1 #include <stdio.h> 2 #include <stdlib.h> 3 #include <string.h> 4 #include <pthread.h> 5 6 #include "../../util/debug.h" 7 #include "../helpline.h" 8 #include "../ui.h" 9 #include "../libslang.h" 10 11 static void tui_helpline__pop(void) 12 { 13 } 14 15 static void tui_helpline__push(const char *msg) 16 { 17 const size_t sz = sizeof(ui_helpline__current); 18 19 SLsmg_gotorc(SLtt_Screen_Rows - 1, 0); 20 SLsmg_set_color(0); 21 SLsmg_write_nstring((char *)msg, SLtt_Screen_Cols); 22 SLsmg_refresh(); 23 strncpy(ui_helpline__current, msg, sz)[sz - 1] = '\0'; 24 } 25 26 struct ui_helpline tui_helpline_fns = { 27 .pop = tui_helpline__pop, 28 .push = tui_helpline__push, 29 }; 30 31 void ui_helpline__init(void) 32 { 33 helpline_fns = &tui_helpline_fns; 34 ui_helpline__puts(" "); 35 } 36 37 char ui_helpline__last_msg[1024]; 38 39 int ui_helpline__show_help(const char *format, va_list ap) 40 { 41 int ret; 42 static int backlog; 43 44 pthread_mutex_lock(&ui__lock); 45 ret = vscnprintf(ui_helpline__last_msg + backlog, 46 sizeof(ui_helpline__last_msg) - backlog, format, ap); 47 backlog += ret; 48 49 if (ui_helpline__last_msg[backlog - 1] == '\n') { 50 ui_helpline__puts(ui_helpline__last_msg); 51 SLsmg_refresh(); 52 backlog = 0; 53 } 54 pthread_mutex_unlock(&ui__lock); 55 56 return ret; 57 } 58