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

Ink management in output preview

Browse Source
This commit is contained in:
Jakub Melka
2021-02-14 18:38:53 +01:00
parent 9da1efe4ef
commit e63d5aa242
5 changed files with 483 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

35
Pdf4QtLib/sources/pdftransparencyrenderer.h
View File

@ -97,6 +97,8 @@ public:
static constexpr PDFPixelFormat removeSpotColors(PDFPixelFormat format) { return PDFPixelFormat(format.getProcessColorChannelCount(), 0, format.getFlags()); }
static constexpr PDFPixelFormat removeShapeAndOpacity(PDFPixelFormat format) { return PDFPixelFormat(format.getProcessColorChannelCount(), format.getSpotColorChannelCount(), format.hasProcessColorsSubtractive() ? FLAG_PROCESS_COLORS_SUBTRACTIVE : 0); }
static constexpr uint32_t getAllColorsMask() { return 0xFFFF; }
static constexpr PDFPixelFormat createFormat(uint8_t processColors, uint8_t spotColors, bool withShapeAndOpacity, bool processColorSubtractive)
{
return PDFPixelFormat(processColors, spotColors, (withShapeAndOpacity ? FLAG_HAS_SHAPE_CHANNEL + FLAG_HAS_OPACITY_CHANNEL : 0) + (processColorSubtractive ? FLAG_PROCESS_COLORS_SUBTRACTIVE : 0));
@ -277,19 +279,28 @@ class Pdf4QtLIBSHARED_EXPORT PDFInkMapper
public:
explicit PDFInkMapper(const PDFDocument* document);
struct SpotColorInfo
struct ColorInfo
{
QByteArray name;
QString textName;
uint32_t spotColorIndex = 0; ///< Index of this spot color
uint32_t colorSpaceIndex = 0; ///< Index into DeviceN color space (index of colorant)
PDFColorSpacePointer colorSpace;
bool canBeActive = false; ///< Can spot color be activated?
bool active = false; ///< Is spot color active?
bool isSpot = true;
};
static constexpr const uint32_t MAX_COLOR_COMPONENTS = PDF_MAX_COLOR_COMPONENTS;
static constexpr const uint32_t MAX_DEVICE_COLOR_COMPONENTS = 4;
static constexpr const uint32_t MAX_SPOT_COLOR_COMPONENTS = MAX_COLOR_COMPONENTS - MAX_DEVICE_COLOR_COMPONENTS - 2;
/// Returns a vector of separations correspoding to the process colors
/// and spot colors. Only active spot colors are added. Only 1, 3 and 4
/// process colors are supported.
/// \param processColorCount Process color count
std::vector<ColorInfo> getSeparations(uint32_t processColorCount) const;
/// Scan document for spot colors and fills color info
/// \param activate Set spot colors active?
void createSpotColors(bool activate);
@ -303,7 +314,11 @@ public:
/// Returns spot color information (or nullptr, if spot color is not present)
/// \param colorName Color name
const SpotColorInfo* getSpotColor(const QByteArray& colorName) const;
const ColorInfo* getSpotColor(const QByteArray& colorName) const;
/// Activates / deactivates spot colors
/// \param active Make spot colors active?
void setSpotColorsActive(bool active);
/// Creates color mapping from source color space to the target color space.
/// If mapping cannot be created, then invalid mapping is returned. Target
@ -318,7 +333,7 @@ public:
private:
const PDFDocument* m_document;
std::vector<SpotColorInfo> m_spotColors;
std::vector<ColorInfo> m_spotColors;
size_t m_activeSpotColors = 0;
};
@ -456,13 +471,23 @@ struct PDFTransparencyRendererSettings
/// Use multithreading when painter paths are painted?
/// Multithreading is used to
MultithreadedPathSampler = 0x0002
MultithreadedPathSampler = 0x0002,
/// When using CMYK process color space, transfer spot
/// colors to the CMYK color space.
SeparationSimulation = 0x0004,
/// Use active color mask
ActiveColorMask = 0x0008
};
Q_DECLARE_FLAGS(Flags, Flag)
/// Flags
Flags flags = None;
/// Active color mask
uint32_t activeColorMask = PDFPixelFormat::getAllColorsMask();
};
/// Renders PDF pages with transparency, using 32-bit floating point precision.
@ -550,6 +575,8 @@ private:
PDFFloatBitmapWithColorSpace immediateBackdrop; ///< Immediate backdrop
PDFFloatBitmap softMask; ///< Soft mask for this group
PDFColorSpacePointer blendColorSpace;
bool filterColorsUsingMask = false;
uint32_t activeColorMask = PDFPixelFormat::getAllColorsMask();
};
struct PDFTransparencyPainterState