Make ParaView's "interaction mode" available to SMTK...

... when translating selections.

smtk/extension/paraview/appcomponents/plugin/vtkSMTKEncodeSelection.cxx

@@ -31,6 +31,7 @@
 #include "pqView.h"
 
 #include "vtkSMPropertyHelper.h"
+#include "vtkSMRenderViewProxy.h"
 
 #include "vtkInformation.h"
 #include "vtkMultiBlockDataSet.h"
@@ -163,7 +164,7 @@ void vtkSMTKEncodeSelection::ProcessRawSelection(
 bool vtkSMTKEncodeSelection::ProcessResource(pqSMTKWrapper* wrapper,
   const smtk::resource::ResourcePtr& resource, const smtk::view::SelectionPtr& smtkSelection,
   vtkSMTKResourceRepresentation* resourceRep, vtkSelection* rawSelection,
-  vtkSMRenderViewProxy* vtkNotUsed(viewProxy) /*unused*/, int modifier, bool selectBlocks)
+  vtkSMRenderViewProxy* viewProxy, int modifier, bool selectBlocks)
 {
   (void)resource;
   (void)rawSelection;
@@ -187,6 +188,8 @@ bool vtkSMTKEncodeSelection::ProcessResource(pqSMTKWrapper* wrapper,
     {
       continue;
     }
+    int mode = vtkSMPropertyHelper(viewProxy, "InteractionMode").GetAsInt();
+    operation->setInteractionMode(mode);
     operation->setSMTKSelection(smtkSelection);
     operation->setVTKSelection(rawSelection);
     operation->setVTKData(mbds);

smtk/extension/paraview/server/RespondToVTKSelection.cxx

@@ -20,6 +20,8 @@
 
 #include "smtk/io/Logger.h"
 
+#include "vtkPVRenderView.h"
+
 #include "vtkCompositeDataIterator.h"
 #include "vtkIdTypeArray.h"
 #include "vtkInformation.h"
@@ -73,6 +75,29 @@ RespondToVTKSelection::~RespondToVTKSelection()
   }
 }
 
+bool RespondToVTKSelection::setInteractionMode(int mode)
+{
+  if (mode == m_interactionMode)
+  {
+    return false;
+  }
+  switch (mode)
+  {
+    case vtkPVRenderView::INTERACTION_MODE_UNINTIALIZED: // fall through
+    case vtkPVRenderView::INTERACTION_MODE_3D:           // fall through
+    case vtkPVRenderView::INTERACTION_MODE_2D:           // fall through
+    case vtkPVRenderView::INTERACTION_MODE_SELECTION:    // fall through
+    case vtkPVRenderView::INTERACTION_MODE_ZOOM:         // fall through
+    case vtkPVRenderView::INTERACTION_MODE_POLYGON:      // fall through
+      m_interactionMode = mode;
+      return true;
+    default:
+      vtkGenericWarningMacro("Unknown interaction mode (" << mode << ") during selection.");
+      break;
+  }
+  return false;
+}
+
 bool RespondToVTKSelection::setVTKData(vtkMultiBlockDataSet* mbds)
 {
   if (m_vtkData == mbds)

smtk/extension/paraview/server/RespondToVTKSelection.h

@@ -45,6 +45,27 @@ public:
   smtkSuperclassMacro(smtk::operation::XMLOperation);
   virtual ~RespondToVTKSelection();
 
+  /**\brief Set/get the interaction mode.
+    *
+    * The interaction mode values correspond to the
+    * vtkPVRenderView::InteractionModes enum:
+    *
+    * + INTERACTION_MODE_3D = 0,
+    * + INTERACTION_MODE_2D,
+    * + INTERACTION_MODE_SELECTION,
+    * + INTERACTION_MODE_ZOOM,
+    * + INTERACTION_MODE_POLYGON
+    *
+    * Generally speaking, primitive selections should not be created
+    * when the interaction mode is INTERACTION_MODE_3D, INTERACTION_MODE_2D,
+    * or INTERACTION_MODE_ZOOM (as these modes are for camera manipulation
+    * and whole-object picking).
+    *
+    * This is set by the vtkSMTKWrapper before the operation is invoked.
+    */
+  bool setInteractionMode(int mode);
+  int interactionMode() const { return m_interactionMode; }
+
   /**\brief Set/get the multiblock data holding per-component tessellation info.
     *
     * This is set by the vtkSMTKWrapper before the operation is invoked.
@@ -127,6 +148,7 @@ protected:
   /// Fail or succeed quietly.
   void generateSummary(Operation::Result&) override{};
 
+  int m_interactionMode;
   ::vtkSelection* m_vtkSelection;
   vtkMultiBlockDataSet* m_vtkData;
   smtk::view::WeakSelectionPtr m_smtkSelection;