drawterm/libmemdraw/string.c

69 lines
1.1 KiB
C

#include <u.h>
#include <libc.h>
#include <draw.h>
#include <memdraw.h>
#include <memlayer.h>
Point
memimagestring(Memimage *b, Point p, Memimage *color, Point cp, Memsubfont *f, char *cs)
{
int w, width;
uchar *s;
Rune c;
Fontchar *i;
s = (uchar*)cs;
for(; (c=*s); p.x+=width, cp.x+=width){
width = 0;
if(c < Runeself)
s++;
else{
w = chartorune(&c, (char*)s);
if(w == 0){
s++;
continue;
}
s += w;
}
if(c >= f->n)
continue;
// i = f->info+c;
i = &(f->info[c]);
width = i->width;
memdraw(b, Rect(p.x+i->left, p.y+i->top, p.x+i->left+(i[1].x-i[0].x), p.y+i->bottom),
color, cp, f->bits, Pt(i->x, i->top), SoverD);
}
return p;
}
Point
memsubfontwidth(Memsubfont *f, char *cs)
{
Rune c;
Point p;
uchar *s;
Fontchar *i;
int w, width;
p = Pt(0, f->height);
s = (uchar*)cs;
for(; (c=*s); p.x+=width){
width = 0;
if(c < Runeself)
s++;
else{
w = chartorune(&c, (char*)s);
if(w == 0){
s++;
continue;
}
s += w;
}
if(c >= f->n)
continue;
i = f->info+c;
width = i->width;
}
return p;
}