Add preferences support for a GtkFontButton widget.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@15752 57a11ea4-9604-0410-9ed3-97b8803252fd

src/gnome-utils/dialog-preferences.c

@@ -555,6 +555,92 @@ gnc_prefs_sort_pages (GtkNotebook *notebook)
 /*******************************/
 
 
+/** The user changed a GtkFontButton.  Update gconf.  Font selection
+ *  choices are stored as a string.
+ *
+ *  @internal
+ *
+ *  @param gde A pointer to the GtkFontButton that was changed.
+ *  
+ *  @param user_data Unused.
+ */
+static void
+gnc_prefs_font_button_user_cb (GtkFontButton *fb,
+                               gpointer user_data)
+{
+  const gchar *key, *font;
+  time_t time;
+
+  g_return_if_fail(GTK_IS_FONT_BUTTON(fb));
+  key = gtk_widget_get_name(GTK_WIDGET(fb)) + PREFIX_LEN;
+  font = gtk_font_button_get_font_name(fb);
+
+  DEBUG("font_button %s set", key);
+  gnc_gconf_set_string(key, NULL, font, NULL);
+}
+
+
+/** A GtkFontButton choice was updated in gconf.  Update the user
+ *  visible dialog.
+ *
+ *  @internal
+ *
+ *  @param gde A pointer to the GtkFontButton that changed.
+ *
+ *  @param value The new value of the GtkFontButton.
+ */
+static void
+gnc_prefs_font_button_gconf_cb (GtkFontButton *fb,
+                                GConfEntry *entry)
+{
+  const gchar *font;
+
+  g_return_if_fail(GTK_IS_FONT_BUTTON(fb));
+  ENTER("fb %p, entry %p", fb, entry);
+
+  font = gconf_value_get_string(entry->value);
+
+  g_signal_handlers_block_by_func(G_OBJECT(fb),
+				  G_CALLBACK(gnc_prefs_font_button_user_cb),
+				  NULL);
+  gtk_font_button_set_font_name(fb, font);
+  g_signal_handlers_unblock_by_func(G_OBJECT(fb),
+				    G_CALLBACK(gnc_prefs_font_button_user_cb), NULL);
+  LEAVE(" ");
+}
+
+
+/** Connect a GtkFontButton widget to the user callback function.  Set
+ *  the font from its value in gconf.
+ *
+ *  @internal
+ *
+ *  @param gde A pointer to the date_edit that should be connected.
+ */
+static void
+gnc_prefs_connect_font_button (GtkFontButton *fb)
+{
+  const gchar *name, *font;
+
+  g_return_if_fail(GTK_IS_FONT_BUTTON(fb));
+
+  /* Lookup font name based upon gconf setting */
+  name = gtk_widget_get_name(GTK_WIDGET(fb)) + PREFIX_LEN;
+  font = gnc_gconf_get_string(name, NULL, NULL);
+
+  gtk_font_button_set_font_name(fb, font);
+  DEBUG(" font_button %s set", name);
+
+  g_signal_connect(G_OBJECT(fb), "font_set",
+		   G_CALLBACK(gnc_prefs_font_button_user_cb), NULL);
+
+  gtk_widget_show_all(GTK_WIDGET(fb));
+}
+
+
+/**********/
+
+
 /** The user clicked on a radio button.  Update gconf.  Radio button
  *  group choices are stored as a string.  The last component of the
  *  widget name is the string that will be stored.  I.E. The widget name
@@ -1305,6 +1391,9 @@ gnc_prefs_connect_one (const gchar *name,
   } else if (GNC_IS_DATE_EDIT(widget)) {
     DEBUG("  %s - date_edit", name);
     gnc_prefs_connect_date_edit(GNC_DATE_EDIT(widget));
+  } else if (GTK_IS_FONT_BUTTON(widget)) {
+    DEBUG("  %s - entry", name);
+    gnc_prefs_connect_font_button(GTK_FONT_BUTTON(widget));
   } else if (GTK_IS_RADIO_BUTTON(widget)) {
     DEBUG("  %s - radio button", name);
     gnc_prefs_connect_radio_button(GTK_RADIO_BUTTON(widget));
@@ -1518,6 +1607,9 @@ gnc_preferences_gconf_changed (GConfClient *client,
     } else if (GNC_IS_DATE_EDIT(widget)) {
       DEBUG("widget %p - date_edit", widget);
       gnc_prefs_date_edit_gconf_cb(GNC_DATE_EDIT(widget), entry);
+    } else if (GTK_IS_FONT_BUTTON(widget)) {
+      DEBUG("widget %p - font button", widget);
+      gnc_prefs_font_button_gconf_cb(GTK_FONT_BUTTON(widget), entry);
     } else if (GTK_IS_RADIO_BUTTON(widget)) {
       DEBUG("widget %p - radio button", widget);
       gnc_prefs_radio_button_gconf_cb(GTK_RADIO_BUTTON(widget));