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[zoo] clean up background

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nick black 2021-11-09 03:41:10 -05:00
parent 8dc396c916
commit 4153e24f8b
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GPG Key ID: 5F43400C21CBFACC
1 changed files with 27 additions and 22 deletions
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17
src/demo/zoo.c
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@ -2,8 +2,11 @@
// open up changes.jpg, stretch it to fill, drop it to greyscale
static int
draw_background(struct notcurses* nc){
if(notcurses_canopen_images(nc)){
draw_background(struct notcurses* nc, struct ncplane** bgp){
*bgp = NULL;
if(!notcurses_canopen_images(nc)){
return 0;
}
struct ncplane* n = notcurses_stdplane(nc);
char* path = find_data("changes.jpg");
struct ncvisual* ncv = ncvisual_from_file(path);
@ -16,13 +19,12 @@ draw_background(struct notcurses* nc){
.n = n,
.flags = NCVISUAL_OPTION_CHILDPLANE,
};
if(ncvisual_blit(nc, ncv, &vopts) == NULL){
if((*bgp = ncvisual_blit(nc, ncv, &vopts)) == NULL){
ncvisual_destroy(ncv);
return -1;
}
ncplane_greyscale(n);
ncvisual_destroy(ncv);
}
return 0;
}
@ -438,8 +440,11 @@ done:
// screen. as it does so, two widgets (selector and multiselector) come in
// from the left and right, respectively. they then fade out.
int zoo_demo(struct notcurses* nc){
if(draw_background(nc)){
struct ncplane* bgp;
if(draw_background(nc, &bgp)){
return -1;
}
return reader_demo(nc);
int ret = reader_demo(nc);
ncplane_destroy(bgp);
return ret;
}