mirror of
https://github.com/JakubMelka/PDF4QT.git
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115 lines
4.0 KiB
C++
115 lines
4.0 KiB
C++
// Copyright (C) 2024 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 PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H
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#define PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H
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#include "pdfpagecontenteditorprocessor.h"
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#include <QPaintDevice>
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namespace pdf
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{
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class PDFPageContentElement;
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class PDFContentEditorPaintEngine;
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class PDFPageContentEditorContentStreamBuilder;
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class PDF4QTLIBCORESHARED_EXPORT PDFContentEditorPaintDevice : public QPaintDevice
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{
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public:
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PDFContentEditorPaintDevice(PDFPageContentEditorContentStreamBuilder* builder, QRectF mediaRect, QRectF mediaRectMM);
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virtual ~PDFContentEditorPaintDevice() override;
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virtual int devType() const override;
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virtual QPaintEngine* paintEngine() const override;
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protected:
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virtual int metric(PaintDeviceMetric metric) const override;
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private:
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PDFContentEditorPaintEngine* m_paintEngine;
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QRectF m_mediaRect;
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QRectF m_mediaRectMM;
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};
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class PDF4QTLIBCORESHARED_EXPORT PDFPageContentEditorContentStreamBuilder
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{
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public:
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PDFPageContentEditorContentStreamBuilder(PDFDocument* document);
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void writeEditedElement(const PDFEditedPageContentElement* element);
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const QByteArray& getOutputContent() const;
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const PDFDictionary& getFontDictionary() const { return m_fontDictionary; }
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const PDFDictionary& getXObjectDictionary() const { return m_xobjectDictionary; }
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const PDFDictionary& getGraphicStateDictionary() const { return m_graphicStateDictionary; }
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void setFontDictionary(const PDFDictionary& newFontDictionary);
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const QStringList& getErrors() const { return m_errors; }
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void clearErrors() { m_errors.clear(); }
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void writeStyledPath(const QPainterPath& path,
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const QPen& pen,
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const QBrush& brush,
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bool isStroking,
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bool isFilling);
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void writeStyledPath(const QPainterPath& path,
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const PDFPageContentProcessorState& state,
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bool isStroking,
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bool isFilling);
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void writeImage(const QImage& image, const QRectF& rectangle);
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void writeImage(const QImage& image, QTransform transform, const QRectF& rectangle);
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const PDFPageContentProcessorState& getCurrentState() { return m_currentState; }
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private:
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bool isNeededToWriteCurrentTransformationMatrix() const;
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void writeCurrentTransformationMatrix(QTextStream& stream);
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void writeStateDifference(QTextStream& stream, const PDFPageContentProcessorState& state);
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void writePainterPath(QTextStream& stream,
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const QPainterPath& path,
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bool isStroking,
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bool isFilling);
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void writeText(QTextStream& stream, const QString& text);
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void writeTextCommand(QTextStream& stream, const QXmlStreamReader& reader);
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void writeImage(QTextStream& stream, const QImage& image);
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QByteArray selectFont(const QByteArray& font);
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void addError(const QString& error);
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PDFDocument* m_document = nullptr;
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PDFDictionary m_fontDictionary;
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PDFDictionary m_xobjectDictionary;
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PDFDictionary m_graphicStateDictionary;
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QByteArray m_outputContent;
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PDFPageContentProcessorState m_currentState;
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PDFFontPointer m_textFont;
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QStringList m_errors;
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};
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} // namespace pdf
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#endif // PDFPAGECONTENTEDITORCONTENTSTREAMBUILDER_H
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