#911 Fixed picking on category legend

ApplicationCode/UserInterface/RiuViewer.cpp

@@ -720,6 +720,26 @@ caf::PdmObject* RiuViewer::lastPickedObject() const
     return m_viewerCommands->currentPickedObject();
 }
 
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+cvf::OverlayItem* RiuViewer::pickFixedPositionedLegend(int winPosX, int winPosY)
+{
+    int translatedMousePosX = winPosX;
+    int translatedMousePosY = height() - winPosY;
+
+    for (auto overlayItem : m_visibleLegends)
+    {
+        if (overlayItem->layoutScheme() == cvf::OverlayItem::FIXED_POSITION &&
+            overlayItem->pick(translatedMousePosX, translatedMousePosY, overlayItem->fixedPosition(), overlayItem->sizeHint()))
+        {
+            return overlayItem.p();
+        }
+    }
+
+    return nullptr;
+}
+
 //--------------------------------------------------------------------------------------------------
 /// 
 //--------------------------------------------------------------------------------------------------

ApplicationCode/UserInterface/RiuViewer.h

@@ -92,6 +92,8 @@ public:
     cvf::Vec3d      lastPickPositionInDomainCoords() const;
     caf::PdmObject* lastPickedObject() const;
 
+    cvf::OverlayItem*   pickFixedPositionedLegend(int winPosX, int winPosY);
+
 public slots:
     virtual void    slotSetCurrentFrame(int frameIndex);
     virtual void    slotEndAnimation();

ApplicationCode/UserInterface/RiuViewerCommands.cpp

@@ -804,6 +804,11 @@ void RiuViewerCommands::ijkFromCellIndex(size_t gridIdx, size_t cellIndex,  size
 bool RiuViewerCommands::handleOverlayItemPicking(int winPosX, int winPosY)
 {
     cvf::OverlayItem* pickedOverlayItem = m_viewer->overlayItem(winPosX, winPosY);
+    if (!pickedOverlayItem)
+    {
+        pickedOverlayItem = m_viewer->pickFixedPositionedLegend(winPosX, winPosY);
+    }
+
     if (pickedOverlayItem)
     {
         caf::PdmObject* objToSelect = NULL;