perf ui gtk: Implement helpline_fns

Add helpline API implementation to GTK front-end.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1345104894-14205-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c
new file mode 100644
index 000000000000..2511b3746797
--- /dev/null
+++ b/tools/perf/ui/gtk/helpline.c
@@ -0,0 +1,30 @@
+#include "gtk.h"
+#include "../helpline.h"
+
+static void gtk_helpline_pop(void)
+{
+        if (!perf_gtk__is_active_context(pgctx))
+                return;
+
+        gtk_statusbar_pop(GTK_STATUSBAR(pgctx->statbar),
+                          pgctx->statbar_ctx_id);
+}
+
+static void gtk_helpline_push(const char *msg)
+{
+        if (!perf_gtk__is_active_context(pgctx))
+                return;
+
+        gtk_statusbar_push(GTK_STATUSBAR(pgctx->statbar),
+                           pgctx->statbar_ctx_id, msg);
+}
+
+static struct ui_helpline gtk_helpline_fns = {
+        .pop    = gtk_helpline_pop,
+        .push   = gtk_helpline_push,
+};
+
+void perf_gtk__init_helpline(void)
+{
+        helpline_fns = &gtk_helpline_fns;
+}