fenix/PDF4QT
1
0
Fork 0
mirror of https://github.com/JakubMelka/PDF4QT.git synced 2025-06-05 21:59:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Advanced color spaces

Browse Source
This commit is contained in:
Jakub Melka
2019-02-16 18:26:16 +01:00
parent 648879eadf
commit 8e766376bc
7 changed files with 982 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

173
PdfForQtLib/sources/pdfrenderer.cpp
View File

@ -69,16 +69,16 @@ static constexpr const std::pair<const char*, PDFPageContentProcessor::Operator>
{ "re", PDFPageContentProcessor::Operator::Rectangle },
// Path painting: S, s, f, F, f*, B, B*, b, b*, n
{ "S", PDFPageContentProcessor::Operator::StrokePath },
{ "s", PDFPageContentProcessor::Operator::CloseAndStrokePath },
{ "f", PDFPageContentProcessor::Operator::FillPathWinding },
{ "F", PDFPageContentProcessor::Operator::FillPathWinding2 },
{ "f*", PDFPageContentProcessor::Operator::FillPathEvenOdd },
{ "B", PDFPageContentProcessor::Operator::StrokeAndFillWinding },
{ "B*", PDFPageContentProcessor::Operator::StrokeAndFillEvenOdd },
{ "b", PDFPageContentProcessor::Operator::CloseAndStrokeAndFillWinding },
{ "b*", PDFPageContentProcessor::Operator::CloseAndStrokeAndFillEvenOdd },
{ "n", PDFPageContentProcessor::Operator::ClearPath },
{ "S", PDFPageContentProcessor::Operator::PathStroke },
{ "s", PDFPageContentProcessor::Operator::PathCloseStroke },
{ "f", PDFPageContentProcessor::Operator::PathFillWinding },
{ "F", PDFPageContentProcessor::Operator::PathFillWinding2 },
{ "f*", PDFPageContentProcessor::Operator::PathFillEvenOdd },
{ "B", PDFPageContentProcessor::Operator::PathFillStrokeWinding },
{ "B*", PDFPageContentProcessor::Operator::PathFillStrokeEvenOdd },
{ "b", PDFPageContentProcessor::Operator::PathCloseFillStrokeWinding },
{ "b*", PDFPageContentProcessor::Operator::PathCloseFillStrokeEvenOdd },
{ "n", PDFPageContentProcessor::Operator::PathClear },
// Clipping paths: W, W*
{ "W", PDFPageContentProcessor::Operator::ClipWinding },
@ -221,6 +221,14 @@ QList<PDFRenderError> PDFPageContentProcessor::processContents()
return m_errorList;
}
void PDFPageContentProcessor::performPathPainting(const QPainterPath& path, bool stroke, bool fill, Qt::FillRule fillRule)
{
Q_UNUSED(path);
Q_UNUSED(stroke);
Q_UNUSED(fill);
Q_UNUSED(fillRule);
}
void PDFPageContentProcessor::processContentStream(const PDFStream* stream)
{
QByteArray content = m_document->getDecodedStream(stream);
@ -325,6 +333,61 @@ void PDFPageContentProcessor::processCommand(const QByteArray& command)
break;
}
case Operator::PathStroke:
{
operatorPathStroke();
break;
}
case Operator::PathCloseStroke:
{
operatorPathCloseStroke();
break;
}
case Operator::PathFillWinding:
case Operator::PathFillWinding2:
{
operatorPathFillWinding();
break;
}
case Operator::PathFillEvenOdd:
{
operatorPathFillEvenOdd();
break;
}
case Operator::PathFillStrokeWinding:
{
operatorPathFillStrokeWinding();
break;
}
case Operator::PathFillStrokeEvenOdd:
{
operatorPathFillStrokeEvenOdd();
break;
}
case Operator::PathCloseFillStrokeWinding:
{
operatorPathCloseFillStrokeWinding();
break;
}
case Operator::PathCloseFillStrokeEvenOdd:
{
operatorPathCloseFillStrokeEvenOdd();
break;
}
case Operator::PathClear:
{
operatorPathClear();
break;
}
case Operator::Invalid:
{
m_errorList.append(PDFRenderError(RenderErrorType::Error, PDFTranslationContext::tr("Unknown operator '%1'.").arg(QString::fromLatin1(command))));
@ -358,7 +421,7 @@ QPointF PDFPageContentProcessor::getCurrentPoint() const
template<>
PDFReal PDFPageContentProcessor::readOperand<PDFReal>(size_t index) const
{
if (m_operands.size() < index)
if (index < m_operands.size())
{
const PDFLexicalAnalyzer::Token& token = m_operands[index];
@ -421,6 +484,94 @@ void PDFPageContentProcessor::operatorRectangle(PDFReal x, PDFReal y, PDFReal wi
m_currentPath.addRect(QRectF(x, y, width, height));
}
void PDFPageContentProcessor::operatorPathStroke()
{
// Do not close the path
if (!m_currentPath.isEmpty())
{
performPathPainting(m_currentPath, true, false, Qt::WindingFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathCloseStroke()
{
// Close the path
if (!m_currentPath.isEmpty())
{
m_currentPath.closeSubpath();
performPathPainting(m_currentPath, true, false, Qt::WindingFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathFillWinding()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.setFillRule(Qt::WindingFill);
performPathPainting(m_currentPath, false, true, Qt::WindingFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathFillEvenOdd()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.setFillRule(Qt::OddEvenFill);
performPathPainting(m_currentPath, false, true, Qt::OddEvenFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathFillStrokeWinding()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.setFillRule(Qt::WindingFill);
performPathPainting(m_currentPath, true, true, Qt::WindingFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathFillStrokeEvenOdd()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.setFillRule(Qt::OddEvenFill);
performPathPainting(m_currentPath, true, true, Qt::OddEvenFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathCloseFillStrokeWinding()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.closeSubpath();
m_currentPath.setFillRule(Qt::WindingFill);
performPathPainting(m_currentPath, true, true, Qt::WindingFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathCloseFillStrokeEvenOdd()
{
if (!m_currentPath.isEmpty())
{
m_currentPath.closeSubpath();
m_currentPath.setFillRule(Qt::OddEvenFill);
performPathPainting(m_currentPath, true, true, Qt::OddEvenFill);
m_currentPath = QPainterPath();
}
}
void PDFPageContentProcessor::operatorPathClear()
{
m_currentPath = QPainterPath();
}
PDFPageContentProcessor::PDFPageContentProcessorState::PDFPageContentProcessorState() :
m_currentTransformationMatrix(),
m_fillColorSpace(),