implemented node groups

app/node/param.h

@@ -31,6 +31,37 @@ namespace olive {
 class Node;
 class NodeKeyframe;
 
+enum InputFlag {
+  /// By default, inputs are keyframable, connectable, and NOT arrays
+  kInputFlagNormal = 0x0,
+  kInputFlagArray = 0x1,
+  kInputFlagNotKeyframable = 0x2,
+  kInputFlagNotConnectable = 0x4,
+  kInputFlagHidden = 0x8
+};
+
+class InputFlags {
+public:
+  explicit InputFlags()
+  {
+    f_ = kInputFlagNormal;
+  }
+
+  explicit InputFlags(uint64_t flags)
+  {
+    f_ = flags;
+  }
+
+  bool operator&(const InputFlag& f) const
+  {
+    return f_ & f;
+  }
+
+private:
+  uint64_t f_;
+
+};
+
 struct NodeInputPair {
   bool operator==(const NodeInputPair& rhs) const
   {
@@ -98,7 +129,7 @@ public:
     return input_;
   }
 
-  int element() const
+  const int &element() const
   {
     return element_;
   }
@@ -123,10 +154,14 @@ public:
 
   bool IsArray() const;
 
+  InputFlags GetFlags() const;
+
   Node *GetConnectedOutput() const;
 
   NodeValue::Type GetDataType() const;
 
+  QVariant GetDefaultValue() const;
+
   QStringList GetComboBoxStrings() const;
 
   QVariant GetProperty(const QString& key) const;