Tux Paint

Laurdag 20 desember 2008 skreiv Bill Kendrick:
>We should review these to see if any could be useful to Tux Paint.
>(Either fonts for the Text Tool, or perhaps even alternative fonts for the
> UI)

No, it doesn't look very useful. But I believe Andika will be an excellent
font for the UI:

http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=andika&_sc=1

It's currently used in Tux Typing and Tux Math.

But I couldn’t get it to work with Tux Paint by saving it as default_font.ttf 
to test it. How do I actually change the UI font in Tux Paint?

-- 
Karl Ove Hufthammer

Torsdag 01 januar 2009 skreiv Karl Ove Hufthammer:
>>We should review these to see if any could be useful to Tux Paint.
>>(Either fonts for the Text Tool, or perhaps even alternative fonts for the
>> UI)
>
>No, it doesn't look very useful.

I thought you were only talking about about the Keyfont font, which I don't 
think is very useful. The PCfont, however, may be a candidate for the UI font.

One advantage of it over the current font is that it's more narrow. Even 
English has problems with long labels in the UI, and translations may easily 
be 50% to 100% longer.

Another font that we might want to take a look at is the Droid Sans font
http://en.wikipedia.org/wiki/Droid_(font)

It's too is quite narrow.

However, I don't know how to test these fonts in Tux Paint.

-- 
Karl Ove Hufthammer

On Thu, Jan 01, 2009 at 01:05:18AM +0100, Karl Ove Hufthammer wrote:
> But I couldn???t get it to work with Tux Paint by saving it as default_font.ttf 
> to test it. How do I actually change the UI font in Tux Paint?

That should work.  It sounds like you might be having a similar
/usr vs /usr/local issue as you were over on tuxpaint-i18n?

(Perhaps you're building without setting PREFIX... or need to do a
"make clean" and start fresh with the PREFIX set.  Otherwise it will default
to look in /usr/local/ for things.)

-bill!

Fredag 02 januar 2009 skreiv Bill Kendrick:
>> But I couldn???t get it to work with Tux Paint by saving it as
>> default_font.ttf to test it. How do I actually change the UI font in Tux
>> Paint?
>
>That should work.  It sounds like you might be having a similar
>/usr vs /usr/local issue as you were over on tuxpaint-i18n?

No, the translations now work, but changing default_font.ttf 
has no effect. I have run 'make clean', and am installing into /usr.

-- 
Karl Ove Hufthammer

Fredag 02 januar 2009 skreiv Bill Kendrick:
>> But I couldn???t get it to work with Tux Paint by saving it as
>> default_font.ttf to test it. How do I actually change the UI font in Tux
>> Paint?
>
>That should work.  It sounds like you might be having a similar
>/usr vs /usr/local issue as you were over on tuxpaint-i18n?

Reading the source code, it looks like it was actually never supposed to work. 
The default font is defined in fonts.h as ‘Bitstream Vera’, which is used no 
matter what font is in default_font.ttf (and it is *not* Bitstream Vera, but 
DejaVu Sans!).

-- 
Karl Ove Hufthammer

Laurdag 03 januar 2009 skreiv Karl Ove Hufthammer:
>>That should work.  It sounds like you might be having a similar
>>/usr vs /usr/local issue as you were over on tuxpaint-i18n?
>
>Reading the source code, it looks like it was actually never supposed to
> work. The default font is defined in fonts.h as ‘Bitstream Vera’, which is
> used no matter what font is in default_font.ttf (and it is *not* Bitstream
> Vera, but DejaVu Sans!).

However, changing the name here *only* works if the font is actually installed 
on the system. So in any case, the file default_font.ttf is never used.

-- 
Karl Ove Hufthammer

On Sat, Jan 03, 2009 at 12:35:20PM +0100, Karl Ove Hufthammer wrote:
> However, changing the name here *only* works if the font is actually installed 
> on the system. So in any case, the file default_font.ttf is never used.


Oh whoops...  One thing to consider - Tux Paint now uses SDL_Pango for UI
text, by default, so default_font.ttf would only be used when SDL_ttf is
being used.

Slipped my mind, sorry.

Now, how to ask Pango to use a specific font... that's
always been a mystery to me.  (At least via the SDL_Pango API)

-- 
-bill!
"Tux Paint" - free children's drawing software for Windows / Mac OS X / Linux!
Download it today!  http://www.tuxpaint.org/

Sundag 4. januar 2009 skreiv Bill Kendrick:
>Now, how to ask Pango to use a specific font... that's
>always been a mystery to me.  (At least via the SDL_Pango API)

TuxMath/TuxType2 seems to manage to do it (and use the Andika font).

-- 
Karl Ove Hufthammer
http://blogg.huftis.org/
Jabber: karl@...

On Sun, Jan 04, 2009 at 07:45:46PM +0100, Karl Ove Hufthammer wrote:
> Sundag 4. januar 2009 skreiv Bill Kendrick:
> >Now, how to ask Pango to use a specific font... that's
> >always been a mystery to me.  (At least via the SDL_Pango API)
> 
> TuxMath/TuxType2 seems to manage to do it (and use the Andika font).

Ok.  To David & Tim -- it sounds like you're able to specify a TTF for
SDL_Pango to us when rendering text.  Is this true?  What's the trick? :)

Thx,

-- 
-bill!
"Tux Paint" - free children's drawing software for Windows / Mac OS X / Linux!
Download it today!  http://www.tuxpaint.org/

Hi Bill,

On Sun, Jan 4, 2009 at 12:55 PM, Bill Kendrick <nbs@...> wrote:

>
> On Sun, Jan 04, 2009 at 07:45:46PM +0100, Karl Ove Hufthammer wrote:
> > Sundag 4. januar 2009 skreiv Bill Kendrick:
> > >Now, how to ask Pango to use a specific font... that's
> > >always been a mystery to me.  (At least via the SDL_Pango API)
> >
> > TuxMath/TuxType2 seems to manage to do it (and use the Andika font).
>
> Ok.  To David & Tim -- it sounds like you're able to specify a TTF for
> SDL_Pango to us when rendering text.  Is this true?  What's the trick? :)
>
>
It's a mystery to me as well -  it is a case of blind squirrels finding
acorns.  I don't think any of our code does this intentionally.  We have
tuxmath and tuxtype set up so the only files that know about SDL_Pango are
"SDL_extras.c/h".  Anything that does this would have to be in there.

On a related note, I haven't even found a good way to specify font sizes
with SDL_Pango.  Tuxtype has a hackish workaround to do this by resetting
dpi so the "normal" font size comes out at the desired size.  The SDL_Pango
docs seem to say that we are supposed to set sizes by embedding html-style
tags into the strings to be rendered, which seems cumbersome.

David

On Sun, Jan 04, 2009 at 03:54:02PM -0600, David Bruce wrote:
>    On a related note, I haven't even found a good way to specify font sizes
>    with SDL_Pango.  Tuxtype has a hackish workaround to do this by resetting
>    dpi so the "normal" font size comes out at the desired size.  The
>    SDL_Pango docs seem to say that we are supposed to set sizes by embedding
>    html-style tags into the strings to be rendered, which seems cumbersome.

I had to dig around Tux Paint's fonts.c.
It looks like you provide the size in a string description, and then pass
it along to SDLPango_CreateContext_GivenFontDesc().

So you can specify it based on fonts available to the font system, but
I'm not sure if you can specify it via a file.

So Tux Paint's default UI font is, for example, described as
"BitStream Vera 18" or somesuch.


I'm suddenly remembering what a huge pain this Pango stuff was.
I did a lot of it in my hours-and-hours of spare time during train commutes.
And I did it in such a way that SDL_ttf could still be used, if Pango and/or
SDL_Pango were unavailable on the target system.  Sheesh.  Glutton for
punishment. :)

-- 
-bill!
"Tux Paint" - free children's drawing software for Windows / Mac OS X / Linux!
Download it today!  http://www.tuxpaint.org/