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
9static 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
18static 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
27static 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
48static struct ui_helpline gtk_helpline_fns = {
49	.pop	= gtk_helpline_pop,
50	.push	= gtk_helpline_push,
51	.show	= gtk_helpline_show,
52};
53
54void perf_gtk__init_helpline(void)
55{
56	helpline_fns = &gtk_helpline_fns;
57}
58