From 5404374a510b4c09bd4d38331a1255583abb28d4 Mon Sep 17 00:00:00 2001
From: Samuel Fadel <samuelfadel@gmail.com>
Date: Thu, 28 Jan 2016 11:50:52 +0100
Subject: Scatterplot: set default glyph color (white) when no color is
 available.

---
 scatterplot.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scatterplot.cpp b/scatterplot.cpp
index 7666f28..260825c 100644
--- a/scatterplot.cpp
+++ b/scatterplot.cpp
@@ -10,6 +10,7 @@
 #include "geometry.h"
 
 // Glyphs settings
+static const QColor DEFAULT_GLYPH_COLOR(255, 255, 255);
 static const float DEFAULT_GLYPH_SIZE = 8.0f;
 static const qreal GLYPH_OPACITY = 1.0;
 static const qreal GLYPH_OPACITY_SELECTED = 1.0;
@@ -445,7 +446,7 @@ QSGNode *Scatterplot::newGlyphTree()
         glyphNode->setFlag(QSGNode::OwnsGeometry);
 
         material = new QSGFlatColorMaterial;
-        material->setColor(QColor());
+        material->setColor(DEFAULT_GLYPH_COLOR);
         glyphNode->setMaterial(material);
         glyphNode->setFlag(QSGNode::OwnsMaterial);
 
@@ -548,7 +549,7 @@ void Scatterplot::updateGlyphs(QSGNode *glyphsNode)
             if (m_colorData.n_elem > 0) {
                 material->setColor(m_colorScale.color(m_colorData[i]));
             } else {
-                material->setColor(QColor());
+                material->setColor(DEFAULT_GLYPH_COLOR);
             }
             glyphNode->markDirty(QSGNode::DirtyMaterial);
         }
-- 
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