lib/browser/GraphBrowser/AWTFontMetrics.java

general solution to the arity bug that occasionally plagues Sledgehammer -- short story, lots of things go kaputt when a polymorphic symbol's arity in the translation is higher than the arity of the fully polymorphic HOL constant

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

  AbstractFontMetrics from the AWT for graphics mode.
  
***************************************************************************/

package GraphBrowser;

import java.awt.FontMetrics;

public class AWTFontMetrics implements AbstractFontMetrics {
  private FontMetrics fontMetrics;

  public AWTFontMetrics(FontMetrics m) {
    fontMetrics = m;
  }

  public int stringWidth(String str) {
    return fontMetrics.stringWidth(str);
  }

  public int getAscent() {
    return fontMetrics.getAscent();
  }

  public int getDescent() {
    return fontMetrics.getDescent();
  }
}