Merge branch 'develop' into features/JAL-2446NCList
[jalview.git] / src / jalview / ext / rbvi / chimera / ChimeraCommands.java
index a5ee933..dad8511 100644 (file)
  */
 package jalview.ext.rbvi.chimera;
 
+import jalview.api.AlignViewportI;
+import jalview.api.AlignmentViewPanel;
 import jalview.api.FeatureRenderer;
 import jalview.api.SequenceRenderer;
 import jalview.datamodel.AlignmentI;
+import jalview.datamodel.HiddenColumns;
 import jalview.datamodel.SequenceFeature;
 import jalview.datamodel.SequenceI;
+import jalview.renderer.seqfeatures.FeatureColourFinder;
 import jalview.structure.StructureMapping;
 import jalview.structure.StructureMappingcommandSet;
 import jalview.structure.StructureSelectionManager;
@@ -38,8 +42,6 @@ import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 
-import MCview.PDBChain;
-
 /**
  * Routines for generating Chimera commands for Jalview/Chimera binding
  * 
@@ -49,20 +51,26 @@ import MCview.PDBChain;
 public class ChimeraCommands
 {
 
+  public static final String NAMESPACE_PREFIX = "jv_";
+
   /**
-   * utility to construct the commands to colour chains by the given alignment
-   * for passing to Chimera
-   * 
-   * @returns Object[] { Object[] { <model being coloured>,
+   * Constructs Chimera commands to colour residues as per the Jalview alignment
    * 
+   * @param ssm
+   * @param files
+   * @param sequence
+   * @param sr
+   * @param fr
+   * @param viewPanel
+   * @return
    */
-  public static StructureMappingcommandSet getColourBySequenceCommand(
+  public static StructureMappingcommandSet[] getColourBySequenceCommand(
           StructureSelectionManager ssm, String[] files,
-          SequenceI[][] sequence, SequenceRenderer sr, FeatureRenderer fr,
-          AlignmentI alignment)
+          SequenceI[][] sequence, SequenceRenderer sr,
+          AlignmentViewPanel viewPanel)
   {
-    Map<Object, AtomSpecModel> colourMap = buildColoursMap(
-            ssm, files, sequence, sr, fr, alignment);
+    Map<Object, AtomSpecModel> colourMap = buildColoursMap(ssm, files,
+            sequence, sr, viewPanel);
 
     List<String> colourCommands = buildColourCommands(colourMap);
 
@@ -70,7 +78,7 @@ public class ChimeraCommands
             ChimeraCommands.class, null,
             colourCommands.toArray(new String[colourCommands.size()]));
 
-    return cs;
+    return new StructureMappingcommandSet[] { cs };
   }
 
   /**
@@ -109,8 +117,7 @@ public class ChimeraCommands
       }
       sb.append("color ").append(colourCode).append(" ");
       firstColour = false;
-      final AtomSpecModel colourData = colourMap
-              .get(colour);
+      final AtomSpecModel colourData = colourMap.get(colour);
       sb.append(colourData.getAtomSpec());
     }
     commands.add(sb.toString());
@@ -170,9 +177,8 @@ public class ChimeraCommands
 
   /**
    * <pre>
-   * Build a data structure which maps contiguous subsequences for each colour. 
-   * This generates a data structure from which we can easily generate the 
-   * Chimera command for colour by sequence.
+   * Build a data structure which records contiguous subsequences for each colour. 
+   * From this we can easily generate the Chimera command for colour by sequence.
    * Color
    *     Model number
    *         Chain
@@ -182,11 +188,17 @@ public class ChimeraCommands
    */
   protected static Map<Object, AtomSpecModel> buildColoursMap(
           StructureSelectionManager ssm, String[] files,
-          SequenceI[][] sequence, SequenceRenderer sr, FeatureRenderer fr,
-          AlignmentI alignment)
+          SequenceI[][] sequence, SequenceRenderer sr,
+          AlignmentViewPanel viewPanel)
   {
+    FeatureRenderer fr = viewPanel.getFeatureRenderer();
+    FeatureColourFinder finder = new FeatureColourFinder(fr);
+    AlignViewportI viewport = viewPanel.getAlignViewport();
+    HiddenColumns cs = viewport.getAlignment().getHiddenColumns();
+    AlignmentI al = viewport.getAlignment();
     Map<Object, AtomSpecModel> colourMap = new LinkedHashMap<Object, AtomSpecModel>();
     Color lastColour = null;
+
     for (int pdbfnum = 0; pdbfnum < files.length; pdbfnum++)
     {
       StructureMapping[] mapping = ssm.getMapping(files[pdbfnum]);
@@ -204,9 +216,9 @@ public class ChimeraCommands
         {
           final SequenceI seq = sequence[pdbfnum][s];
           if (mapping[m].getSequence() == seq
-                  && (sp = alignment.findIndex(seq)) > -1)
+                  && (sp = al.findIndex(seq)) > -1)
           {
-            SequenceI asp = alignment.getSequenceAt(sp);
+            SequenceI asp = al.getSequenceAt(sp);
             for (int r = 0; r < asp.getLength(); r++)
             {
               // no mapping to gaps in sequence
@@ -221,7 +233,16 @@ public class ChimeraCommands
                 continue;
               }
 
-              Color colour = sr.getResidueColour(seq, r, fr);
+              Color colour = sr.getResidueColour(seq, r, finder);
+
+              /*
+               * darker colour for hidden regions
+               */
+              if (!cs.isVisible(r))
+              {
+                colour = Color.GRAY;
+              }
+
               final String chain = mapping[m].getChain();
 
               /*
@@ -236,7 +257,7 @@ public class ChimeraCommands
               {
                 if (startPos != -1)
                 {
-                  addRange(colourMap, lastColour, pdbfnum, startPos,
+                  addColourRange(colourMap, lastColour, pdbfnum, startPos,
                           lastPos, lastChain);
                 }
                 startPos = pos;
@@ -248,7 +269,7 @@ public class ChimeraCommands
             // final colour range
             if (lastColour != null)
             {
-              addRange(colourMap, lastColour, pdbfnum, startPos,
+              addColourRange(colourMap, lastColour, pdbfnum, startPos,
                       lastPos, lastChain);
             }
             // break;
@@ -269,7 +290,7 @@ public class ChimeraCommands
    * @param endPos
    * @param chain
    */
-  protected static void addRange(Map<Object, AtomSpecModel> map,
+  protected static void addColourRange(Map<Object, AtomSpecModel> map,
           Object key, int model, int startPos, int endPos, String chain)
   {
     /*
@@ -286,22 +307,22 @@ public class ChimeraCommands
   }
 
   /**
-   * Constructs and returns a set of Chimera commands to set attributes on
-   * residues corresponding to features in Jalview
+   * Constructs and returns Chimera commands to set attributes on residues
+   * corresponding to features in Jalview. Attribute names are the Jalview
+   * feature type, with a "jv_" prefix.
    * 
    * @param ssm
    * @param files
    * @param seqs
-   * @param fr
-   * @param alignment
+   * @param viewPanel
    * @return
    */
   public static StructureMappingcommandSet getSetAttributeCommandsForFeatures(
-          StructureSelectionManager ssm, String[] files,
-          SequenceI[][] seqs, FeatureRenderer fr, AlignmentI alignment)
+          StructureSelectionManager ssm, String[] files, SequenceI[][] seqs,
+          AlignmentViewPanel viewPanel)
   {
     Map<String, Map<Object, AtomSpecModel>> featureMap = buildFeaturesMap(
-            ssm, files, seqs, fr, alignment);
+            ssm, files, seqs, viewPanel);
 
     List<String> commands = buildSetAttributeCommands(featureMap);
 
@@ -321,22 +342,28 @@ public class ChimeraCommands
    * @param ssm
    * @param files
    * @param seqs
-   * @param fr
-   * @param alignment
+   * @param viewPanel
    * @return
    */
   protected static Map<String, Map<Object, AtomSpecModel>> buildFeaturesMap(
-          StructureSelectionManager ssm, String[] files,
-          SequenceI[][] seqs, FeatureRenderer fr, AlignmentI alignment)
+          StructureSelectionManager ssm, String[] files, SequenceI[][] seqs,
+          AlignmentViewPanel viewPanel)
   {
     Map<String, Map<Object, AtomSpecModel>> theMap = new LinkedHashMap<String, Map<Object, AtomSpecModel>>();
 
+    FeatureRenderer fr = viewPanel.getFeatureRenderer();
+    if (fr == null)
+    {
+      return theMap;
+    }
+
     List<String> visibleFeatures = fr.getDisplayedFeatureTypes();
     if (visibleFeatures.isEmpty())
     {
       return theMap;
     }
-    
+
+    AlignmentI alignment = viewPanel.getAlignment();
     for (int pdbfnum = 0; pdbfnum < files.length; pdbfnum++)
     {
       StructureMapping[] mapping = ssm.getMapping(files[pdbfnum]);
@@ -384,16 +411,19 @@ public class ChimeraCommands
           StructureMapping mapping, SequenceI seq,
           Map<String, Map<Object, AtomSpecModel>> theMap, int modelNumber)
   {
-    SequenceFeature[] sfs = seq.getSequenceFeatures();
-    if (sfs == null)
-    {
-      return;
-    }
-
+    List<SequenceFeature> sfs = seq.getFeatures().getPositionalFeatures(
+            visibleFeatures.toArray(new String[visibleFeatures.size()]));
     for (SequenceFeature sf : sfs)
     {
       String type = sf.getType();
-      if (!visibleFeatures.contains(type) || suppressFeature(type))
+
+      /*
+       * Only copy visible features, don't copy any which originated
+       * from Chimera, and suppress uninteresting ones (e.g. RESNUM)
+       */
+      boolean isFromViewer = JalviewChimeraBinding.CHIMERA_FEATURE_GROUP
+              .equals(sf.getFeatureGroup());
+      if (isFromViewer)
       {
         continue;
       }
@@ -403,12 +433,12 @@ public class ChimeraCommands
       if (!mappedRanges.isEmpty())
       {
         String value = sf.getDescription();
-        if (value == null)
+        if (value == null || value.length() == 0)
         {
           value = type;
         }
         float score = sf.getScore();
-        if (score != 0f && score != Float.NaN)
+        if (score != 0f && !Float.isNaN(score))
         {
           value = Float.toString(score);
         }
@@ -420,26 +450,14 @@ public class ChimeraCommands
         }
         for (int[] range : mappedRanges)
         {
-          addRange(featureValues, value, modelNumber, range[0], range[1],
-                  mapping.getChain());
+          addColourRange(featureValues, value, modelNumber, range[0],
+                  range[1], mapping.getChain());
         }
       }
     }
   }
 
   /**
-   * Answers true if the feature type is one we don't wish to propagate to
-   * Chimera - for now, RESNUM
-   * 
-   * @param type
-   * @return
-   */
-  static boolean suppressFeature(String type)
-  {
-    return PDBChain.RESNUM_FEATURE.equals(type);
-  }
-
-  /**
    * Traverse the map of features/values/models/chains/positions to construct a
    * list of 'setattr' commands (one per distinct feature type and value).
    * <p>
@@ -460,8 +478,7 @@ public class ChimeraCommands
     List<String> commands = new ArrayList<String>();
     for (String featureType : featureMap.keySet())
     {
-      String attributeName = "jv_"
-              + featureType.replace(" ", "_").replace("-", "_");
+      String attributeName = makeAttributeName(featureType);
 
       /*
        * clear down existing attributes for this feature
@@ -475,10 +492,13 @@ public class ChimeraCommands
         /*
          * for each distinct value recorded for this feature type,
          * add a command to set the attribute on the mapped residues
+         * Put values in single quotes, encoding any embedded single quotes
          */
         StringBuilder sb = new StringBuilder(128);
-        sb.append("setattr r ").append(attributeName).append(" \"")
-                .append(value.toString()).append("\" ");
+        String featureValue = value.toString();
+        featureValue = featureValue.replaceAll("\\'", "&#39;");
+        sb.append("setattr r ").append(attributeName).append(" '")
+                .append(featureValue).append("' ");
         sb.append(values.get(value).getAtomSpec());
         commands.add(sb.toString());
       }
@@ -487,4 +507,40 @@ public class ChimeraCommands
     return commands;
   }
 
+  /**
+   * Makes a prefixed and valid Chimera attribute name. A jv_ prefix is applied
+   * for a 'Jalview' namespace, and any non-alphanumeric character is converted
+   * to an underscore.
+   * 
+   * @param featureType
+   * @return
+   * 
+   *         <pre>
+   * &#64;see https://www.cgl.ucsf.edu/chimera/current/docs/UsersGuide/midas/setattr.html
+   *         </pre>
+   */
+  protected static String makeAttributeName(String featureType)
+  {
+    StringBuilder sb = new StringBuilder();
+    if (featureType != null)
+    {
+      for (char c : featureType.toCharArray())
+      {
+        sb.append(Character.isLetterOrDigit(c) ? c : '_');
+      }
+    }
+    String attName = NAMESPACE_PREFIX + sb.toString();
+
+    /*
+     * Chimera treats an attribute name ending in 'color' as colour-valued;
+     * Jalview doesn't, so prevent this by appending an underscore
+     */
+    if (attName.toUpperCase().endsWith("COLOR"))
+    {
+      attName += "_";
+    }
+
+    return attName;
+  }
+
 }