X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fjalview%2Fgui%2FAlignmentPanel.java;h=75729c330775e2b93ab5067126233e926b726e18;hb=8004878db16757b62ee2c35738506bc4509428cf;hp=b3ad3ad2fa4fa8a02624c5645ba16c4f664d0366;hpb=9340addc932216a64599577711bc9043b5f039da;p=jalview.git

diff --git a/src/jalview/gui/AlignmentPanel.java b/src/jalview/gui/AlignmentPanel.java
index b3ad3ad..75729c3 100755
--- a/src/jalview/gui/AlignmentPanel.java
+++ b/src/jalview/gui/AlignmentPanel.java
@@ -27,6 +27,9 @@ public class AlignmentPanel extends GAlignmentPanel implements AdjustmentListene
   AnnotationPanel annotationPanel;
   AnnotationLabels alabels;
 
+  // this value is set false when selection area being dragged
+  boolean fastPaint = true;
+
   public AlignmentPanel(AlignFrame af, final AlignViewport av)
   {
     alignFrame = af;
@@ -274,34 +277,40 @@ public class AlignmentPanel extends GAlignmentPanel implements AdjustmentListene
     {
       if(vscroll.getValue()<1)
         return false;
+      fastPaint  = false;
       vscroll.setValue(vscroll.getValue() - 1);
     }
     else
     {
      if(vextent+vscroll.getValue() >= av.getAlignment().getHeight())
        return false;
+      fastPaint  = false;
       vscroll.setValue(vscroll.getValue() + 1);
     }
+    fastPaint = true;
     return true;
   }
 
   public boolean scrollRight(boolean right)
   {
-    if(right)
-   {
-     if(hscroll.getValue()<1)
-       return false;
-     hscroll.setValue(hscroll.getValue() - 1);
-   }
-   else
-   {
-    if(hextent+hscroll.getValue() >= av.getAlignment().getWidth())
-      return false;
-     hscroll.setValue(hscroll.getValue() + 1);
-   }
 
-   return true;
- }
+    if (right)
+    {
+      if (hscroll.getValue() < 1)
+        return false;
+      fastPaint = false;
+      hscroll.setValue(hscroll.getValue() - 1);
+    }
+    else
+    {
+      if (hextent + hscroll.getValue() >= av.getAlignment().getWidth())
+        return false;
+      fastPaint = false;
+      hscroll.setValue(hscroll.getValue() + 1);
+    }
+    fastPaint = true;
+    return true;
+  }
 
 
   public void setScrollValues(int x, int y)
@@ -362,7 +371,7 @@ public class AlignmentPanel extends GAlignmentPanel implements AdjustmentListene
     if(overviewPanel!=null)
       overviewPanel.setBoxPosition();
 
-    if(av.getWrapAlignment())
+    if(av.getWrapAlignment() || !fastPaint)
       repaint();
     else
     {