arc2d.java

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      this.start = start;
      this.extent = extent;
    }
      
    /**
     * Create a new arc with the given dimensions.
     *
     * @param r the bounding box
     * @param start the start angle, in degrees
     * @param extent the extent, in degrees
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     * @throws NullPointerException if r is null
     */
    public Double(Rectangle2D r, double start, double extent, int type)
    {
      super(type);
      x = r.getX();
      y = r.getY();
      width = r.getWidth();
      height = r.getHeight();
      this.start = start;
      this.extent = extent;
    }

    /**
     * Return the x coordinate of the bounding box.
     *
     * @return the value of x
     */
    public double getX()
    {
      return x;
    }

    /**
     * Return the y coordinate of the bounding box.
     *
     * @return the value of y
     */
    public double getY()
    {
      return y;
    }

    /**
     * Return the width of the bounding box.
     *
     * @return the value of width
     */
    public double getWidth()
    {
      return width;
    }

    /**
     * Return the height of the bounding box.
     *
     * @return the value of height
     */
    public double getHeight()
    {
      return height;
    }

    /**
     * Return the start angle of the arc, in degrees.
     *
     * @return the value of start
     */
    public double getAngleStart()
    {
      return start;
    }

    /**
     * Return the extent of the arc, in degrees.
     *
     * @return the value of extent
     */
    public double getAngleExtent()
    {
      return extent;
    }

    /**
     * Tests if the arc contains points.
     *
     * @return true if the arc has no interior
     */
    public boolean isEmpty()
    {
      return width <= 0 || height <= 0;
    }

    /**
     * Sets the arc to the given dimensions.
     *
     * @param x the x coordinate
     * @param y the y coordinate
     * @param w the width
     * @param h the height
     * @param start the start angle, in degrees
     * @param extent the extent, in degrees
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     */
    public void setArc(double x, double y, double w, double h,
                       double start, double extent, int type)
    {
      this.x = x;
      this.y = y;
      width = w;
      height = h;
      this.start = start;
      this.extent = extent;
      setArcType(type);
    }

    /**
     * Sets the start angle of the arc.
     *
     * @param start the new start angle
     */
    public void setAngleStart(double start)
    {
      this.start = start;
    }

    /**
     * Sets the extent angle of the arc.
     *
     * @param start the new extent angle
     */
    public void setAngleExtent(double extent)
    {
      this.extent = extent;
    }

    /**
     * Creates a tight bounding box given dimensions that more precise than
     * the bounding box of the ellipse.
     *
     * @param x the x coordinate
     * @param y the y coordinate
     * @param w the width
     * @param h the height
     */
    protected Rectangle2D makeBounds(double x, double y, double w, double h)
    {
      return new Rectangle2D.Double(x, y, w, h);
    }
  } // class Double

  /**
   * This class implements an arc in float precision.
   *
   * @author Eric Blake <[e-mail]
   * @since 1.2
   */
  public static class Float extends Arc2D
  {
    /** The x coordinate of the box bounding the ellipse of this arc. */
    public float x;

    /** The y coordinate of the box bounding the ellipse of this arc. */
    public float y;

    /** The width of the box bounding the ellipse of this arc. */
    public float width;

    /** The height of the box bounding the ellipse of this arc. */
    public float height;

    /** The start angle of this arc, in degrees. */
    public float start;

    /** The extent angle of this arc, in degrees. */
    public float extent;

    /**
     * Create a new, open arc at (0,0) with 0 extent.
     */
    public Float()
    {
      super(OPEN);
    }

    /**
     * Create a new arc of the given type at (0,0) with 0 extent.
     *
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     */
    public Float(int type)
    {
      super(type);
    }

    /**
     * Create a new arc with the given dimensions.
     *
     * @param x the x coordinate
     * @param y the y coordinate
     * @param w the width
     * @param h the height
     * @param start the start angle, in degrees
     * @param extent the extent, in degrees
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     */
    public Float(float x, float y, float w, float h,
                  float start, float extent, int type)
    {
      super(type);
      this.x = x;
      this.y = y;
      width = w;
      height = h;
      this.start = start;
      this.extent = extent;
    }
      
    /**
     * Create a new arc with the given dimensions.
     *
     * @param r the bounding box
     * @param start the start angle, in degrees
     * @param extent the extent, in degrees
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     * @throws NullPointerException if r is null
     */
    public Float(Rectangle2D r, float start, float extent, int type)
    {
      super(type);
      x = (float) r.getX();
      y = (float) r.getY();
      width = (float) r.getWidth();
      height = (float) r.getHeight();
      this.start = start;
      this.extent = extent;
    }

    /**
     * Return the x coordinate of the bounding box.
     *
     * @return the value of x
     */
    public double getX()
    {
      return x;
    }

    /**
     * Return the y coordinate of the bounding box.
     *
     * @return the value of y
     */
    public double getY()
    {
      return y;
    }

    /**
     * Return the width of the bounding box.
     *
     * @return the value of width
     */
    public double getWidth()
    {
      return width;
    }

    /**
     * Return the height of the bounding box.
     *
     * @return the value of height
     */
    public double getHeight()
    {
      return height;
    }

    /**
     * Return the start angle of the arc, in degrees.
     *
     * @return the value of start
     */
    public double getAngleStart()
    {
      return start;
    }

    /**
     * Return the extent of the arc, in degrees.
     *
     * @return the value of extent
     */
    public double getAngleExtent()
    {
      return extent;
    }

    /**
     * Tests if the arc contains points.
     *
     * @return true if the arc has no interior
     */
    public boolean isEmpty()
    {
      return width <= 0 || height <= 0;
    }

    /**
     * Sets the arc to the given dimensions.
     *
     * @param x the x coordinate
     * @param y the y coordinate
     * @param w the width
     * @param h the height
     * @param start the start angle, in degrees
     * @param extent the extent, in degrees
     * @param type the arc type: {@link #OPEN}, {@link #CHORD}, or {@link #PIE}
     * @throws IllegalArgumentException if type is invalid
     */
    public void setArc(double x, double y, double w, double h,
                       double start, double extent, int type)
    {
      this.x = (float) x;
      this.y = (float) y;
      width = (float) w;
      height = (float) h;
      this.start = (float) start;
      this.extent = (float) extent;
      setArcType(type);
    }

    /**
     * Sets the start angle of the arc.
     *
     * @param start the new start angle
     */
    public void setAngleStart(double start)
    {
      this.start = (float) start;
    }

    /**
     * Sets the extent angle of the arc.
     *
     * @param start the new extent angle
     */
    public void setAngleExtent(double extent)
    {
      this.extent = (float) extent;
    }

    /**
     * Creates a tight bounding box given dimensions that more precise than
     * the bounding box of the ellipse.
     *
     * @param x the x coordinate
     * @param y the y coordinate
     * @param w the width
     * @param h the height
     */
    protected Rectangle2D makeBounds(double x, double y, double w, double h)
    {
      return new Rectangle2D.Float((float) x, (float) y, (float) w, (float) h);
    }
  } // class Float
} // class Arc2D