Class GrayFilter

  • All Implemented Interfaces:
    java.awt.image.ImageConsumer, java.lang.Cloneable

    public class GrayFilter
    extends java.awt.image.RGBImageFilter
    An image filter that turns an image into a grayscale image. Used for icons in disabled buttons and labels.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private int alpha  
      private float brightness  
      private float contrast  
      private int origBrightness  
      private int origContrast  
      • Fields inherited from class java.awt.image.RGBImageFilter

        canFilterIndexColorModel, newmodel, origmodel
      • Fields inherited from class java.awt.image.ImageFilter

        consumer
      • Fields inherited from interface java.awt.image.ImageConsumer

        COMPLETESCANLINES, IMAGEABORTED, IMAGEERROR, RANDOMPIXELORDER, SINGLEFRAME, SINGLEFRAMEDONE, SINGLEPASS, STATICIMAGEDONE, TOPDOWNLEFTRIGHT
    • Constructor Summary

      Constructors 
      Constructor Description
      GrayFilter()  
      GrayFilter​(int brightness, int contrast, int alpha)  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      static GrayFilter createDisabledIconFilter​(boolean dark)  
      int filterRGB​(int x, int y, int rgb)  
      int getAlpha()  
      int getBrightness()  
      int getContrast()  
      • Methods inherited from class java.awt.image.RGBImageFilter

        filterIndexColorModel, filterRGBPixels, setColorModel, setPixels, setPixels, substituteColorModel
      • Methods inherited from class java.awt.image.ImageFilter

        clone, getFilterInstance, imageComplete, resendTopDownLeftRight, setDimensions, setHints, setProperties
      • Methods inherited from class java.lang.Object

        equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Field Detail

      • brightness

        private final float brightness
      • contrast

        private final float contrast
      • alpha

        private final int alpha
      • origContrast

        private final int origContrast
      • origBrightness

        private final int origBrightness
    • Constructor Detail

      • GrayFilter

        public GrayFilter​(int brightness,
                          int contrast,
                          int alpha)
        Parameters:
        brightness - in range [-100..100] where 0 has no effect
        contrast - in range [-100..100] where 0 has no effect
        alpha - in range [0..100] where 0 is transparent, 100 has no effect
      • GrayFilter

        public GrayFilter()
    • Method Detail

      • createDisabledIconFilter

        public static GrayFilter createDisabledIconFilter​(boolean dark)
      • getBrightness

        public int getBrightness()
      • getContrast

        public int getContrast()
      • getAlpha

        public int getAlpha()
      • filterRGB

        public int filterRGB​(int x,
                             int y,
                             int rgb)
        Specified by:
        filterRGB in class java.awt.image.RGBImageFilter