lib/browser/GraphBrowser/AbstractFontMetrics.java

updated to jedit_build-20181025 according to patches/macos (Java 11), patches/putenv;
proper update of jEdit environment -- avoid warnings in Java 11;
activate jdk-11+28;

/***************************************************************************
  Title:      GraphBrowser/AWTFontMetrics.java
  Author:     Gerwin Klein, TU Muenchen

  AbstractFontMetrics avoids dependency on java.awt.FontMetrics in 
  batch mode.
  
***************************************************************************/

package GraphBrowser;

public interface AbstractFontMetrics {
  public int stringWidth(String str);
  public int getAscent();
  public int getDescent();
}