JAL-244 Adjust wrapped alignment widths to always maintain a visible wrapped sequence...

[jalview.git] / src / jalview / gui / SeqCanvas.java

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index d15cdcf..19d7c21 100755 (executable)
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -550,6 +550,20 @@ public class SeqCanvas extends JPanel implements ViewportListenerI
     return (canvasWidth - labelWidthEast - labelWidthWest) / charWidth;
   }
 
+  public int getMinimumWrappedCanvasWidth()
+  {
+    int charWidth = av.getCharWidth();
+    FontMetrics fm = getFontMetrics(av.getFont());
+    int labelWidth = 0;
+    if (av.getScaleRightWrapped() || av.getScaleLeftWrapped())
+    {
+      labelWidth = getLabelWidth(fm);
+    }
+    labelWidthEast = av.getScaleRightWrapped() ? labelWidth : 0;
+    labelWidthWest = av.getScaleLeftWrapped() ? labelWidth : 0;
+    return labelWidthEast + labelWidthWest + charWidth;
+  }
+
   /**
    * Returns a pixel width sufficient to show the largest sequence coordinate
    * (end position) in the alignment, calculated as the FontMetrics width of