Package org.apache.pdfbox.pdmodel.graphics.blend

Class BlendComposite

  • All Implemented Interfaces:
    java.awt.Composite
    public final class BlendComposite
extends java.lang.Object
implements java.awt.Composite
    AWT composite for blend modes.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      private BlendMode blendMode  
      private float constantAlpha  
      private static org.apache.commons.logging.Log LOG
      Log instance.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private BlendComposite​(BlendMode blendMode, float constantAlpha)  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.awt.CompositeContext createContext​(java.awt.image.ColorModel srcColorModel, java.awt.image.ColorModel dstColorModel, java.awt.RenderingHints hints)  
      static java.awt.Composite getInstance​(BlendMode blendMode, float constantAlpha)
      Creates a blend composite

      • Methods inherited from class java.lang.Object

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

    • Field Detail

      • LOG

        private static final org.apache.commons.logging.Log LOG
        Log instance.

      • blendMode

        private final BlendMode blendMode

      • constantAlpha

        private final float constantAlpha

    • Constructor Detail

      • BlendComposite

        private BlendComposite​(BlendMode blendMode,
                       float constantAlpha)

    • Method Detail

      • getInstance

        public static java.awt.Composite getInstance​(BlendMode blendMode,
                                             float constantAlpha)
        Creates a blend composite
        Parameters:
        blendMode - Desired blend mode
        constantAlpha - Constant alpha, must be in the inclusive range [0.0...1.0] or it will be clipped.
        Returns:
        a blend composite.
        Throws:
        java.lang.IllegalArgumentException - if blendMode is null.

      • createContext

        public java.awt.CompositeContext createContext​(java.awt.image.ColorModel srcColorModel,
                                               java.awt.image.ColorModel dstColorModel,
                                               java.awt.RenderingHints hints)
        Specified by:
        createContext in interface java.awt.Composite