diff --git a/GUI/View/Mask/MaskGraphicsScene.cpp b/GUI/View/Mask/MaskGraphicsScene.cpp
index 238df92413b6bff44861e6a6856938af9ef28b65..bb767e0a4b197fef7acc02da73fd35d8e9d1eec4 100644
--- a/GUI/View/Mask/MaskGraphicsScene.cpp
+++ b/GUI/View/Mask/MaskGraphicsScene.cpp
@@ -264,7 +264,7 @@ void MaskGraphicsScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
     else if (isValidForRectangleShapeDrawing(event))
         processRectangleOrEllipseItem(event);
     else
-	QGraphicsScene::mousePressEvent(event);
+        QGraphicsScene::mousePressEvent(event);
 }
 
 void MaskGraphicsScene::mouseMoveEvent(QGraphicsSceneMouseEvent* event)
@@ -601,8 +601,8 @@ void MaskGraphicsScene::processRectangleOrEllipseItem(QGraphicsSceneMouseEvent*
             newMaskItem = new EllipseItem;
         else if (m_context.isROIMode())
             newMaskItem = new RegionOfInterestItem;
-	else
-	    ASSERT_NEVER;
+        else
+            ASSERT_NEVER;
 
         m_maskContainerModel->insertMask(0, newMaskItem);
         m_currentItem = newMaskItem; // downcast MaskItem* -> MaskRoot*
diff --git a/GUI/View/Mask/MaskViewFactory.cpp b/GUI/View/Mask/MaskViewFactory.cpp
index ba428375dff0692e222ccf6cd4ab627df16ec498..9c203ab0f8bbe600fd1095b18eb17c3ff5e89759 100644
--- a/GUI/View/Mask/MaskViewFactory.cpp
+++ b/GUI/View/Mask/MaskViewFactory.cpp
@@ -18,7 +18,7 @@
 #include "GUI/View/Mask/RegionOfInterestDisplay.h"
 #include "GUI/View/Shape/AllMasksDisplay.h"
 #include "GUI/View/Shape/EllipseDisplay.h"
-#include "GUI/View/Shape/LineViews.h"
+#include "GUI/View/Shape/LineDisplays.h"
 #include "GUI/View/Shape/MaskContainerDisplay.h"
 #include "GUI/View/Shape/PolygonDisplay.h"
 #include "GUI/View/Shape/PolygonPointDisplay.h"
@@ -41,10 +41,10 @@ IMaskElementDisplay* MaskViewFactory::createMaskView(MaskRoot* item)
         return new PolygonPointDisplay(mask);
 
     if (auto* mask = dynamic_cast<VerticalLineItem*>(item))
-        return new VerticalLineView(mask);
+        return new VerticalLineDisplay(mask);
 
     if (auto* mask = dynamic_cast<HorizontalLineItem*>(item))
-        return new HorizontalLineView(mask);
+        return new HorizontalLineDisplay(mask);
 
     if (auto* mask = dynamic_cast<EllipseItem*>(item))
         return new EllipseDisplay(mask);
diff --git a/GUI/View/Shape/LineViews.cpp b/GUI/View/Shape/LineDisplays.cpp
similarity index 77%
rename from GUI/View/Shape/LineViews.cpp
rename to GUI/View/Shape/LineDisplays.cpp
index 2107e78dd4ff3146c7482f8ac3330cda2e01c128..1e4171843ed13dd05e51352a9ec1d90111b082ee 100644
--- a/GUI/View/Shape/LineViews.cpp
+++ b/GUI/View/Shape/LineDisplays.cpp
@@ -2,8 +2,8 @@
 //
 //  BornAgain: simulate and fit reflection and scattering
 //
-//! @file      GUI/View/Shape/LineViews.cpp
-//! @brief     Implements classes VerticalLineView and HorizontalLineView
+//! @file      GUI/View/Shape/LineDisplays.cpp
+//! @brief     Implements classes VerticalLineDisplay and HorizontalLineDisplay
 //!
 //! @homepage  http://www.bornagainproject.org
 //! @license   GNU General Public License v3 or higher (see COPYING)
@@ -12,7 +12,7 @@
 //
 //  ************************************************************************************************
 
-#include "GUI/View/Shape/LineViews.h"
+#include "GUI/View/Shape/LineDisplays.h"
 #include "GUI/Model/Mask/MaskItems.h"
 #include "GUI/View/Shape/MaskUtil.h"
 #include "GUI/View/Shape/SceneAdaptor.h"
@@ -27,7 +27,7 @@ const double mask_visible_width = 3.0;
 
 } // namespace
 
-VerticalLineView::VerticalLineView(VerticalLineItem* item)
+VerticalLineDisplay::VerticalLineDisplay(VerticalLineItem* item)
     : IMaskElementDisplay(item)
     , m_item(item)
 {
@@ -37,31 +37,31 @@ VerticalLineView::VerticalLineView(VerticalLineItem* item)
     setCursor(Qt::SizeHorCursor);
 }
 
-QPainterPath VerticalLineView::shape() const
+QPainterPath VerticalLineDisplay::shape() const
 {
     QPainterPath p;
     p.addRect(QRectF(-mask_visible_width / 2., 0.0, mask_visible_width, m_bounding_rect.height()));
     return p;
 }
 
-MaskRoot* VerticalLineView::parameterizedItem() const
+MaskRoot* VerticalLineDisplay::parameterizedItem() const
 {
     return m_item;
 }
 
-void VerticalLineView::onChangedX()
+void VerticalLineDisplay::onChangedX()
 {
     setBlockOnProperty(true);
     m_item->setPosX(fromSceneX(this->x()));
     setBlockOnProperty(false);
 }
 
-void VerticalLineView::onPropertyChange()
+void VerticalLineDisplay::onPropertyChange()
 {
     setX(toSceneX(m_item->posX()));
 }
 
-void VerticalLineView::update_view()
+void VerticalLineDisplay::update_view()
 {
     QRectF plot_scene_rectangle = m_adaptor->viewportRectangle();
 
@@ -72,7 +72,7 @@ void VerticalLineView::update_view()
     update();
 }
 
-void VerticalLineView::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
+void VerticalLineDisplay::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
 {
     bool mask_value = static_cast<VerticalLineItem*>(m_item)->maskValue();
     painter->setBrush(MaskUtil::getMaskBrush(mask_value));
@@ -91,8 +91,8 @@ void VerticalLineView::paint(QPainter* painter, const QStyleOptionGraphicsItem*,
 }
 
 //! Allows item movement along x, prevent movement along y
-QVariant VerticalLineView::itemChange(QGraphicsItem::GraphicsItemChange change,
-                                      const QVariant& value)
+QVariant VerticalLineDisplay::itemChange(QGraphicsItem::GraphicsItemChange change,
+                                         const QVariant& value)
 {
     if (isSelected() && change == ItemPositionChange && scene()) {
         QPointF newPos = value.toPointF();
@@ -104,7 +104,7 @@ QVariant VerticalLineView::itemChange(QGraphicsItem::GraphicsItemChange change,
 
 // --------------------------------------------------------------------------------------------- //
 
-HorizontalLineView::HorizontalLineView(HorizontalLineItem* item)
+HorizontalLineDisplay::HorizontalLineDisplay(HorizontalLineItem* item)
     : IMaskElementDisplay(item)
     , m_item(item)
 {
@@ -114,7 +114,7 @@ HorizontalLineView::HorizontalLineView(HorizontalLineItem* item)
     setCursor(Qt::SizeVerCursor);
 }
 
-QPainterPath HorizontalLineView::shape() const
+QPainterPath HorizontalLineDisplay::shape() const
 {
     QPainterPath path;
     path.addRect(
@@ -122,24 +122,24 @@ QPainterPath HorizontalLineView::shape() const
     return path;
 }
 
-MaskRoot* HorizontalLineView::parameterizedItem() const
+MaskRoot* HorizontalLineDisplay::parameterizedItem() const
 {
     return m_item;
 }
 
-void HorizontalLineView::onChangedY()
+void HorizontalLineDisplay::onChangedY()
 {
     setBlockOnProperty(true);
     m_item->setPosY(fromSceneY(this->y()));
     setBlockOnProperty(false);
 }
 
-void HorizontalLineView::onPropertyChange()
+void HorizontalLineDisplay::onPropertyChange()
 {
     setY(toSceneY(m_item->posY()));
 }
 
-void HorizontalLineView::update_view()
+void HorizontalLineDisplay::update_view()
 {
     QRectF plot_scene_rectangle = m_adaptor->viewportRectangle();
 
@@ -150,7 +150,7 @@ void HorizontalLineView::update_view()
     update();
 }
 
-void HorizontalLineView::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
+void HorizontalLineDisplay::paint(QPainter* painter, const QStyleOptionGraphicsItem*, QWidget*)
 {
     bool mask_value = static_cast<HorizontalLineItem*>(m_item)->maskValue();
     painter->setBrush(MaskUtil::getMaskBrush(mask_value));
@@ -169,8 +169,8 @@ void HorizontalLineView::paint(QPainter* painter, const QStyleOptionGraphicsItem
 }
 
 //! Allows item movement along y, prevent movement along x
-QVariant HorizontalLineView::itemChange(QGraphicsItem::GraphicsItemChange change,
-                                        const QVariant& value)
+QVariant HorizontalLineDisplay::itemChange(QGraphicsItem::GraphicsItemChange change,
+                                           const QVariant& value)
 {
     if (isSelected() && change == ItemPositionChange && scene()) {
         QPointF newPos = value.toPointF();
diff --git a/GUI/View/Shape/LineViews.h b/GUI/View/Shape/LineDisplays.h
similarity index 77%
rename from GUI/View/Shape/LineViews.h
rename to GUI/View/Shape/LineDisplays.h
index ac781f479c1ed5cd95e7a1b248378885e380e36a..43380aa5a1bd4cb1f957fb76770f0e65d45225da 100644
--- a/GUI/View/Shape/LineViews.h
+++ b/GUI/View/Shape/LineDisplays.h
@@ -2,8 +2,8 @@
 //
 //  BornAgain: simulate and fit reflection and scattering
 //
-//! @file      GUI/View/Shape/LineViews.h
-//! @brief     Defines classes VerticalLineView and HorizontalLineView
+//! @file      GUI/View/Shape/LineDisplays.h
+//! @brief     Defines classes VerticalLineDisplay and HorizontalLineDisplay
 //!
 //! @homepage  http://www.bornagainproject.org
 //! @license   GNU General Public License v3 or higher (see COPYING)
@@ -12,8 +12,8 @@
 //
 //  ************************************************************************************************
 
-#ifndef BORNAGAIN_GUI_VIEW_SHAPE_LINEVIEWS_H
-#define BORNAGAIN_GUI_VIEW_SHAPE_LINEVIEWS_H
+#ifndef BORNAGAIN_GUI_VIEW_SHAPE_LINEDISPLAYS_H
+#define BORNAGAIN_GUI_VIEW_SHAPE_LINEDISPLAYS_H
 
 #include "GUI/View/Shape/IMaskElementDisplay.h"
 
@@ -22,12 +22,12 @@ class HorizontalLineItem;
 
 //! This is a view of VerticalLineItem mask
 
-class VerticalLineView : public IMaskElementDisplay {
+class VerticalLineDisplay : public IMaskElementDisplay {
     Q_OBJECT
 public:
     int type() const override { return MaskType::VERTICALLINE; }
 
-    explicit VerticalLineView(VerticalLineItem* item);
+    explicit VerticalLineDisplay(VerticalLineItem* item);
 
     QPainterPath shape() const override;
     MaskRoot* parameterizedItem() const override;
@@ -48,12 +48,12 @@ private:
 
 //! This is a view of HorizontalLineItem mask
 
-class HorizontalLineView : public IMaskElementDisplay {
+class HorizontalLineDisplay : public IMaskElementDisplay {
     Q_OBJECT
 public:
     int type() const override { return MaskType::HORIZONTALLINE; }
 
-    explicit HorizontalLineView(HorizontalLineItem* item);
+    explicit HorizontalLineDisplay(HorizontalLineItem* item);
 
     QPainterPath shape() const override;
     MaskRoot* parameterizedItem() const override;
@@ -71,4 +71,4 @@ private:
     HorizontalLineItem* m_item;
 };
 
-#endif // BORNAGAIN_GUI_VIEW_SHAPE_LINEVIEWS_H
+#endif // BORNAGAIN_GUI_VIEW_SHAPE_LINEDISPLAYS_H