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selector: transparent where we aren't

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This commit is contained in:
nick black 2020-02-23 09:38:58 -05:00
parent 5980c9ae66
commit bdd0917ea4
No known key found for this signature in database
GPG Key ID: 5F43400C21CBFACC
3 changed files with 33 additions and 8 deletions
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2
include/notcurses/notcurses.h
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@ -1035,7 +1035,7 @@ channel_set_alpha(unsigned* channel, int alpha){
return -1;
}
*channel = (alpha << CELL_ALPHA_SHIFT) | (*channel & ~CELL_ALPHA_MASK);
if(alpha == CELL_ALPHA_HIGHCONTRAST){
if(alpha != CELL_ALPHA_HIGHCONTRAST){
*channel |= CELL_BGDEFAULT_MASK;
}
return 0;

4
src/lib/selector.c
View File

@ -217,6 +217,10 @@ ncselector* ncselector_create(ncplane* n, int y, int x, const selector_options*
goto freeitems;
}
cell_init(&ns->background);
uint64_t transchan = 0;
channels_set_fg_alpha(&transchan, CELL_ALPHA_TRANSPARENT);
channels_set_bg_alpha(&transchan, CELL_ALPHA_TRANSPARENT);
ncplane_set_base(ns->ncp, transchan, 0, "");
if(cell_prime(ns->ncp, &ns->background, " ", 0, opts->bgchannels) < 0){
ncplane_destroy(ns->ncp);
goto freeitems;

35
src/poc/selector.c
View File

@ -70,40 +70,61 @@ int main(void){
channels_set_fg(&sopts.boxchannels, 0x20e040);
channels_set_fg(&sopts.opchannels, 0xe08040);
channels_set_fg(&sopts.descchannels, 0x80e040);
channels_set_bg(&sopts.opchannels, 0);
channels_set_bg(&sopts.descchannels, 0);
channels_set_fg(&sopts.footchannels, 0xe00040);
channels_set_fg(&sopts.titlechannels, 0xffff80);
channels_set_fg(&sopts.bgchannels, 0x002000);
channels_set_bg(&sopts.bgchannels, 0x002000);
channels_set_fg_alpha(&sopts.bgchannels, CELL_ALPHA_BLEND);
channels_set_bg_alpha(&sopts.bgchannels, CELL_ALPHA_BLEND);
ncplane_set_fg(notcurses_stdplane(nc), 0x40f040);
ncplane_putstr_aligned(notcurses_stdplane(nc), 0, NCALIGN_RIGHT, "selector widget demo");
struct ncselector* ns = ncselector_create(notcurses_stdplane(nc), 3, 0, &sopts);
struct ncplane* n = notcurses_stdplane(nc);
int averr;
struct ncvisual* ncv = ncplane_visual_open(n, "../data/changes.jpg", &averr);
if(!ncv){
goto err;
}
if(!ncvisual_decode(ncv, &averr)){
goto err;
}
if(ncvisual_render(ncv, 0, 0, 0, 0)){
goto err;
}
ncplane_set_fg(n, 0x40f040);
ncplane_putstr_aligned(n, 0, NCALIGN_RIGHT, "selector widget demo");
struct ncselector* ns = ncselector_create(n, 3, 0, &sopts);
run_selector(nc, ns);
sopts.title = "short round title";
ns = ncselector_create(notcurses_stdplane(nc), 3, 0, &sopts);
ns = ncselector_create(n, 3, 0, &sopts);
run_selector(nc, ns);
sopts.title = "short round title";
sopts.secondary = "now this secondary is also very, very, very outlandishly long, you see";
ns = ncselector_create(notcurses_stdplane(nc), 3, 0, &sopts);
ns = ncselector_create(n, 3, 0, &sopts);
run_selector(nc, ns);
sopts.title = "the whole world is watching";
sopts.secondary = NULL;
sopts.footer = "now this FOOTERFOOTER is also very, very, very outlandishly long, you see";
ns = ncselector_create(notcurses_stdplane(nc), 3, 0, &sopts);
ns = ncselector_create(n, 3, 0, &sopts);
run_selector(nc, ns);
sopts.title = "chomps";
sopts.secondary = NULL;
sopts.footer = NULL;
ns = ncselector_create(notcurses_stdplane(nc), 3, 0, &sopts);
ns = ncselector_create(n, 3, 0, &sopts);
run_selector(nc, ns);
if(notcurses_stop(nc)){
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
err:
notcurses_stop(nc);
return EXIT_FAILURE;
}