Remove outdated Qt version checks

Arrangement_on_surface_2/demo/Arrangement_on_surface_2/CurveInputMethods.cpp

@@ -111,13 +111,10 @@ void CurveInputMethod::beginInput_()
 
 static inline void clearPainterPath(QPainterPath& ppath)
 {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 13, 0))
   ppath.clear();
-#else
-  ppath = {};
-#endif
 }
 
+
 void CurveInputMethod::reset()
 {
   this->resetInput();

Arrangement_on_surface_2/demo/Arrangement_on_surface_2/GridGraphicsItem.cpp

@@ -67,11 +67,7 @@ void GridGraphicsItem::setSpacing(int spacing_)
 static inline qreal
 horizontalAdvance(const QFontMetrics& fm, const QString& text)
 {
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
   return fm.horizontalAdvance(text);
-#else
-  return fm.boundingRect(text).width();
-#endif
 }
 
 void GridGraphicsItem::paint(

GraphicsView/include/CGAL/Qt/qglviewer.h

@@ -478,15 +478,13 @@ public Q_SLOTS:
   qreal bufferTextureMaxU() const { return bufferTextureMaxU_; }
   /*! Same as bufferTextureMaxU(), but for the v texture coordinate. */
   qreal bufferTextureMaxV() const { return bufferTextureMaxV_; }
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 4, 0))
   // These methods are part of the QGLWidget public API.
   // As of version 2.7.0, the use of QOpenGLWidget instead means that they have
   // to be provided for backward compatibility.
   void renderText(int x, int y, const QString &str,
                   const QFont &font = QFont());
   void renderText(double x, double y, double z, const QString &str,
                   const QFont &font = QFont());
-#endif
 
 public Q_SLOTS:
   void copyBufferToTexture(GLint, GLenum = GL_NONE);

GraphicsView/include/CGAL/Qt/qglviewer_impl.h

@@ -720,7 +720,6 @@ CGAL_INLINE_FUNCTION
 void CGAL::QGLViewer::drawLight(GLenum, qreal ) const {
 }
 
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 4, 0))
 CGAL_INLINE_FUNCTION
 void CGAL::QGLViewer::renderText(int x, int y, const QString &str,
                            const QFont &font) {
@@ -742,7 +741,6 @@ void CGAL::QGLViewer::renderText(double x, double y, double z, const QString &st
   const Vec proj = camera_->projectedCoordinatesOf(Vec(x, y, z));
   renderText(int(proj.x), int(proj.y), str, font);
 }
-#endif
 
 /*! Draws \p text at position \p x, \p y (expressed in screen coordinates
 pixels, origin in the upper left corner of the widget).

Lab/demo/Lab/CGAL_Lab.cpp

@@ -27,10 +27,8 @@ int& code_to_call_before_creation_of_QCoreApplication(int& i) {
   fmt.setOption(QSurfaceFormat::DebugContext);
   QSurfaceFormat::setDefaultFormat(fmt);
 
-  //for windows
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 3, 0))
+  // for windows
   QCoreApplication::setAttribute(Qt::AA_UseDesktopOpenGL);
-#endif
 
   return i;
 }

Lab/demo/Lab/MainWindow.cpp

@@ -663,15 +663,7 @@ void MainWindow::loadPlugins()
     }
   }
   QString env_path = qgetenv("LAB_DEMO_PLUGINS_PATH");
-#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
   QChar separator = QDir::listSeparator();
-#else
-#if defined(_WIN32)
-  QChar separator = ';';
-#else
-  QChar separator = ':';
-#endif
-#endif
   if(!env_path.isEmpty()) {
 #if defined(_WIN32)
     QString path = qgetenv("PATH");
@@ -2652,17 +2644,10 @@ void MainWindow::resetHeader()
   sceneView->header()->setSectionResizeMode(Scene::RenderingModeColumn, QHeaderView::ResizeToContents);
   sceneView->header()->setSectionResizeMode(Scene::ABColumn, QHeaderView::Fixed);
   sceneView->header()->setSectionResizeMode(Scene::VisibleColumn, QHeaderView::Fixed);
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
   sceneView->header()->resizeSection(Scene::ColorColumn, sceneView->header()->fontMetrics().horizontalAdvance("_#_"));
   sceneView->resizeColumnToContents(Scene::RenderingModeColumn);
   sceneView->header()->resizeSection(Scene::ABColumn, sceneView->header()->fontMetrics().horizontalAdvance(QString("_AB_")));
   sceneView->header()->resizeSection(Scene::VisibleColumn, sceneView->header()->fontMetrics().horizontalAdvance(QString("_View_")));
-#else
-  sceneView->header()->resizeSection(Scene::ColorColumn, sceneView->header()->fontMetrics().width("_#_"));
-  sceneView->resizeColumnToContents(Scene::RenderingModeColumn);
-  sceneView->header()->resizeSection(Scene::ABColumn, sceneView->header()->fontMetrics().width(QString("_AB_")));
-  sceneView->header()->resizeSection(Scene::VisibleColumn, sceneView->header()->fontMetrics().width(QString("_View_")));
-#endif
 }
 
 void MainWindow::reset_default_loaders()

Lab/demo/Lab/Plugins/Mesh_3/Io_image_plugin.cpp

@@ -705,11 +705,7 @@ public Q_SLOTS:
 
       // Find the right width for the label to accommodate at least 9999
       QFontMetrics metric = x_cubeLabel->fontMetrics();
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
       x_cubeLabel->setFixedWidth(metric.horizontalAdvance(QString(".9999.")));
-#else
-      x_cubeLabel->setFixedWidth(metric.width(QString(".9999.")));
-#endif
       x_cubeLabel->setText("0");
       x_cubeLabel->setValidator(validator);
 
@@ -735,11 +731,7 @@ public Q_SLOTS:
 
       // Find the right width for the label to accommodate at least 9999
       QFontMetrics metric = y_cubeLabel->fontMetrics();
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
       y_cubeLabel->setFixedWidth(metric.horizontalAdvance(QString(".9999.")));
-#else
-      y_cubeLabel->setFixedWidth(metric.width(QString(".9999.")));
-#endif
       y_cubeLabel->setText("0");
       y_cubeLabel->setValidator(validator);
       y_slider = new QSlider(mw);
@@ -764,11 +756,7 @@ public Q_SLOTS:
 
       // Find the right width for the label to accommodate at least 9999
       QFontMetrics metric = z_cubeLabel->fontMetrics();
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
       z_cubeLabel->setFixedWidth(metric.horizontalAdvance(QString(".9999.")));
-#else
-      z_cubeLabel->setFixedWidth(metric.width(QString(".9999.")));
-#endif
       z_cubeLabel->setText("0");
       z_cubeLabel->setValidator(validator);
       z_slider = new QSlider(mw);

Lab/demo/Lab/Plugins/PMP/Engrave_text_plugin.cpp

@@ -250,11 +250,7 @@ class Navigation : public CGAL::Qt::GraphicsViewNavigation
     }
     case QEvent::Wheel: {
       QWheelEvent* event = static_cast<QWheelEvent*>(ev);
-#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
-      QPoint pos = event->pos();
-#else
       QPointF pos = event->position();
-#endif
       QPointF old_pos = v->mapToScene(pos.x(), pos.y());
       if(event->angleDelta().y() <0)
         v->scale(1.2, 1.2);

Lab/demo/Lab/Plugins/Surface_mesh/Parameterization_plugin.cpp

@@ -142,11 +142,7 @@ class Navigation : public CGAL::Qt::GraphicsViewNavigation
     }
     case QEvent::Wheel: {
       QWheelEvent* event = static_cast<QWheelEvent*>(ev);
-#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
-      QPoint pos = event->pos();
-#else
       QPointF pos = event->position();
-#endif
       QPointF old_pos = v->mapToScene(pos.x(), pos.y());
       if(event->angleDelta().y() <0)
         v->scale(1.2, 1.2);

Lab/demo/Lab/Viewer.cpp

@@ -1152,13 +1152,7 @@ void Viewer::drawVisualHints()
     //Prints the displayMessage
     QFont font = QFont();
     QFontMetrics fm(font);
-    TextItem *message_text = new TextItem(float(10 +
-                                            #if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
-                                                   fm.horizontalAdvance(d->message)/2)
-                                            #else
-                                                   fm.width(d->message)/2)
-                                            #endif
-                                          ,
+    TextItem *message_text = new TextItem(float(10 + fm.horizontalAdvance(d->message)/2),
                                           float(height()-20),
                                           0, d->message, false,
                                           QFont(), Qt::gray );

Three/include/CGAL/Three/TextRenderer.h

@@ -52,12 +52,7 @@ public :
         :x(p_x), y(p_y), z(p_z),_3D(p_3D), _is_always_visible(always_visible), m_text(p_text), m_font(font), m_color(p_color)
     {
        QFontMetrics fm(m_font);
-#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
        _width = float(fm.horizontalAdvance(m_text)+2);
-#else
-       _width = float(fm.width(m_text)+2);
-#endif
-
        _height = float(fm.height());
     }
     //!\brief Accessor for the string

Three/include/CGAL/Three/Three.h

@@ -31,11 +31,7 @@
 #  define THREE_EXPORT Q_DECL_IMPORT
 #endif
 
-#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
-#define CGAL_QT_SKIP_EMPTY_PARTS QString::SkipEmptyParts
-#else
 #define CGAL_QT_SKIP_EMPTY_PARTS ::Qt::SkipEmptyParts
-#endif
 
 namespace CGAL{
 namespace Three{