QmlStreamer: Fix event forwarding, implement wheel event support

Author: tribal-tec

deflect/qt/EventReceiver.cpp

@@ -87,10 +87,13 @@ void EventReceiver::_onEvent( int socket )
         case Event::EVT_VIEW_SIZE_CHANGED:
             emit resized( deflectEvent.dx, deflectEvent.dy );
             break;
+        case Event::EVT_WHEEL:
+            emit wheeled( deflectEvent.mouseX, deflectEvent.mouseY,
+                          deflectEvent.dy );
+            break;
 
         case Event::EVT_CLICK:
         case Event::EVT_DOUBLECLICK:
-        case Event::EVT_WHEEL:
         case Event::EVT_SWIPE_LEFT:
         case Event::EVT_SWIPE_RIGHT:
         case Event::EVT_SWIPE_UP:

deflect/qt/EventReceiver.h

@@ -63,6 +63,7 @@ class EventReceiver : public QObject
     void released( double x, double y );
     void moved( double x, double y );
     void resized( double x, double y );
+    void wheeled( double x, double y, double dy );
 
 private slots:
     void _onEvent( int socket );

deflect/qt/QmlStreamerImpl.cpp

@@ -229,28 +229,36 @@ void QmlStreamer::Impl::_requestUpdate()
 
 void QmlStreamer::Impl::_onPressed( double x_, double y_ )
 {
-    QPoint point( x_ * width(), y_ * height( ));
+    const QPoint point( x_ * width(), y_ * height( ));
     QMouseEvent* e = new QMouseEvent( QEvent::MouseButtonPress, point,
                                       Qt::LeftButton, Qt::LeftButton,
                                       Qt::NoModifier );
-    QCoreApplication::postEvent( this, e );
+    QCoreApplication::postEvent( _quickWindow, e );
 }
 
 void QmlStreamer::Impl::_onMoved( double x_, double y_ )
 {
-    QPoint point( x_ * width(), y_ * height( ));
+    const QPoint point( x_ * width(), y_ * height( ));
     QMouseEvent* e = new QMouseEvent( QEvent::MouseMove, point, Qt::LeftButton,
                                       Qt::LeftButton, Qt::NoModifier );
-    QCoreApplication::postEvent( this, e );
+    QCoreApplication::postEvent( _quickWindow, e );
 }
 
 void QmlStreamer::Impl::_onReleased( double x_, double y_ )
 {
-    QPoint point( x_ * width(), y_ * height( ));
+    const QPoint point( x_ * width(), y_ * height( ));
     QMouseEvent* e = new QMouseEvent( QEvent::MouseButtonRelease, point,
                                       Qt::LeftButton, Qt::NoButton,
                                       Qt::NoModifier );
-    QCoreApplication::postEvent( this, e );
+    QCoreApplication::postEvent( _quickWindow, e );
+}
+
+void QmlStreamer::Impl::_onWheeled( double x_, double y_, double deltaY )
+{
+    const QPoint point( x_ * width(), y_ * height( ));
+    QWheelEvent* e = new QWheelEvent( point, deltaY, Qt::NoButton,
+                                      Qt::NoModifier, Qt::Vertical );
+    QCoreApplication::postEvent( _quickWindow, e );
 }
 
 void QmlStreamer::Impl::_onResized( double x_, double y_ )
@@ -341,6 +349,9 @@ bool QmlStreamer::Impl::_setupDeflectStream()
              this, &QmlStreamer::Impl::_onMoved );
     connect( _eventHandler, &EventReceiver::resized,
              this, &QmlStreamer::Impl::_onResized );
+    connect( _eventHandler, &EventReceiver::wheeled,
+             this, &QmlStreamer::Impl::_onWheeled );
+
     return true;
 }
 

deflect/qt/QmlStreamerImpl.h

@@ -93,6 +93,7 @@ private slots:
     void _onReleased( double, double );
     void _onMoved( double, double );
     void _onResized( double, double );
+    void _onWheeled( double, double, double );
 
 private:
     bool _setupDeflectStream();

doc/Changelog.md

@@ -3,7 +3,9 @@ Changelog {#Changelog}
 
 ## Deflect 0.9 (git master)
 
-* [60](https://github.com/BlueBrain/Deflect/pull/60):
+* [64](https://github.com/BlueBrain/Deflect/pull/64):
+  QmlStreamer: Fix event forwarding, implement wheel event support  
+* [60](https://github.com/BlueBrain/Deflect/pull/60): 
   Improved DesktopStreamer: removed selection rectangle, editable list of stream
   hostnames