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Progress bar for windows taskbar button

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This commit is contained in:
Jakub Melka
2019-11-09 17:27:17 +01:00
parent eab366b90d
commit 11bdba0580
8 changed files with 207 additions and 8 deletions
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39
PdfForQtLib/sources/pdfdocumentreader.cpp
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@ -33,9 +33,10 @@
namespace pdf
{
PDFDocumentReader::PDFDocumentReader(const std::function<QString(bool*)>& getPasswordCallback) :
PDFDocumentReader::PDFDocumentReader(PDFProgress* progress, const std::function<QString(bool*)>& getPasswordCallback) :
m_result(Result::OK),
m_getPasswordCallback(getPasswordCallback)
m_getPasswordCallback(getPasswordCallback),
m_progress(progress)
{
}
@ -253,6 +254,8 @@ PDFDocument PDFDocumentReader::readFromBuffer(const QByteArray& buffer)
PDFParsingContext context(objectFetcher);
PDFObject object = getObject(&context, entry.offset, entry.reference);
progressStep();
QMutexLocker lock(&m_mutex);
objects[entry.reference.objectNumber] = PDFObjectStorage::Entry(entry.reference.generation, object);
}
@ -266,7 +269,9 @@ PDFDocument PDFDocumentReader::readFromBuffer(const QByteArray& buffer)
};
// Now, we are ready to scan all objects
progressStart(occupiedEntries.size());
std::for_each(std::execution::parallel_policy(), occupiedEntries.cbegin(), occupiedEntries.cend(), processEntry);
progressFinish();
if (m_result != Result::OK)
{
@ -351,8 +356,10 @@ PDFDocument PDFDocumentReader::readFromBuffer(const QByteArray& buffer)
// decipher object streams here. 4) must be handled in the security handler.
if (securityHandler->getMode() != EncryptionMode::None)
{
auto decryptEntry = [encryptObjectReference, &securityHandler, &objects](const PDFXRefTable::Entry& entry)
auto decryptEntry = [this, encryptObjectReference, &securityHandler, &objects](const PDFXRefTable::Entry& entry)
{
progressStep();
if (encryptObjectReference.objectNumber != 0 && encryptObjectReference == entry.reference)
{
// 2) - Encrypt dictionary
@ -362,7 +369,9 @@ PDFDocument PDFDocumentReader::readFromBuffer(const QByteArray& buffer)
objects[entry.reference.objectNumber].object = securityHandler->decryptObject(objects[entry.reference.objectNumber].object, entry.reference);
};
progressStart(occupiedEntries.size());
std::for_each(std::execution::parallel_policy(), occupiedEntries.cbegin(), occupiedEntries.cend(), decryptEntry);
progressFinish();
}
// ------------------------------------------------------------------------------------------
@ -520,4 +529,28 @@ int PDFDocumentReader::findFromEnd(const char* what, const QByteArray& byteArray
return FIND_NOT_FOUND_RESULT;
}
void PDFDocumentReader::progressStart(size_t stepCount)
{
if (m_progress)
{
m_progress->start(stepCount);
}
}
void PDFDocumentReader::progressStep()
{
if (m_progress)
{
m_progress->step();
}
}
void PDFDocumentReader::progressFinish()
{
if (m_progress)
{
m_progress->finish();
}
}
} // namespace pdf