117 lines
2.6 KiB
C++
117 lines
2.6 KiB
C++
#include "JsonSerializer.h"
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#include <cmath>
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JsonSerializer::JsonSerializer(QObject *parent) : QObject(parent) {
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}
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QByteArray JsonSerializer::serialize(const QVariant &object) {
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addVariant(object);
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return m_buffer;
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}
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void JsonSerializer::addVariant(const QVariant &object) {
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if (object.isValid()) {
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switch(object.type()) {
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case QMetaType::QString:
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case QMetaType::QDateTime:
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{
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addString(object.toString());
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}
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break;
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case QMetaType::QVariantList:
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{
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QVariantList list = object.toList();
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addArray(list);
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}
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break;
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case QMetaType::Double:
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if (std::isinf(object.toDouble()))
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m_buffer.append("null");
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else
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m_buffer.append(object.toString());
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break;
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case QMetaType::QVariantMap:
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{
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QVariantMap map = object.toMap();
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addMap(map);
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break;
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}
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case QMetaType::Bool:
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{
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m_buffer.append(object.toString());
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break;
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}
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case QMetaType::Int:
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{
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m_buffer.append(object.toString());
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break;
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}
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default:
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m_buffer.append("null");
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}
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} else {
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m_buffer.append("null");
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}
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}
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void JsonSerializer::addString(const QString &string) {
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m_buffer.append("\"");
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m_buffer.append(sanitizeString(string));
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m_buffer.append("\"");
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}
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void JsonSerializer::addArray(const QVariantList &list) {
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m_buffer.append("[");
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for (int i = 0; i < list.length(); i++) {
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if (i > 0)
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m_buffer.append(",");
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addVariant(list[i]);
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}
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m_buffer.append("]");
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}
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void JsonSerializer::addMap(const QVariantMap &map) {
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m_buffer.append("{");
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QMapIterator<QString, QVariant> iterator(map);
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while (iterator.hasNext()) {
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iterator.next();
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QString key = iterator.key();
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QVariant value = iterator.value();
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addString(key);
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m_buffer.append(":");
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addVariant(value);
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if (iterator.hasNext())
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m_buffer.append(",");
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}
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m_buffer.append("}");
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}
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QByteArray JsonSerializer::sanitizeString(QString str) {
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str.replace("\\", "\\\\");
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str.replace("\"", "\\\"");
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str.replace("\b", "\\b");
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str.replace("\f", "\\f");
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str.replace("\n", "\\n");
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str.replace("\r", "\\r");
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str.replace("\t", "\\t");
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QByteArray result;
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const ushort* unicode = str.utf16();
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unsigned int i = 0;
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while (unicode[i]) {
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if (unicode[i] > 31 && unicode[i] < 128) {
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result.append(unicode[i]);
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}
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else {
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QString hexCode = QString::number(unicode[i], 16).rightJustified(4, '0');
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result.append("\\u").append(hexCode);
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}
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++i;
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}
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return result;
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}
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