From 5fd892e32ce50ece7c2a626a42c23a0be00ab10a Mon Sep 17 00:00:00 2001
From: Jim Procter <j.procter@dundee.ac.uk>
Date: Wed, 23 Mar 2022 13:20:28 +0000
Subject: [PATCH] JAL-3781 - EXPERIMENT - NEEDS RECODING - DEMO THAT HIGHER
 RESOLUTION RESIDUES CAN BE RENDERED IN JAVA 8 AND JAVA 11

---
 src/jalview/gui/SeqCanvas.java |   19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index ac7cf10..4fcd934 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -40,6 +40,7 @@ import java.awt.Graphics;
 import java.awt.Graphics2D;
 import java.awt.Rectangle;
 import java.awt.RenderingHints;
+import java.awt.geom.AffineTransform;
 import java.awt.image.BufferedImage;
 import java.beans.PropertyChangeEvent;
 import java.util.Iterator;
@@ -330,7 +331,7 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
         }
         else
         {
-          transY = img.getHeight() - ((vertical + 1) * charHeight);
+          transY = ((int)0.5*img.getHeight()) - ((vertical + 1) * charHeight);
         }
       }
       else if (vertical < 0)
@@ -348,9 +349,10 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
       // + " " + startSeq + " " + endSeq);
 
       Graphics gg = img.getGraphics();
-      gg.copyArea(horizontal * charWidth, vertical * charHeight,
-              img.getWidth(), img.getHeight(), -horizontal * charWidth,
+      gg.copyArea(2*horizontal * charWidth, 2*vertical * charHeight,
+              img.getWidth(), img.getHeight(), -2*horizontal * charWidth,
               -vertical * charHeight);
+      
 
       /** @j2sNative xxi = this.img */
 
@@ -417,7 +419,9 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
     // {
     // fastPaint = false;
     // }
-
+    Graphics2D g2g = (Graphics2D) g;
+    g2g.scale(0.5,0.5);
+    
     Rectangle vis, clip;
     if (img != null
             && (fastPaint
@@ -438,10 +442,11 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
       if (img == null || width != img.getWidth()
               || height != img.getHeight())
       {
-        img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
+        img = new BufferedImage(2*width, 2*height, BufferedImage.TYPE_INT_RGB);
       }
 
       Graphics2D gg = (Graphics2D) img.getGraphics();
+      gg.scale(2,2);
       gg.setFont(av.getFont());
 
       if (av.antiAlias)
@@ -463,7 +468,8 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
       }
 
       drawSelectionGroup(gg, startRes, endRes, startSeq, endSeq);
-
+//      java.awt.geom.AffineTransform tr = ((Graphics2D) g).getDeviceConfiguration().getNormalizingTransform();
+      
       g.drawImage(img, 0, 0, this);
       gg.dispose();
     }
@@ -472,6 +478,7 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
     {
       drawCursor(g, startRes, endRes, startSeq, endSeq);
     }
+    g2g.scale(2,2);
   }
 
   /**
-- 
1.7.10.2