to get the font menu.

HTH

anna

font size

[Massimo Alonzo]

Hi all,

how can I increase fonts size for my Latex/Fortran documents?


Thank you
Massimo

font size

[Baloff]

Hello
I am trying to change the font size.
after reading in info info on how to seach the info. I was able to
find in info emacs ps-font-size should do it.

but when I type ps<tab> in the mini buffer I get

Possible completions are:
ps-despool			   ps-line-lengths
ps-mode				   ps-nb-pages-buffer
ps-nb-pages-region		   ps-print-buffer
ps-print-buffer-with-faces	   ps-print-customize
ps-print-region			   ps-print-region-with-faces
ps-spool-buffer			   ps-spool-buffer-with-faces
ps-spool-region			   ps-spool-region-with-faces

nothing about font size. 

help please

thanks

Re: font size

[Peter Dyballa]

Am 29.07.2005 um 06:24 schrieb Baloff:

> I am trying to change the font size.
>

Try S-down-mouse-1 or M-x mouse-set-font!

--
Greetings

   Pete

Without vi there is only GNU Emacs



--
Mit friedvollen Grüßen

   Pete

Mit Jazz statt Bomben gegen die Taliban!

Re: font size

[Eli Zaretskii]

> From: Baloff <washdc@wash.edu>
> Date: 29 Jul 2005 14:24:37 +1000
> 
> I am trying to change the font size.
> after reading in info info on how to seach the info. I was able to
> find in info emacs ps-font-size should do it.
> 
> but when I type ps<tab> in the mini buffer I get
> 
> Possible completions are:
> ps-despool			   ps-line-lengths
> ps-mode				   ps-nb-pages-buffer
> ps-nb-pages-region		   ps-print-buffer
> ps-print-buffer-with-faces	   ps-print-customize
> ps-print-region			   ps-print-region-with-faces
> ps-spool-buffer			   ps-spool-buffer-with-faces
> ps-spool-region			   ps-spool-region-with-faces
> 
> nothing about font size. 

Try loading ps-print first, like this:

    M-x load-library RET ps-print RET

and then try typing "ps TAB" again.

(Some variables are only defined when the respective package is loaded
into Emacs.)

Btw, ps-font-size is only for the ps-print feature, it will not affect
the fonts used for display.  Are you sure this is what you need?

Re: font size

[Baloff]

Eli Zaretskii <eliz@gnu.org> writes:

> > From: Baloff <washdc@wash.edu>
> > Date: 29 Jul 2005 14:24:37 +1000
> > 
> > I am trying to change the font size.
> > after reading in info info on how to seach the info. I was able to
> > find in info emacs ps-font-size should do it.
> > 
> > but when I type ps<tab> in the mini buffer I get
> > 
> > Possible completions are:
> > ps-despool			   ps-line-lengths
> > ps-mode				   ps-nb-pages-buffer
> > ps-nb-pages-region		   ps-print-buffer
> > ps-print-buffer-with-faces	   ps-print-customize
> > ps-print-region			   ps-print-region-with-faces
> > ps-spool-buffer			   ps-spool-buffer-with-faces
> > ps-spool-region			   ps-spool-region-with-faces
> > 
> > nothing about font size. 
> 
> Try loading ps-print first, like this:
> 
>     M-x load-library RET ps-print RET
> 
> and then try typing "ps TAB" again.
> 
> (Some variables are only defined when the respective package is loaded
> into Emacs.)
> 
> Btw, ps-font-size is only for the ps-print feature, it will not affect
> the fonts used for display.  Are you sure this is what you need?

I am trying to increase the font size displayed on the screen. plus I
don't know what S-down-mouse-1 or M-x mouse-set-font! mean.
what is S-down-mouse-1 any way?

Re: font size

[Peter Dyballa]

Am 30.07.2005 um 12:15 schrieb Baloff:

> what is S-down-mouse-1 any way?
>

You press the shift key and while holding it down you press usually the 
left-most mouse button. Then you can let go both keys.

Or you type C-h t.

--
Greetings

   Pete

Bake Pizza not war!

Re: font size

[Eli Zaretskii]

> From: Baloff <washdc@wash.edu>
> Date: 30 Jul 2005 20:15:38 +1000
> 
> I am trying to increase the font size displayed on the screen.

Then the ps-* stuff is not what you want.

> plus I don't know what S-down-mouse-1 or M-x mouse-set-font! mean.
> what is S-down-mouse-1 any way?

S-down-mouse-1 means hold the Shift key and click the left mouse
button.

Sounds like you need to read the tutorial and the few basic chapters
of the manual.  The node "Mouse Commands" is one that I recommend.

Re: font size

[Tim X]

Baloff <washdc@wash.edu> writes:

> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > > From: Baloff <washdc@wash.edu>
> > > Date: 29 Jul 2005 14:24:37 +1000
> > > 
> > > I am trying to change the font size.
> > > after reading in info info on how to seach the info. I was able to
> > > find in info emacs ps-font-size should do it.
> > > 
> > > but when I type ps<tab> in the mini buffer I get
> > > 
> > > Possible completions are:
> > > ps-despool			   ps-line-lengths
> > > ps-mode				   ps-nb-pages-buffer
> > > ps-nb-pages-region		   ps-print-buffer
> > > ps-print-buffer-with-faces	   ps-print-customize
> > > ps-print-region			   ps-print-region-with-faces
> > > ps-spool-buffer			   ps-spool-buffer-with-faces
> > > ps-spool-region			   ps-spool-region-with-faces
> > > 
> > > nothing about font size. 
> > 
> > Try loading ps-print first, like this:
> > 
> >     M-x load-library RET ps-print RET
> > 
> > and then try typing "ps TAB" again.
> > 
> > (Some variables are only defined when the respective package is loaded
> > into Emacs.)
> > 
> > Btw, ps-font-size is only for the ps-print feature, it will not affect
> > the fonts used for display.  Are you sure this is what you need?
> 
> I am trying to increase the font size displayed on the screen. plus I
> don't know what S-down-mouse-1 or M-x mouse-set-font! mean.
> what is S-down-mouse-1 any way?
> 

Firstly, I'd recommend reading the tutorial C-h t (Control and h
together then t). Also check out the info pages on emacs. 

In emacs, font related stuff is covered by the term 'face'. Try M-x
customize-face <ret> (where M-x means hit Meta plus x and Meta is
*usually* the Alt key)

If your running on Linux under X, you can also use X resource settings
(see info pages). You can also set the font on the command line with
-font. 

Tim

-- 
Tim Cross
The e-mail address on this message is FALSE (obviously!). My real e-mail is
to a company in Australia called rapttech and my login is tcross - if you 
really need to send mail, you should be able to work it out!

Re: Font size

[Kévin Le Gouguec]

Eli Zaretskii <eliz@gnu.org> writes:

>> One hiccup: unless I'm mistaken, this build does not consult
>> ~/.Xresources anymore.
>
> That's by design, AFAIU.  Yuuki even said that not so long ago.

Right.  To recap my other questions:

1. Why do Xresources and GSettings sizes differ from what C-u C-x =
   reports?

2. Why doesn't "10.5" work with GSettings, despite it working with
   Xresources?

3. Is there a bug to report there?

Re: Font size

[Kévin Le Gouguec]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Kévin Le Gouguec <kevin.legouguec@gmail.com>
>> Date: Wed, 04 Aug 2021 14:53:04 +0200
>> Cc: Yuuki Harano <masm+emacs@masm11.me>, Eli Zaretskii <eliz@gnu.org>
>> 
>> $ gsettings set org.gnome.desktop.interface monospace-font-name 'DejaVu Sans Mono 10.5'
>> 
>> Emacs emits a warning:
>> 
>> > set-face-attribute: Font not available: #<font-spec nil nil DejaVu\
>> > Sans\ Mono\ 10\.5 nil nil nil nil nil nil nil nil nil ((:name
>> > . "DejaVu Sans Mono 10.5") (:user-spec . "DejaVu Sans Mono 10.5"))>
>> 
>> Is this expected?
>
> I don't know if it's expected, but the error message says that the
> "10.5" part is not expected there.  What happens if you use "10"
> instead of "10.5"?

Cf. the paragraph just above:

> On master --with-gconf and feature/pgtk, with font-use-system-font set
> to t, here is what C-u C-x = says for various GSettings:
> 
> GSettings³      C-u C-x =
> 9               12
> 10              13
> 10.5            ERROR (see below)
> 11              15
> 
> ³ "XX" in "gsettings org.gnome.desktop.interface monospace-font-name 'DejaVu Sans Mono XX'"

What I don't understand:

1. How come GSettings/Xresources and Emacs use different "units"?
   (Apologies if the answer lies somewhere in the manual, which it most
   certainly does)

2. Why does 10.5 work with Xresources and not GSettings?

Re: Font size

[Yuri Khan]

On Wed, 4 Aug 2021 at 20:59, Kévin Le Gouguec <kevin.legouguec@gmail.com> wrote:
>
> Eli Zaretskii <eliz@gnu.org> writes:
>
> >> One hiccup: unless I'm mistaken, this build does not consult
> >> ~/.Xresources anymore.
> >
> > That's by design, AFAIU.  Yuuki even said that not so long ago.
>
> Right.  To recap my other questions:
>
> 1. Why do Xresources and GSettings sizes differ from what C-u C-x =
>    reports?

Likely because the former are specified in points (1 pt = 1/72 in) and
the latter in pixels (1 px = 1/96 in by default).

Re: Font size

[Eli Zaretskii]

> From: Yuri Khan <yuri.v.khan@gmail.com>
> Date: Wed, 4 Aug 2021 22:46:25 +0700
> Cc: Eli Zaretskii <eliz@gnu.org>, masm+emacs@masm11.me, 
> 	Emacs developers <emacs-devel@gnu.org>
> 
> > 1. Why do Xresources and GSettings sizes differ from what C-u C-x =
> >    reports?
> 
> Likely because the former are specified in points (1 pt = 1/72 in) and
> the latter in pixels (1 px = 1/96 in by default).

is this tru also for GSettings font sizes in the X+GTK build of Emacs?
Because then we'd need to document that in the "Fonts" section of the
Emacs manual, where all the different methods of specifying a font are
described.

Re: Font size

[Yuri Khan]

On Wed, 4 Aug 2021 at 23:11, Eli Zaretskii <eliz@gnu.org> wrote:

> > > 1. Why do Xresources and GSettings sizes differ from what C-u C-x =
> > >    reports?
> >
> > Likely because the former are specified in points (1 pt = 1/72 in) and
> > the latter in pixels (1 px = 1/96 in by default).
>
> is this tru also for GSettings font sizes in the X+GTK build of Emacs?
> Because then we'd need to document that in the "Fonts" section of the
> Emacs manual, where all the different methods of specifying a font are
> described.

The org.gnome.desktop.interface GSettings schema does not say
explicitly which units the size is specified in, and whether
fractional values are allowed.

    <key name="font-name" type="s">
      <default>'Cantarell 11'</default>
      <summary>Default font</summary>
      <description>
        Name of the default font used by gtk+.
      </description>
    </key>
    <key name="document-font-name" type="s">
      <default>'Cantarell 11'</default>
      <summary>Document font</summary>
      <description>
        Name of the default font used for reading documents.
      </description>
    </key>
    <key name="monospace-font-name" type="s">
      <default>'Source Code Pro 10'</default>
      <summary>Monospace font</summary>
      <description>
        Name of a monospaced (fixed-width) font for use in locations like
        terminals.
      </description>
    </key>

Re: Font size

[Eli Zaretskii]

> From: Yuri Khan <yuri.v.khan@gmail.com>
> Date: Thu, 5 Aug 2021 00:09:47 +0700
> Cc: Kévin Le Gouguec <kevin.legouguec@gmail.com>, 
> 	masm+emacs@masm11.me, Emacs developers <emacs-devel@gnu.org>
> 
> On Wed, 4 Aug 2021 at 23:11, Eli Zaretskii <eliz@gnu.org> wrote:
> 
> > > > 1. Why do Xresources and GSettings sizes differ from what C-u C-x =
> > > >    reports?
> > >
> > > Likely because the former are specified in points (1 pt = 1/72 in) and
> > > the latter in pixels (1 px = 1/96 in by default).
> >
> > is this tru also for GSettings font sizes in the X+GTK build of Emacs?
> > Because then we'd need to document that in the "Fonts" section of the
> > Emacs manual, where all the different methods of specifying a font are
> > described.
> 
> The org.gnome.desktop.interface GSettings schema does not say
> explicitly which units the size is specified in, and whether
> fractional values are allowed.

My question was whether the same units are likely to be used in the
X+GTK build as they are in the PGTK build.  IOW, that your guess of
the units being 1/96 inch is true or false for both of them.

Re: Font size

[Yuri Khan]

On Thu, 5 Aug 2021 at 01:24, Eli Zaretskii <eliz@gnu.org> wrote:

> My question was whether the same units are likely to be used in the
> X+GTK build as they are in the PGTK build.  IOW, that your guess of
> the units being 1/96 inch is true or false for both of them.

I’m not related to GNOME or GTK+ development, but I would be much
surprised if font sizes were specified in anything other than points
(which are 1/72 in, not 1/96 in); and especially if GTK behaved
differently in that regard between X and Wayland and/or depended on
other factors other than poorly configured screen DPI.

Re: Font size

[Robert Pluim]

>>>>> On Thu, 5 Aug 2021 01:33:16 +0700, Yuri Khan <yuri.v.khan@gmail.com> said:

    Yuri> On Thu, 5 Aug 2021 at 01:24, Eli Zaretskii <eliz@gnu.org> wrote:
    >> My question was whether the same units are likely to be used in the
    >> X+GTK build as they are in the PGTK build.  IOW, that your guess of
    >> the units being 1/96 inch is true or false for both of them.

    Yuri> I’m not related to GNOME or GTK+ development, but I would be much
    Yuri> surprised if font sizes were specified in anything other than points
    Yuri> (which are 1/72 in, not 1/96 in); and especially if GTK behaved
    Yuri> differently in that regard between X and Wayland and/or depended on
    Yuri> other factors other than poorly configured screen DPI.

Fontconfig talks about sizes in points (but allows them to be
fractional, the underlying data type is a double)

Robert
-- 

Re: Font size

[Eli Zaretskii]

> From: Robert Pluim <rpluim@gmail.com>
> Cc: Eli Zaretskii <eliz@gnu.org>,  masm+emacs@masm11.me,  Emacs developers
>  <emacs-devel@gnu.org>,  Kévin Le Gouguec
>  <kevin.legouguec@gmail.com>
> Date: Thu, 05 Aug 2021 16:51:57 +0200
> 
> >>>>> On Thu, 5 Aug 2021 01:33:16 +0700, Yuri Khan <yuri.v.khan@gmail.com> said:
> 
>     Yuri> On Thu, 5 Aug 2021 at 01:24, Eli Zaretskii <eliz@gnu.org> wrote:
>     >> My question was whether the same units are likely to be used in the
>     >> X+GTK build as they are in the PGTK build.  IOW, that your guess of
>     >> the units being 1/96 inch is true or false for both of them.
> 
>     Yuri> I’m not related to GNOME or GTK+ development, but I would be much
>     Yuri> surprised if font sizes were specified in anything other than points
>     Yuri> (which are 1/72 in, not 1/96 in); and especially if GTK behaved
>     Yuri> differently in that regard between X and Wayland and/or depended on
>     Yuri> other factors other than poorly configured screen DPI.
> 
> Fontconfig talks about sizes in points (but allows them to be
> fractional, the underlying data type is a double)

I wasn't talking about the Fontconfig format of specifying a font, I
was talking about the GTK format.  They are different, see the node
"Fonts" in the Emacs manual.

Font size

[Anand Tamariya]

[-- Attachment #1: Type: text/plain, Size: 565 bytes --]

Why does this API keep increasing the font size? With a selection, try the
test command.

Alternatively, what's the best way to query the font-size at point and
re-apply using face property?


font-info
[ OPENED-NAME FULL-NAME SIZE *HEIGHT* BASELINE-OFFSET RELATIVE-COMPOSE
    DEFAULT-ASCENT MAX-WIDTH ASCENT DESCENT SPACE-WIDTH AVERAGE-WIDTH
    FILENAME CAPABILITY ]

(defun test(start end)
  (interactive "r")
  (let* ((size (* 10 (aref (font-info (font-at start)) 3))))
    (put-text-property start end 'face
      (list :inherit 'unspecified :height size))))

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Re: Font size

[Eli Zaretskii]

> From: Anand Tamariya <atamariya@gmail.com>
> Date: Tue, 20 Aug 2024 10:55:45 +0530
> 
> Why does this API keep increasing the font size? With a selection, try the test command.

Because the factor of 10 is wrong, AFAIU.

> Alternatively, what's the best way to query the font-size at point and re-apply using face property?

I don't understand: if you don't want to change the height, then why
do you have :height in the face spec at all?

In any case, :height could be a relative value of 1.0.

Re: Font size

[Anand Tamariya]

[-- Attachment #1: Type: text/plain, Size: 573 bytes --]

> Why does this API keep increasing the font size? With a selection, try
> the test command.
>
> Because the factor of 10 is wrong, AFAIU.
>
Factor of 1 decreases the font size.

> Alternatively, what's the best way to query the font-size at point and
> re-apply using face property?
>
> I don't understand: if you don't want to change the height, then why
> do you have :height in the face spec at all?
>
> In any case, :height could be a relative value of 1.0.
>
 I'm trying to increase/decrease the font size in the selected region. So I
need a base value to work with.

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Re: Font size

[Eli Zaretskii]

> From: Anand Tamariya <atamariya@gmail.com>
> Date: Tue, 20 Aug 2024 18:26:15 +0530
> Cc: emacs-devel@gnu.org
> 
> 
>  > Why does this API keep increasing the font size? With a selection, try the test command.
> 
>  Because the factor of 10 is wrong, AFAIU.
> 
> Factor of 1 decreases the font size. 

Yes, because 1 is also wrong.

>  > Alternatively, what's the best way to query the font-size at point and re-apply using face property?
> 
>  I don't understand: if you don't want to change the height, then why
>  do you have :height in the face spec at all?
> 
>  In any case, :height could be a relative value of 1.0.
> 
>  I'm trying to increase/decrease the font size in the selected region. So I need a base value to work with.

And relative values like 1.2 or 0.8 don't fit the bill in your case?
Using relative sizes frees you from the need to compute absolute size
values.

Re: Font size

[Anand Tamariya]

[-- Attachment #1: Type: text/plain, Size: 367 bytes --]

> >  I'm trying to increase/decrease the font size in the selected region.
> So I need a base value to work with.
>
> And relative values like 1.2 or 0.8 don't fit the bill in your case?
> Using relative sizes frees you from the need to compute absolute size
> values.
>
I'm exploring a scenario where the text is inside a fixed shape. So
absolute size is important.

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Re: Font size

[Eli Zaretskii]

> From: Anand Tamariya <atamariya@gmail.com>
> Date: Tue, 20 Aug 2024 19:07:33 +0530
> Cc: emacs-devel@gnu.org
> 
>  >  I'm trying to increase/decrease the font size in the selected region. So I need a base value to work
>  with.
> 
>  And relative values like 1.2 or 0.8 don't fit the bill in your case?
>  Using relative sizes frees you from the need to compute absolute size
>  values.
> 
> I'm exploring a scenario where the text is inside a fixed shape. So absolute size is important. 

Not sure I understand why float values don't do what you want, but you
could find the right value of the factor empirically.  In my case, I
found that 6 is the right value.