[vte] a11y: Use correct function to compare colours

[Christian Persch <chpe src gnome org>]

commit 883088e1fe82b77fba101d9ec02cf96f66c50e91
Author: Christian Persch <chpe gnome org>
Date:   Fri Apr 4 10:45:47 2014 +0200

    a11y: Use correct function to compare colours
    
    Can't compare PangoColors with gdk_color_equal!

 src/vteaccess.c |   17 +++++++++++++----
 1 files changed, 13 insertions(+), 4 deletions(-)
---
diff --git a/src/vteaccess.c b/src/vteaccess.c
index ad4de73..02224af 100644
--- a/src/vteaccess.c
+++ b/src/vteaccess.c
@@ -1455,6 +1455,15 @@ get_attribute_set (struct _VteCharAttributes attr)
        return set;
 }
 
+static gboolean
+_pango_color_equal(const PangoColor *a,
+                   const PangoColor *b)
+{
+        return a->red   == b->red &&
+               a->green == b->green &&
+               a->blue  == b->blue;
+}
+
 static AtkAttributeSet *
 vte_terminal_accessible_get_run_attributes(AtkText *text, gint offset,
                                           gint *start_offset, gint *end_offset)
@@ -1478,8 +1487,8 @@ vte_terminal_accessible_get_run_attributes(AtkText *text, gint offset,
                cur_attr = g_array_index (priv->snapshot_attributes,
                                      struct _VteCharAttributes,
                                      i);
-               if (!gdk_color_equal (&cur_attr.fore, &attr.fore) ||
-                   !gdk_color_equal (&cur_attr.back, &attr.back) ||
+               if (!_pango_color_equal (&cur_attr.fore, &attr.fore) ||
+                   !_pango_color_equal (&cur_attr.back, &attr.back) ||
                    cur_attr.underline != attr.underline ||
                    cur_attr.strikethrough != attr.strikethrough) {
                        *start_offset = i + 1;
@@ -1491,8 +1500,8 @@ vte_terminal_accessible_get_run_attributes(AtkText *text, gint offset,
                cur_attr = g_array_index (priv->snapshot_attributes,
                                      struct _VteCharAttributes,
                                      i);
-               if (!gdk_color_equal (&cur_attr.fore, &attr.fore) ||
-                   !gdk_color_equal (&cur_attr.back, &attr.back) ||
+               if (!_pango_color_equal (&cur_attr.fore, &attr.fore) ||
+                   !_pango_color_equal (&cur_attr.back, &attr.back) ||
                    cur_attr.underline != attr.underline ||
                    cur_attr.strikethrough != attr.strikethrough) {
                        *end_offset = i - 1;