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375 lines
16 KiB
375 lines
16 KiB
#include "qmlsettingsgenerator.h"
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#include <QFileInfo>
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QmlSettingsGenerator::QmlSettingsGenerator(const QString &hdrPath, const QString &srcPath) :
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_hdrFile{hdrPath},
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_srcFile{srcPath},
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_hdr{&_hdrFile},
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_src{&_srcFile}
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{}
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void QmlSettingsGenerator::process(const QString &inPath)
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{
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// read settings and adjust defaults
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auto settings = readDocument(inPath);
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if(!settings.name)
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settings.name = QFileInfo{inPath}.baseName();
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_cppName = settings.name.value();
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settings.name.value().prepend(QStringLiteral("QMLTYPE_"));
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fixTrContext(settings, QFileInfo{inPath}.fileName());
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_name = settings.name.value();
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_prefixName = settings.prefix ? settings.prefix.value() + QLatin1Char(' ') + _name : _name;
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_typeMappings = settings.typeMappings;
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if(!_hdrFile.open(QIODevice::WriteOnly | QIODevice::Text))
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throw FileException{_hdrFile};
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writeHeader(settings, QFileInfo{inPath}.completeBaseName() + QStringLiteral(".h"));
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_hdrFile.close();
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if(!_srcFile.open(QIODevice::WriteOnly | QIODevice::Text))
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throw FileException{_srcFile};
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writeSource(settings);
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_srcFile.close();
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}
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void QmlSettingsGenerator::writeHeader(const SettingsType &settings, const QString &inHdrPath)
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{
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QString incGuard = QFileInfo{_hdrFile.fileName()}
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.completeBaseName()
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.replace(QLatin1Char('.'), QLatin1Char('_'))
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.toUpper() + QStringLiteral("_H");
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_hdr << "#ifndef " << incGuard << '\n'
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<< "#define " << incGuard << "\n\n";
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// write the includes
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const auto &hdrPath = settings.qml.has_value() ? settings.qml.value().header.value_or(inHdrPath) : inHdrPath;
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auto includes = QList<IncludeType> {
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{false, QStringLiteral("QtCore/QObject")},
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{false, QStringLiteral("QtCore/QScopedPointer")},
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{false, QStringLiteral("QtQml/QQmlListProperty")},
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{false, hdrPath}
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} + settings.includes;
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for(const auto &inc : includes) {
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if(inc.local)
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_hdr << "#include \"" << inc.includePath << "\"\n";
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else
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_hdr << "#include <" << inc.includePath << ">\n";
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}
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_hdr << "\n";
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writeListTypeBaseClass();
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// create all the qmltype classes
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auto keyList = settings.baseKey ? QStringList{settings.baseKey.value()} : QStringList{};
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int offset;
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QList<int> childOffsets;
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std::tie(offset, childOffsets) = writeNodeContentClassesDeclarations(settings, keyList);
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// create the class
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_hdr << "class " << _name << " : public QObject\n"
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<< "{\n"
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<< "\tQ_OBJECT\n\n"
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<< "\tQ_PROPERTY(QtMvvm::ISettingsAccessor *accessor READ accessor CONSTANT FINAL)\n\n";
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QList<QPair<QString, int>> childConstructs;
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QList<int> listEntries;
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writeNodeClassPropertiesDeclarations(settings, keyList, childOffsets, listEntries, childConstructs);
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_hdr << "\t" << _cppName << " *_settings;\n\n"
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<< "public:\n"
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<< "\texplicit " << _name << "(" << _cppName << " *settings, QObject *parent = nullptr) : \n"
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<< "\t\tQObject{parent},\n";
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writeMemberInits(keyList, childConstructs);
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_hdr << "\t\t_settings{settings}\n"
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<< "\t{\n";
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writeEntryPropertySignalConnects(settings, keyList, -1, listEntries);
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_hdr << "\t}\n\n"
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<< "\texplicit " << _name << "(QObject *parent = nullptr) :\n"
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<< "\t\t" << _name << "{" << _cppName << "::instance(), parent}\n"
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<< "\t{}\n\n"
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<< "\tQtMvvm::ISettingsAccessor *accessor() const { return _settings->accessor(); }\n"
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<< "\t" << _cppName << " *settings() const { return _settings; }\n"
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<< "};\n\n"
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<< "#endif //" << incGuard << '\n';
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}
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void QmlSettingsGenerator::writeListTypeBaseClass()
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{
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// write the generic variant
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_hdr << "template <typename T>\n"
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<< "class " << _name << "_ListType : public QObject\n"
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<< "{\n"
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<< "public:\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstruct ListData {\n"
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<< "\t\tstatic_assert(std::is_base_of<" << _name << "_ListType<T>, TList>::value, \"TList must extend " << _name << "_ListType<T>\");\n"
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<< "\t\tQtMvvm::SettingsEntry<QList<T>> &entry;\n"
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<< "\t\tQList<TList*> elements;\n"
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<< "\t};\n\n"
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<< "\t" << _name << "_ListType(QObject *parent) : \n"
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<< "\t\tQObject{parent}\n"
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<< "\t{}\n"
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<< "\tT value() const { return _entry ? _entry->getAt(_index) : _buffer; }\n"
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<< "\tvoid setValue(const T &value) { if(_entry) _entry->setAt(_index, value); else { _index = -2; _buffer = value; } }\n\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstatic void adjust(ListData<TList> *data, QObject *parent, int size) {\n"
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<< "\t\twhile(data->elements.size() > size)\n"
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<< "\t\t\tdata->elements.takeLast()->deleteLater();\n"
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<< "\t\tfor(auto index = data->elements.size(); index < size; index++) {\n"
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<< "\t\t\tauto elem = new TList{parent};\n"
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<< "\t\t\telem->_index = index;\n"
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<< "\t\t\telem->_entry = &data->entry;\n"
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<< "\t\t\tdata->elements.append(elem);\n"
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<< "\t\t\tdata->entry.addChangeCallback(elem, [index, elem](int i, const T &d) {\n"
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<< "\t\t\t\tif(i == index)\n"
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<< "\t\t\t\t\temit elem->valueChanged(d);\n"
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<< "\t\t\t});\n"
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<< "\t\t}\n"
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<< "\t}\n\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstatic void append(QQmlListProperty<TList> *list, TList *element) {\n"
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<< "\t\tconst auto data = reinterpret_cast<ListData<TList>*>(list->data);\n"
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<< "\t\tconst auto maxIndex = data->entry.size();\n"
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<< "\t\tadjust<TList>(data, list->object, maxIndex);\n"
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<< "\t\telement->setParent(list->object);\n"
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<< "\t\tconst auto copyDefault = element->_index == -2;\n"
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<< "\t\telement->_index = maxIndex;\n"
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<< "\t\telement->_entry = &data->entry;\n"
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<< "\t\tdata->elements.append(element);\n"
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<< "\t\tif(copyDefault)\n"
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<< "\t\t\telement->setValue(T{std::move(element->_buffer)});\n"
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<< "\t\tdata->entry.addChangeCallback(element, [maxIndex, element](int i, const T &d) {\n"
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<< "\t\t\tif(i == maxIndex)\n"
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<< "\t\t\t\temit element->valueChanged(d);\n"
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<< "\t\t});\n"
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<< "\t}\n\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstatic TList *at(QQmlListProperty<TList> *list, int index) {\n"
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<< "\t\tconst auto data = reinterpret_cast<ListData<TList>*>(list->data);\n"
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<< "\t\treturn data->elements.size() > index ? data->elements.value(index) : nullptr;\n"
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<< "\t}\n\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstatic int count(QQmlListProperty<TList> *list) {\n"
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<< "\t\treturn reinterpret_cast<ListData<TList>*>(list->data)->elements.size();\n"
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<< "\t}\n\n"
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<< "\ttemplate <typename TList>\n"
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<< "\tstatic void clear(QQmlListProperty<TList> *list) {\n"
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<< "\t\tconst auto data = reinterpret_cast<ListData<TList>*>(list->data);\n"
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<< "\t\tfor(auto elem : qAsConst(data->elements))\n"
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<< "\t\t\telem->deleteLater();\n"
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<< "\t\tdata->elements.clear();\n"
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<< "\t\tdata->entry.reset(false);\n"
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<< "\t}\n\n"
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<< "private:\n"
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<< "\tQtMvvm::SettingsEntry<QList<T>> *_entry = nullptr;\n"
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<< "\tint _index = -1;\n"
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<< "\tT _buffer{};\n"
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<< "};\n\n";
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}
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std::tuple<int, QList<int>> QmlSettingsGenerator::writeNodeContentClassesDeclarations(const NodeContentGroup &node, const QStringList &keyList, int offset)
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{
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QList<int> offsetList;
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for(const auto &cNode : node.contentNodes) {
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if(nonstd::holds_alternative<NodeType>(cNode)) {
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offset = writeNodeClassDeclaration(nonstd::get<NodeType>(cNode), keyList, offset);
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offsetList.append(offset - 1);
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} else if(nonstd::holds_alternative<EntryType>(cNode)) {
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if(!nonstd::get<EntryType>(cNode).contentNodes.isEmpty()) {
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offset = writeNodeClassDeclaration(nonstd::get<EntryType>(cNode), keyList, offset);
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offsetList.append(offset - 1);
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} else
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offsetList.append(-1);
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} else if(nonstd::holds_alternative<ListEntryType>(cNode)) {
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offset = writeListEntryListClass(nonstd::get<ListEntryType>(cNode), offset);
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offsetList.append(offset - 1); //double offset!!!
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if(!nonstd::get<ListEntryType>(cNode).contentNodes.isEmpty()) {
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offset = writeNodeClassDeclaration(nonstd::get<ListEntryType>(cNode), keyList, offset);
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offsetList.append(offset - 1);
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} else
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offsetList.append(-1);
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} else if(nonstd::holds_alternative<NodeContentGroup>(cNode)) {
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QList<int> subList;
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std::tie(offset, subList) = writeNodeContentClassesDeclarations(nonstd::get<NodeContentGroup>(cNode), keyList, offset);
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offsetList.append(subList);
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} else
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Q_UNREACHABLE();
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}
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return std::make_tuple(offset, offsetList);
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}
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int QmlSettingsGenerator::writeNodeClassDeclaration(const NodeType &node, QStringList keyList, int offset)
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{
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keyList.append(node.key);
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QList<int> childOffsets;
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std::tie(offset, childOffsets) = writeNodeContentClassesDeclarations(node, keyList, offset);
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_hdr << "class " << _name << "_" << offset << " : public QObject // " << node.key << "\n"
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<< "{\n"
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<< "\tQ_OBJECT\n\n";
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QList<QPair<QString, int>> childConstructs;
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QList<int> listEntries;
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writeNodeClassPropertiesDeclarations(node, keyList, childOffsets, listEntries, childConstructs);
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_hdr << "\t" << _cppName << " *_settings;\n\n"
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<< "public:\n"
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<< "\t" << _name << "_" << offset << "(" << _cppName << " *settings, QObject *parent) : \n"
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<< "\t\tQObject{parent},\n";
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writeMemberInits(keyList, childConstructs);
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_hdr << "\t\t_settings{settings}\n"
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<< "\t{\n";
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writeEntryPropertySignalConnects(node, keyList, offset, listEntries);
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_hdr << "\t}\n"
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<< "};\n\n";
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return ++offset;
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}
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int QmlSettingsGenerator::writeListEntryListClass(const ListEntryType &entry, int offset)
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{
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const auto &mType = _typeMappings.value(entry.type, entry.type);
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_hdr << "class " << _name << "_" << offset << " : public " << _name << "_ListType<" << mType << "> // " << entry.key << "\n"
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<< "{\n"
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<< "\tQ_OBJECT\n\n"
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<< "\tQ_PROPERTY(" << mType << " value READ value WRITE setValue NOTIFY valueChanged)\n\n"
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<< "public:\n"
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<< "\texplicit " << _name << "_" << offset << "(QObject *parent = nullptr) : \n"
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<< "\t\t" << _name << "_ListType{parent}\n"
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<< "\t{}\n\n"
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<< "Q_SIGNALS:\n"
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<< "\tvoid valueChanged(const " << mType << " &value);\n"
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<< "};\n\n";
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return ++offset;
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}
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void QmlSettingsGenerator::writeNodeClassPropertiesDeclarations(const NodeContentGroup &node, const QStringList &keyList, QList<int> &childOffsets, QList<int> &listEntries, QList<QPair<QString, int>> &childConstructs)
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{
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for(const auto &cNode : node.contentNodes) {
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if(nonstd::holds_alternative<NodeType>(cNode))
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writeNodePropertyDeclaration(nonstd::get<NodeType>(cNode), childOffsets.takeFirst(), childConstructs);
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else if(nonstd::holds_alternative<EntryType>(cNode))
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writeEntryPropertyDeclaration(nonstd::get<EntryType>(cNode), keyList, childOffsets.takeFirst(), childConstructs);
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else if(nonstd::holds_alternative<ListEntryType>(cNode)) {
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auto lIndex = childOffsets.takeFirst(); //done seperately because of undefine param call order
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writeListEntryPropertyDeclaration(nonstd::get<ListEntryType>(cNode), keyList, lIndex, childOffsets.takeFirst(), childConstructs);
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listEntries.append(lIndex);
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} else if(nonstd::holds_alternative<NodeContentGroup>(cNode))
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writeNodeClassPropertiesDeclarations(nonstd::get<NodeContentGroup>(cNode), keyList, childOffsets, listEntries, childConstructs);
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else
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Q_UNREACHABLE();
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}
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}
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void QmlSettingsGenerator::writeNodePropertyDeclaration(const NodeType &entry, int classIndex, QList<QPair<QString, int>> &childConstructs, const QString &overwriteName)
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{
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const auto &mName = overwriteName.isNull() ? entry.key : overwriteName;
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_hdr << "\tQ_PROPERTY(" << _name << "_" << classIndex << "* " << mName
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<< " MEMBER _" << mName << " CONSTANT)\n"
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<< "\t" << _name << "_" << classIndex << "* _" << mName << ";\n\n";
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childConstructs.append({mName, classIndex});
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}
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void QmlSettingsGenerator::writeEntryPropertyDeclaration(const EntryType &entry, QStringList keyList, int classIndex, QList<QPair<QString, int>> &childConstructs)
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{
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keyList.append(entry.key);
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const auto &mType = _typeMappings.value(entry.type, entry.type);
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if(mType != QStringLiteral("void")) {
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_hdr << "\tQ_PROPERTY(" << mType << " " << entry.key
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<< " READ get_" << entry.key
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<< " WRITE set_" << entry.key
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<< " NOTIFY " << entry.key << "_changed)\n";
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_hdr << "\t" << mType << " get_" << entry.key << "() const { return _settings->" << keyList.join(QLatin1Char('.')) << ".get(); }\n"
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<< "\tvoid set_" << entry.key << "(const " << mType << " &value) { _settings->" << keyList.join(QLatin1Char('.')) << ".set(value); }\n"
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<< "Q_SIGNALS:\n"
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<< "\tvoid " << entry.key << "_changed(const " << mType << " &value);\n"
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<< "private:\n\n";
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}
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if(!entry.contentNodes.isEmpty())
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writeNodePropertyDeclaration(entry, classIndex, childConstructs, entry.qmlGroupKey.value_or(entry.key + QStringLiteral("Group")));
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}
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void QmlSettingsGenerator::writeListEntryPropertyDeclaration(const ListEntryType &entry, QStringList keyList, int listIndex, int classIndex, QList<QPair<QString, int>> &childConstructs)
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{
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keyList.append(entry.key);
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_hdr << "\tQ_PROPERTY(QQmlListProperty<" << _name << "_" << listIndex << "> " << entry.key
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<< " READ get_" << entry.key << " CONSTANT)\n"
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<< "\t" << _name << "_" << listIndex << "::ListData<" << _name << "_" << listIndex << "> _" << entry.key << ";\n"
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<< "\tQQmlListProperty<" << _name << "_" << listIndex << "> get_" << entry.key << "() {\n"
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<< "\t\treturn {\n"
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<< "\t\t\tthis, &_" << entry.key << ",\n"
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<< "\t\t\t&" << _name << "_" << listIndex << "::append<" << _name << "_" << listIndex << ">,\n"
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<< "\t\t\t&" << _name << "_" << listIndex << "::count<" << _name << "_" << listIndex << ">,\n"
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<< "\t\t\t&" << _name << "_" << listIndex << "::at<" << _name << "_" << listIndex << ">,\n"
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<< "\t\t\t&" << _name << "_" << listIndex << "::clear<" << _name << "_" << listIndex << ">\n"
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<< "\t\t};\n"
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<< "\t}\n\n";
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childConstructs.append({entry.key, -1});
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if(!entry.contentNodes.isEmpty())
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writeNodePropertyDeclaration(entry, classIndex, childConstructs, entry.qmlGroupKey.value_or(entry.key + QStringLiteral("Group")));
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}
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void QmlSettingsGenerator::writeMemberInits(const QStringList &keyList, const QList<QPair<QString, int>> &childConstructs)
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{
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for(const auto &info : childConstructs) {
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if(info.second < 0)
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_hdr << "\t\t_" << info.first << "{settings->" << (QStringList{keyList} << info.first).join(QLatin1Char('.')) << ", {}},\n";
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else
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_hdr << "\t\t_" << info.first << "{new " << _name << "_" << info.second << "{settings, this}},\n";
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}
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}
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void QmlSettingsGenerator::writeEntryPropertySignalConnects(const NodeContentGroup &node, const QStringList &keyList, int classIndex, QList<int> &listEntries)
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{
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for(const auto &cNode : node.contentNodes) {
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if(nonstd::holds_alternative<NodeType>(cNode))
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continue; //nothing to be set
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else if(nonstd::holds_alternative<EntryType>(cNode))
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writeEntryPropertySignalConnect(nonstd::get<EntryType>(cNode), keyList, classIndex);
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else if(nonstd::holds_alternative<ListEntryType>(cNode))
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writeListEntryPropertySignalConnect(nonstd::get<ListEntryType>(cNode), keyList, listEntries);
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else if(nonstd::holds_alternative<NodeContentGroup>(cNode))
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writeEntryPropertySignalConnects(nonstd::get<NodeContentGroup>(cNode), keyList, classIndex, listEntries);
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else
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Q_UNREACHABLE();
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}
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}
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void QmlSettingsGenerator::writeEntryPropertySignalConnect(const EntryType &entry, QStringList keyList, int classIndex)
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{
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if(_typeMappings.value(entry.type, entry.type) == QStringLiteral("void"))
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return;
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keyList.append(entry.key);
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_hdr << "\t\t_settings->" << keyList.join(QLatin1Char('.'))
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<< ".addChangeCallback(this, std::bind(&" << _name;
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if(classIndex >= 0)
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_hdr << "_" << classIndex;
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_hdr << "::" << entry.key << "_changed, this, std::placeholders::_1));\n";
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}
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void QmlSettingsGenerator::writeListEntryPropertySignalConnect(const SettingsGeneratorBase::ListEntryType &entry, QStringList keyList, QList<int> &listEntries)
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{
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auto classIndex = listEntries.takeFirst();
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keyList.append(entry.key);
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_hdr << "\t\t_settings->" << keyList.join(QLatin1Char('.'))
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<< ".addSizeChangeCallback(this, std::bind(&"
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<< _name << "_" << classIndex << "::adjust<" << _name << "_" << classIndex
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<< ">, &_" << entry.key << ", this, std::placeholders::_1));\n";
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}
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void QmlSettingsGenerator::writeSource(const SettingsType &settings)
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{
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_src << "#include \"" << _hdrFile.fileName() << "\"\n\n";
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}
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