[gtk] linedisplay: Save paragraph bg color inline

[Timm Bäder <baedert src gnome org>]

commit 2ca56d4c4c70a90b51680a5e564ee26eb5784219
Author: Timm Bäder <mail baedert org>
Date:   Sun Jul 21 09:47:09 2019 +0200

    linedisplay: Save paragraph bg color inline
    
    No need to allocate this separately.

 gtk/gtktextdisplay.c       |  4 ++--
 gtk/gtktextlayout.c        | 14 ++++++++------
 gtk/gtktextlayoutprivate.h |  3 ++-
 3 files changed, 12 insertions(+), 9 deletions(-)
---
diff --git a/gtk/gtktextdisplay.c b/gtk/gtktextdisplay.c
index de02bd3b47..9c2dae9e14 100644
--- a/gtk/gtktextdisplay.c
+++ b/gtk/gtktextdisplay.c
@@ -642,13 +642,13 @@ render_para (GtkTextRenderer    *text_renderer,
         }
       else
         {
-          if (line_display->pg_bg_rgba)
+          if (line_display->pg_bg_rgba_set)
             {
               cairo_t *cr = text_renderer->cr;
 
               cairo_save (cr);
  
-             gdk_cairo_set_source_rgba (text_renderer->cr, line_display->pg_bg_rgba);
+              gdk_cairo_set_source_rgba (text_renderer->cr, &line_display->pg_bg_rgba);
               cairo_rectangle (cr, 
                                line_display->left_margin, selection_y,
                                screen_width, selection_height);
diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index f941e33115..79785773d1 100644
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -1431,11 +1431,16 @@ set_para_values (GtkTextLayout      *layout,
       pango_layout_set_wrap (display->layout, pango_wrap);
     }
   display->total_width = MAX (layout->screen_width, layout->width) - h_margin - h_padding;
-  
+
   if (style->pg_bg_rgba)
-    display->pg_bg_rgba = gdk_rgba_copy (style->pg_bg_rgba);
+    {
+      display->pg_bg_rgba = *style->pg_bg_rgba;
+      display->pg_bg_rgba_set = TRUE;
+    }
   else
-    display->pg_bg_rgba = NULL;
+    {
+      display->pg_bg_rgba_set = FALSE;
+    }
 }
 
 static PangoAttribute *
@@ -2630,9 +2635,6 @@ gtk_text_layout_free_line_display (GtkTextLayout      *layout,
       if (display->cursors)
         g_array_free (display->cursors, TRUE);
 
-      if (display->pg_bg_rgba)
-        gdk_rgba_free (display->pg_bg_rgba);
-
       g_slice_free (GtkTextLineDisplay, display);
     }
 }
diff --git a/gtk/gtktextlayoutprivate.h b/gtk/gtktextlayoutprivate.h
index 8f0b1895d9..8af8465349 100644
--- a/gtk/gtktextlayoutprivate.h
+++ b/gtk/gtktextlayoutprivate.h
@@ -246,7 +246,8 @@ struct _GtkTextLineDisplay
   guint cursor_at_line_end : 1;
   guint size_only : 1;
 
-  GdkRGBA *pg_bg_rgba;
+  GdkRGBA pg_bg_rgba;
+  guint pg_bg_rgba_set : 1;
 };
 
 #ifdef GTK_COMPILATION