[gtksourceview/wip/chergert/gsv-gtk4: 165/189] view: check for style scheme before applying

[Christian Hergert <chergert src gnome org>]

commit bf020e7af9ce5846a435cc968121d5f4f60457c7
Author: Christian Hergert <chergert redhat com>
Date:   Thu Apr 2 17:40:36 2020 -0700

    view: check for style scheme before applying

 gtksourceview/gtksourceview.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)
---
diff --git a/gtksourceview/gtksourceview.c b/gtksourceview/gtksourceview.c
index e04f305b..d85c836f 100644
--- a/gtksourceview/gtksourceview.c
+++ b/gtksourceview/gtksourceview.c
@@ -4715,8 +4715,11 @@ gtk_source_view_get_gutter (GtkSourceView     *view,
                        gtk_text_view_set_gutter (GTK_TEXT_VIEW (view),
                                                  GTK_TEXT_WINDOW_LEFT,
                                                  GTK_WIDGET (priv->left_gutter));
-                       _gtk_source_style_scheme_apply (priv->style_scheme,
-                                                       GTK_WIDGET (priv->left_gutter));
+                       if (priv->style_scheme != NULL)
+                       {
+                               _gtk_source_style_scheme_apply (priv->style_scheme,
+                                                               GTK_WIDGET (priv->left_gutter));
+                       }
                }
 
                return priv->left_gutter;
@@ -4729,8 +4732,11 @@ gtk_source_view_get_gutter (GtkSourceView     *view,
                        gtk_text_view_set_gutter (GTK_TEXT_VIEW (view),
                                                  GTK_TEXT_WINDOW_RIGHT,
                                                  GTK_WIDGET (priv->right_gutter));
-                       _gtk_source_style_scheme_apply (priv->style_scheme,
-                                                       GTK_WIDGET (priv->right_gutter));
+                       if (priv->style_scheme != NULL)
+                       {
+                               _gtk_source_style_scheme_apply (priv->style_scheme,
+                                                               GTK_WIDGET (priv->right_gutter));
+                       }
                }
 
                return priv->right_gutter;