Some further FrameManager wrangling and a proper bridge for managed applets.

git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@32 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/media/ManagedJApplet.java

@@ -0,0 +1,95 @@
+//
+// $Id$
+//
+// Nenya library - tools for developing networked games
+// Copyright (C) 2002-2006 Three Rings Design, Inc., All Rights Reserved
+// http://www.threerings.net/code/nenya/
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.threerings.media;
+
+import java.awt.Component;
+import java.awt.Graphics;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.awt.Shape;
+import java.awt.Window;
+import javax.swing.JApplet;
+
+import com.threerings.media.Log;
+
+/**
+ * When using the {@link FrameManager} in an Applet, one must use this
+ * top-level class.
+ */
+public class ManagedJApplet extends JApplet
+{
+    // from interface FrameManager.ManagedRoot
+    public void init (FrameManager fmgr)
+    {
+        _fmgr = fmgr;
+    }
+
+    // from interface FrameManager.ManagedRoot
+    public Window getWindow ()
+    {
+        Component parent = getParent();
+        while (!(parent instanceof Window) && parent != null) {
+            parent = parent.getParent();
+        }
+        return (Window)parent;
+    }
+
+    /**
+     * Returns the frame manager managing this frame.
+     */
+    public FrameManager getFrameManager ()
+    {
+        return _fmgr;
+    }
+
+    @Override // from Component
+    public void paint (Graphics g)
+    {
+        // we catch paint requests and forward them on to the repaint
+        // infrastructure
+        update(g);
+    }
+
+    @Override // from Component
+    public void update (Graphics g)
+    {
+        Shape clip = g.getClip();
+        Rectangle dirty;
+        if (clip != null) {
+            dirty = clip.getBounds();
+        } else {
+            dirty = getRootPane().getBounds();
+            // account for our frame insets
+            Insets insets = getInsets();
+            dirty.x += insets.left;
+            dirty.y += insets.top;
+        }
+
+        if (_fmgr != null) {
+            _fmgr.restoreFromBack(dirty);
+        } else {
+            Log.info("Dropping AWT dirty rect " + dirty + " (" + clip + ").");
+        }
+    }
+
+    protected FrameManager _fmgr;
+}