SignatureField.h

#pragma once
// Copyright (c) 2001-2024 Aspose Pty Ltd. All Rights Reserved.

// C# preprocessor directive: #if ASPOSE_PDF_DRAWING

// C# INACTIVE CODE:
// using ImageFormat = Aspose.Pdf.Drawing.ImageFormat;

// C# preprocessor directive: #else


// C# preprocessor directive: #endif


#include "Aspose.PDF.Cpp/InteractiveFeatures/Forms/Field.h"
#include "Aspose.PDF.Cpp/aspose_pdf_api_defs.h"

namespace Aspose
{
namespace Pdf
{
class Document;
namespace Engine
{
namespace Data
{
class IPdfObject;
class ITrailerable;
} // namespace Data
} // namespace Engine
namespace Facades
{
class Form;
class PdfFileSignature;
} // namespace Facades
namespace Forms
{
class Signature;
} // namespace Forms
class Page;
class Rectangle;
namespace Text
{
class Font;
} // namespace Text
class XForm;
} // namespace Pdf
} // namespace Aspose
namespace System
{
namespace Drawing
{
namespace Imaging
{
class ImageFormat;
} // namespace Imaging
} // namespace Drawing
namespace IO
{
class Stream;
} // namespace IO
namespace Security
{
namespace Cryptography
{
namespace X509Certificates
{
class X509Certificate;
} // namespace X509Certificates
} // namespace Cryptography
} // namespace Security
} // namespace System

namespace Aspose {

namespace Pdf {

namespace Forms {

class ASPOSE_PDF_SHARED_CLASS SignatureField final : public Aspose::Pdf::Forms::Field
{
    typedef SignatureField ThisType;
    typedef Aspose::Pdf::Forms::Field BaseType;
    
    typedef ::System::BaseTypesInfo<BaseType> ThisTypeBaseTypesInfo;
    ASPOSE_PDF_SHARED_RTTI_INFO_DECL();
    
    friend class Aspose::Pdf::Facades::Form;
    friend class Aspose::Pdf::Facades::PdfFileSignature;
    friend class Aspose::Pdf::Forms::Field;
    
public:

    ASPOSE_PDF_SHARED_API System::SharedPtr<Aspose::Pdf::Forms::Signature> get_Signature() const;
    
    ASPOSE_PDF_SHARED_API void Sign(System::SharedPtr<Aspose::Pdf::Forms::Signature> signature, System::SharedPtr<System::IO::Stream> pfx, System::String pass);
    
    ASPOSE_PDF_SHARED_API SignatureField(System::SharedPtr<Aspose::Pdf::Page> page, System::SharedPtr<Rectangle> rect);
    ASPOSE_PDF_SHARED_API SignatureField(System::SharedPtr<Document> doc, System::SharedPtr<Rectangle> rect);
    
    ASPOSE_PDF_SHARED_API void Sign(System::SharedPtr<Aspose::Pdf::Forms::Signature> signature);
    ASPOSE_PDF_SHARED_API System::SharedPtr<System::IO::Stream> ExtractImage();
    ASPOSE_PDF_SHARED_API System::SharedPtr<System::IO::Stream> ExtractImage(System::SharedPtr<System::Drawing::Imaging::ImageFormat> format);
    ASPOSE_PDF_SHARED_API System::SharedPtr<System::IO::Stream> ExtractCertificate();
    
protected:

    SignatureField(System::SharedPtr<Aspose::Pdf::Engine::Data::IPdfObject> annotation, System::SharedPtr<Document> document);
    
    MEMBER_FUNCTION_MAKE_OBJECT_DECLARATION(SignatureField, CODEPORTING_ARGS(System::SharedPtr<Aspose::Pdf::Engine::Data::IPdfObject> annotation, System::SharedPtr<Document> document));
    ASPOSE_PDF_SHARED_API void Initialize(System::SharedPtr<Aspose::Pdf::Engine::Data::ITrailerable> trailer) override;
    void Clear() override;
    void AddImage(System::SharedPtr<System::IO::Stream> image);
    ASPOSE_PDF_SHARED_API System::SharedPtr<Field> CreateCopy() override;
    
    virtual ASPOSE_PDF_SHARED_API ~SignatureField();
    
private:

    System::SharedPtr<Aspose::Pdf::Forms::Signature> _signature;
    
    static System::SharedPtr<System::Security::Cryptography::X509Certificates::X509Certificate> GetX509Certficate(System::ArrayPtr<uint8_t> certificateRawData);
    void AddImageToAppearance(System::SharedPtr<XForm> appearance, System::SharedPtr<System::IO::Stream> image, System::ArrayPtr<double> position);
    System::ArrayPtr<double> CalculateImagePosition(double width, double height);
    System::SharedPtr<Text::Font> GetAppropriateFont(System::SharedPtr<Aspose::Pdf::Forms::Signature> signature);
    
};

} // namespace Forms
} // namespace Pdf
} // namespace Aspose