Add mousewheel support to both basic widget and itemView

pqAbstractItemViewEventPlayer.cxx

@@ -40,6 +40,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <QtDebug>
 #include <QList>
 #include <QListWidget>
+#include <QWheelEvent>
 
 #include "pqEventDispatcher.h"
 
@@ -152,7 +153,6 @@ bool pqAbstractItemViewEventPlayer::playEvent(QObject* Object, const QString& Co
     QStringList args = Arguments.split(',');
     if(args.size() == 6)
       {
-      Qt::MouseButton button = static_cast<Qt::MouseButton>(args[0].toInt());
       Qt::MouseButtons buttons = static_cast<Qt::MouseButton>(args[1].toInt());
       Qt::KeyboardModifiers keym = static_cast<Qt::KeyboardModifier>(args[2].toInt());
       int x = args[3].toInt();
@@ -178,7 +178,15 @@ bool pqAbstractItemViewEventPlayer::playEvent(QObject* Object, const QString& Co
         QRect r = object->visualRect(idx);
         pt = r.topLeft() + QPoint(x,y);
         }
-
+      if (Command == "mouseWheel")
+        {
+//           QEvent::Type type = QEvent::Wheel;
+         int delta = args[0].toInt();
+         QWheelEvent we(QPoint(x,y), delta, buttons, keym);
+         QCoreApplication::sendEvent(Object, &we);
+         return true;
+        }
+      Qt::MouseButton button = static_cast<Qt::MouseButton>(args[0].toInt());
       QEvent::Type type = QEvent::MouseButtonPress;
       type = Command == "mouseMove" ? QEvent::MouseMove : type;
       type = Command == "mouseRelease" ? QEvent::MouseButtonRelease : type;

pqAbstractItemViewEventTranslator.cxx

@@ -136,6 +136,34 @@ bool pqAbstractItemViewEventTranslator::translateEvent(QObject* Object, QEvent*
         emit recordEvent(object, "mouseRelease", info);
         }
       }
+    case QEvent::Wheel:
+      {
+      if(Object == object)
+        {
+        return false;
+        }
+      QPoint relPt = QPoint(0,0);
+      QWheelEvent* wheelEvent = dynamic_cast<QWheelEvent*>(Event);
+      if(wheelEvent)
+        {
+        QString idxStr;
+        QModelIndex idx = object->indexAt(wheelEvent->pos());
+        idxStr = toIndexStr(idx);
+        QRect r = object->visualRect(idx);
+        relPt = wheelEvent->pos() - r.topLeft();
+        int numStep = wheelEvent->delta();
+        int buttons = wheelEvent->buttons();
+        int modifiers = wheelEvent->modifiers();
+        emit emit recordEvent(Object, "mouseWheel", QString("%1,%2,%3,%4,%5")
+                              .arg(numStep)
+                              .arg(buttons)
+                              .arg(modifiers)
+                              .arg(relPt.x())
+                              .arg(relPt.y())
+                              .arg(idxStr));
+        }
+      }
+      break;
     default:
       break;
     }

pqBasicWidgetEventPlayer.cxx

@@ -83,12 +83,20 @@ bool pqBasicWidgetEventPlayer::playEvent(QObject* Object,
       QStringList args = Arguments.split(',');
       if(args.size() == 5)
         {
-        Qt::MouseButton button = static_cast<Qt::MouseButton>(args[0].toInt());
         Qt::MouseButtons buttons = static_cast<Qt::MouseButton>(args[1].toInt());
         Qt::KeyboardModifiers keym = static_cast<Qt::KeyboardModifier>(args[2].toInt());
         int x = args[3].toInt();
         int y = args[4].toInt();
         QPoint pt(x,y);
+        if (Command == "mouseWheel")
+          {
+  //           QEvent::Type type = QEvent::Wheel;
+          int delta = args[0].toInt();
+          QWheelEvent we(QPoint(x,y), delta, buttons, keym);
+          QCoreApplication::sendEvent(Object, &we);
+          return true;
+          }
+        Qt::MouseButton button = static_cast<Qt::MouseButton>(args[0].toInt());
         QEvent::Type type = QEvent::MouseButtonPress;
         type = Command == "mouseMove" ? QEvent::MouseMove : type;
         type = Command == "mouseRelease" ? QEvent::MouseButtonRelease : type;

pqBasicWidgetEventTranslator.cxx

@@ -95,6 +95,22 @@ bool pqBasicWidgetEventTranslator::translateEvent(QObject* Object,
         }
       }
       break;
+    case QEvent::Wheel:
+      {
+      QWheelEvent* wheelEvent = dynamic_cast<QWheelEvent*>(Event);
+      if(wheelEvent)
+        {
+        int buttons = wheelEvent->buttons();
+        int modifiers = wheelEvent->modifiers();
+        emit emit recordEvent(Object, "mouseWheel", QString("%1,%2,%3,%4,%5")
+                              .arg(wheelEvent->delta())
+                              .arg(buttons)
+                              .arg(modifiers)
+                              .arg(wheelEvent->x())
+                              .arg(wheelEvent->y()));
+        }
+      }
+      break;
     default:
       break;
     }