1.9 KiB
% notcurses_menu(3) % nick black nickblack@linux.com % v1.1.3
NAME
notcurses_menu - operations on menus
SYNOPSIS
#include <notcurses.h>
struct ncmenu;
struct ncmenu_section {
char* name; // utf-8 c string
struct ncmenu_item {
char* desc; // utf-8 menu item, NULL for horizontal separator
ncinput shortcut; // shortcut, all should be distinct
}* items;
int itemcount;
};
typedef struct ncmenu_options {
bool bottom; // on the bottom row, as opposed to top row
bool hiding; // hide the menu when not being used
struct ncmenu_section* sections; // 'sectioncount' menu_sections
int sectioncount; // must be positive
uint64_t headerchannels; // styling for header
uint64_t sectionchannels; // styling for sections
} ncmenu_options;
struct ncmenu ncmenu_create(struct notcurses nc, const menu_options* opts);**
int ncmenu_unroll(struct ncmenu n, int sectionidx);*
int ncmenu_rollup(struct ncmenu n);*
const char ncmenu_selected(const struct ncmenu n);**
struct ncplane ncmenu_plane(struct ncmenu n);**
int ncmenu_destroy(struct ncmenu n);*
DESCRIPTION
A notcurses instance supports menu bars on the top or bottom row of the true screen. A menu is composed of sections, which are in turn composed of items. Either no sections are visible, and the menu is rolled up, or exactly one section is unrolled. ncmenu_rollup places an ncmenu in the rolled up state. ncmenu_unroll rolls up any unrolled section, and unrolls the specified one. ncmenu_destroy removes a menu bar, and frees all associated resources.
ncmenu_selected return the selected item description, or NULL if no section is unrolled.
RETURN VALUES
ncmenu_create returns NULL on error, or a pointer to a valid new ncmenu. Other functions return non-zero on error, or zero on success. Almost all errors are due to invalid parameters.
SEE ALSO
notcurses(3), notcurses_input(3)