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package org.netbeans.lib.profiler.ui.components;

import java.awt.*;
import javax.swing.*;


/**
 * Anti-aliased JLabel.
 *
 * @author Ian Formanek
 */
public class JAntiLabel extends JLabel {
    //~ Constructors -------------------------------------------------------------------------------------------------------------

    /**
     * Creates a <code>JLabel</code> instance with
     * no image and with an empty string for the title.
     * The label is centered vertically
     * in its display area.
     * The label's contents, once set, will be displayed on the leading edge
     * of the label's display area.
     */
    public JAntiLabel() {
        super();
    }

    /**
     * Creates a <code>JLabel</code> instance with the specified text.
     * The label is aligned against the leading edge of its display area,
     * and centered vertically.
     *
     * @param text The text to be displayed by the label.
     */
    public JAntiLabel(String text) {
        super(text);
    }

    /**
     * Creates a <code>JLabel</code> instance with the specified image.
     * The label is centered vertically and horizontally
     * in its display area.
     *
     * @param image The image to be displayed by the label.
     */
    public JAntiLabel(Icon image) {
        super(image);
    }

    /**
     * Creates a <code>JLabel</code> instance with the specified
     * text and horizontal alignment.
     * The label is centered vertically in its display area.
     *
     * @param text                The text to be displayed by the label.
     * @param horizontalAlignment One of the following constants
     *                            defined in <code>SwingConstants</code>:
     *                            <code>LEFT</code>,
     *                            <code>CENTER</code>,
     *                            <code>RIGHT</code>,
     *                            <code>LEADING</code> or
     *                            <code>TRAILING</code>.
     */
    public JAntiLabel(String text, int horizontalAlignment) {
        super(text, horizontalAlignment);
    }

    /**
     * Creates a <code>JLabel</code> instance with the specified
     * image and horizontal alignment.
     * The label is centered vertically in its display area.
     *
     * @param image               The image to be displayed by the label.
     * @param horizontalAlignment One of the following constants
     *                            defined in <code>SwingConstants</code>:
     *                            <code>LEFT</code>,
     *                            <code>CENTER</code>,
     *                            <code>RIGHT</code>,
     *                            <code>LEADING</code> or
     *                            <code>TRAILING</code>.
     */
    public JAntiLabel(Icon image, int horizontalAlignment) {
        super(image, horizontalAlignment);
    }

    /**
     * Creates a <code>JLabel</code> instance with the specified
     * text, image, and horizontal alignment.
     * The label is centered vertically in its display area.
     * The text is on the trailing edge of the image.
     *
     * @param text                The text to be displayed by the label.
     * @param icon                The image to be displayed by the label.
     * @param horizontalAlignment One of the following constants
     *                            defined in <code>SwingConstants</code>:
     *                            <code>LEFT</code>,
     *                            <code>CENTER</code>,
     *                            <code>RIGHT</code>,
     *                            <code>LEADING</code> or
     *                            <code>TRAILING</code>.
     */
    public JAntiLabel(String text, Icon icon, int horizontalAlignment) {
        super(text, icon, horizontalAlignment);
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public void paintComponent(Graphics g) {
        if (g instanceof Graphics2D) {
            ((Graphics2D) g).setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
        }

        super.paintComponent(g);
    }
}
