content: /*
   * Copyright 2019 FormDev Software GmbH
   *
   * 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 themeengine.include.com.formdev.flatlaf.util;
  
  import java.awt.Graphics;
  import java.awt.Graphics2D;
  import java.lang.reflect.InvocationTargetException;
  import java.lang.reflect.Method;
  import java.util.logging.Level;
  import java.util.logging.Logger;
  import javax.swing.JComponent;
  import themeengine.include.com.formdev.flatlaf.FlatLaf;
  
  /**
   * Provides Java version compatibility methods.
   *
   * WARNING: This is private API and may change.
   *
   * @author Karl Tauber
   */
  public class JavaCompatibility
  {
  	private static Method drawStringUnderlineCharAtMethod;
  
  	/**
  	 * Java 8: sun.swing.SwingUtilities2.drawStringUnderlineCharAt( JComponent c,
  	 *				Graphics g, String text, int underlinedIndex, int x, int y )
  	 * Java 9: javax.swing.plaf.basic.BasicGraphicsUtils.drawStringUnderlineCharAt( JComponent c,
  	 *				Graphics2D g, String string, int underlinedIndex, float x, float y )
  	 */
  	public static void drawStringUnderlineCharAt( JComponent c, Graphics g,
  		String text, int underlinedIndex, int x, int y )
  	{
  		synchronized( JavaCompatibility.class ) {
  			if( drawStringUnderlineCharAtMethod == null ) {
  				try {
  					Class<?> cls = Class.forName( SystemInfo.isJava_9_orLater
  						? "javax.swing.plaf.basic.BasicGraphicsUtils"
  						: "sun.swing.SwingUtilities2" );
  					drawStringUnderlineCharAtMethod = cls.getMethod( "drawStringUnderlineCharAt", SystemInfo.isJava_9_orLater
  						? new Class[] { JComponent.class, Graphics2D.class, String.class, int.class, float.class, float.class }
  						: new Class[] { JComponent.class, Graphics.class, String.class, int.class, int.class, int.class } );
  				} catch( Exception ex ) {
  					Logger.getLogger( FlatLaf.class.getName() ).log( Level.SEVERE, null, ex );
  					throw new RuntimeException( ex );
  				}
  			}
  		}
  
  		try {
  			if( SystemInfo.isJava_9_orLater )
  				drawStringUnderlineCharAtMethod.invoke( null, c, g, text, underlinedIndex, (float) x, (float) y );
  			else
  				drawStringUnderlineCharAtMethod.invoke( null, c, g, text, underlinedIndex, x, y );
  		} catch( IllegalAccessException | IllegalArgumentException | InvocationTargetException ex ) {
  			Logger.getLogger( FlatLaf.class.getName() ).log( Level.SEVERE, null, ex );
  			throw new RuntimeException( ex );
  		}
  	}
  }
  