perf ui/gtk: Add GTK statusbar widget to browser window

Add statusbar widget to display non-critical messages at the bottom of
the window. This can be used for showing a status change, warning or
help message.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: Pekka Enberg <penberg@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/1338265382-6872-6-git-send-email-namhyung@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 27 insertions, 1 deletions

diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index 33ab1aee3472..ece360db8658 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -122,13 +122,30 @@ static void perf_gtk__show_hists(GtkWidget *window, struct hists *hists)
         gtk_container_add(GTK_CONTAINER(window), view);
 }
 
+static GtkWidget *perf_gtk__setup_statusbar(void)
+{
+        GtkWidget *stbar;
+        unsigned ctxid;
+
+        stbar = gtk_statusbar_new();
+
+        ctxid = gtk_statusbar_get_context_id(GTK_STATUSBAR(stbar),
+                                             "perf report");
+        pgctx->statbar = stbar;
+        pgctx->statbar_ctx_id = ctxid;
+
+        return stbar;
+}
+
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                                   const char *help __used,
                                   void (*timer) (void *arg)__used,
                                   void *arg __used, int delay_secs __used)
 {
         struct perf_evsel *pos;
+        GtkWidget *vbox;
         GtkWidget *notebook;
+        GtkWidget *statbar;
         GtkWidget *window;
 
         signal(SIGSEGV, perf_gtk__signal);
@@ -147,6 +164,8 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
         if (!pgctx)
                 return -1;
 
+        vbox = gtk_vbox_new(FALSE, 0);
+
         notebook = gtk_notebook_new();
 
         list_for_each_entry(pos, &evlist->entries, node) {
@@ -168,7 +187,12 @@ int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                 gtk_notebook_append_page(GTK_NOTEBOOK(notebook), scrolled_window, tab_label);
         }
 
-        gtk_container_add(GTK_CONTAINER(window), notebook);
+        gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 0);
+
+        statbar = perf_gtk__setup_statusbar();
+        gtk_box_pack_start(GTK_BOX(vbox), statbar, FALSE, FALSE, 0);
+
+        gtk_container_add(GTK_CONTAINER(window), vbox);
 
         gtk_widget_show_all(window);
 
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 34fbca6d48a2..206167868c5f 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -10,6 +10,8 @@
 
 struct perf_gtk_context {
         GtkWidget *main_window;
+        GtkWidget *statbar;
+        guint statbar_ctx_id;
 };
 
 extern struct perf_gtk_context *pgctx;