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package org.valkyriercp.component;

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

public class ShadowBorder extends AbstractBorder {

    private static final Insets INSETS = new Insets(1, 1, 3, 3);

    public Insets getBorderInsets(Component c) {
        return INSETS;
    }

    public void paintBorder(Component c, Graphics g, int x, int y, int w, int h) {

        Color shadow = UIManager.getColor("controlShadow");
        if (shadow == null) {
            shadow = Color.GRAY;
        }
        Color lightShadow = new Color(shadow.getRed(), shadow.getGreen(), shadow.getBlue(), 170);
        Color lighterShadow = new Color(shadow.getRed(), shadow.getGreen(), shadow.getBlue(), 70);
        g.translate(x, y);

        g.setColor(shadow);
        g.fillRect(0, 0, w - 3, 1);
        g.fillRect(0, 0, 1, h - 3);
        g.fillRect(w - 3, 1, 1, h - 3);
        g.fillRect(1, h - 3, w - 3, 1);
        // Shadow line 1
        g.setColor(lightShadow);
        g.fillRect(w - 3, 0, 1, 1);
        g.fillRect(0, h - 3, 1, 1);
        g.fillRect(w - 2, 1, 1, h - 3);
        g.fillRect(1, h - 2, w - 3, 1);
        // Shadow line2
        g.setColor(lighterShadow);
        g.fillRect(w - 2, 0, 1, 1);
        g.fillRect(0, h - 2, 1, 1);
        g.fillRect(w - 2, h - 2, 1, 1);
        g.fillRect(w - 1, 1, 1, h - 2);
        g.fillRect(1, h - 1, w - 2, 1);
        g.translate(-x, -y);
    }
}