Replace pinch event pan to translate to match QML

The pinch handler fires a `onTranslationChanged` event, so sticking to
that naming convention in QQuickVTKPinchEvent.

GUISupport/QtQuick/QQuickVTKInteractorAdapter.cxx

@@ -36,7 +36,7 @@ bool QQuickVTKInteractorAdapter::ProcessEvent(QEvent* e, vtkRenderWindowInteract
     }
     switch (e2->pinchEventType())
     {
-      case QQuickVTKPinchEvent::QQUICKVTK_PAN:
+      case QQuickVTKPinchEvent::QQUICKVTK_TRANSLATE:
       {
         double trans[2] = { e2->translation().x() * this->DevicePixelRatio +
             QVTKInteractorAdapter::DevicePixelRatioTolerance,

GUISupport/QtQuick/QQuickVTKItem.cxx

@@ -591,11 +591,11 @@ bool QQuickVTKItem::event(QEvent* ev)
 }
 
 //-------------------------------------------------------------------------------------------------
-void QQuickVTKItem::pinchHandlerTranslate(const QPointF& position, const QVector2D& delta)
+void QQuickVTKItem::pinchHandlerRotate(const QPointF& position, double delta)
 {
   Q_D(QQuickVTKItem);
-  auto c = QSharedPointer<QQuickVTKPinchEvent>::create(
-    QQuickVTKPinchEvent::QQuickVTKPinch, QQuickVTKPinchEvent::QQUICKVTK_PAN, position, delta);
+  auto c = QSharedPointer<QQuickVTKPinchEvent>::create(QQuickVTKPinchEvent::QQuickVTKPinch,
+    QQuickVTKPinchEvent::QQUICKVTK_ROTATE, position, QVector2D(0, 0), 1.0, delta);
   dispatch_async([d, c](vtkRenderWindow* vtkWindow, vtkUserData) mutable
     { d->qt2vtkInteractorAdapter.ProcessEvent(c.data(), vtkWindow->GetInteractor()); });
 }
@@ -611,11 +611,11 @@ void QQuickVTKItem::pinchHandlerScale(const QPointF& position, double delta)
 }
 
 //-------------------------------------------------------------------------------------------------
-void QQuickVTKItem::pinchHandlerRotate(const QPointF& position, double delta)
+void QQuickVTKItem::pinchHandlerTranslate(const QPointF& position, const QVector2D& delta)
 {
   Q_D(QQuickVTKItem);
-  auto c = QSharedPointer<QQuickVTKPinchEvent>::create(QQuickVTKPinchEvent::QQuickVTKPinch,
-    QQuickVTKPinchEvent::QQUICKVTK_ROTATE, position, QVector2D(0, 0), 1.0, delta);
+  auto c = QSharedPointer<QQuickVTKPinchEvent>::create(
+    QQuickVTKPinchEvent::QQuickVTKPinch, QQuickVTKPinchEvent::QQUICKVTK_TRANSLATE, position, delta);
   dispatch_async([d, c](vtkRenderWindow* vtkWindow, vtkUserData) mutable
     { d->qt2vtkInteractorAdapter.ProcessEvent(c.data(), vtkWindow->GetInteractor()); });
 }

GUISupport/QtQuick/QQuickVTKItem.h

@@ -160,9 +160,9 @@ public Q_SLOTS:
    *
    * @endcode
    */
-  Q_INVOKABLE void pinchHandlerTranslate(const QPointF& position, const QVector2D& delta);
-  Q_INVOKABLE void pinchHandlerScale(const QPointF& position, double delta);
   Q_INVOKABLE void pinchHandlerRotate(const QPointF& position, double delta);
+  Q_INVOKABLE void pinchHandlerScale(const QPointF& position, double delta);
+  Q_INVOKABLE void pinchHandlerTranslate(const QPointF& position, const QVector2D& delta);
   ///@}
 
 protected:

GUISupport/QtQuick/QQuickVTKPinchEvent.cxx

@@ -28,7 +28,7 @@ QQuickVTKPinchEvent::QQuickVTKPinchEvent(QEvent::Type type, PinchTypes pinchType
 //-------------------------------------------------------------------------------------------------
 void QQuickVTKPinchEvent::setPinchEventType(QQuickVTKPinchEvent::PinchTypes typ)
 {
-  if (typ < QQUICKVTK_PAN || typ > QQUICKVTK_NONE)
+  if (typ < QQUICKVTK_TRANSLATE || typ > QQUICKVTK_NONE)
   {
     return;
   }

GUISupport/QtQuick/QQuickVTKPinchEvent.h

@@ -23,7 +23,7 @@ class VTKGUISUPPORTQTQUICK_EXPORT QQuickVTKPinchEvent : public QEvent
 public:
   enum PinchTypes
   {
-    QQUICKVTK_PAN,
+    QQUICKVTK_TRANSLATE,
     QQUICKVTK_SCALE,
     QQUICKVTK_ROTATE,
     QQUICKVTK_NONE