mirror of
https://github.com/JakubMelka/PDF4QT.git
synced 2025-03-24 07:10:18 +01:00
Color transformation finishing and bugfixes
This commit is contained in:
Jakub Melka
parent
0c533e10b2
commit
a169a8c06b
@ -186,6 +186,11 @@ void PDFDeviceCMYKColorSpace::fillRGBBuffer(const std::vector<float>& colors, un
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}
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}
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bool PDFAbstractColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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return getColorSpace() == other->getColorSpace();
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}
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bool PDFAbstractColorSpace::isBlendColorSpace() const
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{
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switch (getColorSpace())
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@ -721,8 +726,12 @@ bool PDFAbstractColorSpace::transform(const PDFAbstractColorSpace* source,
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{
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const PDFColorComponent A = clip01(gray);
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const PDFColorComponent xyzColor = std::powf(A, gamma);
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Q_ASSERT(it != transformedInputColorsVector.end());
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*it++ = xyzColor;
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Q_ASSERT(it != transformedInputColorsVector.end());
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*it++ = xyzColor;
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Q_ASSERT(it != transformedInputColorsVector.end());
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*it++ = xyzColor;
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}
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Q_ASSERT(it == transformedInputColorsVector.end());
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@ -745,8 +754,11 @@ bool PDFAbstractColorSpace::transform(const PDFAbstractColorSpace* source,
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for (auto sourceIt = input.cbegin(); sourceIt != input.cend(); sourceIt = std::next(sourceIt, 3))
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{
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PDFColor3 ABC = { };
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Q_ASSERT(sourceIt != input.end());
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ABC[0] = *sourceIt;
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Q_ASSERT(sourceIt + 1 != input.end());
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ABC[1] = *std::next(sourceIt, 1);
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Q_ASSERT(sourceIt + 2 != input.end());
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ABC[2] = *std::next(sourceIt, 2);
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ABC = colorPowerByFactors(ABC, gamma);
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@ -780,6 +792,10 @@ bool PDFAbstractColorSpace::transform(const PDFAbstractColorSpace* source,
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for (auto sourceIt = input.cbegin(); sourceIt != input.cend(); sourceIt = std::next(sourceIt, 3))
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{
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Q_ASSERT(sourceIt != input.end());
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Q_ASSERT(sourceIt + 1 != input.end());
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Q_ASSERT(sourceIt + 2 != input.end());
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PDFColorComponent LStar = qBound<PDFColorComponent>(0.0, interpolate(*sourceIt, 0.0, 1.0, 0.0, 100.0), 100.0);
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PDFColorComponent aStar = qBound<PDFColorComponent>(aMin, interpolate(*std::next(sourceIt, 1), 0.0, 1.0, aMin, aMax), aMax);
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PDFColorComponent bStar = qBound<PDFColorComponent>(bMin, interpolate(*std::next(sourceIt, 2), 0.0, 1.0, bMin, bMax), bMax);
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@ -951,12 +967,16 @@ bool PDFAbstractColorSpace::transform(const PDFAbstractColorSpace* source,
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for (auto transformedOutputIt = transformedOutput.cbegin(); transformedOutputIt != transformedOutput.cend(); transformedOutputIt = std::next(transformedOutputIt, 3))
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{
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PDFColor3 XYZ = { };
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Q_ASSERT(transformedOutputIt != transformedOutput.end());
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XYZ[0] = *transformedOutputIt;
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Q_ASSERT(transformedOutputIt + 1 != transformedOutput.end());
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XYZ[1] = *std::next(transformedOutputIt, 1);
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Q_ASSERT(transformedOutputIt + 2 != transformedOutput.end());
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XYZ[2] = *std::next(transformedOutputIt, 2);
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const PDFColorComponent gray = (XYZ[0] + XYZ[1] + XYZ[2]) * 0.333333333333333;
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const PDFColorComponent grayWithGamma = std::powf(gray, gamma);
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Q_ASSERT(outputIt != output.cend());
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*outputIt++ = grayWithGamma;
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}
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Q_ASSERT(outputIt == output.cend());
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@ -1191,6 +1211,18 @@ QColor PDFXYZColorSpace::getDefaultColor(const PDFCMS* cms, RenderingIntent inte
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return getColor(color, cms, intent, reporter, true);
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}
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bool PDFXYZColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFAbstractColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFXYZColorSpace*>(other));
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const PDFXYZColorSpace* typedOther = static_cast<const PDFXYZColorSpace*>(other);
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return m_whitePoint == typedOther->getWhitePoint() && m_correctionCoefficients == typedOther->getCorrectionCoefficients();
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}
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PDFXYZColorSpace::PDFXYZColorSpace(PDFColor3 whitePoint) :
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m_whitePoint(whitePoint),
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m_correctionCoefficients()
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@ -1202,6 +1234,11 @@ PDFXYZColorSpace::PDFXYZColorSpace(PDFColor3 whitePoint) :
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m_correctionCoefficients[2] = 1.0f / mappedWhitePoint[2];
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}
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const PDFColor3& PDFXYZColorSpace::getCorrectionCoefficients() const
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{
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return m_correctionCoefficients;
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}
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PDFCalGrayColorSpace::PDFCalGrayColorSpace(PDFColor3 whitePoint, PDFColor3 blackPoint, PDFColorComponent gamma) :
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PDFXYZColorSpace(whitePoint),
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m_blackPoint(blackPoint),
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@ -1210,6 +1247,18 @@ PDFCalGrayColorSpace::PDFCalGrayColorSpace(PDFColor3 whitePoint, PDFColor3 black
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}
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bool PDFCalGrayColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFXYZColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFCalGrayColorSpace*>(other));
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const PDFCalGrayColorSpace* typedOther = static_cast<const PDFCalGrayColorSpace*>(other);
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return m_blackPoint == typedOther->getBlackPoint() && m_gamma == typedOther->getGamma();
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}
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QColor PDFCalGrayColorSpace::getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const
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{
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Q_ASSERT(color.size() == getColorComponentCount());
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@ -1279,6 +1328,18 @@ PDFCalRGBColorSpace::PDFCalRGBColorSpace(PDFColor3 whitePoint, PDFColor3 blackPo
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}
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bool PDFCalRGBColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFXYZColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFCalRGBColorSpace*>(other));
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const PDFCalRGBColorSpace* typedOther = static_cast<const PDFCalRGBColorSpace*>(other);
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return m_blackPoint == typedOther->getBlackPoint() && m_gamma == typedOther->getGamma() && m_matrix == typedOther->getMatrix();
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}
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QColor PDFCalRGBColorSpace::getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const
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{
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Q_ASSERT(color.size() == getColorComponentCount());
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@ -1379,6 +1440,20 @@ PDFLabColorSpace::PDFLabColorSpace(PDFColor3 whitePoint,
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}
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bool PDFLabColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFXYZColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFLabColorSpace*>(other));
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const PDFLabColorSpace* typedOther = static_cast<const PDFLabColorSpace*>(other);
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return m_blackPoint == typedOther->getBlackPoint() &&
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m_aMin == typedOther->getAMin() && m_aMax == typedOther->getAMax() &&
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m_bMin == typedOther->getBMin() && m_bMax == typedOther->getBMax();
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}
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QColor PDFLabColorSpace::getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const
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{
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Q_ASSERT(color.size() == getColorComponentCount());
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@ -1600,6 +1675,31 @@ void PDFICCBasedColorSpace::fillRGBBuffer(const std::vector<float>& colors, unsi
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}
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}
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bool PDFICCBasedColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFAbstractColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFICCBasedColorSpace*>(other));
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const PDFICCBasedColorSpace* typedOther = static_cast<const PDFICCBasedColorSpace*>(other);
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const PDFAbstractColorSpace* alternateColorSpace = typedOther->getAlternateColorSpace();
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if (static_cast<bool>(m_alternateColorSpace.data()) != static_cast<bool>(alternateColorSpace))
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{
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return false;
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}
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if (m_alternateColorSpace && alternateColorSpace && !m_alternateColorSpace->equals(alternateColorSpace))
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{
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return false;
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}
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return m_range == typedOther->getRange() && m_iccProfileDataChecksum == typedOther->getIccProfileDataChecksum();
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}
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PDFColorSpacePointer PDFICCBasedColorSpace::createICCBasedColorSpace(const PDFDictionary* colorSpaceDictionary,
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const PDFDocument* document,
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const PDFStream* stream,
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@ -1687,6 +1787,11 @@ const QByteArray& PDFICCBasedColorSpace::getIccProfileDataChecksum() const
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return m_iccProfileDataChecksum;
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}
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const PDFAbstractColorSpace* PDFICCBasedColorSpace::getAlternateColorSpace() const
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{
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return m_alternateColorSpace.data();
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}
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PDFIndexedColorSpace::PDFIndexedColorSpace(PDFColorSpacePointer baseColorSpace, QByteArray&& colors, int maxValue) :
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m_baseColorSpace(qMove(baseColorSpace)),
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m_colors(qMove(colors)),
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@ -1695,6 +1800,31 @@ PDFIndexedColorSpace::PDFIndexedColorSpace(PDFColorSpacePointer baseColorSpace,
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}
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bool PDFIndexedColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFAbstractColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFIndexedColorSpace*>(other));
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const PDFIndexedColorSpace* typedOther = static_cast<const PDFIndexedColorSpace*>(other);
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const PDFAbstractColorSpace* baseColorSpace = typedOther->getBaseColorSpace().data();
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if (static_cast<bool>(m_baseColorSpace.data()) != static_cast<bool>(baseColorSpace))
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{
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return false;
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}
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if (m_baseColorSpace && baseColorSpace && !m_baseColorSpace->equals(baseColorSpace))
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{
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return false;
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}
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return m_colors == typedOther->getColors() && m_maxValue == typedOther->getMaxValue();
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}
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QColor PDFIndexedColorSpace::getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
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{
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return getColor(PDFColor(0.0f), cms, intent, reporter, true);
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@ -1897,7 +2027,7 @@ std::vector<PDFColorComponent> PDFIndexedColorSpace::transformColorsToBaseColorS
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for (PDFColorComponent input : buffer)
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{
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const int colorIndex = qBound(MIN_VALUE, static_cast<int>(input), m_maxValue);
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const int byteOffset = colorIndex * colorComponentCount;
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const int byteOffset = int(colorIndex * colorComponentCount);
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// We must point into the array. Check first and last component.
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Q_ASSERT(byteOffset + colorComponentCount - 1 < m_colors.size());
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@ -1908,6 +2038,7 @@ std::vector<PDFColorComponent> PDFIndexedColorSpace::transformColorsToBaseColorS
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{
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const unsigned char value = *bytePointer++;
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const PDFColorComponent component = static_cast<PDFColorComponent>(value) / 255.0f;
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Q_ASSERT(outputIt != result.cend());
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*outputIt++ = component;
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}
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}
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@ -1916,6 +2047,16 @@ std::vector<PDFColorComponent> PDFIndexedColorSpace::transformColorsToBaseColorS
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return result;
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}
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int PDFIndexedColorSpace::getMaxValue() const
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{
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return m_maxValue;
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}
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const QByteArray& PDFIndexedColorSpace::getColors() const
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{
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return m_colors;
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}
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PDFSeparationColorSpace::PDFSeparationColorSpace(QByteArray&& colorName, PDFColorSpacePointer alternateColorSpace, PDFFunctionPtr tintTransform) :
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m_colorName(qMove(colorName)),
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m_alternateColorSpace(qMove(alternateColorSpace)),
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@ -1926,6 +2067,31 @@ PDFSeparationColorSpace::PDFSeparationColorSpace(QByteArray&& colorName, PDFColo
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}
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bool PDFSeparationColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFAbstractColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFSeparationColorSpace*>(other));
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const PDFSeparationColorSpace* typedOther = static_cast<const PDFSeparationColorSpace*>(other);
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const PDFAbstractColorSpace* alternateColorSpace = typedOther->getAlternateColorSpace().data();
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if (static_cast<bool>(m_alternateColorSpace.data()) != static_cast<bool>(alternateColorSpace))
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{
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return false;
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}
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if (m_alternateColorSpace && alternateColorSpace && !m_alternateColorSpace->equals(alternateColorSpace))
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{
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return false;
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}
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return m_colorName == typedOther->getColorName();
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}
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QColor PDFSeparationColorSpace::getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
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{
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return getColor(PDFColor(1.0f), cms, intent, reporter, true);
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@ -1993,6 +2159,8 @@ std::vector<PDFColorComponent> PDFSeparationColorSpace::transformColorsToBaseCol
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// Input value
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double tint = input;
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Q_ASSERT(outputIt + (colorComponentCount - 1) != result.cend());
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if (m_isAll)
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{
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const double inversedTint = qBound(0.0, 1.0 - tint, 1.0);
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@ -2061,6 +2229,12 @@ const unsigned char* PDFImageData::getRow(unsigned int rowIndex) const
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return data + (rowIndex * m_stride);
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}
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bool PDFPatternColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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// Compare pointers
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return this == other;
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}
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QColor PDFPatternColorSpace::getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
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{
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Q_UNUSED(cms);
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@ -2105,6 +2279,46 @@ PDFDeviceNColorSpace::PDFDeviceNColorSpace(PDFDeviceNColorSpace::Type type,
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m_isNone = std::all_of(m_colorants.cbegin(), m_colorants.cend(), [](const auto& colorant) { return colorant.name == "None"; });
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}
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bool PDFDeviceNColorSpace::equals(const PDFAbstractColorSpace* other) const
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{
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if (!PDFAbstractColorSpace::equals(other))
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{
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return false;
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}
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Q_ASSERT(dynamic_cast<const PDFDeviceNColorSpace*>(other));
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const PDFDeviceNColorSpace* typedOther = static_cast<const PDFDeviceNColorSpace*>(other);
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const PDFAbstractColorSpace* alternateColorSpace = typedOther->getAlternateColorSpace().data();
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if (static_cast<bool>(m_alternateColorSpace.data()) != static_cast<bool>(alternateColorSpace))
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{
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return false;
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}
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if (m_alternateColorSpace && alternateColorSpace && !m_alternateColorSpace->equals(alternateColorSpace))
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{
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return false;
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}
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const Colorants& colorants = typedOther->getColorants();
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if (m_colorants.size() != colorants.size())
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{
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return false;
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}
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for (size_t i = 0; i < m_colorants.size(); ++i)
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{
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if (m_colorants[i].name != colorants[i].name)
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{
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return false;
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}
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}
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return true;
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}
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QColor PDFDeviceNColorSpace::getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
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{
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PDFColor color;
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@ -196,6 +196,9 @@ public:
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template<typename... Components>
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explicit constexpr inline PDFColorComponentMatrix(Components... components) : m_values({ static_cast<PDFColorComponent>(components)... }) { }
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bool operator==(const PDFColorComponentMatrix&) const = default;
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bool operator!=(const PDFColorComponentMatrix&) const = default;
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std::array<PDFColorComponent, Rows> operator*(const std::array<PDFColorComponent, Cols>& color) const
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{
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std::array<PDFColorComponent, Rows> result = { };
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@ -274,6 +277,9 @@ public:
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/// Returns color space identification
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virtual ColorSpace getColorSpace() const = 0;
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/// Returns true, if two color spaces are equal
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virtual bool equals(const PDFAbstractColorSpace* other) const;
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/// Returns true, if this color space can be used for blending
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bool isBlendColorSpace() const;
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@ -532,7 +538,10 @@ class PDFXYZColorSpace : public PDFAbstractColorSpace
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public:
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virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
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virtual bool equals(const PDFAbstractColorSpace* other) const override;
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const PDFColor3& getWhitePoint() const { return m_whitePoint; }
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const PDFColor3& getCorrectionCoefficients() const;
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protected:
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explicit PDFXYZColorSpace(PDFColor3 whitePoint);
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@ -554,12 +563,13 @@ public:
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virtual ~PDFCalGrayColorSpace() = default;
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virtual ColorSpace getColorSpace() const override { return ColorSpace::CalGray; }
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virtual bool equals(const PDFAbstractColorSpace* other) const override;
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virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
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virtual size_t getColorComponentCount() const override;
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virtual void fillRGBBuffer(const std::vector<float>& colors,unsigned char* outputBuffer, RenderingIntent intent, const PDFCMS* cms, PDFRenderErrorReporter* reporter) const override;
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PDFColorComponent getGamma() const { return m_gamma; }
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PDFColor3 getBlackPoint() const { m_blackPoint; }
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const PDFColor3& getBlackPoint() const { return m_blackPoint; }
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/// Creates CalGray color space from provided values.
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/// \param document Document
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@ -578,6 +588,7 @@ public:
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virtual ~PDFCalRGBColorSpace() = default;
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virtual ColorSpace getColorSpace() const override { return ColorSpace::CalRGB; }
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virtual bool equals(const PDFAbstractColorSpace* other) const override;
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virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
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virtual size_t getColorComponentCount() const override;
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virtual void fillRGBBuffer(const std::vector<float>& colors,unsigned char* outputBuffer, RenderingIntent intent, const PDFCMS* cms, PDFRenderErrorReporter* reporter) const override;
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@ -604,6 +615,7 @@ public:
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virtual ~PDFLabColorSpace() = default;
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|
||||
virtual ColorSpace getColorSpace() const override { return ColorSpace::Lab; }
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
virtual void fillRGBBuffer(const std::vector<float>& colors,unsigned char* outputBuffer, RenderingIntent intent, const PDFCMS* cms, PDFRenderErrorReporter* reporter) const override;
|
||||
@ -642,6 +654,7 @@ public:
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
virtual void fillRGBBuffer(const std::vector<float>& colors, unsigned char* outputBuffer, RenderingIntent intent, const PDFCMS* cms, PDFRenderErrorReporter* reporter) const override;
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
|
||||
PDFObjectReference getMetadata() const { return m_metadata; }
|
||||
|
||||
@ -660,6 +673,7 @@ public:
|
||||
const Ranges& getRange() const;
|
||||
const QByteArray& getIccProfileData() const;
|
||||
const QByteArray& getIccProfileDataChecksum() const;
|
||||
const PDFAbstractColorSpace* getAlternateColorSpace() const;
|
||||
|
||||
private:
|
||||
PDFColorSpacePointer m_alternateColorSpace;
|
||||
@ -676,6 +690,7 @@ public:
|
||||
virtual ~PDFIndexedColorSpace() = default;
|
||||
|
||||
virtual ColorSpace getColorSpace() const override { return ColorSpace::Indexed; }
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
@ -700,6 +715,9 @@ public:
|
||||
PDFColorSpacePointer getBaseColorSpace() const;
|
||||
std::vector<PDFColorComponent> transformColorsToBaseColorSpace(const PDFColorBuffer buffer) const;
|
||||
|
||||
int getMaxValue() const;
|
||||
const QByteArray& getColors() const;
|
||||
|
||||
private:
|
||||
static constexpr const int MIN_VALUE = 0;
|
||||
static constexpr const int MAX_VALUE = 255;
|
||||
@ -716,6 +734,7 @@ public:
|
||||
virtual ~PDFSeparationColorSpace() = default;
|
||||
|
||||
virtual ColorSpace getColorSpace() const override { return ColorSpace::Separation; }
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
@ -778,6 +797,7 @@ public:
|
||||
virtual ~PDFDeviceNColorSpace() = default;
|
||||
|
||||
virtual ColorSpace getColorSpace() const override { return ColorSpace::DeviceN; }
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
@ -832,6 +852,7 @@ public:
|
||||
virtual ~PDFPatternColorSpace() override = default;
|
||||
|
||||
virtual ColorSpace getColorSpace() const override { return ColorSpace::Pattern; }
|
||||
virtual bool equals(const PDFAbstractColorSpace* other) const override;
|
||||
virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
|
||||
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter, bool isRange01) const override;
|
||||
virtual size_t getColorComponentCount() const override;
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user