Include b14 efont font, with more characters.

[moh-abb]

Hello, I would like to include another (b14) font into the u8g2 list. The website to get the efont files is here. I would like to include the following map (the zip file also includes the b14 font and its bold version): b14.zip The only difference from the usual kanji map is that it includes more obscure characters as well as Halfwidth and Fullwidth Forms. Please can you also include Unicode range '0-127' (Latin)? I know how to use bdfconv, but I would like to be able to easily implement the code without pasting it in all of my sketches (the resulting C code is rather large), also because I think if I include it in the library it will be changed the next time I update the library. Perhaps you could name it b14_ext?

Many thanks.

[olikraus]

b14 and b14_b are already in the repo: https://github.com/olikraus/u8g2/tree/master/tools/font/bdf

I will use the existing bdf.

Is there some better name for kanjimap2? How shell I name the font? u8g2_font_b_12_t_ext? Or would "u8g2_font_b_12_t_full" fit better?

[moh-abb]

Another name could be KanjiHyogai (hyogai means characters outside the list). It's 14 pixels so something like u8g2_font_b14_t_full would be great.

[olikraus]

ok

[olikraus]

I leave it open, until I have fully implemented this...

[olikraus]

I will call the font japanese3, to be more consistent with the existing fonts. Hope this is ok...

[olikraus]

... also applied the map file to the b16 fonts

[olikraus]

hmmm... I get a lot of errors with the b14 b14_b font:

../bdfconv/bdfconv  -f 1 -b 0 -M 'japanese1.map' ../bdf/b14.bdf -n u8g2_font_b14_t_japanese1 -o font.c && cat font.c >>../../../csrc/u8g2_fonts.c
Glyph size problem: encoding=9332/0x2474, width=7, height=14, requested position x=7, y=4 (use BBX 8 ...?)
Glyph size problem: encoding=9333/0x2475, width=7, height=14, requested position x=7, y=4 (use BBX 8 ...?)
Glyph size problem: encoding=9334/0x2476, width=7, height=14, requested position x=7, y=4 (use BBX 8 ...?)
Glyph size problem: encoding=9335/0x2477, width=7, height=14, requested position x=7, y=4 (use BBX 8 ...?)
Glyph size problem: encoding=9336/0x2478, width=7, height=14, requested position x=7, y=4 (use BBX 8 ...?)
...

[olikraus]

The problem is, that the bitmap is larger than the specified bounding box. For example the 2474 glyph looks like this:

STARTCHAR U+2474
ENCODING 9332
SWIDTH 500 0
DWIDTH 7 0
BBX 7 14 0 -2
BITMAP 
00
02
4A
4A
99
...

The first argument of the BBX command is the glyph width, however the bitmap line 99 (10011001) has a width of 8 bits. bdfconv would truncate the glyph and change the line to 1001100 (removal of the last 1)

[olikraus]

I also crosschecked the files, from your zip file: Same error is included there. My suggestion is this: I will ignore b14 and apply your map file to b12 and b16 instead.

[moh-abb]

That's fine.

[olikraus]

Added the following fonts: u8g2_font_b12_b_t_japanese3 u8g2_font_b16_b_t_japanese3 u8g2_font_b12_t_japanese3
u8g2_font_b16_t_japanese3 u8g2_font_unifont_t_japanese3

[moh-abb]

Fantastic, thanks!