Migration of QtMvvm from github
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#include "settingsgenerator.h"
#include <QDebug>
#include <QFileInfo>
#include <QDir>
#define TABS QString{QLatin1Char('\t')}.repeated(intendent)
SettingsGenerator::SettingsGenerator(const QString &hdrPath, const QString &srcPath) :
_hdrFile{hdrPath},
_srcFile{srcPath},
_hdr{&_hdrFile},
_src{&_srcFile}
{}
void SettingsGenerator::process(const QString &inPath)
{
// read settings and adjust defaults
auto settings = readDocument(inPath);
if(!settings.name)
settings.name = QFileInfo{_hdrFile.fileName()}.baseName();
if(!_hdrFile.open(QIODevice::WriteOnly | QIODevice::Text))
throw FileException{_hdrFile};
writeHeader(settings);
_hdrFile.close();
if(!_srcFile.open(QIODevice::WriteOnly | QIODevice::Text))
throw FileException{_srcFile};
writeSource(settings);
_srcFile.close();
}
bool SettingsGenerator::read_type_mapping(QXmlStreamReader &reader, QHash<QString, QString> &data, bool hasNext)
{
TypeMappingGroup grp;
hasNext = read_TypeMappingGroup(reader, grp, hasNext);
for(const auto &mapping : qAsConst(grp.typeMapping))
data.insert(mapping.key, mapping.type);
return hasNext;
}
void SettingsGenerator::read_included_file(QXmlStreamReader &reader, NodeContentGroup &data)
{
ImportType import;
read_ImportType(reader, import);
//make the path relative if possbile
if(dynamic_cast<QFileDevice*>(reader.device())) {
QFileInfo docInfo{static_cast<QFileDevice*>(reader.device())->fileName()};
import.importPath = docInfo.dir().absoluteFilePath(import.importPath);
}
// read the document
try {
QFile xmlFile{import.importPath};
if(!xmlFile.open(QIODevice::ReadOnly | QIODevice::Text))
throw FileException{xmlFile};
QXmlStreamReader subReader{&xmlFile};
if(!subReader.readNextStartElement())
throw XmlException{subReader};
SettingsType settings;
if(subReader.name() == QStringLiteral("Settings")) {
read_SettingsType(subReader, settings);
} else if(subReader.name() == QStringLiteral("SettingsConfig")) {
SettingsTranslator confReader;
SettingsConfigBase::SettingsConfigType settingsConf;
confReader.read_SettingsConfigType(subReader, settingsConf);
convertFromConf(reader, settingsConf, settings);
} else
throwChild(subReader);
NodeContentGroup *cGrp = &settings;
if(import.rootNode) {
for(const auto &key : import.rootNode.value().split(QLatin1Char('/'), QString::SkipEmptyParts)) {
cGrp = findContentGroup(cGrp, key);
if(!cGrp)
return;
}
}
data = std::move(*cGrp);
} catch(FileException &e) {
if(import.required)
throw;
else {
qWarning() << e.what();
return;
}
}
}
void SettingsGenerator::convertFromConf(QXmlStreamReader &reader, SettingsConfigBase::SettingsConfigType &conf, SettingsType &data)
{
for(auto &element : conf.content) {
if(nonstd::holds_alternative<SettingsConfigBase::CategoryType>(element))
readCategory(reader, nonstd::get<SettingsConfigBase::CategoryType>(element), data);
else if(nonstd::holds_alternative<SettingsConfigBase::SectionType>(element))
readSection(reader, nonstd::get<SettingsConfigBase::SectionType>(element), data);
else if(nonstd::holds_alternative<SettingsConfigBase::GroupType>(element))
readGroup(reader, nonstd::get<SettingsConfigBase::GroupType>(element), data);
else if(nonstd::holds_alternative<SettingsConfigBase::EntryType>(element))
readEntry(reader, nonstd::get<SettingsConfigBase::EntryType>(element), data);
else
throw XmlException{reader, QStringLiteral("Unexpected child element in included SettingsConf")};
}
}
void SettingsGenerator::readCategory(QXmlStreamReader &reader, SettingsConfigBase::CategoryContentGroup &content, NodeContentGroup &targetRootNode)
{
for(auto &element : content.content) {
if(nonstd::holds_alternative<SettingsConfigBase::SectionType>(element))
readSection(reader, nonstd::get<SettingsConfigBase::SectionType>(element), targetRootNode);
else if(nonstd::holds_alternative<SettingsConfigBase::GroupType>(element))
readGroup(reader, nonstd::get<SettingsConfigBase::GroupType>(element), targetRootNode);
else if(nonstd::holds_alternative<SettingsConfigBase::EntryType>(element))
readEntry(reader, nonstd::get<SettingsConfigBase::EntryType>(element), targetRootNode);
else
throw XmlException{reader, QStringLiteral("Unexpected child element in included SettingsConf Categoy")};
}
}
void SettingsGenerator::readSection(QXmlStreamReader &reader, SettingsConfigBase::SectionContentGroup &content, NodeContentGroup &targetRootNode)
{
for(auto &element : content.content) {
if(nonstd::holds_alternative<SettingsConfigBase::GroupType>(element))
readGroup(reader, nonstd::get<SettingsConfigBase::GroupType>(element), targetRootNode);
else if(nonstd::holds_alternative<SettingsConfigBase::EntryType>(element))
readEntry(reader, nonstd::get<SettingsConfigBase::EntryType>(element), targetRootNode);
else
throw XmlException{reader, QStringLiteral("Unexpected child element in included SettingsConf Section")};
}
}
void SettingsGenerator::readGroup(QXmlStreamReader &reader, SettingsConfigBase::GroupContentGroup &content, NodeContentGroup &targetRootNode)
{
for(auto &element : content.content) {
if(nonstd::holds_alternative<SettingsConfigBase::EntryType>(element))
readEntry(reader, nonstd::get<SettingsConfigBase::EntryType>(element), targetRootNode);
else
throw XmlException{reader, QStringLiteral("Unexpected child element in included SettingsConf Group")};
}
}
void SettingsGenerator::readEntry(QXmlStreamReader &reader, SettingsConfigBase::EntryType &entry, NodeContentGroup &targetRootNode)
{
auto keyChain = entry.key.split(QLatin1Char('/'), QString::SkipEmptyParts);
auto entryKey = keyChain.takeLast();
auto cGrp = &targetRootNode;
for(const auto &key : keyChain) {
auto nGrp = findContentGroup(cGrp, key);
if(!nGrp) {
NodeType nNode;
nNode.key = key;
cGrp->contentNodes.append(std::move(nNode));
nGrp = &(std::get<NodeType>(cGrp->contentNodes.last()));
}
cGrp = nGrp;
}
auto isEntry = false;
auto eGrp = findContentGroup(cGrp, entryKey, &isEntry);
if(!eGrp) {
EntryType nEntry;
nEntry.key = entryKey;
cGrp->contentNodes.append(std::move(nEntry));
eGrp = &(std::get<EntryType>(cGrp->contentNodes.last()));
} else if(!isEntry) {
EntryType nEntry;
nEntry.key = entryKey;
nEntry.contentNodes = std::move(eGrp->contentNodes);
eGrp = replaceNodeByEntry(cGrp, eGrp, std::move(nEntry));
Q_ASSERT(eGrp);
} else
throw XmlException{reader, QStringLiteral("Found duplicated entry with key: %1").arg(entry.key)};
auto nEntry = static_cast<EntryType*>(eGrp);
nEntry->type = std::move(entry.type);
nEntry->defaultValue = std::move(entry.defaultValue);
nEntry->tr = std::move(entry.trdefault);
}
SettingsGeneratorBase::NodeContentGroup *SettingsGenerator::findContentGroup(SettingsGeneratorBase::NodeContentGroup *cGrp, const QString &key, bool *isEntry)
{
if(isEntry)
*isEntry = false;
for(auto &cNode : cGrp->contentNodes) {
if(nonstd::holds_alternative<NodeType>(cNode)) {
if(std::get<NodeType>(cNode).key == key)
return &(std::get<NodeType>(cNode));
} else if(nonstd::holds_alternative<EntryType>(cNode)) {
if(std::get<EntryType>(cNode).key == key) {
if(isEntry)
*isEntry = true;
return &(std::get<EntryType>(cNode));
}
} else if(nonstd::holds_alternative<NodeContentGroup>(cNode)) {
auto res = findContentGroup(&(std::get<NodeContentGroup>(cNode)), key);
if(res)
return res;
}
}
return nullptr;
}
SettingsGeneratorBase::NodeContentGroup *SettingsGenerator::replaceNodeByEntry(SettingsGeneratorBase::NodeContentGroup *cGrp, NodeContentGroup *node, SettingsGeneratorBase::EntryType &&entry)
{
for(auto &cNode : cGrp->contentNodes) {
if(nonstd::holds_alternative<NodeType>(cNode)) {
if(&std::get<NodeType>(cNode) == node) {
cNode = std::move(entry);
return &(std::get<EntryType>(cNode));
}
} else if(nonstd::holds_alternative<NodeContentGroup>(cNode)) {
auto res = replaceNodeByEntry(&(std::get<NodeContentGroup>(cNode)), node, std::move(entry));
if(res)
return res;
}
}
return nullptr;
}
void SettingsGenerator::writeHeader(const SettingsType &settings)
{
QString incGuard = QFileInfo{_hdrFile.fileName()}
.completeBaseName()
.replace(QLatin1Char('.'), QLatin1Char('_'))
.toUpper() + QStringLiteral("_H");
_hdr << "#ifndef " << incGuard << '\n'
<< "#define " << incGuard << "\n\n";
// write the includes
auto includes = QList<IncludeType> {
{false, QStringLiteral("QtCore/QObject")},
{false, QStringLiteral("QtMvvmCore/ISettingsAccessor")},
{false, QStringLiteral("QtMvvmCore/SettingsEntry")}
} + settings.includes;
for(const auto &inc : includes) {
if(inc.local)
_hdr << "#include \"" << inc.includePath << "\"\n";
else
_hdr << "#include <" << inc.includePath << ">\n";
}
_hdr << "\n";
// create the class
_hdr << "class " << QString{settings.prefix ? settings.prefix.value() + QLatin1Char(' ') + settings.name.value() : settings.name.value()} << " : public QObject\n"
<< "{\n"
<< "\tQ_OBJECT\n\n"
<< "\tQ_PROPERTY(QtMvvm::ISettingsAccessor *accessor READ accessor CONSTANT FINAL)\n\n"
<< "public:\n"
<< "\tQ_INVOKABLE explicit " << settings.name.value() << "(QObject *parent = nullptr);\n"
<< "\texplicit " << settings.name.value() << "(QtMvvm::ISettingsAccessor *accessor, QObject *parent);\n\n"
<< "\tstatic " << settings.name.value() << " *instance();\n\n"
<< "\tQtMvvm::ISettingsAccessor *accessor() const;\n\n";
writeNodeElements(settings);
_hdr << "\nprivate:\n"
<< "\tQtMvvm::ISettingsAccessor *_accessor;\n"
<< "};\n\n"
<< "#endif //" << incGuard << '\n';
}
void SettingsGenerator::writeNodeElements(const NodeContentGroup &node, int intendent)
{
for(const auto &cNode : node.contentNodes) {
if(nonstd::holds_alternative<NodeType>(cNode))
writeNode(nonstd::get<NodeType>(cNode), intendent);
else if(nonstd::holds_alternative<EntryType>(cNode))
writeEntry(nonstd::get<EntryType>(cNode), intendent);
else if(nonstd::holds_alternative<NodeContentGroup>(cNode))
writeNodeElements(nonstd::get<NodeContentGroup>(cNode), intendent);
}
}
void SettingsGenerator::writeNode(const NodeType &node, int intendent)
{
_hdr << TABS << "struct {\n";
writeNodeElements(node, intendent + 1);
_hdr << TABS << "} " << node.key << ";\n";
}
void SettingsGenerator::writeEntry(const EntryType &entry, int intendent)
{
_hdr << TABS << "struct : QtMvvm::SettingsEntry<" << entry.type << "> {\n";
writeNodeElements(entry, intendent + 1);
_hdr << TABS << "} " << entry.key << ";\n";
}
void SettingsGenerator::writeSource(const SettingsType &settings)
{
_src << "#include \"" << _hdrFile.fileName() << "\"\n\n";
_src << settings.name.value() << "::" << settings.name.value() << "(QObject *parent) : \n"
<< "\t" << settings.name.value() << "{nullptr, parent}\n"
<< "{}\n\n";
_src << settings.name.value() << "::" << settings.name.value() << "(QtMvvm::ISettingsAccessor *accessor, QObject *parent) : \n"
<< "\tQObject{parent},\n"
<< "\t_accessor{accessor}\n"
<< "{}\n\n";
_src << settings.name.value() << " *" << settings.name.value() << "::instance()\n"
<< "{\n"
<< "\treturn nullptr;\n"
<< "}\n\n";
_src << "QtMvvm::ISettingsAccessor *" << settings.name.value() << "::accessor() const\n"
<< "{\n"
<< "\treturn _accessor;\n"
<< "}\n\n";
}