[gnome-devel-docs] demos: slightly simplify guitar-tuner code.

[Luis Menina <lmenina src gnome org>]

commit 11ba817a4de7241cc91abd0099cd4f4d5f7dd936
Author: Luis Menina <liberforce freeside fr>
Date:   Wed Sep 25 21:40:33 2013 +0200

    demos: slightly simplify guitar-tuner code.

 platform-demos/C/guitar-tuner.c.page         |    7 +++----
 platform-demos/C/guitar-tuner/guitar-tuner.c |    3 +--
 2 files changed, 4 insertions(+), 6 deletions(-)
---
diff --git a/platform-demos/C/guitar-tuner.c.page b/platform-demos/C/guitar-tuner.c.page
index 1829008..8842846 100644
--- a/platform-demos/C/guitar-tuner.c.page
+++ b/platform-demos/C/guitar-tuner.c.page
@@ -231,8 +231,7 @@ pipeline_stop (GstElement* pipeline)
 void on_button_clicked (GtkButton* button,
                         gpointer user_data)
 {
-       GtkWidget* label = gtk_bin_get_child (GTK_BIN (button));
-       const gchar* text = gtk_label_get_label (GTK_LABEL (label));
+       const gchar* text = gtk_button_get_label (button);
 
        if (g_str_equal (text, _("E")))
            play_sound (NOTE_E);
@@ -248,8 +247,8 @@ void on_button_clicked (GtkButton* button,
            play_sound (NOTE_e);
 }
 ]]></code>
-  <p>A pointer to the <code>GtkButton</code> that was clicked is passed as an argument (<code>button</code>) 
to <code>on_button_clicked</code>. We can get the label of that button by using 
<code>gtk_bin_get_child</code>, and then get the text from that label using 
<code>gtk_label_get_label</code>.</p>
-  <p>The label text is then compared to the notes that we have using <code>g_str_equal</code>, and 
<code>play_sound</code> is called with the frequency appropriate for that note. This plays the tone; we have 
a working guitar tuner!</p>
+  <p>A pointer to the <code>GtkButton</code> that was clicked is passed as an argument (<code>button</code>) 
to <code>on_button_clicked</code>. We can get the text of that button using 
<code>gtk_button_get_label</code>.</p>
+  <p>The text is then compared to the notes that we have using <code>g_str_equal</code>, and 
<code>play_sound</code> is called with the frequency appropriate for that note. This plays the tone; we have 
a working guitar tuner!</p>
 </section>
 
 <section id="run">
diff --git a/platform-demos/C/guitar-tuner/guitar-tuner.c b/platform-demos/C/guitar-tuner/guitar-tuner.c
index 4246d02..8f794b9 100644
--- a/platform-demos/C/guitar-tuner/guitar-tuner.c
+++ b/platform-demos/C/guitar-tuner/guitar-tuner.c
@@ -59,8 +59,7 @@ play_sound (gdouble frequency)
 void on_button_clicked (GtkButton* button,
                         gpointer user_data)
 {
-       GtkWidget* label = gtk_bin_get_child (GTK_BIN (button));
-       const gchar* text = gtk_label_get_label (GTK_LABEL (label));
+       const gchar* text = gtk_button_get_label (button);
 
        if (g_str_equal (text, _("E")))
            play_sound (NOTE_E);