Grid header unaligned with content if horizontal scrollbar visible

[Ootmann]

Steps to reproduce:

• Go to page: https://www.sencha.com/examples/#Exa...motefiltergrid
• Resize the grid so that all content fits into the view
  
  • No scrollbars are visible
  
  
• Expand a column so that a horizontal scrollbar gets visible
  
  • As the horizontal scrollbar makes the grid also smaller in height, a vertical scroll bar appears, too
  
  
• Scroll to the right
• Investigate

Expected results:

• The header takes the width of the scroll bar into account and inserts a space at the right

What really happens:

• There is no space on the right of the header, the header is misaligned to the content
• GridView.calculateVBar evaluates vbar wrongly to false

http://stackoverflow.com/questions/3...ollbar-visible
Also reproducible with GXT 2

gxtbugcolumns.PNG