Revert "Remove left and right clipping (#169)"

This reverts commit d3ff322.

Author: ThomasKroes

src/ScatterplotPlugin.cpp

@@ -378,7 +378,7 @@ void ScatterplotPlugin::selectPoints()
 
     const auto width        = selectionAreaImage.width();
     const auto height       = selectionAreaImage.height();
-    const auto size         = std::max(width, height);//width < height ? width : height;
+    const auto size         = width < height ? width : height;
     const auto uvOffset     = QPoint((selectionAreaImage.width() - size) / 2.0f, (selectionAreaImage.height() - size) / 2.0f);
 
     QPointF uvNormalized    = {};

src/ScatterplotWidget.cpp

@@ -756,10 +756,8 @@ void ScatterplotWidget::initializeGL()
 
 void ScatterplotWidget::resizeGL(int w, int h)
 {
-    const auto size = std::max(w, h);
-
-    _widgetSizeInfo.width       = size;
-    _widgetSizeInfo.height      = size;
+    _widgetSizeInfo.width       = static_cast<float>(w);
+    _widgetSizeInfo.height      = static_cast<float>(h);
     _widgetSizeInfo.minWH       = _widgetSizeInfo.width < _widgetSizeInfo.height ? _widgetSizeInfo.width : _widgetSizeInfo.height;
     _widgetSizeInfo.ratioWidth  = _widgetSizeInfo.width / _widgetSizeInfo.minWH;
     _widgetSizeInfo.ratioHeight = _widgetSizeInfo.height / _widgetSizeInfo.minWH;
@@ -770,8 +768,8 @@ void ScatterplotWidget::resizeGL(int w, int h)
     // Pixel ratio tells us how many pixels map to a point
     // That is needed as macOS calculates in points and we do in pixels
     // On macOS high dpi displays pixel ration is 2
-    //w *= _pixelRatio;
-    //h *= _pixelRatio;
+    w *= _pixelRatio;
+    h *= _pixelRatio;
 
     _pointRenderer.resize(QSize(w, h));
     _densityRenderer.resize(QSize(w, h));