[gtk+] textview: give pixelcache access to style context

[Christian Hergert <chergert src gnome org>]

commit a3605bc5573253bfbb1e16ca762ce7bcc8700c02
Author: Christian Hergert <christian hergert me>
Date:   Tue Sep 8 15:36:07 2015 -0700

    textview: give pixelcache access to style context
    
    This changes textview to share the style context with the pixelcache.
    Doing so allows pixel cache to optimize the surface creation and use
    a CAIRO_CONTENT_COLOR instead of CAIRO_CONTENT_COLOR_ALPHA when
    appropriate.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=754658

 gtk/gtktextview.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtktextview.c b/gtk/gtktextview.c
index 6dd70c4..697d63f 100644
--- a/gtk/gtktextview.c
+++ b/gtk/gtktextview.c
@@ -1644,6 +1644,7 @@ gtk_text_view_init (GtkTextView *text_view)
   GtkWidget *widget = GTK_WIDGET (text_view);
   GtkTargetList *target_list;
   GtkTextViewPrivate *priv;
+  GtkStyleContext *style_context;
 
   text_view->priv = gtk_text_view_get_instance_private (text_view);
   priv = text_view->priv;
@@ -1652,6 +1653,9 @@ gtk_text_view_init (GtkTextView *text_view)
 
   priv->pixel_cache = _gtk_pixel_cache_new ();
 
+  style_context = gtk_widget_get_style_context (GTK_WIDGET (text_view));
+  _gtk_pixel_cache_set_style_context (priv->pixel_cache, style_context);
+
   /* Set up default style */
   priv->wrap_mode = GTK_WRAP_NONE;
   priv->pixels_above_lines = 0;