From 0f732a6453da4fa4d8b563ee4a8a0f85901dad48 Mon Sep 17 00:00:00 2001
From: ray <ray@6335cc39-0255-0410-8fd6-9bcaacd3b74c>
Date: Thu, 14 Aug 2003 22:05:07 +0000
Subject: [PATCH] A JLayeredPane that gets around an awt/swing bug by removing
 all popups whenever any component is removed. Whee.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@1198 6335cc39-0255-0410-8fd6-9bcaacd3b74c
---
 .../com/samskivert/swing/SafeLayeredPane.java | 39 +++++++++++++++++++
 1 file changed, 39 insertions(+)
 create mode 100644 projects/samskivert/src/java/com/samskivert/swing/SafeLayeredPane.java

diff --git a/projects/samskivert/src/java/com/samskivert/swing/SafeLayeredPane.java b/projects/samskivert/src/java/com/samskivert/swing/SafeLayeredPane.java
new file mode 100644
index 00000000..fe86e955
--- /dev/null
+++ b/projects/samskivert/src/java/com/samskivert/swing/SafeLayeredPane.java
@@ -0,0 +1,39 @@
+//
+// $Id: SafeLayeredPane.java,v 1.1 2003/08/14 22:05:07 ray Exp $
+
+package com.samskivert.swing;
+
+import java.awt.Component;
+import javax.swing.JLayeredPane;
+
+/**
+ * A JLayeredPane that removes all popups when any component is removed.
+ * This gets around an apparent bug in awt/swing that fucks up hard when
+ * a component is removed and a popup is up.
+ */
+public class SafeLayeredPane extends JLayeredPane
+{
+    public void remove (int index)
+    {
+        Component c = getComponent(index);
+
+        // remove all popups
+        boolean removedPops = false;
+        for (int ii=getComponentCount() - 1; ii >= 0; ii--) {
+            if (getLayer(getComponent(ii)) == POPUP_LAYER.intValue()) {
+                super.remove(ii);
+                removedPops = true;
+            }
+        }
+
+        // if we removed any popups, the index may have changed so we
+        // need to remove by reference
+        if (removedPops) {
+            remove(c); // which will end up calling this method again, but
+            // the second time the popups will already be gone
+
+        } else {
+            super.remove(index);
+        }
+    }
+}