Code generator - beginnings

CodeGenerator/codegenerator.h

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+//    Copyright (C) 2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt. If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef CODEGENERATOR_H
+#define CODEGENERATOR_H
+
+#include <QObject>
+#include <QMetaEnum>
+#include <QMetaObject>
+#include <QDomDocument>
+#include <QDomElement>
+#include <QObjectList>
+
+namespace codegen
+{
+
+class Serializer
+{
+public:
+    static QObject* load(const QDomElement& element, QObject* parent);
+    static void store(QObject* object, QDomElement& element);
+
+    template<typename T>
+    static inline QString convertEnumToString(T enumValue)
+    {
+        QMetaEnum metaEnum = QMetaEnum::fromType<T>();
+        Q_ASSERT(metaEnum.isValid());
+        return metaEnum.valueToKey(enumValue);
+    }
+
+    template<typename T>
+    static inline void convertStringToEnum(const QString enumString, T& value)
+    {
+        QMetaEnum metaEnum = QMetaEnum::fromType<T>();
+        Q_ASSERT(metaEnum.isValid());
+        bool ok = false;
+        value = static_cast<T>(metaEnum.keyToValue(enumString.toLatin1().data(), &ok));
+        if (!ok)
+        {
+            // Set default value, if something fails.
+            value = T();
+        }
+    }
+};
+
+class GeneratedFunction;
+
+class GeneratedCodeStorage : public QObject
+{
+    Q_OBJECT
+
+private:
+    using BaseClass = QObject;
+
+public:
+    Q_INVOKABLE GeneratedCodeStorage(QObject* parent);
+
+    Q_PROPERTY(QObjectList functions READ getFunctions WRITE setFunctions)
+
+    QObjectList getFunctions() const;
+    void setFunctions(const QObjectList& functions);
+
+    GeneratedFunction* addFunction(const QString& name);
+
+private:
+    QObjectList m_functions;
+};
+
+class GeneratedFunction : public QObject
+{
+    Q_OBJECT
+
+private:
+    using BaseClass = QObject;
+
+public:
+
+    enum FunctionType
+    {
+        Annotations,
+        ColorSpace
+    };
+    Q_ENUM(FunctionType)
+
+
+    Q_INVOKABLE GeneratedFunction(QObject* parent);
+
+    Q_PROPERTY(QString functionType READ getFunctionTypeString WRITE setFunctionTypeString)
+    Q_PROPERTY(QString functionName READ getFunctionName WRITE setFunctionName)
+    Q_PROPERTY(QString functionDescription READ getFunctionDescription WRITE setFunctionDescription)
+
+    QString getFunctionTypeString() const;
+    void setFunctionTypeString(const QString& string);
+
+    FunctionType getFunctionType() const;
+    void setFunctionType(const FunctionType& functionType);
+
+    QString getFunctionName() const;
+    void setFunctionName(const QString& functionName);
+
+    QString getFunctionDescription() const;
+    void setFunctionDescription(const QString& functionDescription);
+
+private:
+    FunctionType m_functionType = FunctionType::Annotations;
+    QString m_functionName;
+    QString m_functionDescription;
+};
+
+class CodeGenerator : public QObject
+{
+    Q_OBJECT
+
+private:
+    using BaseClass = QObject;
+
+public:
+    CodeGenerator(QObject* parent = nullptr);
+
+    void initialize();
+
+    GeneratedFunction* addFunction(const QString& name) { return m_storage->addFunction(name); }
+
+    void load(const QDomDocument& document);
+    void store(QDomDocument& document);
+
+private:
+    GeneratedCodeStorage* m_storage = nullptr;
+};
+
+}   // namespace codegen
+
+Q_DECLARE_METATYPE(codegen::GeneratedCodeStorage*)
+Q_DECLARE_METATYPE(codegen::GeneratedFunction*)
+
+#endif // CODEGENERATOR_H