JFrame.java: Implement WindowConstants.

2004-04-21  Mark Wielaard  <mark@klomp.org>

	* javax/awt/JFrame.java: Implement WindowConstants. Remove final
	static fields defined in interface.
	* javax/awt/JDialog.java: Likewise.
	(JDialog): Make constructors public.
	(getDefaultCloseOperation): Make public.
	(processWindowEvent): Call System.exit(0) when EXIT_ON_CLOSE set.
	(setDefaultCloseOperation): Make public. Check argument. Add API doc.
	* javax/swing/JViewport.java (JViewport): Make constructor public.

From-SVN: r80945

1 files changed, 30 insertions, 13 deletions

diff --git a/libjava/javax/swing/JFrame.java b/libjava/javax/swing/JFrame.java
index 864f6ba..89d109f 100644
--- a/libjava/javax/swing/JFrame.java
+++ b/libjava/javax/swing/JFrame.java
@@ -1,5 +1,5 @@
 /* JFrame.java --
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2004 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -57,16 +57,11 @@ import javax.accessibility.AccessibleContext;
  *
  * @author Ronald Veldema (rveldema@cs.vu.nl)
  */
-public class JFrame extends Frame
+public class JFrame extends Frame implements WindowConstants
 {
-    public final static int HIDE_ON_CLOSE        = 0;
-    public final static int EXIT_ON_CLOSE        = 1;
-    public final static int DISPOSE_ON_CLOSE     = 2;
-    public final static int DO_NOTHING_ON_CLOSE  = 3;
-
     protected  AccessibleContext accessibleContext;
 
-    private int close_action = EXIT_ON_CLOSE;    
+    private int close_action = HIDE_ON_CLOSE;    
     
 
     /***************************************************
@@ -192,7 +187,7 @@ public class JFrame extends Frame
     return accessibleContext;
   }
   
-    int getDefaultCloseOperation()
+    public int getDefaultCloseOperation()
     {    return close_action;   }
 
     
@@ -212,7 +207,7 @@ public class JFrame extends Frame
 			{
 			case EXIT_ON_CLOSE:
 			    {
-				System.exit(1);
+				System.exit(0);
 				break;
 			    }
 			case DISPOSE_ON_CLOSE:
@@ -241,8 +236,30 @@ public class JFrame extends Frame
 	    }
     }   
  
-
-    void setDefaultCloseOperation(int operation)
-    {  close_action = operation;   }
+    /**
+     * Defines what happens when this frame is closed. Can be one off
+     * <code>EXIT_ON_CLOSE</code>,
+     * <code>DISPOSE_ON_CLOSE</code>,
+     * <code>HIDE_ON_CLOSE</code> or
+     * <code>DO_NOTHING_ON_CLOSE</code>.
+     * The default is <code>HIDE_ON_CLOSE</code>.
+     * When <code>EXIT_ON_CLOSE</code> is specified this method calls
+     * <code>SecurityManager.checkExit(0)</code> which might throw a
+     * <code>SecurityException</code>. When the specified operation is
+     * not one of the above a <code>IllegalArgumentException</code> is
+     * thrown.
+     */
+    public void setDefaultCloseOperation(int operation)
+    {
+      SecurityManager sm = System.getSecurityManager();
+      if (sm != null && operation == EXIT_ON_CLOSE)
+	sm.checkExit(0);
+
+      if (operation != EXIT_ON_CLOSE && operation != DISPOSE_ON_CLOSE
+	  && operation != HIDE_ON_CLOSE && operation != DO_NOTHING_ON_CLOSE)
+	throw new IllegalArgumentException("operation = " + operation);
+	  
+      close_action = operation;
+    }
 
 }