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whiteout: update for scrolling semantics #323

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nick black 2020-04-05 23:39:38 -04:00 committed by Nick Black
parent dc14483878
commit 37b4d96794
1 changed files with 10 additions and 5 deletions
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15
src/demo/whiteout.c
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@ -454,6 +454,7 @@ int witherworm_demo(struct notcurses* nc){
size_t i;
const size_t screens = sizeof(steps) / sizeof(*steps);
struct ncplane* n = notcurses_stdplane(nc);
ncplane_set_scrolling(n, true);
ncplane_erase(n);
for(i = 0 ; i < screens ; ++i){
wchar_t key = NCKEY_INVALID;
@ -481,12 +482,15 @@ int witherworm_demo(struct notcurses* nc){
s = strs + random() % ((sizeof(strs) / sizeof(*strs)) - 1);
size_t idx = 0;
ncplane_cursor_yx(n, &y, &x);
// fprintf(stderr, "%02d %s\n", y, *s);
while((*s)[idx]){ // each multibyte char of string
if(ncplane_set_fg_rgb(n, channel_r(rgb), channel_g(rgb), channel_b(rgb))){
return -1;
}
if(y >= maxy || x >= maxx){
if(x >= maxx){
x = 0;
++y;
}
if(y >= maxy){
break;
}
wchar_t wcs;
@ -503,7 +507,7 @@ int witherworm_demo(struct notcurses* nc){
int ulen = 0;
int r;
if(wcwidth(wcs) <= maxx - x){
if((r = ncplane_putegc(n, &(*s)[idx], &ulen)) < 0){
if((r = ncplane_putegc(n, &(*s)[idx], &ulen)) <= 0){
if(ulen < 0){
return -1;
}
@ -520,7 +524,7 @@ int witherworm_demo(struct notcurses* nc){
++egcs_out;
}
rgb += step;
}while(y < maxy && x < maxx);
}while(y < maxy);
struct ncplane* math = mathplane(nc);
if(math == NULL){
return -1;
@ -565,7 +569,7 @@ int witherworm_demo(struct notcurses* nc){
}
}while(key < 0);
pthread_cancel(tid);
void* result;
void* result = NULL;
pthread_join(tid, &result);
ncplane_destroy(mess);
ncplane_destroy(math);
@ -580,5 +584,6 @@ int witherworm_demo(struct notcurses* nc){
return 1;
}
}
ncplane_set_scrolling(n, false);
return 0;
}