JAL-2587 Adjusting height for progress bar
[jalview.git] / src / jalview / gui / OverviewCanvas.java
index 05db6c2..e49fd19 100644 (file)
@@ -24,15 +24,23 @@ import jalview.api.AlignViewportI;
 import jalview.renderer.OverviewRenderer;
 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 = 2000;
+
+  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
@@ -45,6 +53,8 @@ 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;
@@ -53,18 +63,61 @@ public class OverviewCanvas extends JComponent
 
   private OverviewDimensions od;
 
+  private OverviewRenderer or = null;
+
   private AlignViewportI av;
 
+  private float alpha = 0f;
+
+  private long startTime = -1;
+
+  private final Timer timer;
+
+  private ProgressPanel progressPanel;
+
   public OverviewCanvas(OverviewDimensions overviewDims,
-          AlignViewportI alignvp)
+          AlignViewportI alignvp, ProgressPanel pp)
   {
     od = overviewDims;
     av = alignvp;
+    progressPanel = pp;
 
     sr = new SequenceRenderer(av);
     sr.renderGaps = false;
     sr.forOverview = true;
     fr = new jalview.renderer.seqfeatures.FeatureRenderer(av);
+
+    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();
+        }
+      }
+    });
   }
 
   /**
@@ -89,6 +142,10 @@ public class OverviewCanvas extends JComponent
       if (updaterunning)
       {
         restart = true;
+        if (or != null)
+        {
+          or.setRedraw(true);
+        }
       }
       else
       {
@@ -111,18 +168,21 @@ public class OverviewCanvas extends JComponent
   public void draw(boolean showSequenceFeatures, boolean showAnnotation,
           FeatureRenderer transferRenderer)
   {
+    // System.out.println(this.getHeight());
+    // setPreferredSize(new Dimension(od.getWidth(), od.getHeight()));
+
     miniMe = null;
+    veryLastMiniMe = lastMiniMe;
 
     if (showSequenceFeatures)
     {
       fr.transferSettings(transferRenderer);
     }
 
-    setPreferredSize(new Dimension(od.getWidth(), od.getHeight()));
-
-    OverviewRenderer or = new OverviewRenderer(sr, fr, od);
+    or = new OverviewRenderer(sr, fr, od);
+    or.addPropertyChangeListener(progressPanel);
     miniMe = or.draw(od.getRows(av.getAlignment()),
-            od.getColumns(av.getAlignment().getHiddenColumns()));
+            od.getColumns(av.getAlignment()));
 
     Graphics mg = miniMe.getGraphics();
 
@@ -131,11 +191,12 @@ public class OverviewCanvas extends JComponent
       mg.translate(0, od.getSequencesHeight());
       or.drawGraph(mg, av.getAlignmentConservationAnnotation(),
               av.getCharWidth(), od.getGraphHeight(),
-              od.getColumns(av.getAlignment().getHiddenColumns()));
+              od.getColumns(av.getAlignment()));
       mg.translate(0, -od.getSequencesHeight());
     }
     System.gc();
 
+    or.removePropertyChangeListener(progressPanel);
     if (restart)
     {
       restart = false;
@@ -145,12 +206,15 @@ public class OverviewCanvas extends JComponent
     {
       updaterunning = false;
       lastMiniMe = miniMe;
+      alpha = 1f;
+      timer.start();
     }
   }
 
   @Override
   public void paintComponent(Graphics g)
   {
+
     if (restart)
     {
       if (lastMiniMe == null)
@@ -167,16 +231,85 @@ public class OverviewCanvas extends JComponent
     }
     else if (lastMiniMe != null)
     {
-      g.drawImage(lastMiniMe, 0, 0, this);
-      if (lastMiniMe != miniMe)
+      if ((getWidth() > 0) && (getHeight() > 0)
+              && ((getWidth() != od.getWidth())
+                      || (getHeight() != od.getHeight())))
       {
-        g.setColor(TRANS_GREY);
-        g.fillRect(0, 0, getWidth(), getHeight());
+        // scale the alignment and annotation separately *** if there is
+        // annotation ***
+        if (od.getGraphHeight() > 0)
+        {
+          BufferedImage topImage = lastMiniMe.getSubimage(0, 0,
+                  od.getWidth(), od.getSequencesHeight());
+          BufferedImage bottomImage = lastMiniMe.getSubimage(0,
+                  od.getSequencesHeight(), od.getWidth(),
+                  od.getGraphHeight());
+
+          // must be done at this point as we rely on using old width/height
+          // above, and new width/height below
+          od.setWidth(getWidth());
+          od.setHeight(getHeight());
+
+          // stick the images back together so lastMiniMe is consistent in the
+          // event of a repaint - BUT probably not thread safe
+          lastMiniMe = new BufferedImage(od.getWidth(), od.getHeight(),
+                  BufferedImage.TYPE_INT_RGB);
+          Graphics lg = lastMiniMe.getGraphics();
+          lg.drawImage(topImage, 0, 0, od.getWidth(),
+                  od.getSequencesHeight(), null);
+          lg.drawImage(bottomImage, 0, od.getSequencesHeight(),
+                  od.getWidth(), od.getGraphHeight(), this);
+          lg.dispose();
+        }
+        else
+        {
+          System.out.println("Resetting height from/to: " + od.getHeight()
+                  + " " + getHeight());
+          od.setWidth(getWidth());
+          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
+      {
+        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 if (lastMiniMe != miniMe)
+        {
+          g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
+          g.setColor(TRANS_GREY);
+          g.fillRect(0, 0, getWidth(), getHeight());
+        }*/
+        else
+        {
+          // fall back to normal behaviour
+          g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
+        }
+
+      }
+
     }
 
+    // draw the box
     g.setColor(Color.red);
     od.drawBox(g);
   }
-
 }