Merge branch 'bug/JAL-2865removeGC' into develop

[jalview.git] / src / jalview / gui / OverviewCanvas.java

diff --git a/src/jalview/gui/OverviewCanvas.java b/src/jalview/gui/OverviewCanvas.java
index 04e34cd..7994bf2 100644 (file)
--- a/src/jalview/gui/OverviewCanvas.java
+++ b/src/jalview/gui/OverviewCanvas.java
@@ -26,24 +26,15 @@ import jalview.renderer.OverviewRenderer;
 import jalview.renderer.OverviewResColourFinder;
 import jalview.viewmodel.OverviewDimensions;
 
-import java.awt.AlphaComposite;
 import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Graphics;
-import java.awt.Graphics2D;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
 import java.awt.image.BufferedImage;
 
 import javax.swing.JComponent;
-import javax.swing.Timer;
 
 public class OverviewCanvas extends JComponent
 {
-  private static final long RUNNING_TIME = 1000;
-
-  private static final int SPEED = 40;
-
   private static final Color TRANS_GREY = new Color(100, 100, 100, 25);
 
   // This is set true if the alignment view changes whilst
@@ -58,8 +49,6 @@ public class OverviewCanvas extends JComponent
 
   private BufferedImage lastMiniMe = null;
 
-  private BufferedImage veryLastMiniMe = null;
-
   // Can set different properties in this seqCanvas than
   // main visible SeqCanvas
   private SequenceRenderer sr;
@@ -72,15 +61,8 @@ public class OverviewCanvas extends JComponent
 
   private AlignViewportI av;
 
-
   private OverviewResColourFinder cf;
 
-  private float alpha = 0f;
-
-  private long startTime = -1;
-
-  private final Timer timer;
-
   private ProgressPanel progressPanel;
 
   public OverviewCanvas(OverviewDimensions overviewDims,
@@ -96,43 +78,12 @@ public class OverviewCanvas extends JComponent
 
     boolean useLegacy = Cache.getDefault(Preferences.USE_LEGACY_GAP, false);
     Color gapCol = Cache.getDefaultColour(Preferences.GAP_COLOUR,
-            Preferences.OVERVIEW_DEFAULT_GAP);
+            jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_GAP);
     Color hiddenCol = Cache.getDefaultColour(Preferences.HIDDEN_COLOUR,
-            Preferences.OVERVIEW_DEFAULT_HIDDEN);
+            jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_HIDDEN);
     cf = new OverviewResColourFinder(useLegacy, gapCol, hiddenCol);
 
     setSize(od.getWidth(), od.getHeight());
-
-    timer = new Timer(SPEED, new ActionListener()
-    {
-
-      @Override
-      public void actionPerformed(ActionEvent e)
-      {
-        if (startTime < 0)
-        {
-          startTime = System.currentTimeMillis();
-        }
-        else
-        {
-
-          long time = System.currentTimeMillis();
-          long duration = time - startTime;
-          if (duration >= RUNNING_TIME)
-          {
-            startTime = -1;
-            ((Timer) e.getSource()).stop();
-            alpha = 0f;
-          }
-          else
-          {
-            alpha = 1f - ((float) duration / (float) RUNNING_TIME);
-          }
-          repaint();
-        }
-      }
-    });
-
   }
 
   /**
@@ -184,7 +135,6 @@ public class OverviewCanvas extends JComponent
           FeatureRenderer transferRenderer)
   {
     miniMe = null;
-    veryLastMiniMe = lastMiniMe;
 
     if (showSequenceFeatures)
     {
@@ -211,7 +161,6 @@ public class OverviewCanvas extends JComponent
               od.getColumns(av.getAlignment()));
       mg.translate(0, -od.getSequencesHeight());
     }
-    System.gc();
 
     or.removePropertyChangeListener(progressPanel);
     or = null;
@@ -227,14 +176,14 @@ public class OverviewCanvas extends JComponent
     {
       updaterunning = false;
       lastMiniMe = miniMe;
-      alpha = 1f;
-      timer.start();
     }
   }
 
   @Override
   public void paintComponent(Graphics g)
   {
+    super.paintComponent(g);
+
     if (restart)
     {
       if (lastMiniMe == null)
@@ -256,7 +205,8 @@ public class OverviewCanvas extends JComponent
               && ((getWidth() != od.getWidth())
                       || (getHeight() != od.getHeight())))
       {
-        // if there is annotation, scale the alignment and annotation separately
+        // if there is annotation, scale the alignment and annotation
+        // separately
         if (od.getGraphHeight() > 0)
         {
           BufferedImage topImage = lastMiniMe.getSubimage(0, 0,
@@ -287,42 +237,24 @@ public class OverviewCanvas extends JComponent
           od.setHeight(getHeight());
         }
 
-        // scale lastMiniMe to the new size
-        g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
-
         // make sure the box is in the right place
         od.setBoxPosition(av.getAlignment().getHiddenSequences(),
                 av.getAlignment().getHiddenColumns());
       }
-      else // not a resize
-      {
-        if (alpha != 0) // this is a timer triggered dissolve
-        {
-          Graphics2D g2d = (Graphics2D) g.create();
-          
-          // draw the original image
-          g2d.drawImage(veryLastMiniMe, 0, 0, getWidth(), getHeight(),
-                  this);
-
-          // draw the new image on top with varying degrees of transparency
-          g2d.setComposite(AlphaComposite.SrcOver.derive(1f - alpha));
-          g2d.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
-
-          g2d.dispose();
-        }
-        else
-        {
-          // fall back to normal behaviour
-          g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
-        }
-      }
+      // fall back to normal behaviour
+      g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
     }
-
+    else
+    {
+      g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
+    }
+    
     // draw the box
     g.setColor(Color.red);
     od.drawBox(g);
   }
 
+
   public void dispose()
   {
     dispose = true;