NAME¶

notcurses_lines - operations on lines and boxes

SYNOPSIS¶

#include <notcurses/notcurses.h>

int ncplane_hline_interp(struct ncplane* n, const nccell* c, int len, uint64_t c1, uint64_t c2);

static inline int ncplane_hline(struct ncplane* n, const nccell* c, int len);

int ncplane_vline_interp(struct ncplane* n, const nccell* c, int len, uint64_t c1, uint64_t c2);

static inline int ncplane_vline(struct ncplane* n, const nccell* c, int len);

#define NCBOXMASK_TOP    0x0001
#define NCBOXMASK_RIGHT  0x0002
#define NCBOXMASK_BOTTOM 0x0004
#define NCBOXMASK_LEFT   0x0008
#define NCBOXGRAD_TOP    0x0010
#define NCBOXGRAD_RIGHT  0x0020
#define NCBOXGRAD_BOTTOM 0x0040
#define NCBOXGRAD_LEFT   0x0080
#define NCBOXCORNER_MASK 0x0300
#define NCBOXCORNER_SHIFT 8u
    

int ncplane_box(struct ncplane* n, const nccell* ul, const nccell* ur, const nccell* ll, const nccell* lr, const nccell* hline, const nccell* vline, int ystop, int xstop, unsigned ctlword);

static inline int ncplane_box_sized(struct ncplane* n, const nccell* ul, const nccell* ur, const nccell* ll, const nccell* lr, const nccell* hline, const nccell* vline, int ylen, int xlen, unsigned ctlword);

static inline int ncplane_perimeter(struct ncplane* n, const nccell* ul, const nccell* ur, const nccell* ll, const nccell* lr, const nccell* hline, const nccell* vline, unsigned ctlword)

static inline int cells_load_box(struct ncplane* n, uint32_t styles, uint64_t channels, nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl, const char* gclusters);

static inline int cells_rounded_box(struct ncplane* n, uint32_t styles, uint64_t channels, nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl);

static inline int ncplane_rounded_box(struct ncplane* n, uint32_t styles, uint64_t channels, int ystop, int xstop, unsigned ctlword);

static inline int ncplane_rounded_box_sized(struct ncplane* n, uint32_t styles, uint64_t channels, int ylen, int xlen, unsigned ctlword);

static inline int cells_double_box(struct ncplane* n, uint32_t styles, uint64_t channels, nccell* ul, nccell* ur, nccell* ll, nccell* lr, nccell* hl, nccell* vl);

static inline int ncplane_double_box(struct ncplane* n, uint32_t styles, uint64_t channels, int ystop, int xstop, unsigned ctlword);

static inline int ncplane_double_box_sized(struct ncplane* n, uint32_t styles, uint64_t channels, int ylen, int xlen, unsigned ctlword);

int ncplane_polyfill_yx(struct ncplane* n, int y, int x, const nccell* c);

int ncplane_gradient(struct ncplane* n, const char* egc, uint32_t stylemask, uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr, int ystop, int xstop);

static inline int ncplane_gradient_sized(struct ncplane* n, const char* egc, uint32_t stylemask, uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr, int ylen, int xlen);

int ncplane_highgradient(struct ncplane* n, uint32_t ul, uint32_t ur, uint32_t ll, uint32_t lr, int ystop, int xstop);

int ncplane_highgradient_sized(struct ncplane* n, uint32_t ul, uint32_t ur, uint32_t ll, uint32_t lr, int ylen, int xlen);

int ncplane_format(struct ncplane* n, int ystop, int xstop, uint32_t stylemask);

int ncplane_stain(struct ncplane* n, int ystop, int xstop, uint64_t ul, uint64_t ur, uint64_t ll, uint64_t lr);

DESCRIPTION¶

ncplane_format sets the attributes of every cell in the region having its upper-left corner at the cursor's current position, and its lower-right corner at ystop, xstop.

Box- and line-drawing is unaffected by a plane's scrolling status.

RETURN VALUES¶

ncplane_format returns -1 if either ystop or xstop is less than the current equivalent position, otherwise 0.

SEE ALSO¶

notcurses(3), notcurses_cell(3), notcurses_plane(3)

AUTHORS¶

nick black <nickblack@linux.com>.