org.tinymediamanager.ui.ShadowLayerUI Maven / Gradle / Ivy

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/*
 * Copyright 2012 - 2019 Manuel Laggner
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.tinymediamanager.ui;

import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;

import javax.swing.JComponent;
import javax.swing.plaf.LayerUI;

/**
 * an UI class to draw a small drop shadow on the top
 *
 * @author Manuel Laggner
 */
public class ShadowLayerUI extends LayerUI {
  @Override
  public void paint(Graphics g, JComponent c) {
    super.paint(g, c);

    Graphics2D g2 = (Graphics2D) g.create();

    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    GradientPaint gp = new GradientPaint(0, 0, new Color(32, 32, 32, 80), 0, 4, new Color(0, 0, 0, 0));
    g2.setPaint(gp);
    g2.fill(new Rectangle2D.Double(0, 0, c.getWidth(), 7));

    g2.dispose();
  }
}