From 4670e8f75896a4b6e2288d94ef48755e46b696c8 Mon Sep 17 00:00:00 2001
From: gmungoc <g.m.carstairs@dundee.ac.uk>
Date: Tue, 1 Aug 2017 16:48:30 +0200
Subject: [PATCH] JAL-2609 white fill vertical scale before fast paint,
 corrected endres

---
 src/jalview/gui/SeqCanvas.java |   29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index 5796b63..9bab774 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -219,19 +219,25 @@ public class SeqCanvas extends JComponent implements ViewportListenerI
       if (value != -1)
       {
         /*
-         * draw scale value, justified, with half a character width
+         * white fill the space for the scale
+         */
+        g.setColor(Color.white);
+        int y = (ypos + (i * charHeight)) - (charHeight / 5);
+        y -= charHeight; // fillRect: origin is top left of rectangle
+        int xpos = left ? 0 : getWidth() - labelWidthEast;
+        g.fillRect(xpos, y, left ? labelWidthWest : labelWidthEast,
+                charHeight + 1);
+        y += charHeight; // drawString: origin is bottom left of text
+
+        /*
+         * draw scale value, right justified, with half a character width
          * separation from the sequence data
          */
         String valueAsString = String.valueOf(value);
         int justify = fm.stringWidth(valueAsString) + charWidth;
-        int xpos = left ? labelWidthWest - justify + charWidth / 2
+        xpos = left ? labelWidthWest - justify + charWidth / 2
                 : getWidth() - justify - charWidth / 2;
 
-        g.setColor(Color.white);
-        int y = (ypos + (i * charHeight)) - (charHeight / 5);
-        y -= charHeight; // fillRect starts from top right of rectangle
-        g.fillRect(xpos, y, justify - charWidth, charHeight + 1);
-        y += charHeight; // drawString starts from bottom right of text
         g.setColor(Color.black);
         g.drawString(valueAsString, xpos, y);
       }
@@ -515,6 +521,9 @@ public class SeqCanvas extends JComponent implements ViewportListenerI
   }
 
   /**
+   * Draws one width of a wrapped alignment, including scales left, right or
+   * above, and annnotations, if shown
+   * 
    * @param g
    * @param startRes
    * @param canvasHeight
@@ -1410,11 +1419,13 @@ public class SeqCanvas extends JComponent implements ViewportListenerI
 
         if (av.getScaleLeftWrapped())
         {
-          drawVerticalScale(gg, xpos, xpos + viewportWidth, y + hgap, true);
+          drawVerticalScale(gg, xpos, xpos + viewportWidth - 1, y + hgap,
+                  true);
         }
         if (av.getScaleRightWrapped())
         {
-          drawVerticalScale(gg, xpos, xpos + viewportWidth, y + hgap, false);
+          drawVerticalScale(gg, xpos, xpos + viewportWidth - 1, y + hgap,
+                  false);
         }
 
         y -= repeatHeight;
-- 
1.7.10.2