shithub: olednews

ref: f703cd3cbfe6ca6cb78b9cabf2bf09ec4457c2f6
dir: /textimg.c/

#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>

void
usage(void)
{
	sysfatal("usage: %s [ -f subfont ] text", argv0);
}

void
main(int argc, char **argv)
{
	char *s;
	Memsubfont *f;
	Point p;
	Memimage *img;
	
	s = "/lib/font/bit/lucida/latin1B.32.1";
	f = nil;
	ARGBEGIN{
	case 'f':
		s = EARGF(usage());
		break;
	}ARGEND;
	
	if (argc < 1)
		sysfatal("no text argument");
	
	if (memimageinit())
		sysfatal("memimageinit failed: %r");
	
	if (s)
		f = openmemsubfont(s);
	if (!f){
		fprint(2, "cannot load subfont. Falling back to default.\n");
		f = getmemdefont();
	}
	
	p = memsubfontwidth(f, argv[0]);
	
	if (p.x == 0)
		sysfatal("no length");
	
	img = allocmemimage(Rect(0, 0, p.x, f->height), RGB24);
	if (!img)
		sysfatal("cannot allocate memimage: %r");
	memfillcolor(img, DWhite);
	
	memimagestring(img, Pt(0, 0), memblack, ZP, f, argv[0]);
	writememimage(1, img);
}