PdfStringStream.h

// SPDX-FileCopyrightText: 2022 Francesco Pretto <ceztko@gmail.com>
// SPDX-License-Identifier: LGPL-2.0-or-later OR MPL-2.0
 
#ifndef PDF_STRING_STREAM
#define PDF_STRING_STREAM
 
#include "PdfDeclarations.h"
#include <podofo/auxiliary/OutputStream.h>
 
namespace PoDoFo
{
    class PODOFO_API PdfStringStream final : public OutputStream
    {
    public:
        PdfStringStream();
 
        template <typename T>
        inline PdfStringStream& operator<<(T const& val)
        {
            (*m_stream) << val;
            return *this;
        }
 
        // This is needed to allow using std::endl
        PdfStringStream& operator<<(
            std::ostream& (*pfn)(std::ostream&));
 
        PdfStringStream& operator<<(float val);
 
        PdfStringStream& operator<<(double val);
 
        std::string_view GetString() const;
 
        std::string TakeString();
 
        void Clear();
 
        void SetPrecision(unsigned short value);
 
        unsigned short GetPrecision() const;
 
        unsigned GetSize() const;
 
        explicit operator std::ostream& () { return *m_stream; }
 
    protected:
        void writeBuffer(const char* buffer, size_t size);
 
    private:
        using OutputStream::Flush;
        using OutputStream::Write;
 
    private:
        charbuff m_temp;
        std::unique_ptr<std::ostream> m_stream;
    };
}
 
#endif // PDF_STRING_STREAM