Begin Tag's structure
parent
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commit
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@ -1,4 +1,9 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="CMakeWorkspace" PROJECT_DIR="$PROJECT_DIR$" />
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<component name="CidrRootsConfiguration">
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<excludeRoots>
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<file path="$PROJECT_DIR$/cmake-build-debug" />
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</excludeRoots>
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</component>
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</project>
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#include "AbstractNamedTag.h"
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#include <QtEndian>
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#include <QtCore/QDataStream>
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AbstractNamedTag::AbstractNamedTag(const quint8 id) : AbstractTag(id) {}
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const bool AbstractNamedTag::readFromData(QDataStream &data) {
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quint16 size;
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data >> size;
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size = qFromBigEndian(size);
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char *rawName = new char[size];
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if (data.readRawData(rawName, size) == -1) {
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return false;
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}
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m_name = QString::fromUtf8(rawName);
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return readPayloadFromData(data);
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}
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const bool AbstractNamedTag::writeToData(QDataStream &data) const {
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const QByteArray rawName = m_name.toUtf8();
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data << qToBigEndian(rawName.size()) << rawName.constData();
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return writePayloadToData(data);
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}
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const QString &AbstractNamedTag::name() const {
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return m_name;
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}
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void AbstractNamedTag::setName(const QString &name) {
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m_name = name;
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}
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@ -0,0 +1,53 @@
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#ifndef NBTMODIFIER_ABSTRACTNAMEDTAG_H
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#define NBTMODIFIER_ABSTRACTNAMEDTAG_H
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#include "AbstractTag.h"
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#include <QtCore/QString>
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class AbstractNamedTag : public AbstractTag {
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public:
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/**
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* Get the tag name
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*
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* @return The tag name
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*/
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const QString& name() const;
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/**
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* Set the tag name
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*
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* @param name The new tag name
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*/
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void setName (const QString &name);
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protected:
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explicit AbstractNamedTag(const quint8 id);
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virtual const bool readFromData(QDataStream &data) override;
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virtual const bool writeToData(QDataStream &data) const override;
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/**
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* Read a tag payload from a data stream
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*
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* @param data The data stream
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*
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* @return True if read is success, otherwise false
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*/
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virtual const bool readPayloadFromData(QDataStream &data) = 0;
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/**
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* Write a tag payload to a data stream
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*
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* @param data The data stream
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*
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* @return True if write is success, otherwise false
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*/
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virtual const bool writePayloadToData(QDataStream &data) const = 0;
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private:
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/**
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* The tag name
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*/
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QString m_name;
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};
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#endif //NBTMODIFIER_ABSTRACTNAMEDTAG_H
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#include "AbstractTag.h"
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#include "TagEnd.h"
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#include "TagByte.h"
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#include <QtCore/QDataStream>
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AbstractTag::AbstractTag(const quint8 id) : m_id(id) {}
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const quint8 AbstractTag::id() const {
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return m_id;
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}
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AbstractTag *AbstractTag::fromData(QDataStream &data, bool *ok) {
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quint8 id;
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data >> id;
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AbstractTag *tag = nullptr;
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switch (id) {
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case TagEnd::ID:
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tag = new TagEnd();
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case TagByte::ID:
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tag = new TagByte();
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}
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if (tag == nullptr) {
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return nullptr;
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}
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*ok = tag->readFromData(data);
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return tag;
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}
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QByteArray AbstractTag::toData(bool *ok) {
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QByteArray data;
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QDataStream stream(data);
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stream << id();
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*ok = writeToData(stream);
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return data;
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}
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@ -0,0 +1,50 @@
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#ifndef NBTMODIFIER_ABSTRACTTAG_H
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#define NBTMODIFIER_ABSTRACTTAG_H
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#include <QtGlobal>
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class QDataStream;
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/**
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* Interface for all NBT tags
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*/
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class AbstractTag {
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public:
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const quint8 id() const;
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static AbstractTag *fromData(QDataStream &data, bool *ok = nullptr);
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QByteArray toData(bool *ok = nullptr);
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protected:
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/**
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* Create a new tag
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*
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* @param id
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*/
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explicit AbstractTag(const quint8 id);
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/**
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* Read a tag from a data stream
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*
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* @param data The data stream
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*
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* @return True if read is success, otherwise false
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*/
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virtual const bool readFromData(QDataStream &data) = 0;
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/**
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* Write a tag to a data stream
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*
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* @param data The data stream
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*
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* @return True if write is success, otherwise false
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*/
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virtual const bool writeToData(QDataStream &data) const = 0;
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private:
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/**
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* The tag's ID
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*/
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const quint8 m_id;
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};
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#endif //NBTMODIFIER_ABSTRACTTAG_H
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@ -0,0 +1,14 @@
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#include "TagByte.h"
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#include <QtCore/QDataStream>
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TagByte::TagByte(const qint8 value) : AbstractNamedTag(ID), m_value(value) {}
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bool const TagByte::readPayloadFromData(QDataStream &data) {
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data >> m_value;
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return true;
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}
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bool const TagByte::writePayloadToData(QDataStream &data) const {
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data << m_value;
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return true;
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}
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@ -0,0 +1,20 @@
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#ifndef NBTMODIFIER_TAGBYTE_H
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#define NBTMODIFIER_TAGBYTE_H
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#include "AbstractNamedTag.h"
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class TagByte : public AbstractNamedTag {
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public:
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static constexpr quint8 ID = 1;
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TagByte(const qint8 value = 0);
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protected:
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virtual bool const readPayloadFromData(QDataStream &data) override;
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virtual bool const writePayloadToData(QDataStream &data) const override;
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private:
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qint8 m_value;
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};
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#endif //NBTMODIFIER_TAGBYTE_H
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@ -0,0 +1,11 @@
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#include "TagEnd.h"
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TagEnd::TagEnd() : AbstractTag(ID) {
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}
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bool const TagEnd::readFromData(QDataStream &data) {
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return true;
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}
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bool const TagEnd::writeToData(QDataStream &data) const {
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return true;
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}
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@ -0,0 +1,17 @@
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#ifndef NBTMODIFIER_TAGEND_H
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#define NBTMODIFIER_TAGEND_H
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#include "AbstractTag.h"
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class TagEnd : public AbstractTag {
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public:
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static constexpr quint8 ID = 0;
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explicit TagEnd();
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protected:
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virtual bool const readFromData(QDataStream &data) override;
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virtual bool const writeToData(QDataStream &data) const override;
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};
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#endif //NBTMODIFIER_TAGEND_H
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