Start on import wizard and move JSON wrappers into NostalgiaStudio library

src/nostalgia/studio/lib/json_read.cpp

@@ -0,0 +1,89 @@
+/*
+ * Copyright 2016-2017 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "json_read.hpp"
+
+namespace nostalgia {
+namespace studio {
+
+JsonReader::JsonReader(QJsonObject &obj): m_src(obj) {
+}
+
+ox::Error JsonReader::op(QString fieldName, int *dest) {
+	if (m_src.contains(fieldName)) {
+		return op(m_src[fieldName], dest);
+	} else {
+		return JSON_ERR_FIELD_MISSING;
+	}
+}
+
+ox::Error JsonReader::op(QString fieldName, bool *dest) {
+	if (m_src.contains(fieldName)) {
+		return op(m_src[fieldName], dest);
+	} else {
+		return JSON_ERR_FIELD_MISSING;
+	}
+}
+
+ox::Error JsonReader::op(QString fieldName, double *dest) {
+	if (m_src.contains(fieldName)) {
+		return op(m_src[fieldName], dest);
+	} else {
+		return JSON_ERR_FIELD_MISSING;
+	}
+}
+
+ox::Error JsonReader::op(QString fieldName, QString *dest) {
+	if (m_src.contains(fieldName)) {
+		return op(m_src[fieldName], dest);
+	} else {
+		return JSON_ERR_FIELD_MISSING;
+	}
+}
+
+
+
+ox::Error JsonReader::op(QJsonValueRef src, int *dest) {
+	if (src.isDouble()) {
+		*dest = src.toInt();
+		return 0;
+	} else {
+		return JSON_ERR_UNEXPECTED_TYPE;
+	}
+}
+
+ox::Error JsonReader::op(QJsonValueRef src, bool *dest) {
+	if (src.isBool()) {
+		*dest = src.toBool();
+		return 0;
+	} else {
+		return JSON_ERR_UNEXPECTED_TYPE;
+	}
+}
+
+ox::Error JsonReader::op(QJsonValueRef src, double *dest) {
+	if (src.isDouble()) {
+		*dest = src.toDouble();
+		return 0;
+	} else {
+		return JSON_ERR_UNEXPECTED_TYPE;
+	}
+}
+
+ox::Error JsonReader::op(QJsonValueRef src, QString *dest) {
+	if (src.isString()) {
+		*dest = src.toString();
+		return 0;
+	} else {
+		return JSON_ERR_UNEXPECTED_TYPE;
+	}
+}
+
+
+}
+}