VAquaRendering.src.org.violetlib.geom.ExpandableEllipseOutline Maven / Gradle / Ivy

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/*
 * Copyright (c) 2015 Alan Snyder.
 * All rights reserved.
 *
 * You may not use, copy or modify this file, except in compliance with the license agreement. For details see
 * accompanying license terms.
 */

package org.violetlib.geom;

import java.awt.Shape;
import java.awt.geom.Ellipse2D;

import org.jetbrains.annotations.*;

/**
  An expandable outline in the form of an ellipse.
*/

public final class ExpandableEllipseOutline
  extends ExpandableOutline
{
    private final double x;
    private final double y;
    private final double width;
    private final double height;

    public ExpandableEllipseOutline(double x, double y, double width, double height)
    {
        this.x = x;
        this.y = y;
        this.width = width;
        this.height = height;
    }

    public ExpandableEllipseOutline(Ellipse2D source)
    {
        this.x = source.getX();
        this.y = source.getY();
        this.width = source.getWidth();
        this.height = source.getHeight();
    }

    @Override
    public @NotNull Shape getShape(float offset)
    {
        double nx = x - offset;
        double ny = y - offset;
        double nwidth = width + 2 * offset;
        double nheight = height + 2 * offset;
        return new Ellipse2D.Double(nx, ny, nwidth, nheight);
    }
}