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/*
* 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 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 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.IS_JAVA_9_OR_LATER
? "javax.swing.plaf.basic.BasicGraphicsUtils"
: "sun.swing.SwingUtilities2" );
drawStringUnderlineCharAtMethod = cls.getMethod( "drawStringUnderlineCharAt", SystemInfo.IS_JAVA_9_OR_LATER
? 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.IS_JAVA_9_OR_LATER )
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 );
}
}
}
