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DeviceN color space

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Jakub Melka
2019-09-01 14:42:32 +02:00
parent 31eae284c2
commit 3e345a768f
5 changed files with 260 additions and 23 deletions
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56
PdfForQtLib/sources/pdfcolorspaces.h
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@ -61,6 +61,7 @@ static constexpr const char* COLOR_SPACE_NAME_LAB = "Lab";
static constexpr const char* COLOR_SPACE_NAME_ICCBASED = "ICCBased";
static constexpr const char* COLOR_SPACE_NAME_INDEXED = "Indexed";
static constexpr const char* COLOR_SPACE_NAME_SEPARATION = "Separation";
static constexpr const char* COLOR_SPACE_NAME_DEVICE_N = "DeviceN";
static constexpr const char* COLOR_SPACE_NAME_PATTERN = "Pattern";
static constexpr const char* CAL_WHITE_POINT = "WhitePoint";
@ -535,6 +536,59 @@ private:
PDFFunctionPtr m_tintTransform;
};
class PDFDeviceNColorSpace : public PDFAbstractColorSpace
{
public:
enum class Type
{
DeviceN,
NChannel
};
struct ColorantInfo
{
QByteArray name;
PDFColorSpacePointer separationColorSpace;
PDFReal solidity = 0.0;
PDFFunctionPtr dotGain;
};
using Colorants = std::vector<ColorantInfo>;
explicit PDFDeviceNColorSpace(Type type,
Colorants&& colorants,
PDFColorSpacePointer alternateColorSpace,
PDFColorSpacePointer processColorSpace,
PDFFunctionPtr tintTransform,
std::vector<QByteArray>&& colorantsPrintingOrder,
std::vector<QByteArray> processColorSpaceComponents);
virtual ~PDFDeviceNColorSpace() = default;
virtual QColor getDefaultColor() const override;
virtual QColor getColor(const PDFColor& color) const override;
virtual size_t getColorComponentCount() const override;
/// Returns type of DeviceN color space
Type getType() const { return m_type; }
/// Creates DeviceN color space from provided values.
/// \param colorSpaceDictionary Color space dictionary
/// \param document Document
/// \param array Array with DeviceN color space definition
/// \param recursion Recursion guard
static PDFColorSpacePointer createDeviceNColorSpace(const PDFDictionary* colorSpaceDictionary, const PDFDocument* document, const PDFArray* array, int recursion);
private:
Type m_type;
Colorants m_colorants;
PDFColorSpacePointer m_alternateColorSpace;
PDFColorSpacePointer m_processColorSpace;
PDFFunctionPtr m_tintTransform;
std::vector<QByteArray> m_colorantsPrintingOrder;
std::vector<QByteArray> m_processColorSpaceComponents;
};
class PDFPatternColorSpace : public PDFAbstractColorSpace
{
public:
@ -551,8 +605,6 @@ private:
std::shared_ptr<PDFPattern> m_pattern;
};
// TODO: Implement DeviceN color space
} // namespace pdf
#endif // PDFCOLORSPACES_H