Fix a virtual function override

src/ui/linechart/LinechartPlot.cc

@@ -412,7 +412,7 @@ void LinechartPlot::setScaling(int scaling)
  * @param id The string id of the curve
  * @param visible The visibility: True to make it visible
  **/
-void LinechartPlot::setVisible(QString id, bool visible)
+void LinechartPlot::setVisibleById(QString id, bool visible)
 {
     if(curves.contains(id)) {
         curves.value(id)->setVisible(visible);
@@ -437,7 +437,7 @@ void LinechartPlot::setVisible(QString id, bool visible)
  **/
 void LinechartPlot::hideCurve(QString id)
 {
-    setVisible(id, false);
+    setVisibleById(id, false);
 }
 
 /**
@@ -450,7 +450,7 @@ void LinechartPlot::hideCurve(QString id)
  **/
 void LinechartPlot::showCurve(QString id)
 {
-    setVisible(id, true);
+    setVisibleById(id, true);
 }
 
 //void LinechartPlot::showCurve(QString id, int position)

src/ui/linechart/LinechartPlot.h

@@ -213,7 +213,7 @@ public slots:
     void setActive(bool active);
 
     // Functions referring to the currently active plot
-    void setVisible(QString id, bool visible);
+    void setVisibleById(QString id, bool visible);
 
     /**
      * @brief Set the color of a curve and its symbols.

src/ui/linechart/LinechartWidget.cc

@@ -171,7 +171,7 @@ void LinechartWidget::selectAllCurves(bool all)
 {
     QMap<QString, QLabel*>::iterator i;
     for (i = curveLabels->begin(); i != curveLabels->end(); ++i) {
-        activePlot->setVisible(i.key(), all);
+        activePlot->setVisibleById(i.key(), all);
     }
 }
 
@@ -647,7 +647,7 @@ void LinechartWidget::addCurve(const QString& curve, const QString& unit)
 
     // Set UI components to initial state
     checkBox->setChecked(false);
-    plot->setVisible(curve+unit, false);
+    plot->setVisibleById(curve+unit, false);
 }
 
 /**
@@ -952,7 +952,7 @@ void LinechartWidget::takeButtonClick(bool checked)
 
     if(button != NULL)
     {
-        activePlot->setVisible(button->objectName(), checked);
+        activePlot->setVisibleById(button->objectName(), checked);
         QWidget* colorIcon = colorIcons.value(button->objectName(), 0);
         if (colorIcon)
         {