allowed parameters to have data without fields

CMakeLists.txt

@@ -225,6 +225,8 @@ set(OLIVE_SOURCES
   nodes/nodes.h
   nodes/oldeffectnode.h
   nodes/oldeffectnode.cpp
+  nodes/nodes/nodeblock.h
+  nodes/nodes/nodeblock.cpp
   nodes/nodes/nodeimageoutput.cpp
   nodes/nodes/nodeimageoutput.h
   nodes/nodes/nodemedia.cpp

nodes/node.cpp

@@ -12,6 +12,11 @@ QString Node::name()
   return tr("Node");
 }
 
+QString Node::id()
+{
+  return "node";
+}
+
 void Node::AddParameter(NodeIO *param)
 {
   param->setParent(this);

nodes/node.h

@@ -14,6 +14,7 @@ public:
   Node(NodeGraph* parent);
 
   virtual QString name();
+  virtual QString id();
 
   void AddParameter(NodeIO* row);
   int IndexOfParameter(NodeIO* row);

nodes/nodedatatypes.cpp

@@ -30,7 +30,7 @@ QString olive::nodes::DataTypeToString(DataType type) {
     return "TEXTURE";
   case kMatrix:
     return "MATRIX";
-  case kClip:
+  case kBlock:
     return "CLIP";
   default:
     return QString();
@@ -68,7 +68,7 @@ olive::nodes::DataType olive::nodes::StringToDataType(const QString &s)
   } else if (s == "MATRIX") {
     return kMatrix;
   } else if (s == "CLIP") {
-    return kClip;
+    return kBlock;
   }
   return kInvalid;
 }

nodes/nodedatatypes.h

@@ -61,7 +61,7 @@ enum DataType {
   kMatrix,
 
   /** Value is a Clip node */
-  kClip,
+  kBlock,
 
   /** Total count of valid node data types. Never use this as an actual data type. */
   kDataTypeCount

nodes/nodeio.cpp

@@ -138,6 +138,10 @@ bool NodeIO::IsKeyframable()
 
 QVariant NodeIO::GetValueAt(double timecode)
 {
+  if (FieldCount() == 0) {
+    return data_;
+  }
+
   Q_ASSERT(FieldCount() == 1);
 
   return Field(0)->GetValueAt(timecode);
@@ -145,6 +149,11 @@ QVariant NodeIO::GetValueAt(double timecode)
 
 void NodeIO::SetValueAt(double timecode, const QVariant &value)
 {
+  if (FieldCount() == 0) {
+    data_ = value;
+    return;
+  }
+
   Q_ASSERT(FieldCount() == 1);
 
   Field(0)->SetValueAt(timecode, value);

nodes/nodeio.h

@@ -461,6 +461,11 @@ private:
    * @brief Internal array of node edges. Access with AddEdge() and RemoveEdge().
    */
   QVector<NodeEdgePtr> node_edges_;
+
+  /**
+   * @brief Internal data object for rows without fields
+   */
+  QVariant data_;
 };
 
 #endif // EFFECTROW_H