mirror of
https://github.com/JakubMelka/PDF4QT.git
synced 2024-12-28 01:00:40 +01:00
455 lines
14 KiB
C++
455 lines
14 KiB
C++
// Copyright (C) 2020-2021 Jakub Melka
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//
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// This file is part of Pdf4Qt.
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//
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// Pdf4Qt is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// with the written consent of the copyright owner, any later version.
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//
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// Pdf4Qt is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Pdf4Qt. If not, see <https://www.gnu.org/licenses/>.
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#ifndef CODEGENERATOR_H
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#define CODEGENERATOR_H
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#include <QObject>
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#include <QMetaEnum>
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#include <QMetaObject>
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#include <QDomDocument>
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#include <QDomElement>
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#include <QObjectList>
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#include <QComboBox>
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namespace codegen
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{
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struct CodeGeneratorParameters
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{
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bool header = false;
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int indent = 0;
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QString className;
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bool isFirstItem = false;
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bool isLastItem = false;
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};
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class Serializer
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{
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public:
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static QObject* load(const QDomElement& element, QObject* parent);
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static void store(QObject* object, QDomElement& element);
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static QObject* clone(QObject* object, QObject* parent);
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template<typename T>
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static inline QString convertEnumToString(T enumValue)
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{
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QMetaEnum metaEnum = QMetaEnum::fromType<T>();
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Q_ASSERT(metaEnum.isValid());
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return metaEnum.valueToKey(enumValue);
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}
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template<typename T>
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static inline void convertStringToEnum(const QString enumString, T& value)
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{
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QMetaEnum metaEnum = QMetaEnum::fromType<T>();
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Q_ASSERT(metaEnum.isValid());
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bool ok = false;
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value = static_cast<T>(metaEnum.keyToValue(enumString.toLatin1().data(), &ok));
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if (!ok)
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{
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// Set default value, if something fails.
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value = T();
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}
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}
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template<typename T>
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static inline void fillComboBox(QComboBox* comboBox, T value)
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{
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QMetaEnum metaEnum = QMetaEnum::fromType<T>();
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Q_ASSERT(metaEnum.isValid());
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const int keyCount = metaEnum.keyCount();
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comboBox->setUpdatesEnabled(false);
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comboBox->clear();
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for (int i = 0; i < keyCount; ++i)
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{
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comboBox->addItem(metaEnum.key(i), metaEnum.value(i));
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}
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comboBox->setCurrentIndex(comboBox->findData(int(value)));
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comboBox->setUpdatesEnabled(true);
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}
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};
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class GeneratedFunction;
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class GeneratedCodeStorage : public QObject
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{
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Q_OBJECT
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private:
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using BaseClass = QObject;
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public:
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Q_INVOKABLE GeneratedCodeStorage(QObject* parent);
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Q_PROPERTY(QObjectList functions READ getFunctions WRITE setFunctions)
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QObjectList getFunctions() const;
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void setFunctions(const QObjectList& functions);
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GeneratedFunction* addFunction(const QString& name);
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GeneratedFunction* addFunction(GeneratedFunction* function);
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void removeFunction(GeneratedFunction* function);
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void generateCode(QTextStream& stream, CodeGeneratorParameters& parameters) const;
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private:
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QObjectList m_functions;
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};
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class GeneratedBase : public QObject
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{
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Q_OBJECT
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private:
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using BaseClass = QObject;
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public:
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using BaseClass::BaseClass;
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enum class FieldType
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{
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Name,
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ItemType,
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DataType,
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Value,
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Description
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};
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enum DataType
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{
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_void,
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_PDFNull,
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_bool,
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_PDFInteger,
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_PDFReal,
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_PDFObjectReference,
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_PDFObject,
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_PDFIntegerVector,
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_PDFObjectReferenceVector,
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_PDFFormSubmitFlags,
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_QString,
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_QPointF,
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_QRectF,
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_QColor,
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_QVariant,
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_QPolygonF,
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_QDateTime,
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_QLocale,
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_QByteArray,
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_Polygons,
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_TextAnnotationIcon,
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_LinkHighlightMode,
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_TextAlignment,
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_AnnotationLineEnding,
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_AnnotationBorderStyle,
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_FileAttachmentIcon,
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_Stamp,
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_PDFDestination,
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_PageRotation
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};
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Q_ENUM(DataType)
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Q_PROPERTY(QObjectList items READ getItems WRITE setItems)
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virtual bool hasField(FieldType fieldType) const = 0;
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virtual QVariant readField(FieldType fieldType) const = 0;
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virtual void writeField(FieldType fieldType, QVariant value) = 0;
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virtual void fillComboBox(QComboBox* comboBox, FieldType fieldType) = 0;
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virtual bool canHaveSubitems() const = 0;
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virtual QStringList getCaptions() const = 0;
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virtual GeneratedBase* appendItem() = 0;
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enum class Pass
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{
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Enter,
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Leave
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};
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void generateSourceCode(QTextStream& stream, CodeGeneratorParameters& parameters) const;
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void applyFunctor(std::function<void(const GeneratedBase*, Pass)>& functor) const;
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enum class Operation
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{
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Delete,
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MoveUp,
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MoveDown,
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NewSibling,
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NewChild
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};
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GeneratedBase* getParent() { return qobject_cast<GeneratedBase*>(parent()); }
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const GeneratedBase* getParent() const { return qobject_cast<const GeneratedBase*>(parent()); }
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bool canPerformOperation(Operation operation) const;
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void performOperation(Operation operation);
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QObjectList getItems() const;
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void setItems(const QObjectList& items);
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void addItem(QObject* object);
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void removeItem(QObject* object);
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void clearItems();
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protected:
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virtual void generateSourceCodeImpl(QTextStream& stream, CodeGeneratorParameters& parameters, Pass pass) const;
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QString getCppType(DataType type) const;
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QStringList getFormattedTextWithLayout(QString firstPrefix, QString prefix, QString text, int indent) const;
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QStringList getFormattedTextBlock(QString firstPrefix, QString prefix, QStringList texts, int indent) const;
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private:
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QObjectList m_items;
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};
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class GeneratedParameter : public GeneratedBase
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{
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Q_OBJECT
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private:
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using BaseClass = GeneratedBase;
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public:
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Q_INVOKABLE GeneratedParameter(QObject* parent);
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Q_PROPERTY(QString parameterName READ getParameterName WRITE setParameterName)
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Q_PROPERTY(DataType parameterType READ getParameterDataType WRITE setParameterDataType)
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Q_PROPERTY(QString parameterDescription READ getParameterDescription WRITE setParameterDescription)
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virtual bool hasField(FieldType fieldType) const override;
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virtual QVariant readField(FieldType fieldType) const override;
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virtual void writeField(FieldType fieldType, QVariant value) override;
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virtual void fillComboBox(QComboBox* comboBox, FieldType fieldType) override;
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virtual bool canHaveSubitems() const override;
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virtual QStringList getCaptions() const override;
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virtual GeneratedBase* appendItem() override;
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QString getParameterName() const;
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void setParameterName(const QString& parameterName);
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DataType getParameterDataType() const;
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void setParameterDataType(const DataType& parameterDataType);
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QString getParameterDescription() const;
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void setParameterDescription(const QString& parameterDescription);
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private:
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QString m_parameterName;
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DataType m_parameterDataType = _void;
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QString m_parameterDescription;
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};
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class GeneratedPDFObject : public GeneratedBase
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{
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Q_OBJECT
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private:
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using BaseClass = GeneratedBase;
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public:
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enum ObjectType
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{
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Object,
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ArraySimple,
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ArrayComplex,
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Dictionary,
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DictionaryItemSimple,
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DictionaryItemComplex
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};
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Q_ENUM(ObjectType)
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Q_INVOKABLE GeneratedPDFObject(QObject* parent);
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Q_PROPERTY(QString dictionaryItemName READ getDictionaryItemName WRITE setDictionaryItemName)
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Q_PROPERTY(ObjectType objectType READ getObjectType WRITE setObjectType)
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Q_PROPERTY(QString value READ getValue WRITE setValue)
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virtual bool hasField(FieldType fieldType) const override;
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virtual QVariant readField(FieldType fieldType) const override;
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virtual void writeField(FieldType fieldType, QVariant value) override;
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virtual void fillComboBox(QComboBox* comboBox, FieldType fieldType) override;
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virtual bool canHaveSubitems() const override;
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virtual QStringList getCaptions() const override;
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virtual GeneratedBase* appendItem() override;
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QString getValue() const;
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void setValue(const QString& value);
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ObjectType getObjectType() const;
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void setObjectType(ObjectType objectType);
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QString getDictionaryItemName() const;
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void setDictionaryItemName(const QString& dictionaryItemName);
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protected:
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virtual void generateSourceCodeImpl(QTextStream& stream, CodeGeneratorParameters& parameters, Pass pass) const override;
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private:
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QString m_dictionaryItemName;
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ObjectType m_objectType = Object;
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QString m_value;
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};
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class GeneratedAction : public GeneratedBase
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{
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Q_OBJECT
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private:
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using BaseClass = GeneratedBase;
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public:
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enum ActionType
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{
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Parameters,
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CreateObject,
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Code
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};
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Q_ENUM(ActionType)
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Q_INVOKABLE GeneratedAction(QObject* parent);
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Q_PROPERTY(ActionType actionType READ getActionType WRITE setActionType)
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Q_PROPERTY(QString variableName READ getVariableName WRITE setVariableName)
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Q_PROPERTY(DataType variableType READ getVariableType WRITE setVariableType)
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Q_PROPERTY(QString code READ getCode WRITE setCode)
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virtual bool hasField(FieldType fieldType) const override;
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virtual QVariant readField(FieldType fieldType) const override;
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virtual void writeField(FieldType fieldType, QVariant value) override;
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virtual void fillComboBox(QComboBox* comboBox, FieldType fieldType) override;
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virtual bool canHaveSubitems() const override;
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virtual QStringList getCaptions() const override;
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virtual GeneratedBase* appendItem() override;
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ActionType getActionType() const;
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void setActionType(ActionType actionType);
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QString getVariableName() const;
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void setVariableName(const QString& variableName);
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DataType getVariableType() const;
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void setVariableType(DataType variableType);
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QString getCode() const;
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void setCode(const QString& code);
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protected:
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virtual void generateSourceCodeImpl(QTextStream& stream, CodeGeneratorParameters& parameters, Pass pass) const override;
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private:
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ActionType m_actionType;
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QString m_variableName;
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DataType m_variableType = _void;
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QString m_code;
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};
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class GeneratedFunction : public GeneratedBase
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{
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Q_OBJECT
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private:
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using BaseClass = GeneratedBase;
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public:
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enum FunctionType
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{
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Structure,
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Annotations,
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ColorSpace,
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Actions,
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Forms
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};
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Q_ENUM(FunctionType)
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Q_INVOKABLE GeneratedFunction(QObject* parent);
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Q_PROPERTY(FunctionType functionType READ getFunctionType WRITE setFunctionType)
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Q_PROPERTY(QString functionName READ getFunctionName WRITE setFunctionName)
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Q_PROPERTY(QString functionDescription READ getFunctionDescription WRITE setFunctionDescription)
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Q_PROPERTY(DataType returnType READ getReturnType WRITE setReturnType)
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virtual bool hasField(FieldType fieldType) const override;
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virtual QVariant readField(FieldType fieldType) const override;
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virtual void writeField(FieldType fieldType, QVariant value) override;
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virtual void fillComboBox(QComboBox* comboBox, FieldType fieldType) override;
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virtual bool canHaveSubitems() const override;
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virtual QStringList getCaptions() const override;
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virtual GeneratedBase* appendItem() override;
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QString getFunctionTypeString() const;
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void setFunctionTypeString(const QString& string);
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FunctionType getFunctionType() const;
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void setFunctionType(const FunctionType& functionType);
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QString getFunctionName() const;
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void setFunctionName(const QString& functionName);
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QString getFunctionDescription() const;
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void setFunctionDescription(const QString& functionDescription);
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DataType getReturnType() const;
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void setReturnType(DataType returnType);
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/// Create a clone of this function
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GeneratedFunction* clone(QObject* parent);
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void generateCode(QTextStream& stream, CodeGeneratorParameters& parameters) const;
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private:
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FunctionType m_functionType = FunctionType::Annotations;
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QString m_functionName;
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QString m_functionDescription;
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DataType m_returnType = _void;
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};
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class CodeGenerator : public QObject
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{
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Q_OBJECT
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private:
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using BaseClass = QObject;
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public:
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CodeGenerator(QObject* parent = nullptr);
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void initialize();
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QObjectList getFunctions() const { return m_storage->getFunctions(); }
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GeneratedFunction* addFunction(const QString& name) { return m_storage->addFunction(name); }
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GeneratedFunction* addFunction(GeneratedFunction* function) { return m_storage->addFunction(function); }
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void removeFunction(GeneratedFunction* function) { m_storage->removeFunction(function); }
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void load(const QDomDocument& document);
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void store(QDomDocument& document);
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void generateCode(QString headerName, QString sourceName) const;
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private:
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QString generateHeader(int indent) const;
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QString generateSource(QString className, int indent) const;
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GeneratedCodeStorage* m_storage = nullptr;
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};
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} // namespace codegen
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Q_DECLARE_METATYPE(codegen::GeneratedCodeStorage*)
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Q_DECLARE_METATYPE(codegen::GeneratedFunction*)
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#endif // CODEGENERATOR_H
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