X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fapi%2FAlignViewportI.java;h=d15c5fb21a9a23e67d7b8c2b707dae5f77db0e63;hb=a7634a9f5f5f691a7bff7bb05ca21a340aa2f834;hp=dcd325850bf2b212561e6f056239bd84b36ecc40;hpb=042832306c7e7aa0484079f3bab1e141b2944de5;p=jalview.git

diff --git a/src/jalview/api/AlignViewportI.java b/src/jalview/api/AlignViewportI.java
index dcd3258..d15c5fb 100644
--- a/src/jalview/api/AlignViewportI.java
+++ b/src/jalview/api/AlignViewportI.java
@@ -39,6 +39,7 @@ import jalview.viewmodel.ViewportRanges;
 import java.awt.Color;
 import java.awt.Font;
 import java.util.Hashtable;
+import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 
@@ -433,9 +434,19 @@ public interface AlignViewportI extends ViewStyleI
    */
   void setFollowHighlight(boolean b);
 
+  /**
+   * configure the feature renderer with predefined feature settings
+   * 
+   * @param featureSettings
+   */
   public void applyFeaturesStyle(FeatureSettingsModelI featureSettings);
 
   /**
+   * Apply the given feature settings on top of existing feature settings.
+   */
+  public void mergeFeaturesStyle(FeatureSettingsModelI featureSettings);
+
+  /**
    * check if current selection group is defined on the view, or is simply a
    * temporary group.
    * 
@@ -529,4 +540,16 @@ public interface AlignViewportI extends ViewStyleI
    *          - a group defined on sequences in the alignment held by the view
    */
   void addSequenceGroup(SequenceGroup sequenceGroup);
+
+  /**
+   * Returns an interator over the [start, end] column positions of the visible
+   * regions of the alignment
+   * 
+   * @param selectedRegionOnly
+   *          if true, and the view has a selection region, then only the
+   *          intersection of visible columns with the selection region is
+   *          returned
+   * @return
+   */
+  Iterator<int[]> getViewAsVisibleContigs(boolean selectedRegionOnly);
 }