Various unused variables warnings

Closes #121

Libs/Visualization/VTK/Widgets/ctkVTKChartView.cpp

@@ -249,7 +249,6 @@ void ctkVTKChartView::onChartUpdated()
 // ----------------------------------------------------------------------------
 void ctkVTKChartView::chartExtent(double* extent)const
 {
-  Q_D(const ctkVTKChartView);
   extent[0] = extent[2] = extent[4] = extent[6] = VTK_DOUBLE_MAX;
   extent[1] = extent[3] = extent[5] = extent[7] = VTK_DOUBLE_MIN;
   vtkChartXY* chart = this->chart();

Libs/Visualization/VTK/Widgets/ctkVTKScalarsToColorsView.cpp

@@ -491,7 +491,6 @@ void ctkVTKScalarsToColorsView
 bool ctkVTKScalarsToColorsView
 ::areBordersVisible()const
 {
-  Q_D(const ctkVTKScalarsToColorsView);
   return this->chart()->GetAxis(0)->GetVisible();
 }
 

Libs/Widgets/ctkAxesWidget.cpp

@@ -235,7 +235,7 @@ void ctkAxesWidget::paintEvent(QPaintEvent *)
   
   QFontMetrics fm = this->fontMetrics();
   QSize letterSize = fm.size(Qt::TextShowMnemonic, "X") + QSize(1,1);
-  QSize halfLetterSize = letterSize / 2;
+  //QSize halfLetterSize = letterSize / 2;
   int blankSize = (length - diameter) / 2;
   QSize betweenLetterSpace = QSize(blankSize - letterSize.width(), blankSize - letterSize.height()) / 2;
   QList<QRect>  labelRects = d->labelRects(positions, betweenLetterSpace);

Libs/Widgets/ctkFlatProxyModel.cpp

@@ -59,7 +59,6 @@ ctkFlatProxyModelPrivate::ctkFlatProxyModelPrivate(ctkFlatProxyModel &object)
 // ----------------------------------------------------------------------------
 void ctkFlatProxyModelPrivate::init()
 {
-  Q_Q(ctkFlatProxyModel);
 }
 
 // ----------------------------------------------------------------------------
@@ -329,7 +328,6 @@ QModelIndex ctkFlatProxyModel::index(int row, int column, const QModelIndex &par
 // ----------------------------------------------------------------------------
 QModelIndex ctkFlatProxyModel::parent(const QModelIndex &child) const
 {
-  Q_D(const ctkFlatProxyModel);
   if (!child.isValid())
     {
     return QModelIndex();
@@ -358,7 +356,6 @@ int ctkFlatProxyModel::rowCount(const QModelIndex &parent) const
 // ----------------------------------------------------------------------------
 int ctkFlatProxyModel::columnCount(const QModelIndex &parent) const
 {
-  Q_D(const ctkFlatProxyModel);
   QModelIndex proxyChild = this->index(0, 0, parent);
   if (parent.isValid() && !proxyChild.internalPointer())
     {

Libs/Widgets/ctkRangeSlider.cpp

@@ -592,8 +592,8 @@ void ctkRangeSlider::paintEvent( QPaintEvent* )
     }
 
   // TODO: Set this based on the supplied transfer function
-  QColor l = Qt::darkGray;
-  QColor u = Qt::black;
+  //QColor l = Qt::darkGray;
+  //QColor u = Qt::black;
 
   gradient.setColorAt(0, highlight.darker(120));
   gradient.setColorAt(1, highlight.lighter(160));