JAL-2491 First port to applet

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

diff --git a/src/jalview/appletgui/IdCanvas.java b/src/jalview/appletgui/IdCanvas.java
index 5c6e510..cad5de5 100755 (executable)
--- a/src/jalview/appletgui/IdCanvas.java
+++ b/src/jalview/appletgui/IdCanvas.java
@@ -1,6 +1,6 @@
 /*
- * Jalview - A Sequence Alignment Editor and Viewer (Version 2.9.0b2)
- * Copyright (C) 2015 The Jalview Authors
+ * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
+ * Copyright (C) $$Year-Rel$$ The Jalview Authors
  * 
  * This file is part of Jalview.
  * 
@@ -21,15 +21,18 @@
 package jalview.appletgui;
 
 import jalview.datamodel.SequenceI;
+import jalview.viewmodel.ViewportListenerI;
+import jalview.viewmodel.ViewportRanges;
 
 import java.awt.Color;
 import java.awt.Font;
 import java.awt.Graphics;
 import java.awt.Image;
 import java.awt.Panel;
+import java.beans.PropertyChangeEvent;
 import java.util.List;
 
-public class IdCanvas extends Panel
+public class IdCanvas extends Panel implements ViewportListenerI
 {
   protected AlignViewport av;
 
@@ -54,6 +57,7 @@ public class IdCanvas extends Panel
     setLayout(null);
     this.av = av;
     PaintRefresher.Register(this, av.getSequenceSetId());
+    av.getRanges().addPropertyChangeListener(this);
   }
 
   public void drawIdString(Graphics gg, boolean hiddenRows, SequenceI s,
@@ -103,28 +107,32 @@ public class IdCanvas extends Panel
       return;
     }
 
+    ViewportRanges ranges = av.getRanges();
+
     gg.copyArea(0, 0, getSize().width, imgHeight, 0,
             -vertical * av.getCharHeight());
 
-    int ss = av.startSeq, es = av.endSeq, transY = 0;
+    int ss = ranges.getStartSeq(), es = ranges.getEndSeq(), transY = 0;
     if (vertical > 0) // scroll down
     {
       ss = es - vertical;
-      if (ss < av.startSeq) // ie scrolling too fast, more than a page at a time
+      if (ss < ranges.getStartSeq()) // ie scrolling too fast, more than a page
+                                     // at a
+                                 // time
       {
-        ss = av.startSeq;
+        ss = ranges.getStartSeq();
       }
       else
       {
-        transY = imgHeight - vertical * av.getCharHeight();
+        transY = imgHeight - ((vertical + 1) * av.getCharHeight());
       }
     }
     else if (vertical < 0)
     {
       es = ss - vertical;
-      if (es > av.endSeq)
+      if (es > ranges.getEndSeq())
       {
-        es = av.endSeq;
+        es = ranges.getEndSeq();
       }
     }
 
@@ -138,11 +146,13 @@ public class IdCanvas extends Panel
     repaint();
   }
 
+  @Override
   public void update(Graphics g)
   {
     paint(g);
   }
 
+  @Override
   public void paint(Graphics g)
   {
     if (getSize().height < 0 || getSize().width < 0)
@@ -178,7 +188,7 @@ public class IdCanvas extends Panel
     gg.setFont(italic);
 
     gg.fillRect(0, 0, getSize().width, getSize().height);
-    drawIds(av.startSeq, av.endSeq);
+    drawIds(av.getRanges().getStartSeq(), av.getRanges().getEndSeq());
     g.drawImage(image, 0, 0, this);
   }
 
@@ -231,9 +241,10 @@ public class IdCanvas extends Panel
 
       int cHeight = alheight * avcharHeight + hgap + annotationHeight;
 
-      int rowSize = av.getEndRes() - av.getStartRes();
+      int rowSize = av.getRanges().getEndRes()
+              - av.getRanges().getStartRes();
       // Draw the rest of the panels
-      for (int ypos = hgap, row = av.startRes; (ypos <= getSize().height)
+      for (int ypos = hgap, row = av.getRanges().getStartRes(); (ypos <= getSize().height)
               && (row < maxwidth); ypos += cHeight, row += rowSize)
       {
         for (int i = starty; i < alheight; i++)
@@ -261,7 +272,7 @@ public class IdCanvas extends Panel
     {
       // Now draw the id strings
       SequenceI seq;
-      for (int i = starty; i < endy; i++)
+      for (int i = starty; i <= endy; i++)
       {
 
         seq = av.getAlignment().getSequenceAt(i);
@@ -378,11 +389,22 @@ public class IdCanvas extends Panel
     Font bold = new Font(av.getFont().getName(), Font.BOLD, av.getFont()
             .getSize());
 
-    if (av.isHiddenRepSequence(seq))
+    if (av.isReferenceSeq(seq) || av.isHiddenRepSequence(seq))
     {
       gg.setFont(bold);
       return true;
     }
     return false;
   }
+
+  @Override
+  public void propertyChange(PropertyChangeEvent evt)
+  {
+    // Respond to viewport range changes (e.g. alignment panel was scrolled)
+    if (evt.getPropertyName().equals("startseq")
+            || evt.getPropertyName().equals("endseq"))
+    {
+      fastPaint((int) evt.getNewValue() - (int) evt.getOldValue());
+    }
+  }
 }