[gtksourceview] test-widget: add a draw spaces check button

[Paolo Borelli <pborelli src gnome org>]

commit 9c70e21ab725e1d74e63da15117885b5495f4e74
Author: Paolo Borelli <pborelli gnome org>
Date:   Sat Jan 30 12:47:22 2016 +0100

    test-widget: add a draw spaces check button

 tests/test-widget.c  |   26 ++++++++++++++++++++++++++
 tests/test-widget.ui |   17 +++++++++++++++--
 2 files changed, 41 insertions(+), 2 deletions(-)
---
diff --git a/tests/test-widget.c b/tests/test-widget.c
index 23a5626..ae56206 100644
--- a/tests/test-widget.c
+++ b/tests/test-widget.c
@@ -54,6 +54,7 @@ struct _TestWidgetPrivate
        GtkSourceFile *file;
        GtkSourceMap *map;
        GtkCheckButton *show_map_checkbutton;
+       GtkCheckButton *draw_spaces_checkbutton;
        GtkCheckButton *smart_backspace_checkbutton;
        GtkCheckButton *indent_width_checkbutton;
        GtkSpinButton *indent_width_spinbutton;
@@ -967,6 +968,7 @@ test_widget_class_init (TestWidgetClass *klass)
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, view);
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, map);
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, show_map_checkbutton);
+       gtk_widget_class_bind_template_child_private (widget_class, TestWidget, draw_spaces_checkbutton);
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, smart_backspace_checkbutton);
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, indent_width_checkbutton);
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, indent_width_spinbutton);
@@ -975,6 +977,20 @@ test_widget_class_init (TestWidgetClass *klass)
        gtk_widget_class_bind_template_child_private (widget_class, TestWidget, background_pattern);
 }
 
+static gboolean
+tranform_boolean_to_draw_spaces_flags (GBinding *binding,
+                                       const GValue *from_value,
+                                       GValue *to_value,
+                                       gpointer user_data)
+{
+       gboolean active;
+
+       active = g_value_get_boolean (from_value);
+       g_value_set_flags (to_value, active ? GTK_SOURCE_DRAW_SPACES_ALL : 0);
+
+       return TRUE;
+}
+
 static void
 test_widget_init (TestWidget *self)
 {
@@ -1031,6 +1047,16 @@ test_widget_init (TestWidget *self)
                                "visible",
                                G_BINDING_SYNC_CREATE);
 
+       g_object_bind_property_full (self->priv->draw_spaces_checkbutton,
+                                    "active",
+                                    self->priv->view,
+                                    "draw-spaces",
+                                    G_BINDING_SYNC_CREATE,
+                                    tranform_boolean_to_draw_spaces_flags,
+                                    NULL,
+                                    NULL,
+                                    NULL);
+
        g_object_bind_property (self->priv->smart_backspace_checkbutton,
                                "active",
                                self->priv->view,
diff --git a/tests/test-widget.ui b/tests/test-widget.ui
index 7b54c39..2adb39b 100644
--- a/tests/test-widget.ui
+++ b/tests/test-widget.ui
@@ -212,6 +212,19 @@
               </packing>
             </child>
             <child>
+              <object class="GtkCheckButton" id="draw_spaces_checkbutton">
+                <property name="label">Draw Spaces</property>
+                <property name="visible">True</property>
+                <property name="can_focus">True</property>
+                <property name="receives_default">False</property>
+                <property name="draw_indicator">True</property>
+              </object>
+              <packing>
+                <property name="left_attach">0</property>
+                <property name="top_attach">9</property>
+              </packing>
+            </child>
+            <child>
               <object class="GtkCheckButton" id="smart_backspace_checkbutton">
                 <property name="label">Smart Backspace</property>
                 <property name="visible">True</property>
@@ -221,7 +234,7 @@
               </object>
               <packing>
                 <property name="left_attach">0</property>
-                <property name="top_attach">9</property>
+                <property name="top_attach">10</property>
               </packing>
             </child>
             <child>
@@ -261,7 +274,7 @@
               </object>
               <packing>
                 <property name="left_attach">0</property>
-                <property name="top_attach">10</property>
+                <property name="top_attach">11</property>
               </packing>
             </child>
             <child>