Class DialBackground

    • Field Detail

      • serialVersionUID

        static final long serialVersionUID
        For serialization.
        See Also:
        Constant Field Values
      • paint

        private transient java.awt.Paint paint
        The background paint. This field is transient because serialization requires special handling.
      • gradientPaintTransformer

        private GradientPaintTransformer gradientPaintTransformer
        The transformer used when the background paint is an instance of GradientPaint.
    • Constructor Detail

      • DialBackground

        public DialBackground()
        Creates a new instance of DialBackground. The default background paint is Color.WHITE.
      • DialBackground

        public DialBackground​(java.awt.Paint paint)
        Creates a new instance of DialBackground.
        Parameters:
        paint - the paint (null not permitted).
        Throws:
        java.lang.IllegalArgumentException - if Paint is null.
    • Method Detail

      • getPaint

        public java.awt.Paint getPaint()
        Returns the paint used to fill the background.
        Returns:
        The paint (never null).
        See Also:
        setPaint(Paint)
      • setPaint

        public void setPaint​(java.awt.Paint paint)
        Sets the paint for the dial background and sends a DialLayerChangeEvent to all registered listeners.
        Parameters:
        paint - the paint (null not permitted).
        See Also:
        getPaint()
      • setGradientPaintTransformer

        public void setGradientPaintTransformer​(GradientPaintTransformer t)
        Sets the transformer used to adjust the coordinates of any GradientPaint instance used for the background paint, and sends a DialLayerChangeEvent to all registered listeners.
        Parameters:
        t - the transformer (null not permitted).
        See Also:
        getGradientPaintTransformer()
      • isClippedToWindow

        public boolean isClippedToWindow()
        Returns true to indicate that this layer should be clipped within the dial window.
        Specified by:
        isClippedToWindow in interface DialLayer
        Returns:
        true.
      • draw

        public void draw​(java.awt.Graphics2D g2,
                         DialPlot plot,
                         java.awt.geom.Rectangle2D frame,
                         java.awt.geom.Rectangle2D view)
        Draws the background to the specified graphics device. If the dial frame specifies a window, the clipping region will already have been set to this window before this method is called.
        Specified by:
        draw in interface DialLayer
        Parameters:
        g2 - the graphics device (null not permitted).
        plot - the plot (ignored here).
        frame - the dial frame (ignored here).
        view - the view rectangle (null not permitted).
      • equals

        public boolean equals​(java.lang.Object obj)
        Tests this instance for equality with an arbitrary object.
        Overrides:
        equals in class AbstractDialLayer
        Parameters:
        obj - the object (null permitted).
        Returns:
        A boolean.
      • hashCode

        public int hashCode()
        Returns a hash code for this instance.
        Overrides:
        hashCode in class AbstractDialLayer
        Returns:
        The hash code.
      • clone

        public java.lang.Object clone()
                               throws java.lang.CloneNotSupportedException
        Returns a clone of this instance.
        Specified by:
        clone in interface PublicCloneable
        Overrides:
        clone in class AbstractDialLayer
        Returns:
        The clone.
        Throws:
        java.lang.CloneNotSupportedException - if some attribute of this instance cannot be cloned.
      • writeObject

        private void writeObject​(java.io.ObjectOutputStream stream)
                          throws java.io.IOException
        Provides serialization support.
        Parameters:
        stream - the output stream.
        Throws:
        java.io.IOException - if there is an I/O error.
      • readObject

        private void readObject​(java.io.ObjectInputStream stream)
                         throws java.io.IOException,
                                java.lang.ClassNotFoundException
        Provides serialization support.
        Parameters:
        stream - the input stream.
        Throws:
        java.io.IOException - if there is an I/O error.
        java.lang.ClassNotFoundException - if there is a classpath problem.