net.sf.fmj.ejmf.toolkit.gui.controls.skins.ejmf.PauseButton Maven / Gradle / Ivy

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Freedom for Media in Java
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package net.sf.fmj.ejmf.toolkit.gui.controls.skins.ejmf;

import java.awt.*;

import javax.swing.*;

/**
 * Pause button for StandardControlPanel.
 * 
 * PauseButton over-rides BasicControlButton's paintIcon method to draw two
 * vertical bars as button icon.
 * 
 *
 * @see net.sf.fmj.ejmf.toolkit.gui.controls.skins.ejmf.BasicControlButton
 */

public class PauseButton extends BasicControlButton
{
    /**
     * Create a pause button.
     */
    public PauseButton()
    {
        super();
    }

    /**
     * Draw two rectangles into button.
     *
     * @param g
     *            Graphics into which rectangles are drawn.
     * @param x
     *            not used.
     * @param y
     *            not used .
     * @param size
     *            not used. Rather Component.getSize() is used to to determine
     *            size of button and size of bars is determined relative to
     *            those dimensions.
     * @param isEnabled
     *            If true, bars are drawn enabled (i.e. black), otherwise, they
     *            are offset by (1,1) and drawn with UIManager's controlShadow
     *            color.
     */
    @Override
    protected void paintIcon(Graphics g, int x, int y, int size,
            boolean isEnabled)
    {
        int w = getSize().width;
        int h = getSize().height;
        int x_inc = w / 8;
        int y_inc = h / 4;
        int bar_w = 2 * x_inc - x_inc / 2;
        int bar_h = 2 * y_inc;
        g.translate(2 * x_inc + 1, y_inc);
        if (isEnabled)
        {
            g.fillRect(0, 0, bar_w, bar_h);
            g.fillRect(3 * x_inc, 0, bar_w, bar_h);
        } else
        {
            g.translate(1, 1);
            Color oldColor = g.getColor();
            g.setColor(UIManager.getColor("controlShadow"));
            g.fillRect(0, 0, bar_w, bar_h);
            g.fillRect(3 * x_inc, 0, bar_w, bar_h);

            // "Hightlight" edge of bars to make them look etched.
            g.setColor(UIManager.getColor("controlHighlight"));

            // Etch right-side of left bar
            g.drawLine(bar_w, 0, bar_w, bar_h - 1);
            // Etch bottom of left bar
            g.drawLine(0, bar_h - 1, bar_w, bar_h - 1);
            // Etch right-side of right bar
            g.drawLine(3 * x_inc + bar_w, 0, 3 * x_inc + bar_w, bar_h - 1);
            // Etch bottom of right bar
            g.drawLine(3 * x_inc, bar_h - 1, 3 * x_inc + bar_w, bar_h - 1);

            g.setColor(oldColor);
            g.translate(-1, -1);
        }
        g.translate(-x_inc, -y_inc);
    }
}