[PATCH v4 7/9] perf annotate browser: Circulate percent, total period, samples view

[Taeung Song]

With a existing 't' hotkey, support the three view based on percent,
total period and number of samples on the annotate TUI browser,
circulating them like below.

First column:

  Percent -> Event count -> Samples -> Percent ...

Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Milian Wolff <milian.wolff@xxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Signed-off-by: Taeung Song <treeze.taeung@xxxxxxxxx>
---
 tools/perf/ui/browsers/annotate.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 6b57e87..6c4db1d 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -838,7 +838,7 @@ static int annotate_browser__run(struct annotate_browser *browser,
 		"n             Search next string\n"
 		"o             Toggle disassembler output/simplified view\n"
 		"s             Toggle source code view\n"
-		"t             Toggle total period view\n"
+		"t             Circulate percent, total period, samples view\n"
 		"/             Search string\n"
 		"k             Toggle line numbers\n"
 		"r             Run available scripts\n"
@@ -915,8 +915,19 @@ static int annotate_browser__run(struct annotate_browser *browser,
 			}
 			continue;
 		case 't':
-			annotate_browser__opts.show_total_period =
-			  !annotate_browser__opts.show_total_period;
+			if (annotate_browser__opts.show_total_period) {
+				annotate_browser__opts.show_total_period = false;
+				annotate_browser__opts.show_nr_samples = true;
+			} else if (annotate_browser__opts.show_nr_samples)
+				annotate_browser__opts.show_nr_samples = false;
+			else
+				annotate_browser__opts.show_total_period = true;
+			annotate_browser__update_addr_width(browser);
+			continue;
+		case 'e':
+			annotate_browser__opts.show_total_period = false;
+			annotate_browser__opts.show_nr_samples =
+				!annotate_browser__opts.show_nr_samples;
 			annotate_browser__update_addr_width(browser);
 			continue;
 		case K_LEFT:
-- 
2.7.4