Android Open Source - android-augment-reality-framework Paintable Circle

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License

The source code is released under:

GNU General Public License

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Java Source Code

package com.jwetherell.augmented_reality.ui.objects;
/*from   w  w w. j av  a2  s.  c om*/
import android.graphics.Canvas;


/**
 * This class extends PaintableObject to draw a circle with a given radius.
 * 
 * @author Justin Wetherell <phishman3579@gmail.com>
 */
public class PaintableCircle extends PaintableObject {

    private int color = 0;
    private float radius = 0;
    private boolean fill = false;

    public PaintableCircle(int color, float radius, boolean fill) {
        set(color, radius, fill);
    }

    /**
     * Set the objects parameters. This should be used instead of creating new
     * objects.
     * 
     * @param color
     *            Color of the circle.
     * @param radius
     *            Radius of the circle.
     * @param fill
     *            Fill color of the circle.
     */
    public void set(int color, float radius, boolean fill) {
        this.color = color;
        this.radius = radius;
        this.fill = fill;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public void paint(Canvas canvas) {
        if (canvas == null) throw new NullPointerException();

        canvas.save();
        canvas.translate(-radius, -radius);

        setFill(fill);
        setColor(color);
        paintCircle(canvas, x, y, radius);

        canvas.restore();
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public float getWidth() {
        return radius * 2;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public float getHeight() {
        return radius * 2;
    }
}

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