X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fviewmodel%2FOverviewDimensionsHideHidden.java;h=de90a216c701fe455be222cd14b7f3bace894686;hb=9062c3dbd065631f01af61f47a8cbafabe9c6c8b;hp=c525bc68eecdb9e3d809a2aa8565617e4dfd60ef;hpb=f6123f656fa387e11f506dedd09672a0d0ff5ac5;p=jalview.git

diff --git a/src/jalview/viewmodel/OverviewDimensionsHideHidden.java b/src/jalview/viewmodel/OverviewDimensionsHideHidden.java
index c525bc6..de90a21 100644
--- a/src/jalview/viewmodel/OverviewDimensionsHideHidden.java
+++ b/src/jalview/viewmodel/OverviewDimensionsHideHidden.java
@@ -50,6 +50,8 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
   public void updateViewportFromMouse(int mousex, int mousey,
           HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
   {
+    resetAlignmentDims();
+
     int xAsRes = getLeftXFromCentreX(mousex, hiddenCols);
     int yAsSeq = getTopYFromCentreY(mousey, hiddenSeqs);
 
@@ -61,24 +63,29 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
   public void adjustViewportFromMouse(int mousex, int mousey,
           HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
   {
+    resetAlignmentDims();
+
     // calculate translation in pixel terms:
     // get mouse location in viewport coords, add translation in viewport
     // coords, and update viewport as usual
-    int vpx = Math.round((float) mousex * alwidth / width);
-    int vpy = Math.round((float) mousey * alheight / sequencesHeight);
+    int vpx = Math.round(mousex * widthRatio);
+    int vpy = Math.round(mousey * heightRatio);
 
     updateViewportFromTopLeft(vpx + xdiff, vpy + ydiff, hiddenSeqs,
             hiddenCols);
 
   }
 
+  /**
+   * {@inheritDoc} Callers should have already called resetAlignmentDims to
+   * refresh alwidth, alheight and width/height ratios
+   */
   @Override
   protected void updateViewportFromTopLeft(int leftx, int topy,
           HiddenSequences hiddenSeqs, HiddenColumns hiddenCols)
   {
     int xAsRes = leftx;
     int yAsSeq = topy;
-    resetAlignmentDims();
 
     if (xAsRes < 0)
     {
@@ -132,9 +139,7 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
       }
     }
 
-    // update viewport
-    ranges.setStartRes(xAsRes);
-    ranges.setStartSeq(yAsSeq);
+    ranges.setStartResAndSeq(xAsRes, yAsSeq);
   }
 
   @Override
@@ -149,7 +154,7 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
   public AlignmentColsCollectionI getColumns(AlignmentI al)
   {
     return new VisibleColsCollection(0,
-            ranges.getAbsoluteAlignmentWidth() - 1, al);
+            ranges.getAbsoluteAlignmentWidth() - 1, al.getHiddenColumns());
   }
 
   @Override
@@ -164,19 +169,30 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
   {
     alwidth = ranges.getVisibleAlignmentWidth();
     alheight = ranges.getVisibleAlignmentHeight();
+
+    widthRatio = (float) alwidth / width;
+    heightRatio = (float) alheight / sequencesHeight;
   }
 
+  /**
+   * {@inheritDoc} Callers should have already called resetAlignmentDims to
+   * refresh widthRatio
+   */
   @Override
   protected int getLeftXFromCentreX(int mousex, HiddenColumns hidden)
   {
-    int vpx = Math.round((float) mousex * alwidth / width);
+    int vpx = Math.round(mousex * widthRatio);
     return vpx - ranges.getViewportWidth() / 2;
   }
 
+  /**
+   * {@inheritDoc} Callers should have already called resetAlignmentDims to
+   * refresh heightRatio
+   */
   @Override
   protected int getTopYFromCentreY(int mousey, HiddenSequences hidden)
   {
-    int vpy = Math.round((float) mousey * alheight / sequencesHeight);
+    int vpy = Math.round(mousey * heightRatio);
     return vpy - ranges.getViewportHeight() / 2;
   }
 
@@ -184,10 +200,12 @@ public class OverviewDimensionsHideHidden extends OverviewDimensions
   public void setDragPoint(int x, int y, HiddenSequences hiddenSeqs,
           HiddenColumns hiddenCols)
   {
+    resetAlignmentDims();
+
     // get alignment position of x and box (can get directly from vpranges) and
     // calculate difference between the positions
-    int vpx = Math.round((float) x * alwidth / width);
-    int vpy = Math.round((float) y * alheight / sequencesHeight);
+    int vpx = Math.round(x * widthRatio);
+    int vpy = Math.round(y * heightRatio);
 
     xdiff = ranges.getStartRes() - vpx;
     ydiff = ranges.getStartSeq() - vpy;