Add QUERY type for vtkSelectionNode

Change-Id: I494ddef84e216560dc2c6d203b60ad29b3b1d4fd

Filtering/vtkSelectionNode.cxx

@@ -60,6 +60,7 @@ vtkSelectionNode::vtkSelectionNode()
 {
   this->SelectionData = vtkDataSetAttributes::New();
   this->Properties = vtkInformation::New();
+  this->QueryString = 0;
 }
 
 //----------------------------------------------------------------------------
@@ -70,6 +71,7 @@ vtkSelectionNode::~vtkSelectionNode()
     {
     this->SelectionData->Delete();
     }
+  this->SetQueryString(0);
 }
 
 //----------------------------------------------------------------------------
@@ -189,6 +191,7 @@ void vtkSelectionNode::ShallowCopy(vtkSelectionNode* input)
   this->Initialize();
   this->Properties->Copy(input->Properties, 0);
   this->SelectionData->ShallowCopy(input->SelectionData);
+  this->SetQueryString(input->GetQueryString());
   this->Modified();
 }
 
@@ -202,6 +205,7 @@ void vtkSelectionNode::DeepCopy(vtkSelectionNode* input)
   this->Initialize();
   this->Properties->Copy(input->Properties, 1);
   this->SelectionData->DeepCopy(input->SelectionData);
+  this->SetQueryString(input->GetQueryString());
   this->Modified();
 }
 

Filtering/vtkSelectionNode.h

@@ -123,7 +123,8 @@ public:
     FRUSTUM,
     LOCATIONS,
     THRESHOLDS,
-    BLOCKS       // used to select blocks within a composite dataset.
+    BLOCKS,       // used to select blocks within a composite dataset.
+    QUERY
   };
 //ETX
 
@@ -157,6 +158,11 @@ public:
   virtual void SetFieldType(int type);
   virtual int GetFieldType();
 
+  // Description:
+  // Set/Get the query expression string.
+  vtkSetStringMacro(QueryString);
+  vtkGetStringMacro(QueryString);
+
   // Description:
   // For location selection of points, if distance is greater than this reject.
   static vtkInformationDoubleKey* EPSILON();
@@ -242,6 +248,7 @@ protected:
 
   vtkInformation* Properties;
   vtkDataSetAttributes* SelectionData;
+  char* QueryString;
 
 private:
   vtkSelectionNode(const vtkSelectionNode&);  // Not implemented.

Graphics/vtkSelectionSource.cxx

@@ -69,6 +69,7 @@ vtkSelectionSource::vtkSelectionSource()
   this->CompositeIndex = -1;
   this->HierarchicalLevel = -1;
   this->HierarchicalIndex = -1;
+  this->QueryString = 0;
 }
 
 //----------------------------------------------------------------------------
@@ -504,6 +505,13 @@ int vtkSelectionSource::RequestData(
     selectionList->Delete();
     }
 
+  if(this->ContentType == vtkSelectionNode::QUERY)
+    {
+    oProperties->Set(vtkSelectionNode::CONTENT_TYPE(), this->ContentType);
+    oProperties->Set(vtkSelectionNode::FIELD_TYPE(), this->FieldType);
+    output->SetQueryString(this->QueryString);
+    }
+
   oProperties->Set(vtkSelectionNode::CONTAINING_CELLS(),
                                this->ContainingCells);  
 

Graphics/vtkSelectionSource.h

@@ -122,6 +122,12 @@ public:
   vtkGetMacro(HierarchicalLevel, int);
   vtkSetMacro(HierarchicalIndex, int);
   vtkGetMacro(HierarchicalIndex, int);
+
+  // Description:
+  // Set/Get the query expression string.
+  vtkSetStringMacro(QueryString);
+  vtkGetStringMacro(QueryString);
+
 protected:
   vtkSelectionSource();
   ~vtkSelectionSource();
@@ -146,6 +152,7 @@ protected:
   int HierarchicalIndex;
   char *ArrayName;
   int ArrayComponent;
+  char *QueryString;
 
 private:
   vtkSelectionSource(const vtkSelectionSource&);  // Not implemented.