linux-kernel - [PATCH 5/6] perf gtk/hists: Add a double-click handler for callchains

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Date:	Tue,  4 Jun 2013 18:22:16 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Arnaldo Carvalho de Melo <acme@...stprotocols.net>
Cc:	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Paul Mackerras <paulus@...ba.org>,
	Ingo Molnar <mingo@...nel.org>,
	Namhyung Kim <namhyung.kim@....com>,
	LKML <linux-kernel@...r.kernel.org>,
	Pekka Enberg <penberg@...nel.org>,
	Jiri Olsa <jolsa@...hat.com>, David Ahern <dsahern@...il.com>
Subject: [PATCH 5/6] perf gtk/hists: Add a double-click handler for callchains

From: Namhyung Kim <namhyung.kim@....com>

If callchain is displayed, add "row-activated" signal handler for
handling double-click or pressing ENTER key action.

Reviewed-by: Pekka Enberg <penberg@...nel.org>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/ui/gtk/hists.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index b4a0dd2404a2..3a5d01319988 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -187,6 +187,18 @@ static void perf_gtk__add_callchain(struct rb_root *root, GtkTreeStore *store,
 	}
 }
 
+static void on_row_activated(GtkTreeView *view, GtkTreePath *path,
+			     GtkTreeViewColumn *col __maybe_unused,
+			     gpointer user_data __maybe_unused)
+{
+	bool expanded = gtk_tree_view_row_expanded(view, path);
+
+	if (expanded)
+		gtk_tree_view_collapse_row(view, path);
+	else
+		gtk_tree_view_expand_row(view, path, FALSE);
+}
+
 static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 				 float min_pcnt)
 {
@@ -314,6 +326,8 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists,
 		}
 	}
 
+	g_signal_connect(view, "row-activated",
+			 G_CALLBACK(on_row_activated), NULL);
 	gtk_container_add(GTK_CONTAINER(window), view);
 }
 
-- 
1.7.11.7

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