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Escher is a collection of libraries for X Window System written purely in Java.

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package gnu.app.puppet;

import gnu.x11.Display;
import gnu.x11.Window;


/** Wrapper of {@link gnu.x11.Window} for {@link Puppet}. */
public class Client extends Window {
  // system attributes
  public Window.AttributesReply attributes;
  public WMClassHint class_hint;
  public String name;
  public WMSizeHints size_hints;


  // internal states
  public boolean early_unmapped, early_destroyed;
  public int register = -1;     // invalid register index
  public int saved_width, saved_height;
  public int state;


  /** Intern. */
  public Client (Display display, int id) {
    super (display, id);
  }


  public static Object intern (Window window) {
    return intern (window.display, window.id);
  }


  public static Object intern (Display display, int id) {
    Object value = display.resources.get (new Integer (id));
    if (value != null && value instanceof Client) return value;
    return new Client (display, id);
  }
    
  
  public static final String [] STATE_STRINGS = {
    "unmanaged", "normal", "hidden", "no-focus", "early-unmapped",
    "early-destroyed"
  };


  public String toString () {
    String name0 = name == null ? "" : "\"" + name + "\" ";
    String hint0 = class_hint == null ? "(" : class_hint.toString () + " (";
    return "#Client " + name0 + hint0 + STATE_STRINGS [state] + ") "
      + super.toString ();
  }
}