Polish the painting/affine example

- Use member initialization
- Remove C-style casts
- Add space around operators
- Use qsizetype for list indexes
- Remove commented out debugging code

Task-number: QTBUG-97095
Pick-to: 6.2
Change-Id: I11a17fa6e7f17968367a57291d83ee6fba731a34
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

1 files changed, 8 insertions, 8 deletions

diff --git a/examples/widgets/painting/affine/xform.h b/examples/widgets/painting/affine/xform.h
index 1dce3b26da..0c28435057 100644
--- a/examples/widgets/painting/affine/xform.h
+++ b/examples/widgets/painting/affine/xform.h
@@ -88,7 +88,7 @@ public:
 
     void mousePressEvent(QMouseEvent *e) override;
     void resizeEvent(QResizeEvent *e) override;
-    HoverPoints *hoverPoints() { return pts; }
+    HoverPoints *hoverPoints() { return m_hoverPoints; }
 
     bool animation() const { return timer.isActive(); }
     qreal shear() const { return m_shear; }
@@ -104,7 +104,7 @@ public:
 
 public slots:
     void setAnimation(bool animate);
-    void updateCtrlPoints(const QPolygonF &);
+    void updateControlPoints(const QPolygonF &);
     void changeRotation(int rotation);
     void changeScale(int scale);
     void changeShear(int shear);
@@ -130,12 +130,12 @@ protected:
 #endif
 
 private:
-    QPolygonF ctrlPoints;
-    HoverPoints *pts;
-    qreal m_rotation;
-    qreal m_scale;
-    qreal m_shear;
-    XFormType m_type;
+    QPolygonF m_controlPoints{{250, 250}, {350, 250}};
+    HoverPoints *m_hoverPoints;
+    qreal m_rotation = 0;
+    qreal m_scale = 1;
+    qreal m_shear = 0;
+    XFormType m_type = VectorType;
     QPixmap m_pixmap;
     QString m_text;
     QBasicTimer timer;