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#include <u.h>
#include <libc.h>
#include <draw.h>
enum
{
Max = 100
};
Point
string(Image *dst, Point pt, Image *src, Point sp, Font *f, char *s)
{
return _string(dst, pt, src, sp, f, s, nil, 1<<24, dst->clipr, nil, ZP, SoverD);
}
Point
stringop(Image *dst, Point pt, Image *src, Point sp, Font *f, char *s, Drawop op)
{
return _string(dst, pt, src, sp, f, s, nil, 1<<24, dst->clipr, nil, ZP, op);
}
Point
stringn(Image *dst, Point pt, Image *src, Point sp, Font *f, char *s, int len)
{
return _string(dst, pt, src, sp, f, s, nil, len, dst->clipr, nil, ZP, SoverD);
}
Point
stringnop(Image *dst, Point pt, Image *src, Point sp, Font *f, char *s, int len, Drawop op)
{
return _string(dst, pt, src, sp, f, s, nil, len, dst->clipr, nil, ZP, op);
}
Point
runestring(Image *dst, Point pt, Image *src, Point sp, Font *f, Rune *r)
{
return _string(dst, pt, src, sp, f, nil, r, 1<<24, dst->clipr, nil, ZP, SoverD);
}
Point
runestringop(Image *dst, Point pt, Image *src, Point sp, Font *f, Rune *r, Drawop op)
{
return _string(dst, pt, src, sp, f, nil, r, 1<<24, dst->clipr, nil, ZP, op);
}
Point
runestringn(Image *dst, Point pt, Image *src, Point sp, Font *f, Rune *r, int len)
{
return _string(dst, pt, src, sp, f, nil, r, len, dst->clipr, nil, ZP, SoverD);
}
Point
runestringnop(Image *dst, Point pt, Image *src, Point sp, Font *f, Rune *r, int len, Drawop op)
{
return _string(dst, pt, src, sp, f, nil, r, len, dst->clipr, nil, ZP, op);
}
Point
_string(Image *dst, Point pt, Image *src, Point sp, Font *f, char *s, Rune *r, int len, Rectangle clipr, Image *bg, Point bgp, Drawop op)
{
int m, n, wid, max;
ushort cbuf[Max], *c, *ec;
uchar *b;
char *subfontname;
char **sptr;
Rune **rptr;
Font *def;
Subfont *sf;
if(len < 0)
sysfatal("libdraw: _string len=%d", len);
if(s == nil){
s = "";
sptr = nil;
}else
sptr = &s;
if(r == nil){
r = (Rune*) L"";
rptr = nil;
}else
rptr = &r;
sf = nil;
while((*s || *r) && len){
max = Max;
if(len < max)
max = len;
n = cachechars(f, sptr, rptr, cbuf, max, &wid, &subfontname);
if(n > 0){
_setdrawop(dst->display, op);
m = 47+2*n;
if(bg)
m += 4+2*4;
b = bufimage(dst->display, m);
if(b == 0){
fprint(2, "string: %r\n");
break;
}
if(bg)
b[0] = 'x';
else
b[0] = 's';
BPLONG(b+1, dst->id);
BPLONG(b+5, src->id);
BPLONG(b+9, f->cacheimage->id);
BPLONG(b+13, pt.x);
BPLONG(b+17, pt.y+f->ascent);
BPLONG(b+21, clipr.min.x);
BPLONG(b+25, clipr.min.y);
BPLONG(b+29, clipr.max.x);
BPLONG(b+33, clipr.max.y);
BPLONG(b+37, sp.x);
BPLONG(b+41, sp.y);
BPSHORT(b+45, n);
b += 47;
if(bg){
BPLONG(b, bg->id);
BPLONG(b+4, bgp.x);
BPLONG(b+8, bgp.y);
b += 12;
}
ec = &cbuf[n];
for(c=cbuf; c<ec; c++, b+=2)
BPSHORT(b, *c);
pt.x += wid;
bgp.x += wid;
agefont(f);
len -= n;
}
if(subfontname){
freesubfont(sf);
if((sf=_getsubfont(f->display, subfontname)) == 0){
def = f->display ? f->display->defaultfont : nil;
if(def && f!=def)
f = def;
else
break;
}
/*
* must not free sf until cachechars has found it in the cache
* and picked up its own reference.
*/
}
}
return pt;
}
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