From a01e54d0cb8f9511077685d0d3f75004df7bdce1 Mon Sep 17 00:00:00 2001
From: Jim Procter <jprocter@issues.jalview.org>
Date: Fri, 25 Mar 2016 15:31:22 +0000
Subject: [PATCH] JAL-2034 break out of redraw loop early if another update
 has already been requested

---
 src/jalview/appletgui/OverviewPanel.java |    8 ++++++++
 src/jalview/gui/OverviewPanel.java       |   16 ++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/jalview/appletgui/OverviewPanel.java b/src/jalview/appletgui/OverviewPanel.java
index bc64728..c068a4d 100755
--- a/src/jalview/appletgui/OverviewPanel.java
+++ b/src/jalview/appletgui/OverviewPanel.java
@@ -304,6 +304,10 @@ public class OverviewPanel extends Panel implements Runnable,
     AlignmentI alignment = av.getAlignment();
     for (row = 0; row <= sequencesHeight; row++)
     {
+      if (resizeAgain)
+      {
+        break;
+      }
       if ((int) (row * sampleRow) == lastrow)
       {
         sameRow++;
@@ -385,6 +389,10 @@ public class OverviewPanel extends Panel implements Runnable,
     {
       for (col = 0; col < width; col++)
       {
+        if (resizeAgain)
+        {
+          break;
+        }
         lastcol = (int) (col * sampleCol);
         {
           mg.translate(col, sequencesHeight);
diff --git a/src/jalview/gui/OverviewPanel.java b/src/jalview/gui/OverviewPanel.java
index de0dbe5..9be4fdb 100755
--- a/src/jalview/gui/OverviewPanel.java
+++ b/src/jalview/gui/OverviewPanel.java
@@ -297,12 +297,20 @@ public class OverviewPanel extends JPanel implements Runnable
     boolean hiddenRow = false;
     for (row = 0; row < sequencesHeight; row++)
     {
+      if (resizeAgain)
+      {
+        break;
+      }
       if ((int) (row * sampleRow) == lastrow)
       {
         // No need to recalculate the colours,
         // Just copy from the row above
         for (col = 0; col < width; col++)
         {
+          if (resizeAgain)
+          {
+            break;
+          }
           miniMe.setRGB(col, row, miniMe.getRGB(col, row - 1));
         }
         continue;
@@ -340,6 +348,10 @@ public class OverviewPanel extends JPanel implements Runnable
 
       for (col = 0; col < width; col++)
       {
+        if (resizeAgain)
+        {
+          break;
+        }
         if ((int) (col * sampleCol) == lastcol
                 && (int) (row * sampleRow) == lastrow)
         {
@@ -380,6 +392,10 @@ public class OverviewPanel extends JPanel implements Runnable
       renderer.updateFromAlignViewport(av);
       for (col = 0; col < width; col++)
       {
+        if (resizeAgain)
+        {
+          break;
+        }
         lastcol = (int) (col * sampleCol);
         {
           mg.translate(col, sequencesHeight);
-- 
1.7.10.2