JAL-147 remove redundant calls to update overview panel

[jalview.git] / src / jalview / appletgui / ScalePanel.java

diff --git a/src/jalview/appletgui/ScalePanel.java b/src/jalview/appletgui/ScalePanel.java
index 2abd65a..1728101 100755 (executable)
--- a/src/jalview/appletgui/ScalePanel.java
+++ b/src/jalview/appletgui/ScalePanel.java
@@ -27,6 +27,7 @@ import jalview.renderer.ScaleRenderer;
 import jalview.renderer.ScaleRenderer.ScaleMark;
 import jalview.util.MessageManager;
 import jalview.viewmodel.ViewportListenerI;
+import jalview.viewmodel.ViewportRanges;
 
 import java.awt.Color;
 import java.awt.FontMetrics;
@@ -165,10 +166,6 @@ public class ScalePanel extends Panel implements MouseMotionListener,
           av.showColumn(reveal[0]);
           reveal = null;
           ap.paintAlignment(true);
-          if (ap.overviewPanel != null)
-          {
-            ap.overviewPanel.updateOverviewImage();
-          }
           av.sendSelection();
         }
       });
@@ -185,10 +182,6 @@ public class ScalePanel extends Panel implements MouseMotionListener,
             av.showAllHiddenColumns();
             reveal = null;
             ap.paintAlignment(true);
-            if (ap.overviewPanel != null)
-            {
-              ap.overviewPanel.updateOverviewImage();
-            }
             av.sendSelection();
           }
         });
@@ -215,10 +208,6 @@ public class ScalePanel extends Panel implements MouseMotionListener,
           }
 
           ap.paintAlignment(true);
-          if (ap.overviewPanel != null)
-          {
-            ap.overviewPanel.updateOverviewImage();
-          }
           av.sendSelection();
         }
       });
@@ -349,9 +338,15 @@ public class ScalePanel extends Panel implements MouseMotionListener,
   @Override
   public void paint(Graphics g)
   {
-    drawScale(g, av.getRanges().getStartRes(), av.getRanges().getEndRes(),
-            getSize().width,
-            getSize().height);
+    /*
+     * shouldn't get called in wrapped mode as the scale above is
+     * drawn instead by SeqCanvas.drawNorthScale
+     */
+    if (!av.getWrapAlignment())
+    {
+      drawScale(g, av.getRanges().getStartRes(),
+              av.getRanges().getEndRes(), getSize().width, getSize().height);
+    }
   }
 
   // scalewidth will normally be screenwidth,
@@ -464,7 +459,16 @@ public class ScalePanel extends Panel implements MouseMotionListener,
   public void propertyChange(PropertyChangeEvent evt)
   {
     // Respond to viewport change events (e.g. alignment panel was scrolled)
-    repaint();
+    // Both scrolling and resizing change viewport ranges: scrolling changes
+    // both start and end points, but resize only changes end values.
+    // Here we only want to fastpaint on a scroll, with resize using a normal
+    // paint, so scroll events are identified as changes to the horizontal or
+    // vertical start value.
+    if (evt.getPropertyName().equals(ViewportRanges.STARTRES))
+    {
+      // scroll event, repaint panel
+      repaint();
+    }
   }
 
 }