nanogui: Thread: Cyrillic font buit-in

Hi,
I need to embedded cyrillic font support on microwindows. Actually, we 
use built-in font generated by convfnt32 and ttf fonts.
I have found the dejavu project on sourceforge that have ttf font with 
cyrillic simbols.
How can I extract this ones?

Thank you, Cristian C.

: I need to embedded cyrillic font support on microwindows. Actually, we
: use built-in font generated by convfnt32 and ttf fonts.
: I have found the dejavu project on sourceforge that have ttf font with
: cyrillic simbols.
: How can I extract this ones?

Nano-X includes a font converter, convbdf, which will create
a .c file from a .bdf file.  This file is then easily included as a built-in
font, of the fixed size specified by the .bdf file.  I'm pretty sure
there is a .ttf -> .bdf conversion program somewhere that will
create a .bdf of a specified fixed raster size from the .ttf file.
This .bdf could then be used to create a .c file.

Regards,

Greg 

Hi all

Greg Haerr wrote:
 > I'm pretty sure
 > there is a .ttf -> .bdf conversion program somewhere that will
 > create a .bdf of a specified fixed raster size from the .ttf file.

I use fontforge to edit fonts.
It is a fairly powerful free font editor and can easily generate
multiple bdfs in your choice of raster size.
See:
http://fontforge.sourceforge.net/

I run Fontforge on Linux, - that's the easiest -
but they have a Cygwin version for Windows
(compiling and running Fontforge under Cygwin is
too complicated for my liking).

Greg Ford

Hi Greg,
thank you very much for your suggestion.
For ttf to bdf conversion I have used otf2bdf (an evolution of ttf2bdf).
Then, have created the .c with convbdf that have converted all symbols 
(.c is more than 8Mb).
Now I have another problem: I'm not read the correct symbol on the screen.
My application read a UTF-8 file and show it on a text area.
When I use the .ttf file, all work correctly (but is very slow).
With the same font converted as explained above, I see latin symbols 
like ", ?, !, space...

I have read devfont.c source and I have seen PMWFONTPROCS struct have 
"encoding" member: if I set it to MWTF_UTF8 in GdCreateFont function 
when the built-in font is loaded, can be the right way?

Still thank.
Regards, Cristian C.


Greg Haerr ha scritto:
> : I need to embedded cyrillic font support on microwindows. Actually, we
> : use built-in font generated by convfnt32 and ttf fonts.
> : I have found the dejavu project on sourceforge that have ttf font with
> : cyrillic simbols.
> : How can I extract this ones?
> 
> Nano-X includes a font converter, convbdf, which will create
> a .c file from a .bdf file.  This file is then easily included as a built-in
> font, of the fixed size specified by the .bdf file.  I'm pretty sure
> there is a .ttf -> .bdf conversion program somewhere that will
> create a .bdf of a specified fixed raster size from the .ttf file.
> This .bdf could then be used to create a .c file.
> 
> Regards,
> 
> Greg 
> 
> 
> 

: I have read devfont.c source and I have seen PMWFONTPROCS struct have 
: "encoding" member: if I set it to MWTF_UTF8 in GdCreateFont function 
: when the built-in font is loaded, can be the right way?

The encoding member in the built-in MWFONTPROCS struct
must be something that lets nano-X know that the font is 
larger than 256 characters.  I usually use MWTF_UC16 in
the struct, and then specify the text encoding passed to GrText
as whatever your application is using.  Nano-X will convert
between the formats.  The UC16 allows 16-bit access to
the font glyphs.

I don't understand your statement about GdCreateFont.

Regards,

Greg

My problem is that I need to use cyrillic built-in font with a 
microwindows application that use the win32 API.
After I have converted the font from .ttf to .c (otf2bdf, convbdf) I 
have a very long array with a lot of symbols (2^16?).
So, when I start my applications, I'm not read the right symbols (my 
application read a UTF-8 coded file and show them in a text field).
Why? How can I do for get the right symbols?
I'm not understand where is the mistake, the ttf font work well.

I thought to resolve the problem (dirty way, I know :/ ) by forcing 
UTF-8 encoding in GdCreateFont function but this solution doesn't work.

Thank you.
Regards,

Cristian


Greg Haerr ha scritto:
> : I have read devfont.c source and I have seen PMWFONTPROCS struct have 
> : "encoding" member: if I set it to MWTF_UTF8 in GdCreateFont function 
> : when the built-in font is loaded, can be the right way?
> 
> The encoding member in the built-in MWFONTPROCS struct
> must be something that lets nano-X know that the font is 
> larger than 256 characters.  I usually use MWTF_UC16 in
> the struct, and then specify the text encoding passed to GrText
> as whatever your application is using.  Nano-X will convert
> between the formats.  The UC16 allows 16-bit access to
> the font glyphs.
> 
> I don't understand your statement about GdCreateFont.
> 
> Regards,
> 
> Greg
> 
> 

: So, when I start my applications, I'm not read the right symbols (my 
: application read a UTF-8 coded file and show them in a text field).
: Why? How can I do for get the right symbols?
: I'm not understand where is the mistake, the ttf font work well.

Win32 doesn't provide a way to specify text encoding, so
you'll have to force it in the GdText call in the MwExTextOut
function, which I think is in src/mwin/winuser.c or winfont.c

Regards,

Greg

Greg Haerr:
> 
> Win32 doesn't provide a way to specify text encoding, so
> you'll have to force it in the GdText call in the MwExTextOut
> function, which I think is in src/mwin/winuser.c or winfont.c

The editbox component source is microwindows/src/mwin/winlib/newedit.c 
that define neTextOut as TextOutW, function defined at 757 of 
microwindows/src/mwin/wingdi.c. This one, call MwExtTextOut with UC16 
encoding.

I have modified this:

return MwExtTextOut(hdc, x, y, 0, NULL, lpszString, cbString, NULL, 
MWTF_UC16 );

with

return MwExtTextOut(hdc, x, y, 0, NULL, lpszString, cbString, NULL, 
MWTF_UTF8 );

Debugging, the function is called but the symbols are still wrong (the 
same as MWTF_UC16).

Regards, Cristian

: return MwExtTextOut(hdc, x, y, 0, NULL, lpszString, cbString, NULL, 
: MWTF_UTF8 );
: 
: Debugging, the function is called but the symbols are still wrong (the 
: same as MWTF_UC16).

You should write a test program that displays text in a window
directly using this same function.  If it works, then there are
issues with how the edit box control stores text.  Otherwise,
there are still other issues.

Regards,

Greg

Greg Haerr:
> : return MwExtTextOut(hdc, x, y, 0, NULL, lpszString, cbString, NULL, 
> : MWTF_UTF8 );
> : 
> : Debugging, the function is called but the symbols are still wrong (the 
> : same as MWTF_UC16).
> 
> You should write a test program that displays text in a window
> directly using this same function.  If it works, then there are
> issues with how the edit box control stores text.  Otherwise,
> there are still other issues.

Starting from pcfdemo.c, I have write builtinfont.c that use GrText
function that also call GdText function: I'm not be able to see the
right symbols but I have some new questions:
1) UTF8 use 1 2 and sometimes 4 bytes for one symbol: I use a char array
   for store the text file. Is this correct? (see attach for source code)
2) with fontforge I have open the .bdf and I have see that first
cyrillic symbol is the 1024 (unicode). I have try to show this only one
but I get an error (see attach char_utf8.txt). Why?

Tnx.
Regards, Cristian

/*
 * pcfdemo - demonstrate PCF font loading for Nano-X
 */
#include <stdio.h>
#include <stdlib.h>
#define MWINCLUDECOLORS
#include "nano-X.h"

GR_FONT_ID font = 0;
GR_WINDOW_ID main_wid;
GR_FONT_INFO finfo;

static void
draw_string(void)
{
	int count = 0;
	int x = 10;
	int y = 10;
	unsigned char ch;
	int tmp = 1024;
	GR_GC_ID gc = GrNewGC();

	GrSetGCFont(gc, font);

	GrSetGCForeground(gc, GR_RGB(255, 255, 255));
	GrSetGCBackground(gc, GR_RGB(0, 0, 0));

	printf("First char = %d, last char = %d\n", finfo.firstchar,
	       finfo.lastchar);
	printf("Max width = %d, max height = %d\n", finfo.maxwidth,
	       finfo.height);

	GrText(main_wid, gc, x, y, &tmp, 1, GR_TFTOP | GR_TFUC16); //this cause an assert error

/*
	for (ch = 0; ch < 255; ch++) {
		if (ch < finfo.firstchar || ch > finfo.lastchar)
			GrFillRect(main_wid, gc, x, y, finfo.maxwidth, finfo.height);
		else
			GrText(main_wid, gc, x, y, &ch, 1, GR_TFTOP | GR_TFASCII);

		if (++count >= 16) {
			x = 0;
			y += finfo.height;
			count = 0;
		} else
			x += finfo.maxwidth + 2;
	}
*/
	GrDestroyGC(gc);
}

static void drawFile(const char * fname){
	char buf[20]; //or int... unsigned?
	int count = 0;
	int x = 0;
	int y = 10;
	unsigned char ch;
	FILE * pfile;

	GR_GC_ID gc = GrNewGC();

	GrSetGCFont(gc, font);

	GrSetGCForeground(gc, GR_RGB(255, 255, 255));
	GrSetGCBackground(gc, GR_RGB(0, 0, 0));

	pfile = fopen(fname, "r");
	if( pfile > 0 ){
		fread(buf, 1, 20, pfile);
		GrText(main_wid, gc, x, y, buf, 20, GR_TFTOP | GR_TFUTF8);
	}
	GrDestroyGC(gc);
}

int
main(int argc, char **argv)
{
	int width, height;

	if (GrOpen() == -1)
		return (-1);

	font = GrCreateFont("DejaVuLGCSans", 19, 0); //This is a builtin fonts generated by convbdf
	if (!font)
		printf("Unable to load font\n");

	GrGetFontInfo(font, &finfo);

	width = ((finfo.maxwidth + 2) * 16);
	height =
		(((finfo.lastchar - finfo.firstchar) / 16) +
		 5) * finfo.height;

	main_wid = GrNewWindowEx(GR_WM_PROPS_APPWINDOW, "builtinfont",
			GR_ROOT_WINDOW_ID, 0, 0, width, height, BLACK);
	GrSelectEvents(main_wid, GR_EVENT_MASK_EXPOSURE|GR_EVENT_MASK_CLOSE_REQ);
	GrMapWindow(main_wid);

	while (1) {
		GR_EVENT event;
		GrGetNextEvent(&event);

		if (event.type == GR_EVENT_TYPE_EXPOSURE)
			draw_string();
//			drawFile("utf8.txt");
//			drawFile("unicode.txt");

	        if(event.type == GR_EVENT_TYPE_CLOSE_REQ) {
			GrClose();
			exit(0);
	      }
	}
}

tfb800@utfb800:~/src/x86/microwin_cvs/src/bin$ ./builtinfont 
XDefaultVisual:
  Visual  class: TrueColor (4)
             id: 35
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Screen RootDepth: 24
Screen RootVisual
  Visual  class: TrueColor (4)
             id: 35
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Depth: 24
Visual: 0
  Visual  class: TrueColor (4)
             id: 35
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 1
  Visual  class: TrueColor (4)
             id: 36
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 2
  Visual  class: TrueColor (4)
             id: 37
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 3
  Visual  class: TrueColor (4)
             id: 38
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 4
  Visual  class: TrueColor (4)
             id: 39
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 5
  Visual  class: TrueColor (4)
             id: 40
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 6
  Visual  class: TrueColor (4)
             id: 41
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 7
  Visual  class: TrueColor (4)
             id: 42
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 8
  Visual  class: DirectColor (5)
             id: 43
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 9
  Visual  class: DirectColor (5)
             id: 44
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 10
  Visual  class: DirectColor (5)
             id: 45
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 11
  Visual  class: DirectColor (5)
             id: 46
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 12
  Visual  class: DirectColor (5)
             id: 47
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 13
  Visual  class: DirectColor (5)
             id: 48
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 14
  Visual  class: DirectColor (5)
             id: 49
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Visual: 15
  Visual  class: DirectColor (5)
             id: 50
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Depth: 1
Depth: 4
Depth: 8
Depth: 15
Depth: 16
Depth: 32
Visual: 0
  Visual  class: TrueColor (4)
             id: 96
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
Selected Visual:
  Visual  class: TrueColor (4)
             id: 35
   bits_per_rgb: 8
    map_entries: 256
       red_mask: 0x00ff0000
     green_mask: 0x0000ff00
      blue_mask: 0x000000ff
createfont: (height == 0) found builtin font System (0)
createfont: (height == 0) found builtin font System (0)
fnt_createfont: DejaVuLGCSans,19 not found
pcf_createfont: DejaVuLGCSans,19 not found
createfont: (height != 0) using builtin font DejaVuLGCSans (4)
First char = 32, last char = 65533
Max width = 74, max height = 19
builtinfont: /home/tfb800/src/x86/microwin_cvs/src/drivers/fblin32.c:68: linear32_drawhorzline: Assertion `x2 >= x1' failed.
Aborted (core dumped)