[gtksourceview] gutter: selected state optimisation

[Sebastien Lafargue <slafargue src gnome org>]

commit be244c6a42492834e9b9d7a7457ce09f869ae1cc
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Sat Nov 29 15:24:35 2014 +0100

    gutter: selected state optimisation
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740883

 gtksourceview/gtksourcegutter.c |   23 ++++++++---------------
 1 files changed, 8 insertions(+), 15 deletions(-)
---
diff --git a/gtksourceview/gtksourcegutter.c b/gtksourceview/gtksourcegutter.c
index e7872e2..d2171d8 100644
--- a/gtksourceview/gtksourcegutter.c
+++ b/gtksourceview/gtksourcegutter.c
@@ -1058,6 +1058,8 @@ draw_cells (GtkSourceGutter *gutter,
        gint cur_line;
        GtkTextIter selection_start;
        GtkTextIter selection_end;
+       gint selection_start_line = 0;
+       gint selection_end_line = 0;
        gboolean has_selection;
        GtkTextIter start;
        gint i;
@@ -1070,23 +1072,14 @@ draw_cells (GtkSourceGutter *gutter,
 
        cur_line = gtk_text_iter_get_line (&insert_iter);
 
-       gtk_text_buffer_get_selection_bounds (buffer,
-                                             &selection_start,
-                                             &selection_end);
-
-       has_selection = !gtk_text_iter_equal (&selection_start, &selection_end);
+       has_selection = gtk_text_buffer_get_selection_bounds (buffer,
+                                                             &selection_start,
+                                                             &selection_end);
 
        if (has_selection)
        {
-               if (!gtk_text_iter_starts_line (&selection_start))
-               {
-                       gtk_text_iter_set_line_offset (&selection_start, 0);
-               }
-
-               if (!gtk_text_iter_ends_line (&selection_end))
-               {
-                       gtk_text_iter_forward_to_line_end (&selection_end);
-               }
+               selection_start_line = gtk_text_iter_get_line (&selection_start);
+               selection_end_line = gtk_text_iter_get_line (&selection_end);
        }
 
        start = info->start;
@@ -1135,7 +1128,7 @@ draw_cells (GtkSourceGutter *gutter,
                }
 
                if (has_selection &&
-                   gtk_text_iter_in_range (&start, &selection_start, &selection_end))
+                   selection_start_line <= line_to_paint && line_to_paint <= selection_end_line)
                {
                        state |= GTK_SOURCE_GUTTER_RENDERER_STATE_SELECTED;
                }