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Jakub Melka
2021-09-27 19:40:46 +02:00
parent 5cdb6cdab6
commit 8508fe9ef2
3 changed files with 262 additions and 47 deletions
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54
Pdf4QtLib/sources/pdfdocumenttextflow.cpp
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@ -206,7 +206,6 @@ protected:
virtual void performOutputCharacter(const PDFTextCharacterInfo& info) override;
virtual void performMarkedContentBegin(const QByteArray& tag, const PDFObject& properties) override;
virtual void performMarkedContentEnd() override;
virtual void performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule) override;
private:
const PDFStructureItem* getStructureTreeItemFromMCID(PDFInteger mcid) const;
@ -237,32 +236,22 @@ private:
std::vector<QRectF> m_characterBoundingRects;
};
void PDFStructureTreeTextContentProcessor::performPathPainting(const QPainterPath& path, bool stroke, bool fill, bool text, Qt::FillRule fillRule)
{
if (!text)
{
// Jakub Melka: This should not occur
return;
}
if (!m_extractorOptions.testFlag(PDFStructureTreeTextExtractor::BoundingBoxes))
{
return;
}
Q_UNUSED(stroke);
Q_UNUSED(fill);
Q_UNUSED(fillRule);
QMatrix matrix = getCurrentWorldMatrix();
QPainterPath worldPath = matrix.map(path);
m_currentBoundingBox = m_currentBoundingBox.united(worldPath.controlPointRect());
m_characterBoundingRects.push_back(worldPath.controlPointRect());
}
void PDFStructureTreeTextContentProcessor::finishText()
{
m_currentText = m_currentText.trimmed();
QString trimmedText = m_currentText.trimmed();
const int index = m_currentText.indexOf(trimmedText);
Q_ASSERT(index != -1);
if (trimmedText.size() < m_currentText.size())
{
// Fix character bounding boxes...
if (m_characterBoundingRects.size() == m_currentText.size())
{
std::vector<QRectF> boundingRects(std::next(m_characterBoundingRects.cbegin(), index), std::next(m_characterBoundingRects.cbegin(), index + trimmedText.length()));
m_characterBoundingRects = std::move(boundingRects);
}
m_currentText = std::move(trimmedText);
}
if (!m_currentText.isEmpty() && (!m_extractorOptions.testFlag(PDFStructureTreeTextExtractor::SkipArtifact) || !isArtifact()))
{
if (m_extractorOptions.testFlag(PDFStructureTreeTextExtractor::AdjustReversedText) && isReversedText())
@ -276,6 +265,7 @@ void PDFStructureTreeTextContentProcessor::finishText()
m_currentText = qMove(reversed);
std::reverse(m_characterBoundingRects.begin(), m_characterBoundingRects.end());
}
Q_ASSERT(m_currentText.size() == m_characterBoundingRects.size() || m_characterBoundingRects.empty());
m_textSequence.emplace_back(PDFStructureTreeTextItem::createText(std::move(m_currentText), m_pageIndex, m_currentBoundingBox, std::move(m_characterBoundingRects)));
}
m_currentText = QString();
@ -381,8 +371,6 @@ bool PDFStructureTreeTextContentProcessor::isContentKindSuppressed(ContentKind k
switch (kind)
{
case ContentKind::Text:
return !m_extractorOptions.testFlag(PDFStructureTreeTextExtractor::BoundingBoxes);
case ContentKind::Shapes:
case ContentKind::Images:
case ContentKind::Shading:
@ -408,6 +396,18 @@ void PDFStructureTreeTextContentProcessor::performOutputCharacter(const PDFTextC
if (!info.character.isNull() && info.character != QChar(QChar::SoftHyphen))
{
m_currentText.push_back(info.character);
QPainterPath worldPath = info.matrix.map(info.outline);
if (!worldPath.isEmpty())
{
QRectF boundingRect = worldPath.controlPointRect();
m_currentBoundingBox = m_currentBoundingBox.united(boundingRect);
m_characterBoundingRects.push_back(boundingRect);
}
else
{
m_characterBoundingRects.push_back(QRectF());
}
}
}
}