JAL-3369 JAL-3253-applet adds embedded dim checking for overview frame
[jalview.git] / src / jalview / gui / OverviewCanvas.java
index 3ea5e9b..aafac38 100644 (file)
@@ -22,6 +22,7 @@ package jalview.gui;
 
 import jalview.api.AlignViewportI;
 import jalview.bin.Cache;
+import jalview.datamodel.AlignmentI;
 import jalview.renderer.OverviewRenderer;
 import jalview.renderer.OverviewResColourFinder;
 import jalview.viewmodel.OverviewDimensions;
@@ -31,9 +32,10 @@ import java.awt.Dimension;
 import java.awt.Graphics;
 import java.awt.image.BufferedImage;
 
-import javax.swing.JComponent;
+import javax.swing.JPanel;
 
-public class OverviewCanvas extends JComponent
+@SuppressWarnings("serial")
+public class OverviewCanvas extends JPanel
 {
   private static final Color TRANS_GREY = new Color(100, 100, 100, 25);
 
@@ -43,7 +45,7 @@ public class OverviewCanvas extends JComponent
 
   private volatile boolean updaterunning = false;
 
-  private BufferedImage miniMe;
+  private boolean disposed = false;
 
   private BufferedImage lastMiniMe = null;
 
@@ -59,15 +61,40 @@ public class OverviewCanvas extends JComponent
 
   private AlignViewportI av;
 
-  public OverviewCanvas(OverviewDimensions overviewDims,
-          AlignViewportI alignvp)
+  private OverviewResColourFinder cf;
+
+  private ProgressPanel progressPanel;
+
+  private boolean showSequenceFeatures;
+
+  private boolean showAnnotation;
+
+  private jalview.api.FeatureRenderer featureRenderer;
+
+  private OverviewPanel panel;
+
+  public OverviewCanvas(OverviewPanel panel,
+          OverviewDimensions overviewDims,
+          AlignViewportI alignvp, ProgressPanel pp)
   {
+    this.panel = panel;
     od = overviewDims;
     av = alignvp;
+    progressPanel = pp;
 
     sr = new SequenceRenderer(av);
     sr.renderGaps = false;
     fr = new jalview.renderer.seqfeatures.FeatureRenderer(av);
+
+    boolean useLegacy = Cache.getDefault(Preferences.USE_LEGACY_GAP, false);
+    Color gapCol = Cache.getDefaultColour(Preferences.GAP_COLOUR,
+            jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_GAP);
+    Color hiddenCol = Cache.getDefaultColour(Preferences.HIDDEN_COLOUR,
+            jalview.renderer.OverviewResColourFinder.OVERVIEW_DEFAULT_HIDDEN);
+    cf = new OverviewResColourFinder(useLegacy, gapCol, hiddenCol);
+
+    setSize(od.getWidth(), od.getHeight());
+    setPreferredSize(getSize()); // BH 2019.07.29 added
   }
 
   /**
@@ -91,11 +118,7 @@ public class OverviewCanvas extends JComponent
     {
       if (updaterunning)
       {
-        restart = true;
-        if (or != null)
-        {
-          or.setRedraw(true);
-        }
+        setRestart("restartDraw");
       }
       else
       {
@@ -105,6 +128,16 @@ public class OverviewCanvas extends JComponent
     }
   }
 
+  private void setRestart(String why)
+  {
+    // System.out.println("OC restart true " + why);
+    restart = true;
+    if (or != null)
+    {
+      or.setRedraw(true);
+    }
+  }
+
   /**
    * Draw the overview sequences
    * 
@@ -112,84 +145,166 @@ public class OverviewCanvas extends JComponent
    *          true if sequence features are to be shown
    * @param showAnnotation
    *          true if the annotation is to be shown
-   * @param transferRenderer
+   * @param featureRenderer
    *          the renderer to transfer feature colouring from
    */
   public void draw(boolean showSequenceFeatures, boolean showAnnotation,
-          FeatureRenderer transferRenderer)
+          jalview.api.FeatureRenderer featureRenderer)
   {
-    miniMe = null;
+    this.showSequenceFeatures = showSequenceFeatures;
+    this.showAnnotation = showAnnotation;
+    this.featureRenderer = featureRenderer;
+
+    // System.out.println("OC draw " + ++ndraw + " showseqf="
+    // + showSequenceFeatures + " showAnno=" + showAnnotation);
 
     if (showSequenceFeatures)
     {
-      fr.transferSettings(transferRenderer);
+      fr.transferSettings(featureRenderer);
     }
 
     setPreferredSize(new Dimension(od.getWidth(), od.getHeight()));
 
-    boolean useLegacy = Cache.getDefault("USE_LEGACY_GAP", false);
-    Color gapCol = Cache.getDefaultColour("GAP_COLOUR", new Color(240, 240, 240));
-    Color hiddenCol = Cache.getDefaultColour("HIDDEN_COLOUR", Color.DARK_GRAY.darker());
-    OverviewResColourFinder cf = new OverviewResColourFinder(useLegacy,
-            gapCol, hiddenCol);
-    or = new OverviewRenderer(fr, od, av.getAlignment(),
-            av.getResidueShading(), cf);
-    miniMe = or.draw(od.getRows(av.getAlignment()),
-            od.getColumns(av.getAlignment()));
+    AlignmentI al = av.getAlignment();
+    or = new OverviewRenderer(panel.ap, fr, od, al,
+            av.getResidueShading(), cf,
+            progressPanel != null);
+    if (progressPanel != null)
+    {
+      or.addPropertyChangeListener(progressPanel);
+    }
+    or.draw(od.getRows(al), od.getColumns(al));
+  }
 
+  void finalizeDraw(BufferedImage miniMe)
+  {
     Graphics mg = miniMe.getGraphics();
-
     if (showAnnotation)
     {
       mg.translate(0, od.getSequencesHeight());
       or.drawGraph(mg, av.getAlignmentConservationAnnotation(),
-              av.getCharWidth(), od.getGraphHeight(),
-              od.getColumns(av.getAlignment()));
+              od.getGraphHeight(), od.getColumns(av.getAlignment()));
       mg.translate(0, -od.getSequencesHeight());
     }
-    System.gc();
-
+    mg.dispose(); // BH 2019
+    if (progressPanel != null)
+    {
+      or.removePropertyChangeListener(progressPanel);
+    }
+    or = null;
     if (restart)
     {
       restart = false;
-      draw(showSequenceFeatures, showAnnotation, transferRenderer);
+      if (!disposed)
+      {
+        draw(showSequenceFeatures, showAnnotation, featureRenderer);
+      }
     }
     else
     {
       updaterunning = false;
       lastMiniMe = miniMe;
+      repaint();
     }
-  }
 
+  }
   @Override
   public void paintComponent(Graphics g)
   {
+
+    int w = getWidth();
+    int h = getHeight();
+    if (w == 0 || od.getBoxWidth() <= 0)
+    {
+      // BH 2019.07.27 removes two unnecessary paints, since boxwidth can be -1
+      // or 0 during early-stage painting
+      return;
+    }
+
+    boolean drawMe = (lastMiniMe != null);
     if (restart)
     {
-      if (lastMiniMe == null)
+      if (drawMe)
       {
-        g.setColor(Color.white);
-        g.fillRect(0, 0, getWidth(), getHeight());
+        g.drawImage(lastMiniMe, 0, 0, w, h, this);
       }
       else
       {
-        g.drawImage(lastMiniMe, 0, 0, getWidth(), getHeight(), this);
+        g.setColor(Color.white);
+        g.fillRect(0, 0, w, h);
       }
       g.setColor(TRANS_GREY);
-      g.fillRect(0, 0, getWidth(), getHeight());
+      g.fillRect(0, 0, w, h);
+      drawMe = false;
     }
-    else if (lastMiniMe != null)
+    else if (drawMe)
     {
-      g.drawImage(lastMiniMe, 0, 0, this);
-      if (lastMiniMe != miniMe)
+      // is this a resize?
+      if (w != od.getWidth() ||  h != od.getHeight()) {
+      // if there is annotation, scale the alignment and annotation
+      // separately
+      if (od.getGraphHeight() <= 0 && od.getSequencesHeight() <= 0)
       {
-        g.setColor(TRANS_GREY);
-        g.fillRect(0, 0, getWidth(), getHeight());
+        od.setWidth(w);
+        od.setHeight(h);
+        return;
+      }
+        // System.out.println("OC new subimages");
+      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(w);
+      od.setHeight(h);
+
+      // stick the images back together so lastMiniMe is consistent in the
+      // event of a repaint - BUT probably not thread safe
+      // System.out.println("OC new lastminime " + w + " " + h);
+      lastMiniMe = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
+      Graphics lg = lastMiniMe.getGraphics();
+      lg.drawImage(topImage, 0, 0, w, od.getSequencesHeight(), null);
+      lg.drawImage(bottomImage, 0, od.getSequencesHeight(), w,
+              od.getGraphHeight(), this);
+      lg.dispose();
+      // BH 2019: removed -- this is now taken care of using vpbox in
+      // OverviewDimension
+      // // make sure the box is in the right place
+      // od.setBoxPosition(av.getAlignment().getHiddenSequences(),
+      // av.getAlignment().getHiddenColumns());
       }
     }
 
+    if (drawMe)
+    {
+      g.drawImage(lastMiniMe, 0, 0, w, h, this);
+    }
+    // draw the box
     g.setColor(Color.red);
+    // System.out.println("OC paintComponent nd=" + ndraw + " nr=" + nrepaint
+    // + " np=" + ++npaint);
     od.drawBox(g);
   }
 
+  private int ndraw, npaint, nrepaint;
+
+  // @Override
+  // public void repaint()
+  // {
+  // System.out.println("OC repaint " + (++nrepaint));
+  // super.repaint();
+  // }
+
+  public void dispose()
+  {
+    disposed = true;
+    od = null;
+    synchronized (this)
+    {
+      setRestart("dispose");
+    }
+  }
+
 }