1 #include <stdio.h> 2 #include <string.h> 3 4 #include "gtk.h" 5 #include "../ui.h" 6 #include "../helpline.h" 7 #include "../../util/debug.h" 8 9 static void gtk_helpline_pop(void) 10 { 11 if (!perf_gtk__is_active_context(pgctx)) 12 return; 13 14 gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar), 15 pgctx->statbar_ctx_id); 16 } 17 18 static void gtk_helpline_push(const char *msg) 19 { 20 if (!perf_gtk__is_active_context(pgctx)) 21 return; 22 23 gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar), 24 pgctx->statbar_ctx_id, msg); 25 } 26 27 static int gtk_helpline_show(const char *fmt, va_list ap) 28 { 29 int ret; 30 char *ptr; 31 static int backlog; 32 33 ret = vscnprintf(ui_helpline__current + backlog, 34 sizeof(ui_helpline__current) - backlog, fmt, ap); 35 backlog += ret; 36 37 /* only first line can be displayed */ 38 ptr = strchr(ui_helpline__current, '\n'); 39 if (ptr && (ptr - ui_helpline__current) <= backlog) { 40 *ptr = '\0'; 41 ui_helpline__puts(ui_helpline__current); 42 backlog = 0; 43 } 44 45 return ret; 46 } 47 48 static struct ui_helpline gtk_helpline_fns = { 49 .pop = gtk_helpline_pop, 50 .push = gtk_helpline_push, 51 .show = gtk_helpline_show, 52 }; 53 54 void perf_gtk__init_helpline(void) 55 { 56 helpline_fns = >k_helpline_fns; 57 } 58