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Adjust graphic state according to the PDF 2.0 specification

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This commit is contained in:
Jakub Melka
2020-08-09 17:10:42 +02:00
parent 8262654b0e
commit c033de6917
4 changed files with 319 additions and 51 deletions
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115
PdfForQtLib/sources/pdfpagecontentprocessor.h
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@ -48,15 +48,7 @@ class PDFLineDashPattern
{
public:
explicit inline PDFLineDashPattern() = default;
explicit inline PDFLineDashPattern(const std::vector<PDFReal>& dashArray, PDFReal dashOffset) :
m_dashArray(dashArray),
m_dashOffset(dashOffset)
{
if (m_dashArray.size() % 2 == 1)
{
m_dashArray.push_back(m_dashArray.back());
}
}
explicit PDFLineDashPattern(const std::vector<PDFReal>& dashArray, PDFReal dashOffset);
inline const std::vector<PDFReal>& getDashArray() const { return m_dashArray; }
inline void setDashArray(const std::vector<PDFReal>& dashArray) { m_dashArray = dashArray; }
@ -70,6 +62,9 @@ public:
/// Is line solid? Function returns true, if yes.
bool isSolid() const { return m_dashArray.empty(); }
/// Fix line dash pattern according to the specification
void fix();
private:
std::vector<PDFReal> m_dashArray;
PDFReal m_dashOffset = 0.0;
@ -273,45 +268,51 @@ protected:
PDFPageContentProcessorState& operator=(PDFPageContentProcessorState&&) = delete;
PDFPageContentProcessorState& operator=(const PDFPageContentProcessorState& other);
enum StateFlag : uint32_t
enum StateFlag : uint64_t
{
StateUnchanged = 0x00000000,
StateCurrentTransformationMatrix = 0x00000001,
StateStrokeColorSpace = 0x00000002,
StateFillColorSpace = 0x00000004,
StateStrokeColor = 0x00000008,
StateFillColor = 0x00000010,
StateLineWidth = 0x00000020,
StateLineCapStyle = 0x00000040,
StateLineJoinStyle = 0x00000080,
StateMitterLimit = 0x00000100,
StateLineDashPattern = 0x00000200,
StateRenderingIntentName = 0x00000400,
StateFlatness = 0x00000800,
StateSmoothness = 0x00001000,
StateTextMatrix = 0x00002000,
StateTextLineMatrix = 0x00004000,
StateTextCharacterSpacing = 0x00008000,
StateTextWordSpacing = 0x00010000,
StateTextHorizontalScaling = 0x00020000,
StateTextLeading = 0x00040000,
StateTextFont = 0x00080000,
StateTextFontSize = 0x00100000,
StateTextRenderingMode = 0x00200000,
StateTextRise = 0x00400000,
StateTextKnockout = 0x00800000,
StateAlphaStroking = 0x01000000,
StateAlphaFilling = 0x02000000,
StateBlendMode = 0x04000000,
StateRenderingIntent = 0x08000000,
StateOverprint = 0x10000000,
StateAlphaIsShape = 0x20000000,
StateStrokeAdjustment = 0x40000000,
StateSoftMask = 0x80000000,
StateAll = 0xFFFFFFFF
StateUnchanged = 0x0000000000000000,
StateCurrentTransformationMatrix = 0x0000000000000001,
StateStrokeColorSpace = 0x0000000000000002,
StateFillColorSpace = 0x0000000000000004,
StateStrokeColor = 0x0000000000000008,
StateFillColor = 0x0000000000000010,
StateLineWidth = 0x0000000000000020,
StateLineCapStyle = 0x0000000000000040,
StateLineJoinStyle = 0x0000000000000080,
StateMitterLimit = 0x0000000000000100,
StateLineDashPattern = 0x0000000000000200,
StateRenderingIntentName = 0x0000000000000400,
StateFlatness = 0x0000000000000800,
StateSmoothness = 0x0000000000001000,
StateTextMatrix = 0x0000000000002000,
StateTextLineMatrix = 0x0000000000004000,
StateTextCharacterSpacing = 0x0000000000008000,
StateTextWordSpacing = 0x0000000000010000,
StateTextHorizontalScaling = 0x0000000000020000,
StateTextLeading = 0x0000000000040000,
StateTextFont = 0x0000000000080000,
StateTextFontSize = 0x0000000000100000,
StateTextRenderingMode = 0x0000000000200000,
StateTextRise = 0x0000000000400000,
StateTextKnockout = 0x0000000000800000,
StateAlphaStroking = 0x0000000001000000,
StateAlphaFilling = 0x0000000002000000,
StateBlendMode = 0x0000000004000000,
StateRenderingIntent = 0x0000000008000000,
StateOverprint = 0x0000000010000000,
StateAlphaIsShape = 0x0000000020000000,
StateStrokeAdjustment = 0x0000000040000000,
StateSoftMask = 0x0000000080000000,
StateBlackPointCompensation = 0x0000000100000000,
StateBlackGenerationFunction = 0x0000000200000000,
StateUndercolorRemovalFunction = 0x0000000400000000,
StateTransferFunction = 0x0000000800000000,
StateHalftone = 0x0000001000000000,
StateHalftoneOrigin = 0x0000002000000000,
StateAll = 0xFFFFFFFFFFFFFFFF
};
Q_DECLARE_FLAGS(StateFlags, StateFlag)
using StateFlags = PDFFlags<StateFlag>;
const QMatrix& getCurrentTransformationMatrix() const { return m_currentTransformationMatrix; }
void setCurrentTransformationMatrix(const QMatrix& currentTransformationMatrix);
@ -418,6 +419,24 @@ protected:
const PDFDictionary* getSoftMask() const;
void setSoftMask(const PDFDictionary* softMask);
BlackPointCompensationMode getBlackPointCompensationMode() const;
void setBlackPointCompensationMode(BlackPointCompensationMode blackPointCompensationMode);
PDFObject getBlackGenerationFunction() const;
void setBlackGenerationFunction(const PDFObject& blackGenerationFunction);
PDFObject getUndercolorRemovalFunction() const;
void setUndercolorRemovalFunction(const PDFObject& undercolorRemovalFunction);
PDFObject getTransferFunction() const;
void setTransferFunction(const PDFObject& transferFunction);
PDFObject getHalftone() const;
void setHalftone(const PDFObject& halftone);
QPointF getHalftoneOrigin() const;
void setHalftoneOrigin(const QPointF& halftoneOrigin);
private:
QMatrix m_currentTransformationMatrix;
PDFColorSpacePointer m_strokeColorSpace;
@ -451,6 +470,12 @@ protected:
bool m_alphaIsShape;
bool m_strokeAdjustment;
const PDFDictionary* m_softMask;
BlackPointCompensationMode m_blackPointCompensationMode;
PDFObject m_blackGenerationFunction;
PDFObject m_undercolorRemovalFunction;
PDFObject m_transferFunction;
PDFObject m_halftone;
QPointF m_halftoneOrigin;
StateFlags m_stateFlags;
};