1 files changed, 6 insertions, 5 deletions
diff --git a/src/widgets/graphicsview/qsimplex_p.h b/src/widgets/graphicsview/qsimplex_p.h
index 842044fa7f..8cb295e7ef 100644
--- a/src/widgets/graphicsview/qsimplex_p.h
+++ b/src/widgets/graphicsview/qsimplex_p.h
@@ -149,9 +149,10 @@ struct QSimplexConstraint
 
 class QSimplex
 {
+    Q_DISABLE_COPY(QSimplex)
 public:
     QSimplex();
-    virtual ~QSimplex();
+    ~QSimplex();
 
     qreal solveMin();
     qreal solveMax();
@@ -163,8 +164,8 @@ public:
 
 private:
     // Matrix handling
-    qreal valueAt(int row, int column);
-    void setValueAt(int row, int column, qreal value);
+    inline qreal valueAt(int row, int column);
+    inline void setValueAt(int row, int column, qreal value);
     void clearRow(int rowIndex);
     void clearColumns(int first, int last);
     void combineRows(int toIndex, int fromIndex, qreal factor);
@@ -179,8 +180,8 @@ private:
     // Helpers
     void clearDataStructures();
     void solveMaxHelper();
-    enum solverFactor { Minimum = -1, Maximum = 1 };
-    qreal solver(solverFactor factor);
+    enum SolverFactor { Minimum = -1, Maximum = 1 };
+    qreal solver(SolverFactor factor);
     void collectResults();
 
     QList<QSimplexConstraint *> constraints;