fenix
/
PDF4QT
mirror of https://github.com/JakubMelka/PDF4QT.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Issue #107: Bugfixing

This commit is contained in:
Jakub Melka 2023-11-17 16:07:50 +01:00
parent 805c967b70
commit 47f0bffeca
3 changed files with 22 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Pdf4QtLib/sources/pdfdocumentbuilder.cpp
View File

@ -1026,7 +1026,7 @@ void PDFPageContentStreamBuilder::replaceResources(PDFObjectReference contentStr
QByteArray compressedData = PDFFlateDecodeFilter::compress(decodedStream);
PDFDictionary updatedDictionary = *contentStreamObject.getStream()->getDictionary();
updatedDictionary.setEntry(PDFInplaceOrMemoryString("Length"), PDFObject::createInteger(compressedData.size()));
updatedDictionary.setEntry(PDFInplaceOrMemoryString("Filters"), PDFObject::createArray(std::make_shared<PDFArray>(qMove(array))));
updatedDictionary.setEntry(PDFInplaceOrMemoryString("Filter"), PDFObject::createArray(std::make_shared<PDFArray>(qMove(array))));
PDFObject newContentStream = PDFObject::createStream(std::make_shared<PDFStream>(qMove(updatedDictionary), qMove(compressedData)));
m_documentBuilder->setObject(contentStreamReference, std::move(newContentStream));
}

2
Pdf4QtLib/sources/pdfutils.h
View File

@ -190,7 +190,7 @@ private:
};
/// Bit writer
class PDFBitWriter
class PDF4QTLIBSHARED_EXPORT PDFBitWriter
{
public:
using Value = uint64_t;

28
Pdf4QtViewer/pdfcreatebitonaldocumentdialog.cpp
View File

@ -26,6 +26,7 @@
#include "pdfwidgetutils.h"
#include "pdfimageconversion.h"
#include "pdfstreamfilters.h"
#include "pdfutils.h"
#include <QCheckBox>
#include <QPushButton>
@ -240,6 +241,8 @@ PDFCreateBitonalDocumentDialog::PDFCreateBitonalDocumentDialog(const pdf::PDFDoc
ui->imageListWidget->setItemDelegate( new ImagePreviewDelegate(&m_imagesToBeConverted, this));
setGeometry(parent->geometry());
loadImages();
updatePreview();
}
@ -312,7 +315,22 @@ void PDFCreateBitonalDocumentDialog::createBitonalDocument()
QImage bitonicImage = imageConversion.getConvertedImage();
Q_ASSERT(bitonicImage.format() == QImage::Format_Mono);
QByteArray imageData((const char*)bitonicImage.constBits(), bitonicImage.sizeInBytes());
pdf::PDFBitWriter bitWriter(1);
bitWriter.reserve(bitonicImage.sizeInBytes());
for (int row = 0; row < bitonicImage.height(); ++row)
{
for (int col = 0; col < bitonicImage.width(); ++col)
{
QRgb pixelValue = bitonicImage.pixel(col, row);
QRgb withoutAlphaValue = pixelValue & 0xFFFFFF;
int value = withoutAlphaValue > 0 ? 1 : 0;
bitWriter.write(value);
}
bitWriter.finishLine();
}
QByteArray imageData = bitWriter.takeByteArray();
QByteArray compressedData = pdf::PDFFlateDecodeFilter::compress(imageData);
pdf::PDFArray array;
@ -327,7 +345,7 @@ void PDFCreateBitonalDocumentDialog::createBitonalDocument()
dictionary.addEntry(pdf::PDFInplaceOrMemoryString("BitsPerComponent"), pdf::PDFObject::createInteger(1));
dictionary.addEntry(pdf::PDFInplaceOrMemoryString("Predictor"), pdf::PDFObject::createInteger(1));
dictionary.setEntry(pdf::PDFInplaceOrMemoryString("Length"), pdf::PDFObject::createInteger(compressedData.size()));
dictionary.setEntry(pdf::PDFInplaceOrMemoryString("Filters"), pdf::PDFObject::createArray(std::make_shared<pdf::PDFArray>(qMove(array))));
dictionary.setEntry(pdf::PDFInplaceOrMemoryString("Filter"), pdf::PDFObject::createArray(std::make_shared<pdf::PDFArray>(qMove(array))));
pdf::PDFObject imageObject = pdf::PDFObject::createStream(std::make_shared<pdf::PDFStream>(qMove(dictionary), qMove(compressedData)));
storage.setObject(reference, std::move(imageObject));
@ -363,14 +381,8 @@ void PDFCreateBitonalDocumentDialog::loadImages()
ui->imageListWidget->setIconSize(iconSize);
QSize imageSize = iconSize * ui->imageListWidget->devicePixelRatioF();
int i = 0;
for (pdf::PDFObjectReference reference : m_imageReferences)
{
if (i++>1)
{
break;
}
std::optional<pdf::PDFImage> pdfImage = getImageFromReference(reference);
if (!pdfImage)
{