[gnome-color-manager] Show the white point cross in white if the CIE chart is all black

[Richard Hughes <rhughes src gnome org>]

commit 6c77c29086ab851bec34c5667d0963bb32ec9217
Author: Richard Hughes <richard hughsie com>
Date:   Thu Dec 3 11:41:21 2009 +0000

    Show the white point cross in white if the CIE chart is all black

 src/gcm-cie-widget.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/gcm-cie-widget.c b/src/gcm-cie-widget.c
index a993863..785b911 100644
--- a/src/gcm-cie-widget.c
+++ b/src/gcm-cie-widget.c
@@ -1043,7 +1043,12 @@ gcm_cie_widget_draw_white_point_cross (GcmCieWidget *cie, cairo_t *cr)
 	gap = size / 2.0f;
 
 	cairo_set_line_width (cr, 1.0f);
-	cairo_set_source_rgb (cr, 0.0f, 0.0f, 0.0f);
+
+	/* choose color of cross */
+	if (priv->red_x < 0.001 && priv->green_x < 0.001 && priv->blue_x < 0.001)
+		cairo_set_source_rgb (cr, 1.0f, 1.0f, 1.0f);
+	else
+		cairo_set_source_rgb (cr, 0.0f, 0.0f, 0.0f);
 
 	gcm_cie_widget_offset_to_display (cie, priv->white_x, priv->white_y, &wx, &wy);