implemented node derivative that loads all metadata/code from an external file

Implemented the ability to load a node externally. This XML data could also eventually be copy/pasted between instances of Olive alongside XML data for other nodes and their connections to allow copying entire node trees.
2019-12-15 02:31:48 +11:00
parent 0b7782e129
commit b276df2940
2 changed files with 314 additions and 0 deletions
@@ -0,0 +1,54 @@
+#ifndef EXTERNALNODE_H
+#define EXTERNALNODE_H
+
+#include <QXmlStreamReader>
+
+#include "node.h"
+
+/**
+ * @brief A node generated from an external XML metadata file
+ */
+class ExternalNode : public Node
+{
+public:
+  ExternalNode(const QString& xml_meta_filename);
+
+  virtual Node* copy() const override;
+
+  virtual QString Name() const override;
+  virtual QString id() const override;
+  virtual QString Category() const override;
+  virtual QString Description() const override;
+
+  virtual void Retranslate() override;
+
+  virtual bool IsAccelerated() const override;
+  virtual QString AcceleratedCodeVertex() const override;
+  virtual QString AcceleratedCodeFragment() const override;
+  virtual int AcceleratedCodeIterations() const override;
+  virtual NodeInput* AcceleratedCodeIterativeInput() const override;
+
+private:
+  void XMLReadLanguageString(QXmlStreamReader* reader, QMap<QString, QString>* map);
+  void XMLReadEffect(QXmlStreamReader *reader);
+  void XMLReadIterations(QXmlStreamReader* reader);
+  void XMLReadParam(QXmlStreamReader* reader);
+  void XMLReadShader(QXmlStreamReader* reader, QString& destination);
+
+  QString xml_filename_;
+
+  QMap<QString, QString> names_;
+  QMap<QString, QString> descriptions_;
+  QMap<QString, QString> categories_;
+  QMap<QString, QMap<QString, QString> > param_names_;
+
+  QString id_;
+
+  QString frag_code_;
+  QString vert_code_;
+
+  int iterations_;
+  NodeInput* iteration_input_;
+};
+
+#endif // EXTERNALNODE_H