Editor plugin: Refactoring

Pdf4QtLibCore/sources/pdfpagecontenteditorcontentstreambuilder.h

@@ -0,0 +1,78 @@
+//    Copyright (C) 2024 Jakub Melka
+//
+//    This file is part of PDF4QT.
+//
+//    PDF4QT 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
+//    with the written consent of the copyright owner, any later version.
+//
+//    PDF4QT 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 PDF4QT. If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H
+#define PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H
+
+#include "pdfpagecontenteditorprocessor.h"
+
+namespace pdf
+{
+class PDFPageContentElement;
+
+class PDF4QTLIBCORESHARED_EXPORT PDFPageContentEditorContentStreamBuilder
+{
+public:
+    PDFPageContentEditorContentStreamBuilder(PDFDocument* document);
+
+    void writeStateDifference(QTextStream& stream, const PDFPageContentProcessorState& state);
+    void writeEditedElement(const PDFEditedPageContentElement* element);
+
+    const QByteArray& getOutputContent() const;
+
+    const PDFDictionary& getFontDictionary() const { return m_fontDictionary; }
+    const PDFDictionary& getXObjectDictionary() const { return m_xobjectDictionary; }
+    const PDFDictionary& getGraphicStateDictionary() const { return m_graphicStateDictionary; }
+
+    void setFontDictionary(const PDFDictionary& newFontDictionary);
+
+    const QStringList& getErrors() const { return m_errors; }
+    void clearErrors() { m_errors.clear(); }
+
+    void writeStyledPath(const QPainterPath& path,
+                         const QPen& pen,
+                         const QBrush& brush,
+                         bool isStroking,
+                         bool isFilling);
+
+private:
+    void writePainterPath(QTextStream& stream,
+                          const QPainterPath& path,
+                          bool isStroking,
+                          bool isFilling);
+
+    void writeText(QTextStream& stream, const QString& text);
+    void writeTextCommand(QTextStream& stream, const QXmlStreamReader& reader);
+
+    void writeImage(QTextStream& stream, const QImage& image);
+
+    QByteArray selectFont(const QByteArray& font);
+    void addError(const QString& error);
+
+    PDFDocument* m_document = nullptr;
+    PDFDictionary m_fontDictionary;
+    PDFDictionary m_xobjectDictionary;
+    PDFDictionary m_graphicStateDictionary;
+    QByteArray m_outputContent;
+    PDFPageContentProcessorState m_currentState;
+    PDFFontPointer m_textFont;
+    QStringList m_errors;
+};
+
+}   // namespace pdf
+
+#endif // PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H