From 27b299821e542ddd590e3191682017c093fec14d Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Fri, 26 Aug 2005 12:48:03 +0000
Subject: [PATCH] resizeAgain flag set if user resizes whilst image is being
 prepared

---
 src/jalview/appletgui/OverviewPanel.java |   36 +++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/src/jalview/appletgui/OverviewPanel.java b/src/jalview/appletgui/OverviewPanel.java
index d02892b..93ff487 100755
--- a/src/jalview/appletgui/OverviewPanel.java
+++ b/src/jalview/appletgui/OverviewPanel.java
@@ -164,19 +164,28 @@ public class OverviewPanel
     }
   }
 
+  /**
+   * DOCUMENT ME!
+   */
   public void updateOverviewImage()
   {
-    if (resizing)
-    {
-      return;
-    }
+      if (resizing)
+      {
+          resizeAgain = true;
+          return;
+      }
 
-    resizing = true;
-    Thread thread = new Thread(this);
-    thread.start();
-    repaint();
+      resizing = true;
+
+      Thread thread = new Thread(this);
+      thread.start();
+      repaint();
   }
 
+  // This is set true if the user resizes whilst
+  // the overview is being calculated
+    boolean resizeAgain = false;
+
   public void run()
   {
     miniMe = null;
@@ -230,6 +239,9 @@ public class OverviewPanel
 
         for (int sSeq = 0, chunky = 0; sSeq < alheight; sSeq += maxSize, chunky++)
         {
+          if(resizeAgain)
+                  break;
+
           eSeq += maxSize;
           if (eSeq > alheight)
           {
@@ -271,10 +283,18 @@ public class OverviewPanel
           "Out of memory when trying to calculate the overview window image!");
     }
 
+    System.gc();
+
     av.setRenderGaps(oldRenderGaps);
     resizing = false;
 
     setBoxPosition();
+
+    if(resizeAgain)
+    {
+      resizeAgain = false;
+      updateOverviewImage();
+    }
   }
 
   public void setBoxPosition()
-- 
1.7.10.2