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[keller] if we expect success, but fail, error out #2278

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nick black 2021-10-19 18:05:46 -04:00
parent 3dafea8e91
commit a4896720e7
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 17 additions and 9 deletions
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26
src/demo/keller.c
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@ -1,17 +1,22 @@
#include "demo.h"
static bool truefxn(const struct notcurses* nc){ (void)nc; return true; }
// show it with each blitter, with a legend
static int
visualize(struct notcurses* nc, struct ncvisual* ncv){
struct timespec kdelay;
timespec_div(&demodelay, 2, &kdelay);
ncblitter_e bs[] = {
NCBLIT_BRAILLE,
NCBLIT_1x1,
NCBLIT_2x1,
NCBLIT_2x2,
NCBLIT_3x2,
NCBLIT_PIXEL,
const struct {
ncblitter_e b;
bool (*f)(const struct notcurses*);
} bs[] = {
{ NCBLIT_BRAILLE, notcurses_canbraille, },
{ NCBLIT_1x1, truefxn, }, // everyone can do spaces
{ NCBLIT_2x1, notcurses_canhalfblock, },
{ NCBLIT_2x2, notcurses_canquadrant, },
{ NCBLIT_3x2, notcurses_cansextant, },
{ NCBLIT_PIXEL, notcurses_canpixel, },
};
struct ncplane* stdn = notcurses_stdplane(nc);
ncplane_set_fg_rgb(stdn, 0xffffff);
@ -25,7 +30,7 @@ visualize(struct notcurses* nc, struct ncvisual* ncv){
struct ncvisual_options vopts = {
.n = notcurses_stdplane(nc),
.scaling = NCSCALE_SCALE,
.blitter = bs[i],
.blitter = bs[i].b,
.flags = NCVISUAL_OPTION_NODEGRADE
| NCVISUAL_OPTION_HORALIGNED
| NCVISUAL_OPTION_VERALIGNED
@ -47,11 +52,14 @@ visualize(struct notcurses* nc, struct ncvisual* ncv){
}
//fprintf(stderr, "X: %d truex: %d scalex: %d\n", vopts.x, truex, scalex);
if(!n){
if(bs[i].f(nc)){
return -1;
}
ncplane_on_styles(stdn, NCSTYLE_ITALIC);
ncplane_printf_aligned(stdn, ncplane_dim_y(stdn) / 2 - 1, NCALIGN_CENTER, "not available");
ncplane_off_styles(stdn, NCSTYLE_ITALIC);
}
const char* name = notcurses_str_blitter(bs[i]);
const char* name = notcurses_str_blitter(bs[i].b);
ncplane_printf_aligned(stdn, ncplane_dim_y(stdn) / 2 - 3, NCALIGN_CENTER, "%sblitter", name);
int ret = demo_render(nc);
if(ret){