Class MultipleGradientPaint

  • All Implemented Interfaces:
    java.awt.Paint, java.awt.Transparency
    Direct Known Subclasses:
    LinearGradientPaint, RadialGradientPaint

    public abstract class MultipleGradientPaint
    extends java.lang.Object
    implements java.awt.Paint
    This is the superclass for Paints which use a multiple color gradient to fill in their raster. It provides storage for variables and enumerated values common to LinearGradientPaint and RadialGradientPaint.
    • Field Detail

      • transparency

        protected int transparency
        Transparency.
      • fractions

        protected float[] fractions
        Gradient keyframe values in the range 0 to 1.
      • colors

        protected java.awt.Color[] colors
        Gradient colors.
      • gradientTransform

        protected java.awt.geom.AffineTransform gradientTransform
        Transform to apply to gradient.
      • NO_CYCLE

        public static final MultipleGradientPaint.CycleMethodEnum NO_CYCLE
        Indicates (if the gradient starts or ends inside the target region) to use the terminal colors to fill the remaining area. (default)
      • REFLECT

        public static final MultipleGradientPaint.CycleMethodEnum REFLECT
        Indicates (if the gradient starts or ends inside the target region), to cycle the gradient colors start-to-end, end-to-start to fill the remaining area.
      • REPEAT

        public static final MultipleGradientPaint.CycleMethodEnum REPEAT
        Indicates (if the gradient starts or ends inside the target region), to cycle the gradient colors start-to-end, start-to-end to fill the remaining area.
    • Constructor Detail

      • MultipleGradientPaint

        public MultipleGradientPaint​(float[] fractions,
                                     java.awt.Color[] colors,
                                     MultipleGradientPaint.CycleMethodEnum cycleMethod,
                                     MultipleGradientPaint.ColorSpaceEnum colorSpace,
                                     java.awt.geom.AffineTransform gradientTransform)
        Superclass constructor, typical user should never have to call this.
        Parameters:
        fractions - numbers ranging from 0.0 to 1.0 specifying the distribution of colors along the gradient
        colors - array of colors corresponding to each fractional value
        cycleMethod - either NO_CYCLE, REFLECT, or REPEAT
        colorSpace - which colorspace to use for interpolation, either SRGB or LINEAR_RGB
        gradientTransform - transform to apply to the gradient
        Throws:
        java.lang.NullPointerException - if arrays are null, or gradientTransform is null
        java.lang.IllegalArgumentException - if fractions.length != colors.length, or if colors is less than 2 in size, or if an enumerated value is bad.
    • Method Detail

      • getColors

        public java.awt.Color[] getColors()
        Returns a copy of the array of colors used by this gradient.
        Returns:
        a copy of the array of colors used by this gradient
      • getFractions

        public float[] getFractions()
        Returns a copy of the array of floats used by this gradient to calculate color distribution.
        Returns:
        a copy of the array of floats used by this gradient to calculate color distribution
      • getTransparency

        public int getTransparency()
        Returns the transparency mode for this LinearGradientPaint.
        Specified by:
        getTransparency in interface java.awt.Transparency
        Returns:
        an integer value representing this LinearGradientPaint object's transparency mode.
      • getCycleMethod

        public MultipleGradientPaint.CycleMethodEnum getCycleMethod()
        Returns the enumerated type which specifies cycling behavior.
        Returns:
        the enumerated type which specifies cycling behavior
      • getColorSpace

        public MultipleGradientPaint.ColorSpaceEnum getColorSpace()
        Returns the enumerated type which specifies color space for interpolation.
        Returns:
        the enumerated type which specifies color space for interpolation
      • getTransform

        public java.awt.geom.AffineTransform getTransform()
        Returns a copy of the transform applied to the gradient.
        Returns:
        a copy of the transform applied to the gradient.