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https://github.com/YACReader/yacreader
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78 lines
1.4 KiB
C++
78 lines
1.4 KiB
C++
#include "comic.h"
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#include "pdf_comic.h"
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#if defined USE_PDFIUM && !defined NO_PDF
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PdfiumComic::PdfiumComic()
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{
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FPDF_InitLibrary();
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}
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PdfiumComic::~PdfiumComic()
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{
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if (doc)
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{
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FPDF_CloseDocument(doc);
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}
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FPDF_DestroyLibrary();
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}
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bool PdfiumComic::openComic(const QString & path)
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{
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doc = FPDF_LoadDocument(path.toStdString().c_str(), NULL);
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if (doc)
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{
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return true;
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}
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else
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{
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qDebug() << FPDF_GetLastError();
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return false;
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}
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}
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void PdfiumComic::closeComic()
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{
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FPDF_CloseDocument(doc);
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}
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unsigned int PdfiumComic::numPages()
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{
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if (doc)
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{
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return FPDF_GetPageCount(doc);
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}
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else
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{
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return 0; //-1?
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}
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}
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QImage PdfiumComic::getPage(const int page)
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{
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QImage image;
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FPDF_PAGE pdfpage;
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FPDF_BITMAP bitmap;
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pdfpage = FPDF_LoadPage(doc, page);
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if (!pdfpage)
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{
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qDebug() << FPDF_GetLastError();
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return QImage();
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}
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//TODO: make target DPI configurable
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double width = (FPDF_GetPageWidth(pdfpage)/72)*150;
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double height = (FPDF_GetPageHeight(pdfpage)/72)*150;
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image = QImage(width, height, QImage::Format_RGB888);// QImage::Format_RGBX8888);
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image.fill(0xFFFFFFFF);
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bitmap = FPDFBitmap_CreateEx(image.width(), image.height(), FPDFBitmap_BGR, image.scanLine(0), image.bytesPerLine());
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//TODO: make render flags costumizable
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FPDF_RenderPageBitmap(bitmap, pdfpage, 0,0, image.width(), image.height(), 0, (FPDF_REVERSE_BYTE_ORDER | FPDF_LCD_TEXT));
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FPDFBitmap_Destroy(bitmap);
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FPDF_ClosePage(pdfpage);
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return image;
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}
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#endif //USE_PDFIUM
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