BarChart: Added color scale support.

* Color scale's extents are not changed: the values are supposed to
  match the values used in the other plots
* Temporarily removed the bar outlines in order to properly display
  colors when the number of bars is equal to or greater than the
  number of available pixels to draw

1 files changed, 5 insertions, 0 deletions

diff --git a/barchart.h b/barchart.h
index 933c004..2d37419 100644
--- a/barchart.h
+++ b/barchart.h
@@ -7,6 +7,7 @@
 
 #include <armadillo>
 
+#include "colorscale.h"
 #include "scale.h"
 
 class BarChart
@@ -19,9 +20,11 @@ public:
 
 signals:
     void valuesChanged(const arma::vec &values) const;
+    void colorScaleChanged(const ColorScale *scale) const;
 
 public slots:
     void setValues(const arma::vec &values);
+    void setColorScale(const ColorScale *scale);
 
 protected:
     QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *);
@@ -31,10 +34,12 @@ protected:
 private:
     QSGNode *newBarNode() const;
     void updateBarNodeGeom(QSGNode *barNode, float x, float width, float height);
+    void updateBarNodeColor(QSGNode *barNode, const QColor &color);
     void updateBars(QSGNode *root);
     bool m_shouldUpdateBars;
 
     arma::vec m_values;
+    const ColorScale *m_colorScale;
     std::vector<int> m_originalIndices;
     LinearScale<float> m_scale;
 };