package jalview.renderer;

import java.awt.FontMetrics;
import java.awt.Image;
import java.awt.image.ImageObserver;

public interface AwtRenderPanelI extends ImageObserver
{
  /**
   * old image used when data is currently being calculated and cannot be rendered
   */
  Image getFadedImage();

  /**
   * FontMetrics to use for rendering into Panel
   * @return
   */
  FontMetrics getFontMetrics();

  /**
   * width of image to render in panel
   */
  int getFadedImageWidth();

}