84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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* File: PixelToPdfWriter.cpp
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* Author: Saleem Edah-Tally - nmset@yandex.com
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* License : CeCILL-C
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* Copyright Saleem Edah-Tally - © 2025
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*
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* Created on 14 06 2025, 17:15
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*/
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#include "PixelToPdfWriter.h"
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#include <iostream>
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#include <memory>
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using namespace std;
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using namespace PoDoFo;
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PixelToPdfWriter::PixelToPdfWriter()
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{
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m_pageSizes["A0"] = PoDoFo::PdfPageSize::A0;
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m_pageSizes["A1"] = PoDoFo::PdfPageSize::A1;
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m_pageSizes["A2"] = PoDoFo::PdfPageSize::A2;
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m_pageSizes["A3"] = PoDoFo::PdfPageSize::A3;
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m_pageSizes["A4"] = PoDoFo::PdfPageSize::A4;
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m_pageSizes["A5"] = PoDoFo::PdfPageSize::A5;
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m_pageSizes["A6"] = PoDoFo::PdfPageSize::A6;
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m_pageSizes["Letter"] = PoDoFo::PdfPageSize::Letter;
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m_pageSizes["Legal"] = PoDoFo::PdfPageSize::Legal;
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m_pageSizes["Tabloid"] = PoDoFo::PdfPageSize::Tabloid;
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}
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bool PixelToPdfWriter::AddPageAt(const std::string& pixelFile, uint width, uint height, uint index,
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PoDoFo::PdfPageSize pageSize, PoDoFo::PdfColorSpace)
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{
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try
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{
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Rect pageRect = PdfPage::CreateStandardPageSize(pageSize);
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PdfPage& page = m_doc.GetPages().CreatePageAt(index, pageRect);
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PdfImageInfo info;
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info.Width = width; // Must be known beforehand and must be exact.
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info.Height = height;
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info.BitsPerComponent = 8;
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info.ColorSpace = PdfColorSpace::DeviceRGB; // Is always RGB from libinsane.
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ifstream ifs(pixelFile, ios::binary);
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string content;
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content.assign(istreambuf_iterator<char>(ifs), istreambuf_iterator<char>());
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bufferview bv(content);
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const uint pageNumber = m_doc.GetPages().GetCount();
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std::unique_ptr<PdfImage> image = m_doc.CreateImage("Page_" + to_string(pageNumber)); // No space.
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image->SetDataRaw(bv, info); // OK for pixel file, including LineArt
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double scale = std::min(pageRect.Width / image->GetWidth(), pageRect.Height / image->GetHeight());
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PdfPainter painter;
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painter.SetCanvas(page);
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painter.DrawImage(*(image), 0.0, 0.0, scale, scale);
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painter.FinishDrawing();
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}
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catch (PdfError& e)
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{
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cerr << e.ErrorMessage(e.GetCode()) << endl << e.what() << endl;
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return false;
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}
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return true;
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}
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void PixelToPdfWriter::Save(const std::string& pdfFile)
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{
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m_doc.Save(pdfFile);
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}
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uint PixelToPdfWriter::GetNumberOfPages() const
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{
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return m_doc.GetPages().GetCount();
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}
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void PixelToPdfWriter::RemovePageAt(uint index)
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{
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m_doc.GetPages().RemovePageAt(index);
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}
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