| 1 | #ifndef MULTIPROGRESS_H |
| 2 | #define MULTIPROGRESS_H |
| 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <sys/time.h> |
| 6 | |
| 7 | struct progress_ttyinfo { |
| 8 | FILE *fp; /* terminal stream */ |
| 9 | char *termbuf, *capbuf; /* buffers for termcap */ |
| 10 | struct { /* terminal capabilities */ |
| 11 | unsigned f; /* various flags */ |
| 12 | #define TCF_BCE 1u /* erases to background colour */ |
| 13 | const char *cr, *nw, *up, *ce, *cd; /* cursor motion */ |
| 14 | const char *mr, *md, *me; /* reverse video, bold */ |
| 15 | const char *af, *ab, *op; /* colour */ |
| 16 | char pc; /* pad character (termcap) */ |
| 17 | } cap; |
| 18 | unsigned defwd, defht; /* default width and height */ |
| 19 | }; |
| 20 | #define PROGRESS_TTYINFO_INIT \ |
| 21 | { 0, 0, 0, { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, 80, 25 } |
| 22 | |
| 23 | struct progress_state { |
| 24 | struct progress_ttyinfo tty; /* terminal state */ |
| 25 | struct progress_item *items, *end_item; /* list of progress items */ |
| 26 | unsigned nitems; /* number of items */ |
| 27 | unsigned last_lines; /* number written last time */ |
| 28 | struct timeval tv_update; /* last update time */ |
| 29 | }; |
| 30 | #define PROGRESS_STATE_INIT { PROGRESS_TTYINFO_INIT, 0, 0, 0, 0, { 0, 0 } } |
| 31 | |
| 32 | struct progress_render_state { |
| 33 | const struct progress_ttyinfo *tty; /* terminal state */ |
| 34 | unsigned width, height; /* terminal size, in characters */ |
| 35 | char *linebuf; size_t linesz; /* output buffer */ |
| 36 | char *tempbuf; size_t tempsz; /* scratch buffer */ |
| 37 | size_t leftsz, rightsz; /* left and right cursors */ |
| 38 | unsigned leftwd, rightwd; /* left and right widths */ |
| 39 | char *old_bc, *old_up, old_pc; /* saved `termcap' globals */ |
| 40 | }; |
| 41 | |
| 42 | struct progress_item { |
| 43 | struct progress_state *parent; /* controlling progress state */ |
| 44 | struct progress_item *next, *prev; /* forward and backward links */ |
| 45 | void (*render)(struct progress_item */*item*/, /* render function */ |
| 46 | struct progress_render_state */*rs*/); |
| 47 | }; |
| 48 | #define PROGRESS_ITEM_INIT { 0, 0, 0, 0 } |
| 49 | |
| 50 | extern int progress_init(struct progress_state */*progress*/); |
| 51 | extern void progress_free(struct progress_state */*progress*/); |
| 52 | |
| 53 | extern int progress_clear(struct progress_state */*progress*/); |
| 54 | |
| 55 | extern int progress_update(struct progress_state */*progress*/); |
| 56 | |
| 57 | extern int progress_additem(struct progress_state */*progress*/, |
| 58 | struct progress_item */*item*/); |
| 59 | |
| 60 | extern int progress_removeitem(struct progress_state */*progress*/, |
| 61 | struct progress_item */*item*/); |
| 62 | |
| 63 | |
| 64 | extern int progress_vputleft(struct progress_render_state */*render*/, |
| 65 | const char */*fmt*/, va_list /*ap*/); |
| 66 | |
| 67 | extern int progress_vputright(struct progress_render_state */*render*/, |
| 68 | const char */*fmt*/, va_list /*ap*/); |
| 69 | |
| 70 | __attribute__((format(printf, 2, 3))) |
| 71 | extern int progress_putleft(struct progress_render_state */*render*/, |
| 72 | const char */*fmt*/, ...); |
| 73 | |
| 74 | __attribute__((format(printf, 2, 3))) |
| 75 | extern int progress_putright(struct progress_render_state */*render*/, |
| 76 | const char */*fmt*/, ...); |
| 77 | |
| 78 | extern int progress_showbar(struct progress_render_state */*render*/, |
| 79 | double /*frac*/); |
| 80 | |
| 81 | extern int progress_shownotice(struct progress_render_state */*render*/, |
| 82 | int /*bg*/, int /*fg*/); |
| 83 | |
| 84 | #endif |