From: amwaterhouse <Andrew Waterhouse>
Date: Tue, 25 Jul 2006 12:57:48 +0000 (+0000)
Subject: Dont make new image unless resize
X-Git-Tag: Release_2_1~215
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=6abefac67f193512eb944881446b206f891be06e;p=jalview.git

Dont make new image unless resize
---

diff --git a/src/jalview/gui/IdCanvas.java b/src/jalview/gui/IdCanvas.java
index 5959493..d35a0f4 100755
--- a/src/jalview/gui/IdCanvas.java
+++ b/src/jalview/gui/IdCanvas.java
@@ -173,6 +173,8 @@ public class IdCanvas extends JPanel
             return;
         }
 
+        int oldHeight = imgHeight;
+
         imgHeight = getHeight();
         imgHeight -= (imgHeight % av.charHeight);
 
@@ -181,15 +183,17 @@ public class IdCanvas extends JPanel
             return;
         }
 
-        image = new BufferedImage(getWidth(), imgHeight,
-                BufferedImage.TYPE_INT_RGB);
-        gg = (Graphics2D) image.getGraphics();
+        if(oldHeight!=imgHeight)
+        {
+          image = new BufferedImage(getWidth(), imgHeight,
+                                    BufferedImage.TYPE_INT_RGB);
+          gg = (Graphics2D) image.getGraphics();
+        }
 
         //Fill in the background
         gg.setColor(Color.white);
         gg.fillRect(0, 0, getWidth(), imgHeight);
 
-
         drawIds(av.getStartSeq(), av.endSeq);
 
         g.drawImage(image, 0, 0, this);