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//========================================================================
//
// AnnotStampImageHelper.h
//
// Copyright (C) 2021 Mahmoud Ahmed Khalil <mahmoudkhalil11@gmail.com>
// Copyright (C) 2021 Albert Astals Cid <aacid@kde.org>
//
// Licensed under GPLv2 or later
//
//========================================================================
#ifndef ANNOTSTAMPIMAGEHELPER_H
#define ANNOTSTAMPIMAGEHELPER_H
#include "Object.h"
class PDFDoc;
enum ColorSpace
{
DeviceGray,
DeviceRGB,
DeviceCMYK
};
/**
* This class is used only to load Image XObjects into stamp annotations. It takes in
* the image parameters in its constructors and creates a new Image XObject that gets
* added to the XRef table, so that the annotations that would like to use it be able
* to get its ref number.
*
* To have transparency in the image, you should first try to create the soft
* mask of the image, by creating a AnnotStampImageHelper object giving it the soft
* image data normally. You would then need to pass in the created soft mask Image XObject
* ref to the actual image you'd like to be created by this helper class.
*/
class POPPLER_PRIVATE_EXPORT AnnotStampImageHelper
{
public:
AnnotStampImageHelper(PDFDoc *docA, int widthA, int heightA, ColorSpace colorSpace, int bitsPerComponent, char *data, int dataLength);
AnnotStampImageHelper(PDFDoc *docA, int widthA, int heightA, ColorSpace colorSpace, int bitsPerComponent, char *data, int dataLength, Ref softMaskRef);
~AnnotStampImageHelper() { }
// Returns the ref to the created Image XObject
Ref getRef() const { return ref; }
// Returns the width of the image
int getWidth() const { return width; }
// Returns the height of the image
int getHeight() const { return height; }
// Removes the created Image XObject as well as its soft mask from the XRef Table
void removeAnnotStampImageObject();
private:
void initialize(PDFDoc *docA, int widthA, int heightA, ColorSpace colorSpace, int bitsPerComponent, char *data, int dataLength);
PDFDoc *doc;
Object imgObj;
Ref ref;
Ref sMaskRef;
int width;
int height;
};
#endif
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