Add FBXNode to JSON stream class

libraries/fbx/src/FBXToJSON.cpp

@@ -0,0 +1,82 @@
+//
+//  FBXToJSON.cpp
+//  libraries/fbx/src
+//
+//  Created by Simon Walton on 5/4/2013.
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#include "FBXToJSON.h"
+#include "FBX.h"
+
+template<typename T>
+inline FBXToJSON& FBXToJSON::operator<<(QVector<T>& arrayProp) {
+    *this << "[";
+    for (auto& prop : arrayProp) {
+        *(std::ostringstream*)this << prop << ", ";
+    }
+    *this << "] ";
+    if (arrayProp.size() > 4) {
+        *this << "# " << arrayProp.size() << " items";
+    }
+    *this << '\n';
+
+    return *this;
+}
+
+FBXToJSON& FBXToJSON::operator<<(const FBXNode& fbxNode) {
+    using std::string;
+
+    string nodeName(fbxNode.name);
+    if (nodeName.empty()) nodeName = "nodename";
+
+    *this << string(_indentLevel * 4, ' ') << '"' << nodeName << "\":    {\n";
+    ++_indentLevel;
+    int p = 0;
+    for (auto& prop : fbxNode.properties) {
+        *this << string(_indentLevel * 4, ' ') << "\"p" << p++ << "\":   ";
+        switch (prop.userType()) {
+        case QMetaType::Short:
+        case QMetaType::Bool:
+        case QMetaType::Int:
+        case QMetaType::LongLong:
+        case QMetaType::Double:
+        case QMetaType::Float:
+            *this << prop.toString().toStdString();
+            break;
+
+        case QMetaType::QString:
+        case QMetaType::QByteArray:
+            *this << '"' << prop.toString().toStdString() << '"';
+            break;
+           
+        default:
+            if (prop.canConvert<QVector<float>>()) {
+                *this << prop.value<QVector<float>>();
+            } else if (prop.canConvert<QVector<double>>()) {
+                *this << prop.value<QVector<double>>();
+            } else if (prop.canConvert<QVector<bool>>()) {
+                *this << prop.value<QVector<bool>>();
+            } else if (prop.canConvert<QVector<qint32>>()) {
+                *this << prop.value<QVector<qint32>>();
+            } else if (prop.canConvert<QVector<qint64>>()) {
+                *this << prop.value<QVector<qint64>>();
+            } else {
+                *this << "<unimplemented value>";
+            }
+            break;
+        }
+        *this << ",\n";
+    }
+
+    for (auto child : fbxNode.children) {
+        *this << child;
+    }
+
+    *this << string(_indentLevel * 4, ' ') << "},\n";
+    --_indentLevel;
+    return *this;
+}

libraries/fbx/src/FBXToJSON.h

@@ -0,0 +1,30 @@
+//
+//  FBXToJSON.h
+//  libraries/fbx/src
+//
+//  Created by Simon Walton on 5/4/2013.
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_FBXToJSON_h
+#define hifi_FBXToJSON_h
+
+#include <sstream>
+
+// Forward declarations.
+class FBXNode;
+template<typename T> class QVector;
+
+class FBXToJSON : public std::ostringstream {
+public:
+    FBXToJSON& operator<<(const FBXNode& fbxNode);
+
+private:
+    template<typename T> FBXToJSON& operator<<(QVector<T>& arrayProp);
+    int _indentLevel { 0 };
+};
+
+#endif  // hifi_FBXToJSON_h