From c3162a6dd5f226c743bce629cf125a17c9b67711 Mon Sep 17 00:00:00 2001
From: amwaterhouse <Andrew Waterhouse>
Date: Thu, 7 Apr 2005 11:34:45 +0000
Subject: [PATCH] fastPaint flag added

---
 src/jalview/gui/AnnotationPanel.java |   11 ++++++++++-
 src/jalview/gui/IdCanvas.java        |   25 +++++++++++++++----------
 src/jalview/gui/SeqCanvas.java       |   32 ++++++++++++++++++--------------
 3 files changed, 43 insertions(+), 25 deletions(-)

diff --git a/src/jalview/gui/AnnotationPanel.java b/src/jalview/gui/AnnotationPanel.java
index 5c6bcf4..f14b199 100755
--- a/src/jalview/gui/AnnotationPanel.java
+++ b/src/jalview/gui/AnnotationPanel.java
@@ -29,6 +29,7 @@ public class AnnotationPanel extends JPanel implements MouseListener, MouseMotio
   FontMetrics fm;
   int imgWidth=0;
 
+  boolean fastPaint = false;
 
 
 
@@ -320,6 +321,13 @@ public class AnnotationPanel extends JPanel implements MouseListener, MouseMotio
     g.setColor(Color.white);
     g.fillRect(0,0,getWidth(), getHeight());
 
+    if(fastPaint)
+    {
+      g.drawImage(image, 0, 0, this);
+      fastPaint = false;
+      return;
+    }
+
     imgWidth = (av.endRes-av.startRes+1) *av.charWidth;
 
     image = new BufferedImage(imgWidth,
@@ -366,7 +374,8 @@ public class AnnotationPanel extends JPanel implements MouseListener, MouseMotio
 
   gg.translate( -transX, 0 );
 
-  getGraphics().drawImage(image, 0, 0, this);
+  fastPaint = true;
+  repaint();
 }
 
 
diff --git a/src/jalview/gui/IdCanvas.java b/src/jalview/gui/IdCanvas.java
index cb7fddf..959c83c 100755
--- a/src/jalview/gui/IdCanvas.java
+++ b/src/jalview/gui/IdCanvas.java
@@ -17,6 +17,7 @@ public class IdCanvas extends JPanel
   BufferedImage image;
   Graphics2D gg;
   int imgHeight=0;
+  boolean fastPaint = false;
 
   public IdCanvas(AlignViewport av)
   {
@@ -49,11 +50,8 @@ public class IdCanvas extends JPanel
 
   public void fastPaint(int vertical)
   {
-    if(image==null)
-    {
-      repaint();
-      return;
-    }
+    if(gg==null)
+    {  repaint(); return;}
 
     gg.copyArea( 0,0, getWidth(), imgHeight, 0, -vertical*av.charHeight );
 
@@ -75,11 +73,22 @@ public class IdCanvas extends JPanel
         gg.translate( 0, -transY );
 
 
-    getGraphics().drawImage(image, 0, 0, this);
+      fastPaint = true;
+      repaint();
   }
 
   public void paintComponent(Graphics g)
   {
+    g.setColor(Color.white);
+    g.fillRect(0, 0, getWidth(), getHeight());
+
+    if (fastPaint)
+    {
+      g.drawImage(image, 0, 0, this);
+      fastPaint = false;
+      return;
+    }
+
     imgHeight = getHeight();
     imgHeight -= imgHeight % av.charHeight;
     image = new BufferedImage(getWidth(), imgHeight, BufferedImage.TYPE_INT_RGB);
@@ -93,10 +102,6 @@ public class IdCanvas extends JPanel
                            av.getFont().getSize());
     gg.setFont(italic);
 
-
-    g.setColor(Color.white);
-    g.fillRect(0,0,getWidth(),getHeight());
-
     drawIds( av.getStartSeq(), av.endSeq);
 
     g.drawImage(image, 0, 0, this);
diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index ff9488e..c6ecff2 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -16,7 +16,7 @@ public class SeqCanvas extends JPanel
 
     AlignViewport     av;
 
-    public boolean paintFlag = false;
+ //   public boolean paintFlag = false;
 
     boolean showScores = false;
     boolean displaySearch = false;
@@ -25,6 +25,8 @@ public class SeqCanvas extends JPanel
     int chunkHeight;
     int chunkWidth;
 
+    boolean fastPaint = false;
+
 
     public SeqCanvas(AlignViewport av)
     {
@@ -58,12 +60,6 @@ public void fastPaint(int horizontal, int vertical)
     if (horizontal == 0 && vertical == 0)
       return;
 
-    if (img == null || paintFlag)
-    {
-      repaint();
-      return;
-    }
-
     gg.copyArea(0, 0, imgWidth, imgHeight, -horizontal * av.charWidth,
                 -vertical * av.charHeight);
 
@@ -90,7 +86,9 @@ public void fastPaint(int horizontal, int vertical)
     drawPanel(gg, sr, er, ss, es, sr, ss, 0);
 
     gg.translate( -transX, -transY);
-    getGraphics().drawImage(img, 0, 0, this);
+
+    fastPaint = true;
+    repaint();
 
 }
 
@@ -107,6 +105,16 @@ public void fastPaint(int horizontal, int vertical)
 
   public void paintComponent(Graphics g)
   {
+    g.setColor(Color.white);
+    g.fillRect(0, 0, getWidth(), getHeight());
+
+    if (fastPaint)
+    {
+      g.drawImage(img, 0, 0, this);
+      fastPaint = false;
+      return;
+    }
+
     // this draws the whole of the alignment
       imgWidth  = getWidth();
       imgHeight = getHeight();
@@ -118,7 +126,6 @@ public void fastPaint(int horizontal, int vertical)
       gg  = (Graphics2D)img.getGraphics();
       gg.setFont(av.getFont());
       gg.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
-      paintFlag = false;
 
       gg.setColor(Color.white);
       gg.fillRect(0,0,imgWidth,imgHeight);
@@ -135,9 +142,7 @@ public void fastPaint(int horizontal, int vertical)
     else
       drawPanel(gg, av.startRes, av.endRes, av.startSeq, av.endSeq, av.startRes, av.startSeq, 0);
 
-    g.setColor(Color.white);
-    g.fillRect(0,0,getWidth(),getHeight());
-    g.drawImage(img,0,0,this);
+    g.drawImage(img, 0, 0, this);
 
   }
 
@@ -259,7 +264,7 @@ public void fastPaint(int horizontal, int vertical)
 
             if (bottom == -1 &&
                 !group.sequences.contains(av.alignment.getSequenceAt(i + 1)))
-              bottom = sy + av.charHeight - 1;
+              bottom = sy + av.charHeight -1;
 
             if (!inGroup)
             {
@@ -364,7 +369,6 @@ public void fastPaint(int horizontal, int vertical)
 
     searchResults = results;
 
-    paintFlag = true;
     repaint();
   }
 
-- 
1.7.10.2