began new node infrastructure

app/node/param.h

@@ -0,0 +1,63 @@
+/***
+
+  Olive - Non-Linear Video Editor
+  Copyright (C) 2019 Olive Team
+
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+***/
+
+#ifndef NODEPARAM_H
+#define NODEPARAM_H
+
+#include <QObject>
+
+class Node;
+
+class NodeParam : public QObject
+{
+public:
+  enum Type {
+    kInput,
+    kOutput,
+    kPassthrough
+  };
+
+  enum DataType {
+    kNone,
+    kInt,
+    kFloat,
+    kColor,
+    kString,
+    kBoolean,
+    kFont,
+    kFile,
+    kTexture,
+    kMatrix,
+    kBlock,
+    kAny
+  };
+
+  NodeParam(Node* parent);
+
+  virtual Type type() = 0;
+
+  static bool AreDataTypesCompatible(const DataType& output_type, const DataType& input_type);
+  static bool AreDataTypesCompatible(const DataType& output_type, const QList<DataType>& input_types);
+
+private:
+
+};
+
+#endif // NODEPARAM_H