mirror of https://github.com/JakubMelka/PDF4QT.git
137 lines
4.9 KiB
C++
137 lines
4.9 KiB
C++
// Copyright (C) 2019-2021 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 PDFIMAGE_H
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#define PDFIMAGE_H
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#include "pdfobject.h"
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#include "pdfcolorspaces.h"
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#include "pdfoperationcontrol.h"
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#include <QByteArray>
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class QByteArray;
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namespace pdf
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{
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class PDFStream;
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class PDFDocument;
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class PDFObjectStorage;
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class PDFRenderErrorReporter;
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/// Alternate image object. Defines alternate image, which
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/// can be shown in some circumstances instead of main image.
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class PDFAlternateImage
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{
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public:
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explicit inline PDFAlternateImage() = default;
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/// Parses alternate image dictionary object.
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/// \param storage Object storage
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/// \param object Alternate image object
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static PDFAlternateImage parse(const PDFObjectStorage* storage, PDFObject object);
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PDFObjectReference getImage() const { return m_image; }
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PDFObjectReference getOc() const { return m_oc; }
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bool isDefaultForPrinting() const { return m_defaultForPrinting; }
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private:
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PDFObjectReference m_image;
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PDFObjectReference m_oc;
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bool m_defaultForPrinting = false;
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};
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class PDF4QTLIBSHARED_EXPORT PDFImage
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{
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public:
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/// Creates image from the content and the dictionary. If image can't be created, then exception is thrown.
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/// \param document Document
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/// \param stream Stream with image
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/// \param colorSpace Color space of the image
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/// \param isSoftMask Is it a soft mask image?
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/// \param renderingIntent Default rendering intent of the image
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/// \param errorReporter Error reporter for reporting errors (or warnings)
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static PDFImage createImage(const PDFDocument* document,
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const PDFStream* stream,
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PDFColorSpacePointer colorSpace,
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bool isSoftMask,
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RenderingIntent renderingIntent,
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PDFRenderErrorReporter* errorReporter);
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/// Returns image transformed from image data and color space
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QImage getImage(const PDFCMS* cms,
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PDFRenderErrorReporter* reporter,
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const PDFOperationControl* operationControl) const;
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/// Returns rendering intent of the image
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RenderingIntent getRenderingIntent() const { return m_renderingIntent; }
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/// Color space of image samples
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const PDFColorSpacePointer& getColorSpace() const { return m_colorSpace; }
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/// Should PDF processor perform interpolation on this image?
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bool isInterpolated() const { return m_interpolate; }
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/// Array of alternate images
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const std::vector<PDFAlternateImage>& getAlternates() const { return m_alternates; }
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/// Returns name of image, under which is referenced in resources dictionary.
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/// It was mandatory in PDF 1.0, otherwise it is optional and now it is deprecated
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/// in PDF 2.0 specification.
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const QByteArray& getName() const { return m_name; }
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/// Returns idenfitier to structural parent in structure tree
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PDFInteger getStructuralParent() const { return m_structuralParent; }
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/// Web capture content set identifier
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const QByteArray& getWebCaptureContentSetID() const { return m_webCaptureContentSetId; }
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const PDFObject& getOPI() const { return m_OPI; }
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const PDFObject& getOC() const { return m_OC; }
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const PDFObject& getMetadata() const { return m_metadata; }
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const PDFObject& getAssociatedFiles() const { return m_associatedFiles; }
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const PDFObject& getMeasure() const { return m_measure; }
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const PDFObject& getPointData() const { return m_pointData; }
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const PDFImageData& getImageData() const { return m_imageData; }
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const PDFImageData& getSoftMaskData() const { return m_softMask; }
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private:
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PDFImage() = default;
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PDFImageData m_imageData;
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PDFImageData m_softMask;
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PDFColorSpacePointer m_colorSpace;
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RenderingIntent m_renderingIntent = RenderingIntent::Perceptual;
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bool m_interpolate = false;
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std::vector<PDFAlternateImage> m_alternates;
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QByteArray m_name;
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QByteArray m_webCaptureContentSetId;
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PDFInteger m_structuralParent = 0;
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PDFObject m_OPI;
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PDFObject m_OC;
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PDFObject m_metadata;
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PDFObject m_associatedFiles;
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PDFObject m_measure;
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PDFObject m_pointData;
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};
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} // namespace pdf
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#endif // PDFIMAGE_H
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