[gtksourceview] view: queue draw when implicit-trailing-newline property changes

[Sébastien Wilmet <swilmet src gnome org>]

commit 55eb47ab23466ab25bc8284fbc3959356d80cd55
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Jul 23 10:24:26 2016 +0200

    view: queue draw when implicit-trailing-newline property changes

 gtksourceview/gtksourceview.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/gtksourceview/gtksourceview.c b/gtksourceview/gtksourceview.c
index 96a9a64..da0db2c 100644
--- a/gtksourceview/gtksourceview.c
+++ b/gtksourceview/gtksourceview.c
@@ -1451,6 +1451,15 @@ buffer_style_scheme_changed_cb (GtkSourceBuffer *buffer,
 }
 
 static void
+implicit_trailing_newline_changed_cb (GtkSourceBuffer *buffer,
+                                     GParamSpec      *pspec,
+                                     GtkSourceView   *view)
+{
+       /* For drawing or not a trailing newline. */
+       gtk_widget_queue_draw (GTK_WIDGET (view));
+}
+
+static void
 remove_source_buffer (GtkSourceView *view)
 {
        if (view->priv->source_buffer != NULL)
@@ -1467,6 +1476,10 @@ remove_source_buffer (GtkSourceView *view)
                                                      buffer_style_scheme_changed_cb,
                                                      view);
 
+               g_signal_handlers_disconnect_by_func (view->priv->source_buffer,
+                                                     implicit_trailing_newline_changed_cb,
+                                                     view);
+
                g_object_unref (view->priv->source_buffer);
                view->priv->source_buffer = NULL;
        }
@@ -1501,6 +1514,11 @@ set_source_buffer (GtkSourceView *view,
                                  "notify::style-scheme",
                                  G_CALLBACK (buffer_style_scheme_changed_cb),
                                  view);
+
+               g_signal_connect (buffer,
+                                 "notify::implicit-trailing-newline",
+                                 G_CALLBACK (implicit_trailing_newline_changed_cb),
+                                 view);
        }
 
        gtk_source_view_update_style_scheme (view);