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Color spaces - update according to the PDF 2.0 specification

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This commit is contained in:
Jakub Melka
2020-08-11 17:46:03 +02:00
parent c033de6917
commit 8eedb45576
3 changed files with 43 additions and 7 deletions
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11
PdfForQtLib/sources/pdfcolorspaces.h
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@@ -55,6 +55,7 @@ static constexpr const char* COLOR_SPACE_NAME_DEVICE_CMYK = "DeviceCMYK";
static constexpr const char* COLOR_SPACE_NAME_ABBREVIATION_DEVICE_GRAY = "G";
static constexpr const char* COLOR_SPACE_NAME_ABBREVIATION_DEVICE_RGB = "RGB";
static constexpr const char* COLOR_SPACE_NAME_ABBREVIATION_DEVICE_CMYK = "CMYK";
static constexpr const char* COLOR_SPACE_NAME_ABBREVIATION_CAL_CMYK = "CalCMYK";
static constexpr const char* COLOR_SPACE_NAME_DEFAULT_GRAY = "DefaultGray";
static constexpr const char* COLOR_SPACE_NAME_DEFAULT_RGB = "DefaultRGB";
@@ -542,7 +543,7 @@ public:
static constexpr const size_t MAX_COLOR_COMPONENTS = 4;
using Ranges = std::array<PDFColorComponent, MAX_COLOR_COMPONENTS * 2>;
explicit PDFICCBasedColorSpace(PDFColorSpacePointer alternateColorSpace, Ranges range, QByteArray iccProfileData);
explicit PDFICCBasedColorSpace(PDFColorSpacePointer alternateColorSpace, Ranges range, QByteArray iccProfileData, PDFObjectReference metadata);
virtual ~PDFICCBasedColorSpace() = default;
virtual QColor getDefaultColor(const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
@@ -550,6 +551,8 @@ public:
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;
PDFObjectReference getMetadata() const { return m_metadata; }
/// Creates ICC based color space from provided values.
/// \param colorSpaceDictionary Color space dictionary
/// \param document Document
@@ -567,6 +570,7 @@ private:
Ranges m_range;
QByteArray m_iccProfileData;
QByteArray m_iccProfileDataChecksum;
PDFObjectReference m_metadata;
};
class PDFIndexedColorSpace : public PDFAbstractColorSpace
@@ -615,6 +619,9 @@ public:
virtual QColor getColor(const PDFColor& color, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const override;
virtual size_t getColorComponentCount() const override;
bool isNone() const { return m_isNone; }
bool isAll() const { return m_isAll; }
/// Creates separation color space from provided values.
/// \param colorSpaceDictionary Color space dictionary
/// \param document Document
@@ -631,6 +638,8 @@ private:
QByteArray m_colorName;
PDFColorSpacePointer m_alternateColorSpace;
PDFFunctionPtr m_tintTransform;
bool m_isNone;
bool m_isAll;
};
class PDFDeviceNColorSpace : public PDFAbstractColorSpace