[balsa/gtk3] Avoid multiple dynamic casts to BalsaAbWindow

[Peter Bloomfield <peterb src gnome org>]

commit 095561dc8052b132957dcf18bbe36ffe42e6f2a7
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Tue Mar 24 22:31:05 2015 -0400

    Avoid multiple dynamic casts to BalsaAbWindow
    
        * src/ab-window.c (balsa_ab_window_new): avoid multiple dynamic
        casts.

 ChangeLog       |    5 +++++
 src/ab-window.c |   18 ++++++++++--------
 2 files changed, 15 insertions(+), 8 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 06e664d..8c5dcbd 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
 2015-03-24  Peter Bloomfield  <pbloomfield bellsouth net>
 
+       * src/ab-window.c (balsa_ab_window_new): avoid multiple dynamic
+       casts.
+
+2015-03-24  Peter Bloomfield  <pbloomfield bellsouth net>
+
        * src/ab-window.c (balsa_ab_window_new): drop redundant dynamic
        casts to GtkWidget
 
diff --git a/src/ab-window.c b/src/ab-window.c
index 78d30ba..55b5de9 100644
--- a/src/ab-window.c
+++ b/src/ab-window.c
@@ -116,30 +116,32 @@ GtkWidget *
 balsa_ab_window_new(gboolean composing, GtkWindow* parent)
 {
     GtkWidget *ret;
+    BalsaAbWindow *ab;
 
     ret = g_object_new(BALSA_TYPE_AB_WINDOW,
                        "use-header-bar", TRUE,
                        "transient-for", parent,
                        NULL);
-    g_return_val_if_fail(ret, NULL);
+    g_return_val_if_fail(ret != NULL, NULL);
+    ab = (BalsaAbWindow *) ret;
 
-    BALSA_AB_WINDOW(ret)->composing = composing;
+    ab->composing = composing;
 
     if ( composing ) {
        gtk_dialog_add_buttons(GTK_DIALOG(ret),
                                _("_OK"),     GTK_RESPONSE_OK,
                                _("_Cancel"), GTK_RESPONSE_CANCEL,
                                NULL);
-       gtk_widget_show(BALSA_AB_WINDOW(ret)->send_to_label);
-       gtk_widget_show(BALSA_AB_WINDOW(ret)->send_to_list);
-       gtk_widget_show(BALSA_AB_WINDOW(ret)->arrow_box);
+       gtk_widget_show(ab->send_to_label);
+       gtk_widget_show(ab->send_to_list);
+       gtk_widget_show(ab->arrow_box);
     } else {
        gtk_dialog_add_buttons(GTK_DIALOG(ret),
                                _("_Close"), GTK_RESPONSE_CLOSE,
                                NULL);
-       gtk_widget_hide(BALSA_AB_WINDOW(ret)->send_to_label);
-       gtk_widget_hide(BALSA_AB_WINDOW(ret)->send_to_list);
-       gtk_widget_hide(BALSA_AB_WINDOW(ret)->arrow_box);
+       gtk_widget_hide(ab->send_to_label);
+       gtk_widget_hide(ab->send_to_list);
+       gtk_widget_hide(ab->arrow_box);
     }
 
     return ret;