Returns a shape that is more or less equivalent to the supplied shape. - Java 2D Graphics

Java examples for 2D Graphics:Shape

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Description

Returns a shape that is more or less equivalent to the supplied shape.

Demo Code

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import java.awt.Polygon;
import java.awt.Shape;
import java.awt.geom.Arc2D;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Line2D;
import java.awt.geom.Path2D;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.RenderedImage;
import java.awt.image.WritableRaster;
import java.util.Hashtable;

public class Main{
    /**
     * Returns a shape that is more or less equivalent to the supplied shape.
     * 
     * @param shape  the shape ({@code null} not permitted).
     * 
     * @return A copy of the shape (it may not be the same class). 
     */
    public static Shape copyOf(Shape shape) {
        Args.nullNotPermitted(shape, "shape");
        if (shape instanceof Line2D) {
            Line2D l = (Line2D) shape;
            return new Line2D.Double(l.getX1(), l.getY1(), l.getX2(),
                    l.getY2());
        }
        if (shape instanceof Rectangle2D) {
            Rectangle2D r = (Rectangle2D) shape;
            return new Rectangle2D.Double(r.getX(), r.getY(), r.getWidth(),
                    r.getHeight());
        }
        if (shape instanceof RoundRectangle2D) {
            RoundRectangle2D rr = (RoundRectangle2D) shape;
            return new RoundRectangle2D.Double(rr.getX(), rr.getY(),
                    rr.getWidth(), rr.getHeight(), rr.getArcWidth(),
                    rr.getArcHeight());
        }
        if (shape instanceof Arc2D) {
            Arc2D arc = (Arc2D) shape;
            return new Arc2D.Double(arc.getX(), arc.getY(), arc.getWidth(),
                    arc.getHeight(), arc.getAngleStart(),
                    arc.getAngleExtent(), arc.getArcType());
        }
        if (shape instanceof Ellipse2D) {
            Ellipse2D ell = (Ellipse2D) shape;
            return new Ellipse2D.Double(ell.getX(), ell.getY(),
                    ell.getWidth(), ell.getHeight());
        }
        if (shape instanceof Polygon) {
            Polygon p = (Polygon) shape;
            return new Polygon(p.xpoints, p.ypoints, p.npoints);
        }
        return new Path2D.Double(shape);
    }
}

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