viewport flag to indicate when structure view needs updating

[jalview.git] / src / jalview / viewmodel / AlignmentViewport.java

diff --git a/src/jalview/viewmodel/AlignmentViewport.java b/src/jalview/viewmodel/AlignmentViewport.java
index 1366ada..c4923cf 100644 (file)
--- a/src/jalview/viewmodel/AlignmentViewport.java
+++ b/src/jalview/viewmodel/AlignmentViewport.java
@@ -2954,4 +2954,32 @@ public abstract class AlignmentViewport
   {
     return currentTree;
   }
+
+  /**
+   * flag set to indicate if structure views might be out of sync with sequences
+   * in the alignment
+   */
+
+  private boolean needToUpdateStructureViews = false;
+
+  @Override
+  public boolean isUpdateStructures()
+  {
+    return needToUpdateStructureViews;
+  }
+
+  @Override
+  public void setUpdateStructures(boolean update)
+  {
+    needToUpdateStructureViews = update;
+  }
+
+  @Override
+  public boolean needToUpdateStructureViews()
+  {
+    boolean update = needToUpdateStructureViews;
+    needToUpdateStructureViews = false;
+    return update;
+  }
+
 }