Package com.ribs.pdf.patterns

Class PDFShadingPattern

  • All Implemented Interfaces:
    java.awt.Paint, java.awt.PaintContext, java.awt.Transparency
    Direct Known Subclasses:
    PDFAxialShading, PDFFunctionShading, PDFRadialShading
    public abstract class PDFShadingPattern
extends PDFPattern
implements java.awt.PaintContext, java.awt.Paint
    PDFShadingPattern.

    • Constructor Summary

      Constructors 
      Constructor Description
      PDFShadingPattern​(java.util.Map patternDict, java.util.Map shadingDict, PDFFile srcFile)
      Constructor - patternDict may be null if this object was created from the shading operator (sh).

    • Method Summary

      All Methods Static Methods Instance Methods Abstract Methods Concrete Methods 
      Modifier and Type Method Description
      java.awt.PaintContext createContext​(java.awt.image.ColorModel cm, java.awt.Rectangle deviceBounds, java.awt.geom.Rectangle2D userBounds, java.awt.geom.AffineTransform xform, java.awt.RenderingHints hints)
      Paint & PaintContext interfaces
      void dispose()  
      abstract void doShading​(int[] samples, int x, int y, int w, int h)
      Subclasses should implement this method to draw the shading.
      java.awt.geom.Rectangle2D getBounds()  
      java.awt.image.ColorModel getColorModel()  
      static PDFShadingPattern getInstance​(java.util.Map dict, PDFFile srcFile)
      Create an instance from a shading dictionary or a pattern dictionary.
      java.awt.Paint getPaint()
      Returns the awt Paint object which will render the pattern
      java.awt.image.Raster getRaster​(int x, int y, int w, int h)  
      int getRGBAPixel​(float[] sample_values)  
      java.awt.geom.AffineTransform getTransform()
      Returns the pattern space->default space transform
      int getTransparency()
      Alpha & color definitions
      void initializeShadingParameters​(java.util.Map shadingDict, PDFFile srcFile)
      Read the shading parameters
      void setColorSpace​(java.awt.color.ColorSpace c)  

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • PDFShadingPattern

        public PDFShadingPattern​(java.util.Map patternDict,
                         java.util.Map shadingDict,
                         PDFFile srcFile)
        Constructor - patternDict may be null if this object was created from the shading operator (sh).

    • Method Detail

      • getInstance

        public static PDFShadingPattern getInstance​(java.util.Map dict,
                                            PDFFile srcFile)
        Create an instance from a shading dictionary or a pattern dictionary.

      • initializeShadingParameters

        public void initializeShadingParameters​(java.util.Map shadingDict,
                                        PDFFile srcFile)
        Read the shading parameters

      • getTransform

        public java.awt.geom.AffineTransform getTransform()
        Description copied from class: PDFPattern
        Returns the pattern space->default space transform
        Specified by:
        getTransform in class PDFPattern

      • getBounds

        public java.awt.geom.Rectangle2D getBounds()

      • setColorSpace

        public void setColorSpace​(java.awt.color.ColorSpace c)

      • getRGBAPixel

        public int getRGBAPixel​(float[] sample_values)

      • getPaint

        public java.awt.Paint getPaint()
        Description copied from class: PDFPattern
        Returns the awt Paint object which will render the pattern
        Specified by:
        getPaint in class PDFPattern

      • createContext

        public java.awt.PaintContext createContext​(java.awt.image.ColorModel cm,
                                           java.awt.Rectangle deviceBounds,
                                           java.awt.geom.Rectangle2D userBounds,
                                           java.awt.geom.AffineTransform xform,
                                           java.awt.RenderingHints hints)
        Paint & PaintContext interfaces
        Specified by:
        createContext in interface java.awt.Paint

      • dispose

        public void dispose()
        Specified by:
        dispose in interface java.awt.PaintContext

      • getRaster

        public java.awt.image.Raster getRaster​(int x,
                                       int y,
                                       int w,
                                       int h)
        Specified by:
        getRaster in interface java.awt.PaintContext

      • getTransparency

        public int getTransparency()
        Alpha & color definitions
        Specified by:
        getTransparency in interface java.awt.Transparency

      • getColorModel

        public java.awt.image.ColorModel getColorModel()
        Specified by:
        getColorModel in interface java.awt.PaintContext

      • doShading

        public abstract void doShading​(int[] samples,
                               int x,
                               int y,
                               int w,
                               int h)
        Subclasses should implement this method to draw the shading. samples is defined to be an array of 8 bit per sample/4 samples per pixel ARGB pixels. There is no padding, so all scanlines are w integers wide.